diff options
Diffstat (limited to 'lib/libc/net')
81 files changed, 0 insertions, 20922 deletions
diff --git a/lib/libc/net/Makefile.inc b/lib/libc/net/Makefile.inc deleted file mode 100644 index 22c4010..0000000 --- a/lib/libc/net/Makefile.inc +++ /dev/null @@ -1,82 +0,0 @@ -# from @(#)Makefile.inc 8.2 (Berkeley) 9/5/93 -# $FreeBSD$ - -# machine-independent net sources -.PATH: ${.CURDIR}/../libc/${MACHINE_ARCH}/net ${.CURDIR}/../libc/net - -SRCS+= addr2ascii.c ascii2addr.c base64.c ether_addr.c getaddrinfo.c \ - gethostbydns.c gethostbyht.c gethostbynis.c gethostnamadr.c \ - getnameinfo.c \ - getnetbydns.c getnetbyht.c getnetbynis.c getnetnamadr.c \ - getproto.c getprotoent.c getprotoname.c getservbyname.c \ - getservbyport.c getservent.c herror.c inet_addr.c ifname.c \ - inet_lnaof.c \ - inet_makeaddr.c inet_net_ntop.c inet_net_pton.c inet_neta.c \ - inet_netof.c inet_network.c inet_ntoa.c inet_ntop.c \ - inet_pton.c ip6opt.c linkaddr.c map_v4v6.c name6.c ns_addr.c \ - ns_name.c ns_netint.c \ - ns_ntoa.c ns_parse.c ns_print.c ns_ttl.c nsap_addr.c \ - rcmd.c recv.c res_comp.c res_data.c res_debug.c \ - res_init.c res_mkquery.c res_mkupdate.c res_query.c res_send.c \ - res_update.c rthdr.c send.c vars.c -# not supported: iso_addr.c - -CFLAGS+=-DINET6 - -# machine-dependent net sources -.include "${.CURDIR}/../libc/${MACHINE_ARCH}/net/Makefile.inc" - -.if ${LIB} == "c" -MAN3+= addr2ascii.3 byteorder.3 ethers.3 getaddrinfo.3 gethostbyname.3 \ - getipnodebyname.3 \ - getnameinfo.3 getnetent.3 getprotoent.3 getservent.3 if_indextoname.3 \ - inet.3 inet6_option_space.3 inet6_rthdr_space.3 linkaddr.3 \ - rcmd.3 resolver.3 -# not installed: iso_addr.3 ns.3 - -MLINKS+=addr2ascii.3 ascii2addr.3 -MLINKS+=byteorder.3 htonl.3 byteorder.3 htons.3 byteorder.3 ntohl.3 \ - byteorder.3 ntohs.3 -MLINKS+=ethers.3 ether_aton.3 ethers.3 ether_hostton.3 ethers.3 ether_line.3 \ - ethers.3 ether_ntoa.3 ethers.3 ether_ntohost.3 -MLINKS+=getaddrinfo.3 freeaddrinfo.3 getaddrinfo.3 gai_strerror.3 -MLINKS+=gethostbyname.3 endhostent.3 gethostbyname.3 gethostbyaddr.3 \ - gethostbyname.3 gethostbyname2.3 gethostbyname.3 gethostent.3 \ - gethostbyname.3 herror.3 gethostbyname.3 hstrerror.3 \ - gethostbyname.3 sethostent.3 -MLINKS+=getipnodebyname.3 getipnodebyaddr.3 getipnodebyname.3 freehostent.3 -MLINKS+=getnetent.3 endnetent.3 getnetent.3 getnetbyaddr.3 \ - getnetent.3 getnetbyname.3 getnetent.3 setnetent.3 -MLINKS+=getprotoent.3 endprotoent.3 getprotoent.3 getprotobyname.3 \ - getprotoent.3 getprotobynumber.3 getprotoent.3 setprotoent.3 -MLINKS+=getservent.3 endservent.3 getservent.3 getservbyname.3 \ - getservent.3 getservbyport.3 getservent.3 setservent.3 -MLINKS+=if_indextoname.3 if_nametoindex.3 if_indextoname.3 if_nameindex.3 \ - if_indextoname.3 if_freenameindex.3 -MLINKS+=inet.3 addr.3 inet.3 inet_addr.3 inet.3 inet_aton.3 \ - inet.3 inet_lnaof.3 inet.3 inet_makeaddr.3 inet.3 inet_netof.3 \ - inet.3 inet_network.3 inet.3 inet_ntoa.3 \ - inet.3 inet_ntop.3 inet.3 inet_pton.3 \ - inet.3 network.3 inet.3 ntoa.3 -MLINKS+=inet6_option_space.3 inet6_option_alloc.3 \ - inet6_option_space.3 inet6_option_append.3 \ - inet6_option_space.3 inet6_option_find.3 \ - inet6_option_space.3 inet6_option_init.3 \ - inet6_option_space.3 inet6_option_next.3 \ - inet6_rthdr_space.3 inet6_rthdr_add.3 \ - inet6_rthdr_space.3 inet6_rthdr_getaddr.3 \ - inet6_rthdr_space.3 inet6_rthdr_getflags.3 \ - inet6_rthdr_space.3 inet6_rthdr_init.3 \ - inet6_rthdr_space.3 inet6_rthdr_lasthop.3 \ - inet6_rthdr_space.3 inet6_rthdr_reverse.3 \ - inet6_rthdr_space.3 inet6_rthdr_segments.3 -MLINKS+=linkaddr.3 link_addr.3 linkaddr.3 link_ntoa.3 -#MLINKS+=ns.3 ns_addr.3 ns.3 ns_ntoa.3 -MLINKS+=rcmd.3 iruserok.3 rcmd.3 iruserok_sa.3 \ - rcmd.3 rcmd_af.3 \ - rcmd.3 rresvport.3 rcmd.3 rresvport_af.3 \ - rcmd.3 ruserok.3 -MLINKS+=resolver.3 dn_comp.3 resolver.3 dn_expand.3 resolver.3 res_init.3 \ - resolver.3 res_mkquery.3 resolver.3 res_query.3 \ - resolver.3 res_search.3 resolver.3 res_send.3 -.endif diff --git a/lib/libc/net/addr2ascii.3 b/lib/libc/net/addr2ascii.3 deleted file mode 100644 index b5ec167..0000000 --- a/lib/libc/net/addr2ascii.3 +++ /dev/null @@ -1,217 +0,0 @@ -.\" -.\" Copyright 1996 Massachusetts Institute of Technology -.\" -.\" Permission to use, copy, modify, and distribute this software and -.\" its documentation for any purpose and without fee is hereby -.\" granted, provided that both the above copyright notice and this -.\" permission notice appear in all copies, that both the above -.\" copyright notice and this permission notice appear in all -.\" supporting documentation, and that the name of M.I.T. not be used -.\" in advertising or publicity pertaining to distribution of the -.\" software without specific, written prior permission. M.I.T. makes -.\" no representations about the suitability of this software for any -.\" purpose. It is provided "as is" without express or implied -.\" warranty. -.\" -.\" THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS -.\" ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE, -.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF -.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT -.\" SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -.\" LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF -.\" USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND -.\" ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, -.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT -.\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" $ANA: addr2ascii.3,v 1.1 1996/06/13 18:41:46 wollman Exp $ -.\" $FreeBSD$ -.\" -.Dd June 13, 1996 -.Dt ADDR2ASCII 3 -.Os -.Sh NAME -.Nm addr2ascii , -.Nm ascii2addr -.Nd Generic address formatting routines -.Sh SYNOPSIS -.Fd #include <sys/types.h> -.Fd #include <netinet/in.h> -.Fd #include <arpa/inet.h> -.Ft "char *" -.Fn addr2ascii "int af" "const void *addrp" "int len" "char *buf" -.Ft int -.Fn ascii2addr "int af" "const char *ascii" "void *result" -.Sh DESCRIPTION -The routines -.Fn addr2ascii -and -.Fn ascii2addr -are used to convert network addresses between binary form and a -printable form appropriate to the address family. Both functions take -an -.Fa af -argument, specifying the address family to be used in the conversion -process. -(Currently, only the -.Dv AF_INET -and -.Dv AF_LINK -address families are supported.) -.Pp -The -.Fn addr2ascii -function -is used to convert binary, network-format addresses into printable -form. In addition to -.Fa af , -there are three other arguments. The -.Fa addrp -argument is a pointer to the network address to be converted. -The -.Fa len -argument is the length of the address. The -.Fa buf -argument is an optional pointer to a caller-allocated buffer to hold -the result; if a null pointer is passed, -.Fn addr2ascii -uses a statically-allocated buffer. -.Pp -The -.Fn ascii2addr -function performs the inverse operation to -.Fn addr2ascii . -In addition to -.Fa af , -it takes two parameters, -.Fa ascii -and -.Fa result . -The -.Fa ascii -parameter is a pointer to the string which is to be converted into -binary. The -.Fa result -parameter is a pointer to an appropriate network address structure for -the specified family. -.Pp -The following gives the appropriate structure to use for binary -addresses in the specified family: -.Pp -.Bl -tag -width AF_INETxxxx -compact -.It Dv AF_INET -.Li struct in_addr -.Pq in Aq Pa netinet/in.h -.It Dv AF_LINK -.Li struct sockaddr_dl -.Pq in Aq Pa net/if_dl.h -.\" .It Dv AF_INET6 -.\" .Li struct in6_addr -.\" .Pq in Aq Pa netinet6/in6.h -.El -.Sh RETURN VALUES -The -.Fn addr2ascii -function returns the address of the buffer it was passed, or a static -buffer if the a null pointer was passed; on failure, it returns a null -pointer. -The -.Fn ascii2addr -function returns the length of the binary address in bytes, or -1 on -failure. -.Sh EXAMPLES -The -.Xr inet 3 -functions -.Fn inet_ntoa -and -.Fn inet_aton -could be implemented thusly: -.Bd -literal -offset indent -#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> - -char * -inet_ntoa(struct in_addr addr) -{ - return addr2ascii(AF_INET, &addr, sizeof addr, 0); -} - -int -inet_aton(const char *ascii, struct in_addr *addr) -{ - return (ascii2addr(AF_INET, ascii, addr) - == sizeof(*addr)); -} -.Ed -.Pp -In actuality, this cannot be done because -.Fn addr2ascii -and -.Fn ascii2addr -are implemented in terms of the -.Xr inet 3 -functions, rather than the other way around. -.Sh ERRORS -When a failure is returned, -.Li errno -is set to one of the following values: -.Bl -tag -width [EPROTONOSUPPORT] -.It Bq Er ENAMETOOLONG -The -.Fn addr2ascii -routine was passed a -.Fa len -parameter which was inappropriate for the address family given by -.Fa af . -.It Bq Er EPROTONOSUPPORT -Either routine was passed an -.Fa af -parameter other than -.Dv AF_INET -or -.Dv AF_LINK . -.It Bq Er EINVAL -The string passed to -.Fn ascii2addr -was improperly formatted for address family -.Fa af . -.El -.Sh SEE ALSO -.Xr inet 3 , -.Xr linkaddr 3 , -.Xr inet 4 -.Sh HISTORY -An interface close to this one was originally suggested by Craig -Partridge. This particular interface originally appeared in the -.Tn INRIA -.Tn IPv6 -implementation. -.Sh AUTHORS -Code and documentation by -.An Garrett A. Wollman , -MIT Laboratory for Computer Science. -.Sh BUGS -The original implementations supported IPv6. This support should -eventually be resurrected. The -.Tn NRL -implementation also included support for the -.Dv AF_ISO -and -.Dv AF_NS -address families. -.Pp -The genericity of this interface is somewhat questionable. A truly -generic interface would provide a means for determining the length of -the buffer to be used so that it could be dynamically allocated, and -would always require a -.Dq Li "struct sockaddr" -to hold the binary address. Unfortunately, this is incompatible with existing -practice. This limitation means that a routine for printing network -addresses from arbitrary address families must still have internal -knowledge of the maximum buffer length needed and the appropriate part -of the address to use as the binary address. diff --git a/lib/libc/net/addr2ascii.c b/lib/libc/net/addr2ascii.c deleted file mode 100644 index 5bee3ea..0000000 --- a/lib/libc/net/addr2ascii.c +++ /dev/null @@ -1,92 +0,0 @@ -/* - * Copyright 1996 Massachusetts Institute of Technology - * - * Permission to use, copy, modify, and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that both the above copyright notice and this - * permission notice appear in all copies, that both the above - * copyright notice and this permission notice appear in all - * supporting documentation, and that the name of M.I.T. not be used - * in advertising or publicity pertaining to distribution of the - * software without specific, written prior permission. M.I.T. makes - * no representations about the suitability of this software for any - * purpose. It is provided "as is" without express or implied - * warranty. - * - * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS - * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT - * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $ANA: addr2ascii.c,v 1.1 1996/06/13 18:41:46 wollman Exp $ - */ - -#include <sys/types.h> -#include <sys/socket.h> - -#include <errno.h> -#include <string.h> - -#include <net/if_dl.h> -#include <netinet/in.h> -#include <arpa/inet.h> - -/*- - * Convert a network address from binary to printable numeric format. - * This API is copied from INRIA's IPv6 implementation, but it is a - * bit bogus in two ways: - * - * 1) There is no value in passing both an address family and - * an address length; either one should imply the other, - * or we should be passing sockaddrs instead. - * 2) There should by contrast be /added/ a length for the buffer - * that we pass in, so that programmers are spared the need to - * manually calculate (read: ``guess'') the maximum length. - * - * Flash: the API is also the same in the NRL implementation, and seems to - * be some sort of standard, so we appear to be stuck with both the bad - * naming and the poor choice of arguments. - */ -char * -addr2ascii(af, addrp, len, buf) - int af; - const void *addrp; - int len; /* should be size_t XXX */ - char *buf; /* XXX should pass length of buffer */ -{ - static char staticbuf[64]; /* 64 for AF_LINK > 16 for AF_INET */ - - if (!buf) - buf = staticbuf; - - switch(af) { - case AF_INET: - if (len != sizeof(struct in_addr)) { - errno = ENAMETOOLONG; - return 0; - } - strcpy(buf, inet_ntoa(*(const struct in_addr *)addrp)); - break; - - case AF_LINK: - if (len != sizeof(struct sockaddr_dl)) { - errno = ENAMETOOLONG; - return 0; - } - strcpy(buf, link_ntoa((const struct sockaddr_dl *)addrp)); - break; - - default: - errno = EPROTONOSUPPORT; - return 0; - } - return buf; -} diff --git a/lib/libc/net/ascii2addr.c b/lib/libc/net/ascii2addr.c deleted file mode 100644 index 0b5bab4..0000000 --- a/lib/libc/net/ascii2addr.c +++ /dev/null @@ -1,72 +0,0 @@ -/* - * Copyright 1996 Massachusetts Institute of Technology - * - * Permission to use, copy, modify, and distribute this software and - * its documentation for any purpose and without fee is hereby - * granted, provided that both the above copyright notice and this - * permission notice appear in all copies, that both the above - * copyright notice and this permission notice appear in all - * supporting documentation, and that the name of M.I.T. not be used - * in advertising or publicity pertaining to distribution of the - * software without specific, written prior permission. M.I.T. makes - * no representations about the suitability of this software for any - * purpose. It is provided "as is" without express or implied - * warranty. - * - * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS - * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT - * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $ANA: ascii2addr.c,v 1.2 1996/06/13 18:46:02 wollman Exp $ - */ - -#include <sys/types.h> -#include <sys/socket.h> - -#include <errno.h> -#include <string.h> - -#include <net/if_dl.h> -#include <netinet/in.h> -#include <arpa/inet.h> - -int -ascii2addr(af, ascii, result) - int af; - const char *ascii; - void *result; -{ - struct in_addr *ina; - char strbuf[4*sizeof("123")]; /* long enough for V4 only */ - - switch(af) { - case AF_INET: - ina = result; - strbuf[0] = '\0'; - strncat(strbuf, ascii, (sizeof strbuf)-1); - if (inet_aton(strbuf, ina)) - return sizeof(struct in_addr); - errno = EINVAL; - break; - - case AF_LINK: - link_addr(ascii, result); - /* oops... no way to detect failure */ - return sizeof(struct sockaddr_dl); - - default: - errno = EPROTONOSUPPORT; - break; - } - - return -1; -} diff --git a/lib/libc/net/base64.c b/lib/libc/net/base64.c deleted file mode 100644 index 1301b6a..0000000 --- a/lib/libc/net/base64.c +++ /dev/null @@ -1,316 +0,0 @@ -/* - * Copyright (c) 1996, 1998 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -/* - * Portions Copyright (c) 1995 by International Business Machines, Inc. - * - * International Business Machines, Inc. (hereinafter called IBM) grants - * permission under its copyrights to use, copy, modify, and distribute this - * Software with or without fee, provided that the above copyright notice and - * all paragraphs of this notice appear in all copies, and that the name of IBM - * not be used in connection with the marketing of any product incorporating - * the Software or modifications thereof, without specific, written prior - * permission. - * - * To the extent it has a right to do so, IBM grants an immunity from suit - * under its patents, if any, for the use, sale or manufacture of products to - * the extent that such products are used for performing Domain Name System - * dynamic updates in TCP/IP networks by means of the Software. No immunity is - * granted for any product per se or for any other function of any product. - * - * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A - * PARTICULAR PURPOSE. IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL, - * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN - * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES. - */ - -#if !defined(LINT) && !defined(CODECENTER) -static char rcsid[] = "$FreeBSD$"; -#endif /* not lint */ - -#include <sys/types.h> -#include <sys/param.h> -#include <sys/socket.h> - -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> - -#include <ctype.h> -#include <resolv.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#define Assert(Cond) if (!(Cond)) abort() - -static const char Base64[] = - "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; -static const char Pad64 = '='; - -/* (From RFC1521 and draft-ietf-dnssec-secext-03.txt) - The following encoding technique is taken from RFC 1521 by Borenstein - and Freed. It is reproduced here in a slightly edited form for - convenience. - - A 65-character subset of US-ASCII is used, enabling 6 bits to be - represented per printable character. (The extra 65th character, "=", - is used to signify a special processing function.) - - The encoding process represents 24-bit groups of input bits as output - strings of 4 encoded characters. Proceeding from left to right, a - 24-bit input group is formed by concatenating 3 8-bit input groups. - These 24 bits are then treated as 4 concatenated 6-bit groups, each - of which is translated into a single digit in the base64 alphabet. - - Each 6-bit group is used as an index into an array of 64 printable - characters. The character referenced by the index is placed in the - output string. - - Table 1: The Base64 Alphabet - - Value Encoding Value Encoding Value Encoding Value Encoding - 0 A 17 R 34 i 51 z - 1 B 18 S 35 j 52 0 - 2 C 19 T 36 k 53 1 - 3 D 20 U 37 l 54 2 - 4 E 21 V 38 m 55 3 - 5 F 22 W 39 n 56 4 - 6 G 23 X 40 o 57 5 - 7 H 24 Y 41 p 58 6 - 8 I 25 Z 42 q 59 7 - 9 J 26 a 43 r 60 8 - 10 K 27 b 44 s 61 9 - 11 L 28 c 45 t 62 + - 12 M 29 d 46 u 63 / - 13 N 30 e 47 v - 14 O 31 f 48 w (pad) = - 15 P 32 g 49 x - 16 Q 33 h 50 y - - Special processing is performed if fewer than 24 bits are available - at the end of the data being encoded. A full encoding quantum is - always completed at the end of a quantity. When fewer than 24 input - bits are available in an input group, zero bits are added (on the - right) to form an integral number of 6-bit groups. Padding at the - end of the data is performed using the '=' character. - - Since all base64 input is an integral number of octets, only the - ------------------------------------------------- - following cases can arise: - - (1) the final quantum of encoding input is an integral - multiple of 24 bits; here, the final unit of encoded - output will be an integral multiple of 4 characters - with no "=" padding, - (2) the final quantum of encoding input is exactly 8 bits; - here, the final unit of encoded output will be two - characters followed by two "=" padding characters, or - (3) the final quantum of encoding input is exactly 16 bits; - here, the final unit of encoded output will be three - characters followed by one "=" padding character. - */ - -int -b64_ntop(u_char const *src, size_t srclength, char *target, size_t targsize) { - size_t datalength = 0; - u_char input[3]; - u_char output[4]; - size_t i; - - while (2 < srclength) { - input[0] = *src++; - input[1] = *src++; - input[2] = *src++; - srclength -= 3; - - output[0] = input[0] >> 2; - output[1] = ((input[0] & 0x03) << 4) + (input[1] >> 4); - output[2] = ((input[1] & 0x0f) << 2) + (input[2] >> 6); - output[3] = input[2] & 0x3f; - Assert(output[0] < 64); - Assert(output[1] < 64); - Assert(output[2] < 64); - Assert(output[3] < 64); - - if (datalength + 4 > targsize) - return (-1); - target[datalength++] = Base64[output[0]]; - target[datalength++] = Base64[output[1]]; - target[datalength++] = Base64[output[2]]; - target[datalength++] = Base64[output[3]]; - } - - /* Now we worry about padding. */ - if (0 != srclength) { - /* Get what's left. */ - input[0] = input[1] = input[2] = '\0'; - for (i = 0; i < srclength; i++) - input[i] = *src++; - - output[0] = input[0] >> 2; - output[1] = ((input[0] & 0x03) << 4) + (input[1] >> 4); - output[2] = ((input[1] & 0x0f) << 2) + (input[2] >> 6); - Assert(output[0] < 64); - Assert(output[1] < 64); - Assert(output[2] < 64); - - if (datalength + 4 > targsize) - return (-1); - target[datalength++] = Base64[output[0]]; - target[datalength++] = Base64[output[1]]; - if (srclength == 1) - target[datalength++] = Pad64; - else - target[datalength++] = Base64[output[2]]; - target[datalength++] = Pad64; - } - if (datalength >= targsize) - return (-1); - target[datalength] = '\0'; /* Returned value doesn't count \0. */ - return (datalength); -} - -/* skips all whitespace anywhere. - converts characters, four at a time, starting at (or after) - src from base - 64 numbers into three 8 bit bytes in the target area. - it returns the number of data bytes stored at the target, or -1 on error. - */ - -int -b64_pton(src, target, targsize) - char const *src; - u_char *target; - size_t targsize; -{ - int tarindex, state, ch; - char *pos; - - state = 0; - tarindex = 0; - - while ((ch = *src++) != '\0') { - if (isspace((unsigned char)ch)) /* Skip whitespace anywhere. */ - continue; - - if (ch == Pad64) - break; - - pos = strchr(Base64, ch); - if (pos == 0) /* A non-base64 character. */ - return (-1); - - switch (state) { - case 0: - if (target) { - if ((size_t)tarindex >= targsize) - return (-1); - target[tarindex] = (pos - Base64) << 2; - } - state = 1; - break; - case 1: - if (target) { - if ((size_t)tarindex + 1 >= targsize) - return (-1); - target[tarindex] |= (pos - Base64) >> 4; - target[tarindex+1] = ((pos - Base64) & 0x0f) - << 4 ; - } - tarindex++; - state = 2; - break; - case 2: - if (target) { - if ((size_t)tarindex + 1 >= targsize) - return (-1); - target[tarindex] |= (pos - Base64) >> 2; - target[tarindex+1] = ((pos - Base64) & 0x03) - << 6; - } - tarindex++; - state = 3; - break; - case 3: - if (target) { - if ((size_t)tarindex >= targsize) - return (-1); - target[tarindex] |= (pos - Base64); - } - tarindex++; - state = 0; - break; - default: - abort(); - } - } - - /* - * We are done decoding Base-64 chars. Let's see if we ended - * on a byte boundary, and/or with erroneous trailing characters. - */ - - if (ch == Pad64) { /* We got a pad char. */ - ch = *src++; /* Skip it, get next. */ - switch (state) { - case 0: /* Invalid = in first position */ - case 1: /* Invalid = in second position */ - return (-1); - - case 2: /* Valid, means one byte of info */ - /* Skip any number of spaces. */ - for ((void)NULL; ch != '\0'; ch = *src++) - if (!isspace((unsigned char)ch)) - break; - /* Make sure there is another trailing = sign. */ - if (ch != Pad64) - return (-1); - ch = *src++; /* Skip the = */ - /* Fall through to "single trailing =" case. */ - /* FALLTHROUGH */ - - case 3: /* Valid, means two bytes of info */ - /* - * We know this char is an =. Is there anything but - * whitespace after it? - */ - for ((void)NULL; ch != '\0'; ch = *src++) - if (!isspace((unsigned char)ch)) - return (-1); - - /* - * Now make sure for cases 2 and 3 that the "extra" - * bits that slopped past the last full byte were - * zeros. If we don't check them, they become a - * subliminal channel. - */ - if (target && target[tarindex] != 0) - return (-1); - } - } else { - /* - * We ended by seeing the end of the string. Make sure we - * have no partial bytes lying around. - */ - if (state != 0) - return (-1); - } - - return (tarindex); -} diff --git a/lib/libc/net/byteorder.3 b/lib/libc/net/byteorder.3 deleted file mode 100644 index 3c55d21c..0000000 --- a/lib/libc/net/byteorder.3 +++ /dev/null @@ -1,77 +0,0 @@ -.\" Copyright (c) 1983, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" @(#)byteorder.3 8.1 (Berkeley) 6/4/93 -.\" $FreeBSD$ -.\" -.Dd June 4, 1993 -.Dt BYTEORDER 3 -.Os BSD 4.2 -.Sh NAME -.Nm htonl , -.Nm htons , -.Nm ntohl , -.Nm ntohs -.Nd convert values between host and network byte order -.Sh SYNOPSIS -.Fd #include <sys/param.h> -.Ft u_long -.Fn htonl "u_long hostlong" -.Ft u_short -.Fn htons "u_short hostshort" -.Ft u_long -.Fn ntohl "u_long netlong" -.Ft u_short -.Fn ntohs "u_short netshort" -.Sh DESCRIPTION -These routines convert 16 and 32 bit quantities between network -byte order and host byte order. -On machines which have a byte order which is the same as the network -order, routines are defined as null macros. -.Pp -These routines are most often used in conjunction with Internet -addresses and ports as returned by -.Xr gethostbyname 3 -and -.Xr getservent 3 . -.Sh SEE ALSO -.Xr gethostbyname 3 , -.Xr getservent 3 -.Sh HISTORY -The -.Nm byteorder -functions appeared in -.Bx 4.2 . -.Sh BUGS -On the -.Tn VAX -bytes are handled backwards from most everyone else in -the world. This is not expected to be fixed in the near future. diff --git a/lib/libc/net/ether_addr.c b/lib/libc/net/ether_addr.c deleted file mode 100644 index 89aa7b5..0000000 --- a/lib/libc/net/ether_addr.c +++ /dev/null @@ -1,226 +0,0 @@ -/* - * Copyright (c) 1995 - * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Bill Paul. - * 4. Neither the name of the author nor the names of any co-contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * ethernet address conversion and lookup routines - * - * Written by Bill Paul <wpaul@ctr.columbia.edu> - * Center for Telecommunications Research - * Columbia University, New York City - * - * $FreeBSD$ - */ - - -#include <stdio.h> -#include <paths.h> -#include <sys/types.h> -#include <string.h> -#include <stdlib.h> -#include <sys/param.h> -#include <sys/socket.h> -#include <net/ethernet.h> -#ifdef YP -#include <rpc/rpc.h> -#include <rpcsvc/yp_prot.h> -#include <rpcsvc/ypclnt.h> -#endif - -#ifndef _PATH_ETHERS -#define _PATH_ETHERS "/etc/ethers" -#endif - -/* - * Parse a string of text containing an ethernet address and hostname - * and separate it into its component parts. - */ -int ether_line(l, e, hostname) - char *l; - struct ether_addr *e; - char *hostname; -{ - int i, o[6]; - - i = sscanf(l, "%x:%x:%x:%x:%x:%x %s", &o[0], &o[1], &o[2], - &o[3], &o[4], &o[5], - hostname); - if (i != 7) - return (i); - - for (i=0; i<6; i++) - e->octet[i] = o[i]; - return (0); -} - -/* - * Convert an ASCII representation of an ethernet address to - * binary form. - */ -struct ether_addr *ether_aton(a) - char *a; -{ - int i; - static struct ether_addr o; - unsigned int o0, o1, o2, o3, o4, o5; - - i = sscanf(a, "%x:%x:%x:%x:%x:%x", &o0, &o1, &o2, &o3, &o4, &o5); - - if (i != 6) - return (NULL); - - o.octet[0]=o0; - o.octet[1]=o1; - o.octet[2]=o2; - o.octet[3]=o3; - o.octet[4]=o4; - o.octet[5]=o5; - - return ((struct ether_addr *)&o); -} - -/* - * Convert a binary representation of an ethernet address to - * an ASCII string. - */ -char *ether_ntoa(n) - struct ether_addr *n; -{ - int i; - static char a[18]; - - i = sprintf(a,"%x:%x:%x:%x:%x:%x",n->octet[0],n->octet[1],n->octet[2], - n->octet[3],n->octet[4],n->octet[5]); - if (i < 11) - return (NULL); - return ((char *)&a); -} - -/* - * Map an ethernet address to a hostname. Use either /etc/ethers or - * NIS/YP. - */ - -int ether_ntohost(hostname, e) - char *hostname; - struct ether_addr *e; -{ - FILE *fp; - char buf[BUFSIZ + 2]; - struct ether_addr local_ether; - char local_host[MAXHOSTNAMELEN]; -#ifdef YP - char *result; - int resultlen; - char *ether_a; - char *yp_domain; -#endif - if ((fp = fopen(_PATH_ETHERS, "r")) == NULL) - return (1); - - while (fgets(buf,BUFSIZ,fp)) { - if (buf[0] == '#') - continue; -#ifdef YP - if (buf[0] == '+') { - if (yp_get_default_domain(&yp_domain)) - continue; - ether_a = ether_ntoa(e); - if (yp_match(yp_domain, "ethers.byaddr", ether_a, - strlen(ether_a), &result, &resultlen)) { - continue; - } - strncpy(buf, result, resultlen); - buf[resultlen] = '\0'; - free(result); - } -#endif - if (!ether_line(buf, &local_ether, local_host)) { - if (!bcmp((char *)&local_ether.octet[0], - (char *)&e->octet[0], 6)) { - /* We have a match */ - strcpy(hostname, local_host); - fclose(fp); - return(0); - } - } - } - fclose(fp); - return (1); -} - -/* - * Map a hostname to an ethernet address using /etc/ethers or - * NIS/YP. - */ -int ether_hostton(hostname, e) - char *hostname; - struct ether_addr *e; -{ - FILE *fp; - char buf[BUFSIZ + 2]; - struct ether_addr local_ether; - char local_host[MAXHOSTNAMELEN]; -#ifdef YP - char *result; - int resultlen; - char *yp_domain; -#endif - if ((fp = fopen(_PATH_ETHERS, "r")) == NULL) - return (1); - - while (fgets(buf,BUFSIZ,fp)) { - if (buf[0] == '#') - continue; -#ifdef YP - if (buf[0] == '+') { - if (yp_get_default_domain(&yp_domain)) - continue; - if (yp_match(yp_domain, "ethers.byname", hostname, - strlen(hostname), &result, &resultlen)) { - continue; - } - strncpy(buf, result, resultlen); - buf[resultlen] = '\0'; - free(result); - } -#endif - if (!ether_line(buf, &local_ether, local_host)) { - if (!strcmp(hostname, local_host)) { - /* We have a match */ - bcopy((char *)&local_ether.octet[0], - (char *)&e->octet[0], 6); - fclose(fp); - return(0); - } - } - } - fclose(fp); - return (1); -} diff --git a/lib/libc/net/ethers.3 b/lib/libc/net/ethers.3 deleted file mode 100644 index 72b7488..0000000 --- a/lib/libc/net/ethers.3 +++ /dev/null @@ -1,196 +0,0 @@ -.\" Copyright (c) 1995 -.\" Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by Bill Paul. -.\" 4. Neither the name of the author nor the names of any co-contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" $FreeBSD$ -.\" -.Dd April 12, 1995 -.Dt ETHERS 3 -.Os FreeBSD 2.1 -.Sh NAME -.Nm ethers , -.Nm ether_line , -.Nm ether_aton , -.Nm ether_ntoa , -.Nm ether_ntohost , -.Nm ether_hostton -.Nd Ethernet address conversion and lookup routines -.Sh SYNOPSIS -.Fd #include <sys/types.h> -.Fd #include <sys/socket.h> -.Fd #include <net/ethernet.h> -.Ft int -.Fn ether_line "char *l" "struct ether_addr *e" "char *hostname" -.Ft struct ether_addr * -.Fn ether_aton "char *a" -.Ft char * -.Fn ether_ntoa "struct ether_addr *n" -.Ft int -.Fn ether_ntohost "char *hostname" "struct ether_addr *e" -.Ft int -.Fn ether_hostton "char *hostname" "struct ether_addr *e" -.Sh DESCRIPTION -These functions operate on ethernet addresses using an -.Ar ether_addr -structure, which is defined in the header file -.Aq Pa netinet/if_ether.h : -.Bd -literal -offset indent -/* - * The number of bytes in an ethernet (MAC) address. - */ -#define ETHER_ADDR_LEN 6 - -/* - * Structure of a 48-bit Ethernet address. - */ -struct ether_addr { - u_char octet[ETHER_ADDR_LEN]; -}; -.Ed -.Pp -The function -.Fn ether_line -scans -.Ar l , -an -.Tn ASCII -string in -.Xr ethers 5 -format and sets -.Ar e -to the ethernet address specified in the string and -.Ar h -to the hostname. -This function is used to parse lines from -.Pa /etc/ethers -into their component parts. -.Pp -The -.Fn ether_aton -function converts an -.Tn ASCII -representation of an ethernet address into an -.Ar ether_addr -structure. -Likewise, -.Fn ether_ntoa -converts an ethernet address specified as an -.Ar ether_addr -structure into an -.Tn ASCII -string. -.Pp -The -.Fn ether_ntohost -and -.Fn ether_hostton -functions map ethernet addresses to their corresponding hostnames -as specified in the -.Pa /etc/ethers -database. -.Fn ether_ntohost -converts from ethernet address to hostname, and -.Fn ether_hostton -converts from hostname to ethernet address. -.Sh RETURN VALUES -.Fn ether_line -returns zero on success and non-zero if it was unable to parse -any part of the supplied line -.Ar l . -It returns the extracted ethernet address in the supplied -.Ar ether_addr -structure -.Ar e -and the hostname in the supplied string -.Ar h . -.Pp -On success, -.Fn ether_ntoa -returns a pointer to a string containing an -.Tn ASCII -representation of an ethernet address. -If it is unable to convert -the supplied -.Ar ether_addr -structure, it returns a -.Dv NULL -pointer. -Likewise, -.Fn ether_aton -returns a pointer to an -.Ar ether_addr -structure on success and a -.Dv NULL -pointer on failure. -.Pp -The -.Fn ether_ntohost -and -.Fn ether_hostton -functions both return zero on success or non-zero if they were -unable to find a match in the -.Pa /etc/ethers -database. -.Sh NOTES -The user must insure that the hostname strings passed to the -.Fn ether_line , -.Fn ether_ntohost -and -.Fn ether_hostton -functions are large enough to contain the returned hostnames. -.Sh NIS INTERACTION -If the -.Pa /etc/ethers -contains a line with a single + in it, the -.Fn ether_ntohost -and -.Fn ether_hostton -functions will attempt to consult the NIS -.Pa ethers.byname -and -.Pa ethers.byaddr -maps in addition to the data in the -.Pa /etc/ethers -file. -.Sh SEE ALSO -.Xr yp 4 , -.Xr ethers 5 -.Sh BUGS -.Pp -The -.Fn ether_aton -and -.Fn ether_ntoa -functions returns values that are stored in static memory areas -which may be overwritten the next time they are called. -.Sh HISTORY -This particular implementation of the -.Nm ethers -library functions were written for and first appeared in -.Fx 2.1 . diff --git a/lib/libc/net/getaddrinfo.3 b/lib/libc/net/getaddrinfo.3 deleted file mode 100644 index 754a796..0000000 --- a/lib/libc/net/getaddrinfo.3 +++ /dev/null @@ -1,408 +0,0 @@ -.\" Copyright (c) 1983, 1987, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" From: @(#)gethostbyname.3 8.4 (Berkeley) 5/25/95 -.\" $Id: getaddrinfo.3,v 1.3 1999/10/07 08:22:04 jinmei Exp $ -.\" $FreeBSD$ -.\" -.Dd May 25, 1995 -.Dt GETADDRINFO 3 -.Os KAME -.\" -.Sh NAME -.Nm getaddrinfo -.Nm freeaddrinfo , -.Nm gai_strerror -.Nd nodename-to-address translation in protocol-independent manner -.\" -.Sh SYNOPSIS -.Fd #include <sys/types.h> -.Fd #include <sys/socket.h> -.Fd #include <netdb.h> -.Ft int -.Fn getaddrinfo "const char *nodename" "const char *servname" "const struct addrinfo *hints" "struct addrinfo **res" -.Ft void -.Fn freeaddrinfo "struct addrinfo *ai" -.Ft "char *" -.Fn gai_strerror "int ecode" -.\" -.Sh DESCRIPTION -The -.Fn getaddrinfo -function is defined for protocol-independent nodename-to-address translation. -It performs functionality of -.Xr gethostbyname 3 -and -.Xr getservbyname 3 , -in more sophisticated manner. -.Pp -The addrinfo structure is defined as a result of including the -.Li <netdb.h> -header: -.Bd -literal -offset -struct addrinfo { * - int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */ - int ai_family; /* PF_xxx */ - int ai_socktype; /* SOCK_xxx */ - int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ - size_t ai_addrlen; /* length of ai_addr */ - char *ai_canonname; /* canonical name for nodename */ - struct sockaddr *ai_addr; /* binary address */ - struct addrinfo *ai_next; /* next structure in linked list */ -}; -.Ed -.Pp -The -.Fa nodename -and -.Fa servname -arguments are pointers to null-terminated strings or -.Dv NULL . -One or both of these two arguments must be a -.Pf non Dv -NULL -pointer. -In the normal client scenario, both the -.Fa nodename -and -.Fa servname -are specified. -In the normal server scenario, only the -.Fa servname -is specified. -A -.Pf non Dv -NULL -.Fa nodename -string can be either a node name or a numeric host address string -.Po -i.e., a dotted-decimal IPv4 address or an IPv6 hex address -.Pc . -A -.Pf non Dv -NULL -.Fa servname -string can be either a service name or a decimal port number. -.Pp -The caller can optionally pass an -.Li addrinfo -structure, pointed to by the third argument, -to provide hints concerning the type of socket that the caller supports. -In this -.Fa hints -structure all members other than -.Fa ai_flags , -.Fa ai_family , -.Fa ai_socktype , -and -.Fa ai_protocol -must be zero or a -.Dv NULL -pointer. -A value of -.Dv PF_UNSPEC -for -.Fa ai_family -means the caller will accept any protocol family. -A value of 0 for -.Fa ai_socktype -means the caller will accept any socket type. -A value of 0 for -.Fa ai_protocol -means the caller will accept any protocol. -For example, if the caller handles only TCP and not UDP, then the -.Fa ai_socktype -member of the hints structure should be set to -.Dv SOCK_STREAM -when -.Fn getaddrinfo -is called. -If the caller handles only IPv4 and not IPv6, then the -.Fa ai_family -member of the -.Fa hints -structure should be set to -.Dv PF_INET -when -.Fn getaddrinfo -is called. -If the third argument to -.Fn getaddrinfo -is a -.Dv NULL -pointer, this is the same as if the caller had filled in an -.Li addrinfo -structure initialized to zero with -.Fa ai_family -set to PF_UNSPEC. -.Pp -Upon successful return a pointer to a linked list of one or more -.Li addrinfo -structures is returned through the final argument. -The caller can process each -.Li addrinfo -structure in this list by following the -.Fa ai_next -pointer, until a -.Dv NULL -pointer is encountered. -In each returned -.Li addrinfo -structure the three members -.Fa ai_family , -.Fa ai_socktype , -and -.Fa ai_protocol -are the corresponding arguments for a call to the -.Fn socket -function. -In each -.Li addrinfo -structure the -.Fa ai_addr -member points to a filled-in socket address structure whose length is -specified by the -.Fa ai_addrlen -member. -.Pp -If the -.Dv AI_PASSIVE -bit is set in the -.Fa ai_flags -member of the -.Fa hints -structure, then the caller plans to use the returned socket address -structure in a call to -.Fn bind . -In this case, if the -.Fa nodename -argument is a -.Dv NULL -pointer, then the IP address portion of the socket -address structure will be set to -.Dv INADDR_ANY -for an IPv4 address or -.Dv IN6ADDR_ANY_INIT -for an IPv6 address. -.Pp -If the -.Dv AI_PASSIVE -bit is not set in the -.Fa ai_flags -member of the -.Fa hints -structure, then the returned socket address structure will be ready for a -call to -.Fn connect -.Pq for a connection-oriented protocol -or either -.Fn connect , -.Fn sendto , or -.Fn sendmsg -.Pq for a connectionless protocol . -In this case, if the -.Fa nodename -argument is a -.Dv NULL -pointer, then the IP address portion of the -socket address structure will be set to the loopback address. -.Pp -If the -.Dv AI_CANONNAME -bit is set in the -.Fa ai_flags -member of the -.Fa hints -structure, then upon successful return the -.Fa ai_canonname -member of the first -.Li addrinfo -structure in the linked list will point to a null-terminated string -containing the canonical name of the specified -.Fa nodename . -.Pp -If the -.Dv AI_NUMERICHOST -bit is set in the -.Fa ai_flags -member of the -.Fa hints -structure, then a -.Pf non Dv -NULL -.Fa nodename -string must be a numeric host address string. -Otherwise an error of -.Dv EAI_NONAME -is returned. -This flag prevents any type of name resolution service (e.g., the DNS) -from being called. -.Pp -All of the information returned by -.Fn getaddrinfo -is dynamically allocated: -the -.Li addrinfo -structures, and the socket address structures and canonical node name -strings pointed to by the addrinfo structures. -To return this information to the system the function -.Fn freeaddrinfo -is called. -The -.Fa addrinfo -structure pointed to by the -.Fa ai argument -is freed, along with any dynamic storage pointed to by the structure. -This operation is repeated until a -.Dv NULL -.Fa ai_next -pointer is encountered. -.Pp -To aid applications in printing error messages based on the -.Dv EAI_xxx -codes returned by -.Fn getaddrinfo , -.Fn gai_strerror -is defined. -The argument is one of the -.Dv EAI_xxx -values defined earlier and the return value points to a string describing -the error. -If the argument is not one of the -.Dv EAI_xxx -values, the function still returns a pointer to a string whose contents -indicate an unknown error. -.\" -.Sh EXTENSION -The implementation allows experimental numeric IPv6 address notation with -scope identifier. -By appending atmark and scope identifier to addresses, you can fill -.Li sin6_scope_id -field for addresses. -This would make management of scoped address easier, -and allows cut-and-paste input of scoped address. -.Pp -At this moment the code supports only link-local addresses with the format. -Scope identifier is hardcoded to name of hardware interface associated -with the link. -.Po -such as -.Li ne0 -.Pc . -Example would be like -.Dq Li fe80::1@ne0 , -which means -.Do -.Li fe80::1 -on the link associated with -.Li ne0 -interface -.Dc . -.Pp -The implementation is still very experimental and non-standard. -The current implementation assumes one-by-one relationship between -interface and link, which is not necessarily true from the specification. -.\" -.Sh FILES -.Bl -tag -width /etc/resolv.conf -compact -.It Pa /etc/hosts -.It Pa /etc/host.conf -.It Pa /etc/resolv.conf -.El -.\" -.Sh DIAGNOSTICS -Error return status from -.Fn getaddrinfo -is zero on success and non-zero on errors. -Non-zero error codes are defined in -.Li <netdb.h> , -and as follows: -.Pp -.Bl -tag -width EAI_ADDRFAMILY -compact -.It Dv EAI_ADDRFAMILY -address family for nodename not supported -.It Dv EAI_AGAIN -temporary failure in name resolution -.It Dv EAI_BADFLAGS -invalid value for ai_flags -.It Dv EAI_FAIL -non-recoverable failure in name resolution -.It Dv EAI_FAMILY -ai_family not supported -.It Dv EAI_MEMORY -memory allocation failure -.It Dv EAI_NODATA -no address associated with nodename -.It Dv EAI_NONAME -nodename nor servname provided, or not known -.It Dv EAI_SERVICE -servname not supported for ai_socktype -.It Dv EAI_SOCKTYPE -ai_socktype not supported -.It Dv EAI_SYSTEM -system error returned in errno -.El -.Pp -If called with proper argument, -.Fn gai_strerror -returns a pointer to a string describing the given error code. -If the argument is not one of the -.Dv EAI_xxx -values, the function still returns a pointer to a string whose contents -indicate an unknown error. -.\" -.Sh SEE ALSO -.Xr getnameinfo 3 , -.Xr gethostbyname 3 , -.Xr getservbyname 3 , -.Xr hosts 5 , -.Xr services 5 , -.Xr hostname 7 , -.Xr named 8 . -.Pp -.Rs -.%A R. Gilligan -.%A S. Thomson -.%A J. Bound -.%A W. Stevens -.%T Basic Socket Interface Extensions for IPv6 -.%R RFC2553 -.%D March 1999 -.Re -.\" -.Sh HISTORY -The implementation first appeared in WIDE Hydrangea IPv6 protocol stack kit. -.\" -.Sh STANDARDS -The -.Fn getaddrinfo -function is defined IEEE POSIX 1003.1g draft specification, -and documented in ``Basic Socket Interface Extensions for IPv6'' -.Pq RFC2533 . -.\" -.Sh BUGS -The text was shamelessly copied from RFC2553. diff --git a/lib/libc/net/getaddrinfo.c b/lib/libc/net/getaddrinfo.c deleted file mode 100644 index a1f2726..0000000 --- a/lib/libc/net/getaddrinfo.c +++ /dev/null @@ -1,927 +0,0 @@ -/* - * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -/* - * "#ifdef FAITH" part is local hack for supporting IPv4-v6 translator. - * - * Issues to be discussed: - * - Thread safe-ness must be checked. - * - Return values. There are nonstandard return values defined and used - * in the source code. This is because RFC2553 is silent about which error - * code must be returned for which situation. - * Note: - * - We use getipnodebyname() just for thread-safeness. There's no intent - * to let it do PF_UNSPEC (actually we never pass PF_UNSPEC to - * getipnodebyname(). - * - The code filters out AFs that are not supported by the kernel, - * when globbing NULL hostname (to loopback, or wildcard). Is it the right - * thing to do? What is the relationship with post-RFC2553 AI_ADDRCONFIG - * in ai_flags? - */ - -#include <sys/types.h> -#include <sys/param.h> -#include <sys/socket.h> -#include <net/if.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> -#include <netdb.h> -#include <resolv.h> -#include <string.h> -#include <stdlib.h> -#include <stddef.h> -#include <ctype.h> -#include <unistd.h> -#include <stdio.h> - -#if defined(__KAME__) && defined(INET6) -# define FAITH -#endif - -#define SUCCESS 0 -#define ANY 0 -#define YES 1 -#define NO 0 - -static const char in_addrany[] = { 0, 0, 0, 0 }; -static const char in6_addrany[] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 -}; -static const char in_loopback[] = { 127, 0, 0, 1 }; -static const char in6_loopback[] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 -}; - -static const struct afd { - int a_af; - int a_addrlen; - int a_socklen; - int a_off; - const char *a_addrany; - const char *a_loopback; - int a_scoped; -} afdl [] = { -#ifdef INET6 -#define N_INET6 0 - {PF_INET6, sizeof(struct in6_addr), - sizeof(struct sockaddr_in6), - offsetof(struct sockaddr_in6, sin6_addr), - in6_addrany, in6_loopback, 1}, -#define N_INET 1 -#else -#define N_INET 0 -#endif - {PF_INET, sizeof(struct in_addr), - sizeof(struct sockaddr_in), - offsetof(struct sockaddr_in, sin_addr), - in_addrany, in_loopback, 0}, - {0, 0, 0, 0, NULL, NULL, 0}, -}; - -struct explore { - int e_af; - int e_socktype; - int e_protocol; - const char *e_protostr; - int e_wild; -#define WILD_AF(ex) ((ex)->e_wild & 0x01) -#define WILD_SOCKTYPE(ex) ((ex)->e_wild & 0x02) -#define WILD_PROTOCOL(ex) ((ex)->e_wild & 0x04) -}; - -static const struct explore explore[] = { -#ifdef INET6 - { PF_INET6, SOCK_DGRAM, IPPROTO_UDP, "udp", 0x07 }, - { PF_INET6, SOCK_STREAM, IPPROTO_TCP, "tcp", 0x07 }, - { PF_INET6, SOCK_RAW, ANY, NULL, 0x05 }, -#endif - { PF_INET, SOCK_DGRAM, IPPROTO_UDP, "udp", 0x07 }, - { PF_INET, SOCK_STREAM, IPPROTO_TCP, "tcp", 0x07 }, - { PF_INET, SOCK_RAW, ANY, NULL, 0x05 }, - { -1, 0, 0, NULL, 0 }, -}; - -#ifdef INET6 -#define PTON_MAX 16 -#else -#define PTON_MAX 4 -#endif - - -static int str_isnumber __P((const char *)); -static int explore_fqdn __P((const struct addrinfo *, const char *, - const char *, struct addrinfo **)); -static int explore_null __P((const struct addrinfo *, const char *, - const char *, struct addrinfo **)); -static int explore_numeric __P((const struct addrinfo *, const char *, - const char *, struct addrinfo **)); -static int explore_numeric_scope __P((const struct addrinfo *, const char *, - const char *, struct addrinfo **)); -static int get_canonname __P((const struct addrinfo *, - struct addrinfo *, const char *)); -static struct addrinfo *get_ai __P((const struct addrinfo *, - const struct afd *, const char *)); -static int get_portmatch __P((const struct addrinfo *, const char *)); -static int get_port __P((struct addrinfo *, const char *, int)); -static const struct afd *find_afd __P((int)); - -static char *ai_errlist[] = { - "Success", - "Address family for hostname not supported", /* EAI_ADDRFAMILY */ - "Temporary failure in name resolution", /* EAI_AGAIN */ - "Invalid value for ai_flags", /* EAI_BADFLAGS */ - "Non-recoverable failure in name resolution", /* EAI_FAIL */ - "ai_family not supported", /* EAI_FAMILY */ - "Memory allocation failure", /* EAI_MEMORY */ - "No address associated with hostname", /* EAI_NODATA */ - "hostname nor servname provided, or not known", /* EAI_NONAME */ - "servname not supported for ai_socktype", /* EAI_SERVICE */ - "ai_socktype not supported", /* EAI_SOCKTYPE */ - "System error returned in errno", /* EAI_SYSTEM */ - "Invalid value for hints", /* EAI_BADHINTS */ - "Resolved protocol is unknown", /* EAI_PROTOCOL */ - "Argument res is NULL", /* EAI_RESNULL */ - "Unknown error", /* EAI_MAX */ -}; - -/* XXX macros that make external reference is BAD. */ - -#define GET_AI(ai, afd, addr) \ -do { \ - /* external reference: pai, error, and label free */ \ - (ai) = get_ai(pai, (afd), (addr)); \ - if ((ai) == NULL) { \ - error = EAI_MEMORY; \ - goto free; \ - } \ -} while (0) - -#define GET_PORT(ai, serv) \ -do { \ - /* external reference: error and label free */ \ - error = get_port((ai), (serv), 0); \ - if (error != 0) \ - goto free; \ -} while (0) - -#define GET_CANONNAME(ai, str) \ -do { \ - /* external reference: pai, error and label free */ \ - error = get_canonname(pai, (ai), (str)); \ - if (error != 0) \ - goto free; \ -} while (0) - -#define ERR(err) \ -do { \ - /* external reference: error, and label bad */ \ - error = (err); \ - goto bad; \ -} while (0) - -#define MATCH_FAMILY(x, y, w) \ - ((x) == (y) || ((w) && ((x) == PF_UNSPEC || (y) == PF_UNSPEC))) -#define MATCH(x, y, w) \ - ((x) == (y) || ((w) && ((x) == ANY || (y) == ANY))) - -char * -gai_strerror(ecode) - int ecode; -{ - if (ecode < 0 || ecode > EAI_MAX) - ecode = EAI_MAX; - return ai_errlist[ecode]; -} - -void -freeaddrinfo(ai) - struct addrinfo *ai; -{ - struct addrinfo *next; - - do { - next = ai->ai_next; - if (ai->ai_canonname) - free(ai->ai_canonname); - /* no need to free(ai->ai_addr) */ - free(ai); - } while ((ai = next) != NULL); -} - -static int -str_isnumber(p) - const char *p; -{ - char *q = (char *)p; - while (*q) { - if (! isdigit(*q)) - return NO; - q++; - } - return YES; -} - -int -getaddrinfo(hostname, servname, hints, res) - const char *hostname, *servname; - const struct addrinfo *hints; - struct addrinfo **res; -{ - struct addrinfo sentinel; - struct addrinfo *cur; - int error = 0; - struct addrinfo ai; - struct addrinfo ai0; - struct addrinfo *pai; - const struct afd *afd; - const struct explore *ex; - - sentinel.ai_next = NULL; - cur = &sentinel; - pai = &ai; - pai->ai_flags = 0; - pai->ai_family = PF_UNSPEC; - pai->ai_socktype = ANY; - pai->ai_protocol = ANY; - pai->ai_addrlen = 0; - pai->ai_canonname = NULL; - pai->ai_addr = NULL; - pai->ai_next = NULL; - - if (hostname == NULL && servname == NULL) - return EAI_NONAME; - if (res == NULL) - return EAI_RESNULL; /* xxx */ - if (hints) { - /* error check for hints */ - if (hints->ai_addrlen || hints->ai_canonname || - hints->ai_addr || hints->ai_next) - ERR(EAI_BADHINTS); /* xxx */ - if (hints->ai_flags & ~AI_MASK) - ERR(EAI_BADFLAGS); - switch (hints->ai_family) { - case PF_UNSPEC: - case PF_INET: -#ifdef INET6 - case PF_INET6: -#endif - break; - default: - ERR(EAI_FAMILY); - } - memcpy(pai, hints, sizeof(*pai)); - - /* - * if both socktype/protocol are specified, check if they - * are meaningful combination. - */ - if (pai->ai_socktype != ANY && pai->ai_protocol != ANY) { - int matched = 0; - - for (ex = explore; ex->e_af >= 0; ex++) { - if (pai->ai_family != ex->e_af) - continue; - if (ex->e_socktype == ANY) - continue; - if (ex->e_protocol == ANY) - continue; - if (pai->ai_socktype == ex->e_socktype - && pai->ai_protocol == ex->e_protocol) - matched = 1; - else - continue; - if (matched == 0) - ERR(EAI_BADHINTS); - } - } - } - - /* backup original pai contents */ - ai0 = *pai; - - /* - * special cases check for inet and inet6 sockets. - * (1) servname is disallowed for raw sockets. - * (2) numeric servname is disallowed if socktype/protocol is left - * unspecified. - */ - if (MATCH_FAMILY(pai->ai_family, PF_INET, 1) -#ifdef INET6 - || MATCH_FAMILY(pai->ai_family, PF_INET6, 1) -#endif - ) { - *pai = ai0; - - if (pai->ai_family == PF_UNSPEC) -#ifdef INET6 - pai->ai_family = PF_INET6; -#else - pai->ai_family = PF_INET; -#endif - error = get_portmatch(pai, servname); - if (error) - ERR(error); - } - - /* NULL hostname, or numeric hostname */ - for (ex = explore; ex->e_af >= 0; ex++) { - *pai = ai0; - - if (!MATCH_FAMILY(pai->ai_family, ex->e_af, WILD_AF(ex))) - continue; - if (!MATCH(pai->ai_socktype, ex->e_socktype, WILD_SOCKTYPE(ex))) - continue; - if (!MATCH(pai->ai_protocol, ex->e_protocol, WILD_PROTOCOL(ex))) - continue; - - if (pai->ai_family == PF_UNSPEC) - pai->ai_family = ex->e_af; - if (pai->ai_socktype == ANY && ex->e_socktype != ANY) - pai->ai_socktype = ex->e_socktype; - if (pai->ai_protocol == ANY && ex->e_protocol != ANY) - pai->ai_protocol = ex->e_protocol; - - if (hostname == NULL) - error = explore_null(pai, hostname, servname, &cur->ai_next); - else - error = explore_numeric_scope(pai, hostname, servname, &cur->ai_next); - - if (error) - goto free; - - while (cur && cur->ai_next) - cur = cur->ai_next; - } - - /* - * XXX - * If numreic representation of AF1 can be interpreted as FQDN - * representation of AF2, we need to think again about the code below. - */ - if (sentinel.ai_next) - goto good; - - if (pai->ai_flags & AI_NUMERICHOST) - ERR(EAI_NONAME); - if (hostname == NULL) - ERR(EAI_NONAME); - - /* - * hostname as alphabetical name. - * we would like to prefer AF_INET6 than AF_INET, so we'll make a - * outer loop by AFs. - */ - for (afd = afdl; afd->a_af; afd++) { - *pai = ai0; - - if (!MATCH_FAMILY(pai->ai_family, afd->a_af, 1)) - continue; - - for (ex = explore; ex->e_af >= 0; ex++) { - *pai = ai0; - - if (pai->ai_family == PF_UNSPEC) - pai->ai_family = afd->a_af; - - if (!MATCH_FAMILY(pai->ai_family, ex->e_af, - WILD_AF(ex))) - continue; - if (!MATCH(pai->ai_socktype, ex->e_socktype, - WILD_SOCKTYPE(ex))) { - continue; - } - if (!MATCH(pai->ai_protocol, ex->e_protocol, - WILD_PROTOCOL(ex))) { - continue; - } - - if (pai->ai_family == PF_UNSPEC) - pai->ai_family = ex->e_af; - if (pai->ai_socktype == ANY && ex->e_socktype != ANY) - pai->ai_socktype = ex->e_socktype; - if (pai->ai_protocol == ANY && ex->e_protocol != ANY) - pai->ai_protocol = ex->e_protocol; - - error = explore_fqdn(pai, hostname, servname, - &cur->ai_next); - - while (cur && cur->ai_next) - cur = cur->ai_next; - } - } - - /* XXX: if any addrinfo found, SUCCESS return even if (error != 0) */ - if (sentinel.ai_next) { - good: - *res = sentinel.ai_next; - return SUCCESS; - } - /* else, failed */ - free: - bad: - if (error == 0) - error = EAI_FAIL; - if (sentinel.ai_next) - freeaddrinfo(sentinel.ai_next); - *res = NULL; - return error; -} - -/* - * FQDN hostname, DNS lookup - */ -static int -explore_fqdn(pai, hostname, servname, res) - const struct addrinfo *pai; - const char *hostname; - const char *servname; - struct addrinfo **res; -{ - struct hostent *hp; - int h_error; - int af; - char *ap; - struct addrinfo sentinel, *cur; - int i; - const struct afd *afd; - int error; - - *res = NULL; - sentinel.ai_next = NULL; - cur = &sentinel; - - /* - * if the servname does not match socktype/protocol, ignore it. - */ - if (get_portmatch(pai, servname) != 0) - return 0; - - afd = find_afd(pai->ai_family); - if (afd == NULL) - return 0; - - hp = getipnodebyname(hostname, pai->ai_family, AI_ADDRCONFIG, - &h_error); - if (hp == NULL) { - switch (h_error) { - case HOST_NOT_FOUND: - case NO_DATA: - error = EAI_NODATA; - break; - case TRY_AGAIN: - error = EAI_AGAIN; - break; - case NO_RECOVERY: - case NETDB_INTERNAL: - default: - error = EAI_FAIL; - break; - } - } else if ((hp->h_name == NULL) || (hp->h_name[0] == 0) - || (hp->h_addr_list[0] == NULL)) { - freehostent(hp); - hp = NULL; - error = EAI_FAIL; - } - - if (hp == NULL) - goto free; - - for (i = 0; hp->h_addr_list[i] != NULL; i++) { - af = hp->h_addrtype; - ap = hp->h_addr_list[i]; - - if (af != pai->ai_family) - continue; - - GET_AI(cur->ai_next, afd, ap); - GET_PORT(cur->ai_next, servname); - if ((pai->ai_flags & AI_CANONNAME) != 0) { - /* - * RFC2553 says that ai_canonname will be set only for - * the first element. we do it for all the elements, - * just for convenience. - */ - GET_CANONNAME(cur->ai_next, hp->h_name); - } - - while (cur && cur->ai_next) - cur = cur->ai_next; - } - - *res = sentinel.ai_next; - return 0; - -free: - if (hp) - freehostent(hp); - if (sentinel.ai_next) - freeaddrinfo(sentinel.ai_next); - return error; -} - -/* - * hostname == NULL. - * passive socket -> anyaddr (0.0.0.0 or ::) - * non-passive socket -> localhost (127.0.0.1 or ::1) - */ -static int -explore_null(pai, hostname, servname, res) - const struct addrinfo *pai; - const char *hostname; - const char *servname; - struct addrinfo **res; -{ - int s; - const struct afd *afd; - struct addrinfo *cur; - struct addrinfo sentinel; - int error; - - *res = NULL; - sentinel.ai_next = NULL; - cur = &sentinel; - - /* - * filter out AFs that are not supported by the kernel - * XXX errno? - */ - s = socket(pai->ai_family, SOCK_DGRAM, 0); - if (s < 0) - return 0; - _close(s); - afd = find_afd(pai->ai_family); - if (afd == NULL) - return 0; - - GET_AI(cur->ai_next, afd, - (pai->ai_flags & AI_PASSIVE) ? afd->a_addrany : afd->a_loopback - ); - /* xxx meaningless? - * GET_CANONNAME(cur->ai_next, "anyaddr"); - * or - * GET_CANONNAME(cur->ai_next, "localhost"); - */ - /* if the servname does not match socktype/protocol, ignored */ - GET_PORT(cur->ai_next, servname); - - *res = sentinel.ai_next; - return 0; - -free: - if (sentinel.ai_next) - freeaddrinfo(sentinel.ai_next); - return error; -} - -/* - * numeric hostname - */ -static int -explore_numeric(pai, hostname, servname, res) - const struct addrinfo *pai; - const char *hostname; - const char *servname; - struct addrinfo **res; -{ - const struct afd *afd; - struct addrinfo *cur; - struct addrinfo sentinel; - int error; - char pton[PTON_MAX]; - int flags; - - *res = NULL; - sentinel.ai_next = NULL; - cur = &sentinel; - - /* - * if the servname does not match socktype/protocol, ignore it. - */ - if (get_portmatch(pai, servname) != 0) - return 0; - - afd = find_afd(pai->ai_family); - if (afd == NULL) - return 0; - flags = pai->ai_flags; - - if ((afd->a_af == AF_INET - ? inet_aton(hostname, (struct in_addr *)pton) - : inet_pton(afd->a_af, hostname, pton)) == 1) { - if (pai->ai_family == afd->a_af || - pai->ai_family == PF_UNSPEC /*?*/) { - GET_AI(cur->ai_next, afd, pton); - GET_PORT(cur->ai_next, servname); - while (cur && cur->ai_next) - cur = cur->ai_next; - } else - ERR(EAI_FAMILY); /*xxx*/ - } - - *res = sentinel.ai_next; - return 0; - -free: -bad: - if (sentinel.ai_next) - freeaddrinfo(sentinel.ai_next); - return error; -} - -/* - * numeric hostname with scope - */ -static int -explore_numeric_scope(pai, hostname, servname, res) - const struct addrinfo *pai; - const char *hostname; - const char *servname; - struct addrinfo **res; -{ -#ifndef SCOPE_DELIMITER - return explore_numeric(pai, hostname, servname, res); -#else - const struct afd *afd; - struct addrinfo *cur; - int error; - char *cp, *hostname2 = NULL; - int scope; -#ifdef INET6 - struct sockaddr_in6 *sin6; -#endif - - /* - * if the servname does not match socktype/protocol, ignore it. - */ - if (get_portmatch(pai, servname) != 0) - return 0; - - afd = find_afd(pai->ai_family); - if (afd == NULL) - return 0; - if (!afd->a_scoped) - return explore_numeric(pai, hostname, servname, res); - - cp = strchr(hostname, SCOPE_DELIMITER); - if (cp == NULL) - return explore_numeric(pai, hostname, servname, res); - - /* - * Handle special case of <scoped_address><delimiter><scope id> - */ - hostname2 = strdup(hostname); - if (hostname2 == NULL) - return EAI_MEMORY; - /* terminate at the delimiter */ - hostname2[cp - hostname] = '\0'; - - cp++; - switch (pai->ai_family) { -#ifdef INET6 - case AF_INET6: - scope = if_nametoindex(cp); - if (scope == 0) { - error = EAI_SYSTEM; - goto free; - } - break; -#endif - } - - error = explore_numeric(pai, hostname2, servname, res); - if (error == 0) { - for (cur = *res; cur; cur = cur->ai_next) { -#ifdef INET6 - if (cur->ai_family != AF_INET6) - continue; - sin6 = (struct sockaddr_in6 *)cur->ai_addr; - if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr) || - IN6_IS_ADDR_MC_LINKLOCAL(&sin6->sin6_addr)) - sin6->sin6_scope_id = scope; -#endif - } - } - -#ifdef INET6 -free: -#endif - free(hostname2); - - return error; -#endif -} - -static int -get_canonname(pai, ai, str) - const struct addrinfo *pai; - struct addrinfo *ai; - const char *str; -{ - if ((pai->ai_flags & AI_CANONNAME) != 0) { - ai->ai_canonname = (char *)malloc(strlen(str) + 1); - if (ai->ai_canonname == NULL) - return EAI_MEMORY; - strcpy(ai->ai_canonname, str); - } - return 0; -} - -static struct addrinfo * -get_ai(pai, afd, addr) - const struct addrinfo *pai; - const struct afd *afd; - const char *addr; -{ - char *p; - struct addrinfo *ai; -#ifdef FAITH - struct in6_addr faith_prefix; - char *fp_str; - int translate = 0; -#endif - -#ifdef FAITH - /* - * Transfrom an IPv4 addr into a special IPv6 addr format for - * IPv6->IPv4 translation gateway. (only TCP is supported now) - * - * +-----------------------------------+------------+ - * | faith prefix part (12 bytes) | embedded | - * | | IPv4 addr part (4 bytes) - * +-----------------------------------+------------+ - * - * faith prefix part is specified as ascii IPv6 addr format - * in environmental variable GAI. - * For FAITH to work correctly, routing to faith prefix must be - * setup toward a machine where a FAITH daemon operates. - * Also, the machine must enable some mechanizm - * (e.g. faith interface hack) to divert those packet with - * faith prefixed destination addr to user-land FAITH daemon. - */ - fp_str = getenv("GAI"); - if (fp_str && inet_pton(AF_INET6, fp_str, &faith_prefix) == 1 && - afd->a_af == AF_INET && pai->ai_socktype == SOCK_STREAM) { - u_int32_t v4a; - u_int8_t v4a_top; - - memcpy(&v4a, addr, sizeof v4a); - v4a_top = v4a >> IN_CLASSA_NSHIFT; - if (!IN_MULTICAST(v4a) && !IN_EXPERIMENTAL(v4a) && - v4a_top != 0 && v4a != IN_LOOPBACKNET) { - afd = &afdl[N_INET6]; - memcpy(&faith_prefix.s6_addr[12], addr, - sizeof(struct in_addr)); - translate = 1; - } - } -#endif - - ai = (struct addrinfo *)malloc(sizeof(struct addrinfo) - + (afd->a_socklen)); - if (ai == NULL) - return NULL; - - memcpy(ai, pai, sizeof(struct addrinfo)); - ai->ai_addr = (struct sockaddr *)(ai + 1); - memset(ai->ai_addr, 0, afd->a_socklen); - ai->ai_addr->sa_len = afd->a_socklen; - ai->ai_addrlen = afd->a_socklen; - ai->ai_addr->sa_family = ai->ai_family = afd->a_af; - p = (char *)(ai->ai_addr); -#ifdef FAITH - if (translate == 1) - memcpy(p + afd->a_off, &faith_prefix, afd->a_addrlen); - else -#endif - memcpy(p + afd->a_off, addr, afd->a_addrlen); - - return ai; -} - -static int -get_portmatch(ai, servname) - const struct addrinfo *ai; - const char *servname; -{ - /* get_port does not touch first argument. when matchonly == 1. */ - return get_port((struct addrinfo *)ai, servname, 1); -} - -static int -get_port(ai, servname, matchonly) - struct addrinfo *ai; - const char *servname; - int matchonly; -{ - const char *proto; - struct servent *sp; - int port; - int allownumeric; - - if (servname == NULL) - return 0; - if (ai->ai_family != AF_INET -#ifdef INET6 - && ai->ai_family != AF_INET6 -#endif - ) - return 0; - - switch (ai->ai_socktype) { - case SOCK_RAW: - return EAI_SERVICE; - case SOCK_DGRAM: - case SOCK_STREAM: - allownumeric = 1; - break; - case ANY: - allownumeric = 0; - break; - default: - return EAI_SOCKTYPE; - } - - if (str_isnumber(servname)) { - if (!allownumeric) - return EAI_SERVICE; - port = htons(atoi(servname)); - if (port < 0 || port > 65535) - return EAI_SERVICE; - } else { - switch (ai->ai_socktype) { - case SOCK_DGRAM: - proto = "udp"; - break; - case SOCK_STREAM: - proto = "tcp"; - break; - default: - proto = NULL; - break; - } - - if ((sp = getservbyname(servname, proto)) == NULL) - return EAI_SERVICE; - port = sp->s_port; - } - - if (!matchonly) { - switch (ai->ai_family) { - case AF_INET: - ((struct sockaddr_in *)ai->ai_addr)->sin_port = port; - break; -#ifdef INET6 - case AF_INET6: - ((struct sockaddr_in6 *)ai->ai_addr)->sin6_port = port; - break; -#endif - } - } - - return 0; -} - -static const struct afd * -find_afd(af) - int af; -{ - const struct afd *afd; - - if (af == PF_UNSPEC) - return NULL; - for (afd = afdl; afd->a_af; afd++) { - if (afd->a_af == af) - return afd; - } - return NULL; -} diff --git a/lib/libc/net/gethostbydns.c b/lib/libc/net/gethostbydns.c deleted file mode 100644 index a5a3e7b..0000000 --- a/lib/libc/net/gethostbydns.c +++ /dev/null @@ -1,778 +0,0 @@ -/* - * ++Copyright++ 1985, 1988, 1993 - * - - * Copyright (c) 1985, 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - - * Portions Copyright (c) 1993 by Digital Equipment Corporation. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies, and that - * the name of Digital Equipment Corporation not be used in advertising or - * publicity pertaining to distribution of the document or software without - * specific, written prior permission. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT - * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - * - - * --Copyright-- - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)gethostnamadr.c 8.1 (Berkeley) 6/4/93"; -static char fromrcsid[] = "From: Id: gethnamaddr.c,v 8.23 1998/04/07 04:59:46 vixie Exp $"; -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/param.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> - -#include <stdio.h> -#include <unistd.h> -#include <string.h> -#include <netdb.h> -#include <resolv.h> -#include <ctype.h> -#include <errno.h> -#include <syslog.h> - -#include "res_config.h" - -#define SPRINTF(x) ((size_t)sprintf x) - -#define MAXALIASES 35 -#define MAXADDRS 35 - -static const char AskedForGot[] = - "gethostby*.gethostanswer: asked for \"%s\", got \"%s\""; - -static char *h_addr_ptrs[MAXADDRS + 1]; - -static struct hostent host; -static char *host_aliases[MAXALIASES]; -static char hostbuf[8*1024]; -static u_char host_addr[16]; /* IPv4 or IPv6 */ - -#ifdef RESOLVSORT -static void addrsort __P((char **, int)); -#endif - -#if PACKETSZ > 1024 -#define MAXPACKET PACKETSZ -#else -#define MAXPACKET 1024 -#endif - -typedef union { - HEADER hdr; - u_char buf[MAXPACKET]; -} querybuf; - -typedef union { - int32_t al; - char ac; -} align; - -extern int h_errno; -int _dns_ttl_; - -#ifdef DEBUG -static void -dprintf(msg, num) - char *msg; - int num; -{ - if (_res.options & RES_DEBUG) { - int save = errno; - - printf(msg, num); - errno = save; - } -} -#else -# define dprintf(msg, num) /*nada*/ -#endif - -#define BOUNDED_INCR(x) \ - do { \ - cp += x; \ - if (cp > eom) { \ - h_errno = NO_RECOVERY; \ - return (NULL); \ - } \ - } while (0) - -#define BOUNDS_CHECK(ptr, count) \ - do { \ - if ((ptr) + (count) > eom) { \ - h_errno = NO_RECOVERY; \ - return (NULL); \ - } \ - } while (0) - -static struct hostent * -gethostanswer(answer, anslen, qname, qtype) - const querybuf *answer; - int anslen; - const char *qname; - int qtype; -{ - register const HEADER *hp; - register const u_char *cp; - register int n; - const u_char *eom, *erdata; - char *bp, **ap, **hap; - int type, class, buflen, ancount, qdcount; - int haveanswer, had_error; - int toobig = 0; - char tbuf[MAXDNAME]; - const char *tname; - int (*name_ok) __P((const char *)); - - tname = qname; - host.h_name = NULL; - eom = answer->buf + anslen; - switch (qtype) { - case T_A: - case T_AAAA: - name_ok = res_hnok; - break; - case T_PTR: - name_ok = res_dnok; - break; - default: - h_errno = NO_RECOVERY; - return (NULL); /* XXX should be abort(); */ - } - /* - * find first satisfactory answer - */ - hp = &answer->hdr; - ancount = ntohs(hp->ancount); - qdcount = ntohs(hp->qdcount); - bp = hostbuf; - buflen = sizeof hostbuf; - cp = answer->buf; - BOUNDED_INCR(HFIXEDSZ); - if (qdcount != 1) { - h_errno = NO_RECOVERY; - return (NULL); - } - n = dn_expand(answer->buf, eom, cp, bp, buflen); - if ((n < 0) || !(*name_ok)(bp)) { - h_errno = NO_RECOVERY; - return (NULL); - } - BOUNDED_INCR(n + QFIXEDSZ); - if (qtype == T_A || qtype == T_AAAA) { - /* res_send() has already verified that the query name is the - * same as the one we sent; this just gets the expanded name - * (i.e., with the succeeding search-domain tacked on). - */ - n = strlen(bp) + 1; /* for the \0 */ - if (n >= MAXHOSTNAMELEN) { - h_errno = NO_RECOVERY; - return (NULL); - } - host.h_name = bp; - bp += n; - buflen -= n; - /* The qname can be abbreviated, but h_name is now absolute. */ - qname = host.h_name; - } - ap = host_aliases; - *ap = NULL; - host.h_aliases = host_aliases; - hap = h_addr_ptrs; - *hap = NULL; - host.h_addr_list = h_addr_ptrs; - haveanswer = 0; - had_error = 0; - _dns_ttl_ = -1; - while (ancount-- > 0 && cp < eom && !had_error) { - n = dn_expand(answer->buf, eom, cp, bp, buflen); - if ((n < 0) || !(*name_ok)(bp)) { - had_error++; - continue; - } - cp += n; /* name */ - BOUNDS_CHECK(cp, 3 * INT16SZ + INT32SZ); - type = _getshort(cp); - cp += INT16SZ; /* type */ - class = _getshort(cp); - cp += INT16SZ; /* class */ - if (qtype == T_A && type == T_A) - _dns_ttl_ = _getlong(cp); - cp += INT32SZ; /* TTL */ - n = _getshort(cp); - cp += INT16SZ; /* len */ - BOUNDS_CHECK(cp, n); - erdata = cp + n; - if (class != C_IN) { - /* XXX - debug? syslog? */ - cp += n; - continue; /* XXX - had_error++ ? */ - } - if ((qtype == T_A || qtype == T_AAAA) && type == T_CNAME) { - if (ap >= &host_aliases[MAXALIASES-1]) - continue; - n = dn_expand(answer->buf, eom, cp, tbuf, sizeof tbuf); - if ((n < 0) || !(*name_ok)(tbuf)) { - had_error++; - continue; - } - cp += n; - if (cp != erdata) { - h_errno = NO_RECOVERY; - return (NULL); - } - /* Store alias. */ - *ap++ = bp; - n = strlen(bp) + 1; /* for the \0 */ - if (n >= MAXHOSTNAMELEN) { - had_error++; - continue; - } - bp += n; - buflen -= n; - /* Get canonical name. */ - n = strlen(tbuf) + 1; /* for the \0 */ - if (n > buflen || n >= MAXHOSTNAMELEN) { - had_error++; - continue; - } - strcpy(bp, tbuf); - host.h_name = bp; - bp += n; - buflen -= n; - continue; - } - if (qtype == T_PTR && type == T_CNAME) { - n = dn_expand(answer->buf, eom, cp, tbuf, sizeof tbuf); - if (n < 0 || !res_dnok(tbuf)) { - had_error++; - continue; - } - cp += n; - if (cp != erdata) { - h_errno = NO_RECOVERY; - return (NULL); - } - /* Get canonical name. */ - n = strlen(tbuf) + 1; /* for the \0 */ - if (n > buflen || n >= MAXHOSTNAMELEN) { - had_error++; - continue; - } - strcpy(bp, tbuf); - tname = bp; - bp += n; - buflen -= n; - continue; - } - if (type != qtype) { - if (type != T_SIG) - syslog(LOG_NOTICE|LOG_AUTH, - "gethostby*.gethostanswer: asked for \"%s %s %s\", got type \"%s\"", - qname, p_class(C_IN), p_type(qtype), - p_type(type)); - cp += n; - continue; /* XXX - had_error++ ? */ - } - switch (type) { - case T_PTR: - if (strcasecmp(tname, bp) != 0) { - syslog(LOG_NOTICE|LOG_AUTH, - AskedForGot, qname, bp); - cp += n; - continue; /* XXX - had_error++ ? */ - } - n = dn_expand(answer->buf, eom, cp, bp, buflen); - if ((n < 0) || !res_hnok(bp)) { - had_error++; - break; - } -#if MULTI_PTRS_ARE_ALIASES - cp += n; - if (cp != erdata) { - h_errno = NO_RECOVERY; - return (NULL); - } - if (!haveanswer) - host.h_name = bp; - else if (ap < &host_aliases[MAXALIASES-1]) - *ap++ = bp; - else - n = -1; - if (n != -1) { - n = strlen(bp) + 1; /* for the \0 */ - if (n >= MAXHOSTNAMELEN) { - had_error++; - break; - } - bp += n; - buflen -= n; - } - break; -#else - host.h_name = bp; - if (_res.options & RES_USE_INET6) { - n = strlen(bp) + 1; /* for the \0 */ - if (n >= MAXHOSTNAMELEN) { - had_error++; - break; - } - bp += n; - buflen -= n; - _map_v4v6_hostent(&host, &bp, &buflen); - } - h_errno = NETDB_SUCCESS; - return (&host); -#endif - case T_A: - case T_AAAA: - if (strcasecmp(host.h_name, bp) != 0) { - syslog(LOG_NOTICE|LOG_AUTH, - AskedForGot, host.h_name, bp); - cp += n; - continue; /* XXX - had_error++ ? */ - } - if (n != host.h_length) { - cp += n; - continue; - } - if (!haveanswer) { - register int nn; - - host.h_name = bp; - nn = strlen(bp) + 1; /* for the \0 */ - bp += nn; - buflen -= nn; - } - - bp += sizeof(align) - ((u_long)bp % sizeof(align)); - - if (bp + n >= &hostbuf[sizeof hostbuf]) { - dprintf("size (%d) too big\n", n); - had_error++; - continue; - } - if (hap >= &h_addr_ptrs[MAXADDRS-1]) { - if (!toobig++) - dprintf("Too many addresses (%d)\n", - MAXADDRS); - cp += n; - continue; - } - bcopy(cp, *hap++ = bp, n); - bp += n; - buflen -= n; - cp += n; - if (cp != erdata) { - h_errno = NO_RECOVERY; - return (NULL); - } - break; - default: - dprintf("Impossible condition (type=%d)\n", type); - h_errno = NO_RECOVERY; - return (NULL); - /* BIND has abort() here, too risky on bad data */ - } - if (!had_error) - haveanswer++; - } - if (haveanswer) { - *ap = NULL; - *hap = NULL; -# if defined(RESOLVSORT) - /* - * Note: we sort even if host can take only one address - * in its return structures - should give it the "best" - * address in that case, not some random one - */ - if (_res.nsort && haveanswer > 1 && qtype == T_A) - addrsort(h_addr_ptrs, haveanswer); -# endif /*RESOLVSORT*/ - if (!host.h_name) { - n = strlen(qname) + 1; /* for the \0 */ - if (n > buflen || n >= MAXHOSTNAMELEN) - goto no_recovery; - strcpy(bp, qname); - host.h_name = bp; - bp += n; - buflen -= n; - } - if (_res.options & RES_USE_INET6) - _map_v4v6_hostent(&host, &bp, &buflen); - h_errno = NETDB_SUCCESS; - return (&host); - } - no_recovery: - h_errno = NO_RECOVERY; - return (NULL); -} - -struct hostent * -__dns_getanswer(answer, anslen, qname, qtype) - const char *answer; - int anslen; - const char *qname; - int qtype; -{ - switch(qtype) { - case T_AAAA: - host.h_addrtype = AF_INET6; - host.h_length = IN6ADDRSZ; - break; - case T_A: - default: - host.h_addrtype = AF_INET; - host.h_length = INADDRSZ; - break; - } - - return(gethostanswer((const querybuf *)answer, anslen, qname, qtype)); -} - -struct hostent * -_gethostbydnsname(name, af) - const char *name; - int af; -{ - querybuf buf; - register const char *cp; - char *bp; - int n, size, type, len; - - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - h_errno = NETDB_INTERNAL; - return (NULL); - } - - switch (af) { - case AF_INET: - size = INADDRSZ; - type = T_A; - break; - case AF_INET6: - size = IN6ADDRSZ; - type = T_AAAA; - break; - default: - h_errno = NETDB_INTERNAL; - errno = EAFNOSUPPORT; - return (NULL); - } - - host.h_addrtype = af; - host.h_length = size; - - /* - * if there aren't any dots, it could be a user-level alias. - * this is also done in res_query() since we are not the only - * function that looks up host names. - */ - if (!strchr(name, '.') && (cp = __hostalias(name))) - name = cp; - - /* - * disallow names consisting only of digits/dots, unless - * they end in a dot. - */ - if (isdigit((unsigned char)name[0])) - for (cp = name;; ++cp) { - if (!*cp) { - if (*--cp == '.') - break; - /* - * All-numeric, no dot at the end. - * Fake up a hostent as if we'd actually - * done a lookup. - */ - if (inet_pton(af, name, host_addr) <= 0) { - h_errno = HOST_NOT_FOUND; - return (NULL); - } - strncpy(hostbuf, name, MAXDNAME); - hostbuf[MAXDNAME] = '\0'; - bp = hostbuf + MAXDNAME; - len = sizeof hostbuf - MAXDNAME; - host.h_name = hostbuf; - host.h_aliases = host_aliases; - host_aliases[0] = NULL; - h_addr_ptrs[0] = (char *)host_addr; - h_addr_ptrs[1] = NULL; - host.h_addr_list = h_addr_ptrs; - if (_res.options & RES_USE_INET6) - _map_v4v6_hostent(&host, &bp, &len); - h_errno = NETDB_SUCCESS; - return (&host); - } - if (!isdigit((unsigned char)*cp) && *cp != '.') - break; - } - if ((isxdigit((unsigned char)name[0]) && strchr(name, ':') != NULL) || - name[0] == ':') - for (cp = name;; ++cp) { - if (!*cp) { - if (*--cp == '.') - break; - /* - * All-IPv6-legal, no dot at the end. - * Fake up a hostent as if we'd actually - * done a lookup. - */ - if (inet_pton(af, name, host_addr) <= 0) { - h_errno = HOST_NOT_FOUND; - return (NULL); - } - strncpy(hostbuf, name, MAXDNAME); - hostbuf[MAXDNAME] = '\0'; - bp = hostbuf + MAXDNAME; - len = sizeof hostbuf - MAXDNAME; - host.h_name = hostbuf; - host.h_aliases = host_aliases; - host_aliases[0] = NULL; - h_addr_ptrs[0] = (char *)host_addr; - h_addr_ptrs[1] = NULL; - host.h_addr_list = h_addr_ptrs; - h_errno = NETDB_SUCCESS; - return (&host); - } - if (!isxdigit((unsigned char)*cp) && *cp != ':' && *cp != '.') - break; - } - - if ((n = res_search(name, C_IN, type, buf.buf, sizeof(buf))) < 0) { - dprintf("res_search failed (%d)\n", n); - return (NULL); - } - return (gethostanswer(&buf, n, name, type)); -} - -struct hostent * -_gethostbydnsaddr(addr, len, af) - const char *addr; /* XXX should have been def'd as u_char! */ - int len, af; -{ - const u_char *uaddr = (const u_char *)addr; - static const u_char mapped[] = { 0,0, 0,0, 0,0, 0,0, 0,0, 0xff,0xff }; - static const u_char tunnelled[] = { 0,0, 0,0, 0,0, 0,0, 0,0, 0,0 }; - int n, size; - querybuf buf; - register struct hostent *hp; - char qbuf[MAXDNAME+1], *qp; -#ifdef SUNSECURITY - register struct hostent *rhp; - char **haddr; - u_long old_options; - char hname2[MAXDNAME+1]; -#endif /*SUNSECURITY*/ - - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - h_errno = NETDB_INTERNAL; - return (NULL); - } - if (af == AF_INET6 && len == IN6ADDRSZ && - (!bcmp(uaddr, mapped, sizeof mapped) || - !bcmp(uaddr, tunnelled, sizeof tunnelled))) { - /* Unmap. */ - addr += sizeof mapped; - uaddr += sizeof mapped; - af = AF_INET; - len = INADDRSZ; - } - switch (af) { - case AF_INET: - size = INADDRSZ; - break; - case AF_INET6: - size = IN6ADDRSZ; - break; - default: - errno = EAFNOSUPPORT; - h_errno = NETDB_INTERNAL; - return (NULL); - } - if (size != len) { - errno = EINVAL; - h_errno = NETDB_INTERNAL; - return (NULL); - } - switch (af) { - case AF_INET: - (void) sprintf(qbuf, "%u.%u.%u.%u.in-addr.arpa", - (uaddr[3] & 0xff), - (uaddr[2] & 0xff), - (uaddr[1] & 0xff), - (uaddr[0] & 0xff)); - break; - case AF_INET6: - qp = qbuf; - for (n = IN6ADDRSZ - 1; n >= 0; n--) { - qp += SPRINTF((qp, "%x.%x.", - uaddr[n] & 0xf, - (uaddr[n] >> 4) & 0xf)); - } - strcpy(qp, "ip6.int"); - break; - default: - abort(); - } - n = res_query(qbuf, C_IN, T_PTR, (u_char *)buf.buf, sizeof buf.buf); - if (n < 0) { - dprintf("res_query failed (%d)\n", n); - return (NULL); - } - if (n > sizeof buf.buf) { - dprintf("static buffer is too small (%d)\n", n); - return (NULL); - } - if (!(hp = gethostanswer(&buf, n, qbuf, T_PTR))) - return (NULL); /* h_errno was set by gethostanswer() */ -#ifdef SUNSECURITY - if (af == AF_INET) { - /* - * turn off search as the name should be absolute, - * 'localhost' should be matched by defnames - */ - strncpy(hname2, hp->h_name, MAXDNAME); - hname2[MAXDNAME] = '\0'; - old_options = _res.options; - _res.options &= ~RES_DNSRCH; - _res.options |= RES_DEFNAMES; - if (!(rhp = gethostbyname(hname2))) { - syslog(LOG_NOTICE|LOG_AUTH, - "gethostbyaddr: No A record for %s (verifying [%s])", - hname2, inet_ntoa(*((struct in_addr *)addr))); - _res.options = old_options; - h_errno = HOST_NOT_FOUND; - return (NULL); - } - _res.options = old_options; - for (haddr = rhp->h_addr_list; *haddr; haddr++) - if (!memcmp(*haddr, addr, INADDRSZ)) - break; - if (!*haddr) { - syslog(LOG_NOTICE|LOG_AUTH, - "gethostbyaddr: A record of %s != PTR record [%s]", - hname2, inet_ntoa(*((struct in_addr *)addr))); - h_errno = HOST_NOT_FOUND; - return (NULL); - } - } -#endif /*SUNSECURITY*/ - hp->h_addrtype = af; - hp->h_length = len; - bcopy(addr, host_addr, len); - h_addr_ptrs[0] = (char *)host_addr; - h_addr_ptrs[1] = NULL; - if (af == AF_INET && (_res.options & RES_USE_INET6)) { - _map_v4v6_address((char*)host_addr, (char*)host_addr); - hp->h_addrtype = AF_INET6; - hp->h_length = IN6ADDRSZ; - } - h_errno = NETDB_SUCCESS; - return (hp); -} - -#ifdef RESOLVSORT -static void -addrsort(ap, num) - char **ap; - int num; -{ - int i, j; - char **p; - short aval[MAXADDRS]; - int needsort = 0; - - p = ap; - for (i = 0; i < num; i++, p++) { - for (j = 0 ; (unsigned)j < _res.nsort; j++) - if (_res.sort_list[j].addr.s_addr == - (((struct in_addr *)(*p))->s_addr & _res.sort_list[j].mask)) - break; - aval[i] = j; - if (needsort == 0 && i > 0 && j < aval[i-1]) - needsort = i; - } - if (!needsort) - return; - - while (needsort < num) { - for (j = needsort - 1; j >= 0; j--) { - if (aval[j] > aval[j+1]) { - char *hp; - - i = aval[j]; - aval[j] = aval[j+1]; - aval[j+1] = i; - - hp = ap[j]; - ap[j] = ap[j+1]; - ap[j+1] = hp; - - } else - break; - } - needsort++; - } -} -#endif -void -_sethostdnsent(stayopen) - int stayopen; -{ - if ((_res.options & RES_INIT) == 0 && res_init() == -1) - return; - if (stayopen) - _res.options |= RES_STAYOPEN | RES_USEVC; -} - -void -_endhostdnsent() -{ - _res.options &= ~(RES_STAYOPEN | RES_USEVC); - res_close(); -} diff --git a/lib/libc/net/gethostbyht.c b/lib/libc/net/gethostbyht.c deleted file mode 100644 index cd5f0f4..0000000 --- a/lib/libc/net/gethostbyht.c +++ /dev/null @@ -1,202 +0,0 @@ -/*- - * Copyright (c) 1985, 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - - * Portions Copyright (c) 1993 by Digital Equipment Corporation. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies, and that - * the name of Digital Equipment Corporation not be used in advertising or - * publicity pertaining to distribution of the document or software without - * specific, written prior permission. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT - * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - * - - * --Copyright-- - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)gethostnamadr.c 8.1 (Berkeley) 6/4/93"; -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <netdb.h> -#include <stdio.h> -#include <ctype.h> -#include <errno.h> -#include <string.h> -#include <arpa/nameser.h> /* XXX */ -#include <resolv.h> /* XXX */ - -#define MAXALIASES 35 - -static struct hostent host; -static char *host_aliases[MAXALIASES]; -static char hostbuf[BUFSIZ+1]; -static FILE *hostf = NULL; -static u_int32_t host_addr[4]; /* IPv4 or IPv6 */ -static char *h_addr_ptrs[2]; -static int stayopen = 0; - -void -_sethosthtent(f) - int f; -{ - if (!hostf) - hostf = fopen(_PATH_HOSTS, "r" ); - else - rewind(hostf); - stayopen = f; -} - -void -_endhosthtent() -{ - if (hostf && !stayopen) { - (void) fclose(hostf); - hostf = NULL; - } -} - -struct hostent * -gethostent() -{ - char *p; - register char *cp, **q; - int af, len; - - if (!hostf && !(hostf = fopen(_PATH_HOSTS, "r" ))) { - h_errno = NETDB_INTERNAL; - return (NULL); - } - again: - if (!(p = fgets(hostbuf, sizeof hostbuf, hostf))) { - h_errno = HOST_NOT_FOUND; - return (NULL); - } - if (*p == '#') - goto again; - if (!(cp = strpbrk(p, "#\n"))) - goto again; - *cp = '\0'; - if (!(cp = strpbrk(p, " \t"))) - goto again; - *cp++ = '\0'; - if (inet_pton(AF_INET6, p, host_addr) > 0) { - af = AF_INET6; - len = IN6ADDRSZ; - } else if (inet_pton(AF_INET, p, host_addr) > 0) { - if (_res.options & RES_USE_INET6) { - _map_v4v6_address((char*)host_addr, (char*)host_addr); - af = AF_INET6; - len = IN6ADDRSZ; - } else { - af = AF_INET; - len = INADDRSZ; - } - } else { - goto again; - } - h_addr_ptrs[0] = (char *)host_addr; - h_addr_ptrs[1] = NULL; - host.h_addr_list = h_addr_ptrs; - host.h_length = len; - host.h_addrtype = af; - while (*cp == ' ' || *cp == '\t') - cp++; - host.h_name = cp; - q = host.h_aliases = host_aliases; - if ((cp = strpbrk(cp, " \t")) != NULL) - *cp++ = '\0'; - while (cp && *cp) { - if (*cp == ' ' || *cp == '\t') { - cp++; - continue; - } - if (q < &host_aliases[MAXALIASES - 1]) - *q++ = cp; - if ((cp = strpbrk(cp, " \t")) != NULL) - *cp++ = '\0'; - } - *q = NULL; - h_errno = NETDB_SUCCESS; - return (&host); -} - -struct hostent * -_gethostbyhtname(name, af) - const char *name; - int af; -{ - register struct hostent *p; - register char **cp; - - sethostent(0); - while ((p = gethostent()) != NULL) { - if (p->h_addrtype != af) - continue; - if (strcasecmp(p->h_name, name) == 0) - break; - for (cp = p->h_aliases; *cp != 0; cp++) - if (strcasecmp(*cp, name) == 0) - goto found; - } -found: - endhostent(); - return (p); -} - -struct hostent * -_gethostbyhtaddr(addr, len, af) - const char *addr; - int len, af; -{ - register struct hostent *p; - - sethostent(0); - while ((p = gethostent()) != NULL) - if (p->h_addrtype == af && !bcmp(p->h_addr, addr, len)) - break; - endhostent(); - return (p); -} diff --git a/lib/libc/net/gethostbyname.3 b/lib/libc/net/gethostbyname.3 deleted file mode 100644 index 1b48c4a..0000000 --- a/lib/libc/net/gethostbyname.3 +++ /dev/null @@ -1,305 +0,0 @@ -.\" Copyright (c) 1983, 1987, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" From: @(#)gethostbyname.3 8.4 (Berkeley) 5/25/95 -.\" $FreeBSD$ -.\" -.Dd May 25, 1995 -.Dt GETHOSTBYNAME 3 -.Os BSD 4.2 -.Sh NAME -.Nm gethostbyname , -.Nm gethostbyname2 , -.Nm gethostbyaddr , -.Nm gethostent , -.Nm sethostent , -.Nm endhostent , -.Nm herror , -.Nm hstrerror -.Nd get network host entry -.Sh SYNOPSIS -.Fd #include <netdb.h> -.Vt extern int h_errno; -.Ft struct hostent * -.Fn gethostbyname "const char *name" -.Ft struct hostent * -.Fn gethostbyname2 "const char *name" "int af" -.Ft struct hostent * -.Fn gethostbyaddr "const char *addr" "int len" "int type" -.Ft struct hostent * -.Fn gethostent void -.Ft void -.Fn sethostent "int stayopen" -.Ft void -.Fn endhostent void -.Ft void -.Fn herror "const char *string" -.Ft const char * -.Fn hstrerror "int err" -.Sh DESCRIPTION -The -.Fn gethostbyname , -.Fn gethostbyname2 -and -.Fn gethostbyaddr -functions -each return a pointer to an object with the -following structure describing an internet host -referenced by name or by address, respectively. -This structure contains either the information obtained from the name server, -.Xr named 8 , -or broken-out fields from a line in -.Pa /etc/hosts . -If the local name server is not running these routines do a lookup in -.Pa /etc/hosts . -.Bd -literal -struct hostent { - char *h_name; /* official name of host */ - char **h_aliases; /* alias list */ - int h_addrtype; /* host address type */ - int h_length; /* length of address */ - char **h_addr_list; /* list of addresses from name server */ -}; -#define h_addr h_addr_list[0] /* address, for backward compatibility */ -.Ed -.Pp -The members of this structure are: -.Bl -tag -width h_addr_list -.It Fa h_name -Official name of the host. -.It Fa h_aliases -A NULL-terminated array of alternate names for the host. -.It Fa h_addrtype -The type of address being returned; usually -.Dv AF_INET . -.It Fa h_length -The length, in bytes, of the address. -.It Fa h_addr_list -A NULL-terminated array of network addresses for the host. -Host addresses are returned in network byte order. -.It Fa h_addr -The first address in -.Fa h_addr_list ; -this is for backward compatibility. -.El -.Pp -When using the nameserver, -.Fn gethostbyname -and -.Fn gethostbyname2 -will search for the named host in the current domain and its parents -unless the name ends in a dot. -If the name contains no dot, and if the environment variable -.Dq Ev HOSTALIASES -contains the name of an alias file, the alias file will first be searched -for an alias matching the input name. -See -.Xr hostname 7 -for the domain search procedure and the alias file format. -.Pp -The -.Fn gethostbyname2 -function is an evolution of -.Fn gethostbyname -which is intended to allow lookups in address families other than -.Dv AF_INET , -for example -.Dv AF_INET6 . -Currently the -.Fa af -argument must be specified as -.Dv AF_INET -else the function will return -.Dv NULL -after having set -.Va h_errno -to -.Dv NETDB_INTERNAL -.Pp -The -.Fn sethostent -function -may be used to request the use of a connected -.Tn TCP -socket for queries. -If the -.Fa stayopen -flag is non-zero, -this sets the option to send all queries to the name server using -.Tn TCP -and to retain the connection after each call to -.Fn gethostbyname , -.Fn gethostbyname2 -or -.Fn gethostbyaddr . -Otherwise, queries are performed using -.Tn UDP -datagrams. -.Pp -The -.Fn endhostent -function -closes the -.Tn TCP -connection. -.Pp -The -.Fn herror -function writes a message to the diagnostic output consisting of the -string parameter -.Fa s , -the constant string ": ", and a message corresponding to the value of -.Va h_errno . -.Pp -The -.Fn hstrerror -function returns a string which is the message text corresponding to the -value of the -.Fa err -parameter. -.Sh FILES -.Bl -tag -width /etc/resolv.conf -compact -.It Pa /etc/hosts -.It Pa /etc/host.conf -.It Pa /etc/resolv.conf -.El -.Sh DIAGNOSTICS -Error return status from -.Fn gethostbyname , -.Fn gethostbyname2 -and -.Fn gethostbyaddr -is indicated by return of a null pointer. -The external integer -.Va h_errno -may then be checked to see whether this is a temporary failure -or an invalid or unknown host. -The routine -.Fn herror -can be used to print an error message describing the failure. -If its argument -.Fa string -is -.Pf non Dv -NULL , -it is printed, followed by a colon and a space. -The error message is printed with a trailing newline. -.Pp -The variable -.Va h_errno -can have the following values: -.Bl -tag -width HOST_NOT_FOUND -.It Dv HOST_NOT_FOUND -No such host is known. -.It Dv TRY_AGAIN -This is usually a temporary error -and means that the local server did not receive -a response from an authoritative server. -A retry at some later time may succeed. -.It Dv NO_RECOVERY -Some unexpected server failure was encountered. -This is a non-recoverable error. -.It Dv NO_DATA -The requested name is valid but does not have an IP address; -this is not a temporary error. -This means that the name is known to the name server but there is no address -associated with this name. -Another type of request to the name server using this domain name -will result in an answer; -for example, a mail-forwarder may be registered for this domain. -.El -.Sh SEE ALSO -.Xr resolver 3 , -.Xr hosts 5 , -.Xr hostname 7 , -.Xr named 8 -.Sh CAVEAT -The -.Fn gethostent -function -is defined, and -.Fn sethostent -and -.Fn endhostent -are redefined, -when -.Xr libc 3 -is built to use only the routines to lookup in -.Pa /etc/hosts -and not the name server. -.Pp -The -.Fn gethostent -function -reads the next line of -.Pa /etc/hosts , -opening the file if necessary. -.Pp -The -.Fn sethostent -function -opens and/or rewinds the file -.Pa /etc/hosts . -If the -.Fa stayopen -argument is non-zero, -the file will not be closed after each call to -.Fn gethostbyname , -.Fn gethostbyname2 -or -.Fn gethostbyaddr . -.Pp -The -.Fn endhostent -function -closes the file. -.Sh HISTORY -The -.Fn herror -function appeared in -.Bx 4.3 . -The -.Fn endhostent , -.Fn gethostbyaddr , -.Fn gethostbyname , -.Fn gethostent , -and -.Fn sethostent -functions appeared in -.Bx 4.2 . -The -.Fn gethostbyname2 -function first appeared in bind-4.9.4. -.Sh BUGS -These functions use static data storage; -if the data is needed for future use, it should be -copied before any subsequent calls overwrite it. -Only the Internet -address format is currently understood. diff --git a/lib/libc/net/gethostbynis.c b/lib/libc/net/gethostbynis.c deleted file mode 100644 index 82e0b3d..0000000 --- a/lib/libc/net/gethostbynis.c +++ /dev/null @@ -1,145 +0,0 @@ -/*- - * Copyright (c) 1994, Garrett Wollman - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)$FreeBSD$"; -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> -#include <netdb.h> -#include <stdio.h> -#include <stdlib.h> -#include <ctype.h> -#include <errno.h> -#include <string.h> -#ifdef YP -#include <rpc/rpc.h> -#include <rpcsvc/yp_prot.h> -#include <rpcsvc/ypclnt.h> -#endif - -#define MAXALIASES 35 -#define MAXADDRS 35 - -#ifdef YP -static char *host_aliases[MAXALIASES]; -static char hostaddr[MAXADDRS]; -static char *host_addrs[2]; -#endif /* YP */ - -static struct hostent * -_gethostbynis(name, map, af) - const char *name; - char *map; - int af; -{ -#ifdef YP - register char *cp, **q; - char *result; - int resultlen,size; - static struct hostent h; - static char *domain = (char *)NULL; - static char ypbuf[YPMAXRECORD + 2]; - - switch(af) { - case AF_INET: - size = NS_INADDRSZ; - break; - default: - case AF_INET6: - size = NS_IN6ADDRSZ; - errno = EAFNOSUPPORT; - return NULL; - } - - if (domain == (char *)NULL) - if (yp_get_default_domain (&domain)) - return ((struct hostent *)NULL); - - if (yp_match(domain, map, name, strlen(name), &result, &resultlen)) - return ((struct hostent *)NULL); - - /* avoid potential memory leak */ - bcopy((char *)result, (char *)&ypbuf, resultlen); - ypbuf[resultlen] = '\0'; - free(result); - result = (char *)&ypbuf; - - if ((cp = index(result, '\n'))) - *cp = '\0'; - - cp = strpbrk(result, " \t"); - *cp++ = '\0'; - h.h_addr_list = host_addrs; - h.h_addr = hostaddr; - *((u_long *)h.h_addr) = inet_addr(result); - h.h_length = size; - h.h_addrtype = AF_INET; - while (*cp == ' ' || *cp == '\t') - cp++; - h.h_name = cp; - q = h.h_aliases = host_aliases; - cp = strpbrk(cp, " \t"); - if (cp != NULL) - *cp++ = '\0'; - while (cp && *cp) { - if (*cp == ' ' || *cp == '\t') { - cp++; - continue; - } - if (q < &host_aliases[MAXALIASES - 1]) - *q++ = cp; - cp = strpbrk(cp, " \t"); - if (cp != NULL) - *cp++ = '\0'; - } - *q = NULL; - return (&h); -#else - return (NULL); -#endif /* YP */ -} - -struct hostent * -_gethostbynisname(name, af) - const char *name; - int af; -{ - return _gethostbynis(name, "hosts.byname", af); -} - -struct hostent * -_gethostbynisaddr(addr, len, af) - const char *addr; - int len; - int af; -{ - return _gethostbynis(inet_ntoa(*(struct in_addr *)addr),"hosts.byaddr", af); -} diff --git a/lib/libc/net/gethostnamadr.c b/lib/libc/net/gethostnamadr.c deleted file mode 100644 index 010e4db..0000000 --- a/lib/libc/net/gethostnamadr.c +++ /dev/null @@ -1,224 +0,0 @@ -/*- - * Copyright (c) 1994, Garrett Wollman - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)$FreeBSD$"; -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <netdb.h> -#include <stdio.h> -#include <ctype.h> -#include <errno.h> -#include <string.h> -#include <arpa/nameser.h> /* XXX hack for _res */ -#include <resolv.h> /* XXX hack for _res */ - -#define _PATH_HOSTCONF "/etc/host.conf" - -enum service_type { - SERVICE_NONE = 0, - SERVICE_BIND, - SERVICE_HOSTS, - SERVICE_NIS }; -#define SERVICE_MAX SERVICE_NIS - -static struct { - const char *name; - enum service_type type; -} service_names[] = { - { "hosts", SERVICE_HOSTS }, - { "/etc/hosts", SERVICE_HOSTS }, - { "hosttable", SERVICE_HOSTS }, - { "htable", SERVICE_HOSTS }, - { "bind", SERVICE_BIND }, - { "dns", SERVICE_BIND }, - { "domain", SERVICE_BIND }, - { "yp", SERVICE_NIS }, - { "yellowpages", SERVICE_NIS }, - { "nis", SERVICE_NIS }, - { 0, SERVICE_NONE } -}; - -static enum service_type service_order[SERVICE_MAX + 1]; -static int service_done = 0; - -static enum service_type -get_service_name(const char *name) { - int i; - for(i = 0; service_names[i].type != SERVICE_NONE; i++) { - if(!strcasecmp(name, service_names[i].name)) { - return service_names[i].type; - } - } - return SERVICE_NONE; -} - -static void -init_services() -{ - char *cp, *p, buf[BUFSIZ]; - register int cc = 0; - FILE *fd; - - if ((fd = (FILE *)fopen(_PATH_HOSTCONF, "r")) == NULL) { - /* make some assumptions */ - service_order[0] = SERVICE_BIND; - service_order[1] = SERVICE_HOSTS; - service_order[2] = SERVICE_NONE; - } else { - while (fgets(buf, BUFSIZ, fd) != NULL && cc < SERVICE_MAX) { - if(buf[0] == '#') - continue; - - p = buf; - while ((cp = strsep(&p, "\n \t,:;")) != NULL && *cp == '\0') - ; - if (cp == NULL) - continue; - do { - if (isalpha((unsigned char)cp[0])) { - service_order[cc] = get_service_name(cp); - if(service_order[cc] != SERVICE_NONE) - cc++; - } - while ((cp = strsep(&p, "\n \t,:;")) != NULL && *cp == '\0') - ; - } while(cp != NULL && cc < SERVICE_MAX); - } - service_order[cc] = SERVICE_NONE; - fclose(fd); - } - service_done = 1; -} - -struct hostent * -gethostbyname(const char *name) -{ - struct hostent *hp; - - if (_res.options & RES_USE_INET6) { /* XXX */ - hp = gethostbyname2(name, AF_INET6); /* XXX */ - if (hp) /* XXX */ - return (hp); /* XXX */ - } /* XXX */ - return (gethostbyname2(name, AF_INET)); -} - -struct hostent * -gethostbyname2(const char *name, int type) -{ - struct hostent *hp = 0; - int nserv = 0; - - if (!service_done) - init_services(); - - while (!hp) { - switch (service_order[nserv]) { - case SERVICE_NONE: - return NULL; - case SERVICE_HOSTS: - hp = _gethostbyhtname(name, type); - break; - case SERVICE_BIND: - hp = _gethostbydnsname(name, type); - break; - case SERVICE_NIS: - hp = _gethostbynisname(name, type); - break; - } - nserv++; - } - return hp; -} - -struct hostent * -gethostbyaddr(const char *addr, int len, int type) -{ - struct hostent *hp = 0; - int nserv = 0; - - if (!service_done) - init_services(); - - while (!hp) { - switch (service_order[nserv]) { - case SERVICE_NONE: - return 0; - case SERVICE_HOSTS: - hp = _gethostbyhtaddr(addr, len, type); - break; - case SERVICE_BIND: - hp = _gethostbydnsaddr(addr, len, type); - break; - case SERVICE_NIS: - hp = _gethostbynisaddr(addr, len, type); - break; - } - nserv++; - } - return hp; -} - -#ifdef _THREAD_SAFE -struct hostent_data; - -/* - * Temporary function (not thread safe) - */ -int gethostbyaddr_r(const char *addr, int len, int type, - struct hostent *result, struct hostent_data *buffer) -{ - struct hostent *hp; - int ret; - if ((hp = gethostbyaddr(addr, len, type)) == NULL) { - ret = -1; - } else { - memcpy(result, hp, sizeof(struct hostent)); - ret = 0; - } - return(ret); -} -#endif - -void -sethostent(stayopen) - int stayopen; -{ - _sethosthtent(stayopen); - _sethostdnsent(stayopen); -} - -void -endhostent() -{ - _endhosthtent(); - _endhostdnsent(); -} diff --git a/lib/libc/net/getipnodebyname.3 b/lib/libc/net/getipnodebyname.3 deleted file mode 100644 index d5a881a..0000000 --- a/lib/libc/net/getipnodebyname.3 +++ /dev/null @@ -1,447 +0,0 @@ -.\" Copyright (c) 1983, 1987, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" From: @(#)gethostbyname.3 8.4 (Berkeley) 5/25/95 -.\" $Id: getipnodebyname.3,v 1.2 1999/09/13 16:04:51 itojun Exp $ -.\ $FreeBSD$ -.\" -.Dd May 25, 1995 -.Dt GETIPNODEBYNAME 3 -.Os KAME -.\" -.Sh NAME -.Nm getipnodebyname , -.Nm getipnodebyaddr , -.Nm freehostent -.Nd nodename-to-address and address-to-nodename translation -.\" -.Sh SYNOPSIS -.Fd #include <sys/types.h> -.Fd #include <sys/socket.h> -.Fd #include <netdb.h> -.Ft "struct hostent *" -.Fn getipnodebyname "const char *name" "int af" "int flags" "int *error_num" -.Ft "struct hostent *" -.Fn getipnodebyaddr "const void *src" "size_t len" "int af" "int *error_num" -.Ft void -.Fn freehostent "struct hostent *ptr" -.\" -.Sh DESCRIPTION -.Fn getipnodebyname -and -.Fn getipnodebyaddr -functions are very similar to -.Xr gethostbyname 3 , -.Xr gethostbyname2 3 -and -.Xr gethostbyaddr 3 . -The functions cover all the functionalities provided by the older ones, -and provide better interface to programmers. -The functions require additional arguments, -.Ar af , -and -.Ar flags , -for specifying address family and operation mode. -The additional arguments allow programmer to get address for a nodename, -for specific address family -.Po -such as -.Dv AF_INET -or -.Dv AF_INET6 -.Pc . -The functions also require an additional pointer argument, -.Ar error_num -to return the appropriate error code, -to support thread safe error code returns. -.Pp -The type and usage of the return value, -.Li "struct hostent" -is described in -.Xr gethostbyname 3 . -.Pp -For -.Fn getipnodebyname , -the -.Ar name -argument can be either a node name or a numeric address -string -.Po -i.e., a dotted-decimal IPv4 address or an IPv6 hex address -.Pc . -The -.Ar af -argument specifies the address family, either -.Dv AF_INET -or -.Dv AF_INET6 . -The -.Ar flags -argument specifies the types of addresses that are searched for, -and the types of addresses that are returned. -We note that a special flags value of -.Dv AI_DEFAULT -.Pq defined below -should handle most applications. -That is, porting simple applications to use IPv6 replaces the call -.Bd -literal -offset - hptr = gethostbyname(name); -.Ed -.Pp -with -.Bd -literal -offset - hptr = getipnodebyname(name, AF_INET6, AI_DEFAULT, &error_num); -.Ed -.Pp -Applications desiring finer control over the types of addresses -searched for and returned, can specify other combinations of the -.Ar flags -argument. -.Pp -A -.Ar flags -of -.Li 0 -implies a strict interpretation of the -.Ar af -argument: -.Bl -bullet -.It -If -.Ar flags -is 0 and -.Ar af -is -.Dv AF_INET , -then the caller wants only IPv4 addresses. -A query is made for -.Li A -records. -If successful, the IPv4 addresses are returned and the -.Li h_length -member of the -.Li hostent -structure will be 4, else the function returns a -.Dv NULL -pointer. -.It -If -.Ar flags -is 0 and if -.Ar af -is -.Li AF_INET6 , -then the caller wants only IPv6 addresses. -A query is made for -.Li AAAA -records. -If successful, the IPv6 addresses are returned and the -.Li h_length -member of the -.Li hostent -structure will be 16, else the function returns a -.Dv NULL -pointer. -.El -.Pp -Other constants can be logically-ORed into the -.Ar flags -argument, to modify the behavior of the function. -.Bl -bullet -.It -If the -.Dv AI_V4MAPPED -flag is specified along with an -.Ar af -of -.Dv AF_INET6 , -then the caller will accept IPv4-mapped IPv6 addresses. -That is, if no -.Li AAAA -records are found then a query is made for -.Li A -records and any found are returned as IPv4-mapped IPv6 addresses -.Po -.Li h_length -will be 16 -.Pc . -The -.Dv AI_V4MAPPED -flag is ignored unless -.Ar af -equals -.Dv AF_INET6 . -.It -The -.Dv AI_V4MAPPED_CFG -flag is exact same as the -.Dv AI_V4MAPPED -flag only if the kernel supports IPv4-mapped IPv6 address. -.It -If the -.Dv AI_ALL -flag is used in conjunction with the -.Dv AI_V4MAPPED -flag, and only used with the IPv6 address family. -When -.Dv AI_ALL -is logically or'd with -.Dv AI_V4MAPPED -flag then the caller wants all addresses: IPv6 and IPv4-mapped IPv6. -A query is first made for -.Li AAAA -records and if successful, the -IPv6 addresses are returned. Another query is then made for -.Li A -records and any found are returned as IPv4-mapped IPv6 addresses. -.Li h_length -will be 16. Only if both queries fail does the function -return a -.Dv NULL -pointer. This flag is ignored unless af equals -AF_INET6. If both -.Dv AI_ALL -and -.Dv AI_V4MAPPED -are specified, -.Dv AI_ALL -takes precedence. -.It -The -.Dv AI_ADDRCONFIG -flag specifies that a query for -.Li AAAA -records -should occur only if the node has at least one IPv6 source -address configured and a query for -.Li A -records should occur only if the node has at least one IPv4 source address -configured. -.Pp -For example, if the node has no IPv6 source addresses configured, -and -.Ar af -equals AF_INET6, and the node name being looked up has both -.Li AAAA -and -.Li A -records, then: -(a) if only -.Dv AI_ADDRCONFIG -is -specified, the function returns a -.Dv NULL -pointer; -(b) if -.Dv AI_ADDRCONFIG -| -.Dv AI_V4MAPPED -is specified, the -.Li A -records are returned as IPv4-mapped IPv6 addresses; -.El -.Pp -The special flags value of -.Dv AI_DEFAULT -is defined as -.Bd -literal -offset - #define AI_DEFAULT (AI_V4MAPPED_CFG | AI_ADDRCONFIG) -.Ed -.Pp -We noted that the -.Fn getipnodebyname -function must allow the -.Ar name -argument to be either a node name or a literal address string -.Po -i.e., a dotted-decimal IPv4 address or an IPv6 hex address -.Pc . -This saves applications from having to call -.Xr inet_pton 3 -to handle literal address strings. -When the -.Ar name -argument is a literal address string, -the -.Ar flags -argument is always ignored. -.Pp -There are four scenarios based on the type of literal address string -and the value of the -.Ar af -argument. -The two simple cases are when -.Ar name -is a dotted-decimal IPv4 address and -.Ar af -equals -.Dv AF_INET , -or when -.Ar name -is an IPv6 hex address and -.Ar af -equals -.Dv AF_INET6 . -The members of the -returned hostent structure are: -.Li h_name -points to a copy of the -.Ar name -argument, -.Li h_aliases -is a -.Dv NULL -pointer, -.Li h_addrtype -is a copy of the -.Ar af -argument, -.Li h_length -is either 4 -.Po -for -.Dv AF_INET -.Pc -or 16 -.Po -for -.Dv AF_INET6 -.Pc , -.Li h_addr_list[0] -is a pointer to the 4-byte or 16-byte binary address, -and -.Li h_addr_list[1] -is a -.Dv NULL -pointer. -.Pp -When -.Ar name -is a dotted-decimal IPv4 address and -.Ar af -equals -.Dv AF_INET6 , -and -.Dv AI_V4MAPPED -is specified, -an IPv4-mapped IPv6 address is returned: -.Li h_name -points to an IPv6 hex address containing the IPv4-mapped IPv6 address, -.Li h_aliases -is a -.Dv NULL -pointer, -.Li h_addrtype -is -.Dv AF_INET6 , -.Li h_length -is 16, -.Li h_addr_list[0] -is a pointer to the 16-byte binary address, and -.Li h_addr_list[1] -is a -.Dv NULL -pointer. -.Pp -It is an error when -.Ar name -is an IPv6 hex address and -.Ar af -equals -.Dv AF_INET . -The function's return value is a -.Dv NULL -pointer and the value pointed to by -.Ar error_num -equals -.Dv HOST_NOT_FOUND . -.Pp -.Fn getipnodebyaddr -takes almost the same argument as -.Xr gethostbyaddr 3 , -but adds a pointer to return an error number. -Additionally it takes care of IPv4-mapped IPv6 addresses, -and IPv4-compatible IPv6 addresses. -.Pp -.Fn getipnodebyname -and -.Fn getipnodebyaddr -dynamically allocate the structure to be returned to the caller. -.Fn freehostent -reclaims memory region allocated and returned by -.Fn getipnodebyname -or -.Fn getipnodebyaddr . -.\" -.Sh FILES -.Bl -tag -width /etc/resolv.conf -compact -.It Pa /etc/hosts -.It Pa /etc/host.conf -.It Pa /etc/resolv.conf -.El -.\" -.Sh DIAGNOSTICS -.Nm getipnodebyname -and -.Nm getipnodebyaddr -returns -.Dv NULL -on errors. -The integer values pointed to by -.Ar error_num -may then be checked to see whether this is a temporary failure -or an invalid or unknown host. -The meanings of each error code are described in -.Xr gethostbyname 3 . -.\" -.Sh SEE ALSO -.Xr gethostbyname 3 , -.Xr gethostbyaddr 3 , -.Xr hosts 5 , -.Xr services 5 , -.Xr hostname 7 , -.Xr named 8 -.Pp -R. Gilligan, S. Thomson, J. Bound, and W. Stevens, -``Basic Socket Interface Extensions for IPv6,'' RFC2553, March 1999. -.\" -.Sh HISTORY -The implementation first appeared in KAME advanced networking kit. -.\" -.Sh STANDARDS -.Fn getipnodebyname -and -.Fn getipnodebyaddr -are documented in ``Basic Socket Interface Extensions for IPv6'' -.Pq RFC2553 . -.\" -.Sh BUGS -The text was shamelessly copied from RFC2553. diff --git a/lib/libc/net/getnameinfo.3 b/lib/libc/net/getnameinfo.3 deleted file mode 100644 index 732af8e..0000000 --- a/lib/libc/net/getnameinfo.3 +++ /dev/null @@ -1,232 +0,0 @@ -.\" Copyright (c) 1983, 1987, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" From: @(#)gethostbyname.3 8.4 (Berkeley) 5/25/95 -.\" $Id: getnameinfo.3,v 1.2 1999/10/07 04:46:27 itojun Exp $ -.\" $FreeBSD$ -.\" -.Dd May 25, 1995 -.Dt GETNAMEINFO 3 -.Os KAME -.\" -.Sh NAME -.Nm getnameinfo -.Nd address-to-nodename translation in protocol-independent manner -.\" -.Sh SYNOPSIS -.Fd #include <sys/types.h> -.Fd #include <sys/socket.h> -.Fd #include <netdb.h> -.Ft int -.Fn getnameinfo "const struct sockaddr *sa" "socklen_t salen" "char *host" "size_t hostlen" "char *serv" "size_t servlen" "int flags" -.\" -.Sh DESCRIPTION -The -.Fn getnameinfo -function is defined for protocol-independent address-to-nodename translation. -Its functionality is a reverse conversion of -.Xr getaddrinfo 3 , -and implements similar functionality with -.Xr gethostbyaddr 3 and -.Xr getservbyport 3 -in more sophisticated manner. -.Pp -This function looks up an IP address and port number provided by the -caller in the DNS and system-specific database, and returns text -strings for both in buffers provided by the caller. -The function indicates successful completion by a zero return value; -a non-zero return value indicates failure. -.Pp -The first argument, -.Fa sa , -points to either a -.Fa sockaddr_in -structure (for IPv4) or a -.Fa sockaddr_in6 -structure (for IPv6) that holds the IP address and port number. -The -.Fa salen -argument gives the length of the -.Fa sockaddr_in -or -.Fa sockaddr_in6 -structure. -.Pp -The function returns the nodename associated with the IP address in -the buffer pointed to by the -.Fa host -argument. -The caller provides the size of this buffer via the -.Fa hostlen -argument. -The service name associated with the port number is returned in the buffer -pointed to by -.Fa serv , -and the -.Fa servlen -argument gives the length of this buffer. -The caller specifies not to return either string by providing a zero -value for the -.Fa hostlen -or -.Fa servlen -arguments. -Otherwise, the caller must provide buffers large enough to hold the -nodename and the service name, including the terminating null characters. -.Pp -Unfortunately most systems do not provide constants that specify the -maximum size of either a fully-qualified domain name or a service name. -Therefore to aid the application in allocating buffers for these two -returned strings the following constants are defined in -.Li <netdb.h> : -.Bd -literal -offset -#define NI_MAXHOST 1025 -#define NI_MAXSERV 32 -.Ed -.Pp -The first value is actually defined as the constant -.Dv MAXDNAME -in recent versions of BIND's -.Li <arpa/nameser.h> -header -.Po -older versions of BIND define this constant to be 256 -.Pc -and the second is a guess based on the services listed in the current -Assigned Numbers RFC. -.Pp -The final argument is a -.Fa flag -that changes the default actions of this function. -By default the fully-qualified domain name (FQDN) for the host is -looked up in the DNS and returned. -If the flag bit -.Dv NI_NOFQDN -is set, only the nodename portion of the FQDN is returned for local hosts. -.Pp -If the -.Fa flag -bit -.Dv NI_NUMERICHOST -is set, or if the host's name cannot be located in the DNS, -the numeric form of the host's address is returned instead of its name -.Po -e.g., by calling -.Fn inet_ntop -instead of -.Fn getnodebyaddr -.Pc . -If the -.Fa flag -bit -.Dv NI_NAMEREQD -is set, an error is returned if the host's name cannot be located in the DNS. -.Pp -If the flag bit -.Dv NI_NUMERICSERV -is set, the numeric form of the service address is returned -.Pq e.g., its port number -instead of its name. -The two -.Dv NI_NUMERICxxx -flags are required to support the -.Li "-n" -flag that many commands provide. -.Pp -A fifth flag bit, -.Dv NI_DGRAM , -specifies that the service is a datagram service, and causes -.Fn getservbyport -to be called with a second argument of "udp" instead of its default of "tcp". -This is required for the few ports (512-514) -that have different services for UDP and TCP. -.Pp -These -.Dv NI_xxx -flags are defined in -.Li <netdb.h> . -.\" -.Sh EXTENSION -The implementation allows experimental numeric IPv6 address notation with -scope identifier. -IPv6 link-local address will appear as string like -.Dq Li fe80::1@ne0 , -if -.Dv NI_WITHSCOPEID -bit is enabled in -.Ar flags -argument. -Refer to -.Xr getaddrinfo 3 -for the notation. -.\" -.Sh FILES -.Bl -tag -width /etc/resolv.conf -compact -.It Pa /etc/hosts -.It Pa /etc/host.conf -.It Pa /etc/resolv.conf -.El -.\" -.Sh DIAGNOSTICS -The function indicates successful completion by a zero return value; -a non-zero return value indicates failure. -.\" -.Sh SEE ALSO -.Xr getaddrinfo 3 , -.Xr gethostbyaddr 3 , -.Xr getservbyport 3 , -.Xr hosts 5 , -.Xr services 5 , -.Xr hostname 7 , -.Xr named 8 -.Pp -.Rs -.%A R. Gilligan -.%A S. Thomson -.%A J. Bound -.%A W. Stevens -.%T Basic Socket Interface Extensions for IPv6 -.%R RFC2553 -.%D March 1999 -.Re -.\" -.Sh HISTORY -The implementation first appeared in WIDE Hydrangea IPv6 protocol stack kit. -.\" -.Sh STANDARDS -The -.Fn getaddrinfo -function is defined IEEE POSIX 1003.1g draft specification, -and documented in ``Basic Socket Interface Extensions for IPv6'' -.Pq RFC2533 . -.\" -.Sh BUGS -The text was shamelessly copied from RFC2553. diff --git a/lib/libc/net/getnameinfo.c b/lib/libc/net/getnameinfo.c deleted file mode 100644 index 5edcffb..0000000 --- a/lib/libc/net/getnameinfo.c +++ /dev/null @@ -1,235 +0,0 @@ -/* - * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -/* - * Issues to be discussed: - * - Thread safe-ness must be checked - * - Return values. There seems to be no standard for return value (RFC2553) - * but INRIA implementation returns EAI_xxx defined for getaddrinfo(). - */ - -#include <sys/types.h> -#include <sys/socket.h> -#include <net/if.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> -#include <netdb.h> -#include <resolv.h> -#include <string.h> -#include <stddef.h> - -#define SUCCESS 0 -#define ANY 0 -#define YES 1 -#define NO 0 - -static struct afd { - int a_af; - int a_addrlen; - int a_socklen; - int a_off; -} afdl [] = { -#ifdef INET6 - {PF_INET6, sizeof(struct in6_addr), sizeof(struct sockaddr_in6), - offsetof(struct sockaddr_in6, sin6_addr)}, -#endif - {PF_INET, sizeof(struct in_addr), sizeof(struct sockaddr_in), - offsetof(struct sockaddr_in, sin_addr)}, - {0, 0, 0}, -}; - -struct sockinet { - u_char si_len; - u_char si_family; - u_short si_port; -}; - -#define ENI_NOSOCKET 0 -#define ENI_NOSERVHOST 1 -#define ENI_NOHOSTNAME 2 -#define ENI_MEMORY 3 -#define ENI_SYSTEM 4 -#define ENI_FAMILY 5 -#define ENI_SALEN 6 - -int -getnameinfo(sa, salen, host, hostlen, serv, servlen, flags) - const struct sockaddr *sa; - size_t salen; - char *host; - size_t hostlen; - char *serv; - size_t servlen; - int flags; -{ - struct afd *afd; - struct servent *sp; - struct hostent *hp; - u_short port; - int family, i; - char *addr, *p; - u_long v4a; - int h_error; - char numserv[512]; - char numaddr[512]; - int noserv = 0; - - if (sa == NULL) - return ENI_NOSOCKET; - - if (sa->sa_len != salen) - return ENI_SALEN; - - family = sa->sa_family; - for (i = 0; afdl[i].a_af; i++) - if (afdl[i].a_af == family) { - afd = &afdl[i]; - goto found; - } - return ENI_FAMILY; - - found: - if (salen != afd->a_socklen) - return ENI_SALEN; - - port = ((struct sockinet *)sa)->si_port; /* network byte order */ - addr = (char *)sa + afd->a_off; - - if (serv == NULL || servlen == 0) { - noserv = 1; - } else { - if (flags & NI_NUMERICSERV) - sp = NULL; - else { - sp = getservbyport(port, - (flags & NI_DGRAM) ? "udp" : "tcp"); - } - if (sp) { - if (strlen(sp->s_name) > servlen) - return ENI_MEMORY; - strcpy(serv, sp->s_name); - } else { - snprintf(numserv, sizeof(numserv), "%d", ntohs(port)); - if (strlen(numserv) > servlen) - return ENI_MEMORY; - strcpy(serv, numserv); - } - } - - switch (sa->sa_family) { - case AF_INET: - v4a = ntohl(((struct sockaddr_in *)sa)->sin_addr.s_addr); - if (IN_MULTICAST(v4a) || IN_EXPERIMENTAL(v4a)) - flags |= NI_NUMERICHOST; - v4a >>= IN_CLASSA_NSHIFT; - if (v4a == 0) - flags |= NI_NUMERICHOST; - break; -#ifdef INET6 - case AF_INET6: - { - struct sockaddr_in6 *sin6; - sin6 = (struct sockaddr_in6 *)sa; - if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr) || - IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr)) - flags |= NI_NUMERICHOST; - } - break; -#endif - } - if (host == NULL || hostlen == 0) { - if (noserv == 1) - return ENI_NOSERVHOST; - } else if (flags & NI_NUMERICHOST) { - /* NUMERICHOST and NAMEREQD conflicts with each other */ - if (flags & NI_NAMEREQD) - return ENI_NOHOSTNAME; - if (inet_ntop(afd->a_af, addr, numaddr, sizeof(numaddr)) - == NULL) - return ENI_SYSTEM; - if (strlen(numaddr) > hostlen) - return ENI_MEMORY; - strcpy(host, numaddr); -#ifdef INET6 - if (afd->a_af == AF_INET6 && - (IN6_IS_ADDR_LINKLOCAL((struct in6_addr *)addr) || - IN6_IS_ADDR_MULTICAST((struct in6_addr *)addr)) && - ((struct sockaddr_in6 *)sa)->sin6_scope_id) { - if (flags & NI_WITHSCOPEID) { - char *ep = strchr(host, '\0'); - unsigned int ifindex = - ((struct sockaddr_in6 *)sa)->sin6_scope_id; - char ifname[IF_NAMESIZE * 2 /* for safety */]; - int scopelen, numaddrlen; - - if ((if_indextoname(ifindex, ifname)) == NULL) - return ENI_SYSTEM; - scopelen = strlen(ifname); - numaddrlen = strlen(host); - if (numaddrlen + 1 /* SCOPE_DELIMITER */ - + scopelen > hostlen) - return ENI_MEMORY; - /* - * Construct <numeric-addr><delim><scopeid> - */ - memcpy(host + numaddrlen + 1, ifname, scopelen); - host[numaddrlen] = SCOPE_DELIMITER; - host[numaddrlen + 1 + scopelen] = '\0'; - } - } -#endif /* INET6 */ - } else { - hp = getipnodebyaddr(addr, afd->a_addrlen, afd->a_af, &h_error); - if (hp) { - if (flags & NI_NOFQDN) { - p = strchr(hp->h_name, '.'); - if (p) *p = '\0'; - } - if (strlen(hp->h_name) > hostlen) { - freehostent(hp); - return ENI_MEMORY; - } - strcpy(host, hp->h_name); - freehostent(hp); - } else { - if (flags & NI_NAMEREQD) - return ENI_NOHOSTNAME; - if (inet_ntop(afd->a_af, addr, numaddr, sizeof(numaddr)) - == NULL) - return ENI_NOHOSTNAME; - if (strlen(numaddr) > hostlen) - return ENI_MEMORY; - strcpy(host, numaddr); - } - } - return SUCCESS; -} diff --git a/lib/libc/net/getnetbydns.c b/lib/libc/net/getnetbydns.c deleted file mode 100644 index 65d9d2d..0000000 --- a/lib/libc/net/getnetbydns.c +++ /dev/null @@ -1,313 +0,0 @@ -/*- - * Copyright (c) 1985, 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - - * Portions Copyright (c) 1993 by Digital Equipment Corporation. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies, and that - * the name of Digital Equipment Corporation not be used in advertising or - * publicity pertaining to distribution of the document or software without - * specific, written prior permission. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT - * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - * - - * --Copyright-- - */ -/* Portions Copyright (c) 1993 Carlos Leandro and Rui Salgueiro - * Dep. Matematica Universidade de Coimbra, Portugal, Europe - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)gethostnamadr.c 8.1 (Berkeley) 6/4/93"; -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> - -#include <stdio.h> -#include <netdb.h> -#include <resolv.h> -#include <ctype.h> -#include <errno.h> -#include <string.h> -#include <unistd.h> -#include <syslog.h> - -#include "res_config.h" - -extern int h_errno; - -#define BYADDR 0 -#define BYNAME 1 -#define MAXALIASES 35 - -#if PACKETSZ > 1024 -#define MAXPACKET PACKETSZ -#else -#define MAXPACKET 1024 -#endif - -typedef union { - HEADER hdr; - u_char buf[MAXPACKET]; -} querybuf; - -typedef union { - long al; - char ac; -} align; - -static struct netent * -getnetanswer(answer, anslen, net_i) - querybuf *answer; - int anslen; - int net_i; -{ - - register HEADER *hp; - register u_char *cp; - register int n; - u_char *eom; - int type, class, buflen, ancount, qdcount, haveanswer, i, nchar; - char aux1[MAXHOSTNAMELEN], aux2[MAXHOSTNAMELEN], ans[MAXHOSTNAMELEN]; - char *in, *st, *pauxt, *bp, **ap; - char *paux1 = &aux1[0], *paux2 = &aux2[0], flag = 0; -static struct netent net_entry; -static char *net_aliases[MAXALIASES], netbuf[PACKETSZ]; - - /* - * find first satisfactory answer - * - * answer --> +------------+ ( MESSAGE ) - * | Header | - * +------------+ - * | Question | the question for the name server - * +------------+ - * | Answer | RRs answering the question - * +------------+ - * | Authority | RRs pointing toward an authority - * | Additional | RRs holding additional information - * +------------+ - */ - eom = answer->buf + anslen; - hp = &answer->hdr; - ancount = ntohs(hp->ancount); /* #/records in the answer section */ - qdcount = ntohs(hp->qdcount); /* #/entries in the question section */ - bp = netbuf; - buflen = sizeof(netbuf); - cp = answer->buf + HFIXEDSZ; - if (!qdcount) { - if (hp->aa) - h_errno = HOST_NOT_FOUND; - else - h_errno = TRY_AGAIN; - return (NULL); - } - while (qdcount-- > 0) - cp += __dn_skipname(cp, eom) + QFIXEDSZ; - ap = net_aliases; - *ap = NULL; - net_entry.n_aliases = net_aliases; - haveanswer = 0; - while (--ancount >= 0 && cp < eom) { - n = dn_expand(answer->buf, eom, cp, bp, buflen); - if ((n < 0) || !res_dnok(bp)) - break; - cp += n; - ans[0] = '\0'; - (void)strncpy(&ans[0], bp, sizeof(ans) - 1); - ans[sizeof(ans) - 1] = '\0'; - GETSHORT(type, cp); - GETSHORT(class, cp); - cp += INT32SZ; /* TTL */ - GETSHORT(n, cp); - if (class == C_IN && type == T_PTR) { - n = dn_expand(answer->buf, eom, cp, bp, buflen); - if ((n < 0) || !res_hnok(bp)) { - cp += n; - return (NULL); - } - cp += n; - *ap++ = bp; - bp += strlen(bp) + 1; - net_entry.n_addrtype = - (class == C_IN) ? AF_INET : AF_UNSPEC; - haveanswer++; - } - } - if (haveanswer) { - *ap = NULL; - switch (net_i) { - case BYADDR: - net_entry.n_name = *net_entry.n_aliases; - net_entry.n_net = 0L; - break; - case BYNAME: - in = *net_entry.n_aliases; - net_entry.n_name = &ans[0]; - aux2[0] = '\0'; - for (i = 0; i < 4; i++) { - for (st = in, nchar = 0; - *st != '.'; - st++, nchar++) - ; - if (nchar != 1 || *in != '0' || flag) { - flag = 1; - (void)strncpy(paux1, - (i==0) ? in : in-1, - (i==0) ?nchar : nchar+1); - paux1[(i==0) ? nchar : nchar+1] = '\0'; - pauxt = paux2; - paux2 = strcat(paux1, paux2); - paux1 = pauxt; - } - in = ++st; - } - net_entry.n_net = inet_network(paux2); - break; - } - net_entry.n_aliases++; - return (&net_entry); - } - h_errno = TRY_AGAIN; - return (NULL); -} - -struct netent * -_getnetbydnsaddr(net, net_type) - register unsigned long net; - register int net_type; -{ - unsigned int netbr[4]; - int nn, anslen; - querybuf buf; - char qbuf[MAXDNAME]; - unsigned long net2; - struct netent *net_entry; - - if (net_type != AF_INET) - return (NULL); - - for (nn = 4, net2 = net; net2; net2 >>= 8) - netbr[--nn] = net2 & 0xff; - switch (nn) { - case 3: /* Class A */ - sprintf(qbuf, "0.0.0.%u.in-addr.arpa", netbr[3]); - break; - case 2: /* Class B */ - sprintf(qbuf, "0.0.%u.%u.in-addr.arpa", netbr[3], netbr[2]); - break; - case 1: /* Class C */ - sprintf(qbuf, "0.%u.%u.%u.in-addr.arpa", netbr[3], netbr[2], - netbr[1]); - break; - case 0: /* Class D - E */ - sprintf(qbuf, "%u.%u.%u.%u.in-addr.arpa", netbr[3], netbr[2], - netbr[1], netbr[0]); - break; - } - anslen = res_query(qbuf, C_IN, T_PTR, (u_char *)&buf, sizeof(buf)); - if (anslen < 0) { -#ifdef DEBUG - if (_res.options & RES_DEBUG) - printf("res_query failed\n"); -#endif - return (NULL); - } - net_entry = getnetanswer(&buf, anslen, BYADDR); - if (net_entry) { - unsigned u_net = net; /* maybe net should be unsigned ? */ - - /* Strip trailing zeros */ - while ((u_net & 0xff) == 0 && u_net != 0) - u_net >>= 8; - net_entry->n_net = u_net; - return (net_entry); - } - return (NULL); -} - -struct netent * -_getnetbydnsname(net) - register const char *net; -{ - int anslen; - querybuf buf; - char qbuf[MAXDNAME]; - - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - h_errno = NETDB_INTERNAL; - return (NULL); - } - strncpy(qbuf, net, sizeof(qbuf) - 1); - qbuf[sizeof(qbuf) - 1] = '\0'; - anslen = res_search(qbuf, C_IN, T_PTR, (u_char *)&buf, sizeof(buf)); - if (anslen < 0) { -#ifdef DEBUG - if (_res.options & RES_DEBUG) - printf("res_query failed\n"); -#endif - return (NULL); - } - return getnetanswer(&buf, anslen, BYNAME); -} - -void -_setnetdnsent(stayopen) - int stayopen; -{ - if (stayopen) - _res.options |= RES_STAYOPEN | RES_USEVC; -} - -void -_endnetdnsent() -{ - _res.options &= ~(RES_STAYOPEN | RES_USEVC); - res_close(); -} diff --git a/lib/libc/net/getnetbyht.c b/lib/libc/net/getnetbyht.c deleted file mode 100644 index ab164b1..0000000 --- a/lib/libc/net/getnetbyht.c +++ /dev/null @@ -1,173 +0,0 @@ -/* - * Copyright (c) 1983, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* Portions Copyright (c) 1993 Carlos Leandro and Rui Salgueiro - * Dep. Matematica Universidade de Coimbra, Portugal, Europe - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * from getnetent.c 1.1 (Coimbra) 93/06/02 - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)getnetent.c 8.1 (Berkeley) 6/4/93"; -static char orig_rcsid[] = "From: Id: getnetent.c,v 8.4 1997/06/01 20:34:37 vixie Exp"; -static chat rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> -#include <netdb.h> -#include <stdio.h> -#include <string.h> - -#define MAXALIASES 35 - -static FILE *netf; -static char line[BUFSIZ+1]; -static struct netent net; -static char *net_aliases[MAXALIASES]; -static int _net_stayopen; - -void -_setnethtent(f) - int f; -{ - - if (netf == NULL) - netf = fopen(_PATH_NETWORKS, "r" ); - else - rewind(netf); - _net_stayopen |= f; -} - -void -_endnethtent() -{ - - if (netf) { - fclose(netf); - netf = NULL; - } - _net_stayopen = 0; -} - -struct netent * -getnetent() -{ - char *p; - register char *cp, **q; - - if (netf == NULL && (netf = fopen(_PATH_NETWORKS, "r" )) == NULL) - return (NULL); -again: - p = fgets(line, sizeof line, netf); - if (p == NULL) - return (NULL); - if (*p == '#') - goto again; - cp = strpbrk(p, "#\n"); - if (cp == NULL) - goto again; - *cp = '\0'; - net.n_name = p; - cp = strpbrk(p, " \t"); - if (cp == NULL) - goto again; - *cp++ = '\0'; - while (*cp == ' ' || *cp == '\t') - cp++; - p = strpbrk(cp, " \t"); - if (p != NULL) - *p++ = '\0'; - net.n_net = inet_network(cp); - net.n_addrtype = AF_INET; - q = net.n_aliases = net_aliases; - if (p != NULL) - cp = p; - while (cp && *cp) { - if (*cp == ' ' || *cp == '\t') { - cp++; - continue; - } - if (q < &net_aliases[MAXALIASES - 1]) - *q++ = cp; - cp = strpbrk(cp, " \t"); - if (cp != NULL) - *cp++ = '\0'; - } - *q = NULL; - return (&net); -} - -struct netent * -_getnetbyhtname(name) - register const char *name; -{ - register struct netent *p; - register char **cp; - - setnetent(_net_stayopen); - while ( (p = getnetent()) ) { - if (strcasecmp(p->n_name, name) == 0) - break; - for (cp = p->n_aliases; *cp != 0; cp++) - if (strcasecmp(*cp, name) == 0) - goto found; - } -found: - if (!_net_stayopen) - endnetent(); - return (p); -} - -struct netent * -_getnetbyhtaddr(net, type) - register unsigned long net; - register int type; -{ - register struct netent *p; - - setnetent(_net_stayopen); - while ( (p = getnetent()) ) - if (p->n_addrtype == type && p->n_net == net) - break; - if (!_net_stayopen) - endnetent(); - return (p); -} diff --git a/lib/libc/net/getnetbynis.c b/lib/libc/net/getnetbynis.c deleted file mode 100644 index 0ab7073..0000000 --- a/lib/libc/net/getnetbynis.c +++ /dev/null @@ -1,177 +0,0 @@ -/*- - * Copyright (c) 1994, Garrett Wollman - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)$FreeBSD$"; -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <netdb.h> -#include <stdio.h> -#include <stdlib.h> -#include <ctype.h> -#include <errno.h> -#include <string.h> -#include <arpa/nameser.h> -#ifdef YP -#include <rpc/rpc.h> -#include <rpcsvc/yp_prot.h> -#include <rpcsvc/ypclnt.h> -#endif - -#define MAXALIASES 35 -#define MAXADDRS 35 - -#ifdef YP -static char *host_aliases[MAXALIASES]; -#endif /* YP */ - -static struct netent * -_getnetbynis(name, map, af) - const char *name; - char *map; - int af; -{ -#ifdef YP - register char *cp, **q; - static char *result; - int resultlen; - static struct netent h; - static char *domain = (char *)NULL; - static char ypbuf[YPMAXRECORD + 2]; - - switch(af) { - case AF_INET: - break; - default: - case AF_INET6: - errno = EAFNOSUPPORT; - return NULL; - } - - if (domain == (char *)NULL) - if (yp_get_default_domain (&domain)) - return (NULL); - - if (yp_match(domain, map, name, strlen(name), &result, &resultlen)) - return (NULL); - - bcopy((char *)result, (char *)&ypbuf, resultlen); - ypbuf[resultlen] = '\0'; - free(result); - result = (char *)&ypbuf; - - if ((cp = index(result, '\n'))) - *cp = '\0'; - - cp = strpbrk(result, " \t"); - *cp++ = '\0'; - h.n_name = result; - - while (*cp == ' ' || *cp == '\t') - cp++; - - h.n_net = inet_network(cp); - h.n_addrtype = AF_INET; - - q = h.n_aliases = host_aliases; - cp = strpbrk(cp, " \t"); - if (cp != NULL) - *cp++ = '\0'; - while (cp && *cp) { - if (*cp == ' ' || *cp == '\t') { - cp++; - continue; - } - if (q < &host_aliases[MAXALIASES - 1]) - *q++ = cp; - cp = strpbrk(cp, " \t"); - if (cp != NULL) - *cp++ = '\0'; - } - *q = NULL; - return (&h); -#else - return (NULL); -#endif -} - -struct netent * -_getnetbynisname(name) - const char *name; -{ - return _getnetbynis(name, "networks.byname", AF_INET); -} - -struct netent * -_getnetbynisaddr(addr, af) - unsigned long addr; - int af; -{ - char *str, *cp; - unsigned long net2; - int nn; - unsigned int netbr[4]; - char buf[MAXDNAME]; - - if (af != AF_INET) { - errno = EAFNOSUPPORT; - return (NULL); - } - - for (nn = 4, net2 = addr; net2; net2 >>= 8) { - netbr[--nn] = net2 & 0xff; - } - - switch (nn) { - case 3: /* Class A */ - sprintf(buf, "%u", netbr[3]); - break; - case 2: /* Class B */ - sprintf(buf, "%u.%u", netbr[2], netbr[3]); - break; - case 1: /* Class C */ - sprintf(buf, "%u.%u.%u", netbr[1], netbr[2], netbr[3]); - break; - case 0: /* Class D - E */ - sprintf(buf, "%u.%u.%u.%u", netbr[0], netbr[1], - netbr[2], netbr[3]); - break; - } - - str = (char *)&buf; - cp = str + (strlen(str) - 2); - - while(!strcmp(cp, ".0")) { - *cp = '\0'; - cp = str + (strlen(str) - 2); - } - - return _getnetbynis(str, "networks.byaddr", af); -} diff --git a/lib/libc/net/getnetent.3 b/lib/libc/net/getnetent.3 deleted file mode 100644 index 1bf3664..0000000 --- a/lib/libc/net/getnetent.3 +++ /dev/null @@ -1,160 +0,0 @@ -.\" Copyright (c) 1983, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" @(#)getnetent.3 8.1 (Berkeley) 6/4/93 -.\" $FreeBSD$ -.\" -.Dd June 4, 1993 -.Dt GETNETENT 3 -.Os BSD 4.2 -.Sh NAME -.Nm getnetent , -.Nm getnetbyaddr , -.Nm getnetbyname , -.Nm setnetent , -.Nm endnetent -.Nd get network entry -.Sh SYNOPSIS -.Fd #include <netdb.h> -.Ft struct netent * -.Fn getnetent void -.Ft struct netent * -.Fn getnetbyname "const char *name" -.Ft struct netent * -.Fn getnetbyaddr "unsigned long net" "int type" -.Ft void -.Fn setnetent "int stayopen" -.Ft void -.Fn endnetent void -.Sh DESCRIPTION -The -.Fn getnetent , -.Fn getnetbyname , -and -.Fn getnetbyaddr -functions -each return a pointer to an object with the -following structure -containing the broken-out -fields of a line in the network data base, -.Pa /etc/networks . -.Bd -literal -offset indent -struct netent { - char *n_name; /* official name of net */ - char **n_aliases; /* alias list */ - int n_addrtype; /* net number type */ - unsigned long n_net; /* net number */ -}; -.Ed -.Pp -The members of this structure are: -.Bl -tag -width n_addrtype -.It Fa n_name -The official name of the network. -.It Fa n_aliases -A zero terminated list of alternate names for the network. -.It Fa n_addrtype -The type of the network number returned; currently only AF_INET. -.It Fa n_net -The network number. Network numbers are returned in machine byte -order. -.El -.Pp -The -.Fn getnetent -function -reads the next line of the file, opening the file if necessary. -.Pp -The -.Fn setnetent -function -opens and rewinds the file. If the -.Fa stayopen -flag is non-zero, -the net data base will not be closed after each call to -.Fn getnetbyname -or -.Fn getnetbyaddr . -.Pp -The -.Fn endnetent -function -closes the file. -.Pp -The -.Fn getnetbyname -function -and -.Fn getnetbyaddr -sequentially search from the beginning -of the file until a matching -net name or -net address and type is found, -or until -.Dv EOF -is encountered. -The -.Fa type -must be -.Dv AF_INET . -Network numbers are supplied in host order. -.Sh FILES -.Bl -tag -width /etc/networks -compact -.It Pa /etc/networks -.El -.Sh DIAGNOSTICS -Null pointer -(0) returned on -.Dv EOF -or error. -.Sh SEE ALSO -.Xr networks 5 -.Pp -.%T RFC 1101 -.Sh HISTORY -The -.Fn getnetent , -.Fn getnetbyaddr , -.Fn getnetbyname , -.Fn setnetent , -and -.Fn endnetent -functions appeared in -.Bx 4.2 . -.Sh BUGS -The data space used by -these functions is static; if future use requires the data, it should be -copied before any subsequent calls to these functions overwrite it. -Only Internet network -numbers are currently understood. -Expecting network numbers to fit -in no more than 32 bits is probably -naive. diff --git a/lib/libc/net/getnetnamadr.c b/lib/libc/net/getnetnamadr.c deleted file mode 100644 index cb5871b..0000000 --- a/lib/libc/net/getnetnamadr.c +++ /dev/null @@ -1,190 +0,0 @@ -/*- - * Copyright (c) 1994, Garrett Wollman - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <netdb.h> -#include <stdio.h> -#include <ctype.h> -#include <errno.h> -#include <string.h> - -#ifndef _PATH_NETCONF -#define _PATH_NETCONF "/etc/host.conf" -#endif - -enum service_type { - SERVICE_NONE = 0, - SERVICE_BIND, - SERVICE_TABLE, - SERVICE_NIS }; -#define SERVICE_MAX SERVICE_NIS - -static struct { - const char *name; - enum service_type type; -} service_names[] = { - { "hosts", SERVICE_TABLE }, - { "/etc/hosts", SERVICE_TABLE }, - { "hosttable", SERVICE_TABLE }, - { "htable", SERVICE_TABLE }, - { "bind", SERVICE_BIND }, - { "dns", SERVICE_BIND }, - { "domain", SERVICE_BIND }, - { "yp", SERVICE_NIS }, - { "yellowpages", SERVICE_NIS }, - { "nis", SERVICE_NIS }, - { 0, SERVICE_NONE } -}; - -static enum service_type service_order[SERVICE_MAX + 1]; -static int service_done = 0; - -static enum service_type -get_service_name(const char *name) { - int i; - for(i = 0; service_names[i].type != SERVICE_NONE; i++) { - if(!strcasecmp(name, service_names[i].name)) { - return service_names[i].type; - } - } - return SERVICE_NONE; -} - -static void -init_services() -{ - char *cp, *p, buf[BUFSIZ]; - register int cc = 0; - FILE *fd; - - if ((fd = (FILE *)fopen(_PATH_NETCONF, "r")) == NULL) { - /* make some assumptions */ - service_order[0] = SERVICE_TABLE; - service_order[1] = SERVICE_NONE; - } else { - while (fgets(buf, BUFSIZ, fd) != NULL && cc < SERVICE_MAX) { - if(buf[0] == '#') - continue; - - p = buf; - while ((cp = strsep(&p, "\n \t,:;")) != NULL && *cp == '\0') - ; - if (cp == NULL) - continue; - do { - if (isalpha((unsigned char)cp[0])) { - service_order[cc] = get_service_name(cp); - if(service_order[cc] != SERVICE_NONE) - cc++; - } - while ((cp = strsep(&p, "\n \t,:;")) != NULL && *cp == '\0') - ; - } while(cp != NULL && cc < SERVICE_MAX); - } - service_order[cc] = SERVICE_NONE; - fclose(fd); - } - service_done = 1; -} - -struct netent * -getnetbyname(const char *name) -{ - struct netent *hp = 0; - int nserv = 0; - - if (!service_done) - init_services(); - - while (!hp) { - switch (service_order[nserv]) { - case SERVICE_NONE: - return NULL; - case SERVICE_TABLE: - hp = _getnetbyhtname(name); - break; - case SERVICE_BIND: - hp = _getnetbydnsname(name); - break; - case SERVICE_NIS: - hp = _getnetbynisname(name); - break; - } - nserv++; - } - return hp; -} - -struct netent * -getnetbyaddr(addr, af) - u_long addr; - int af; -{ - struct netent *hp = 0; - int nserv = 0; - - if (!service_done) - init_services(); - - while (!hp) { - switch (service_order[nserv]) { - case SERVICE_NONE: - return 0; - case SERVICE_TABLE: - hp = _getnetbyhtaddr(addr, af); - break; - case SERVICE_BIND: - hp = _getnetbydnsaddr(addr, af); - break; - case SERVICE_NIS: - hp = _getnetbynisaddr(addr, af); - break; - } - nserv++; - } - return hp; -} - -void -setnetent(stayopen) - int stayopen; -{ - _setnethtent(stayopen); - _setnetdnsent(stayopen); -} - -void -endnetent() -{ - _endnethtent(); - _endnetdnsent(); -} diff --git a/lib/libc/net/getproto.c b/lib/libc/net/getproto.c deleted file mode 100644 index 46f46d3..0000000 --- a/lib/libc/net/getproto.c +++ /dev/null @@ -1,55 +0,0 @@ -/* - * Copyright (c) 1983, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)getproto.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <netdb.h> - -extern int _proto_stayopen; - -struct protoent * -getprotobynumber(proto) - register int proto; -{ - register struct protoent *p; - - setprotoent(_proto_stayopen); - while ( (p = getprotoent()) ) - if (p->p_proto == proto) - break; - if (!_proto_stayopen) - endprotoent(); - return (p); -} diff --git a/lib/libc/net/getprotoent.3 b/lib/libc/net/getprotoent.3 deleted file mode 100644 index fad937e..0000000 --- a/lib/libc/net/getprotoent.3 +++ /dev/null @@ -1,147 +0,0 @@ -.\" Copyright (c) 1983, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" @(#)getprotoent.3 8.1 (Berkeley) 6/4/93 -.\" $FreeBSD$ -.\" -.Dd June 4, 1993 -.Dt GETPROTOENT 3 -.Os BSD 4.2 -.Sh NAME -.Nm getprotoent , -.Nm getprotobynumber , -.Nm getprotobyname , -.Nm setprotoent , -.Nm endprotoent -.Nd get protocol entry -.Sh SYNOPSIS -.Fd #include <netdb.h> -.Ft struct protoent * -.Fn getprotoent void -.Ft struct protoent * -.Fn getprotobyname "const char *name" -.Ft struct protoent * -.Fn getprotobynumber "int proto" -.Ft void -.Fn setprotoent "int stayopen" -.Ft void -.Fn endprotoent void -.Sh DESCRIPTION -The -.Fn getprotoent , -.Fn getprotobyname , -and -.Fn getprotobynumber -functions -each return a pointer to an object with the -following structure -containing the broken-out -fields of a line in the network protocol data base, -.Pa /etc/protocols . -.Bd -literal -offset indent -.Pp -struct protoent { - char *p_name; /* official name of protocol */ - char **p_aliases; /* alias list */ - int p_proto; /* protocol number */ -}; -.Ed -.Pp -The members of this structure are: -.Bl -tag -width p_aliases -.It Fa p_name -The official name of the protocol. -.It Fa p_aliases -A zero terminated list of alternate names for the protocol. -.It Fa p_proto -The protocol number. -.El -.Pp -The -.Fn getprotoent -function -reads the next line of the file, opening the file if necessary. -.Pp -The -.Fn setprotoent -function -opens and rewinds the file. If the -.Fa stayopen -flag is non-zero, -the net data base will not be closed after each call to -.Fn getprotobyname -or -.Fn getprotobynumber . -.Pp -The -.Fn endprotoent -function -closes the file. -.Pp -The -.Fn getprotobyname -function -and -.Fn getprotobynumber -sequentially search from the beginning -of the file until a matching -protocol name or -protocol number is found, -or until -.Dv EOF -is encountered. -.Sh RETURN VALUES -Null pointer -(0) returned on -.Dv EOF -or error. -.Sh FILES -.Bl -tag -width /etc/protocols -compact -.It Pa /etc/protocols -.El -.Sh SEE ALSO -.Xr protocols 5 -.Sh HISTORY -The -.Fn getprotoent , -.Fn getprotobynumber , -.Fn getprotobyname , -.Fn setprotoent , -and -.Fn endprotoent -functions appeared in -.Bx 4.2 . -.Sh BUGS -These functions use a static data space; -if the data is needed for future use, it should be -copied before any subsequent calls overwrite it. -Only the Internet -protocols are currently understood. diff --git a/lib/libc/net/getprotoent.c b/lib/libc/net/getprotoent.c deleted file mode 100644 index c10ae33..0000000 --- a/lib/libc/net/getprotoent.c +++ /dev/null @@ -1,119 +0,0 @@ -/* - * Copyright (c) 1983, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)getprotoent.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/socket.h> -#include <netdb.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#define MAXALIASES 35 - -static FILE *protof = NULL; -static char line[BUFSIZ+1]; -static struct protoent proto; -static char *proto_aliases[MAXALIASES]; -int _proto_stayopen; - -void -setprotoent(f) - int f; -{ - if (protof == NULL) - protof = fopen(_PATH_PROTOCOLS, "r" ); - else - rewind(protof); - _proto_stayopen |= f; -} - -void -endprotoent() -{ - if (protof) { - fclose(protof); - protof = NULL; - } - _proto_stayopen = 0; -} - -struct protoent * -getprotoent() -{ - char *p; - register char *cp, **q; - - if (protof == NULL && (protof = fopen(_PATH_PROTOCOLS, "r" )) == NULL) - return (NULL); -again: - if ((p = fgets(line, BUFSIZ, protof)) == NULL) - return (NULL); - if (*p == '#') - goto again; - cp = strpbrk(p, "#\n"); - if (cp == NULL) - goto again; - *cp = '\0'; - proto.p_name = p; - cp = strpbrk(p, " \t"); - if (cp == NULL) - goto again; - *cp++ = '\0'; - while (*cp == ' ' || *cp == '\t') - cp++; - p = strpbrk(cp, " \t"); - if (p != NULL) - *p++ = '\0'; - proto.p_proto = atoi(cp); - q = proto.p_aliases = proto_aliases; - if (p != NULL) { - cp = p; - while (cp && *cp) { - if (*cp == ' ' || *cp == '\t') { - cp++; - continue; - } - if (q < &proto_aliases[MAXALIASES - 1]) - *q++ = cp; - cp = strpbrk(cp, " \t"); - if (cp != NULL) - *cp++ = '\0'; - } - } - *q = NULL; - return (&proto); -} diff --git a/lib/libc/net/getprotoname.c b/lib/libc/net/getprotoname.c deleted file mode 100644 index 0832acf..0000000 --- a/lib/libc/net/getprotoname.c +++ /dev/null @@ -1,62 +0,0 @@ -/* - * Copyright (c) 1983, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)getprotoname.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <netdb.h> -#include <string.h> - -extern int _proto_stayopen; - -struct protoent * -getprotobyname(name) - register const char *name; -{ - register struct protoent *p; - register char **cp; - - setprotoent(_proto_stayopen); - while ( (p = getprotoent()) ) { - if (strcmp(p->p_name, name) == 0) - break; - for (cp = p->p_aliases; *cp != 0; cp++) - if (strcmp(*cp, name) == 0) - goto found; - } -found: - if (!_proto_stayopen) - endprotoent(); - return (p); -} diff --git a/lib/libc/net/getservbyname.c b/lib/libc/net/getservbyname.c deleted file mode 100644 index 124f5ac..0000000 --- a/lib/libc/net/getservbyname.c +++ /dev/null @@ -1,79 +0,0 @@ -/* - * Copyright (c) 1983, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)getservbyname.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <netdb.h> -#include <string.h> - -extern int _serv_stayopen; - -struct servent * -getservbyname(name, proto) - const char *name, *proto; -{ - register struct servent *p; - register char **cp; - -#ifdef YP - extern char *___getservbyname_yp; - extern char *___getservbyproto_yp; - - ___getservbyname_yp = (char *)name; - ___getservbyproto_yp = (char *)proto; -#endif - - setservent(_serv_stayopen); - while ( (p = getservent()) ) { - if (strcmp(name, p->s_name) == 0) - goto gotname; - for (cp = p->s_aliases; *cp; cp++) - if (strcmp(name, *cp) == 0) - goto gotname; - continue; -gotname: - if (proto == 0 || strcmp(p->s_proto, proto) == 0) - break; - } - if (!_serv_stayopen) - endservent(); - -#ifdef YP - ___getservbyname_yp = NULL; - ___getservbyproto_yp = NULL; -#endif - - return (p); -} diff --git a/lib/libc/net/getservbyport.c b/lib/libc/net/getservbyport.c deleted file mode 100644 index ef9a2e8..0000000 --- a/lib/libc/net/getservbyport.c +++ /dev/null @@ -1,74 +0,0 @@ -/* - * Copyright (c) 1983, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)getservbyport.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <netdb.h> -#include <string.h> - -extern int _serv_stayopen; - -struct servent * -getservbyport(port, proto) - int port; - const char *proto; -{ - register struct servent *p; - -#ifdef YP - extern int ___getservbyport_yp; - extern char *___getservbyproto_yp; - - ___getservbyport_yp = port; - ___getservbyproto_yp = (char *)proto; -#endif - - setservent(_serv_stayopen); - while ( (p = getservent()) ) { - if (p->s_port != port) - continue; - if (proto == 0 || strcmp(p->s_proto, proto) == 0) - break; - } - if (!_serv_stayopen) - endservent(); - -#ifdef YP - ___getservbyport_yp = 0; - ___getservbyproto_yp = NULL; -#endif - - return (p); -} diff --git a/lib/libc/net/getservent.3 b/lib/libc/net/getservent.3 deleted file mode 100644 index eac2361..0000000 --- a/lib/libc/net/getservent.3 +++ /dev/null @@ -1,157 +0,0 @@ -.\" Copyright (c) 1983, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" From: @(#)getservent.3 8.3 (Berkeley) 1/12/94 -.\" $FreeBSD$ -.\" -.Dd July 9, 1995 -.Dt GETSERVENT 3 -.Os BSD 4.2 -.Sh NAME -.Nm getservent , -.Nm getservbyport , -.Nm getservbyname , -.Nm setservent , -.Nm endservent -.Nd get service entry -.Sh SYNOPSIS -.Fd #include <netdb.h> -.Ft struct servent * -.Fn getservent -.Ft struct servent * -.Fn getservbyname "const char *name" "const char *proto" -.Ft struct servent * -.Fn getservbyport "int port" "const char *proto" -.Ft void -.Fn setservent "int stayopen" -.Ft void -.Fn endservent void -.Sh DESCRIPTION -The -.Fn getservent , -.Fn getservbyname , -and -.Fn getservbyport -functions -each return a pointer to an object with the -following structure -containing the broken-out -fields of a line in the network services data base, -.Pa /etc/services . -.Bd -literal -offset indent -struct servent { - char *s_name; /* official name of service */ - char **s_aliases; /* alias list */ - int s_port; /* port service resides at */ - char *s_proto; /* protocol to use */ -}; -.Ed -.Pp -The members of this structure are: -.Bl -tag -width s_aliases -.It Fa s_name -The official name of the service. -.It Fa s_aliases -A zero terminated list of alternate names for the service. -.It Fa s_port -The port number at which the service resides. -Port numbers are returned in network byte order. -.It Fa s_proto -The name of the protocol to use when contacting the -service. -.El -.Pp -The -.Fn getservent -function -reads the next line of the file, opening the file if necessary. -.Pp -The -.Fn setservent -function -opens and rewinds the file. If the -.Fa stayopen -flag is non-zero, -the net data base will not be closed after each call to -.Fn getservbyname -or -.Fn getservbyport . -.Pp -The -.Fn endservent -function -closes the file. -.Pp -The -.Fn getservbyname -and -.Fn getservbyport -functions -sequentially search from the beginning -of the file until a matching -protocol name or -port number (which must be specified in -network byte order) is found, -or until -.Dv EOF -is encountered. -If a protocol name is also supplied (non- -.Dv NULL ) , -searches must also match the protocol. -.ne 1i -.Sh FILES -.Bl -tag -width /etc/services -compact -.It Pa /etc/services -.El -.Sh DIAGNOSTICS -Null pointer -(0) returned on -.Dv EOF -or error. -.Sh SEE ALSO -.Xr getprotoent 3 , -.Xr services 5 -.Sh HISTORY -The -.Fn getservent , -.Fn getservbyport , -.Fn getservbyname , -.Fn setservent , -and -.Fn endservent -functions appeared in -.Bx 4.2 . -.Sh BUGS -These functions use static data storage; -if the data is needed for future use, it should be -copied before any subsequent calls overwrite it. -Expecting port numbers to fit in a 32 bit -quantity is probably naive. diff --git a/lib/libc/net/getservent.c b/lib/libc/net/getservent.c deleted file mode 100644 index cd4449f..0000000 --- a/lib/libc/net/getservent.c +++ /dev/null @@ -1,278 +0,0 @@ -/* - * Copyright (c) 1983, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)getservent.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/socket.h> -#include <netdb.h> -#include <stdio.h> -#include <string.h> -#include <stdlib.h> -#ifdef YP -#include <rpc/rpc.h> -#include <rpcsvc/yp_prot.h> -#include <rpcsvc/ypclnt.h> -static int serv_stepping_yp = 0; -extern int _yp_check __P(( char ** )); -#endif - - -#define MAXALIASES 35 - -static FILE *servf = NULL; -static char line[BUFSIZ+1]; -static struct servent serv; -static char *serv_aliases[MAXALIASES]; -int _serv_stayopen; - -#ifdef YP -char *___getservbyname_yp = NULL; -char *___getservbyproto_yp = NULL; -int ___getservbyport_yp = 0; -static char *yp_domain = NULL; - -static int -_getservbyport_yp(line) - char *line; -{ - char *result; - int resultlen; - char buf[YPMAXRECORD + 2]; - int rv; - - snprintf(buf, sizeof(buf), "%d/%s", ntohs(___getservbyport_yp), - ___getservbyproto_yp); - - ___getservbyport_yp = 0; - ___getservbyproto_yp = NULL; - - if(!yp_domain) { - if(yp_get_default_domain(&yp_domain)) - return (0); - } - - /* - * We have to be a little flexible here. Ideally you're supposed - * to have both a services.byname and a services.byport map, but - * some systems have only services.byname. FreeBSD cheats a little - * by putting the services.byport information in the same map as - * services.byname so that either case will work. We allow for both - * possibilities here: if there is no services.byport map, we try - * services.byname instead. - */ - if ((rv = yp_match(yp_domain, "services.byport", buf, strlen(buf), - &result, &resultlen))) { - if (rv == YPERR_MAP) { - if (yp_match(yp_domain, "services.byname", buf, - strlen(buf), &result, &resultlen)) - return(0); - } else - return(0); - } - - /* getservent() expects lines terminated with \n -- make it happy */ - snprintf(line, BUFSIZ, "%.*s\n", resultlen, result); - - free(result); - return(1); -} - -static int -_getservbyname_yp(line) - char *line; -{ - char *result; - int resultlen; - char buf[YPMAXRECORD + 2]; - - if(!yp_domain) { - if(yp_get_default_domain(&yp_domain)) - return (0); - } - - snprintf(buf, sizeof(buf), "%s/%s", ___getservbyname_yp, - ___getservbyproto_yp); - - ___getservbyname_yp = 0; - ___getservbyproto_yp = NULL; - - if (yp_match(yp_domain, "services.byname", buf, strlen(buf), - &result, &resultlen)) { - return(0); - } - - /* getservent() expects lines terminated with \n -- make it happy */ - snprintf(line, BUFSIZ, "%.*s\n", resultlen, result); - - free(result); - return(1); -} - -static int -_getservent_yp(line) - char *line; -{ - static char *key = NULL; - static int keylen; - char *lastkey, *result; - int resultlen; - int rv; - - if(!yp_domain) { - if(yp_get_default_domain(&yp_domain)) - return (0); - } - - if (!serv_stepping_yp) { - if (key) - free(key); - if ((rv = yp_first(yp_domain, "services.byname", &key, &keylen, - &result, &resultlen))) { - serv_stepping_yp = 0; - return(0); - } - serv_stepping_yp = 1; - } else { - lastkey = key; - rv = yp_next(yp_domain, "services.byname", key, keylen, &key, - &keylen, &result, &resultlen); - free(lastkey); - if (rv) { - serv_stepping_yp = 0; - return (0); - } - } - - /* getservent() expects lines terminated with \n -- make it happy */ - snprintf(line, BUFSIZ, "%.*s\n", resultlen, result); - - free(result); - - return(1); -} -#endif - -void -setservent(f) - int f; -{ - if (servf == NULL) - servf = fopen(_PATH_SERVICES, "r" ); - else - rewind(servf); - _serv_stayopen |= f; -} - -void -endservent() -{ - if (servf) { - fclose(servf); - servf = NULL; - } - _serv_stayopen = 0; -} - -struct servent * -getservent() -{ - char *p; - register char *cp, **q; - -#ifdef YP - if (serv_stepping_yp && _getservent_yp(line)) { - p = (char *)&line; - goto unpack; - } -tryagain: -#endif - if (servf == NULL && (servf = fopen(_PATH_SERVICES, "r" )) == NULL) - return (NULL); -again: - if ((p = fgets(line, BUFSIZ, servf)) == NULL) - return (NULL); -#ifdef YP - if (*p == '+' && _yp_check(NULL)) { - if (___getservbyname_yp != NULL) { - if (!_getservbyname_yp(line)) - goto tryagain; - } - else if (___getservbyport_yp != 0) { - if (!_getservbyport_yp(line)) - goto tryagain; - } - else if (!_getservent_yp(line)) - goto tryagain; - } -unpack: -#endif - if (*p == '#') - goto again; - cp = strpbrk(p, "#\n"); - if (cp == NULL) - goto again; - *cp = '\0'; - serv.s_name = p; - p = strpbrk(p, " \t"); - if (p == NULL) - goto again; - *p++ = '\0'; - while (*p == ' ' || *p == '\t') - p++; - cp = strpbrk(p, ",/"); - if (cp == NULL) - goto again; - *cp++ = '\0'; - serv.s_port = htons((u_short)atoi(p)); - serv.s_proto = cp; - q = serv.s_aliases = serv_aliases; - cp = strpbrk(cp, " \t"); - if (cp != NULL) - *cp++ = '\0'; - while (cp && *cp) { - if (*cp == ' ' || *cp == '\t') { - cp++; - continue; - } - if (q < &serv_aliases[MAXALIASES - 1]) - *q++ = cp; - cp = strpbrk(cp, " \t"); - if (cp != NULL) - *cp++ = '\0'; - } - *q = NULL; - return (&serv); -} diff --git a/lib/libc/net/herror.c b/lib/libc/net/herror.c deleted file mode 100644 index 0ab7448..0000000 --- a/lib/libc/net/herror.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - * Copyright (c) 1987, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* - * Portions Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)herror.c 8.1 (Berkeley) 6/4/93"; -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/uio.h> -#include <netdb.h> -#include <string.h> -#include <unistd.h> - -const char *h_errlist[] = { - "Resolver Error 0 (no error)", - "Unknown host", /* 1 HOST_NOT_FOUND */ - "Host name lookup failure", /* 2 TRY_AGAIN */ - "Unknown server error", /* 3 NO_RECOVERY */ - "No address associated with name", /* 4 NO_ADDRESS */ -}; -int h_nerr = { sizeof h_errlist / sizeof h_errlist[0] }; - -int h_errno; - -/* - * herror -- - * print the error indicated by the h_errno value. - */ -void -herror(s) - const char *s; -{ - struct iovec iov[4]; - register struct iovec *v = iov; - - if (s && *s) { - v->iov_base = (char *)s; - v->iov_len = strlen(s); - v++; - v->iov_base = ": "; - v->iov_len = 2; - v++; - } - v->iov_base = (char *)hstrerror(h_errno); - v->iov_len = strlen(v->iov_base); - v++; - v->iov_base = "\n"; - v->iov_len = 1; - writev(STDERR_FILENO, iov, (v - iov) + 1); -} - -const char * -hstrerror(err) - int err; -{ - if (err < 0) - return ("Resolver internal error"); - else if (err < h_nerr) - return (h_errlist[err]); - return ("Unknown resolver error"); -} diff --git a/lib/libc/net/if_indextoname.3 b/lib/libc/net/if_indextoname.3 deleted file mode 100644 index 0906ee0..0000000 --- a/lib/libc/net/if_indextoname.3 +++ /dev/null @@ -1,144 +0,0 @@ -.\" Copyright (c) 1983, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" From: @(#)rcmd.3 8.1 (Berkeley) 6/4/93 -.\" $FreeBSD$ -.\" -.Dd May 21, 1998 -.Dt IF_NAMETOINDEX 3 -.Os KAME -.Sh NAME -.Nm if_nametoindex , -.Nm if_indextoname , -.Nm if_nameindex , -.Nm if_freenameindex -.Nd convert interface index to name, and vice versa -.Sh SYNOPSIS -.Fd #include <sys/types.h> -.Fd #include <sys/socket.h> -.Fd #include <net/if.h> -.Ft "unsigned int" -.Fn if_nametoindex "const char *ifname" -.Ft "char *" -.Fn if_indextoname "unsigned int ifindex" "char *ifname" -.Ft "struct if_nameindex *" -.Fn if_nameindex "void" -.Ft "void" -.Fn if_freenameindex "struct if_nameindex *ptr" -.Sh DESCRIPTION -The functions map interface index to readable interface name -.Po -such as -.Li ``lo0'' -.Pc -, and vice versa. -.Pp -.Fn if_nametoindex -converts readable interface name to interface index -.Pp positive integer value . -If the specified interface does not exist, 0 will be returned. -.Pp -.Fn if_indextoname -converts interface index to readable interface name. -The -.Fa ifname -argument must point to a buffer of at least -.Dv IF_NAMESIZE -bytes into which the interface name corresponding to the specified index is -returned. -.Po -.Dv IF_NAMESIZE -is also defined in -.Li <net/if.h> -and its value includes a terminating null byte at the end of the -interface name. -.Pc -This pointer is also the return value of the function. -If there is no interface corresponding to the specified index, -.Dv NULL -is returned. -.Pp -.Fn if_nameindex -returns an array of -.Fa if_nameindex -structures. -.Fa if_nametoindex -is also defined in -.Li <net/if.h> , -and is as follows: -.Bd -literal -offset -struct if_nameindex { - unsigned int if_index; /* 1, 2, ... */ - char *if_name; /* null terminated name: "le0", ... */ -}; -.Ed -.Pp -The end of the array of structures is indicated by a structure with -an -.Fa if_index -of 0 and an -.Fa if_name -of -.Dv NULL . -The function returns a -.Dv NULL -pointer upon an error. -The memory used for this array of structures along with the interface -names pointed to by the -.Fa if_name -members is obtained dynamically. -This memory is freed by the -.Fn if_freenameindex -function. -.Pp -.Fn if_freenameindex -takes a pointer that was returned by -.Fn if_nameindex -as argument -.Pq Fa ptr , -and it reclaims the region allocated. -.Sh DIAGNOSTICS -.Fn if_nametoindex -returns 0 on error, positive integer on success. -.Fn if_indextoname -and -.Fn if_nameindex -return -.Dv NULL -on errors. -.Sh SEE ALSO -R. Gilligan, S. Thomson, J. Bound, and W. Stevens, -``Basic Socket Interface Extensions for IPv6,'' RFC2553, March 1999. -.Sh HISTORY -The implementation first appeared in WIDE Hydrangea IPv6 protocol stack kit. -.Sh STANDARDS -These functions are defined in ``Basic Socket Interface Extensions for IPv6'' -.Pq RFC2533 . diff --git a/lib/libc/net/ifname.c b/lib/libc/net/ifname.c deleted file mode 100644 index 3d3916a..0000000 --- a/lib/libc/net/ifname.c +++ /dev/null @@ -1,212 +0,0 @@ -/* - * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -/* - * TODO: - * - prototype defs into arpa/inet.h, not net/if.h (bsd-api-new-02) - */ - -#include <sys/param.h> -#include <sys/socket.h> -#include <sys/sysctl.h> -#include <net/if.h> -#include <net/route.h> -#include <net/if_dl.h> - -#include <errno.h> -#include <stdlib.h> -#include <string.h> - -#define ROUNDUP(a) \ - ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) -#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) - -unsigned int -if_nametoindex(ifname) - const char *ifname; -{ - struct if_nameindex *iff = if_nameindex(), *ifx; - int ret; - - if (iff == NULL) return 0; - ifx = iff; - while (ifx->if_name != NULL) { - if (strcmp(ifx->if_name, ifname) == 0) { - ret = ifx->if_index; - if_freenameindex(iff); - return ret; - } - ifx++; - } - if_freenameindex(iff); - errno = ENXIO; - return 0; -} - -char * -if_indextoname(ifindex, ifname) - unsigned int ifindex; - char *ifname; /* at least IF_NAMESIZE */ -{ - struct if_nameindex *iff = if_nameindex(), *ifx; - char *cp, *dp; - - if (iff == NULL) return NULL; - ifx = iff; - while (ifx->if_index != 0) { - if (ifx->if_index == ifindex) { - cp = ifname; - dp = ifx->if_name; - while ((*cp++ = *dp++)) ; - if_freenameindex(iff); - return (ifname); - } - ifx++; - } - if_freenameindex(iff); - errno = ENXIO; - return NULL; -} - -struct if_nameindex * -if_nameindex() -{ - size_t needed; - int mib[6], i, ifn = 0, off = 0, hlen; - char *buf = NULL, *lim, *next, *cp, *ifbuf = NULL; - struct rt_msghdr *rtm; - struct if_msghdr *ifm; - struct sockaddr *sa; - struct sockaddr_dl *sdl; - struct if_nameindex *ret = NULL; - static int ifxs = 64; /* initial upper limit */ - struct _ifx { - int if_index; - int if_off; - } *ifx = NULL; - - mib[0] = CTL_NET; - mib[1] = PF_ROUTE; - mib[2] = 0; /* protocol */ - mib[3] = 0; /* wildcard address family */ - mib[4] = NET_RT_IFLIST; - mib[5] = 0; /* no flags */ - if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) - return NULL; - if ((buf = malloc(needed)) == NULL) { - errno = ENOMEM; - goto end; - } - /* XXX: we may have allocated too much than necessary */ - if ((ifbuf = malloc(needed)) == NULL) { - errno = ENOMEM; - goto end; - } - if ((ifx = (struct _ifx *)malloc(sizeof(*ifx) * ifxs)) == NULL) { - errno = ENOMEM; - goto end; - } - if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { - /* sysctl has set errno */ - goto end; - } - lim = buf + needed; - for (next = buf; next < lim; next += rtm->rtm_msglen) { - rtm = (struct rt_msghdr *)next; - if (rtm->rtm_version != RTM_VERSION) { - errno = EPROTONOSUPPORT; - goto end; - } - switch (rtm->rtm_type) { - case RTM_IFINFO: - ifm = (struct if_msghdr *)rtm; - ifx[ifn].if_index = ifm->ifm_index; - ifx[ifn].if_off = off; - cp = (char *)(ifm + 1); - for (i = 1; i; i <<= 1) { - if (i & ifm->ifm_addrs) { - sa = (struct sockaddr *)cp; - if (i == RTA_IFP && - sa->sa_family == AF_LINK) { - sdl = (struct sockaddr_dl *)sa; - memcpy(ifbuf + off, - sdl->sdl_data, - sdl->sdl_nlen); - off += sdl->sdl_nlen; - *(ifbuf + off) = '\0'; - off++; - } - ADVANCE(cp, sa); - } - } - if (++ifn == ifxs) { - /* we need more memory */ - struct _ifx *newifx; - - ifxs *= 2; - if ((newifx = (struct _ifx *)malloc(sizeof(*newifx) * ifxs)) == NULL) { - errno = ENOMEM; - goto end; - } - - /* copy and free old data */ - memcpy(newifx, ifx, (sizeof(*ifx) * ifxs) / 2); - free(ifx); - ifx = newifx; - } - } - } - hlen = sizeof(struct if_nameindex) * (ifn + 1); - if ((cp = (char *)malloc(hlen + off)) == NULL) { - errno = ENOMEM; - goto end; - } - bcopy(ifbuf, cp + hlen, off); - ret = (struct if_nameindex *)cp; - for (i = 0; i < ifn; i++) { - ret[i].if_index = ifx[i].if_index; - ret[i].if_name = cp + hlen + ifx[i].if_off; - } - ret[ifn].if_index = 0; - ret[ifn].if_name = NULL; - - end: - if (buf) free(buf); - if (ifbuf) free(ifbuf); - if (ifx) free(ifx); - - return ret; -} - -void if_freenameindex(ptr) - struct if_nameindex *ptr; -{ - free(ptr); -} diff --git a/lib/libc/net/inet.3 b/lib/libc/net/inet.3 deleted file mode 100644 index f9941fc..0000000 --- a/lib/libc/net/inet.3 +++ /dev/null @@ -1,267 +0,0 @@ -.\" Copyright (c) 1983, 1990, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" From: @(#)inet.3 8.1 (Berkeley) 6/4/93 -.\" $FreeBSD$ -.\" -.Dd June 17, 1996 -.Dt INET 3 -.Os BSD 4.2 -.Sh NAME -.Nm inet_aton , -.Nm inet_addr , -.Nm inet_network , -.Nm inet_ntoa , -.Nm inet_ntop , -.Nm inet_pton , -.Nm inet_makeaddr , -.Nm inet_lnaof , -.Nm inet_netof -.Nd Internet address manipulation routines -.Sh SYNOPSIS -.Fd #include <sys/types.h> -.Fd #include <sys/socket.h> -.Fd #include <netinet/in.h> -.Fd #include <arpa/inet.h> -.Ft int -.Fn inet_aton "const char *cp" "struct in_addr *pin" -.Ft unsigned long -.Fn inet_addr "const char *cp" -.Ft unsigned long -.Fn inet_network "const char *cp" -.Ft char * -.Fn inet_ntoa "struct in_addr in" -.Ft const char * -.Fn inet_ntop "int af" "const void *src" "char *dst" "size_t size" -.Ft int -.Fn inet_pton "int af" "const char *src" "void *dst" -.Ft struct in_addr -.Fn inet_makeaddr "unsigned long net" "unsigned long lna" -.Ft unsigned long -.Fn inet_lnaof "struct in_addr in" -.Ft unsigned long -.Fn inet_netof "struct in_addr in" -.Sh DESCRIPTION -The routines -.Fn inet_aton , -.Fn inet_addr -and -.Fn inet_network -interpret character strings representing -numbers expressed in the Internet standard -.Ql \&. -notation. -.Pp -The -.Fn inet_pton -function converts a presentation format address (that is, printable form -as held in a character string) to network format (usually a -.Ft struct in_addr -or some other internal binary representation, in network byte order). -It returns 1 if the address was valid for the specified address family, or -0 if the address wasn't parseable in the specified address family, or -1 -if some system error occurred (in which case -.Va errno -will have been set). -This function is presently valid for -.Dv AF_INET -and -.Dv AF_INET6 . -.Pp -The -.Fn inet_aton -routine interprets the specified character string as an Internet address, -placing the address into the structure provided. -It returns 1 if the string was successfully interpreted, -or 0 if the string is invalid. -The -.Fn inet_addr -and -.Fn inet_network -functions return numbers suitable for use -as Internet addresses and Internet network -numbers, respectively. -.Pp -The function -.Fn inet_ntop -converts an address from network format (usually a -.Ft struct in_addr -or some other binary form, in network byte order) to presentation format -(suitable for external display purposes). -It returns NULL if a system error occurs (in which case, -.Va errno -will have been set), or it returns a pointer to the destination string. -This function is presently valid for -.Dv AF_INET -and -.Dv AF_INET6 . -.Pp -The routine -.Fn inet_ntoa -takes an Internet address and returns an -.Tn ASCII -string representing the address in -.Ql \&. -notation. The routine -.Fn inet_makeaddr -takes an Internet network number and a local -network address and constructs an Internet address -from it. The routines -.Fn inet_netof -and -.Fn inet_lnaof -break apart Internet host addresses, returning -the network number and local network address part, -respectively. -.Pp -All Internet addresses are returned in network -order (bytes ordered from left to right). -All network numbers and local address parts are -returned as machine format integer values. -.Sh INTERNET ADDRESSES -Values specified using the -.Ql \&. -notation take one -of the following forms: -.Bd -literal -offset indent -a.b.c.d -a.b.c -a.b -a -.Ed -.Pp -When four parts are specified, each is interpreted -as a byte of data and assigned, from left to right, -to the four bytes of an Internet address. Note -that when an Internet address is viewed as a 32-bit -integer quantity on the -.Tn VAX -the bytes referred to -above appear as -.Dq Li d.c.b.a . -That is, -.Tn VAX -bytes are -ordered from right to left. -.Pp -When a three part address is specified, the last -part is interpreted as a 16-bit quantity and placed -in the right-most two bytes of the network address. -This makes the three part address format convenient -for specifying Class B network addresses as -.Dq Li 128.net.host . -.Pp -When a two part address is supplied, the last part -is interpreted as a 24-bit quantity and placed in -the right most three bytes of the network address. -This makes the two part address format convenient -for specifying Class A network addresses as -.Dq Li net.host . -.Pp -When only one part is given, the value is stored -directly in the network address without any byte -rearrangement. -.Pp -All numbers supplied as -.Dq parts -in a -.Ql \&. -notation -may be decimal, octal, or hexadecimal, as specified -in the C language (i.e., a leading 0x or 0X implies -hexadecimal; otherwise, a leading 0 implies octal; -otherwise, the number is interpreted as decimal). -.Pp -The -.Fn inet_aton -and -.Fn inet_ntoa -functions are semi-deprecated in favor of the -.Xr addr2ascii 3 -family. However, since those functions are not yet widely implemented, -portable programs cannot rely on their presence and will continue -to use the -.Xr inet 3 -functions for some time. -.Sh DIAGNOSTICS -The constant -.Dv INADDR_NONE -is returned by -.Fn inet_addr -and -.Fn inet_network -for malformed requests. -.Sh SEE ALSO -.Xr addr2ascii 3 , -.Xr gethostbyname 3 , -.Xr getnetent 3 , -.Xr hosts 5 , -.Xr networks 5 -.Rs -.%R RFC -.%N 2373 -.%D July 1998 -.%T "IP Version 6 Addressing Architecture" -.Re -.Sh STANDARDS -The -.Nm inet_ntop -and -.Nm inet_pton -functions conform to -.St -xns5.2d2.0 . -Note that -.Nm inet_pton -does not accept 1-, 2-, or 3-part dotted addresses; all four parts -must be specified. -This is a narrower input set than that accepted by -.Nm inet_aton . -.Sh HISTORY -These -functions appeared in -.Bx 4.2 . -.Sh BUGS -The value -.Dv INADDR_NONE -(0xffffffff) is a valid broadcast address, but -.Fn inet_addr -cannot return that value without indicating failure. -The newer -.Fn inet_aton -function does not share this problem. -The problem of host byte ordering versus network byte ordering is -confusing. -The string returned by -.Fn inet_ntoa -resides in a static memory area. -.Pp -Inet_addr should return a -.Fa struct in_addr . diff --git a/lib/libc/net/inet6_option_space.3 b/lib/libc/net/inet6_option_space.3 deleted file mode 100644 index 6fd71b6..0000000 --- a/lib/libc/net/inet6_option_space.3 +++ /dev/null @@ -1,451 +0,0 @@ -.\" Copyright (c) 1983, 1987, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" $Id: inet6_option_space.3,v 1.4 2000/02/05 10:32:24 jinmei Exp $ -.\" $FreeBSD$ -.\" -.Dd December 10, 1999 -.Dt INET6_OPTION_SPACE 3 -.Os KAME -.\" -.Sh NAME -.Nm inet6_option_space , -.Nm inet6_option_init , -.Nm inet6_option_append , -.Nm inet6_option_alloc , -.Nm inet6_option_next , -.Nm inet6_option_find -.Nd IPv6 Hop-by-Hop and Destination Options manipulation -.\" -.Sh SYNOPSIS -.Fd #include <sys/types.h> -.Fd #include <netinet/in.h> -.Ft "int" -.Fn inet6_option_space "int nbytes" -.Ft "int" -.Fn inet6_option_init "void *bp" "struct cmsghdr **cmsgp" "int type" -.Ft "int" -.Fn inet6_option_append "struct cmsghdr *cmsg" "const u_int8_t *typep" "int multx" "int plusy" -.Ft "u_int8_t *" -.Fn inet6_option_alloc "struct cmsghdr *cmsg" "int datalen" "int multx" "int plusy" -.Ft "int" -.Fn inet6_option_next "const struct cmsghdr *cmsg" "u_int8_t **tptrp" -.Ft "int" -.Fn inet6_option_find "const struct cmsghdr *cmsg" "u_int8_t **tptrp" "int type" -.\" -.Sh DESCRIPTION -.\" -Building and parsing the Hop-by-Hop and Destination options is -complicated due to alignment constranints, padding and -ancillary data manipulation. -RFC2292 defines a set of functions to help the application. -The function prototypes for -these functions are all in the -.Aq Li netinet/in.h -header. -.\" -.Ss inet6_option_space -.Fn inet6_option_space -returns the number of bytes required to hold an option when it is stored as -ancillary data, including the -.Li cmsghdr -structure at the beginning, -and any padding at the end -.Po -to make its size a multiple of 8 bytes -.Pc . -The argument is the size of the structure defining the option, -which must include any pad bytes at the beginning -.Po -the value -.Li y -in the alignment term -.Dq Li xn + y -.Pc , -the type byte, the length byte, and the option data. -.Pp -Note: If multiple options are stored in a single ancillary data -object, which is the recommended technique, this function -overestimates the amount of space required by the size of -.Li N-1 -.Li cmsghdr -structures, -where -.Li N -is the number of options to be stored in the object. -This is of little consequence, since it is assumed that most -Hop-by-Hop option headers and Destination option headers carry only -one option -.Pq appendix B of [RFC-2460] . -.\" -.Ss inet6_option_init -.Fn inet6_option_init -is called once per ancillary data object that will -contain either Hop-by-Hop or Destination options. -It returns -.Li 0 -on success or -.Li -1 -on an error. -.Pp -.Fa bp -is a pointer to previously allocated space that will contain the -ancillary data object. -It must be large enough to contain all the -individual options to be added by later calls to -.Fn inet6_option_append -and -.Fn inet6_option_alloc . -.Pp -.Fa cmsgp -is a pointer to a pointer to a -.Li cmsghdr -structure. -.Fa *cmsgp -is initialized by this function to point to the -.Li cmsghdr -structure constructed by this function in the buffer pointed to by -.Fa bp . -.Pp -.Fa type -is either -.Dv IPV6_HOPOPTS -or -.Dv IPV6_DSTOPTS . -This -.Fa type -is stored in the -.Li cmsg_type -member of the -.Li cmsghdr -structure pointed to by -.Fa *cmsgp . -.\" -.Ss inet6_option_append -This function appends a Hop-by-Hop option or a Destination option -into an ancillary data object that has been initialized by -.Fn inet6_option_init . -This function returns -.Li 0 -if it succeeds or -.Li -1 -on an error. -.Pp -.Fa cmsg -is a pointer to the -.Li cmsghdr -structure that must have been -initialized by -.Fn inet6_option_init . -.Pp -.Fa typep -is a pointer to the 8-bit option type. -It is assumed that this -field is immediately followed by the 8-bit option data length field, -which is then followed immediately by the option data. -The caller -initializes these three fields -.Pq the type-length-value, or TLV -before calling this function. -.Pp -The option type must have a value from -.Li 2 -to -.Li 255 , inclusive. -.Po -.Li 0 -and -.Li 1 -are reserved for the -.Li Pad1 -and -.Li PadN -options, respectively. -.Pc -.Pp -The option data length must have a value between -.Li 0 -and -.Li 255 , -inclusive, and is the length of the option data that follows. -.Pp -.Fa multx -is the value -.Li x -in the alignment term -.Dq Li xn + y . -It must have a value of -.Li 1 , -.Li 2 , -.Li 4 , -or -.Li 8 . -.Pp -.Fa plusy -is the value -.Li y -in the alignment term -.Dq Li xn + y . -It must have a value between -.Li 0 -and -.Li 7 , -inclusive. -.\" -.Ss inet6_option_alloc -This function appends a Hop-by-Hop option or a Destination option -into an ancillary data object that has been initialized by -.Fn inet6_option_init . -This function returns a pointer to the 8-bit -option type field that starts the option on success, or -.Dv NULL -on an error. -.Pp -The difference between this function and -.Fn inet6_option_append -is that the latter copies the contents of a previously built option into -the ancillary data object while the current function returns a -pointer to the space in the data object where the option's TLV must -then be built by the caller. -.Pp -.Fa cmsg -is a pointer to the -.Li cmsghdr -structure that must have been -initialized by -.Fn inet6_option_init . -.Pp -.Fa datalen -is the value of the option data length byte for this option. -This value is required as an argument to allow the function to -determine if padding must be appended at the end of the option. -.Po -The -.Fn inet6_option_append -function does not need a data length argument -since the option data length must already be stored by the caller. -.Pc -.Pp -.Fa multx -is the value -.Li x -in the alignment term -.Dq Li xn + y . -It must have a value of -.Li 1 , -.Li 2 , -.Li 4 , -or -.Li 8 . -.Pp -.Fa plusy -is the value -.Li y -in the alignment term -.Dq Li xn + y . -It must have a value between -.Li 0 -and -.Li 7 , -inclusive. -.\" -.Ss inet6_option_next -This function processes the next Hop-by-Hop option or Destination -option in an ancillary data object. -If another option remains to be -processed, the return value of the function is -.Li 0 -and -.Fa *tptrp -points to -the 8-bit option type field -.Po -which is followed by the 8-bit option -data length, followed by the option data -.Pc . -If no more options remain -to be processed, the return value is -.Li -1 -and -.Fa *tptrp -is -.Dv NULL . -If an error occurs, the return value is -.Li -1 -and -.Fa *tptrp -is not -.Dv NULL . -.Pp -.Fa cmsg -is a pointer to -.Li cmsghdr -structure of which -.Li cmsg_level -equals -.Dv IPPROTO_IPV6 -and -.Li cmsg_type -equals either -.Dv IPV6_HOPOPTS -or -.Dv IPV6_DSTOPTS . -.Pp -.Fa tptrp -is a pointer to a pointer to an 8-bit byte and -.Fa *tptrp -is used -by the function to remember its place in the ancillary data object -each time the function is called. -The first time this function is -called for a given ancillary data object, -.Fa *tptrp -must be set to -.Dv NULL . -.Pp -Each time this function returns success, -.Fa *tptrp -points to the 8-bit -option type field for the next option to be processed. -.\" -.Ss inet6_option_find -This function is similar to the previously described -.Fn inet6_option_next -function, except this function lets the caller -specify the option type to be searched for, instead of always -returning the next option in the ancillary data object. -.Fa cmsg -is a -pointer to -.Li cmsghdr -structure of which -.Li cmsg_level -equals -.Dv IPPROTO_IPV6 -and -.Li cmsg_type -equals either -.Dv IPV6_HOPOPTS -or -.Dv IPV6_DSTOPTS . -.Pp -.Fa tptrp -is a pointer to a pointer to an 8-bit byte and -.Fa *tptrp -is used -by the function to remember its place in the ancillary data object -each time the function is called. -The first time this function is -called for a given ancillary data object, -.Fa *tptrp -must be set to -.Dv NULL . -.Pa -This function starts searching for an option of the specified type -beginning after the value of -.Fa *tptrp . -If an option of the specified -type is located, this function returns -.Li 0 -and -.Fa *tptrp -points to the 8- -bit option type field for the option of the specified type. -If an -option of the specified type is not located, the return value is -.Li -1 -and -.Fa *tptrp -is -.Dv NULL . -If an error occurs, the return value is -.Li -1 -and -.Fa *tptrp -is not -.Dv NULL . -.\" -.Sh DIAGNOSTICS -.Fn inet6_option_init -and -.Fn inet6_option_append -return -.Li 0 -on success or -.Li -1 -on an error. -.Pp -.Fn inet6_option_alloc -returns -.Dv NULL on an error. -.Pp -On errors, -.Fn inet6_option_next -and -.Fn inet6_option_find -return -.Li -1 -setting -.Fa *tptrp -to non -.Dv NULL -value. -.\" -.Sh EXAMPLES -RFC2292 gives comprehensive examples in chapter 6. -.\" -.Sh SEE ALSO -.Rs -.%A W. Stevens -.%A M. Thomas -.%T "Advanced Sockets API for IPv6" -.%N RFC2292 -.%D February 1998 -.Re -.Rs -.%A S. Deering -.%A R. Hinden -.%T "Internet Protocol, Version 6 (IPv6) Specification" -.%N RFC2460 -.%D December 1998 -.Re -.\" -.Sh HISTORY -The implementation first appeared in KAME advanced networking kit. -.\" -.Sh STANDARDS -The functions -are documented in -.Dq Advanced Sockets API for IPv6 -.Pq RFC2292 . -.\" -.Sh BUGS -The text was shamelessly copied from RFC2292. diff --git a/lib/libc/net/inet6_rthdr_space.3 b/lib/libc/net/inet6_rthdr_space.3 deleted file mode 100644 index 5f0845e..0000000 --- a/lib/libc/net/inet6_rthdr_space.3 +++ /dev/null @@ -1,327 +0,0 @@ -.\" Copyright (c) 1983, 1987, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" $Id: inet6_rthdr_space.3,v 1.5 2000/02/05 13:19:07 jinmei Exp $ -.\" $FreeBSD$ -.\" -.Dd December 10, 1999 -.Dt INET6_OPTION_SPACE 3 -.Os KAME -.\" -.Sh NAME -.Nm inet6_rthdr_space , -.Nm inet6_rthdr_init , -.Nm inet6_rthdr_add , -.Nm inet6_rthdr_lasthop , -.Nm inet6_rthdr_reversoe , -.Nm inet6_rthdr_segments , -.Nm inet6_rthdr_getaddr , -.Nm inet6_rthdr_getflags -.Nd IPv6 Routing Header Options manipulation -.\" -.Sh SYNOPSIS -.Fd #include <sys/types.h> -.Fd #include <netinet/in.h> -.Ft size_t -.Fn inet6_rthdr_space "int type" "int segments" -.Ft "struct cmsghdr *" -.Fn inet6_rthdr_init "void *bp" "int type" -.Ft int -.Fn inet6_rthdr_add "struct cmsghdr *cmsg" "const struct in6_addr *addr" "unsigned int flags" -.Ft int -.Fn inet6_rthdr_lasthop "struct cmsghdr *cmsg" "unsigned int flags" -.Ft int -.Fn inet6_rthdr_reverse "const struct cmsghdr *in" "struct cmsghdr *out" -.Ft int -.Fn inet6_rthdr_segments "const struct cmsghdr *cmsg" -.Ft "struct in6_addr *" -.Fn inet6_rthdr_getaddr "struct cmsghdr *cmsg" "int index" -.Ft int -.Fn inet6_rthdr_getflags "const struct cmsghdr *cmsg" "int index" -.\" -.Sh DESCRIPTION -RFC2292 IPv6 advanced API defines eight -functions that the application calls to build and examine a Routing -header. Four functions build a Routing header: -.Bl -hang -.It Fn inet6_rthdr_space -return #bytes required for ancillary data -.It Fn inet6_rthdr_init -initialize ancillary data for Routing header -.It Fn inet6_rthdr_add -add IPv6 address & flags to Routing header -.It Fn inet6_rthdr_lasthop -specify the flags for the final hop -.El -.Pp -Four functions deal with a returned Routing header: -.Bl -hang -.It Fn inet6_rthdr_reverse -reverse a Routing header -.It Fn inet6_rthdr_segments -return #segments in a Routing header -.It Fn inet6_rthdr_getaddr -fetch one address from a Routing header -.It Fn inet6_rthdr_getflags -fetch one flag from a Routing header -.El -.Pp -The function prototypes for these functions are all in the -.Aq Li netinet/in.h -header. -.\" -.Ss inet6_rthdr_space -This function returns the number of bytes required to hold a Routing -header of the specified -.Fa type -containing the specified number of -.Fa segments -.Pq addresses . -For an IPv6 Type 0 Routing header, the number -of segments must be between 1 and 23, inclusive. The return value -includes the size of the cmsghdr structure that precedes the Routing -header, and any required padding. -.Pp -If the return value is 0, then either the type of the Routing header -is not supported by this implementation or the number of segments is -invalid for this type of Routing header. -.Pp -Note: This function returns the size but does not allocate the space -required for the ancillary data. -This allows an application to -allocate a larger buffer, if other ancillary data objects are -desired, since all the ancillary data objects must be specified to -.Xr sendmsg 2 -as a single -.Li msg_control -buffer. -.\" -.Ss inet6_rthdr_init -This function initializes the buffer pointed to by -.Fa bp -to contain a -.Li cmsghdr -structure followed by a Routing header of the specified -.Fa type . -The -.Li cmsg_len -member of the -.Li cmsghdr -structure is initialized to the -size of the structure plus the amount of space required by the -Routing header. -The -.Li cmsg_level -and -.Li cmsg_type -members are also initialized as required. -.Pp -The caller must allocate the buffer and its size can be determined by -calling -.Fn inet6_rthdr_space . -.Pp -Upon success the return value is the pointer to the -.Li cmsghdr -structure, and this is then used as the first argument to the next -two functions. -Upon an error the return value is -.Dv NULL . -.\" -.Ss inet6_rthdr_add -This function adds the address pointed to by -.Fa addr -to the end of the -Routing header being constructed and sets the type of this hop to the -value of -.Fa flags . -For an IPv6 Type 0 Routing header, -.Fa flags -must be -either -.Dv IPV6_RTHDR_LOOSE -or -.Dv IPV6_RTHDR_STRICT . -.Pp -If successful, the -.Li cmsg_len -member of the -.Li cmsghdr -structure is -updated to account for the new address in the Routing header and the -return value of the function is 0. -Upon an error the return value of -the function is -1. -.\" -.Ss inet6_rthdr_lasthop -This function specifies the Strict/Loose flag for the final hop of a -Routing header. -For an IPv6 Type 0 Routing header, -.Fa flags -must be either -.Dv IPV6_RTHDR_LOOSE -or -.Dv IPV6_RTHDR_STRICT . -.Pp -The return value of the function is 0 upon success, or -1 upon an error. -.Pp -Notice that a Routing header specifying -.Li N -intermediate nodes requires -.Li N+1 -Strict/Loose flags. -This requires -.Li N -calls to -.Fn inet6_rthdr_add -followed by one call to -.Fn inet6_rthdr_lasthop . -.\" -.Ss inet6_rthdr_reverse -This function is not yet implemented. -When implemented, this should behave as follows. -.Pp -This function takes a Routing header that was received as ancillary -data -.Po -pointed to by the first argument, -.Fa in -.Pc -and writes a new Routing -header that sends datagrams along the reverse of that route. -Both -arguments are allowed to point to the same buffer -.Pq that is, the reversal can occur in place . -.Pp -The return value of the function is 0 on success, or -1 upon an -error. -.\" -.Ss inet6_rthdr_segments -This function returns the number of segments -.Pq addresses -contained in -the Routing header described by -.Fa cmsg . -On success the return value is -between 1 and 23, inclusive. -The return value of the function is -1 upon an error. -.\" -.Ss inet6_rthdr_getaddr -This function returns a pointer to the IPv6 address specified by -.Fa index -.Po -which must have a value between 1 and the value returned by -.Fn inet6_rthdr_segments -.Pc -in the Routing header described by -.Fa cmsg . -An -application should first call -.Fn inet6_rthdr_segments -to obtain the number of segments in the Routing header. -.Pp -Upon an error the return value of the function is -.Dv NULL . -.\" -.Ss inet6_rthdr_getflags -This function returns the flags value specified by -.Fa index -.Po -which must -have a value between 0 and the value returned by -.Fn inet6_rthdr_segments -.Pc -in the Routing header described by -.Fa cmsg . -For an IPv6 Type 0 Routing header the return value will be either -.Dv IPV6_RTHDR_LOOSE -or -.Dv IPV6_RTHDR_STRICT . -.Pp -Upon an error the return value of the function is -1. -.Pp -Note: Addresses are indexed starting at 1, and flags starting at 0, -to maintain consistency with the terminology and figures in RFC2460. -.\" -.Sh DIAGNOSTICS -.Fn inet6_rthdr_space -returns 0 on errors. -.Pp -.Fn inet6_rthdr_add , -.Fn inet6_rthdr_lasthop -and -.Fn inet6_rthdr_reverse -return 0 on success, and returns -1 on error. -.Pp -.Fn inet6_rthdr_init -and -.Fn inet6_rthdr_getaddr -return -.Dv NULL -on error. -.Pp -.Fn inet6_rthdr_segments -and -.Fn inet6_rthdr_getflags -return -1 on error. -.\" -.Sh EXAMPLES -RFC2292 gives comprehensive examples in chapter 8. -.\" -.Sh SEE ALSO -.Rs -.%A W. Stevens -.%A M. Thomas -.%T "Advanced Sockets API for IPv6" -.%N RFC2292 -.%D February 1998 -.Re -.Rs -.%A S. Deering -.%A R. Hinden -.%T "Internet Protocol, Version 6 (IPv6) Specification" -.%N RFC2460 -.%D December 1998 -.Re -.\" -.Sh HISTORY -The implementation first appeared in KAME advanced networking kit. -.\" -.Sh STANDARDS -The functions -are documented in -.Dq Advanced Sockets API for IPv6 -.Pq RFC2292 . -.\" -.Sh BUGS -The text was shamelessly copied from RFC2292. -.Pp -.Fn inet6_rthdr_reverse -is not implemented yet. diff --git a/lib/libc/net/inet_addr.c b/lib/libc/net/inet_addr.c deleted file mode 100644 index 312c39b..0000000 --- a/lib/libc/net/inet_addr.c +++ /dev/null @@ -1,197 +0,0 @@ -/* - * ++Copyright++ 1983, 1990, 1993 - * - - * Copyright (c) 1983, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - - * Portions Copyright (c) 1993 by Digital Equipment Corporation. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies, and that - * the name of Digital Equipment Corporation not be used in advertising or - * publicity pertaining to distribution of the document or software without - * specific, written prior permission. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT - * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - * - - * --Copyright-- - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)inet_addr.c 8.1 (Berkeley) 6/17/93"; -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> - -#include <netinet/in.h> -#include <arpa/inet.h> - -#include <ctype.h> -#include <errno.h> -#include <string.h> -#include <stdlib.h> - -/* - * ASCII internet address interpretation routine. - * The value returned is in network order. - */ -u_long /* XXX should be struct in_addr :( */ -inet_addr(cp) - register const char *cp; -{ - struct in_addr val; - - if (inet_aton(cp, &val)) - return (val.s_addr); - return (INADDR_NONE); -} - -/* - * Check whether "cp" is a valid ASCII representation - * of an Internet address and convert to a binary address. - * Returns 1 if the address is valid, 0 if not. - * This replaces inet_addr, the return value from which - * cannot distinguish between failure and a local broadcast address. - */ -int -inet_aton(cp, addr) - register const char *cp; - struct in_addr *addr; -{ - u_long parts[4]; - u_long val; - char *c; - char *endptr; - int gotend, n; - - c = (char *)cp; - n = 0; - /* - * Run through the string, grabbing numbers until - * the end of the string, or some error - */ - gotend = 0; - while (!gotend) { - errno = 0; - val = strtoul(c, &endptr, 0); - - if (errno == ERANGE) /* Fail completely if it overflowed. */ - return (0); - - /* - * If the whole string is invalid, endptr will equal - * c.. this way we can make sure someone hasn't - * gone '.12' or something which would get past - * the next check. - */ - if (endptr == c) - return (0); - parts[n] = val; - c = endptr; - - /* Check the next character past the previous number's end */ - switch (*c) { - case '.' : - /* Make sure we only do 3 dots .. */ - if (n == 3) /* Whoops. Quit. */ - return (0); - n++; - c++; - break; - - case '\0': - gotend = 1; - break; - - default: - if (isspace((unsigned char)*c)) { - gotend = 1; - break; - } else - return (0); /* Invalid character, so fail */ - } - - } - - /* - * Concoct the address according to - * the number of parts specified. - */ - - switch (n) { - case 0: /* a -- 32 bits */ - /* - * Nothing is necessary here. Overflow checking was - * already done in strtoul(). - */ - break; - case 1: /* a.b -- 8.24 bits */ - if (val > 0xffffff || parts[0] > 0xff) - return (0); - val |= parts[0] << 24; - break; - - case 2: /* a.b.c -- 8.8.16 bits */ - if (val > 0xffff || parts[0] > 0xff || parts[1] > 0xff) - return (0); - val |= (parts[0] << 24) | (parts[1] << 16); - break; - - case 3: /* a.b.c.d -- 8.8.8.8 bits */ - if (val > 0xff || parts[0] > 0xff || parts[1] > 0xff || - parts[2] > 0xff) - return (0); - val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8); - break; - } - - if (addr != NULL) - addr->s_addr = htonl(val); - return (1); -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <arpa/inet.h>. - */ -#undef inet_addr -__weak_reference(__inet_addr, inet_addr); -#undef inet_aton -__weak_reference(__inet_aton, inet_aton); diff --git a/lib/libc/net/inet_lnaof.c b/lib/libc/net/inet_lnaof.c deleted file mode 100644 index 99024d9..0000000 --- a/lib/libc/net/inet_lnaof.c +++ /dev/null @@ -1,66 +0,0 @@ -/* - * Copyright (c) 1983, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)inet_lnaof.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> -#include <netinet/in.h> -#include <arpa/inet.h> - -/* - * Return the local network address portion of an - * internet address; handles class a/b/c network - * number formats. - */ -u_long -inet_lnaof(in) - struct in_addr in; -{ - register u_long i = ntohl(in.s_addr); - - if (IN_CLASSA(i)) - return ((i)&IN_CLASSA_HOST); - else if (IN_CLASSB(i)) - return ((i)&IN_CLASSB_HOST); - else - return ((i)&IN_CLASSC_HOST); -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <arpa/inet.h>. - */ -#undef inet_lnaof -__weak_reference(__inet_lnaof, inet_lnaof); diff --git a/lib/libc/net/inet_makeaddr.c b/lib/libc/net/inet_makeaddr.c deleted file mode 100644 index 8af7770..0000000 --- a/lib/libc/net/inet_makeaddr.c +++ /dev/null @@ -1,69 +0,0 @@ -/* - * Copyright (c) 1983, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)inet_makeaddr.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> -#include <netinet/in.h> -#include <arpa/inet.h> - -/* - * Formulate an Internet address from network + host. Used in - * building addresses stored in the ifnet structure. - */ -struct in_addr -inet_makeaddr(net, host) - u_long net, host; -{ - u_long addr; - - if (net < 128) - addr = (net << IN_CLASSA_NSHIFT) | (host & IN_CLASSA_HOST); - else if (net < 65536) - addr = (net << IN_CLASSB_NSHIFT) | (host & IN_CLASSB_HOST); - else if (net < 16777216L) - addr = (net << IN_CLASSC_NSHIFT) | (host & IN_CLASSC_HOST); - else - addr = net | host; - addr = htonl(addr); - return (*(struct in_addr *)&addr); -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <arpa/inet.h>. - */ -#undef inet_makeaddr -__weak_reference(__inet_makeaddr, inet_makeaddr); diff --git a/lib/libc/net/inet_net_ntop.c b/lib/libc/net/inet_net_ntop.c deleted file mode 100644 index 4b30cb6..0000000 --- a/lib/libc/net/inet_net_ntop.c +++ /dev/null @@ -1,147 +0,0 @@ -/* - * Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static const char orig_rcsid[] = "From Id: inet_net_ntop.c,v 8.2 1996/08/08 06:54:44 vixie Exp"; -static const char rcsid[] = "$FreeBSD$"; -#endif - -#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> - -#include <errno.h> -#include <stdio.h> -#include <string.h> -#include <stdlib.h> - -#ifdef SPRINTF_CHAR -# define SPRINTF(x) strlen(sprintf/**/x) -#else -# define SPRINTF(x) ((size_t)sprintf x) -#endif - -static char * inet_net_ntop_ipv4 __P((const u_char *src, int bits, - char *dst, size_t size)); - -/* - * char * - * inet_net_ntop(af, src, bits, dst, size) - * convert network number from network to presentation format. - * generates CIDR style result always. - * return: - * pointer to dst, or NULL if an error occurred (check errno). - * author: - * Paul Vixie (ISC), July 1996 - */ -char * -inet_net_ntop(af, src, bits, dst, size) - int af; - const void *src; - int bits; - char *dst; - size_t size; -{ - switch (af) { - case AF_INET: - return (inet_net_ntop_ipv4(src, bits, dst, size)); - default: - errno = EAFNOSUPPORT; - return (NULL); - } -} - -/* - * static char * - * inet_net_ntop_ipv4(src, bits, dst, size) - * convert IPv4 network number from network to presentation format. - * generates CIDR style result always. - * return: - * pointer to dst, or NULL if an error occurred (check errno). - * note: - * network byte order assumed. this means 192.5.5.240/28 has - * 0x11110000 in its fourth octet. - * author: - * Paul Vixie (ISC), July 1996 - */ -static char * -inet_net_ntop_ipv4(src, bits, dst, size) - const u_char *src; - int bits; - char *dst; - size_t size; -{ - char *odst = dst; - char *t; - u_int m; - int b; - - if (bits < 0 || bits > 32) { - errno = EINVAL; - return (NULL); - } - if (bits == 0) { - if (size < sizeof "0") - goto emsgsize; - *dst++ = '0'; - *dst = '\0'; - } - - /* Format whole octets. */ - for (b = bits / 8; b > 0; b--) { - if (size < sizeof "255.") - goto emsgsize; - t = dst; - dst += SPRINTF((dst, "%u", *src++)); - if (b > 1) { - *dst++ = '.'; - *dst = '\0'; - } - size -= (size_t)(dst - t); - } - - /* Format partial octet. */ - b = bits % 8; - if (b > 0) { - if (size < sizeof ".255") - goto emsgsize; - t = dst; - if (dst != odst) - *dst++ = '.'; - m = ((1 << b) - 1) << (8 - b); - dst += SPRINTF((dst, "%u", *src & m)); - size -= (size_t)(dst - t); - } - - /* Format CIDR /width. */ - if (size < sizeof "/32") - goto emsgsize; - dst += SPRINTF((dst, "/%u", bits)); - return (odst); - - emsgsize: - errno = EMSGSIZE; - return (NULL); -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <arpa/inet.h>. - */ -#undef inet_net_ntop -__weak_reference(__inet_net_ntop, inet_net_ntop); diff --git a/lib/libc/net/inet_net_pton.c b/lib/libc/net/inet_net_pton.c deleted file mode 100644 index 04a45d4..0000000 --- a/lib/libc/net/inet_net_pton.c +++ /dev/null @@ -1,214 +0,0 @@ -/* - * Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static const char orig_rcsid[] = "From Id: inet_net_pton.c,v 1.8 1996/11/21 10:28:12 vixie Exp $"; -static const char rcsid[] = "$FreeBSD$"; -#endif - -#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> - -#include <assert.h> -#include <ctype.h> -#include <errno.h> -#include <stdio.h> -#include <string.h> -#include <stdlib.h> - -#ifdef SPRINTF_CHAR -# define SPRINTF(x) strlen(sprintf/**/x) -#else -# define SPRINTF(x) ((size_t)sprintf x) -#endif - -static int inet_net_pton_ipv4 __P((const char *src, u_char *dst, - size_t size)); - -/* - * static int - * inet_net_pton(af, src, dst, size) - * convert network number from presentation to network format. - * accepts hex octets, hex strings, decimal octets, and /CIDR. - * "size" is in bytes and describes "dst". - * return: - * number of bits, either imputed classfully or specified with /CIDR, - * or -1 if some failure occurred (check errno). ENOENT means it was - * not a valid network specification. - * author: - * Paul Vixie (ISC), June 1996 - */ -int -inet_net_pton(af, src, dst, size) - int af; - const char *src; - void *dst; - size_t size; -{ - switch (af) { - case AF_INET: - return (inet_net_pton_ipv4(src, dst, size)); - default: - errno = EAFNOSUPPORT; - return (-1); - } -} - -/* - * static int - * inet_net_pton_ipv4(src, dst, size) - * convert IPv4 network number from presentation to network format. - * accepts hex octets, hex strings, decimal octets, and /CIDR. - * "size" is in bytes and describes "dst". - * return: - * number of bits, either imputed classfully or specified with /CIDR, - * or -1 if some failure occurred (check errno). ENOENT means it was - * not an IPv4 network specification. - * note: - * network byte order assumed. this means 192.5.5.240/28 has - * 0x11110000 in its fourth octet. - * author: - * Paul Vixie (ISC), June 1996 - */ -static int -inet_net_pton_ipv4(src, dst, size) - const char *src; - u_char *dst; - size_t size; -{ - static const char - xdigits[] = "0123456789abcdef", - digits[] = "0123456789"; - int n, ch, tmp, dirty, bits; - const u_char *odst = dst; - - ch = *src++; - if (ch == '0' && (src[0] == 'x' || src[0] == 'X') - && isascii(src[1]) && isxdigit(src[1])) { - /* Hexadecimal: Eat nybble string. */ - if (size <= 0) - goto emsgsize; - *dst = 0, dirty = 0; - src++; /* skip x or X. */ - while ((ch = *src++) != '\0' && - isascii(ch) && isxdigit(ch)) { - if (isupper(ch)) - ch = tolower(ch); - n = strchr(xdigits, ch) - xdigits; - assert(n >= 0 && n <= 15); - *dst |= n; - if (!dirty++) - *dst <<= 4; - else if (size-- > 0) - *++dst = 0, dirty = 0; - else - goto emsgsize; - } - if (dirty) - size--; - } else if (isascii(ch) && isdigit(ch)) { - /* Decimal: eat dotted digit string. */ - for (;;) { - tmp = 0; - do { - n = strchr(digits, ch) - digits; - assert(n >= 0 && n <= 9); - tmp *= 10; - tmp += n; - if (tmp > 255) - goto enoent; - } while ((ch = *src++) != '\0' && - isascii(ch) && isdigit(ch)); - if (size-- <= 0) - goto emsgsize; - *dst++ = (u_char) tmp; - if (ch == '\0' || ch == '/') - break; - if (ch != '.') - goto enoent; - ch = *src++; - if (!isascii(ch) || !isdigit(ch)) - goto enoent; - } - } else - goto enoent; - - bits = -1; - if (ch == '/' && isascii(src[0]) && isdigit(src[0]) && dst > odst) { - /* CIDR width specifier. Nothing can follow it. */ - ch = *src++; /* Skip over the /. */ - bits = 0; - do { - n = strchr(digits, ch) - digits; - assert(n >= 0 && n <= 9); - bits *= 10; - bits += n; - } while ((ch = *src++) != '\0' && isascii(ch) && isdigit(ch)); - if (ch != '\0') - goto enoent; - if (bits > 32) - goto emsgsize; - } - - /* Firey death and destruction unless we prefetched EOS. */ - if (ch != '\0') - goto enoent; - - /* If nothing was written to the destination, we found no address. */ - if (dst == odst) - goto enoent; - /* If no CIDR spec was given, infer width from net class. */ - if (bits == -1) { - if (*odst >= 240) /* Class E */ - bits = 32; - else if (*odst >= 224) /* Class D */ - bits = 4; - else if (*odst >= 192) /* Class C */ - bits = 24; - else if (*odst >= 128) /* Class B */ - bits = 16; - else /* Class A */ - bits = 8; - /* If imputed mask is narrower than specified octets, widen. */ - if (bits >= 8 && bits < ((dst - odst) * 8)) - bits = (dst - odst) * 8; - } - /* Extend network to cover the actual mask. */ - while (bits > ((dst - odst) * 8)) { - if (size-- <= 0) - goto emsgsize; - *dst++ = '\0'; - } - return (bits); - - enoent: - errno = ENOENT; - return (-1); - - emsgsize: - errno = EMSGSIZE; - return (-1); -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <arpa/inet.h>. - */ -#undef inet_net_pton -__weak_reference(__inet_net_pton, inet_net_pton); diff --git a/lib/libc/net/inet_neta.c b/lib/libc/net/inet_neta.c deleted file mode 100644 index 2b8a84c..0000000 --- a/lib/libc/net/inet_neta.c +++ /dev/null @@ -1,91 +0,0 @@ -/* - * Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static const char orig_rcsid[] = "From Id: inet_neta.c,v 8.2 1996/08/08 06:54:44 vixie Exp"; -static const char rcsid[] = "$FreeBSD$"; -#endif - -#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> - -#include <errno.h> -#include <stdio.h> -#include <string.h> - -#ifdef SPRINTF_CHAR -# define SPRINTF(x) strlen(sprintf/**/x) -#else -# define SPRINTF(x) ((size_t)sprintf x) -#endif - -/* - * char * - * inet_neta(src, dst, size) - * format a u_long network number into presentation format. - * return: - * pointer to dst, or NULL if an error occurred (check errno). - * note: - * format of ``src'' is as for inet_network(). - * author: - * Paul Vixie (ISC), July 1996 - */ -char * -inet_neta(src, dst, size) - u_long src; - char *dst; - size_t size; -{ - char *odst = dst; - char *tp; - - while (src & 0xffffffff) { - u_char b = (src & 0xff000000) >> 24; - - src <<= 8; - if (b) { - if (size < sizeof "255.") - goto emsgsize; - tp = dst; - dst += SPRINTF((dst, "%u", b)); - if (src != 0L) { - *dst++ = '.'; - *dst = '\0'; - } - size -= (size_t)(dst - tp); - } - } - if (dst == odst) { - if (size < sizeof "0.0.0.0") - goto emsgsize; - strcpy(dst, "0.0.0.0"); - } - return (odst); - - emsgsize: - errno = EMSGSIZE; - return (NULL); -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <arpa/inet.h>. - */ -#undef inet_neta -__weak_reference(__inet_neta, inet_neta); diff --git a/lib/libc/net/inet_netof.c b/lib/libc/net/inet_netof.c deleted file mode 100644 index 37063f7..0000000 --- a/lib/libc/net/inet_netof.c +++ /dev/null @@ -1,65 +0,0 @@ -/* - * Copyright (c) 1983, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)inet_netof.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> -#include <netinet/in.h> -#include <arpa/inet.h> - -/* - * Return the network number from an internet - * address; handles class a/b/c network #'s. - */ -u_long -inet_netof(in) - struct in_addr in; -{ - register u_long i = ntohl(in.s_addr); - - if (IN_CLASSA(i)) - return (((i)&IN_CLASSA_NET) >> IN_CLASSA_NSHIFT); - else if (IN_CLASSB(i)) - return (((i)&IN_CLASSB_NET) >> IN_CLASSB_NSHIFT); - else - return (((i)&IN_CLASSC_NET) >> IN_CLASSC_NSHIFT); -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <arpa/inet.h>. - */ -#undef inet_netof -__weak_reference(__inet_netof, inet_netof); diff --git a/lib/libc/net/inet_network.c b/lib/libc/net/inet_network.c deleted file mode 100644 index e44257a..0000000 --- a/lib/libc/net/inet_network.c +++ /dev/null @@ -1,99 +0,0 @@ -/* - * Copyright (c) 1983, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)inet_network.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <ctype.h> - -/* - * Internet network address interpretation routine. - * The library routines call this routine to interpret - * network numbers. - */ -u_long -inet_network(cp) - register const char *cp; -{ - register u_long val, base, n, i; - register char c; - u_long parts[4], *pp = parts; - -again: - val = 0; base = 10; - if (*cp == '0') - base = 8, cp++; - if (*cp == 'x' || *cp == 'X') - base = 16, cp++; - while ((c = *cp) != 0) { - if (isdigit((unsigned char)c)) { - val = (val * base) + (c - '0'); - cp++; - continue; - } - if (base == 16 && isxdigit((unsigned char)c)) { - val = (val << 4) + (c + 10 - (islower((unsigned char)c) ? 'a' : 'A')); - cp++; - continue; - } - break; - } - if (*cp == '.') { - if (pp >= parts + 3) - return (INADDR_NONE); - *pp++ = val, cp++; - goto again; - } - if (*cp && !isspace((unsigned char)*cp)) - return (INADDR_NONE); - *pp++ = val; - n = pp - parts; - for (val = 0, i = 0; i < n; i++) { - val <<= 8; - val |= parts[i] & 0xff; - } - return (val); -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <arpa/inet.h>. - */ -#undef inet_network -__weak_reference(__inet_network, inet_network); diff --git a/lib/libc/net/inet_ntoa.c b/lib/libc/net/inet_ntoa.c deleted file mode 100644 index c210545..0000000 --- a/lib/libc/net/inet_ntoa.c +++ /dev/null @@ -1,64 +0,0 @@ -/* - * Copyright (c) 1983, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)inet_ntoa.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <stdio.h> - -/* - * Convert network-format internet address - * to base 256 d.d.d.d representation. - */ -char * -inet_ntoa(in) - struct in_addr in; -{ - static char ret[18]; - - strcpy(ret, "[inet_ntoa error]"); - (void) inet_ntop(AF_INET, &in, ret, sizeof ret); - return (ret); -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <arpa/inet.h>. - */ -#undef inet_ntoa -__weak_reference(__inet_ntoa, inet_ntoa); diff --git a/lib/libc/net/inet_ntop.c b/lib/libc/net/inet_ntop.c deleted file mode 100644 index 0b9449b..0000000 --- a/lib/libc/net/inet_ntop.c +++ /dev/null @@ -1,198 +0,0 @@ -/* Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> -#include <errno.h> -#include <stdio.h> -#include <string.h> - -#define SPRINTF(x) ((size_t)sprintf x) - -/* - * WARNING: Don't even consider trying to compile this on a system where - * sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX. - */ - -static const char *inet_ntop4 __P((const u_char *src, char *dst, size_t size)); -static const char *inet_ntop6 __P((const u_char *src, char *dst, size_t size)); - -/* char * - * inet_ntop(af, src, dst, size) - * convert a network format address to presentation format. - * return: - * pointer to presentation format address (`dst'), or NULL (see errno). - * author: - * Paul Vixie, 1996. - */ -const char * -inet_ntop(af, src, dst, size) - int af; - const void *src; - char *dst; - size_t size; -{ - switch (af) { - case AF_INET: - return (inet_ntop4(src, dst, size)); - case AF_INET6: - return (inet_ntop6(src, dst, size)); - default: - errno = EAFNOSUPPORT; - return (NULL); - } - /* NOTREACHED */ -} - -/* const char * - * inet_ntop4(src, dst, size) - * format an IPv4 address, more or less like inet_ntoa() - * return: - * `dst' (as a const) - * notes: - * (1) uses no statics - * (2) takes a u_char* not an in_addr as input - * author: - * Paul Vixie, 1996. - */ -static const char * -inet_ntop4(src, dst, size) - const u_char *src; - char *dst; - size_t size; -{ - static const char fmt[] = "%u.%u.%u.%u"; - char tmp[sizeof "255.255.255.255"]; - - if (SPRINTF((tmp, fmt, src[0], src[1], src[2], src[3])) > size) { - errno = ENOSPC; - return (NULL); - } - strcpy(dst, tmp); - return (dst); -} - -/* const char * - * inet_ntop6(src, dst, size) - * convert IPv6 binary address into presentation (printable) format - * author: - * Paul Vixie, 1996. - */ -static const char * -inet_ntop6(src, dst, size) - const u_char *src; - char *dst; - size_t size; -{ - /* - * Note that int32_t and int16_t need only be "at least" large enough - * to contain a value of the specified size. On some systems, like - * Crays, there is no such thing as an integer variable with 16 bits. - * Keep this in mind if you think this function should have been coded - * to use pointer overlays. All the world's not a VAX. - */ - char tmp[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"], *tp; - struct { int base, len; } best, cur; - u_int words[NS_IN6ADDRSZ / NS_INT16SZ]; - int i; - - /* - * Preprocess: - * Copy the input (bytewise) array into a wordwise array. - * Find the longest run of 0x00's in src[] for :: shorthanding. - */ - memset(words, '\0', sizeof words); - for (i = 0; i < NS_IN6ADDRSZ; i++) - words[i / 2] |= (src[i] << ((1 - (i % 2)) << 3)); - best.base = -1; - cur.base = -1; - for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++) { - if (words[i] == 0) { - if (cur.base == -1) - cur.base = i, cur.len = 1; - else - cur.len++; - } else { - if (cur.base != -1) { - if (best.base == -1 || cur.len > best.len) - best = cur; - cur.base = -1; - } - } - } - if (cur.base != -1) { - if (best.base == -1 || cur.len > best.len) - best = cur; - } - if (best.base != -1 && best.len < 2) - best.base = -1; - - /* - * Format the result. - */ - tp = tmp; - for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++) { - /* Are we inside the best run of 0x00's? */ - if (best.base != -1 && i >= best.base && - i < (best.base + best.len)) { - if (i == best.base) - *tp++ = ':'; - continue; - } - /* Are we following an initial run of 0x00s or any real hex? */ - if (i != 0) - *tp++ = ':'; - /* Is this address an encapsulated IPv4? */ - if (i == 6 && best.base == 0 && - (best.len == 6 || (best.len == 5 && words[5] == 0xffff))) { - if (!inet_ntop4(src+12, tp, sizeof tmp - (tp - tmp))) - return (NULL); - tp += strlen(tp); - break; - } - tp += SPRINTF((tp, "%x", words[i])); - } - /* Was it a trailing run of 0x00's? */ - if (best.base != -1 && (best.base + best.len) == - (NS_IN6ADDRSZ / NS_INT16SZ)) - *tp++ = ':'; - *tp++ = '\0'; - - /* - * Check for overflow, copy, and we're done. - */ - if ((size_t)(tp - tmp) > size) { - errno = ENOSPC; - return (NULL); - } - strcpy(dst, tmp); - return (dst); -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <arpa/inet.h>. - */ -#undef inet_ntop -__weak_reference(__inet_ntop, inet_ntop); diff --git a/lib/libc/net/inet_pton.c b/lib/libc/net/inet_pton.c deleted file mode 100644 index 488ac7f..0000000 --- a/lib/libc/net/inet_pton.c +++ /dev/null @@ -1,221 +0,0 @@ -/* Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> -#include <string.h> -#include <errno.h> - -/* - * WARNING: Don't even consider trying to compile this on a system where - * sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX. - */ - -static int inet_pton4 __P((const char *src, u_char *dst)); -static int inet_pton6 __P((const char *src, u_char *dst)); - -/* int - * inet_pton(af, src, dst) - * convert from presentation format (which usually means ASCII printable) - * to network format (which is usually some kind of binary format). - * return: - * 1 if the address was valid for the specified address family - * 0 if the address wasn't valid (`dst' is untouched in this case) - * -1 if some other error occurred (`dst' is untouched in this case, too) - * author: - * Paul Vixie, 1996. - */ -int -inet_pton(af, src, dst) - int af; - const char *src; - void *dst; -{ - switch (af) { - case AF_INET: - return (inet_pton4(src, dst)); - case AF_INET6: - return (inet_pton6(src, dst)); - default: - errno = EAFNOSUPPORT; - return (-1); - } - /* NOTREACHED */ -} - -/* int - * inet_pton4(src, dst) - * like inet_aton() but without all the hexadecimal and shorthand. - * return: - * 1 if `src' is a valid dotted quad, else 0. - * notice: - * does not touch `dst' unless it's returning 1. - * author: - * Paul Vixie, 1996. - */ -static int -inet_pton4(src, dst) - const char *src; - u_char *dst; -{ - static const char digits[] = "0123456789"; - int saw_digit, octets, ch; - u_char tmp[NS_INADDRSZ], *tp; - - saw_digit = 0; - octets = 0; - *(tp = tmp) = 0; - while ((ch = *src++) != '\0') { - const char *pch; - - if ((pch = strchr(digits, ch)) != NULL) { - u_int new = *tp * 10 + (pch - digits); - - if (new > 255) - return (0); - *tp = new; - if (! saw_digit) { - if (++octets > 4) - return (0); - saw_digit = 1; - } - } else if (ch == '.' && saw_digit) { - if (octets == 4) - return (0); - *++tp = 0; - saw_digit = 0; - } else - return (0); - } - if (octets < 4) - return (0); - - memcpy(dst, tmp, NS_INADDRSZ); - return (1); -} - -/* int - * inet_pton6(src, dst) - * convert presentation level address to network order binary form. - * return: - * 1 if `src' is a valid [RFC1884 2.2] address, else 0. - * notice: - * (1) does not touch `dst' unless it's returning 1. - * (2) :: in a full address is silently ignored. - * credit: - * inspired by Mark Andrews. - * author: - * Paul Vixie, 1996. - */ -static int -inet_pton6(src, dst) - const char *src; - u_char *dst; -{ - static const char xdigits_l[] = "0123456789abcdef", - xdigits_u[] = "0123456789ABCDEF"; - u_char tmp[NS_IN6ADDRSZ], *tp, *endp, *colonp; - const char *xdigits, *curtok; - int ch, saw_xdigit; - u_int val; - - memset((tp = tmp), '\0', NS_IN6ADDRSZ); - endp = tp + NS_IN6ADDRSZ; - colonp = NULL; - /* Leading :: requires some special handling. */ - if (*src == ':') - if (*++src != ':') - return (0); - curtok = src; - saw_xdigit = 0; - val = 0; - while ((ch = *src++) != '\0') { - const char *pch; - - if ((pch = strchr((xdigits = xdigits_l), ch)) == NULL) - pch = strchr((xdigits = xdigits_u), ch); - if (pch != NULL) { - val <<= 4; - val |= (pch - xdigits); - if (val > 0xffff) - return (0); - saw_xdigit = 1; - continue; - } - if (ch == ':') { - curtok = src; - if (!saw_xdigit) { - if (colonp) - return (0); - colonp = tp; - continue; - } - if (tp + NS_INT16SZ > endp) - return (0); - *tp++ = (u_char) (val >> 8) & 0xff; - *tp++ = (u_char) val & 0xff; - saw_xdigit = 0; - val = 0; - continue; - } - if (ch == '.' && ((tp + NS_INADDRSZ) <= endp) && - inet_pton4(curtok, tp) > 0) { - tp += NS_INADDRSZ; - saw_xdigit = 0; - break; /* '\0' was seen by inet_pton4(). */ - } - return (0); - } - if (saw_xdigit) { - if (tp + NS_INT16SZ > endp) - return (0); - *tp++ = (u_char) (val >> 8) & 0xff; - *tp++ = (u_char) val & 0xff; - } - if (colonp != NULL) { - /* - * Since some memmove()'s erroneously fail to handle - * overlapping regions, we'll do the shift by hand. - */ - const int n = tp - colonp; - int i; - - for (i = 1; i <= n; i++) { - endp[- i] = colonp[n - i]; - colonp[n - i] = 0; - } - tp = endp; - } - if (tp != endp) - return (0); - memcpy(dst, tmp, NS_IN6ADDRSZ); - return (1); -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <arpa/inet.h>. - */ -#undef inet_pton -__weak_reference(__inet_pton, inet_pton); diff --git a/lib/libc/net/ip6opt.c b/lib/libc/net/ip6opt.c deleted file mode 100644 index f9291b9..0000000 --- a/lib/libc/net/ip6opt.c +++ /dev/null @@ -1,386 +0,0 @@ -/* - * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <sys/param.h> -#include <sys/types.h> -#include <sys/socket.h> - -#include <netinet/in.h> -#include <netinet/ip6.h> - -#include <string.h> -#include <stdio.h> - -static int ip6optlen(u_int8_t *opt, u_int8_t *lim); -static void inet6_insert_padopt(u_char *p, int len); - -/* - * This function returns the number of bytes required to hold an option - * when it is stored as ancillary data, including the cmsghdr structure - * at the beginning, and any padding at the end (to make its size a - * multiple of 8 bytes). The argument is the size of the structure - * defining the option, which must include any pad bytes at the - * beginning (the value y in the alignment term "xn + y"), the type - * byte, the length byte, and the option data. - */ -int -inet6_option_space(nbytes) - int nbytes; -{ - nbytes += 2; /* we need space for nxt-hdr and length fields */ - return(CMSG_SPACE((nbytes + 7) & ~7)); -} - -/* - * This function is called once per ancillary data object that will - * contain either Hop-by-Hop or Destination options. It returns 0 on - * success or -1 on an error. - */ -int -inet6_option_init(bp, cmsgp, type) - void *bp; - struct cmsghdr **cmsgp; - int type; -{ - register struct cmsghdr *ch = (struct cmsghdr *)bp; - - /* argument validation */ - if (type != IPV6_HOPOPTS && type != IPV6_DSTOPTS) - return(-1); - - ch->cmsg_level = IPPROTO_IPV6; - ch->cmsg_type = type; - ch->cmsg_len = CMSG_LEN(0); - - *cmsgp = ch; - return(0); -} - -/* - * This function appends a Hop-by-Hop option or a Destination option - * into an ancillary data object that has been initialized by - * inet6_option_init(). This function returns 0 if it succeeds or -1 on - * an error. - * multx is the value x in the alignment term "xn + y" described - * earlier. It must have a value of 1, 2, 4, or 8. - * plusy is the value y in the alignment term "xn + y" described - * earlier. It must have a value between 0 and 7, inclusive. - */ -int -inet6_option_append(cmsg, typep, multx, plusy) - struct cmsghdr *cmsg; - const u_int8_t *typep; - int multx; - int plusy; -{ - int padlen, optlen, off; - register u_char *bp = (u_char *)cmsg + cmsg->cmsg_len; - struct ip6_ext *eh = (struct ip6_ext *)CMSG_DATA(cmsg); - - /* argument validation */ - if (multx != 1 && multx != 2 && multx != 4 && multx != 8) - return(-1); - if (plusy < 0 || plusy > 7) - return(-1); - if (typep[0] > 255) - return(-1); - - /* - * If this is the first option, allocate space for the - * first 2 bytes(for next header and length fields) of - * the option header. - */ - if (bp == (u_char *)eh) { - bp += 2; - cmsg->cmsg_len += 2; - } - - /* calculate pad length before the option. */ - off = bp - (u_char *)eh; - padlen = (((off % multx) + (multx - 1)) & ~(multx - 1)) - - (off % multx); - padlen += plusy; - /* insert padding */ - inet6_insert_padopt(bp, padlen); - cmsg->cmsg_len += padlen; - bp += padlen; - - /* copy the option */ - if (typep[0] == IP6OPT_PAD1) - optlen = 1; - else - optlen = typep[1] + 2; - memcpy(bp, typep, optlen); - bp += optlen; - cmsg->cmsg_len += optlen; - - /* calculate pad length after the option and insert the padding */ - off = bp - (u_char *)eh; - padlen = ((off + 7) & ~7) - off; - inet6_insert_padopt(bp, padlen); - bp += padlen; - cmsg->cmsg_len += padlen; - - /* update the length field of the ip6 option header */ - eh->ip6e_len = ((bp - (u_char *)eh) >> 3) - 1; - - return(0); -} - -/* - * This function appends a Hop-by-Hop option or a Destination option - * into an ancillary data object that has been initialized by - * inet6_option_init(). This function returns a pointer to the 8-bit - * option type field that starts the option on success, or NULL on an - * error. - * The difference between this function and inet6_option_append() is - * that the latter copies the contents of a previously built option into - * the ancillary data object while the current function returns a - * pointer to the space in the data object where the option's TLV must - * then be built by the caller. - * - */ -u_int8_t * -inet6_option_alloc(cmsg, datalen, multx, plusy) - struct cmsghdr *cmsg; - int datalen; - int multx; - int plusy; -{ - int padlen, off; - register u_int8_t *bp = (u_char *)cmsg + cmsg->cmsg_len; - u_int8_t *retval; - struct ip6_ext *eh = (struct ip6_ext *)CMSG_DATA(cmsg); - - /* argument validation */ - if (multx != 1 && multx != 2 && multx != 4 && multx != 8) - return(NULL); - if (plusy < 0 || plusy > 7) - return(NULL); - - /* - * If this is the first option, allocate space for the - * first 2 bytes(for next header and length fields) of - * the option header. - */ - if (bp == (u_char *)eh) { - bp += 2; - cmsg->cmsg_len += 2; - } - - /* calculate pad length before the option. */ - off = bp - (u_char *)eh; - padlen = (((off % multx) + (multx - 1)) & ~(multx - 1)) - - (off % multx); - padlen += plusy; - /* insert padding */ - inet6_insert_padopt(bp, padlen); - cmsg->cmsg_len += padlen; - bp += padlen; - - /* keep space to store specified length of data */ - retval = bp; - bp += datalen; - cmsg->cmsg_len += datalen; - - /* calculate pad length after the option and insert the padding */ - off = bp - (u_char *)eh; - padlen = ((off + 7) & ~7) - off; - inet6_insert_padopt(bp, padlen); - bp += padlen; - cmsg->cmsg_len += padlen; - - /* update the length field of the ip6 option header */ - eh->ip6e_len = ((bp - (u_char *)eh) >> 3) - 1; - - return(retval); -} - -/* - * This function processes the next Hop-by-Hop option or Destination - * option in an ancillary data object. If another option remains to be - * processed, the return value of the function is 0 and *tptrp points to - * the 8-bit option type field (which is followed by the 8-bit option - * data length, followed by the option data). If no more options remain - * to be processed, the return value is -1 and *tptrp is NULL. If an - * error occurs, the return value is -1 and *tptrp is not NULL. - * (RFC 2292, 6.3.5) - */ -int -inet6_option_next(cmsg, tptrp) - const struct cmsghdr *cmsg; - u_int8_t **tptrp; -{ - struct ip6_ext *ip6e; - int hdrlen, optlen; - u_int8_t *lim; - - if (cmsg->cmsg_level != IPPROTO_IPV6 || - (cmsg->cmsg_type != IPV6_HOPOPTS && - cmsg->cmsg_type != IPV6_DSTOPTS)) - return(-1); - - /* message length validation */ - if (cmsg->cmsg_len < CMSG_SPACE(sizeof(struct ip6_ext))) - return(-1); - ip6e = (struct ip6_ext *)CMSG_DATA(cmsg); - hdrlen = (ip6e->ip6e_len + 1) << 3; - if (cmsg->cmsg_len < CMSG_SPACE(hdrlen)) - return(-1); - - /* - * If the caller does not specify the starting point, - * simply return the 1st option. - * Otherwise, search the option list for the next option. - */ - lim = (u_int8_t *)ip6e + hdrlen; - if (*tptrp == NULL) - *tptrp = (u_int8_t *)(ip6e + 1); - else { - if ((optlen = ip6optlen(*tptrp, lim)) == 0) - return(-1); - - *tptrp = *tptrp + optlen; - } - if (*tptrp >= lim) { /* there is no option */ - *tptrp = NULL; - return(-1); - } - /* - * Finally, checks if the next option is safely stored in the - * cmsg data. - */ - if (ip6optlen(*tptrp, lim) == 0) - return(-1); - else - return(0); -} - -/* - * This function is similar to the inet6_option_next() function, - * except this function lets the caller specify the option type to be - * searched for, instead of always returning the next option in the - * ancillary data object. - * Note: RFC 2292 says the type of tptrp is u_int8_t *, but we think - * it's a typo. The variable should be type of u_int8_t **. - */ -int -inet6_option_find(cmsg, tptrp, type) - const struct cmsghdr *cmsg; - u_int8_t **tptrp; - int type; -{ - struct ip6_ext *ip6e; - int hdrlen, optlen; - u_int8_t *optp, *lim; - - if (cmsg->cmsg_level != IPPROTO_IPV6 || - (cmsg->cmsg_type != IPV6_HOPOPTS && - cmsg->cmsg_type != IPV6_DSTOPTS)) - return(-1); - - /* message length validation */ - if (cmsg->cmsg_len < CMSG_SPACE(sizeof(struct ip6_ext))) - return(-1); - ip6e = (struct ip6_ext *)CMSG_DATA(cmsg); - hdrlen = (ip6e->ip6e_len + 1) << 3; - if (cmsg->cmsg_len < CMSG_SPACE(hdrlen)) - return(-1); - - /* - * If the caller does not specify the starting point, - * search from the beginning of the option list. - * Otherwise, search from *the next option* of the specified point. - */ - lim = (u_int8_t *)ip6e + hdrlen; - if (*tptrp == NULL) - *tptrp = (u_int8_t *)(ip6e + 1); - else { - if ((optlen = ip6optlen(*tptrp, lim)) == 0) - return(-1); - - *tptrp = *tptrp + optlen; - } - for (optp = *tptrp; optp < lim; optp += optlen) { - if (*optp == type) { - *tptrp = optp; - return(0); - } - if ((optlen = ip6optlen(optp, lim)) == 0) - return(-1); - } - - /* search failed */ - *tptrp = NULL; - return(-1); -} - -/* - * Calculate the length of a given IPv6 option. Also checks - * if the option is safely stored in user's buffer according to the - * calculated length and the limitation of the buffer. - */ -static int -ip6optlen(opt, lim) - u_int8_t *opt, *lim; -{ - int optlen; - - if (*opt == IP6OPT_PAD1) - optlen = 1; - else { - /* is there enough space to store type and len? */ - if (opt + 2 > lim) - return(0); - optlen = *(opt + 1) + 2; - } - if (opt + optlen <= lim) - return(optlen); - - return(0); -} - -static void -inet6_insert_padopt(u_char *p, int len) -{ - switch(len) { - case 0: - return; - case 1: - p[0] = IP6OPT_PAD1; - return; - default: - p[0] = IP6OPT_PADN; - p[1] = len - 2; - memset(&p[2], 0, len - 2); - return; - } -} diff --git a/lib/libc/net/iso_addr.3 b/lib/libc/net/iso_addr.3 deleted file mode 100644 index ad49778..0000000 --- a/lib/libc/net/iso_addr.3 +++ /dev/null @@ -1,111 +0,0 @@ -.\" Copyright (c) 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" @(#)iso_addr.3 8.1 (Berkeley) 6/4/93 -.\" $FreeBSD$ -.\" -.Dd June 4, 1993 -.Dt ISO_ADDR 3 -.Os -.Sh NAME -.Nm iso_addr , -.Nm iso_ntoa -.Nd "elementary network address conversion routines for Open System Interconnection -.Sh SYNOPSIS -.Fd #include <sys/types.h> -.Fd #include <netiso/iso.h> -.Ft struct iso_addr * -.Fn iso_addr "char *cp" -.Ft char * -.Fn iso_ntoa "struct iso_addr *isoa" -.Sh DESCRIPTION -The routine -.Fn iso_addr -interprets character strings representing -.Tn OSI -addresses, returning binary information suitable -for use in system calls. -The routine -.Fn iso_ntoa -takes -.Tn OSI -addresses and returns -.Tn ASCII -strings representing NSAPs (network service -access points) in a -notation inverse to that accepted by -.Fn iso_addr . -.Pp -Unfortunately, no universal standard exists for representing -.Tn OSI -network addresses. -.Pp -The format employed by -.Fn iso_addr -is a sequence of hexadecimal -.Dq digits -(optionally separated by periods), -of the form: -.Bd -filled -offset indent -<hex digits>.<hex digits>.<hex digits> -.Ed -.Pp -Each pair of hexadecimal digits represents a byte -with the leading digit indicating the higher-ordered bits. -A period following an even number of bytes has no -effect (but may be used to increase legibility). -A period following an odd number of bytes has the -effect of causing the byte of address being translated -to have its higher order bits filled with zeros. -.Sh RETURN VALUES -.Fn iso_ntoa -always returns a null terminated string. -.Fn iso_addr -always returns a pointer to a struct iso_addr. -(See -.Sx BUGS . ) -.Sh SEE ALSO -.Xr iso 4 -.Sh HISTORY -The -.Fn iso_addr -and -.Fn iso_ntoa -functions appeared in -.Bx 4.3 Reno . -.Sh BUGS -The returned values -reside in a static memory area. -.Pp -The function -.Fn iso_addr -should diagnose improperly formed input, and there should be an unambiguous -way to recognize this. diff --git a/lib/libc/net/iso_addr.c b/lib/libc/net/iso_addr.c deleted file mode 100644 index 8829497..0000000 --- a/lib/libc/net/iso_addr.c +++ /dev/null @@ -1,117 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)iso_addr.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <netiso/iso.h> -#include <string.h> - -/* States*/ -#define VIRGIN 0 -#define GOTONE 1 -#define GOTTWO 2 -/* Inputs */ -#define DIGIT (4*0) -#define END (4*1) -#define DELIM (4*2) - -struct iso_addr * -iso_addr(addr) - register const char *addr; -{ - static struct iso_addr out_addr; - register char *cp = out_addr.isoa_genaddr; - char *cplim = cp + sizeof(out_addr.isoa_genaddr); - register int byte = 0, state = VIRGIN, new; - - bzero((char *)&out_addr, sizeof(out_addr)); - do { - if ((*addr >= '0') && (*addr <= '9')) { - new = *addr - '0'; - } else if ((*addr >= 'a') && (*addr <= 'f')) { - new = *addr - 'a' + 10; - } else if ((*addr >= 'A') && (*addr <= 'F')) { - new = *addr - 'A' + 10; - } else if (*addr == 0) - state |= END; - else - state |= DELIM; - addr++; - switch (state /* | INPUT */) { - case GOTTWO | DIGIT: - *cp++ = byte; /*FALLTHROUGH*/ - case VIRGIN | DIGIT: - state = GOTONE; byte = new; continue; - case GOTONE | DIGIT: - state = GOTTWO; byte = new + (byte << 4); continue; - default: /* | DELIM */ - state = VIRGIN; *cp++ = byte; byte = 0; continue; - case GOTONE | END: - case GOTTWO | END: - *cp++ = byte; /* FALLTHROUGH */ - case VIRGIN | END: - break; - } - break; - } while (cp < cplim); - out_addr.isoa_len = cp - out_addr.isoa_genaddr; - return (&out_addr); -} - -static char hexlist[] = "0123456789abcdef"; - -char * -iso_ntoa(isoa) - const struct iso_addr *isoa; -{ - static char tmpbuf[sizeof(isoa->isoa_genaddr)*3]; - const u_char *binary; - char *cp; - int i; - - binary = isoa->isoa_genaddr; - cp = tmpbuf; - - for (i = 0; i < isoa->isoa_len; i++) { - *cp++ = hexlist[*binary >> 4]; - *cp++ = hexlist[*binary++ & 0xf]; - - if ((((i % 2) == 0) && ((i + 1) < isoa->isoa_len))) - *cp++ = '.'; - } - *cp = '\0'; - return tmpbuf; -} diff --git a/lib/libc/net/linkaddr.3 b/lib/libc/net/linkaddr.3 deleted file mode 100644 index 543e040..0000000 --- a/lib/libc/net/linkaddr.3 +++ /dev/null @@ -1,138 +0,0 @@ -.\" Copyright (c) 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" This code is derived from software contributed to Berkeley by -.\" Donn Seeley at BSDI. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" From: @(#)linkaddr.3 8.1 (Berkeley) 7/28/93 -.\" $FreeBSD$ -.\" -.Dd June 17, 1996 -.Dt LINK_ADDR 3 -.Os BSD 4.4 -.Sh NAME -.Nm link_addr , -.Nm link_ntoa -.Nd elementary address specification routines for link level access -.Sh SYNOPSIS -.Fd #include <sys/types.h> -.Fd #include <sys/socket.h> -.Fd #include <net/if_dl.h> -.Ft void -.Fn link_addr "const char *addr" "struct sockaddr_dl *sdl" -.Ft char * -.Fn link_ntoa "const struct sockaddr_dl *sdl" -.Sh DESCRIPTION -The routine -.Fn link_addr -interprets character strings representing -link-level addresses, returning binary information suitable -for use in system calls. -The routine -.Fn link_ntoa -takes -a link-level -address and returns an -.Tn ASCII -string representing some of the information present, -including the link level address itself, and the interface name -or number, if present. -This facility is experimental and is -still subject to change. -.Pp -For -.Fn link_addr , -the string -.Fa addr -may contain -an optional network interface identifier of the form -.Dq "name unit-number" , -suitable for the first argument to -.Xr ifconfig 8 , -followed in all cases by a colon and -an interface address in the form of -groups of hexadecimal digits -separated by periods. -Each group represents a byte of address; -address bytes are filled left to right from -low order bytes through high order bytes. -.Pp -.\" A regular expression may make this format clearer: -.\" .Bd -literal -offset indent -.\" ([a-z]+[0-9]+:)?[0-9a-f]+(\e.[0-9a-f]+)* -.\" .Ed -.\" .Pp -Thus -.Li le0:8.0.9.13.d.30 -represents an ethernet address -to be transmitted on the first Lance ethernet interface. -.Pp -The direct use of these functions is deprecated in favor of the -.Xr addr2ascii 3 -interface; however, portable programs cannot rely on the latter as it is -not yet widely implemented. -.Sh RETURN VALUES -.Fn link_ntoa -always returns a null terminated string. -.Fn link_addr -has no return value. -(See -.Sx BUGS . ) -.Sh SEE ALSO -.Xr addr2ascii 3 -.\" .Xr iso 4 -.Sh HISTORY -The -.Fn link_addr -and -.Fn link_ntoa -functions appeared in -.Bx 4.3 Reno . -.Sh BUGS -The returned values for link_ntoa -reside in a static memory area. -.Pp -The function -.Fn link_addr -should diagnose improperly formed input, and there should be an unambiguous -way to recognize this. -.Pp -If the -.Va sdl_len -field of the link socket address -.Fa sdl -is 0, -.Fn link_ntoa -will not insert a colon before the interface address bytes. -If this translated address is given to -.Fn link_addr -without inserting an initial colon, -the latter will not interpret it correctly. diff --git a/lib/libc/net/linkaddr.c b/lib/libc/net/linkaddr.c deleted file mode 100644 index 68eed3d..0000000 --- a/lib/libc/net/linkaddr.c +++ /dev/null @@ -1,158 +0,0 @@ -/*- - * Copyright (c) 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)linkaddr.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/socket.h> -#include <net/if_dl.h> -#include <string.h> - -/* States*/ -#define NAMING 0 -#define GOTONE 1 -#define GOTTWO 2 -#define RESET 3 -/* Inputs */ -#define DIGIT (4*0) -#define END (4*1) -#define DELIM (4*2) -#define LETTER (4*3) - -void -link_addr(addr, sdl) - register const char *addr; - register struct sockaddr_dl *sdl; -{ - register char *cp = sdl->sdl_data; - char *cplim = sdl->sdl_len + (char *)sdl; - register int byte = 0, state = NAMING, new; - - bzero((char *)&sdl->sdl_family, sdl->sdl_len - 1); - sdl->sdl_family = AF_LINK; - do { - state &= ~LETTER; - if ((*addr >= '0') && (*addr <= '9')) { - new = *addr - '0'; - } else if ((*addr >= 'a') && (*addr <= 'f')) { - new = *addr - 'a' + 10; - } else if ((*addr >= 'A') && (*addr <= 'F')) { - new = *addr - 'A' + 10; - } else if (*addr == 0) { - state |= END; - } else if (state == NAMING && - (((*addr >= 'A') && (*addr <= 'Z')) || - ((*addr >= 'a') && (*addr <= 'z')))) - state |= LETTER; - else - state |= DELIM; - addr++; - switch (state /* | INPUT */) { - case NAMING | DIGIT: - case NAMING | LETTER: - *cp++ = addr[-1]; - continue; - case NAMING | DELIM: - state = RESET; - sdl->sdl_nlen = cp - sdl->sdl_data; - continue; - case GOTTWO | DIGIT: - *cp++ = byte; - /* FALLTHROUGH */ - case RESET | DIGIT: - state = GOTONE; - byte = new; - continue; - case GOTONE | DIGIT: - state = GOTTWO; - byte = new + (byte << 4); - continue; - default: /* | DELIM */ - state = RESET; - *cp++ = byte; - byte = 0; - continue; - case GOTONE | END: - case GOTTWO | END: - *cp++ = byte; - /* FALLTHROUGH */ - case RESET | END: - break; - } - break; - } while (cp < cplim); - sdl->sdl_alen = cp - LLADDR(sdl); - new = cp - (char *)sdl; - if (new > sizeof(*sdl)) - sdl->sdl_len = new; - return; -} - -static char hexlist[] = "0123456789abcdef"; - -char * -link_ntoa(sdl) - register const struct sockaddr_dl *sdl; -{ - static char obuf[64]; - register char *out = obuf; - register int i; - register u_char *in = (u_char *)LLADDR(sdl); - u_char *inlim = in + sdl->sdl_alen; - int firsttime = 1; - - if (sdl->sdl_nlen) { - bcopy(sdl->sdl_data, obuf, sdl->sdl_nlen); - out += sdl->sdl_nlen; - if (sdl->sdl_alen) - *out++ = ':'; - } - while (in < inlim) { - if (firsttime) - firsttime = 0; - else - *out++ = '.'; - i = *in++; - if (i > 0xf) { - out[1] = hexlist[i & 0xf]; - i >>= 4; - out[0] = hexlist[i]; - out += 2; - } else - *out++ = hexlist[i]; - } - *out = 0; - return (obuf); -} diff --git a/lib/libc/net/map_v4v6.c b/lib/libc/net/map_v4v6.c deleted file mode 100644 index ca5e553..0000000 --- a/lib/libc/net/map_v4v6.c +++ /dev/null @@ -1,128 +0,0 @@ -/* - * ++Copyright++ 1985, 1988, 1993 - * - - * Copyright (c) 1985, 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - - * Portions Copyright (c) 1993 by Digital Equipment Corporation. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies, and that - * the name of Digital Equipment Corporation not be used in advertising or - * publicity pertaining to distribution of the document or software without - * specific, written prior permission. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT - * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - * - - * --Copyright-- - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)gethostnamadr.c 8.1 (Berkeley) 6/4/93"; -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/param.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> - -#include <stdio.h> -#include <string.h> -#include <netdb.h> -#include <resolv.h> -#include <ctype.h> -#include <errno.h> -#include <syslog.h> - -typedef union { - int32_t al; - char ac; -} align; - -void -_map_v4v6_address(src, dst) - const char *src; - char *dst; -{ - u_char *p = (u_char *)dst; - char tmp[INADDRSZ]; - int i; - - /* Stash a temporary copy so our caller can update in place. */ - bcopy(src, tmp, INADDRSZ); - /* Mark this ipv6 addr as a mapped ipv4. */ - for (i = 0; i < 10; i++) - *p++ = 0x00; - *p++ = 0xff; - *p++ = 0xff; - /* Retrieve the saved copy and we're done. */ - bcopy(tmp, (void*)p, INADDRSZ); -} - -void -_map_v4v6_hostent(hp, bpp, lenp) - struct hostent *hp; - char **bpp; - int *lenp; -{ - char **ap; - - if (hp->h_addrtype != AF_INET || hp->h_length != INADDRSZ) - return; - hp->h_addrtype = AF_INET6; - hp->h_length = IN6ADDRSZ; - for (ap = hp->h_addr_list; *ap; ap++) { - int i = sizeof(align) - ((u_long)*bpp % sizeof(align)); - - if (*lenp < (i + IN6ADDRSZ)) { - /* Out of memory. Truncate address list here. XXX */ - *ap = NULL; - return; - } - *bpp += i; - *lenp -= i; - _map_v4v6_address(*ap, *bpp); - *ap = *bpp; - *bpp += IN6ADDRSZ; - *lenp -= IN6ADDRSZ; - } -} diff --git a/lib/libc/net/name6.c b/lib/libc/net/name6.c deleted file mode 100644 index e87f40f..0000000 --- a/lib/libc/net/name6.c +++ /dev/null @@ -1,1305 +0,0 @@ -/* - * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ -/* $Id: name6.c,v 1.9 1999/10/29 03:04:26 itojun Exp $ */ -/* - * Atsushi Onoe <onoe@sm.sony.co.jp> - */ - -/* - * TODO for thread safe - * use mutex for _hostconf, _hostconf_init. - * rewrite resolvers to be thread safe - */ - -#include <sys/param.h> -#include <sys/socket.h> -#include <sys/time.h> -#include <netinet/in.h> - -#include <arpa/inet.h> -#include <arpa/nameser.h> - -#include <netdb.h> -#include <resolv.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#ifndef _PATH_HOSTS -#define _PATH_HOSTS "/etc/hosts" -#endif - -#ifndef MAXALIASES -#define MAXALIASES 10 -#endif -#ifndef MAXADDRS -#define MAXADDRS 20 -#endif -#ifndef MAXDNAME -#define MAXDNAME 1025 -#endif - -#ifdef INET6 -#define ADDRLEN(af) ((af) == AF_INET6 ? sizeof(struct in6_addr) : \ - sizeof(struct in_addr)) -#else -#define ADDRLEN(af) sizeof(struct in_addr) -#endif - -#define MAPADDR(ab, ina) \ -do { \ - memcpy(&(ab)->map_inaddr, ina, sizeof(struct in_addr)); \ - memset((ab)->map_zero, 0, sizeof((ab)->map_zero)); \ - memset((ab)->map_one, 0xff, sizeof((ab)->map_one)); \ -} while (0) -#define MAPADDRENABLED(flags) \ - (((flags) & AI_V4MAPPED) || \ - (((flags) & AI_V4MAPPED_CFG) && _mapped_addr_enabled())) - -union inx_addr { - struct in_addr in_addr; -#ifdef INET6 - struct in6_addr in6_addr; -#endif - struct { - u_char mau_zero[10]; - u_char mau_one[2]; - struct in_addr mau_inaddr; - } map_addr_un; -#define map_zero map_addr_un.mau_zero -#define map_one map_addr_un.mau_one -#define map_inaddr map_addr_un.mau_inaddr -}; - -static struct hostent *_hpcopy(struct hostent *hp, int *errp); -static struct hostent *_hpaddr(int af, const char *name, void *addr, int *errp); -static struct hostent *_hpmerge(struct hostent *hp1, struct hostent *hp2, int *errp); -#ifdef INET6 -static struct hostent *_hpmapv6(struct hostent *hp, int *errp); -#endif -static struct hostent *_hpsort(struct hostent *hp); -static struct hostent *_ghbyname(const char *name, int af, int flags, int *errp); -static char *_hgetword(char **pp); -static int _mapped_addr_enabled(void); - -static FILE *_files_open(int *errp); -static struct hostent *_files_ghbyname(const char *name, int af, int *errp); -static struct hostent *_files_ghbyaddr(const void *addr, int addrlen, int af, int *errp); -static void _files_shent(int stayopen); -static void _files_ehent(void); -static struct hostent *_nis_ghbyname(const char *name, int af, int *errp); -static struct hostent *_nis_ghbyaddr(const void *addr, int addrlen, int af, int *errp); -static struct hostent *_dns_ghbyname(const char *name, int af, int *errp); -static struct hostent *_dns_ghbyaddr(const void *addr, int addrlen, int af, int *errp); -static void _dns_shent(int stayopen); -static void _dns_ehent(void); -#ifdef ICMPNL -static struct hostent *_icmp_ghbyaddr(const void *addr, int addrlen, int af, int *errp); -#endif /* ICMPNL */ - -/* - * Select order host function. - */ -#define MAXHOSTCONF 4 - -#ifndef HOSTCONF -# define HOSTCONF "/etc/host.conf" -#endif /* !HOSTCONF */ - -struct _hostconf { - struct hostent *(*byname)(const char *name, int af, int *errp); - struct hostent *(*byaddr)(const void *addr, int addrlen, int af, int *errp); -}; - -/* default order */ -static struct _hostconf _hostconf[MAXHOSTCONF] = { - { _dns_ghbyname, _dns_ghbyaddr }, - { _files_ghbyname, _files_ghbyaddr }, -#ifdef ICMPNL - { NULL, _icmp_ghbyaddr }, -#endif /* ICMPNL */ -}; - -static int _hostconf_init_done; -static void _hostconf_init(void); - -/* - * Initialize hostconf structure. - */ - -static void -_hostconf_init(void) -{ - FILE *fp; - int n; - char *p, *line; - char buf[BUFSIZ]; - - _hostconf_init_done = 1; - n = 0; - p = HOSTCONF; - if ((fp = fopen(p, "r")) == NULL) - return; - while (n < MAXHOSTCONF && fgets(buf, sizeof(buf), fp)) { - line = buf; - if ((p = _hgetword(&line)) == NULL) - continue; - do { - if (strcmp(p, "hosts") == 0 - || strcmp(p, "local") == 0 - || strcmp(p, "file") == 0 - || strcmp(p, "files") == 0) { - _hostconf[n].byname = _files_ghbyname; - _hostconf[n].byaddr = _files_ghbyaddr; - n++; - } - else if (strcmp(p, "dns") == 0 - || strcmp(p, "bind") == 0) { - _hostconf[n].byname = _dns_ghbyname; - _hostconf[n].byaddr = _dns_ghbyaddr; - n++; - } - else if (strcmp(p, "nis") == 0) { - _hostconf[n].byname = _nis_ghbyname; - _hostconf[n].byaddr = _nis_ghbyaddr; - n++; - } -#ifdef ICMPNL - else if (strcmp(p, "icmp") == 0) { - _hostconf[n].byname = NULL; - _hostconf[n].byaddr = _icmp_ghbyaddr; - n++; - } -#endif /* ICMPNL */ - } while ((p = _hgetword(&line)) != NULL); - } - fclose(fp); - if (n < 0) { - /* no keyword found. do not change default configuration */ - return; - } - for (; n < MAXHOSTCONF; n++) { - _hostconf[n].byname = NULL; - _hostconf[n].byaddr = NULL; - } -} - -/* - * Check if kernel supports mapped address. - * implementation dependent - */ -#ifdef __KAME__ -#include <sys/sysctl.h> -#endif /* __KAME__ */ - -static int -_mapped_addr_enabled(void) -{ - /* implementation dependent check */ -#if defined(__KAME__) && defined(IPV6CTL_MAPPED_ADDR) - int mib[4]; - size_t len; - int val; - - mib[0] = CTL_NET; - mib[1] = PF_INET6; - mib[2] = IPPROTO_IPV6; - mib[3] = IPV6CTL_MAPPED_ADDR; - len = sizeof(val); - if (sysctl(mib, 4, &val, &len, 0, 0) == 0 && val != 0) - return 1; -#endif /* __KAME__ && IPV6CTL_MAPPED_ADDR */ - return 0; -} - -/* - * Functions defined in RFC2553 - * getipnodebyname, getipnodebyadr, freehostent - */ - -static struct hostent * -_ghbyname(const char *name, int af, int flags, int *errp) -{ - struct hostent *hp; - int i; - - if (flags & AI_ADDRCONFIG) { - int s; - - if ((s = socket(af, SOCK_DGRAM, 0)) < 0) - return NULL; - /* - * TODO: - * Note that implementation dependent test for address - * configuration should be done everytime called - * (or apropriate interval), - * because addresses will be dynamically assigned or deleted. - */ - _close(s); - } - - for (i = 0; i < MAXHOSTCONF; i++) { - if (_hostconf[i].byname - && (hp = (*_hostconf[i].byname)(name, af, errp)) - != NULL) - return hp; - } - - return NULL; -} - -struct hostent * -getipnodebyname(const char *name, int af, int flags, int *errp) -{ - struct hostent *hp; - union inx_addr addrbuf; - - if (af != AF_INET -#ifdef INET6 - && af != AF_INET6 -#endif - ) - { - *errp = NO_RECOVERY; - return NULL; - } - -#ifdef INET6 - /* special case for literal address */ - if (inet_pton(AF_INET6, name, &addrbuf) == 1) { - if (af != AF_INET6) { - *errp = HOST_NOT_FOUND; - return NULL; - } - return _hpaddr(af, name, &addrbuf, errp); - } -#endif - if (inet_aton(name, (struct in_addr *)&addrbuf) == 1) { - if (af != AF_INET) { - if (MAPADDRENABLED(flags)) { - MAPADDR(&addrbuf, &addrbuf.in_addr); - } else { - *errp = HOST_NOT_FOUND; - return NULL; - } - } - return _hpaddr(af, name, &addrbuf, errp); - } - - if (!_hostconf_init_done) - _hostconf_init(); - - *errp = HOST_NOT_FOUND; - hp = _ghbyname(name, af, flags, errp); - -#ifdef INET6 - if (af == AF_INET6 - && ((flags & AI_ALL) || hp == NULL) - && (MAPADDRENABLED(flags))) { - struct hostent *hp2 = _ghbyname(name, AF_INET, flags, errp); - if (hp == NULL) - hp = _hpmapv6(hp2, errp); - else { - if (hp2 && strcmp(hp->h_name, hp2->h_name) != 0) { - freehostent(hp2); - hp2 = NULL; - } - hp = _hpmerge(hp, hp2, errp); - } - } -#endif - return _hpsort(hp); -} - -struct hostent * -getipnodebyaddr(const void *src, size_t len, int af, int *errp) -{ - struct hostent *hp; - int i; -#ifdef INET6 - struct in6_addr addrbuf; -#else - struct in_addr addrbuf; -#endif - - *errp = HOST_NOT_FOUND; - - switch (af) { - case AF_INET: - if (len != sizeof(struct in_addr)) { - *errp = NO_RECOVERY; - return NULL; - } - if ((long)src & ~(sizeof(struct in_addr) - 1)) { - memcpy(&addrbuf, src, len); - src = &addrbuf; - } - if (((struct in_addr *)src)->s_addr == 0) - return NULL; - break; -#ifdef INET6 - case AF_INET6: - if (len != sizeof(struct in6_addr)) { - *errp = NO_RECOVERY; - return NULL; - } - if ((long)src & ~(sizeof(struct in6_addr) / 2 - 1)) { /*XXX*/ - memcpy(&addrbuf, src, len); - src = &addrbuf; - } - if (IN6_IS_ADDR_UNSPECIFIED((struct in6_addr *)src)) - return NULL; - if (IN6_IS_ADDR_V4MAPPED((struct in6_addr *)src) - || IN6_IS_ADDR_V4COMPAT((struct in6_addr *)src)) { - src = (char *)src + - (sizeof(struct in6_addr) - sizeof(struct in_addr)); - af = AF_INET; - len = sizeof(struct in_addr); - } - break; -#endif - default: - *errp = NO_RECOVERY; - return NULL; - } - - if (!_hostconf_init_done) - _hostconf_init(); - for (i = 0; i < MAXHOSTCONF; i++) { - if (_hostconf[i].byaddr - && (hp = (*_hostconf[i].byaddr)(src, len, af, errp)) != NULL) - return hp; - } - - return NULL; -} - -void -freehostent(struct hostent *ptr) -{ - free(ptr); -} - -#if 0 - -/* XXX: should be deprecated */ -struct hostent * -getnodebyname(const char *name, int af, int flags) -{ - return getipnodebyname(name, af, flags, &h_errno); -} - -#ifdef __warn_references -__warn_references(getnodebyname, - "warning: getnodebyname() deprecated, " - "should use getaddrinfo() or getipnodebyname()"); -#endif - -struct hostent * -getnodebyaddr(const void *src, size_t len, int af) -{ - return getipnodebyaddr(src, len, af, &h_errno); -} - -#ifdef __warn_references -__warn_references(getnodebyaddr, - "warning: getnodebyaddr() deprecated, " - "should use getnameinfo() or getipnodebyaddr()"); -#endif - -#endif - -/* - * Private utility functions - */ - -/* - * _hpcopy: allocate and copy hostent structure - */ -static struct hostent * -_hpcopy(struct hostent *hp, int *errp) -{ - struct hostent *nhp; - char *cp, **pp; - int size, addrsize; - int nalias = 0, naddr = 0; - int al_off; - int i; - - if (hp == NULL) - return hp; - - /* count size to be allocated */ - size = sizeof(struct hostent); - if (hp->h_name != NULL && *hp->h_name != '\0') - size += strlen(hp->h_name) + 1; - if ((pp = hp->h_aliases) != NULL) { - for (i = 0; *pp != NULL; i++, pp++) { - if (**pp != '\0') { - size += strlen(*pp) + 1; - nalias++; - } - } - } - /* adjust alignment */ - size = ALIGN(size); - al_off = size; - size += sizeof(char *) * (nalias + 1); - addrsize = ALIGN(hp->h_length); - if ((pp = hp->h_addr_list) != NULL) { - while (*pp++ != NULL) - naddr++; - } - size += addrsize * naddr; - size += sizeof(char *) * (naddr + 1); - - /* copy */ - if ((nhp = (struct hostent *)malloc(size)) == NULL) { - *errp = TRY_AGAIN; - return NULL; - } - cp = (char *)&nhp[1]; - if (hp->h_name != NULL && *hp->h_name != '\0') { - nhp->h_name = cp; - strcpy(cp, hp->h_name); - cp += strlen(cp) + 1; - } else - nhp->h_name = NULL; - nhp->h_aliases = (char **)((char *)nhp + al_off); - if ((pp = hp->h_aliases) != NULL) { - for (i = 0; *pp != NULL; pp++) { - if (**pp != '\0') { - nhp->h_aliases[i++] = cp; - strcpy(cp, *pp); - cp += strlen(cp) + 1; - } - } - } - nhp->h_aliases[nalias] = NULL; - cp = (char *)&nhp->h_aliases[nalias + 1]; - nhp->h_addrtype = hp->h_addrtype; - nhp->h_length = hp->h_length; - nhp->h_addr_list = (char **)cp; - if ((pp = hp->h_addr_list) != NULL) { - cp = (char *)&nhp->h_addr_list[naddr + 1]; - for (i = 0; *pp != NULL; pp++) { - nhp->h_addr_list[i++] = cp; - memcpy(cp, *pp, hp->h_length); - cp += addrsize; - } - } - nhp->h_addr_list[naddr] = NULL; - return nhp; -} - -/* - * _hpaddr: construct hostent structure with one address - */ -static struct hostent * -_hpaddr(int af, const char *name, void *addr, int *errp) -{ - struct hostent *hp, hpbuf; - char *addrs[2]; - - hp = &hpbuf; - hp->h_name = (char *)name; - hp->h_aliases = NULL; - hp->h_addrtype = af; - hp->h_length = ADDRLEN(af); - hp->h_addr_list = addrs; - addrs[0] = (char *)addr; - addrs[1] = NULL; - return _hpcopy(hp, errp); -} - -/* - * _hpmerge: merge 2 hostent structure, arguments will be freed - */ -static struct hostent * -_hpmerge(struct hostent *hp1, struct hostent *hp2, int *errp) -{ - int i, j; - int naddr, nalias; - char **pp; - struct hostent *hp, hpbuf; - char *aliases[MAXALIASES + 1], *addrs[MAXADDRS + 1]; - union inx_addr addrbuf[MAXADDRS]; - - if (hp1 == NULL) - return hp2; - if (hp2 == NULL) - return hp1; - -#define HP(i) (i == 1 ? hp1 : hp2) - hp = &hpbuf; - hp->h_name = (hp1->h_name != NULL ? hp1->h_name : hp2->h_name); - hp->h_aliases = aliases; - nalias = 0; - for (i = 1; i <= 2; i++) { - if ((pp = HP(i)->h_aliases) == NULL) - continue; - for (; nalias < MAXALIASES && *pp != NULL; pp++) { - /* check duplicates */ - for (j = 0; j < nalias; j++) - if (strcasecmp(*pp, aliases[j]) == 0) - break; - if (j == nalias) - aliases[nalias++] = *pp; - } - } - aliases[nalias] = NULL; -#ifdef INET6 - if (hp1->h_length != hp2->h_length) { - hp->h_addrtype = AF_INET6; - hp->h_length = sizeof(struct in6_addr); - } else { -#endif - hp->h_addrtype = hp1->h_addrtype; - hp->h_length = hp1->h_length; -#ifdef INET6 - } -#endif - hp->h_addr_list = addrs; - naddr = 0; - for (i = 1; i <= 2; i++) { - if ((pp = HP(i)->h_addr_list) == NULL) - continue; - if (HP(i)->h_length == hp->h_length) { - while (naddr < MAXADDRS && *pp != NULL) - addrs[naddr++] = *pp++; - } else { - /* copy IPv4 addr as mapped IPv6 addr */ - while (naddr < MAXADDRS && *pp != NULL) { - MAPADDR(&addrbuf[naddr], *pp++); - addrs[naddr] = (char *)&addrbuf[naddr]; - naddr++; - } - } - } - addrs[naddr] = NULL; - hp = _hpcopy(hp, errp); - freehostent(hp1); - freehostent(hp2); - return hp; -} - -/* - * _hpmapv6: convert IPv4 hostent into IPv4-mapped IPv6 addresses - */ -#ifdef INET6 -static struct hostent * -_hpmapv6(struct hostent *hp, int *errp) -{ - struct hostent *hp6; - - if (hp == NULL) - return NULL; - if (hp->h_addrtype == AF_INET6) - return hp; - - /* make dummy hostent to convert IPv6 address */ - if ((hp6 = (struct hostent *)malloc(sizeof(struct hostent))) == NULL) { - *errp = TRY_AGAIN; - return NULL; - } - hp6->h_name = NULL; - hp6->h_aliases = NULL; - hp6->h_addrtype = AF_INET6; - hp6->h_length = sizeof(struct in6_addr); - hp6->h_addr_list = NULL; - return _hpmerge(hp6, hp, errp); -} -#endif - -/* - * _hpsort: sort address by sortlist - */ -static struct hostent * -_hpsort(struct hostent *hp) -{ - int i, j, n; - u_char *ap, *sp, *mp, **pp; - char t; - char order[MAXADDRS]; - int nsort = _res.nsort; - - if (hp == NULL || hp->h_addr_list[1] == NULL || nsort == 0) - return hp; - for (i = 0; (ap = (u_char *)hp->h_addr_list[i]); i++) { - for (j = 0; j < nsort; j++) { -#ifdef INET6 - if (_res_ext.sort_list[j].af != hp->h_addrtype) - continue; - sp = (u_char *)&_res_ext.sort_list[j].addr; - mp = (u_char *)&_res_ext.sort_list[j].mask; -#else - sp = (u_char *)&_res.sort_list[j].addr; - mp = (u_char *)&_res.sort_list[j].mask; -#endif - for (n = 0; n < hp->h_length; n++) { - if ((ap[n] & mp[n]) != sp[n]) - break; - } - if (n == hp->h_length) - break; - } - order[i] = j; - } - n = i; - pp = (u_char **)hp->h_addr_list; - for (i = 0; i < n - 1; i++) { - for (j = i + 1; j < n; j++) { - if (order[i] > order[j]) { - ap = pp[i]; - pp[i] = pp[j]; - pp[j] = ap; - t = order[i]; - order[i] = order[j]; - order[j] = t; - } - } - } - return hp; -} - -static char * -_hgetword(char **pp) -{ - char c, *p, *ret; - const char *sp; - static const char sep[] = "# \t\n"; - - ret = NULL; - for (p = *pp; (c = *p) != '\0'; p++) { - for (sp = sep; *sp != '\0'; sp++) { - if (c == *sp) - break; - } - if (c == '#') - p[1] = '\0'; /* ignore rest of line */ - if (ret == NULL) { - if (*sp == '\0') - ret = p; - } else { - if (*sp != '\0') { - *p++ = '\0'; - break; - } - } - } - *pp = p; - if (ret == NULL || *ret == '\0') - return NULL; - return ret; -} - -/* - * FILES (/etc/hosts) - */ - -static FILE * -_files_open(int *errp) -{ - FILE *fp; - fp = fopen(_PATH_HOSTS, "r"); - if (fp == NULL) - *errp = NO_RECOVERY; - return fp; -} - -static struct hostent * -_files_ghbyname(const char *name, int af, int *errp) -{ - int match, nalias; - char *p, *line, *addrstr, *cname; - FILE *fp; - struct hostent *rethp, *hp, hpbuf; - char *aliases[MAXALIASES + 1], *addrs[2]; - union inx_addr addrbuf; - char buf[BUFSIZ]; - - if ((fp = _files_open(errp)) == NULL) - return NULL; - rethp = hp = NULL; - - while (fgets(buf, sizeof(buf), fp)) { - line = buf; - if ((addrstr = _hgetword(&line)) == NULL - || (cname = _hgetword(&line)) == NULL) - continue; - match = (strcasecmp(cname, name) == 0); - nalias = 0; - while ((p = _hgetword(&line)) != NULL) { - if (!match) - match = (strcasecmp(p, name) == 0); - if (nalias < MAXALIASES) - aliases[nalias++] = p; - } - if (!match) - continue; - if ((af == AF_INET - ? inet_aton(addrstr, (struct in_addr *)&addrbuf) - : inet_pton(af, addrstr, &addrbuf)) != 1) { - *errp = NO_DATA; /* name found */ - continue; - } - hp = &hpbuf; - hp->h_name = cname; - hp->h_aliases = aliases; - aliases[nalias] = NULL; - hp->h_addrtype = af; - hp->h_length = ADDRLEN(af); - hp->h_addr_list = addrs; - addrs[0] = (char *)&addrbuf; - addrs[1] = NULL; - hp = _hpcopy(hp, errp); - rethp = _hpmerge(rethp, hp, errp); - } - fclose(fp); - return rethp; -} - -static struct hostent * -_files_ghbyaddr(const void *addr, int addrlen, int af, int *errp) -{ - int nalias; - char *p, *line; - FILE *fp; - struct hostent *hp, hpbuf; - char *aliases[MAXALIASES + 1], *addrs[2]; - union inx_addr addrbuf; - char buf[BUFSIZ]; - - if ((fp = _files_open(errp)) == NULL) - return NULL; - hp = NULL; - while (fgets(buf, sizeof(buf), fp)) { - line = buf; - if ((p = _hgetword(&line)) == NULL - || (af == AF_INET - ? inet_aton(p, (struct in_addr *)&addrbuf) - : inet_pton(af, p, &addrbuf)) != 1 - || memcmp(addr, &addrbuf, addrlen) != 0 - || (p = _hgetword(&line)) == NULL) - continue; - hp = &hpbuf; - hp->h_name = p; - hp->h_aliases = aliases; - nalias = 0; - while ((p = _hgetword(&line)) != NULL) { - if (nalias < MAXALIASES) - aliases[nalias++] = p; - } - aliases[nalias] = NULL; - hp->h_addrtype = af; - hp->h_length = addrlen; - hp->h_addr_list = addrs; - addrs[0] = (char *)&addrbuf; - addrs[1] = NULL; - hp = _hpcopy(hp, errp); - break; - } - fclose(fp); - return hp; -} - -/* - * NIS - * - * XXX actually a hack, these are INET4 specific. - */ -static struct hostent * -_nis_ghbyname(const char *name, int af, int *errp) -{ - struct hostent *hp = NULL; - - if (af == AF_INET) { - hp = _gethostbynisname(name, af); - if (hp != NULL) - hp = _hpcopy(hp, errp); - } - return (hp); - -} - -static struct hostent * -_nis_ghbyaddr(const void *addr, int addrlen, int af, int *errp) -{ - struct hostent *hp = NULL; - - if (af == AF_INET) { - hp = _gethostbynisaddr(addr, addrlen, af); - if (hp != NULL) - hp = _hpcopy(hp, errp); - } - return (hp); -} - -#ifdef DEBUG -#define DNS_ASSERT(X) if (!(X)) { fprintf(stderr, "ASSFAIL: %s %d: %s\n", __FILE__, __LINE__, #X); goto badanswer; } -#else -#define DNS_ASSERT(X) if (!(X)) { goto badanswer; } -#endif - -static struct hostent * -_dns_ghbyname(const char *name, int af, int *errp) -{ - int n; - u_char answer[BUFSIZ]; - char tbuf[MAXDNAME+1]; - HEADER *hp; - u_char *cp, *eom; - int qtype; - int type, class, ancount, qdcount; - u_long ttl; - char hostbuf[BUFSIZ]; - char *bp; - char *alist[MAXALIASES]; - char *hlist[MAXADDRS]; - struct hostent hbuf; - int buflen; - int na, nh; - - if ((_res.options & RES_INIT) == 0) { - if (res_init() < 0) { - *errp = h_errno; - return NULL; - } - } - hbuf.h_aliases = alist; - hbuf.h_addrtype = af; - hbuf.h_length = ADDRLEN(af); - hbuf.h_addr_list = hlist; - na = nh = 0; - -#ifdef INET6 - qtype = (af == AF_INET6 ? T_AAAA : T_A); -#else - qtype = T_A; -#endif - n = res_search(name, C_IN, qtype, answer, sizeof(answer)); - if (n < 0) { - *errp = h_errno; - return NULL; - } - hp = (HEADER *)answer; - eom = answer + n; - ancount = ntohs(hp->ancount); - qdcount = ntohs(hp->qdcount); - DNS_ASSERT(qdcount == 1); - cp = answer + sizeof(HEADER); - bp = hostbuf; - buflen = sizeof(hostbuf); - - n = dn_expand(answer, eom, cp, bp, buflen); - DNS_ASSERT(n >= 0); - cp += n + QFIXEDSZ; - hbuf.h_name = bp; - n = strlen(bp) + 1; - bp += n; - buflen -= n; - while (ancount-- > 0 && cp < eom) { - n = dn_expand(answer, eom, cp, bp, buflen); - DNS_ASSERT(n >= 0); - cp += n; /* name */ - type = _getshort(cp); - cp += 2; /* type */ - class = _getshort(cp); - cp += 2; /* class */ - ttl = _getlong(cp); - cp += 4; /* ttl */ - n = _getshort(cp); - cp += 2; /* len */ - DNS_ASSERT(class == C_IN); - switch (type) { - case T_CNAME: - if (na >= MAXALIASES-1) { - cp += n; - break; - } - n = dn_expand(answer, eom, cp, tbuf, sizeof(tbuf)); - DNS_ASSERT(n >= 0); - cp += n; - /* alias */ - alist[na++] = bp; - n = strlen(bp) + 1; - bp += n; - buflen -= n; - /* canon */ - n = strlen(tbuf) + 1; - DNS_ASSERT(n < buflen); - strcpy(bp, tbuf); - hbuf.h_name = bp; - bp += n; - buflen -= n; - break; - case T_A: -#ifdef INET6 - case T_AAAA: -#endif - DNS_ASSERT(type == qtype); - bp = (char *)ALIGN(bp); - DNS_ASSERT(n == hbuf.h_length); - DNS_ASSERT(n < buflen); - if (nh < MAXADDRS-1) { - hlist[nh++] = bp; - memcpy(bp, cp, n); - bp += n; - buflen -= n; - } - cp += n; - break; - default: - DNS_ASSERT(0); - cp += n; - break; - } - } - if (nh == 0) { - badanswer: - *errp = NO_RECOVERY; - return NULL; - } - alist[na] = NULL; - hlist[nh] = NULL; - return _hpcopy(&hbuf, errp); -} - -static struct hostent * -_dns_ghbyaddr(const void *addr, int addrlen, int af, int *errp) -{ - int n; - u_char answer[BUFSIZ]; - HEADER *hp; - u_char c, *cp, *eom; - int type, class, ancount, qdcount; - u_long ttl; - char hostbuf[BUFSIZ]; - char *bp; - char *alist[MAXALIASES]; - char *hlist[2]; - struct hostent hbuf; - int buflen; - int na; -#ifdef INET6 - static const char hex[] = "0123456789abcdef"; -#endif - -#ifdef INET6 - /* XXX */ - if (af == AF_INET6 && IN6_IS_ADDR_LINKLOCAL((struct in6_addr *)addr)) - return NULL; -#endif - - if ((_res.options & RES_INIT) == 0) { - if (res_init() < 0) { - *errp = h_errno; - return NULL; - } - } - hbuf.h_name = NULL; - hbuf.h_aliases = alist; - hbuf.h_addrtype = af; - hbuf.h_length = addrlen; - hbuf.h_addr_list = hlist; - hlist[0] = (char *)addr; - hlist[1] = NULL; - na = 0; - - n = 0; - bp = hostbuf; - cp = (u_char *)addr+addrlen-1; - switch (af) { -#ifdef INET6 - case AF_INET6: - for (; n < addrlen; n++, cp--) { - c = *cp; - *bp++ = hex[c & 0xf]; - *bp++ = '.'; - *bp++ = hex[c >> 4]; - *bp++ = '.'; - } - strcpy(bp, "ip6.int"); - break; -#endif - default: - for (; n < addrlen; n++, cp--) { - c = *cp; - if (c >= 100) - *bp++ = '0' + c / 100; - if (c >= 10) - *bp++ = '0' + (c % 100) / 10; - *bp++ = '0' + c % 10; - *bp++ = '.'; - } - strcpy(bp, "in-addr.arpa"); - break; - } - - n = res_query(hostbuf, C_IN, T_PTR, answer, sizeof(answer)); - if (n < 0) { - *errp = h_errno; - return NULL; - } - hp = (HEADER *)answer; - eom = answer + n; - ancount = ntohs(hp->ancount); - qdcount = ntohs(hp->qdcount); - DNS_ASSERT(qdcount == 1); - cp = answer + sizeof(HEADER); - bp = hostbuf; - buflen = sizeof(hostbuf); - - n = dn_expand(answer, eom, cp, bp, buflen); - DNS_ASSERT(n >= 0); - cp += n + QFIXEDSZ; - while (ancount-- > 0 && cp < eom) { - n = dn_expand(answer, eom, cp, bp, buflen); - DNS_ASSERT(n >= 0); - cp += n; /* name */ - type = _getshort(cp); - cp += 2; /* type */ - class = _getshort(cp); - cp += 2; /* class */ - ttl = _getlong(cp); - cp += 4; /* ttl */ - n = _getshort(cp); - cp += 2; /* len */ - DNS_ASSERT(class == C_IN); - switch (type) { - case T_PTR: - n = dn_expand(answer, eom, cp, bp, buflen); - DNS_ASSERT(n >= 0); - cp += n; - if (na >= MAXALIASES-1) - break; - if (hbuf.h_name == NULL) - hbuf.h_name = bp; - else - alist[na++] = bp; - n = strlen(bp) + 1; - bp += n; - buflen -= n; - break; - case T_CNAME: - cp += n; - break; - default: - badanswer: - *errp = NO_RECOVERY; - return NULL; - } - } - if (hbuf.h_name == NULL) { - *errp = h_errno; - return NULL; - } - alist[na] = NULL; - return _hpcopy(&hbuf, errp); -} - -#ifdef ICMPNL - -/* - * experimental: - * draft-ietf-ipngwg-icmp-namelookups-02.txt - * ifindex is assumed to be encoded in addr. - */ -#include <sys/uio.h> -#include <netinet/ip6.h> -#include <netinet/icmp6.h> - -struct _icmp_host_cache { - struct _icmp_host_cache *hc_next; - int hc_ifindex; - struct in6_addr hc_addr; - char *hc_name; -}; - -static char * -_icmp_fqdn_query(const struct in6_addr *addr, int ifindex) -{ - int s; - struct icmp6_filter filter; - struct msghdr msg; - struct cmsghdr *cmsg; - struct in6_pktinfo *pkt; - char cbuf[256]; - char buf[1024]; - int cc; - struct icmp6_fqdn_query *fq; - struct icmp6_fqdn_reply *fr; - struct _icmp_host_cache *hc; - struct sockaddr_in6 sin6; - struct iovec iov; - fd_set s_fds, fds; - struct timeval tout; - int len; - char *name; - static int pid; - static struct _icmp_host_cache *hc_head; - - for (hc = hc_head; hc; hc = hc->hc_next) { - if (hc->hc_ifindex == ifindex - && IN6_ARE_ADDR_EQUAL(&hc->hc_addr, addr)) - return hc->hc_name; - } - - if (pid == 0) - pid = getpid(); - - ICMP6_FILTER_SETBLOCKALL(&filter); - ICMP6_FILTER_SETPASS(ICMP6_FQDN_REPLY, &filter); - - FD_ZERO(&s_fds); - tout.tv_sec = 0; - tout.tv_usec = 200000; /*XXX: 200ms*/ - - fq = (struct icmp6_fqdn_query *)buf; - fq->icmp6_fqdn_type = ICMP6_FQDN_QUERY; - fq->icmp6_fqdn_code = 0; - fq->icmp6_fqdn_cksum = 0; - fq->icmp6_fqdn_id = (u_short)pid; - fq->icmp6_fqdn_unused = 0; - fq->icmp6_fqdn_cookie[0] = 0; - fq->icmp6_fqdn_cookie[1] = 0; - - memset(&sin6, 0, sizeof(sin6)); - sin6.sin6_family = AF_INET6; - sin6.sin6_addr = *addr; - - memset(&msg, 0, sizeof(msg)); - msg.msg_name = (caddr_t)&sin6; - msg.msg_namelen = sizeof(sin6); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - msg.msg_control = NULL; - msg.msg_controllen = 0; - iov.iov_base = (caddr_t)buf; - iov.iov_len = sizeof(struct icmp6_fqdn_query); - - if (ifindex) { - msg.msg_control = cbuf; - msg.msg_controllen = sizeof(cbuf); - cmsg = CMSG_FIRSTHDR(&msg); - cmsg->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo)); - cmsg->cmsg_level = IPPROTO_IPV6; - cmsg->cmsg_type = IPV6_PKTINFO; - pkt = (struct in6_pktinfo *)&cmsg[1]; - memset(&pkt->ipi6_addr, 0, sizeof(struct in6_addr)); - pkt->ipi6_ifindex = ifindex; - cmsg = CMSG_NXTHDR(&msg, cmsg); - msg.msg_controllen = (char *)cmsg - cbuf; - } - - if ((s = socket(PF_INET6, SOCK_RAW, IPPROTO_ICMPV6)) < 0) - return NULL; - (void)setsockopt(s, IPPROTO_ICMPV6, ICMP6_FILTER, - (char *)&filter, sizeof(filter)); - cc = sendmsg(s, &msg, 0); - if (cc < 0) { - _close(s); - return NULL; - } - FD_SET(s, &s_fds); - for (;;) { - fds = s_fds; - if (select(s + 1, &fds, NULL, NULL, &tout) <= 0) { - _close(s); - return NULL; - } - len = sizeof(sin6); - cc = recvfrom(s, buf, sizeof(buf), 0, - (struct sockaddr *)&sin6, &len); - if (cc <= 0) { - _close(s); - return NULL; - } - if (cc < sizeof(struct ip6_hdr) + sizeof(struct icmp6_hdr)) - continue; - if (!IN6_ARE_ADDR_EQUAL(addr, &sin6.sin6_addr)) - continue; - fr = (struct icmp6_fqdn_reply *)(buf + sizeof(struct ip6_hdr)); - if (fr->icmp6_fqdn_type == ICMP6_FQDN_REPLY) - break; - } - _close(s); - if (fr->icmp6_fqdn_cookie[1] != 0) { - /* rfc1788 type */ - name = buf + sizeof(struct ip6_hdr) + sizeof(struct icmp6_hdr) + 4; - len = (buf + cc) - name; - } else { - len = fr->icmp6_fqdn_namelen; - name = fr->icmp6_fqdn_name; - } - if (len <= 0) - return NULL; - name[len] = 0; - - if ((hc = (struct _icmp_host_cache *)malloc(sizeof(*hc))) == NULL) - return NULL; - /* XXX: limit number of cached entries */ - hc->hc_ifindex = ifindex; - hc->hc_addr = *addr; - hc->hc_name = strdup(name); - hc->hc_next = hc_head; - hc_head = hc; - return hc->hc_name; -} - -static struct hostent * -_icmp_ghbyaddr(const void *addr, int addrlen, int af, int *errp) -{ - char *hname; - int ifindex; - struct in6_addr addr6; - - if (af != AF_INET6) { - /* - * Note: rfc1788 defines Who Are You for IPv4, - * but no one implements it. - */ - return NULL; - } - - memcpy(&addr6, addr, addrlen); - ifindex = (addr6.s6_addr[2] << 8) | addr6.s6_addr[3]; - addr6.s6_addr[2] = addr6.s6_addr[3] = 0; - - if (!IN6_IS_ADDR_LINKLOCAL(&addr6)) - return NULL; /*XXX*/ - - if ((hname = _icmp_fqdn_query(&addr6, ifindex)) == NULL) - return NULL; - return _hpaddr(af, hname, &addr6, errp); -} -#endif /* ICMPNL */ diff --git a/lib/libc/net/ns.3 b/lib/libc/net/ns.3 deleted file mode 100644 index 6e697f9..0000000 --- a/lib/libc/net/ns.3 +++ /dev/null @@ -1,131 +0,0 @@ -.\" Copyright (c) 1986, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" @(#)ns.3 8.1 (Berkeley) 6/4/93 -.\" $FreeBSD$ -.\" -.Dd June 4, 1993 -.Dt NS 3 -.Os BSD 4.3 -.Sh NAME -.Nm ns_addr , -.Nm ns_ntoa -.Nd Xerox -.Tn NS Ns (tm) -address conversion routines -.Sh SYNOPSIS -.Fd #include <sys/types.h> -.Fd #include <netns/ns.h> -.Ft struct ns_addr -.Fn ns_addr "char *cp" -.Ft char * -.Fn ns_ntoa "struct ns_addr ns" -.Sh DESCRIPTION -The routine -.Fn ns_addr -interprets character strings representing -.Tn XNS -addresses, returning binary information suitable -for use in system calls. -The routine -.Fn ns_ntoa -takes -.Tn XNS -addresses and returns -.Tn ASCII -strings representing the address in a -notation in common use in the Xerox Development Environment: -.Bd -filled -offset indent -<network number>.<host number>.<port number> -.Ed -.Pp -Trailing zero fields are suppressed, and each number is printed in hexadecimal, -in a format suitable for input to -.Fn ns_addr . -Any fields lacking super-decimal digits will have a -trailing -.Ql H -appended. -.Pp -Unfortunately, no universal standard exists for representing -.Tn XNS -addresses. -An effort has been made to insure that -.Fn ns_addr -be compatible with most formats in common use. -It will first separate an address into 1 to 3 fields using a single delimiter -chosen from -period -.Ql \&. , -colon -.Ql \&: -or pound-sign -.Ql \&# . -Each field is then examined for byte separators (colon or period). -If there are byte separators, each subfield separated is taken to be -a small hexadecimal number, and the entirety is taken as a network-byte-ordered -quantity to be zero extended in the high-network-order bytes. -Next, the field is inspected for hyphens, in which case -the field is assumed to be a number in decimal notation -with hyphens separating the millenia. -Next, the field is assumed to be a number: -It is interpreted -as hexadecimal if there is a leading -.Ql 0x -(as in C), -a trailing -.Ql H -(as in Mesa), or there are any super-decimal digits present. -It is interpreted as octal is there is a leading -.Ql 0 -and there are no super-octal digits. -Otherwise, it is converted as a decimal number. -.Sh RETURN VALUES -None. (See -.Sx BUGS . ) -.Sh SEE ALSO -.Xr hosts 5 , -.Xr networks 5 -.Sh HISTORY -The -.Fn ns_addr -and -.Fn ns_toa -functions appeared in -.Bx 4.3 . -.Sh BUGS -The string returned by -.Fn ns_ntoa -resides in a static memory area. -The function -.Fn ns_addr -should diagnose improperly formed input, and there should be an unambiguous -way to recognize this. diff --git a/lib/libc/net/ns_addr.c b/lib/libc/net/ns_addr.c deleted file mode 100644 index 3446e08..0000000 --- a/lib/libc/net/ns_addr.c +++ /dev/null @@ -1,227 +0,0 @@ -/* - * Copyright (c) 1986, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * J.Q. Johnson. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)ns_addr.c 8.1 (Berkeley) 6/7/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> -#include <netns/ns.h> -#include <stdio.h> -#include <string.h> - -static struct ns_addr addr, zero_addr; - -static void Field(), cvtbase(); - -struct ns_addr -ns_addr(name) - const char *name; -{ - char separator; - char *hostname, *socketname, *cp; - char buf[50]; - - (void)strncpy(buf, name, sizeof(buf) - 1); - buf[sizeof(buf) - 1] = '\0'; - - /* - * First, figure out what he intends as a field separtor. - * Despite the way this routine is written, the prefered - * form 2-272.AA001234H.01777, i.e. XDE standard. - * Great efforts are made to insure backward compatability. - */ - if ((hostname = strchr(buf, '#')) != NULL) - separator = '#'; - else { - hostname = strchr(buf, '.'); - if ((cp = strchr(buf, ':')) && - ((hostname && cp < hostname) || (hostname == 0))) { - hostname = cp; - separator = ':'; - } else - separator = '.'; - } - if (hostname) - *hostname++ = 0; - - addr = zero_addr; - Field(buf, addr.x_net.c_net, 4); - if (hostname == 0) - return (addr); /* No separator means net only */ - - socketname = strchr(hostname, separator); - if (socketname) { - *socketname++ = 0; - Field(socketname, (u_char *)&addr.x_port, 2); - } - - Field(hostname, addr.x_host.c_host, 6); - - return (addr); -} - -static void -Field(buf, out, len) - char *buf; - u_char *out; - int len; -{ - register char *bp = buf; - int i, ibase, base16 = 0, base10 = 0, clen = 0; - int hb[6], *hp; - char *fmt; - - /* - * first try 2-273#2-852-151-014#socket - */ - if ((*buf != '-') && - (1 < (i = sscanf(buf, "%d-%d-%d-%d-%d", - &hb[0], &hb[1], &hb[2], &hb[3], &hb[4])))) { - cvtbase(1000L, 256, hb, i, out, len); - return; - } - /* - * try form 8E1#0.0.AA.0.5E.E6#socket - */ - if (1 < (i = sscanf(buf,"%x.%x.%x.%x.%x.%x", - &hb[0], &hb[1], &hb[2], &hb[3], &hb[4], &hb[5]))) { - cvtbase(256L, 256, hb, i, out, len); - return; - } - /* - * try form 8E1#0:0:AA:0:5E:E6#socket - */ - if (1 < (i = sscanf(buf,"%x:%x:%x:%x:%x:%x", - &hb[0], &hb[1], &hb[2], &hb[3], &hb[4], &hb[5]))) { - cvtbase(256L, 256, hb, i, out, len); - return; - } - /* - * This is REALLY stretching it but there was a - * comma notation separting shorts -- definitely non standard - */ - if (1 < (i = sscanf(buf,"%x,%x,%x", - &hb[0], &hb[1], &hb[2]))) { - hb[0] = htons(hb[0]); hb[1] = htons(hb[1]); - hb[2] = htons(hb[2]); - cvtbase(65536L, 256, hb, i, out, len); - return; - } - - /* Need to decide if base 10, 16 or 8 */ - while (*bp) switch (*bp++) { - - case '0': case '1': case '2': case '3': case '4': case '5': - case '6': case '7': case '-': - break; - - case '8': case '9': - base10 = 1; - break; - - case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': - case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': - base16 = 1; - break; - - case 'x': case 'X': - *--bp = '0'; - base16 = 1; - break; - - case 'h': case 'H': - base16 = 1; - /* fall into */ - - default: - *--bp = 0; /* Ends Loop */ - } - if (base16) { - fmt = "%3x"; - ibase = 4096; - } else if (base10 == 0 && *buf == '0') { - fmt = "%3o"; - ibase = 512; - } else { - fmt = "%3d"; - ibase = 1000; - } - - for (bp = buf; *bp++; ) clen++; - if (clen == 0) clen++; - if (clen > 18) clen = 18; - i = ((clen - 1) / 3) + 1; - bp = clen + buf - 3; - hp = hb + i - 1; - - while (hp > hb) { - (void)sscanf(bp, fmt, hp); - bp[0] = 0; - hp--; - bp -= 3; - } - (void)sscanf(buf, fmt, hp); - cvtbase((long)ibase, 256, hb, i, out, len); -} - -static void -cvtbase(oldbase,newbase,input,inlen,result,reslen) - long oldbase; - int newbase; - int input[]; - int inlen; - unsigned char result[]; - int reslen; -{ - int d, e; - long sum; - - e = 1; - while (e > 0 && reslen > 0) { - d = 0; e = 0; sum = 0; - /* long division: input=input/newbase */ - while (d < inlen) { - sum = sum*oldbase + (long) input[d]; - e += (sum > 0); - input[d++] = sum / newbase; - sum %= newbase; - } - result[--reslen] = sum; /* accumulate remainder */ - } - for (d=0; d < reslen; d++) - result[d] = 0; -} diff --git a/lib/libc/net/ns_name.c b/lib/libc/net/ns_name.c deleted file mode 100644 index cbaf7bd..0000000 --- a/lib/libc/net/ns_name.c +++ /dev/null @@ -1,593 +0,0 @@ -/* - * Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#ifndef lint -static char rcsid[] = "$FreeBSD$"; -#endif - -#include <sys/types.h> - -#include <netinet/in.h> -#include <arpa/nameser.h> - -#include <errno.h> -#include <resolv.h> -#include <string.h> - -/* Data. */ - -static char digits[] = "0123456789"; - -/* Forward. */ - -static int special(int); -static int printable(int); -static int dn_find(const u_char *, const u_char *, - const u_char * const *, - const u_char * const *); - -/* Public. */ - -/* - * ns_name_ntop(src, dst, dstsiz) - * Convert an encoded domain name to printable ascii as per RFC1035. - * return: - * Number of bytes written to buffer, or -1 (with errno set) - * notes: - * The root is returned as "." - * All other domains are returned in non absolute form - */ -int -ns_name_ntop(const u_char *src, char *dst, size_t dstsiz) { - const u_char *cp; - char *dn, *eom; - u_char c; - u_int n; - - cp = src; - dn = dst; - eom = dst + dstsiz; - - while ((n = *cp++) != 0) { - if ((n & NS_CMPRSFLGS) != 0) { - /* Some kind of compression pointer. */ - errno = EMSGSIZE; - return (-1); - } - if (dn != dst) { - if (dn >= eom) { - errno = EMSGSIZE; - return (-1); - } - *dn++ = '.'; - } - if (dn + n >= eom) { - errno = EMSGSIZE; - return (-1); - } - for ((void)NULL; n > 0; n--) { - c = *cp++; - if (special(c)) { - if (dn + 1 >= eom) { - errno = EMSGSIZE; - return (-1); - } - *dn++ = '\\'; - *dn++ = (char)c; - } else if (!printable(c)) { - if (dn + 3 >= eom) { - errno = EMSGSIZE; - return (-1); - } - *dn++ = '\\'; - *dn++ = digits[c / 100]; - *dn++ = digits[(c % 100) / 10]; - *dn++ = digits[c % 10]; - } else { - if (dn >= eom) { - errno = EMSGSIZE; - return (-1); - } - *dn++ = (char)c; - } - } - } - if (dn == dst) { - if (dn >= eom) { - errno = EMSGSIZE; - return (-1); - } - *dn++ = '.'; - } - if (dn >= eom) { - errno = EMSGSIZE; - return (-1); - } - *dn++ = '\0'; - return (dn - dst); -} - -/* - * ns_name_pton(src, dst, dstsiz) - * Convert a ascii string into an encoded domain name as per RFC1035. - * return: - * -1 if it fails - * 1 if string was fully qualified - * 0 is string was not fully qualified - * notes: - * Enforces label and domain length limits. - */ - -int -ns_name_pton(const char *src, u_char *dst, size_t dstsiz) { - u_char *label, *bp, *eom; - int c, n, escaped; - char *cp; - - escaped = 0; - bp = dst; - eom = dst + dstsiz; - label = bp++; - - while ((c = *src++) != 0) { - if (escaped) { - if ((cp = strchr(digits, c)) != NULL) { - n = (cp - digits) * 100; - if ((c = *src++) == 0 || - (cp = strchr(digits, c)) == NULL) { - errno = EMSGSIZE; - return (-1); - } - n += (cp - digits) * 10; - if ((c = *src++) == 0 || - (cp = strchr(digits, c)) == NULL) { - errno = EMSGSIZE; - return (-1); - } - n += (cp - digits); - if (n > 255) { - errno = EMSGSIZE; - return (-1); - } - c = n; - } - escaped = 0; - } else if (c == '\\') { - escaped = 1; - continue; - } else if (c == '.') { - c = (bp - label - 1); - if ((c & NS_CMPRSFLGS) != 0) { /* Label too big. */ - errno = EMSGSIZE; - return (-1); - } - if (label >= eom) { - errno = EMSGSIZE; - return (-1); - } - *label = c; - /* Fully qualified ? */ - if (*src == '\0') { - if (c != 0) { - if (bp >= eom) { - errno = EMSGSIZE; - return (-1); - } - *bp++ = '\0'; - } - if ((bp - dst) > MAXCDNAME) { - errno = EMSGSIZE; - return (-1); - } - return (1); - } - if (c == 0) { - errno = EMSGSIZE; - return (-1); - } - label = bp++; - continue; - } - if (bp >= eom) { - errno = EMSGSIZE; - return (-1); - } - *bp++ = (u_char)c; - } - c = (bp - label - 1); - if ((c & NS_CMPRSFLGS) != 0) { /* Label too big. */ - errno = EMSGSIZE; - return (-1); - } - if (label >= eom) { - errno = EMSGSIZE; - return (-1); - } - *label = c; - if (c != 0) { - if (bp >= eom) { - errno = EMSGSIZE; - return (-1); - } - *bp++ = 0; - } - if ((bp - dst) > MAXCDNAME) { /* src too big */ - errno = EMSGSIZE; - return (-1); - } - return (0); -} - -/* - * ns_name_unpack(msg, eom, src, dst, dstsiz) - * Unpack a domain name from a message, source may be compressed. - * return: - * -1 if it fails, or consumed octets if it succeeds. - */ -int -ns_name_unpack(const u_char *msg, const u_char *eom, const u_char *src, - u_char *dst, size_t dstsiz) -{ - const u_char *srcp, *dstlim; - u_char *dstp; - int n, c, len, checked; - - len = -1; - checked = 0; - dstp = dst; - srcp = src; - dstlim = dst + dstsiz; - if (srcp < msg || srcp >= eom) { - errno = EMSGSIZE; - return (-1); - } - /* Fetch next label in domain name. */ - while ((n = *srcp++) != 0) { - /* Check for indirection. */ - switch (n & NS_CMPRSFLGS) { - case 0: - /* Limit checks. */ - if (dstp + n + 1 >= dstlim || srcp + n >= eom) { - errno = EMSGSIZE; - return (-1); - } - checked += n + 1; - *dstp++ = n; - memcpy(dstp, srcp, n); - dstp += n; - srcp += n; - break; - - case NS_CMPRSFLGS: - if (srcp >= eom) { - errno = EMSGSIZE; - return (-1); - } - if (len < 0) - len = srcp - src + 1; - srcp = msg + (((n & 0x3f) << 8) | (*srcp & 0xff)); - if (srcp < msg || srcp >= eom) { /* Out of range. */ - errno = EMSGSIZE; - return (-1); - } - checked += 2; - /* - * Check for loops in the compressed name; - * if we've looked at the whole message, - * there must be a loop. - */ - if (checked >= eom - msg) { - errno = EMSGSIZE; - return (-1); - } - break; - - default: - errno = EMSGSIZE; - return (-1); /* flag error */ - } - } - *dstp = '\0'; - if (len < 0) - len = srcp - src; - return (len); -} - -/* - * ns_name_pack(src, dst, dstsiz, dnptrs, lastdnptr) - * Pack domain name 'domain' into 'comp_dn'. - * return: - * Size of the compressed name, or -1. - * notes: - * 'dnptrs' is an array of pointers to previous compressed names. - * dnptrs[0] is a pointer to the beginning of the message. The array - * ends with NULL. - * 'lastdnptr' is a pointer to the end of the array pointed to - * by 'dnptrs'. - * Side effects: - * The list of pointers in dnptrs is updated for labels inserted into - * the message as we compress the name. If 'dnptr' is NULL, we don't - * try to compress names. If 'lastdnptr' is NULL, we don't update the - * list. - */ -int -ns_name_pack(const u_char *src, u_char *dst, int dstsiz, - const u_char **dnptrs, const u_char **lastdnptr) -{ - u_char *dstp; - const u_char **cpp, **lpp, *eob, *msg; - const u_char *srcp; - int n, l; - - srcp = src; - dstp = dst; - eob = dstp + dstsiz; - lpp = cpp = NULL; - if (dnptrs != NULL) { - if ((msg = *dnptrs++) != NULL) { - for (cpp = dnptrs; *cpp != NULL; cpp++) - (void)NULL; - lpp = cpp; /* end of list to search */ - } - } else - msg = NULL; - - /* make sure the domain we are about to add is legal */ - l = 0; - do { - n = *srcp; - if ((n & NS_CMPRSFLGS) != 0) { - errno = EMSGSIZE; - return (-1); - } - l += n + 1; - if (l > MAXCDNAME) { - errno = EMSGSIZE; - return (-1); - } - srcp += n + 1; - } while (n != 0); - - srcp = src; - do { - /* Look to see if we can use pointers. */ - n = *srcp; - if (n != 0 && msg != NULL) { - l = dn_find(srcp, msg, (const u_char * const *)dnptrs, - (const u_char * const *)lpp); - if (l >= 0) { - if (dstp + 1 >= eob) { - errno = EMSGSIZE; - return (-1); - } - *dstp++ = (l >> 8) | NS_CMPRSFLGS; - *dstp++ = l % 256; - return (dstp - dst); - } - /* Not found, save it. */ - if (lastdnptr != NULL && cpp < lastdnptr - 1 && - (dstp - msg) < 0x4000) { - *cpp++ = dstp; - *cpp = NULL; - } - } - /* copy label to buffer */ - if (n & NS_CMPRSFLGS) { /* Should not happen. */ - errno = EMSGSIZE; - return (-1); - } - if (dstp + 1 + n >= eob) { - errno = EMSGSIZE; - return (-1); - } - memcpy(dstp, srcp, n + 1); - srcp += n + 1; - dstp += n + 1; - } while (n != 0); - - if (dstp > eob) { - if (msg != NULL) - *lpp = NULL; - errno = EMSGSIZE; - return (-1); - } - return (dstp - dst); -} - -/* - * ns_name_uncompress(msg, eom, src, dst, dstsiz) - * Expand compressed domain name to presentation format. - * return: - * Number of bytes read out of `src', or -1 (with errno set). - * note: - * Root domain returns as "." not "". - */ -int -ns_name_uncompress(const u_char *msg, const u_char *eom, const u_char *src, - char *dst, size_t dstsiz) -{ - u_char tmp[NS_MAXCDNAME]; - int n; - - if ((n = ns_name_unpack(msg, eom, src, tmp, sizeof tmp)) == -1) - return (-1); - if (ns_name_ntop(tmp, dst, dstsiz) == -1) - return (-1); - return (n); -} - -/* - * ns_name_compress(src, dst, dstsiz, dnptrs, lastdnptr) - * Compress a domain name into wire format, using compression pointers. - * return: - * Number of bytes consumed in `dst' or -1 (with errno set). - * notes: - * 'dnptrs' is an array of pointers to previous compressed names. - * dnptrs[0] is a pointer to the beginning of the message. - * The list ends with NULL. 'lastdnptr' is a pointer to the end of the - * array pointed to by 'dnptrs'. Side effect is to update the list of - * pointers for labels inserted into the message as we compress the name. - * If 'dnptr' is NULL, we don't try to compress names. If 'lastdnptr' - * is NULL, we don't update the list. - */ -int -ns_name_compress(const char *src, u_char *dst, size_t dstsiz, - const u_char **dnptrs, const u_char **lastdnptr) -{ - u_char tmp[NS_MAXCDNAME]; - - if (ns_name_pton(src, tmp, sizeof tmp) == -1) - return (-1); - return (ns_name_pack(tmp, dst, dstsiz, dnptrs, lastdnptr)); -} - -/* - * ns_name_skip(ptrptr, eom) - * Advance *ptrptr to skip over the compressed name it points at. - * return: - * 0 on success, -1 (with errno set) on failure. - */ -int -ns_name_skip(const u_char **ptrptr, const u_char *eom) { - const u_char *cp; - u_int n; - - cp = *ptrptr; - while (cp < eom && (n = *cp++) != 0) { - /* Check for indirection. */ - switch (n & NS_CMPRSFLGS) { - case 0: /* normal case, n == len */ - cp += n; - continue; - case NS_CMPRSFLGS: /* indirection */ - cp++; - break; - default: /* illegal type */ - errno = EMSGSIZE; - return (-1); - } - break; - } - if (cp > eom) { - errno = EMSGSIZE; - return (-1); - } - *ptrptr = cp; - return (0); -} - -/* Private. */ - -/* - * special(ch) - * Thinking in noninternationalized USASCII (per the DNS spec), - * is this characted special ("in need of quoting") ? - * return: - * boolean. - */ -static int -special(int ch) { - switch (ch) { - case 0x22: /* '"' */ - case 0x2E: /* '.' */ - case 0x3B: /* ';' */ - case 0x5C: /* '\\' */ - /* Special modifiers in zone files. */ - case 0x40: /* '@' */ - case 0x24: /* '$' */ - return (1); - default: - return (0); - } -} - -/* - * printable(ch) - * Thinking in noninternationalized USASCII (per the DNS spec), - * is this character visible and not a space when printed ? - * return: - * boolean. - */ -static int -printable(int ch) { - return (ch > 0x20 && ch < 0x7f); -} - -/* - * Thinking in noninternationalized USASCII (per the DNS spec), - * convert this character to lower case if it's upper case. - */ -static int -mklower(int ch) { - if (ch >= 0x41 && ch <= 0x5A) - return (ch + 0x20); - return (ch); -} - -/* - * dn_find(domain, msg, dnptrs, lastdnptr) - * Search for the counted-label name in an array of compressed names. - * return: - * offset from msg if found, or -1. - * notes: - * dnptrs is the pointer to the first name on the list, - * not the pointer to the start of the message. - */ -static int -dn_find(const u_char *domain, const u_char *msg, - const u_char * const *dnptrs, - const u_char * const *lastdnptr) -{ - const u_char *dn, *cp, *sp; - const u_char * const *cpp; - u_int n; - - for (cpp = dnptrs; cpp < lastdnptr; cpp++) { - dn = domain; - sp = cp = *cpp; - while ((n = *cp++) != 0) { - /* - * check for indirection - */ - switch (n & NS_CMPRSFLGS) { - case 0: /* normal case, n == len */ - if (n != *dn++) - goto next; - for ((void)NULL; n > 0; n--) - if (mklower(*dn++) != mklower(*cp++)) - goto next; - /* Is next root for both ? */ - if (*dn == '\0' && *cp == '\0') - return (sp - msg); - if (*dn) - continue; - goto next; - - case NS_CMPRSFLGS: /* indirection */ - cp = msg + (((n & 0x3f) << 8) | *cp); - break; - - default: /* illegal type */ - errno = EMSGSIZE; - return (-1); - } - } - next: ; - } - errno = ENOENT; - return (-1); -} diff --git a/lib/libc/net/ns_netint.c b/lib/libc/net/ns_netint.c deleted file mode 100644 index 5e25b49..0000000 --- a/lib/libc/net/ns_netint.c +++ /dev/null @@ -1,54 +0,0 @@ -/* - * Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#ifndef lint -static char rcsid[] = "$FreeBSD$"; -#endif - -/* Import. */ - -#include <sys/types.h> -#include <sys/socket.h> - -#include <netinet/in.h> -#include <arpa/nameser.h> - -u_int -ns_get16(const u_char *src) { - u_int dst; - - NS_GET16(dst, src); - return (dst); -} - -u_long -ns_get32(const u_char *src) { - u_long dst; - - NS_GET32(dst, src); - return (dst); -} - -void -ns_put16(u_int src, u_char *dst) { - NS_PUT16(src, dst); -} - -void -ns_put32(u_long src, u_char *dst) { - NS_PUT32(src, dst); -} diff --git a/lib/libc/net/ns_ntoa.c b/lib/libc/net/ns_ntoa.c deleted file mode 100644 index de5f305..0000000 --- a/lib/libc/net/ns_ntoa.c +++ /dev/null @@ -1,100 +0,0 @@ -/* - * Copyright (c) 1986, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)ns_ntoa.c 8.1 (Berkeley) 6/4/93"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> -#include <netns/ns.h> -#include <stdio.h> - -char * -ns_ntoa(addr) - struct ns_addr addr; -{ - static char obuf[40]; - union { union ns_net net_e; u_long long_e; } net; - u_short port = htons(addr.x_port); - register char *cp; - char *cp2; - register u_char *up = addr.x_host.c_host; - u_char *uplim = up + 6; - static char *spectHex(); - - net.net_e = addr.x_net; - sprintf(obuf, "%lx", (u_long)ntohl(net.long_e)); - cp = spectHex(obuf); - cp2 = cp + 1; - while (*up==0 && up < uplim) up++; - if (up == uplim) { - if (port) { - sprintf(cp, ".0"); - cp += 2; - } - } else { - sprintf(cp, ".%x", *up++); - while (up < uplim) { - while (*cp) cp++; - sprintf(cp, "%02x", *up++); - } - cp = spectHex(cp2); - } - if (port) { - sprintf(cp, ".%x", port); - spectHex(cp + 1); - } - return (obuf); -} - -static char * -spectHex(p0) - char *p0; -{ - int ok = 0; - int nonzero = 0; - register char *p = p0; - for (; *p; p++) switch (*p) { - - case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': - *p += ('A' - 'a'); - /* fall into . . . */ - case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': - ok = 1; - case '1': case '2': case '3': case '4': case '5': - case '6': case '7': case '8': case '9': - nonzero = 1; - } - if (nonzero && !ok) { *p++ = 'H'; *p = 0; } - return (p); -} diff --git a/lib/libc/net/ns_parse.c b/lib/libc/net/ns_parse.c deleted file mode 100644 index d3653b1..0000000 --- a/lib/libc/net/ns_parse.c +++ /dev/null @@ -1,190 +0,0 @@ -/* - * Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#ifndef lint -static char rcsid[] = "$FreeBSD$"; -#endif - -#include <sys/types.h> - -#include <netinet/in.h> -#include <arpa/nameser.h> - -#include <errno.h> -#include <resolv.h> -#include <string.h> - -/* These need to be in the same order as the nres.h:ns_flag enum. */ -struct _ns_flagdata _ns_flagdata[16] = { - { 0x8000, 15 }, /* qr. */ - { 0x7800, 11 }, /* opcode. */ - { 0x0400, 10 }, /* aa. */ - { 0x0200, 9 }, /* tc. */ - { 0x0100, 8 }, /* rd. */ - { 0x0080, 7 }, /* ra. */ - { 0x0040, 6 }, /* z. */ - { 0x0020, 5 }, /* ad. */ - { 0x0010, 4 }, /* cd. */ - { 0x000f, 0 }, /* rcode. */ - { 0x0000, 0 }, /* expansion (1/6). */ - { 0x0000, 0 }, /* expansion (2/6). */ - { 0x0000, 0 }, /* expansion (3/6). */ - { 0x0000, 0 }, /* expansion (4/6). */ - { 0x0000, 0 }, /* expansion (5/6). */ - { 0x0000, 0 }, /* expansion (6/6). */ -}; - -static int -skiprr(const u_char *ptr, const u_char *eom, ns_sect section, int count) { - const u_char *optr = ptr; - - for ((void)NULL; count > 0; count--) { - int b, rdlength; - - b = dn_skipname(ptr, eom); - if (b < 0) - goto emsgsize; - ptr += b/*Name*/ + NS_INT16SZ/*Type*/ + NS_INT16SZ/*Class*/; - if (section != ns_s_qd) { - if (ptr + NS_INT32SZ > eom) - goto emsgsize; - ptr += NS_INT32SZ/*TTL*/; - if (ptr + NS_INT16SZ > eom) - goto emsgsize; - NS_GET16(rdlength, ptr); - ptr += rdlength/*RData*/; - } - } - if (ptr > eom) - goto emsgsize; - return (ptr - optr); - emsgsize: - errno = EMSGSIZE; - return (-1); -} - -int -ns_initparse(const u_char *msg, int msglen, ns_msg *handle) { - const u_char *eom = msg + msglen; - int i; - - memset(handle, 0x5e, sizeof *handle); - handle->_msg = msg; - handle->_eom = eom; - if (msg + NS_INT16SZ > eom) - goto emsgsize; - NS_GET16(handle->_id, msg); - if (msg + NS_INT16SZ > eom) - goto emsgsize; - NS_GET16(handle->_flags, msg); - for (i = 0; i < ns_s_max; i++) { - if (msg + NS_INT16SZ > eom) - goto emsgsize; - NS_GET16(handle->_counts[i], msg); - } - for (i = 0; i < ns_s_max; i++) - if (handle->_counts[i] == 0) - handle->_sections[i] = NULL; - else { - int b = skiprr(msg, eom, (ns_sect)i, - handle->_counts[i]); - - if (b < 0) - return (-1); - handle->_sections[i] = msg; - msg += b; - } - if (msg != eom) - goto emsgsize; - handle->_sect = ns_s_max; - handle->_rrnum = -1; - handle->_ptr = NULL; - return (0); - emsgsize: - errno = EMSGSIZE; - return (-1); -} - -int -ns_parserr(ns_msg *handle, ns_sect section, int rrnum, ns_rr *rr) { - int b; - - /* Make section right. */ - if (section < 0 || section >= ns_s_max) - goto enodev; - if ((int)section != (int)handle->_sect) { - handle->_sect = section; - handle->_rrnum = 0; - handle->_ptr = handle->_sections[(int)section]; - } - - /* Make rrnum right. */ - if (rrnum == -1) - rrnum = handle->_rrnum; - if (rrnum < 0 || rrnum >= handle->_counts[(int)section]) - goto enodev; - if (rrnum < handle->_rrnum) { - handle->_rrnum = 0; - handle->_ptr = handle->_sections[(int)section]; - } - - b = skiprr(handle->_msg, handle->_eom, section, - rrnum - handle->_rrnum); - if (b < 0) - return (-1); - handle->_ptr += b; - handle->_rrnum = rrnum; - - /* Do the parse. */ - b = dn_expand(handle->_msg, handle->_eom, - handle->_ptr, rr->name, NS_MAXDNAME); - if (b < 0) - return (-1); - handle->_ptr += b; - if (handle->_ptr + NS_INT16SZ > handle->_eom) - goto emsgsize; - NS_GET16(rr->type, handle->_ptr); - if (handle->_ptr + NS_INT16SZ > handle->_eom) - goto emsgsize; - NS_GET16(rr->rr_class, handle->_ptr); - if (section == ns_s_qd) { - rr->ttl = 0; - rr->rdlength = 0; - rr->rdata = NULL; - } else { - if (handle->_ptr + NS_INT32SZ > handle->_eom) - goto emsgsize; - NS_GET32(rr->ttl, handle->_ptr); - if (handle->_ptr + NS_INT16SZ > handle->_eom) - goto emsgsize; - NS_GET16(rr->rdlength, handle->_ptr); - if (handle->_ptr + rr->rdlength > handle->_eom) - goto emsgsize; - rr->rdata = handle->_ptr; - handle->_ptr += rr->rdlength; - } - handle->_rrnum++; - - /* All done. */ - return (0); - enodev: - errno = ENODEV; - return (-1); - emsgsize: - errno = EMSGSIZE; - return (-1); -} diff --git a/lib/libc/net/ns_print.c b/lib/libc/net/ns_print.c deleted file mode 100644 index 6be8c80..0000000 --- a/lib/libc/net/ns_print.c +++ /dev/null @@ -1,743 +0,0 @@ -/* - * Copyright (c) 1996, 1998 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#ifndef lint -static char rcsid[] = "$FreeBSD$"; -#endif - -/* Import. */ - -#include <sys/types.h> -#include <sys/socket.h> - -#include <netinet/in.h> -#include <arpa/nameser.h> -#include <arpa/inet.h> - -#include <assert.h> -#include <errno.h> -#include <resolv.h> -#include <string.h> -#include <ctype.h> - -#define SPRINTF(x) ((size_t)sprintf x) - -/* Forward. */ - -static size_t prune_origin(const char *name, const char *origin); -static int charstr(const u_char *rdata, const u_char *edata, - char **buf, size_t *buflen); -static int addname(const u_char *msg, size_t msglen, - const u_char **p, const char *origin, - char **buf, size_t *buflen); -static void addlen(size_t len, char **buf, size_t *buflen); -static int addstr(const char *src, size_t len, - char **buf, size_t *buflen); -static int addtab(size_t len, size_t target, int spaced, - char **buf, size_t *buflen); - -/* Macros. */ - -#define T(x) \ - do { \ - if ((x) < 0) \ - return (-1); \ - } while (0) - -/* Public. */ - -/* - * int - * ns_sprintrr(handle, rr, name_ctx, origin, buf, buflen) - * Convert an RR to presentation format. - * return: - * Number of characters written to buf, or -1 (check errno). - */ -int -ns_sprintrr(const ns_msg *handle, const ns_rr *rr, - const char *name_ctx, const char *origin, - char *buf, size_t buflen) -{ - int n; - - n = ns_sprintrrf(ns_msg_base(*handle), ns_msg_size(*handle), - ns_rr_name(*rr), ns_rr_class(*rr), ns_rr_type(*rr), - ns_rr_ttl(*rr), ns_rr_rdata(*rr), ns_rr_rdlen(*rr), - name_ctx, origin, buf, buflen); - return (n); -} - -/* - * int - * ns_sprintrrf(msg, msglen, name, class, type, ttl, rdata, rdlen, - * name_ctx, origin, buf, buflen) - * Convert the fields of an RR into presentation format. - * return: - * Number of characters written to buf, or -1 (check errno). - */ -int -ns_sprintrrf(const u_char *msg, size_t msglen, - const char *name, ns_class class, ns_type type, - u_long ttl, const u_char *rdata, size_t rdlen, - const char *name_ctx, const char *origin, - char *buf, size_t buflen) -{ - const char *obuf = buf; - const u_char *edata = rdata + rdlen; - int spaced = 0; - - const char *comment; - char tmp[100]; - int len, x; - - /* - * Owner. - */ - if (name_ctx != NULL && strcasecmp(name_ctx, name) == 0) { - T(addstr("\t\t\t", 3, &buf, &buflen)); - } else { - len = prune_origin(name, origin); - if (len == 0) { - T(addstr("@\t\t\t", 4, &buf, &buflen)); - } else { - T(addstr(name, len, &buf, &buflen)); - /* Origin not used and no trailing dot? */ - if ((!origin || !origin[0] || name[len] == '\0') && - name[len - 1] != '.') { - T(addstr(".", 1, &buf, &buflen)); - len++; - } - T(spaced = addtab(len, 24, spaced, &buf, &buflen)); - } - } - - /* - * TTL, Class, Type. - */ - T(x = ns_format_ttl(ttl, buf, buflen)); - addlen(x, &buf, &buflen); - len = SPRINTF((tmp, " %s %s", p_class(class), p_type(type))); - T(addstr(tmp, len, &buf, &buflen)); - T(spaced = addtab(x + len, 16, spaced, &buf, &buflen)); - - /* - * RData. - */ - switch (type) { - case ns_t_a: - if (rdlen != NS_INADDRSZ) - goto formerr; - (void) inet_ntop(AF_INET, rdata, buf, buflen); - addlen(strlen(buf), &buf, &buflen); - break; - - case ns_t_cname: - case ns_t_mb: - case ns_t_mg: - case ns_t_mr: - case ns_t_ns: - case ns_t_ptr: - T(addname(msg, msglen, &rdata, origin, &buf, &buflen)); - break; - - case ns_t_hinfo: - case ns_t_isdn: - /* First word. */ - T(len = charstr(rdata, edata, &buf, &buflen)); - if (len == 0) - goto formerr; - rdata += len; - T(addstr(" ", 1, &buf, &buflen)); - - /* Second word. */ - T(len = charstr(rdata, edata, &buf, &buflen)); - if (len == 0) - goto formerr; - rdata += len; - break; - - case ns_t_soa: { - u_long t; - - /* Server name. */ - T(addname(msg, msglen, &rdata, origin, &buf, &buflen)); - T(addstr(" ", 1, &buf, &buflen)); - - /* Administrator name. */ - T(addname(msg, msglen, &rdata, origin, &buf, &buflen)); - T(addstr(" (\n", 3, &buf, &buflen)); - spaced = 0; - - if ((edata - rdata) != 5*NS_INT32SZ) - goto formerr; - - /* Serial number. */ - t = ns_get32(rdata); rdata += NS_INT32SZ; - T(addstr("\t\t\t\t\t", 5, &buf, &buflen)); - len = SPRINTF((tmp, "%lu", t)); - T(addstr(tmp, len, &buf, &buflen)); - T(spaced = addtab(len, 16, spaced, &buf, &buflen)); - T(addstr("; serial\n", 9, &buf, &buflen)); - spaced = 0; - - /* Refresh interval. */ - t = ns_get32(rdata); rdata += NS_INT32SZ; - T(addstr("\t\t\t\t\t", 5, &buf, &buflen)); - T(len = ns_format_ttl(t, buf, buflen)); - addlen(len, &buf, &buflen); - T(spaced = addtab(len, 16, spaced, &buf, &buflen)); - T(addstr("; refresh\n", 10, &buf, &buflen)); - spaced = 0; - - /* Retry interval. */ - t = ns_get32(rdata); rdata += NS_INT32SZ; - T(addstr("\t\t\t\t\t", 5, &buf, &buflen)); - T(len = ns_format_ttl(t, buf, buflen)); - addlen(len, &buf, &buflen); - T(spaced = addtab(len, 16, spaced, &buf, &buflen)); - T(addstr("; retry\n", 8, &buf, &buflen)); - spaced = 0; - - /* Expiry. */ - t = ns_get32(rdata); rdata += NS_INT32SZ; - T(addstr("\t\t\t\t\t", 5, &buf, &buflen)); - T(len = ns_format_ttl(t, buf, buflen)); - addlen(len, &buf, &buflen); - T(spaced = addtab(len, 16, spaced, &buf, &buflen)); - T(addstr("; expiry\n", 9, &buf, &buflen)); - spaced = 0; - - /* Minimum TTL. */ - t = ns_get32(rdata); rdata += NS_INT32SZ; - T(addstr("\t\t\t\t\t", 5, &buf, &buflen)); - T(len = ns_format_ttl(t, buf, buflen)); - addlen(len, &buf, &buflen); - T(addstr(" )", 2, &buf, &buflen)); - T(spaced = addtab(len, 16, spaced, &buf, &buflen)); - T(addstr("; minimum\n", 10, &buf, &buflen)); - - break; - } - - case ns_t_mx: - case ns_t_afsdb: - case ns_t_rt: { - u_int t; - - if (rdlen < NS_INT16SZ) - goto formerr; - - /* Priority. */ - t = ns_get16(rdata); - rdata += NS_INT16SZ; - len = SPRINTF((tmp, "%u ", t)); - T(addstr(tmp, len, &buf, &buflen)); - - /* Target. */ - T(addname(msg, msglen, &rdata, origin, &buf, &buflen)); - - break; - } - - case ns_t_px: { - u_int t; - - if (rdlen < NS_INT16SZ) - goto formerr; - - /* Priority. */ - t = ns_get16(rdata); - rdata += NS_INT16SZ; - len = SPRINTF((tmp, "%u ", t)); - T(addstr(tmp, len, &buf, &buflen)); - - /* Name1. */ - T(addname(msg, msglen, &rdata, origin, &buf, &buflen)); - T(addstr(" ", 1, &buf, &buflen)); - - /* Name2. */ - T(addname(msg, msglen, &rdata, origin, &buf, &buflen)); - - break; - } - - case ns_t_x25: - T(len = charstr(rdata, edata, &buf, &buflen)); - if (len == 0) - goto formerr; - rdata += len; - break; - - case ns_t_txt: - while (rdata < edata) { - T(len = charstr(rdata, edata, &buf, &buflen)); - if (len == 0) - goto formerr; - rdata += len; - if (rdata < edata) - T(addstr(" ", 1, &buf, &buflen)); - } - break; - - case ns_t_nsap: { - char t[255*3]; - - (void) inet_nsap_ntoa(rdlen, rdata, t); - T(addstr(t, strlen(t), &buf, &buflen)); - break; - } - - case ns_t_aaaa: - if (rdlen != NS_IN6ADDRSZ) - goto formerr; - (void) inet_ntop(AF_INET6, rdata, buf, buflen); - addlen(strlen(buf), &buf, &buflen); - break; - - case ns_t_loc: { - char t[255]; - - /* XXX protocol format checking? */ - (void) loc_ntoa(rdata, t); - T(addstr(t, strlen(t), &buf, &buflen)); - break; - } - - case ns_t_naptr: { - u_int order, preference; - char t[50]; - - if (rdlen < 2*NS_INT16SZ) - goto formerr; - - /* Order, Precedence. */ - order = ns_get16(rdata); rdata += NS_INT16SZ; - preference = ns_get16(rdata); rdata += NS_INT16SZ; - len = SPRINTF((t, "%u %u ", order, preference)); - T(addstr(t, len, &buf, &buflen)); - - /* Flags. */ - T(len = charstr(rdata, edata, &buf, &buflen)); - if (len == 0) - goto formerr; - rdata += len; - T(addstr(" ", 1, &buf, &buflen)); - - /* Service. */ - T(len = charstr(rdata, edata, &buf, &buflen)); - if (len == 0) - goto formerr; - rdata += len; - T(addstr(" ", 1, &buf, &buflen)); - - /* Regexp. */ - T(len = charstr(rdata, edata, &buf, &buflen)); - if (len < 0) - return (-1); - if (len == 0) - goto formerr; - rdata += len; - T(addstr(" ", 1, &buf, &buflen)); - - /* Server. */ - T(addname(msg, msglen, &rdata, origin, &buf, &buflen)); - break; - } - - case ns_t_srv: { - u_int priority, weight, port; - char t[50]; - - if (rdlen < NS_INT16SZ*3) - goto formerr; - - /* Priority, Weight, Port. */ - priority = ns_get16(rdata); rdata += NS_INT16SZ; - weight = ns_get16(rdata); rdata += NS_INT16SZ; - port = ns_get16(rdata); rdata += NS_INT16SZ; - len = SPRINTF((t, "%u %u %u ", priority, weight, port)); - T(addstr(t, len, &buf, &buflen)); - - /* Server. */ - T(addname(msg, msglen, &rdata, origin, &buf, &buflen)); - break; - } - - case ns_t_minfo: - case ns_t_rp: - /* Name1. */ - T(addname(msg, msglen, &rdata, origin, &buf, &buflen)); - T(addstr(" ", 1, &buf, &buflen)); - - /* Name2. */ - T(addname(msg, msglen, &rdata, origin, &buf, &buflen)); - - break; - - case ns_t_wks: { - int n, lcnt; - - if (rdlen < NS_INT32SZ + 1) - goto formerr; - - /* Address. */ - (void) inet_ntop(AF_INET, rdata, buf, buflen); - addlen(strlen(buf), &buf, &buflen); - rdata += NS_INADDRSZ; - - /* Protocol. */ - len = SPRINTF((tmp, " %u ( ", *rdata)); - T(addstr(tmp, len, &buf, &buflen)); - rdata += NS_INT8SZ; - - /* Bit map. */ - n = 0; - lcnt = 0; - while (rdata < edata) { - u_int c = *rdata++; - do { - if (c & 0200) { - if (lcnt == 0) { - T(addstr("\n\t\t\t\t", 5, - &buf, &buflen)); - lcnt = 10; - spaced = 0; - } - len = SPRINTF((tmp, "%d ", n)); - T(addstr(tmp, len, &buf, &buflen)); - lcnt--; - } - c <<= 1; - } while (++n & 07); - } - T(addstr(")", 1, &buf, &buflen)); - - break; - } - - case ns_t_key: { - char base64_key[NS_MD5RSA_MAX_BASE64]; - u_int keyflags, protocol, algorithm; - const char *leader; - int n; - - if (rdlen < NS_INT16SZ + NS_INT8SZ + NS_INT8SZ) - goto formerr; - - /* Key flags, Protocol, Algorithm. */ - keyflags = ns_get16(rdata); rdata += NS_INT16SZ; - protocol = *rdata++; - algorithm = *rdata++; - len = SPRINTF((tmp, "0x%04x %u %u", - keyflags, protocol, algorithm)); - T(addstr(tmp, len, &buf, &buflen)); - - /* Public key data. */ - len = b64_ntop(rdata, edata - rdata, - base64_key, sizeof base64_key); - if (len < 0) - goto formerr; - if (len > 15) { - T(addstr(" (", 2, &buf, &buflen)); - leader = "\n\t\t"; - spaced = 0; - } else - leader = " "; - for (n = 0; n < len; n += 48) { - T(addstr(leader, strlen(leader), &buf, &buflen)); - T(addstr(base64_key + n, MIN(len - n, 48), - &buf, &buflen)); - } - if (len > 15) - T(addstr(" )", 2, &buf, &buflen)); - - break; - } - - case ns_t_sig: { - char base64_key[NS_MD5RSA_MAX_BASE64]; - u_int type, algorithm, labels, footprint; - const char *leader; - u_long t; - int n; - - if (rdlen < 22) - goto formerr; - - /* Type covered, Algorithm, Label count, Original TTL. */ - type = ns_get16(rdata); rdata += NS_INT16SZ; - algorithm = *rdata++; - labels = *rdata++; - t = ns_get32(rdata); rdata += NS_INT32SZ; - len = SPRINTF((tmp, " %s %d %lu ", - p_type(type), algorithm, t)); - T(addstr(tmp, len, &buf, &buflen)); - if (labels != (u_int)dn_count_labels(name)) - goto formerr; - - /* Signature expiry. */ - t = ns_get32(rdata); rdata += NS_INT32SZ; - len = SPRINTF((tmp, "%s ", p_secstodate(t))); - T(addstr(tmp, len, &buf, &buflen)); - - /* Time signed. */ - t = ns_get32(rdata); rdata += NS_INT32SZ; - len = SPRINTF((tmp, "%s ", p_secstodate(t))); - T(addstr(tmp, len, &buf, &buflen)); - - /* Signature Footprint. */ - footprint = ns_get16(rdata); rdata += NS_INT16SZ; - len = SPRINTF((tmp, "%u ", footprint)); - T(addstr(tmp, len, &buf, &buflen)); - - /* Signer's name. */ - T(addname(msg, msglen, &rdata, origin, &buf, &buflen)); - - /* Signature. */ - len = b64_ntop(rdata, edata - rdata, - base64_key, sizeof base64_key); - if (len > 15) { - T(addstr(" (", 2, &buf, &buflen)); - leader = "\n\t\t"; - spaced = 0; - } else - leader = " "; - if (len < 0) - goto formerr; - for (n = 0; n < len; n += 48) { - T(addstr(leader, strlen(leader), &buf, &buflen)); - T(addstr(base64_key + n, MIN(len - n, 48), - &buf, &buflen)); - } - if (len > 15) - T(addstr(" )", 2, &buf, &buflen)); - - break; - } - - case ns_t_nxt: { - int n, c; - - /* Next domain name. */ - T(addname(msg, msglen, &rdata, origin, &buf, &buflen)); - - /* Type bit map. */ - n = edata - rdata; - for (c = 0; c < n*8; c++) - if (NS_NXT_BIT_ISSET(c, rdata)) { - len = SPRINTF((tmp, " %s", p_type(c))); - T(addstr(tmp, len, &buf, &buflen)); - } - break; - } - - default: - comment = "unknown RR type"; - goto hexify; - } - return (buf - obuf); - formerr: - comment = "RR format error"; - hexify: { - int n, m; - char *p; - - len = SPRINTF((tmp, "\\#(\t\t; %s", comment)); - T(addstr(tmp, len, &buf, &buflen)); - while (rdata < edata) { - p = tmp; - p += SPRINTF((p, "\n\t")); - spaced = 0; - n = MIN(16, edata - rdata); - for (m = 0; m < n; m++) - p += SPRINTF((p, "%02x ", rdata[m])); - T(addstr(tmp, p - tmp, &buf, &buflen)); - if (n < 16) { - T(addstr(")", 1, &buf, &buflen)); - T(addtab(p - tmp + 1, 48, spaced, &buf, &buflen)); - } - p = tmp; - p += SPRINTF((p, "; ")); - for (m = 0; m < n; m++) - *p++ = (isascii(rdata[m]) && isprint(rdata[m])) - ? rdata[m] - : '.'; - T(addstr(tmp, p - tmp, &buf, &buflen)); - rdata += n; - } - return (buf - obuf); - } -} - -/* Private. */ - -/* - * size_t - * prune_origin(name, origin) - * Find out if the name is at or under the current origin. - * return: - * Number of characters in name before start of origin, - * or length of name if origin does not match. - * notes: - * This function should share code with samedomain(). - */ -static size_t -prune_origin(const char *name, const char *origin) { - const char *oname = name; - - while (*name != '\0') { - if (origin != NULL && strcasecmp(name, origin) == 0) - return (name - oname - (name > oname)); - while (*name != '\0') { - if (*name == '\\') { - name++; - /* XXX need to handle \nnn form. */ - if (*name == '\0') - break; - } else if (*name == '.') { - name++; - break; - } - name++; - } - } - return (name - oname); -} - -/* - * int - * charstr(rdata, edata, buf, buflen) - * Format a <character-string> into the presentation buffer. - * return: - * Number of rdata octets consumed - * 0 for protocol format error - * -1 for output buffer error - * side effects: - * buffer is advanced on success. - */ -static int -charstr(const u_char *rdata, const u_char *edata, char **buf, size_t *buflen) { - const u_char *odata = rdata; - size_t save_buflen = *buflen; - char *save_buf = *buf; - - if (addstr("\"", 1, buf, buflen) < 0) - goto enospc; - if (rdata < edata) { - int n = *rdata; - - if (rdata + 1 + n <= edata) { - rdata++; - while (n-- > 0) { - if (strchr("\n\"\\", *rdata) != NULL) - if (addstr("\\", 1, buf, buflen) < 0) - goto enospc; - if (addstr((const char *)rdata, 1, - buf, buflen) < 0) - goto enospc; - rdata++; - } - } - } - if (addstr("\"", 1, buf, buflen) < 0) - goto enospc; - return (rdata - odata); - enospc: - errno = ENOSPC; - *buf = save_buf; - *buflen = save_buflen; - return (-1); -} - -static int -addname(const u_char *msg, size_t msglen, - const u_char **pp, const char *origin, - char **buf, size_t *buflen) -{ - size_t newlen, save_buflen = *buflen; - char *save_buf = *buf; - int n; - - n = dn_expand(msg, msg + msglen, *pp, *buf, *buflen); - if (n < 0) - goto enospc; /* Guess. */ - newlen = prune_origin(*buf, origin); - if ((origin == NULL || origin[0] == '\0' || (*buf)[newlen] == '\0') && - (newlen == 0 || (*buf)[newlen - 1] != '.')) { - /* No trailing dot. */ - if (newlen + 2 > *buflen) - goto enospc; /* No room for ".\0". */ - (*buf)[newlen++] = '.'; - (*buf)[newlen] = '\0'; - } - if (newlen == 0) { - /* Use "@" instead of name. */ - if (newlen + 2 > *buflen) - goto enospc; /* No room for "@\0". */ - (*buf)[newlen++] = '@'; - (*buf)[newlen] = '\0'; - } - *pp += n; - addlen(newlen, buf, buflen); - **buf = '\0'; - return (newlen); - enospc: - errno = ENOSPC; - *buf = save_buf; - *buflen = save_buflen; - return (-1); -} - -static void -addlen(size_t len, char **buf, size_t *buflen) { - assert(len <= *buflen); - *buf += len; - *buflen -= len; -} - -static int -addstr(const char *src, size_t len, char **buf, size_t *buflen) { - if (len > *buflen) { - errno = ENOSPC; - return (-1); - } - memcpy(*buf, src, len); - addlen(len, buf, buflen); - **buf = '\0'; - return (0); -} - -static int -addtab(size_t len, size_t target, int spaced, char **buf, size_t *buflen) { - size_t save_buflen = *buflen; - char *save_buf = *buf; - int t; - - if (spaced || len >= target - 1) { - T(addstr(" ", 2, buf, buflen)); - spaced = 1; - } else { - for (t = (target - len - 1) / 8; t >= 0; t--) - if (addstr("\t", 1, buf, buflen) < 0) { - *buflen = save_buflen; - *buf = save_buf; - return (-1); - } - spaced = 0; - } - return (spaced); -} diff --git a/lib/libc/net/ns_ttl.c b/lib/libc/net/ns_ttl.c deleted file mode 100644 index 3327d86..0000000 --- a/lib/libc/net/ns_ttl.c +++ /dev/null @@ -1,151 +0,0 @@ -/* - * Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#ifndef lint -static char rcsid[] = "$FreeBSD$"; -#endif - -/* Import. */ - -#include <arpa/nameser.h> - -#include <ctype.h> -#include <errno.h> -#include <stdio.h> -#include <string.h> - -#define SPRINTF(x) ((size_t)sprintf x) - -/* Forward. */ - -static int fmt1(int t, char s, char **buf, size_t *buflen); - -/* Macros. */ - -#define T(x) if ((x) < 0) return (-1); else (void)NULL - -/* Public. */ - -int -ns_format_ttl(u_long src, char *dst, size_t dstlen) { - char *odst = dst; - int secs, mins, hours, days, weeks, x; - char tmp[50], *p; - - secs = src % 60; src /= 60; - mins = src % 60; src /= 60; - hours = src % 24; src /= 24; - days = src % 7; src /= 7; - weeks = src; src = 0; - - x = 0; - if (weeks) { - T(fmt1(weeks, 'W', &dst, &dstlen)); - x++; - } - if (days) { - T(fmt1(days, 'D', &dst, &dstlen)); - x++; - } - if (hours) { - T(fmt1(hours, 'H', &dst, &dstlen)); - x++; - } - if (mins) { - T(fmt1(mins, 'M', &dst, &dstlen)); - x++; - } - if (secs || !(weeks || days || hours || mins)) { - T(fmt1(secs, 'S', &dst, &dstlen)); - x++; - } - - if (x > 1) { - int ch; - - for (p = odst; (ch = *p) != '\0'; p++) - if (isascii(ch) && isupper(ch)) - *p = tolower(ch); - } - - return (dst - odst); -} - -int -ns_parse_ttl(const char *src, u_long *dst) { - u_long ttl, tmp; - int ch, digits, dirty; - - ttl = 0; - tmp = 0; - digits = 0; - dirty = 0; - while ((ch = *src++) != '\0') { - if (!isascii(ch) || !isprint(ch)) - goto einval; - if (isdigit(ch)) { - tmp *= 10; - tmp += (ch - '0'); - digits++; - continue; - } - if (digits == 0) - goto einval; - if (islower(ch)) - ch = toupper(ch); - switch (ch) { - case 'W': tmp *= 7; - case 'D': tmp *= 24; - case 'H': tmp *= 60; - case 'M': tmp *= 60; - case 'S': break; - default: goto einval; - } - ttl += tmp; - tmp = 0; - digits = 0; - dirty = 1; - } - if (digits > 0) { - if (dirty) - goto einval; - else - ttl += tmp; - } - *dst = ttl; - return (0); - - einval: - errno = EINVAL; - return (-1); -} - -/* Private. */ - -static int -fmt1(int t, char s, char **buf, size_t *buflen) { - char tmp[50]; - size_t len; - - len = SPRINTF((tmp, "%d%c", t, s)); - if (len + 1 > *buflen) - return (-1); - strcpy(*buf, tmp); - *buf += len; - *buflen -= len; - return (0); -} diff --git a/lib/libc/net/nsap_addr.c b/lib/libc/net/nsap_addr.c deleted file mode 100644 index 1f16fd2..0000000 --- a/lib/libc/net/nsap_addr.c +++ /dev/null @@ -1,114 +0,0 @@ -/* - * Copyright (c) 1996, 1998 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/param.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> -#include <ctype.h> -#include <resolv.h> - -static char -xtob(c) - register int c; -{ - return (c - (((c >= '0') && (c <= '9')) ? '0' : '7')); -} - -u_int -inet_nsap_addr(ascii, binary, maxlen) - const char *ascii; - u_char *binary; - int maxlen; -{ - u_char c, nib; - u_int len = 0; - - while ((c = *ascii++) != '\0' && len < (u_int)maxlen) { - if (c == '.' || c == '+' || c == '/') - continue; - if (!isascii(c)) - return (0); - if (islower(c)) - c = toupper(c); - if (isxdigit(c)) { - nib = xtob(c); - c = *ascii++; - if (c != '\0') { - c = toupper(c); - if (isxdigit(c)) { - *binary++ = (nib << 4) | xtob(c); - len++; - } else - return (0); - } - else - return (0); - } - else - return (0); - } - return (len); -} - -char * -inet_nsap_ntoa(binlen, binary, ascii) - int binlen; - register const u_char *binary; - register char *ascii; -{ - register int nib; - int i; - static char tmpbuf[255*3]; - char *start; - - if (ascii) - start = ascii; - else { - ascii = tmpbuf; - start = tmpbuf; - } - - if (binlen > 255) - binlen = 255; - - for (i = 0; i < binlen; i++) { - nib = *binary >> 4; - *ascii++ = nib + (nib < 10 ? '0' : '7'); - nib = *binary++ & 0x0f; - *ascii++ = nib + (nib < 10 ? '0' : '7'); - if (((i % 2) == 0 && (i + 1) < binlen)) - *ascii++ = '.'; - } - *ascii = '\0'; - return (start); -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <arpa/inet.h>. - */ -#undef inet_nsap_addr -__weak_reference(__inet_nsap_addr, inet_nsap_addr); -#undef inet_nsap_ntoa -__weak_reference(__inet_nsap_ntoa, inet_nsap_ntoa); diff --git a/lib/libc/net/rcmd.3 b/lib/libc/net/rcmd.3 deleted file mode 100644 index c16cddf..0000000 --- a/lib/libc/net/rcmd.3 +++ /dev/null @@ -1,293 +0,0 @@ -.\" Copyright (c) 1983, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" From: @(#)rcmd.3 8.1 (Berkeley) 6/4/93 -.\" $FreeBSD$ -.\" -.Dd March 3, 2000 -.Dt RCMD 3 -.Os BSD 4.2 -.Sh NAME -.Nm rcmd , -.Nm rresvport , -.Nm iruserok , -.Nm ruserok , -.Nm rcmd_af , -.Nm rresvport_af , -.Nm iruserok_sa -.Nd routines for returning a stream to a remote command -.Sh SYNOPSIS -.Fd #include <unistd.h> -.Ft int -.Fn rcmd "char **ahost" "int inport" "const char *locuser" "const char *remuser" "const char *cmd" "int *fd2p" -.Ft int -.Fn rresvport "int *port" -.Ft int -.Fn iruserok "u_long raddr" "int superuser" "const char *ruser" "const char *luser" -.Ft int -.Fn ruserok "const char *rhost" "int superuser" "const char *ruser" "const char *luser" -.Ft int -.Fn rcmd_af "char **ahost" "int inport" "const char *locuser" "const char *remuser" "const char *cmd" "int *fd2p" "int af" -.Ft int -.Fn rresvport_af "int *port" "int af" -.Ft int -.Fn iruserok_sa "const void *addr" "int addrlen" "int superuser" "const char *ruser" "const char *luser" -.Sh DESCRIPTION -The -.Fn rcmd -function -is used by the super-user to execute a command on -a remote machine using an authentication scheme based -on reserved port numbers. -The -.Fn rresvport -function -returns a descriptor to a socket -with an address in the privileged port space. -The -.Fn ruserok -function -is used by servers -to authenticate clients requesting service with -.Fn rcmd . -All three functions are present in the same file and are used -by the -.Xr rshd 8 -server (among others). -.Pp -The -.Fn rcmd -function -looks up the host -.Fa *ahost -using -.Xr gethostbyname 3 , -returning -1 if the host does not exist. -Otherwise -.Fa *ahost -is set to the standard name of the host -and a connection is established to a server -residing at the well-known Internet port -.Fa inport . -.Pp -If the connection succeeds, -a socket in the Internet domain of type -.Dv SOCK_STREAM -is returned to the caller, and given to the remote -command as -.Em stdin -and -.Em stdout . -If -.Fa fd2p -is non-zero, then an auxiliary channel to a control -process will be set up, and a descriptor for it will be placed -in -.Fa *fd2p . -The control process will return diagnostic -output from the command (unit 2) on this channel, and will also -accept bytes on this channel as being -.Tn UNIX -signal numbers, to be -forwarded to the process group of the command. -If -.Fa fd2p -is 0, then the -.Em stderr -(unit 2 of the remote -command) will be made the same as the -.Em stdout -and no -provision is made for sending arbitrary signals to the remote process, -although you may be able to get its attention by using out-of-band data. -.Pp -The protocol is described in detail in -.Xr rshd 8 . -.Pp -The -.Fn rresvport -function is used to obtain a socket to which an address with a Privileged -Internet port is bound. -This socket is suitable for use by -.Fn rcmd -and several other functions. -Privileged Internet ports are those in the range 0 to 1023. -Only the super-user is allowed to bind an address of this sort -to a socket. -.Pp -The -.Fn iruserok -and -.Fn ruserok -functions take a remote host's IP address or name, as returned by the -.Xr gethostbyname 3 -routines, two user names and a flag indicating whether the local user's -name is that of the super-user. -Then, if the user is -.Em NOT -the super-user, it checks the -.Pa /etc/hosts.equiv -file. -If that lookup is not done, or is unsuccessful, the -.Pa .rhosts -in the local user's home directory is checked to see if the request for -service is allowed. -.Pp -If this file does not exist, is not a regular file, is owned by anyone -other than the user or the super-user, or is writable by anyone other -than the owner, the check automatically fails. -Zero is returned if the machine name is listed in the -.Dq Pa hosts.equiv -file, or the host and remote user name are found in the -.Dq Pa .rhosts -file; otherwise -.Fn iruserok -and -.Fn ruserok -return -1. -If the local domain (as obtained from -.Xr gethostname 3 ) -is the same as the remote domain, only the machine name need be specified. -.Pp -The -.Fn iruserok -function is strongly preferred for security reasons. -It requires trusting the local DNS at most, while the -.Fn ruserok -function requires trusting the entire DNS, which can be spoofed. -.Pp -The functions with an -.Dq Li _af -or -.Dq Li _sa -suffix, i.e., -.Fn rcmd_af , -.Fn rresvport_af -and -.Fn iruserok_sa , -work the same as the corresponding functions without a -suffix, except that they are capable of handling both IPv6 and IPv4 ports. -.Pp -The -.Dq Li _af -suffix means that the function has an additional -.Fa af -argument which is used to specify the address family, -(see below). -The -.Fa af -argument extension is implemented for functions -that have no binary address argument. -Instead, the -.Fa af -argument specifies which address family is desired. -.Pp -The -.Dq Li _sa -suffix means that the function has general socket address and -length arguments. -As the socket address is a protocol independent data structure, -IPv4 and IPv6 socket address can be passed as desired. -The -.Fa sa -argument extension is implemented for functions -that pass a protocol dependent binary address argument. -The argument needs to be replaced with a more general address structure -to support multiple address families in a general way. -.Pp -The functions with neither an -.Dq Li _af -suffix nor an -.Dq Li _sa -suffix work for IPv4 only, except for -.Fn ruserok -which can handle both IPv6 and IPv4. -To switch the address family, the -.Fa af -argument must be filled with -.Dv AF_INET , -or -.Dv AF_INET6 . -For -.Fn rcmd_af , -.Dv PF_UNSPEC -is also allowed. -.Sh DIAGNOSTICS -The -.Fn rcmd -function -returns a valid socket descriptor on success. -It returns -1 on error and prints a diagnostic message -on the standard error. -.Pp -The -.Fn rresvport -function -returns a valid, bound socket descriptor on success. -It returns -1 on error with the global value -.Va errno -set according to the reason for failure. -The error code -.Dv EAGAIN -is overloaded to mean ``All network ports in use.'' -.Sh SEE ALSO -.Xr rlogin 1 , -.Xr rsh 1 , -.Xr intro 2 , -.Xr rexec 3 , -.Xr rexecd 8 , -.Xr rlogind 8 , -.Xr rshd 8 -.Pp -.Rs -.%A W. Stevens and M. Thomas -.%T "Advanced Socket API for IPv6" -.%O RFC2292 -.Re -.Rs -.%A W. Stevens, M. Thomas and E. Nordmark -.%T "Advanced Socket API for IPv6" -.%O draft-ietf-ipngwg-rfc2292bis-01.txt -.Re -.Sh HISTORY -Most of these -functions appeared in -.Bx 4.2 . -.Fn rresvport_af -appeared in RFC2292, and was implemented by the WIDE project -for the Hydrangea IPv6 protocol stack kit. -.Fn rcmd_af -appeared in draft-ietf-ipngwg-rfc2292bis-01.txt, -and was implemented in the WIDE/KAME IPv6 protocol stack kit. -.Fn iruserok_sa -appeared in discussion on the IETF ipngwg mailing list, -and was implemented in -.Fx 4.0 . diff --git a/lib/libc/net/rcmd.c b/lib/libc/net/rcmd.c deleted file mode 100644 index 5bbef4b..0000000 --- a/lib/libc/net/rcmd.c +++ /dev/null @@ -1,693 +0,0 @@ -/* - * Copyright (c) 1983, 1993, 1994 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)rcmd.c 8.3 (Berkeley) 3/26/94"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> -#include <sys/socket.h> -#include <sys/stat.h> - -#include <netinet/in.h> -#include <arpa/inet.h> - -#include <signal.h> -#include <fcntl.h> -#include <netdb.h> -#include <unistd.h> -#include <pwd.h> -#include <errno.h> -#include <stdio.h> -#include <ctype.h> -#include <string.h> -#ifdef YP -#include <rpc/rpc.h> -#include <rpcsvc/yp_prot.h> -#include <rpcsvc/ypclnt.h> -#endif - -/* wrapper for KAME-special getnameinfo() */ -#ifndef NI_WITHSCOPEID -#define NI_WITHSCOPEID 0 -#endif - -extern int innetgr __P(( const char *, const char *, const char *, const char * )); - -#define max(a, b) ((a > b) ? a : b) - -static int __iruserok_af __P((void *, int, const char *, const char *, int)); -int __ivaliduser __P((FILE *, u_int32_t, const char *, const char *)); -static int __icheckhost __P((void *, char *, int, int)); - -char paddr[INET6_ADDRSTRLEN]; - -int -rcmd(ahost, rport, locuser, remuser, cmd, fd2p) - char **ahost; - u_short rport; - const char *locuser, *remuser, *cmd; - int *fd2p; -{ - return rcmd_af(ahost, rport, locuser, remuser, cmd, fd2p, AF_INET); -} - -int -rcmd_af(ahost, rport, locuser, remuser, cmd, fd2p, af) - char **ahost; - u_short rport; - const char *locuser, *remuser, *cmd; - int *fd2p; - int af; -{ - struct addrinfo hints, *res, *ai; - struct sockaddr_storage from; - fd_set reads; - long oldmask; - pid_t pid; - int s, aport, lport, timo, error; - char c; - int refused; - char num[8]; - - pid = getpid(); - - memset(&hints, 0, sizeof(hints)); - hints.ai_flags = AI_CANONNAME; - hints.ai_family = af; - hints.ai_socktype = SOCK_STREAM; - hints.ai_protocol = 0; - (void)snprintf(num, sizeof(num), "%d", ntohs(rport)); - error = getaddrinfo(*ahost, num, &hints, &res); - if (error) { - fprintf(stderr, "rcmd: getaddrinfo: %s\n", - gai_strerror(error)); - if (error == EAI_SYSTEM) - fprintf(stderr, "rcmd: getaddrinfo: %s\n", - strerror(errno)); - return (-1); - } - if (res->ai_canonname) - *ahost = res->ai_canonname; - ai = res; - refused = 0; - oldmask = sigblock(sigmask(SIGURG)); - for (timo = 1, lport = IPPORT_RESERVED - 1;;) { - s = rresvport_af(&lport, ai->ai_family); - if (s < 0) { - if (errno != EAGAIN && ai->ai_next) { - ai = ai->ai_next; - continue; - } - if (errno == EAGAIN) - (void)fprintf(stderr, - "rcmd: socket: All ports in use\n"); - else - (void)fprintf(stderr, "rcmd: socket: %s\n", - strerror(errno)); - freeaddrinfo(res); - sigsetmask(oldmask); - return (-1); - } - _fcntl(s, F_SETOWN, pid); - if (connect(s, ai->ai_addr, ai->ai_addrlen) >= 0) - break; - (void)_close(s); - if (errno == EADDRINUSE) { - lport--; - continue; - } - if (errno == ECONNREFUSED) - refused = 1; - if (ai->ai_next != NULL) { - int oerrno = errno; - - getnameinfo(ai->ai_addr, ai->ai_addrlen, - paddr, sizeof(paddr), - NULL, 0, - NI_NUMERICHOST|NI_WITHSCOPEID); - (void)fprintf(stderr, "connect to address %s: ", - paddr); - errno = oerrno; - perror(0); - ai = ai->ai_next; - getnameinfo(ai->ai_addr, ai->ai_addrlen, - paddr, sizeof(paddr), - NULL, 0, - NI_NUMERICHOST|NI_WITHSCOPEID); - fprintf(stderr, "Trying %s...\n", paddr); - continue; - } - if (refused && timo <= 16) { - struct timespec time_to_sleep, time_remaining; - - time_to_sleep.tv_sec = timo; - time_to_sleep.tv_nsec = 0; - (void)_nanosleep(&time_to_sleep, &time_remaining); - - timo *= 2; - ai = res; - refused = 0; - continue; - } - freeaddrinfo(res); - (void)fprintf(stderr, "%s: %s\n", *ahost, strerror(errno)); - sigsetmask(oldmask); - return (-1); - } - lport--; - if (fd2p == 0) { - _write(s, "", 1); - lport = 0; - } else { - char num[8]; - int s2 = rresvport_af(&lport, ai->ai_family), s3; - int len = ai->ai_addrlen; - int nfds; - - if (s2 < 0) - goto bad; - listen(s2, 1); - (void)snprintf(num, sizeof(num), "%d", lport); - if (_write(s, num, strlen(num)+1) != strlen(num)+1) { - (void)fprintf(stderr, - "rcmd: write (setting up stderr): %s\n", - strerror(errno)); - (void)_close(s2); - goto bad; - } - nfds = max(s, s2)+1; - if(nfds > FD_SETSIZE) { - fprintf(stderr, "rcmd: too many files\n"); - (void)_close(s2); - goto bad; - } -again: - FD_ZERO(&reads); - FD_SET(s, &reads); - FD_SET(s2, &reads); - errno = 0; - if (select(nfds, &reads, 0, 0, 0) < 1 || !FD_ISSET(s2, &reads)){ - if (errno != 0) - (void)fprintf(stderr, - "rcmd: select (setting up stderr): %s\n", - strerror(errno)); - else - (void)fprintf(stderr, - "select: protocol failure in circuit setup\n"); - (void)_close(s2); - goto bad; - } - s3 = accept(s2, (struct sockaddr *)&from, &len); - switch (from.ss_family) { - case AF_INET: - aport = ntohs(((struct sockaddr_in *)&from)->sin_port); - break; -#ifdef INET6 - case AF_INET6: - aport = ntohs(((struct sockaddr_in6 *)&from)->sin6_port); - break; -#endif - default: - aport = 0; /* error */ - break; - } - /* - * XXX careful for ftp bounce attacks. If discovered, shut them - * down and check for the real auxiliary channel to connect. - */ - if (aport == 20) { - _close(s3); - goto again; - } - (void)_close(s2); - if (s3 < 0) { - (void)fprintf(stderr, - "rcmd: accept: %s\n", strerror(errno)); - lport = 0; - goto bad; - } - *fd2p = s3; - if (aport >= IPPORT_RESERVED || aport < IPPORT_RESERVED / 2) { - (void)fprintf(stderr, - "socket: protocol failure in circuit setup.\n"); - goto bad2; - } - } - (void)_write(s, locuser, strlen(locuser)+1); - (void)_write(s, remuser, strlen(remuser)+1); - (void)_write(s, cmd, strlen(cmd)+1); - if (_read(s, &c, 1) != 1) { - (void)fprintf(stderr, - "rcmd: %s: %s\n", *ahost, strerror(errno)); - goto bad2; - } - if (c != 0) { - while (_read(s, &c, 1) == 1) { - (void)_write(STDERR_FILENO, &c, 1); - if (c == '\n') - break; - } - goto bad2; - } - sigsetmask(oldmask); - freeaddrinfo(res); - return (s); -bad2: - if (lport) - (void)_close(*fd2p); -bad: - (void)_close(s); - sigsetmask(oldmask); - freeaddrinfo(res); - return (-1); -} - -int -rresvport(port) - int *port; -{ - return rresvport_af(port, AF_INET); -} - -int -rresvport_af(alport, family) - int *alport, family; -{ - int i, s, len, err; - struct sockaddr_storage ss; - u_short *sport; - - memset(&ss, 0, sizeof(ss)); - ss.ss_family = family; - switch (family) { - case AF_INET: - ((struct sockaddr *)&ss)->sa_len = sizeof(struct sockaddr_in); - sport = &((struct sockaddr_in *)&ss)->sin_port; - ((struct sockaddr_in *)&ss)->sin_addr.s_addr = INADDR_ANY; - break; -#ifdef INET6 - case AF_INET6: - ((struct sockaddr *)&ss)->sa_len = sizeof(struct sockaddr_in6); - sport = &((struct sockaddr_in6 *)&ss)->sin6_port; - ((struct sockaddr_in6 *)&ss)->sin6_addr = in6addr_any; - break; -#endif - default: - errno = EAFNOSUPPORT; - return -1; - } - - s = socket(ss.ss_family, SOCK_STREAM, 0); - if (s < 0) - return (-1); -#if 0 /* compat_exact_traditional_rresvport_semantics */ - sin.sin_port = htons((u_short)*alport); - if (bind(s, (struct sockaddr *)&sin, sizeof(sin)) >= 0) - return (s); - if (errno != EADDRINUSE) { - (void)_close(s); - return (-1); - } -#endif - *sport = 0; - if (bindresvport_sa(s, (struct sockaddr *)&ss) == -1) { - (void)_close(s); - return (-1); - } - *alport = (int)ntohs(*sport); - return (s); -} - -int __check_rhosts_file = 1; -char *__rcmd_errstr; - -int -ruserok(rhost, superuser, ruser, luser) - const char *rhost, *ruser, *luser; - int superuser; -{ - struct addrinfo hints, *res, *r; - int error; - - memset(&hints, 0, sizeof(hints)); - hints.ai_family = PF_UNSPEC; - hints.ai_socktype = SOCK_DGRAM; /*dummy*/ - error = getaddrinfo(rhost, "0", &hints, &res); - if (error) - return (-1); - - for (r = res; r; r = r->ai_next) { - if (iruserok_sa(r->ai_addr, r->ai_addrlen, superuser, ruser, - luser) == 0) { - freeaddrinfo(res); - return (0); - } - } - freeaddrinfo(res); - return (-1); -} - -/* - * New .rhosts strategy: We are passed an ip address. We spin through - * hosts.equiv and .rhosts looking for a match. When the .rhosts only - * has ip addresses, we don't have to trust a nameserver. When it - * contains hostnames, we spin through the list of addresses the nameserver - * gives us and look for a match. - * - * Returns 0 if ok, -1 if not ok. - */ -int -iruserok(raddr, superuser, ruser, luser) - unsigned long raddr; - int superuser; - const char *ruser, *luser; -{ - return __iruserok_af(&raddr, superuser, ruser, luser, AF_INET); -} - -/* Other AF support extension of iruserok. */ -static int -__iruserok_af(raddr, superuser, ruser, luser, af) - void *raddr; - int superuser; - const char *ruser, *luser; - int af; -{ - register char *cp; - struct stat sbuf; - struct passwd *pwd; - FILE *hostf; - uid_t uid; - int first; - char pbuf[MAXPATHLEN]; - int len = 0; - - switch (af) { - case AF_INET: - len = sizeof(struct in_addr); - break; -#ifdef INET6 - case AF_INET6: - len = sizeof(struct in6_addr); - break; -#endif - } - - first = 1; - hostf = superuser ? NULL : fopen(_PATH_HEQUIV, "r"); -again: - if (hostf) { - if (__ivaliduser_af(hostf, raddr, luser, ruser, af, len) - == 0) { - (void)fclose(hostf); - return (0); - } - (void)fclose(hostf); - } - if (first == 1 && (__check_rhosts_file || superuser)) { - first = 0; - if ((pwd = getpwnam(luser)) == NULL) - return (-1); - (void)strcpy(pbuf, pwd->pw_dir); - (void)strcat(pbuf, "/.rhosts"); - - /* - * Change effective uid while opening .rhosts. If root and - * reading an NFS mounted file system, can't read files that - * are protected read/write owner only. - */ - uid = geteuid(); - (void)seteuid(pwd->pw_uid); - hostf = fopen(pbuf, "r"); - (void)seteuid(uid); - - if (hostf == NULL) - return (-1); - /* - * If not a regular file, or is owned by someone other than - * user or root or if writeable by anyone but the owner, quit. - */ - cp = NULL; - if (lstat(pbuf, &sbuf) < 0) - cp = ".rhosts lstat failed"; - else if (!S_ISREG(sbuf.st_mode)) - cp = ".rhosts not regular file"; - else if (fstat(fileno(hostf), &sbuf) < 0) - cp = ".rhosts fstat failed"; - else if (sbuf.st_uid && sbuf.st_uid != pwd->pw_uid) - cp = "bad .rhosts owner"; - else if (sbuf.st_mode & (S_IWGRP|S_IWOTH)) - cp = ".rhosts writeable by other than owner"; - /* If there were any problems, quit. */ - if (cp) { - __rcmd_errstr = cp; - (void)fclose(hostf); - return (-1); - } - goto again; - } - return (-1); -} - -/* - * AF independent extension of iruserok. We are passed an sockaddr, and - * then call iruserok_af() as the type of sockaddr. - * - * Returns 0 if ok, -1 if not ok. - */ -int -iruserok_sa(addr, addrlen, superuser, ruser, luser) - const void *addr; - int addrlen; - int superuser; - const char *ruser, *luser; -{ - struct sockaddr *sa; - void *raddr = NULL; - - sa = (struct sockaddr *)addr; - switch (sa->sa_family) { - case AF_INET: - raddr = &((struct sockaddr_in *)sa)->sin_addr; - break; -#ifdef INET6 - case AF_INET6: - raddr = &((struct sockaddr_in6 *)sa)->sin6_addr; - break; -#endif - } - - __iruserok_af(raddr, superuser, ruser, luser, sa->sa_family); -} - -/* - * XXX - * Don't make static, used by lpd(8). - * - * Returns 0 if ok, -1 if not ok. - */ -int -__ivaliduser(hostf, raddr, luser, ruser) - FILE *hostf; - u_int32_t raddr; - const char *luser, *ruser; -{ - return __ivaliduser_af(hostf, &raddr, luser, ruser, AF_INET, - sizeof(raddr)); -} - -int -__ivaliduser_af(hostf, raddr, luser, ruser, af, len) - FILE *hostf; - void *raddr; - const char *luser, *ruser; - int af, len; -{ - register char *user, *p; - int ch; - char buf[MAXHOSTNAMELEN + 128]; /* host + login */ - char hname[MAXHOSTNAMELEN]; - struct hostent *hp; - /* Presumed guilty until proven innocent. */ - int userok = 0, hostok = 0; - int h_error; -#ifdef YP - char *ypdomain; - - if (yp_get_default_domain(&ypdomain)) - ypdomain = NULL; -#else -#define ypdomain NULL -#endif - /* We need to get the damn hostname back for netgroup matching. */ - if ((hp = getipnodebyaddr((char *)raddr, len, af, &h_error)) == NULL) - return (-1); - strncpy(hname, hp->h_name, sizeof(hname)); - hname[sizeof(hname) - 1] = '\0'; - freehostent(hp); - - while (fgets(buf, sizeof(buf), hostf)) { - p = buf; - /* Skip lines that are too long. */ - if (strchr(p, '\n') == NULL) { - while ((ch = getc(hostf)) != '\n' && ch != EOF); - continue; - } - if (*p == '\n' || *p == '#') { - /* comment... */ - continue; - } - while (*p != '\n' && *p != ' ' && *p != '\t' && *p != '\0') { - *p = isupper((unsigned char)*p) ? tolower((unsigned char)*p) : *p; - p++; - } - if (*p == ' ' || *p == '\t') { - *p++ = '\0'; - while (*p == ' ' || *p == '\t') - p++; - user = p; - while (*p != '\n' && *p != ' ' && - *p != '\t' && *p != '\0') - p++; - } else - user = p; - *p = '\0'; - /* - * Do +/- and +@/-@ checking. This looks really nasty, - * but it matches SunOS's behavior so far as I can tell. - */ - switch(buf[0]) { - case '+': - if (!buf[1]) { /* '+' matches all hosts */ - hostok = 1; - break; - } - if (buf[1] == '@') /* match a host by netgroup */ - hostok = innetgr((char *)&buf[2], - (char *)&hname, NULL, ypdomain); - else /* match a host by addr */ - hostok = __icheckhost(raddr,(char *)&buf[1], - af, len); - break; - case '-': /* reject '-' hosts and all their users */ - if (buf[1] == '@') { - if (innetgr((char *)&buf[2], - (char *)&hname, NULL, ypdomain)) - return(-1); - } else { - if (__icheckhost(raddr,(char *)&buf[1],af,len)) - return(-1); - } - break; - default: /* if no '+' or '-', do a simple match */ - hostok = __icheckhost(raddr, buf, af, len); - break; - } - switch(*user) { - case '+': - if (!*(user+1)) { /* '+' matches all users */ - userok = 1; - break; - } - if (*(user+1) == '@') /* match a user by netgroup */ - userok = innetgr(user+2, NULL, ruser, ypdomain); - else /* match a user by direct specification */ - userok = !(strcmp(ruser, user+1)); - break; - case '-': /* if we matched a hostname, */ - if (hostok) { /* check for user field rejections */ - if (!*(user+1)) - return(-1); - if (*(user+1) == '@') { - if (innetgr(user+2, NULL, - ruser, ypdomain)) - return(-1); - } else { - if (!strcmp(ruser, user+1)) - return(-1); - } - } - break; - default: /* no rejections: try to match the user */ - if (hostok) - userok = !(strcmp(ruser,*user ? user : luser)); - break; - } - if (hostok && userok) - return(0); - } - return (-1); -} - -/* - * Returns "true" if match, 0 if no match. - */ -static int -__icheckhost(raddr, lhost, af, len) - void *raddr; - register char *lhost; - int af, len; -{ - register struct hostent *hp; - char laddr[BUFSIZ]; /* xxx */ - register char **pp; - int h_error; - int match; - - /* Try for raw ip address first. */ - if (inet_pton(af, lhost, laddr) == 1) { - if (memcmp(raddr, laddr, len) == 0) - return (1); - else - return (0); - } - - /* Better be a hostname. */ - if ((hp = getipnodebyname(lhost, af, AI_ALL|AI_DEFAULT, &h_error)) - == NULL) - return (0); - - /* Spin through ip addresses. */ - match = 0; - for (pp = hp->h_addr_list; *pp; ++pp) - if (!bcmp(raddr, *pp, len)) { - match = 1; - break; - } - - freehostent(hp); - return (match); -} diff --git a/lib/libc/net/recv.c b/lib/libc/net/recv.c deleted file mode 100644 index 65ec9d4..0000000 --- a/lib/libc/net/recv.c +++ /dev/null @@ -1,50 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)recv.c 8.2 (Berkeley) 2/21/94"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/socket.h> - -#include <stddef.h> - -ssize_t -recv(s, buf, len, flags) - int s, flags; - size_t len; - void *buf; -{ - return (recvfrom(s, buf, len, flags, NULL, 0)); -} diff --git a/lib/libc/net/res_comp.c b/lib/libc/net/res_comp.c deleted file mode 100644 index 0d237ac..0000000 --- a/lib/libc/net/res_comp.c +++ /dev/null @@ -1,267 +0,0 @@ -/* - * Copyright (c) 1985, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* - * Portions Copyright (c) 1993 by Digital Equipment Corporation. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies, and that - * the name of Digital Equipment Corporation not be used in advertising or - * publicity pertaining to distribution of the document or software without - * specific, written prior permission. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT - * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -/* - * Portions Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)res_comp.c 8.1 (Berkeley) 6/4/93"; -static char orig_rcsid[] = "From: Id: res_comp.c,v 8.11 1997/05/21 19:31:04 halley Exp $"; -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/param.h> -#include <netinet/in.h> -#include <arpa/nameser.h> -#include <ctype.h> -#include <resolv.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> - -#define BIND_4_COMPAT - -/* - * Expand compressed domain name 'comp_dn' to full domain name. - * 'msg' is a pointer to the begining of the message, - * 'eomorig' points to the first location after the message, - * 'exp_dn' is a pointer to a buffer of size 'length' for the result. - * Return size of compressed name or -1 if there was an error. - */ -int -dn_expand(const u_char *msg, const u_char *eom, const u_char *src, - char *dst, int dstsiz) -{ - int n = ns_name_uncompress(msg, eom, src, dst, (size_t)dstsiz); - - if (n > 0 && dst[0] == '.') - dst[0] = '\0'; - return (n); -} - -/* - * Pack domain name 'exp_dn' in presentation form into 'comp_dn'. - * Return the size of the compressed name or -1. - * 'length' is the size of the array pointed to by 'comp_dn'. - */ -int -dn_comp(const char *src, u_char *dst, int dstsiz, - u_char **dnptrs, u_char **lastdnptr) -{ - return (ns_name_compress(src, dst, (size_t)dstsiz, - (const u_char **)dnptrs, - (const u_char **)lastdnptr)); -} - -/* - * Skip over a compressed domain name. Return the size or -1. - */ -int -dn_skipname(const u_char *ptr, const u_char *eom) { - const u_char *saveptr = ptr; - - if (ns_name_skip(&ptr, eom) == -1) - return (-1); - return (ptr - saveptr); -} - -/* - * Verify that a domain name uses an acceptable character set. - */ - -/* - * Note the conspicuous absence of ctype macros in these definitions. On - * non-ASCII hosts, we can't depend on string literals or ctype macros to - * tell us anything about network-format data. The rest of the BIND system - * is not careful about this, but for some reason, we're doing it right here. - */ -#define PERIOD 0x2e -#define hyphenchar(c) ((c) == 0x2d) -#define bslashchar(c) ((c) == 0x5c) -#define periodchar(c) ((c) == PERIOD) -#define asterchar(c) ((c) == 0x2a) -#define alphachar(c) (((c) >= 0x41 && (c) <= 0x5a) \ - || ((c) >= 0x61 && (c) <= 0x7a)) -#define digitchar(c) ((c) >= 0x30 && (c) <= 0x39) - -#define borderchar(c) (alphachar(c) || digitchar(c)) -#define middlechar(c) (borderchar(c) || hyphenchar(c)) -#define domainchar(c) ((c) > 0x20 && (c) < 0x7f) - -int -res_hnok(dn) - const char *dn; -{ - int ppch = '\0', pch = PERIOD, ch = *dn++; - - while (ch != '\0') { - int nch = *dn++; - - if (periodchar(ch)) { - (void)NULL; - } else if (periodchar(pch)) { - if (!borderchar(ch)) - return (0); - } else if (periodchar(nch) || nch == '\0') { - if (!borderchar(ch)) - return (0); - } else { - if (!middlechar(ch)) - return (0); - } - ppch = pch, pch = ch, ch = nch; - } - return (1); -} - -/* - * hostname-like (A, MX, WKS) owners can have "*" as their first label - * but must otherwise be as a host name. - */ -int -res_ownok(dn) - const char *dn; -{ - if (asterchar(dn[0])) { - if (periodchar(dn[1])) - return (res_hnok(dn+2)); - if (dn[1] == '\0') - return (1); - } - return (res_hnok(dn)); -} - -/* - * SOA RNAMEs and RP RNAMEs can have any printable character in their first - * label, but the rest of the name has to look like a host name. - */ -int -res_mailok(dn) - const char *dn; -{ - int ch, escaped = 0; - - /* "." is a valid missing representation */ - if (*dn == '\0') - return (1); - - /* otherwise <label>.<hostname> */ - while ((ch = *dn++) != '\0') { - if (!domainchar(ch)) - return (0); - if (!escaped && periodchar(ch)) - break; - if (escaped) - escaped = 0; - else if (bslashchar(ch)) - escaped = 1; - } - if (periodchar(ch)) - return (res_hnok(dn)); - return (0); -} - -/* - * This function is quite liberal, since RFC 1034's character sets are only - * recommendations. - */ -int -res_dnok(dn) - const char *dn; -{ - int ch; - - while ((ch = *dn++) != '\0') - if (!domainchar(ch)) - return (0); - return (1); -} - -#ifdef BIND_4_COMPAT -/* - * This module must export the following externally-visible symbols: - * ___putlong - * ___putshort - * __getlong - * __getshort - * Note that one _ comes from C and the others come from us. - */ -void __putlong(u_int32_t src, u_char *dst) { ns_put32(src, dst); } -void __putshort(u_int16_t src, u_char *dst) { ns_put16(src, dst); } -u_int32_t _getlong(const u_char *src) { return (ns_get32(src)); } -u_int16_t _getshort(const u_char *src) { return (ns_get16(src)); } -#endif /*BIND_4_COMPAT*/ - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <resolv.h>. - */ -#undef dn_comp -__weak_reference(__dn_comp, dn_comp); -#undef dn_expand -__weak_reference(__dn_expand, dn_expand); diff --git a/lib/libc/net/res_config.h b/lib/libc/net/res_config.h deleted file mode 100644 index 644e7d7..0000000 --- a/lib/libc/net/res_config.h +++ /dev/null @@ -1,8 +0,0 @@ -#define DEBUG 1 /* enable debugging code (needed for dig) */ -#define RESOLVSORT /* allow sorting of addresses in gethostbyname */ -#define RFC1535 /* comply with RFC1535 (STRONGLY reccomended by vixie)*/ -#undef USELOOPBACK /* res_init() bind to localhost */ -#undef SUNSECURITY /* verify gethostbyaddr() calls - WE DONT NEED IT */ -#define MULTI_PTRS_ARE_ALIASES 1 /* fold multiple PTR records into aliases */ -#define CHECK_SRVR_ADDR 1 /* confirm that the server requested sent the reply */ -#define BIND_UPDATE 1 /* update support */ diff --git a/lib/libc/net/res_data.c b/lib/libc/net/res_data.c deleted file mode 100644 index 501ca32..0000000 --- a/lib/libc/net/res_data.c +++ /dev/null @@ -1,83 +0,0 @@ -/* - * Copyright (c) 1995,1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/param.h> -#include <sys/socket.h> -#include <sys/time.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> -#include <ctype.h> -#include <resolv.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "res_config.h" - -const char *_res_opcodes[] = { - "QUERY", - "IQUERY", - "CQUERYM", - "CQUERYU", /* experimental */ - "NOTIFY", /* experimental */ - "UPDATE", - "6", - "7", - "8", - "9", - "10", - "11", - "12", - "13", - "ZONEINIT", - "ZONEREF", -}; - -const char *_res_resultcodes[] = { - "NOERROR", - "FORMERR", - "SERVFAIL", - "NXDOMAIN", - "NOTIMP", - "REFUSED", - "YXDOMAIN", - "YXRRSET", - "NXRRSET", - "NOTAUTH", - "ZONEERR", - "11", - "12", - "13", - "14", - "NOCHANGE", -}; - -#ifdef BIND_UPDATE -const char *_res_sectioncodes[] = { - "ZONE", - "PREREQUISITES", - "UPDATE", - "ADDITIONAL", -}; -#endif diff --git a/lib/libc/net/res_debug.c b/lib/libc/net/res_debug.c deleted file mode 100644 index 16033f2..0000000 --- a/lib/libc/net/res_debug.c +++ /dev/null @@ -1,987 +0,0 @@ -/* - * Copyright (c) 1985 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* - * Portions Copyright (c) 1993 by Digital Equipment Corporation. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies, and that - * the name of Digital Equipment Corporation not be used in advertising or - * publicity pertaining to distribution of the document or software without - * specific, written prior permission. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT - * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -/* - * Portions Copyright (c) 1995 by International Business Machines, Inc. - * - * International Business Machines, Inc. (hereinafter called IBM) grants - * permission under its copyrights to use, copy, modify, and distribute this - * Software with or without fee, provided that the above copyright notice and - * all paragraphs of this notice appear in all copies, and that the name of IBM - * not be used in connection with the marketing of any product incorporating - * the Software or modifications thereof, without specific, written prior - * permission. - * - * To the extent it has a right to do so, IBM grants an immunity from suit - * under its patents, if any, for the use, sale or manufacture of products to - * the extent that such products are used for performing Domain Name System - * dynamic updates in TCP/IP networks by means of the Software. No immunity is - * granted for any product per se or for any other function of any product. - * - * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A - * PARTICULAR PURPOSE. IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL, - * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN - * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES. - */ - -/* - * Portions Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)res_debug.c 8.1 (Berkeley) 6/4/93"; -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/param.h> -#include <sys/socket.h> - -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> - -#include <ctype.h> -#include <errno.h> -#include <math.h> -#include <netdb.h> -#include <resolv.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> - -#define SPRINTF(x) sprintf x - -extern const char *_res_opcodes[]; -extern const char *_res_resultcodes[]; -extern const char *_res_sectioncodes[]; - -/* - * Print the current options. - */ -void -fp_resstat(struct __res_state *statp, FILE *file) { - u_long mask; - - fprintf(file, ";; res options:"); - if (!statp) - statp = &_res; - for (mask = 1; mask != 0; mask <<= 1) - if (statp->options & mask) - fprintf(file, " %s", p_option(mask)); - putc('\n', file); -} - -static void -do_section(ns_msg *handle, ns_sect section, int pflag, FILE *file) { - int n, sflag, rrnum; - char buf[2048]; /* XXX need to malloc */ - ns_opcode opcode; - ns_rr rr; - - /* - * Print answer records. - */ - sflag = (_res.pfcode & pflag); - if (_res.pfcode && !sflag) - return; - - opcode = ns_msg_getflag(*handle, ns_f_opcode); - rrnum = 0; - for (;;) { - if (ns_parserr(handle, section, rrnum, &rr)) { - if (errno != ENODEV) - fprintf(file, ";; ns_parserr: %s\n", - strerror(errno)); - else if (rrnum > 0 && sflag != 0 && - (_res.pfcode & RES_PRF_HEAD1)) - putc('\n', file); - return; - } - if (rrnum == 0 && sflag != 0 && (_res.pfcode & RES_PRF_HEAD1)) - fprintf(file, ";; %s SECTION:\n", - p_section(section, opcode)); - if (section == ns_s_qd) - fprintf(file, ";;\t%s, type = %s, class = %s\n", - ns_rr_name(rr), - p_type(ns_rr_type(rr)), - p_class(ns_rr_class(rr))); - else { - n = ns_sprintrr(handle, &rr, NULL, NULL, - buf, sizeof buf); - if (n < 0) { - fprintf(file, ";; ns_sprintrr: %s\n", - strerror(errno)); - return; - } - fputs(buf, file); - fputc('\n', file); - } - rrnum++; - } -} - -void -p_query(const u_char *msg) { - fp_query(msg, stdout); -} - -void -fp_query(const u_char *msg, FILE *file) { - fp_nquery(msg, PACKETSZ, file); -} - -/* - * Print the contents of a query. - * This is intended to be primarily a debugging routine. - */ -void -fp_nquery(const u_char *msg, int len, FILE *file) { - ns_msg handle; - int n, qdcount, ancount, nscount, arcount; - u_int opcode, rcode, id; - - if ((_res.options & RES_INIT) == 0 && res_init() == -1) - return; - - if (ns_initparse(msg, len, &handle) < 0) { - fprintf(file, ";; ns_initparse: %s\n", strerror(errno)); - return; - } - opcode = ns_msg_getflag(handle, ns_f_opcode); - rcode = ns_msg_getflag(handle, ns_f_rcode); - id = ns_msg_id(handle); - qdcount = ns_msg_count(handle, ns_s_qd); - ancount = ns_msg_count(handle, ns_s_an); - nscount = ns_msg_count(handle, ns_s_ns); - arcount = ns_msg_count(handle, ns_s_ar); - - /* - * Print header fields. - */ - if ((!_res.pfcode) || (_res.pfcode & RES_PRF_HEADX) || rcode) - fprintf(file, - ";; ->>HEADER<<- opcode: %s, status: %s, id: %d\n", - _res_opcodes[opcode], _res_resultcodes[rcode], id); - if ((!_res.pfcode) || (_res.pfcode & RES_PRF_HEADX)) - putc(';', file); - if ((!_res.pfcode) || (_res.pfcode & RES_PRF_HEAD2)) { - fprintf(file, "; flags:"); - if (ns_msg_getflag(handle, ns_f_qr)) - fprintf(file, " qr"); - if (ns_msg_getflag(handle, ns_f_aa)) - fprintf(file, " aa"); - if (ns_msg_getflag(handle, ns_f_tc)) - fprintf(file, " tc"); - if (ns_msg_getflag(handle, ns_f_rd)) - fprintf(file, " rd"); - if (ns_msg_getflag(handle, ns_f_ra)) - fprintf(file, " ra"); - if (ns_msg_getflag(handle, ns_f_z)) - fprintf(file, " ??"); - if (ns_msg_getflag(handle, ns_f_ad)) - fprintf(file, " ad"); - if (ns_msg_getflag(handle, ns_f_cd)) - fprintf(file, " cd"); - } - if ((!_res.pfcode) || (_res.pfcode & RES_PRF_HEAD1)) { - fprintf(file, "; %s: %d", - p_section(ns_s_qd, opcode), qdcount); - fprintf(file, ", %s: %d", - p_section(ns_s_an, opcode), ancount); - fprintf(file, ", %s: %d", - p_section(ns_s_ns, opcode), nscount); - fprintf(file, ", %s: %d", - p_section(ns_s_ar, opcode), arcount); - } - if ((!_res.pfcode) || (_res.pfcode & - (RES_PRF_HEADX | RES_PRF_HEAD2 | RES_PRF_HEAD1))) { - putc('\n',file); - } - /* - * Print the various sections. - */ - do_section(&handle, ns_s_qd, RES_PRF_QUES, file); - do_section(&handle, ns_s_an, RES_PRF_ANS, file); - do_section(&handle, ns_s_ns, RES_PRF_AUTH, file); - do_section(&handle, ns_s_ar, RES_PRF_ADD, file); - if (qdcount == 0 && ancount == 0 && - nscount == 0 && arcount == 0) - putc('\n', file); -} - -const u_char * -p_cdnname(const u_char *cp, const u_char *msg, int len, FILE *file) { - char name[MAXDNAME]; - int n; - - if ((n = dn_expand(msg, msg + len, cp, name, sizeof name)) < 0) - return (NULL); - if (name[0] == '\0') - putc('.', file); - else - fputs(name, file); - return (cp + n); -} - -const u_char * -p_cdname(const u_char *cp, const u_char *msg, FILE *file) { - return (p_cdnname(cp, msg, PACKETSZ, file)); -} - -/* Return a fully-qualified domain name from a compressed name (with - length supplied). */ - -const u_char * -p_fqnname(cp, msg, msglen, name, namelen) - const u_char *cp, *msg; - int msglen; - char *name; - int namelen; -{ - int n, newlen; - - if ((n = dn_expand(msg, cp + msglen, cp, name, namelen)) < 0) - return (NULL); - newlen = strlen(name); - if (newlen == 0 || name[newlen - 1] != '.') { - if (newlen + 1 >= namelen) /* Lack space for final dot */ - return (NULL); - else - strcpy(name + newlen, "."); - } - return (cp + n); -} - -/* XXX: the rest of these functions need to become length-limited, too. */ - -const u_char * -p_fqname(const u_char *cp, const u_char *msg, FILE *file) { - char name[MAXDNAME]; - const u_char *n; - - n = p_fqnname(cp, msg, MAXCDNAME, name, sizeof name); - if (n == NULL) - return (NULL); - fputs(name, file); - return (n); -} - -/* - * Names of RR classes and qclasses. Classes and qclasses are the same, except - * that C_ANY is a qclass but not a class. (You can ask for records of class - * C_ANY, but you can't have any records of that class in the database.) - */ -const struct res_sym __p_class_syms[] = { - {C_IN, "IN"}, - {C_CHAOS, "CHAOS"}, - {C_HS, "HS"}, - {C_HS, "HESIOD"}, - {C_ANY, "ANY"}, - {C_NONE, "NONE"}, - {C_IN, (char *)0} -}; - -/* - * Names of message sections. - */ -const struct res_sym __p_default_section_syms[] = { - {ns_s_qd, "QUERY"}, - {ns_s_an, "ANSWER"}, - {ns_s_ns, "AUTHORITY"}, - {ns_s_ar, "ADDITIONAL"}, - {0, (char *)0} -}; - -const struct res_sym __p_update_section_syms[] = { - {S_ZONE, "ZONE"}, - {S_PREREQ, "PREREQUISITE"}, - {S_UPDATE, "UPDATE"}, - {S_ADDT, "ADDITIONAL"}, - {0, (char *)0} -}; - -/* - * Names of RR types and qtypes. Types and qtypes are the same, except - * that T_ANY is a qtype but not a type. (You can ask for records of type - * T_ANY, but you can't have any records of that type in the database.) - */ -const struct res_sym __p_type_syms[] = { - {T_A, "A", "address"}, - {T_NS, "NS", "name server"}, - {T_MD, "MD", "mail destination (deprecated)"}, - {T_MF, "MF", "mail forwarder (deprecated)"}, - {T_CNAME, "CNAME", "canonical name"}, - {T_SOA, "SOA", "start of authority"}, - {T_MB, "MB", "mailbox"}, - {T_MG, "MG", "mail group member"}, - {T_MR, "MR", "mail rename"}, - {T_NULL, "NULL", "null"}, - {T_WKS, "WKS", "well-known service (deprecated)"}, - {T_PTR, "PTR", "domain name pointer"}, - {T_HINFO, "HINFO", "host information"}, - {T_MINFO, "MINFO", "mailbox information"}, - {T_MX, "MX", "mail exchanger"}, - {T_TXT, "TXT", "text"}, - {T_RP, "RP", "responsible person"}, - {T_AFSDB, "AFSDB", "DCE or AFS server"}, - {T_X25, "X25", "X25 address"}, - {T_ISDN, "ISDN", "ISDN address"}, - {T_RT, "RT", "router"}, - {T_NSAP, "NSAP", "nsap address"}, - {T_NSAP_PTR, "NSAP_PTR", "domain name pointer"}, - {T_SIG, "SIG", "signature"}, - {T_KEY, "KEY", "key"}, - {T_PX, "PX", "mapping information"}, - {T_GPOS, "GPOS", "geographical position (withdrawn)"}, - {T_AAAA, "AAAA", "IPv6 address"}, - {T_LOC, "LOC", "location"}, - {T_NXT, "NXT", "next valid name (unimplemented)"}, - {T_EID, "EID", "endpoint identifier (unimplemented)"}, - {T_NIMLOC, "NIMLOC", "NIMROD locator (unimplemented)"}, - {T_SRV, "SRV", "server selection"}, - {T_ATMA, "ATMA", "ATM address (unimplemented)"}, - {T_IXFR, "IXFR", "incremental zone transfer"}, - {T_AXFR, "AXFR", "zone transfer"}, - {T_MAILB, "MAILB", "mailbox-related data (deprecated)"}, - {T_MAILA, "MAILA", "mail agent (deprecated)"}, - {T_NAPTR, "NAPTR", "URN Naming Authority"}, - {T_ANY, "ANY", "\"any\""}, - {0, NULL, NULL} -}; - -int -sym_ston(const struct res_sym *syms, const char *name, int *success) { - for ((void)NULL; syms->name != 0; syms++) { - if (strcasecmp (name, syms->name) == 0) { - if (success) - *success = 1; - return (syms->number); - } - } - if (success) - *success = 0; - return (syms->number); /* The default value. */ -} - -const char * -sym_ntos(const struct res_sym *syms, int number, int *success) { - static char unname[20]; - - for ((void)NULL; syms->name != 0; syms++) { - if (number == syms->number) { - if (success) - *success = 1; - return (syms->name); - } - } - - sprintf(unname, "%d", number); - if (success) - *success = 0; - return (unname); -} - -const char * -sym_ntop(const struct res_sym *syms, int number, int *success) { - static char unname[20]; - - for ((void)NULL; syms->name != 0; syms++) { - if (number == syms->number) { - if (success) - *success = 1; - return (syms->humanname); - } - } - sprintf(unname, "%d", number); - if (success) - *success = 0; - return (unname); -} - -/* - * Return a string for the type. - */ -const char * -p_type(int type) { - return (sym_ntos(__p_type_syms, type, (int *)0)); -} - -/* - * Return a string for the type. - */ -const char * -p_section(int section, int opcode) { - const struct res_sym *symbols; - - switch (opcode) { - case ns_o_update: - symbols = __p_update_section_syms; - break; - default: - symbols = __p_default_section_syms; - break; - } - return (sym_ntos(symbols, section, (int *)0)); -} - -/* - * Return a mnemonic for class. - */ -const char * -p_class(int class) { - return (sym_ntos(__p_class_syms, class, (int *)0)); -} - -/* - * Return a mnemonic for an option - */ -const char * -p_option(u_long option) { - static char nbuf[40]; - - switch (option) { - case RES_INIT: return "init"; - case RES_DEBUG: return "debug"; - case RES_AAONLY: return "aaonly(unimpl)"; - case RES_USEVC: return "usevc"; - case RES_PRIMARY: return "primry(unimpl)"; - case RES_IGNTC: return "igntc"; - case RES_RECURSE: return "recurs"; - case RES_DEFNAMES: return "defnam"; - case RES_STAYOPEN: return "styopn"; - case RES_DNSRCH: return "dnsrch"; - case RES_INSECURE1: return "insecure1"; - case RES_INSECURE2: return "insecure2"; - default: sprintf(nbuf, "?0x%lx?", (u_long)option); - return (nbuf); - } -} - -/* - * Return a mnemonic for a time to live. - */ -const char * -p_time(u_int32_t value) { - static char nbuf[40]; - - if (ns_format_ttl(value, nbuf, sizeof nbuf) < 0) - sprintf(nbuf, "%u", value); - return (nbuf); -} - - -/* - * routines to convert between on-the-wire RR format and zone file format. - * Does not contain conversion to/from decimal degrees; divide or multiply - * by 60*60*1000 for that. - */ - -static unsigned int poweroften[10] = {1, 10, 100, 1000, 10000, 100000, - 1000000,10000000,100000000,1000000000}; - -/* takes an XeY precision/size value, returns a string representation. */ -static const char * -precsize_ntoa(prec) - u_int8_t prec; -{ - static char retbuf[sizeof "90000000.00"]; - unsigned long val; - int mantissa, exponent; - - mantissa = (int)((prec >> 4) & 0x0f) % 10; - exponent = (int)((prec >> 0) & 0x0f) % 10; - - val = mantissa * poweroften[exponent]; - - (void) sprintf(retbuf, "%ld.%.2ld", val/100, val%100); - return (retbuf); -} - -/* converts ascii size/precision X * 10**Y(cm) to 0xXY. moves pointer. */ -static u_int8_t -precsize_aton(strptr) - char **strptr; -{ - unsigned int mval = 0, cmval = 0; - u_int8_t retval = 0; - char *cp; - int exponent; - int mantissa; - - cp = *strptr; - - while (isdigit((unsigned char)*cp)) - mval = mval * 10 + (*cp++ - '0'); - - if (*cp == '.') { /* centimeters */ - cp++; - if (isdigit((unsigned char)*cp)) { - cmval = (*cp++ - '0') * 10; - if (isdigit((unsigned char)*cp)) { - cmval += (*cp++ - '0'); - } - } - } - cmval = (mval * 100) + cmval; - - for (exponent = 0; exponent < 9; exponent++) - if (cmval < poweroften[exponent+1]) - break; - - mantissa = cmval / poweroften[exponent]; - if (mantissa > 9) - mantissa = 9; - - retval = (mantissa << 4) | exponent; - - *strptr = cp; - - return (retval); -} - -/* converts ascii lat/lon to unsigned encoded 32-bit number. moves pointer. */ -static u_int32_t -latlon2ul(latlonstrptr,which) - char **latlonstrptr; - int *which; -{ - char *cp; - u_int32_t retval; - int deg = 0, min = 0, secs = 0, secsfrac = 0; - - cp = *latlonstrptr; - - while (isdigit((unsigned char)*cp)) - deg = deg * 10 + (*cp++ - '0'); - - while (isspace((unsigned char)*cp)) - cp++; - - if (!(isdigit((unsigned char)*cp))) - goto fndhemi; - - while (isdigit((unsigned char)*cp)) - min = min * 10 + (*cp++ - '0'); - - while (isspace((unsigned char)*cp)) - cp++; - - if (!(isdigit((unsigned char)*cp))) - goto fndhemi; - - while (isdigit((unsigned char)*cp)) - secs = secs * 10 + (*cp++ - '0'); - - if (*cp == '.') { /* decimal seconds */ - cp++; - if (isdigit((unsigned char)*cp)) { - secsfrac = (*cp++ - '0') * 100; - if (isdigit((unsigned char)*cp)) { - secsfrac += (*cp++ - '0') * 10; - if (isdigit((unsigned char)*cp)) { - secsfrac += (*cp++ - '0'); - } - } - } - } - - while (!isspace((unsigned char)*cp)) /* if any trailing garbage */ - cp++; - - while (isspace((unsigned char)*cp)) - cp++; - - fndhemi: - switch (*cp) { - case 'N': case 'n': - case 'E': case 'e': - retval = ((unsigned)1<<31) - + (((((deg * 60) + min) * 60) + secs) * 1000) - + secsfrac; - break; - case 'S': case 's': - case 'W': case 'w': - retval = ((unsigned)1<<31) - - (((((deg * 60) + min) * 60) + secs) * 1000) - - secsfrac; - break; - default: - retval = 0; /* invalid value -- indicates error */ - break; - } - - switch (*cp) { - case 'N': case 'n': - case 'S': case 's': - *which = 1; /* latitude */ - break; - case 'E': case 'e': - case 'W': case 'w': - *which = 2; /* longitude */ - break; - default: - *which = 0; /* error */ - break; - } - - cp++; /* skip the hemisphere */ - - while (!isspace((unsigned char)*cp)) /* if any trailing garbage */ - cp++; - - while (isspace((unsigned char)*cp)) /* move to next field */ - cp++; - - *latlonstrptr = cp; - - return (retval); -} - -/* converts a zone file representation in a string to an RDATA on-the-wire - * representation. */ -int -loc_aton(ascii, binary) - const char *ascii; - u_char *binary; -{ - const char *cp, *maxcp; - u_char *bcp; - - u_int32_t latit = 0, longit = 0, alt = 0; - u_int32_t lltemp1 = 0, lltemp2 = 0; - int altmeters = 0, altfrac = 0, altsign = 1; - u_int8_t hp = 0x16; /* default = 1e6 cm = 10000.00m = 10km */ - u_int8_t vp = 0x13; /* default = 1e3 cm = 10.00m */ - u_int8_t siz = 0x12; /* default = 1e2 cm = 1.00m */ - int which1 = 0, which2 = 0; - - cp = ascii; - maxcp = cp + strlen(ascii); - - lltemp1 = latlon2ul(&cp, &which1); - - lltemp2 = latlon2ul(&cp, &which2); - - switch (which1 + which2) { - case 3: /* 1 + 2, the only valid combination */ - if ((which1 == 1) && (which2 == 2)) { /* normal case */ - latit = lltemp1; - longit = lltemp2; - } else if ((which1 == 2) && (which2 == 1)) { /* reversed */ - longit = lltemp1; - latit = lltemp2; - } else { /* some kind of brokenness */ - return (0); - } - break; - default: /* we didn't get one of each */ - return (0); - } - - /* altitude */ - if (*cp == '-') { - altsign = -1; - cp++; - } - - if (*cp == '+') - cp++; - - while (isdigit((unsigned char)*cp)) - altmeters = altmeters * 10 + (*cp++ - '0'); - - if (*cp == '.') { /* decimal meters */ - cp++; - if (isdigit((unsigned char)*cp)) { - altfrac = (*cp++ - '0') * 10; - if (isdigit((unsigned char)*cp)) { - altfrac += (*cp++ - '0'); - } - } - } - - alt = (10000000 + (altsign * (altmeters * 100 + altfrac))); - - while (!isspace((unsigned char)*cp) && (cp < maxcp)) /* if trailing garbage or m */ - cp++; - - while (isspace((unsigned char)*cp) && (cp < maxcp)) - cp++; - - if (cp >= maxcp) - goto defaults; - - siz = precsize_aton(&cp); - - while (!isspace((unsigned char)*cp) && (cp < maxcp)) /* if trailing garbage or m */ - cp++; - - while (isspace((unsigned char)*cp) && (cp < maxcp)) - cp++; - - if (cp >= maxcp) - goto defaults; - - hp = precsize_aton(&cp); - - while (!isspace((unsigned char)*cp) && (cp < maxcp)) /* if trailing garbage or m */ - cp++; - - while (isspace((unsigned char)*cp) && (cp < maxcp)) - cp++; - - if (cp >= maxcp) - goto defaults; - - vp = precsize_aton(&cp); - - defaults: - - bcp = binary; - *bcp++ = (u_int8_t) 0; /* version byte */ - *bcp++ = siz; - *bcp++ = hp; - *bcp++ = vp; - PUTLONG(latit,bcp); - PUTLONG(longit,bcp); - PUTLONG(alt,bcp); - - return (16); /* size of RR in octets */ -} - -/* takes an on-the-wire LOC RR and formats it in a human readable format. */ -const char * -loc_ntoa(binary, ascii) - const u_char *binary; - char *ascii; -{ - static char *error = "?"; - const u_char *cp = binary; - - int latdeg, latmin, latsec, latsecfrac; - int longdeg, longmin, longsec, longsecfrac; - char northsouth, eastwest; - int altmeters, altfrac, altsign; - - const u_int32_t referencealt = 100000 * 100; - - int32_t latval, longval, altval; - u_int32_t templ; - u_int8_t sizeval, hpval, vpval, versionval; - - char *sizestr, *hpstr, *vpstr; - - versionval = *cp++; - - if (versionval) { - (void) sprintf(ascii, "; error: unknown LOC RR version"); - return (ascii); - } - - sizeval = *cp++; - - hpval = *cp++; - vpval = *cp++; - - GETLONG(templ, cp); - latval = (templ - ((unsigned)1<<31)); - - GETLONG(templ, cp); - longval = (templ - ((unsigned)1<<31)); - - GETLONG(templ, cp); - if (templ < referencealt) { /* below WGS 84 spheroid */ - altval = referencealt - templ; - altsign = -1; - } else { - altval = templ - referencealt; - altsign = 1; - } - - if (latval < 0) { - northsouth = 'S'; - latval = -latval; - } else - northsouth = 'N'; - - latsecfrac = latval % 1000; - latval = latval / 1000; - latsec = latval % 60; - latval = latval / 60; - latmin = latval % 60; - latval = latval / 60; - latdeg = latval; - - if (longval < 0) { - eastwest = 'W'; - longval = -longval; - } else - eastwest = 'E'; - - longsecfrac = longval % 1000; - longval = longval / 1000; - longsec = longval % 60; - longval = longval / 60; - longmin = longval % 60; - longval = longval / 60; - longdeg = longval; - - altfrac = altval % 100; - altmeters = (altval / 100) * altsign; - - if ((sizestr = strdup(precsize_ntoa(sizeval))) == NULL) - sizestr = error; - if ((hpstr = strdup(precsize_ntoa(hpval))) == NULL) - hpstr = error; - if ((vpstr = strdup(precsize_ntoa(vpval))) == NULL) - vpstr = error; - - sprintf(ascii, - "%d %.2d %.2d.%.3d %c %d %.2d %.2d.%.3d %c %d.%.2dm %sm %sm %sm", - latdeg, latmin, latsec, latsecfrac, northsouth, - longdeg, longmin, longsec, longsecfrac, eastwest, - altmeters, altfrac, sizestr, hpstr, vpstr); - - if (sizestr != error) - free(sizestr); - if (hpstr != error) - free(hpstr); - if (vpstr != error) - free(vpstr); - - return (ascii); -} - - -/* Return the number of DNS hierarchy levels in the name. */ -int -dn_count_labels(const char *name) { - int i, len, count; - - len = strlen(name); - for (i = 0, count = 0; i < len; i++) { - /* XXX need to check for \. or use named's nlabels(). */ - if (name[i] == '.') - count++; - } - - /* don't count initial wildcard */ - if (name[0] == '*') - if (count) - count--; - - /* don't count the null label for root. */ - /* if terminating '.' not found, must adjust */ - /* count to include last label */ - if (len > 0 && name[len-1] != '.') - count++; - return (count); -} - - -/* - * Make dates expressed in seconds-since-Jan-1-1970 easy to read. - * SIG records are required to be printed like this, by the Secure DNS RFC. - */ -char * -p_secstodate (u_long secs) { - static char output[15]; /* YYYYMMDDHHMMSS and null */ - time_t clock = secs; - struct tm *time; - - time = gmtime(&clock); - time->tm_year += 1900; - time->tm_mon += 1; - sprintf(output, "%04d%02d%02d%02d%02d%02d", - time->tm_year, time->tm_mon, time->tm_mday, - time->tm_hour, time->tm_min, time->tm_sec); - return (output); -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <resolv.h>. - */ -#undef fp_resstat -__weak_reference(__fp_resstat, fp_resstat); -#undef p_query -__weak_reference(__p_query, p_query); -#undef p_fqnname -__weak_reference(__p_fqnname, p_fqnname); -#undef sym_ston -__weak_reference(__sym_ston, sym_ston); -#undef sym_ntos -__weak_reference(__sym_ntos, sym_ntos); -#undef sym_ntop -__weak_reference(__sym_ntop, sym_ntop); -#undef dn_count_labels -__weak_reference(__dn_count_labels, dn_count_labels); -#undef p_secstodate -__weak_reference(__p_secstodate, p_secstodate); diff --git a/lib/libc/net/res_init.c b/lib/libc/net/res_init.c deleted file mode 100644 index d1e6249..0000000 --- a/lib/libc/net/res_init.c +++ /dev/null @@ -1,551 +0,0 @@ -/* - * Copyright (c) 1985, 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* - * Portions Copyright (c) 1993 by Digital Equipment Corporation. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies, and that - * the name of Digital Equipment Corporation not be used in advertising or - * publicity pertaining to distribution of the document or software without - * specific, written prior permission. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT - * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -/* - * Portions Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)res_init.c 8.1 (Berkeley) 6/7/93"; -static char orig_rcsid[] = "From: Id: res_init.c,v 8.7 1996/11/18 09:10:04 vixie Exp $"; -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/param.h> -#include <sys/socket.h> -#include <sys/time.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> -#include <ctype.h> -#include <resolv.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "res_config.h" - -static void res_setoptions __P((char *, char *)); - -#ifdef RESOLVSORT -static const char sort_mask[] = "/&"; -#define ISSORTMASK(ch) (strchr(sort_mask, ch) != NULL) -static u_int32_t net_mask __P((struct in_addr)); -#endif - -#if !defined(isascii) /* XXX - could be a function */ -# define isascii(c) (!(c & 0200)) -#endif - -/* - * Resolver state default settings. - */ - -struct __res_state _res -# if defined(__BIND_RES_TEXT) - = { RES_TIMEOUT, } /* Motorola, et al. */ -# endif - ; - -#ifdef INET6 -struct __res_state_ext _res_ext; -#endif /* INET6 */ - -/* - * Set up default settings. If the configuration file exist, the values - * there will have precedence. Otherwise, the server address is set to - * INADDR_ANY and the default domain name comes from the gethostname(). - * - * An interrim version of this code (BIND 4.9, pre-4.4BSD) used 127.0.0.1 - * rather than INADDR_ANY ("0.0.0.0") as the default name server address - * since it was noted that INADDR_ANY actually meant ``the first interface - * you "ifconfig"'d at boot time'' and if this was a SLIP or PPP interface, - * it had to be "up" in order for you to reach your own name server. It - * was later decided that since the recommended practice is to always - * install local static routes through 127.0.0.1 for all your network - * interfaces, that we could solve this problem without a code change. - * - * The configuration file should always be used, since it is the only way - * to specify a default domain. If you are running a server on your local - * machine, you should say "nameserver 0.0.0.0" or "nameserver 127.0.0.1" - * in the configuration file. - * - * Return 0 if completes successfully, -1 on error - */ -int -res_init() -{ - register FILE *fp; - register char *cp, **pp; - register int n; - char buf[MAXDNAME]; - int nserv = 0; /* number of nameserver records read from file */ - int haveenv = 0; - int havesearch = 0; -#ifdef RESOLVSORT - int nsort = 0; - char *net; -#endif -#ifndef RFC1535 - int dots; -#endif - - /* - * These three fields used to be statically initialized. This made - * it hard to use this code in a shared library. It is necessary, - * now that we're doing dynamic initialization here, that we preserve - * the old semantics: if an application modifies one of these three - * fields of _res before res_init() is called, res_init() will not - * alter them. Of course, if an application is setting them to - * _zero_ before calling res_init(), hoping to override what used - * to be the static default, we can't detect it and unexpected results - * will follow. Zero for any of these fields would make no sense, - * so one can safely assume that the applications were already getting - * unexpected results. - * - * _res.options is tricky since some apps were known to diddle the bits - * before res_init() was first called. We can't replicate that semantic - * with dynamic initialization (they may have turned bits off that are - * set in RES_DEFAULT). Our solution is to declare such applications - * "broken". They could fool us by setting RES_INIT but none do (yet). - */ - if (!_res.retrans) - _res.retrans = RES_TIMEOUT; - if (!_res.retry) - _res.retry = 4; - if (!(_res.options & RES_INIT)) - _res.options = RES_DEFAULT; - - /* - * This one used to initialize implicitly to zero, so unless the app - * has set it to something in particular, we can randomize it now. - */ - if (!_res.id) - _res.id = res_randomid(); - -#ifdef USELOOPBACK - _res.nsaddr.sin_addr = inet_makeaddr(IN_LOOPBACKNET, 1); -#else - _res.nsaddr.sin_addr.s_addr = INADDR_ANY; -#endif - _res.nsaddr.sin_family = AF_INET; - _res.nsaddr.sin_port = htons(NAMESERVER_PORT); - _res.nscount = 1; - _res.ndots = 1; - _res.pfcode = 0; - - /* Allow user to override the local domain definition */ - if (issetugid() == 0 && (cp = getenv("LOCALDOMAIN")) != NULL) { - (void)strncpy(_res.defdname, cp, sizeof(_res.defdname) - 1); - _res.defdname[sizeof(_res.defdname) - 1] = '\0'; - haveenv++; - - /* - * Set search list to be blank-separated strings - * from rest of env value. Permits users of LOCALDOMAIN - * to still have a search list, and anyone to set the - * one that they want to use as an individual (even more - * important now that the rfc1535 stuff restricts searches) - */ - cp = _res.defdname; - pp = _res.dnsrch; - *pp++ = cp; - for (n = 0; *cp && pp < _res.dnsrch + MAXDNSRCH; cp++) { - if (*cp == '\n') /* silly backwards compat */ - break; - else if (*cp == ' ' || *cp == '\t') { - *cp = 0; - n = 1; - } else if (n) { - *pp++ = cp; - n = 0; - havesearch = 1; - } - } - /* null terminate last domain if there are excess */ - while (*cp != '\0' && *cp != ' ' && *cp != '\t' && *cp != '\n') - cp++; - *cp = '\0'; - *pp++ = 0; - } - -#define MATCH(line, name) \ - (!strncmp(line, name, sizeof(name) - 1) && \ - (line[sizeof(name) - 1] == ' ' || \ - line[sizeof(name) - 1] == '\t')) - - if ((fp = fopen(_PATH_RESCONF, "r")) != NULL) { - /* read the config file */ - while (fgets(buf, sizeof(buf), fp) != NULL) { - /* skip comments */ - if (*buf == ';' || *buf == '#') - continue; - /* read default domain name */ - if (MATCH(buf, "domain")) { - if (haveenv) /* skip if have from environ */ - continue; - cp = buf + sizeof("domain") - 1; - while (*cp == ' ' || *cp == '\t') - cp++; - if ((*cp == '\0') || (*cp == '\n')) - continue; - strncpy(_res.defdname, cp, sizeof(_res.defdname) - 1); - _res.defdname[sizeof(_res.defdname) - 1] = '\0'; - if ((cp = strpbrk(_res.defdname, " \t\n")) != NULL) - *cp = '\0'; - havesearch = 0; - continue; - } - /* set search list */ - if (MATCH(buf, "search")) { - if (haveenv) /* skip if have from environ */ - continue; - cp = buf + sizeof("search") - 1; - while (*cp == ' ' || *cp == '\t') - cp++; - if ((*cp == '\0') || (*cp == '\n')) - continue; - strncpy(_res.defdname, cp, sizeof(_res.defdname) - 1); - _res.defdname[sizeof(_res.defdname) - 1] = '\0'; - if ((cp = strchr(_res.defdname, '\n')) != NULL) - *cp = '\0'; - /* - * Set search list to be blank-separated strings - * on rest of line. - */ - cp = _res.defdname; - pp = _res.dnsrch; - *pp++ = cp; - for (n = 0; *cp && pp < _res.dnsrch + MAXDNSRCH; cp++) { - if (*cp == ' ' || *cp == '\t') { - *cp = 0; - n = 1; - } else if (n) { - *pp++ = cp; - n = 0; - } - } - /* null terminate last domain if there are excess */ - while (*cp != '\0' && *cp != ' ' && *cp != '\t') - cp++; - *cp = '\0'; - *pp++ = 0; - havesearch = 1; - continue; - } - /* read nameservers to query */ - if (MATCH(buf, "nameserver") && nserv < MAXNS) { - struct in_addr a; - - cp = buf + sizeof("nameserver") - 1; - while (*cp == ' ' || *cp == '\t') - cp++; - if ((*cp != '\0') && (*cp != '\n') && inet_aton(cp, &a)) { - _res.nsaddr_list[nserv].sin_addr = a; - _res.nsaddr_list[nserv].sin_family = AF_INET; - _res.nsaddr_list[nserv].sin_port = - htons(NAMESERVER_PORT); - nserv++; - } - continue; - } -#ifdef RESOLVSORT - if (MATCH(buf, "sortlist")) { - struct in_addr a; -#ifdef INET6 - struct in6_addr a6; -#endif /* INET6 */ - - cp = buf + sizeof("sortlist") - 1; - while (nsort < MAXRESOLVSORT) { - while (*cp == ' ' || *cp == '\t') - cp++; - if (*cp == '\0' || *cp == '\n' || *cp == ';') - break; - net = cp; - while (*cp && !ISSORTMASK(*cp) && *cp != ';' && - isascii(*cp) && !isspace(*cp)) - cp++; - n = *cp; - *cp = 0; - if (inet_aton(net, &a)) { - _res.sort_list[nsort].addr = a; - if (ISSORTMASK(n)) { - *cp++ = n; - net = cp; - while (*cp && *cp != ';' && - isascii(*cp) && !isspace(*cp)) - cp++; - n = *cp; - *cp = 0; - if (inet_aton(net, &a)) { - _res.sort_list[nsort].mask = a.s_addr; - } else { - _res.sort_list[nsort].mask = - net_mask(_res.sort_list[nsort].addr); - } - } else { - _res.sort_list[nsort].mask = - net_mask(_res.sort_list[nsort].addr); - } -#ifdef INET6 - _res_ext.sort_list[nsort].af = AF_INET; - _res_ext.sort_list[nsort].addr.ina = - _res.sort_list[nsort].addr; - _res_ext.sort_list[nsort].mask.ina.s_addr = - _res.sort_list[nsort].mask; -#endif /* INET6 */ - nsort++; - } -#ifdef INET6 - else if (inet_pton(AF_INET6, net, &a6) == 1) { - int m, i; - u_char *u; - - _res_ext.sort_list[nsort].af = AF_INET6; - _res_ext.sort_list[nsort].addr.in6a = a6; - u = (u_char *)&_res_ext.sort_list[nsort].mask.in6a; - *cp++ = n; - net = cp; - while (*cp && *cp != ';' && - isascii(*cp) && !isspace(*cp)) - cp++; - m = n; - n = *cp; - *cp = 0; - switch (m) { - case '/': - m = atoi(net); - break; - case '&': - if (inet_pton(AF_INET6, net, u) == 1) { - m = -1; - break; - } - /*FALLTHROUGH*/ - default: - m = sizeof(struct in6_addr) * NBBY; - break; - } - if (m >= 0) { - for (i = 0; i < sizeof(struct in6_addr); i++) { - if (m <= 0) { - *u = 0; - } else { - m -= NBBY; - *u = (u_char)~0; - if (m < 0) - *u <<= -m; - } - u++; - } - } - nsort++; - } -#endif /* INET6 */ - *cp = n; - } - continue; - } -#endif - if (MATCH(buf, "options")) { - res_setoptions(buf + sizeof("options") - 1, "conf"); - continue; - } - } - if (nserv > 1) - _res.nscount = nserv; -#ifdef RESOLVSORT - _res.nsort = nsort; -#endif - (void) fclose(fp); - } - if (_res.defdname[0] == 0 && - gethostname(buf, sizeof(_res.defdname) - 1) == 0 && - (cp = strchr(buf, '.')) != NULL) - strcpy(_res.defdname, cp + 1); - - /* find components of local domain that might be searched */ - if (havesearch == 0) { - pp = _res.dnsrch; - *pp++ = _res.defdname; - *pp = NULL; - -#ifndef RFC1535 - dots = 0; - for (cp = _res.defdname; *cp; cp++) - dots += (*cp == '.'); - - cp = _res.defdname; - while (pp < _res.dnsrch + MAXDFLSRCH) { - if (dots < LOCALDOMAINPARTS) - break; - cp = strchr(cp, '.') + 1; /* we know there is one */ - *pp++ = cp; - dots--; - } - *pp = NULL; -#ifdef DEBUG - if (_res.options & RES_DEBUG) { - printf(";; res_init()... default dnsrch list:\n"); - for (pp = _res.dnsrch; *pp; pp++) - printf(";;\t%s\n", *pp); - printf(";;\t..END..\n"); - } -#endif -#endif /* !RFC1535 */ - } - - if (issetugid()) - _res.options |= RES_NOALIASES; - else if ((cp = getenv("RES_OPTIONS")) != NULL) - res_setoptions(cp, "env"); - _res.options |= RES_INIT; - return (0); -} - -static void -res_setoptions(options, source) - char *options, *source; -{ - char *cp = options; - int i; - -#ifdef DEBUG - if (_res.options & RES_DEBUG) - printf(";; res_setoptions(\"%s\", \"%s\")...\n", - options, source); -#endif - while (*cp) { - /* skip leading and inner runs of spaces */ - while (*cp == ' ' || *cp == '\t') - cp++; - /* search for and process individual options */ - if (!strncmp(cp, "ndots:", sizeof("ndots:") - 1)) { - i = atoi(cp + sizeof("ndots:") - 1); - if (i <= RES_MAXNDOTS) - _res.ndots = i; - else - _res.ndots = RES_MAXNDOTS; -#ifdef DEBUG - if (_res.options & RES_DEBUG) - printf(";;\tndots=%d\n", _res.ndots); -#endif - } else if (!strncmp(cp, "debug", sizeof("debug") - 1)) { -#ifdef DEBUG - if (!(_res.options & RES_DEBUG)) { - printf(";; res_setoptions(\"%s\", \"%s\")..\n", - options, source); - _res.options |= RES_DEBUG; - } - printf(";;\tdebug\n"); -#endif - } else if (!strncmp(cp, "inet6", sizeof("inet6") - 1)) { - _res.options |= RES_USE_INET6; - } else if (!strncmp(cp, "no_tld_query", sizeof("no_tld_query") - 1)) { - _res.options |= RES_NOTLDQUERY; - } else { - /* XXX - print a warning here? */ - } - /* skip to next run of spaces */ - while (*cp && *cp != ' ' && *cp != '\t') - cp++; - } -} - -#ifdef RESOLVSORT -/* XXX - should really support CIDR which means explicit masks always. */ -static u_int32_t -net_mask(in) /* XXX - should really use system's version of this */ - struct in_addr in; -{ - register u_int32_t i = ntohl(in.s_addr); - - if (IN_CLASSA(i)) - return (htonl(IN_CLASSA_NET)); - else if (IN_CLASSB(i)) - return (htonl(IN_CLASSB_NET)); - return (htonl(IN_CLASSC_NET)); -} -#endif - -u_int -res_randomid() -{ - struct timeval now; - - gettimeofday(&now, NULL); - return (0xffff & (now.tv_sec ^ now.tv_usec ^ getpid())); -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <resolv.h>. - */ -#undef res_init -__weak_reference(__res_init, res_init); diff --git a/lib/libc/net/res_mkquery.c b/lib/libc/net/res_mkquery.c deleted file mode 100644 index 5ac662b..0000000 --- a/lib/libc/net/res_mkquery.c +++ /dev/null @@ -1,206 +0,0 @@ -/* - * Copyright (c) 1985, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* - * Portions Copyright (c) 1993 by Digital Equipment Corporation. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies, and that - * the name of Digital Equipment Corporation not be used in advertising or - * publicity pertaining to distribution of the document or software without - * specific, written prior permission. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT - * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -/* - * Portions Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)res_mkquery.c 8.1 (Berkeley) 6/4/93"; -static char orig_rcsid[] = "From: Id: res_mkquery.c,v 8.9 1997/04/24 22:22:36 vixie Exp $"; -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/param.h> -#include <netinet/in.h> -#include <arpa/nameser.h> -#include <netdb.h> -#include <resolv.h> -#include <stdio.h> -#include <string.h> - -#include "res_config.h" - -/* - * Form all types of queries. - * Returns the size of the result or -1. - */ -int -res_mkquery(op, dname, class, type, data, datalen, newrr_in, buf, buflen) - int op; /* opcode of query */ - const char *dname; /* domain name */ - int class, type; /* class and type of query */ - const u_char *data; /* resource record data */ - int datalen; /* length of data */ - const u_char *newrr_in; /* new rr for modify or append */ - u_char *buf; /* buffer to put query */ - int buflen; /* size of buffer */ -{ - register HEADER *hp; - register u_char *cp; - register int n; - u_char *dnptrs[20], **dpp, **lastdnptr; - - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - h_errno = NETDB_INTERNAL; - return (-1); - } -#ifdef DEBUG - if (_res.options & RES_DEBUG) - printf(";; res_mkquery(%d, %s, %d, %d)\n", - op, dname, class, type); -#endif - /* - * Initialize header fields. - */ - if ((buf == NULL) || (buflen < HFIXEDSZ)) - return (-1); - memset(buf, 0, HFIXEDSZ); - hp = (HEADER *) buf; - hp->id = htons(++_res.id); - hp->opcode = op; - hp->rd = (_res.options & RES_RECURSE) != 0; - hp->rcode = NOERROR; - cp = buf + HFIXEDSZ; - buflen -= HFIXEDSZ; - dpp = dnptrs; - *dpp++ = buf; - *dpp++ = NULL; - lastdnptr = dnptrs + sizeof dnptrs / sizeof dnptrs[0]; - /* - * perform opcode specific processing - */ - switch (op) { - case QUERY: /*FALLTHROUGH*/ - case NS_NOTIFY_OP: - if ((buflen -= QFIXEDSZ) < 0) - return (-1); - if ((n = dn_comp(dname, cp, buflen, dnptrs, lastdnptr)) < 0) - return (-1); - cp += n; - buflen -= n; - __putshort(type, cp); - cp += INT16SZ; - __putshort(class, cp); - cp += INT16SZ; - hp->qdcount = htons(1); - if (op == QUERY || data == NULL) - break; - /* - * Make an additional record for completion domain. - */ - buflen -= RRFIXEDSZ; - n = dn_comp((char *)data, cp, buflen, dnptrs, lastdnptr); - if (n < 0) - return (-1); - cp += n; - buflen -= n; - __putshort(T_NULL, cp); - cp += INT16SZ; - __putshort(class, cp); - cp += INT16SZ; - __putlong(0, cp); - cp += INT32SZ; - __putshort(0, cp); - cp += INT16SZ; - hp->arcount = htons(1); - break; - - case IQUERY: - /* - * Initialize answer section - */ - if (buflen < 1 + RRFIXEDSZ + datalen) - return (-1); - *cp++ = '\0'; /* no domain name */ - __putshort(type, cp); - cp += INT16SZ; - __putshort(class, cp); - cp += INT16SZ; - __putlong(0, cp); - cp += INT32SZ; - __putshort(datalen, cp); - cp += INT16SZ; - if (datalen) { - memcpy(cp, data, datalen); - cp += datalen; - } - hp->ancount = htons(1); - break; - - default: - return (-1); - } - return (cp - buf); -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <resolv.h>. - */ -#undef res_mkquery -__weak_reference(__res_mkquery, res_mkquery); diff --git a/lib/libc/net/res_mkupdate.c b/lib/libc/net/res_mkupdate.c deleted file mode 100644 index eb31bac..0000000 --- a/lib/libc/net/res_mkupdate.c +++ /dev/null @@ -1,414 +0,0 @@ -/* - * Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -/* - * Based on the Dynamic DNS reference implementation by Viraj Bais - * <viraj_bais@ccm.fm.intel.com> - */ - -#if !defined(lint) && !defined(SABER) -static char rcsid[] = "$FreeBSD$"; -#endif /* not lint */ - -#include <sys/types.h> -#include <sys/param.h> - -#include <netinet/in.h> -#include <arpa/nameser.h> -#include <arpa/inet.h> - -#include <errno.h> -#include <limits.h> -#include <netdb.h> -#include <resolv.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <ctype.h> - -#include "res_config.h" - -static int getnum_str(u_char **, u_char *); -static int getword_str(char *, int, u_char **, u_char *); - -#define ShrinkBuffer(x) if ((buflen -= x) < 0) return (-2); - -/* - * Form update packets. - * Returns the size of the resulting packet if no error - * On error, - * returns -1 if error in reading a word/number in rdata - * portion for update packets - * -2 if length of buffer passed is insufficient - * -3 if zone section is not the first section in - * the linked list, or section order has a problem - * -4 on a number overflow - * -5 unknown operation or no records - */ -int -res_mkupdate(ns_updrec *rrecp_in, u_char *buf, int buflen) { - ns_updrec *rrecp_start = rrecp_in; - HEADER *hp; - u_char c, *cp, *cp1, *sp1, *sp2, *startp, *endp; - int n, i, j, found, soanum, multiline; - ns_updrec *rrecp, *tmprrecp, *recptr = NULL; - struct in_addr ina; - char buf2[MAXDNAME]; - int section, numrrs = 0, counts[ns_s_max]; - u_int16_t rtype, rclass; - u_int32_t n1, rttl; - u_char *dnptrs[20], **dpp, **lastdnptr; - - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - h_errno = NETDB_INTERNAL; - return (-1); - } - - /* - * Initialize header fields. - */ - if ((buf == NULL) || (buflen < HFIXEDSZ)) - return (-1); - memset(buf, 0, HFIXEDSZ); - hp = (HEADER *) buf; - hp->id = htons(++_res.id); - hp->opcode = ns_o_update; - hp->rcode = NOERROR; - sp1 = buf + 2*INT16SZ; /* save pointer to zocount */ - cp = buf + HFIXEDSZ; - buflen -= HFIXEDSZ; - dpp = dnptrs; - *dpp++ = buf; - *dpp++ = NULL; - lastdnptr = dnptrs + sizeof dnptrs / sizeof dnptrs[0]; - - if (rrecp_start == NULL) - return (-5); - else if (rrecp_start->r_section != S_ZONE) - return (-3); - - memset(counts, 0, sizeof counts); - for (rrecp = rrecp_start; rrecp; rrecp = rrecp->r_grpnext) { - numrrs++; - section = rrecp->r_section; - if (section < 0 || section >= ns_s_max) - return (-1); - counts[section]++; - for (i = section + 1; i < ns_s_max; i++) - if (counts[i]) - return (-3); - rtype = rrecp->r_type; - rclass = rrecp->r_class; - rttl = rrecp->r_ttl; - /* overload class and type */ - if (section == S_PREREQ) { - rttl = 0; - switch (rrecp->r_opcode) { - case YXDOMAIN: - rclass = C_ANY; - rtype = T_ANY; - rrecp->r_size = 0; - break; - case NXDOMAIN: - rclass = C_NONE; - rtype = T_ANY; - rrecp->r_size = 0; - break; - case NXRRSET: - rclass = C_NONE; - rrecp->r_size = 0; - break; - case YXRRSET: - if (rrecp->r_size == 0) - rclass = C_ANY; - break; - default: - fprintf(stderr, - "res_mkupdate: incorrect opcode: %d\n", - rrecp->r_opcode); - fflush(stderr); - return (-1); - } - } else if (section == S_UPDATE) { - switch (rrecp->r_opcode) { - case DELETE: - rclass = rrecp->r_size == 0 ? C_ANY : C_NONE; - break; - case ADD: - break; - default: - fprintf(stderr, - "res_mkupdate: incorrect opcode: %d\n", - rrecp->r_opcode); - fflush(stderr); - return (-1); - } - } - - /* - * XXX appending default domain to owner name is omitted, - * fqdn must be provided - */ - if ((n = dn_comp(rrecp->r_dname, cp, buflen, dnptrs, - lastdnptr)) < 0) - return (-1); - cp += n; - ShrinkBuffer(n + 2*INT16SZ); - PUTSHORT(rtype, cp); - PUTSHORT(rclass, cp); - if (section == S_ZONE) { - if (numrrs != 1 || rrecp->r_type != T_SOA) - return (-3); - continue; - } - ShrinkBuffer(INT32SZ + INT16SZ); - PUTLONG(rttl, cp); - sp2 = cp; /* save pointer to length byte */ - cp += INT16SZ; - if (rrecp->r_size == 0) { - if (section == S_UPDATE && rclass != C_ANY) - return (-1); - else { - PUTSHORT(0, sp2); - continue; - } - } - startp = rrecp->r_data; - endp = startp + rrecp->r_size - 1; - /* XXX this should be done centrally. */ - switch (rrecp->r_type) { - case T_A: - if (!getword_str(buf2, sizeof buf2, &startp, endp)) - return (-1); - if (!inet_aton(buf2, &ina)) - return (-1); - n1 = ntohl(ina.s_addr); - ShrinkBuffer(INT32SZ); - PUTLONG(n1, cp); - break; - case T_CNAME: - case T_MB: - case T_MG: - case T_MR: - case T_NS: - case T_PTR: - if (!getword_str(buf2, sizeof buf2, &startp, endp)) - return (-1); - n = dn_comp(buf2, cp, buflen, dnptrs, lastdnptr); - if (n < 0) - return (-1); - cp += n; - ShrinkBuffer(n); - break; - case T_MINFO: - case T_SOA: - case T_RP: - for (i = 0; i < 2; i++) { - if (!getword_str(buf2, sizeof buf2, &startp, - endp)) - return (-1); - n = dn_comp(buf2, cp, buflen, - dnptrs, lastdnptr); - if (n < 0) - return (-1); - cp += n; - ShrinkBuffer(n); - } - if (rrecp->r_type == T_SOA) { - ShrinkBuffer(5 * INT32SZ); - while (isspace(*startp) || !*startp) - startp++; - if (*startp == '(') { - multiline = 1; - startp++; - } else - multiline = 0; - /* serial, refresh, retry, expire, minimum */ - for (i = 0; i < 5; i++) { - soanum = getnum_str(&startp, endp); - if (soanum < 0) - return (-1); - PUTLONG(soanum, cp); - } - if (multiline) { - while (isspace(*startp) || !*startp) - startp++; - if (*startp != ')') - return (-1); - } - } - break; - case T_MX: - case T_AFSDB: - case T_RT: - n = getnum_str(&startp, endp); - if (n < 0) - return (-1); - PUTSHORT(n, cp); - ShrinkBuffer(INT16SZ); - if (!getword_str(buf2, sizeof buf2, &startp, endp)) - return (-1); - n = dn_comp(buf2, cp, buflen, dnptrs, lastdnptr); - if (n < 0) - return (-1); - cp += n; - ShrinkBuffer(n); - break; - case T_PX: - n = getnum_str(&startp, endp); - if (n < 0) - return (-1); - PUTSHORT(n, cp); - ShrinkBuffer(INT16SZ); - for (i = 0; i < 2; i++) { - if (!getword_str(buf2, sizeof buf2, &startp, - endp)) - return (-1); - n = dn_comp(buf2, cp, buflen, dnptrs, - lastdnptr); - if (n < 0) - return (-1); - cp += n; - ShrinkBuffer(n); - } - break; - case T_WKS: - case T_HINFO: - case T_TXT: - case T_X25: - case T_ISDN: - case T_NSAP: - case T_LOC: - /* XXX - more fine tuning needed here */ - ShrinkBuffer(rrecp->r_size); - memcpy(cp, rrecp->r_data, rrecp->r_size); - cp += rrecp->r_size; - break; - default: - return (-1); - } /*switch*/ - n = (u_int16_t)((cp - sp2) - INT16SZ); - PUTSHORT(n, sp2); - } /*for*/ - - hp->qdcount = htons(counts[0]); - hp->ancount = htons(counts[1]); - hp->nscount = htons(counts[2]); - hp->arcount = htons(counts[3]); - return (cp - buf); -} - -/* - * Get a whitespace delimited word from a string (not file) - * into buf. modify the start pointer to point after the - * word in the string. - */ -static int -getword_str(char *buf, int size, u_char **startpp, u_char *endp) { - char *cp; - int c; - - for (cp = buf; *startpp <= endp; ) { - c = **startpp; - if (isspace(c) || c == '\0') { - if (cp != buf) /* trailing whitespace */ - break; - else { /* leading whitespace */ - (*startpp)++; - continue; - } - } - (*startpp)++; - if (cp >= buf+size-1) - break; - *cp++ = (u_char)c; - } - *cp = '\0'; - return (cp != buf); -} - -/* - * Get a whitespace delimited number from a string (not file) into buf - * update the start pointer to point after the number in the string. - */ -static int -getnum_str(u_char **startpp, u_char *endp) { - int c, n; - int seendigit = 0; - int seendecimal = 0; - int m = 0; - - for (n = 0; *startpp <= endp; ) { - c = **startpp; - if (isspace(c) || c == '\0') { - if (seendigit) /* trailing whitespace */ - break; - else { /* leading whitespace */ - (*startpp)++; - continue; - } - } - if (c == ';') { - while ((*startpp <= endp) && - ((c = **startpp) != '\n')) - (*startpp)++; - if (seendigit) - break; - continue; - } - if (!isdigit(c)) { - if (c == ')' && seendigit) { - (*startpp)--; - break; - } - return (-1); - } - (*startpp)++; - n = n * 10 + (c - '0'); - seendigit = 1; - } - return (n + m); -} - -/* - * Allocate a resource record buffer & save rr info. - */ -ns_updrec * -res_mkupdrec(int section, const char *dname, - u_int class, u_int type, u_long ttl) { - ns_updrec *rrecp = (ns_updrec *)calloc(1, sizeof(ns_updrec)); - - if (!rrecp || !(rrecp->r_dname = strdup(dname))) - return (NULL); - rrecp->r_class = class; - rrecp->r_type = type; - rrecp->r_ttl = ttl; - rrecp->r_section = section; - return (rrecp); -} - -/* - * Free a resource record buffer created by res_mkupdrec. - */ -void -res_freeupdrec(ns_updrec *rrecp) { - /* Note: freeing r_dp is the caller's responsibility. */ - if (rrecp->r_dname != NULL) - free(rrecp->r_dname); - free(rrecp); -} diff --git a/lib/libc/net/res_query.c b/lib/libc/net/res_query.c deleted file mode 100644 index 0ee2ad2..0000000 --- a/lib/libc/net/res_query.c +++ /dev/null @@ -1,421 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* - * Portions Copyright (c) 1993 by Digital Equipment Corporation. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies, and that - * the name of Digital Equipment Corporation not be used in advertising or - * publicity pertaining to distribution of the document or software without - * specific, written prior permission. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT - * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -/* - * Portions Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)res_query.c 8.1 (Berkeley) 6/4/93"; -static char orig_rcsid = "From: Id: res_query.c,v 8.14 1997/06/09 17:47:05 halley Exp $"; -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/param.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> -#include <ctype.h> -#include <errno.h> -#include <netdb.h> -#include <resolv.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "res_config.h" - -#if PACKETSZ > 1024 -#define MAXPACKET PACKETSZ -#else -#define MAXPACKET 1024 -#endif - -/* - * Formulate a normal query, send, and await answer. - * Returned answer is placed in supplied buffer "answer". - * Perform preliminary check of answer, returning success only - * if no error is indicated and the answer count is nonzero. - * Return the size of the response on success, -1 on error. - * Error number is left in h_errno. - * - * Caller must parse answer and determine whether it answers the question. - */ -int -res_query(name, class, type, answer, anslen) - const char *name; /* domain name */ - int class, type; /* class and type of query */ - u_char *answer; /* buffer to put answer */ - int anslen; /* size of answer buffer */ -{ - u_char buf[MAXPACKET]; - HEADER *hp = (HEADER *) answer; - int n; - - hp->rcode = NOERROR; /* default */ - - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - h_errno = NETDB_INTERNAL; - return (-1); - } -#ifdef DEBUG - if (_res.options & RES_DEBUG) - printf(";; res_query(%s, %d, %d)\n", name, class, type); -#endif - - n = res_mkquery(QUERY, name, class, type, NULL, 0, NULL, - buf, sizeof(buf)); - if (n <= 0) { -#ifdef DEBUG - if (_res.options & RES_DEBUG) - printf(";; res_query: mkquery failed\n"); -#endif - h_errno = NO_RECOVERY; - return (n); - } - n = res_send(buf, n, answer, anslen); - if (n < 0) { -#ifdef DEBUG - if (_res.options & RES_DEBUG) - printf(";; res_query: send error\n"); -#endif - h_errno = TRY_AGAIN; - return (n); - } - - if (hp->rcode != NOERROR || ntohs(hp->ancount) == 0) { -#ifdef DEBUG - if (_res.options & RES_DEBUG) - printf(";; rcode = %d, ancount=%d\n", hp->rcode, - ntohs(hp->ancount)); -#endif - switch (hp->rcode) { - case NXDOMAIN: - h_errno = HOST_NOT_FOUND; - break; - case SERVFAIL: - h_errno = TRY_AGAIN; - break; - case NOERROR: - h_errno = NO_DATA; - break; - case FORMERR: - case NOTIMP: - case REFUSED: - default: - h_errno = NO_RECOVERY; - break; - } - return (-1); - } - return (n); -} - -/* - * Formulate a normal query, send, and retrieve answer in supplied buffer. - * Return the size of the response on success, -1 on error. - * If enabled, implement search rules until answer or unrecoverable failure - * is detected. Error code, if any, is left in h_errno. - */ -int -res_search(name, class, type, answer, anslen) - const char *name; /* domain name */ - int class, type; /* class and type of query */ - u_char *answer; /* buffer to put answer */ - int anslen; /* size of answer */ -{ - const char *cp, * const *domain; - HEADER *hp = (HEADER *) answer; - u_int dots; - int trailing_dot, ret, saved_herrno; - int got_nodata = 0, got_servfail = 0, tried_as_is = 0; - - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - h_errno = NETDB_INTERNAL; - return (-1); - } - errno = 0; - h_errno = HOST_NOT_FOUND; /* default, if we never query */ - dots = 0; - for (cp = name; *cp; cp++) - dots += (*cp == '.'); - trailing_dot = 0; - if (cp > name && *--cp == '.') - trailing_dot++; - - /* If there aren't any dots, it could be a user-level alias */ - if (!dots && (cp = hostalias(name)) != NULL) - return (res_query(cp, class, type, answer, anslen)); - - /* - * If there are dots in the name already, let's just give it a try - * 'as is'. The threshold can be set with the "ndots" option. - */ - saved_herrno = -1; - if (dots >= _res.ndots) { - ret = res_querydomain(name, NULL, class, type, answer, anslen); - if (ret > 0) - return (ret); - saved_herrno = h_errno; - tried_as_is++; - } - - /* - * We do at least one level of search if - * - there is no dot and RES_DEFNAME is set, or - * - there is at least one dot, there is no trailing dot, - * and RES_DNSRCH is set. - */ - if ((!dots && (_res.options & RES_DEFNAMES)) || - (dots && !trailing_dot && (_res.options & RES_DNSRCH))) { - int done = 0; - - for (domain = (const char * const *)_res.dnsrch; - *domain && !done; - domain++) { - - ret = res_querydomain(name, *domain, class, type, - answer, anslen); - if (ret > 0) - return (ret); - - /* - * If no server present, give up. - * If name isn't found in this domain, - * keep trying higher domains in the search list - * (if that's enabled). - * On a NO_DATA error, keep trying, otherwise - * a wildcard entry of another type could keep us - * from finding this entry higher in the domain. - * If we get some other error (negative answer or - * server failure), then stop searching up, - * but try the input name below in case it's - * fully-qualified. - */ - if (errno == ECONNREFUSED) { - h_errno = TRY_AGAIN; - return (-1); - } - - switch (h_errno) { - case NO_DATA: - got_nodata++; - /* FALLTHROUGH */ - case HOST_NOT_FOUND: - /* keep trying */ - break; - case TRY_AGAIN: - if (hp->rcode == SERVFAIL) { - /* try next search element, if any */ - got_servfail++; - break; - } - /* FALLTHROUGH */ - default: - /* anything else implies that we're done */ - done++; - } - - /* if we got here for some reason other than DNSRCH, - * we only wanted one iteration of the loop, so stop. - */ - if (!(_res.options & RES_DNSRCH)) - done++; - } - } - - /* - * If we have not already tried the name "as is", do that now. - * note that we do this regardless of how many dots were in the - * name or whether it ends with a dot unless NOTLDQUERY is set. - */ - if (!tried_as_is && (dots || !(_res.options & RES_NOTLDQUERY))) { - ret = res_querydomain(name, NULL, class, type, answer, anslen); - if (ret > 0) - return (ret); - } - - /* if we got here, we didn't satisfy the search. - * if we did an initial full query, return that query's h_errno - * (note that we wouldn't be here if that query had succeeded). - * else if we ever got a nodata, send that back as the reason. - * else send back meaningless h_errno, that being the one from - * the last DNSRCH we did. - */ - if (saved_herrno != -1) - h_errno = saved_herrno; - else if (got_nodata) - h_errno = NO_DATA; - else if (got_servfail) - h_errno = TRY_AGAIN; - return (-1); -} - -/* - * Perform a call on res_query on the concatenation of name and domain, - * removing a trailing dot from name if domain is NULL. - */ -int -res_querydomain(name, domain, class, type, answer, anslen) - const char *name, *domain; - int class, type; /* class and type of query */ - u_char *answer; /* buffer to put answer */ - int anslen; /* size of answer */ -{ - char nbuf[MAXDNAME]; - const char *longname = nbuf; - int n, d; - - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - h_errno = NETDB_INTERNAL; - return (-1); - } -#ifdef DEBUG - if (_res.options & RES_DEBUG) - printf(";; res_querydomain(%s, %s, %d, %d)\n", - name, domain?domain:"<Nil>", class, type); -#endif - if (domain == NULL) { - /* - * Check for trailing '.'; - * copy without '.' if present. - */ - n = strlen(name); - if (n >= MAXDNAME) { - h_errno = NO_RECOVERY; - return (-1); - } - n--; - if (n >= 0 && name[n] == '.') { - strncpy(nbuf, name, n); - nbuf[n] = '\0'; - } else - longname = name; - } else { - n = strlen(name); - d = strlen(domain); - if (n + d + 1 >= MAXDNAME) { - h_errno = NO_RECOVERY; - return (-1); - } - sprintf(nbuf, "%s.%s", name, domain); - } - return (res_query(longname, class, type, answer, anslen)); -} - -const char * -hostalias(name) - const char *name; -{ - register char *cp1, *cp2; - FILE *fp; - char *file; - char buf[BUFSIZ]; - static char abuf[MAXDNAME]; - - if (_res.options & RES_NOALIASES) - return (NULL); - if (issetugid()) - return (NULL); - file = getenv("HOSTALIASES"); - if (file == NULL || (fp = fopen(file, "r")) == NULL) - return (NULL); - setbuf(fp, NULL); - buf[sizeof(buf) - 1] = '\0'; - while (fgets(buf, sizeof(buf), fp)) { - for (cp1 = buf; *cp1 && !isspace((unsigned char)*cp1); ++cp1) - ; - if (!*cp1) - break; - *cp1 = '\0'; - if (!strcasecmp(buf, name)) { - while (isspace((unsigned char)*++cp1)) - ; - if (!*cp1) - break; - for (cp2 = cp1 + 1; *cp2 && !isspace((unsigned char)*cp2); ++cp2) - ; - abuf[sizeof(abuf) - 1] = *cp2 = '\0'; - strncpy(abuf, cp1, sizeof(abuf) - 1); - fclose(fp); - return (abuf); - } - } - fclose(fp); - return (NULL); -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <resolv.h>. - */ -#undef res_query -__weak_reference(__res_query, res_query); -#undef res_search -__weak_reference(__res_search, res_search); -#undef res_querydomain -__weak_reference(__res_querydomain, res_querydomain); diff --git a/lib/libc/net/res_send.c b/lib/libc/net/res_send.c deleted file mode 100644 index 895db81..0000000 --- a/lib/libc/net/res_send.c +++ /dev/null @@ -1,927 +0,0 @@ -/* - * Copyright (c) 1985, 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* - * Portions Copyright (c) 1993 by Digital Equipment Corporation. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies, and that - * the name of Digital Equipment Corporation not be used in advertising or - * publicity pertaining to distribution of the document or software without - * specific, written prior permission. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT - * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -/* - * Portions Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)res_send.c 8.1 (Berkeley) 6/4/93"; -static char orig_rcsid[] = "From: Id: res_send.c,v 8.20 1998/04/06 23:27:51 halley Exp $"; -static char rcsid[] = "$FreeBSD$"; -#endif /* LIBC_SCCS and not lint */ - -/* - * Send query to name server and wait for reply. - */ - -#include <sys/types.h> -#include <sys/param.h> -#include <sys/time.h> -#include <sys/socket.h> -#include <sys/uio.h> - -#include <netinet/in.h> -#include <arpa/nameser.h> -#include <arpa/inet.h> - -#include <errno.h> -#include <netdb.h> -#include <resolv.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <poll.h> - -#include "res_config.h" - -#ifdef NOPOLL /* libc_r doesn't wrap poll yet() */ -static int use_poll = 0; -#else -static int use_poll = 1; /* adapt to poll() syscall availability */ - /* 0 = not present, 1 = try it, 2 = exists */ -#endif - -static int s = -1; /* socket used for communications */ -static int connected = 0; /* is the socket connected */ -static int vc = 0; /* is the socket a virtual circuit? */ -static res_send_qhook Qhook = NULL; -static res_send_rhook Rhook = NULL; - - -#define CAN_RECONNECT 1 - -#ifndef DEBUG -# define Dprint(cond, args) /*empty*/ -# define DprintQ(cond, args, query, size) /*empty*/ -# define Aerror(file, string, error, address) /*empty*/ -# define Perror(file, string, error) /*empty*/ -#else -# define Dprint(cond, args) if (cond) {fprintf args;} else {} -# define DprintQ(cond, args, query, size) if (cond) {\ - fprintf args;\ - __fp_nquery(query, size, stdout);\ - } else {} - static void - Aerror(file, string, error, address) - FILE *file; - char *string; - int error; - struct sockaddr_in address; - { - int save = errno; - - if (_res.options & RES_DEBUG) { - fprintf(file, "res_send: %s ([%s].%u): %s\n", - string, - inet_ntoa(address.sin_addr), - ntohs(address.sin_port), - strerror(error)); - } - errno = save; - } - static void - Perror(file, string, error) - FILE *file; - char *string; - int error; - { - int save = errno; - - if (_res.options & RES_DEBUG) { - fprintf(file, "res_send: %s: %s\n", - string, strerror(error)); - } - errno = save; - } -#endif - -void -res_send_setqhook(hook) - res_send_qhook hook; -{ - - Qhook = hook; -} - -void -res_send_setrhook(hook) - res_send_rhook hook; -{ - - Rhook = hook; -} - -/* int - * res_isourserver(ina) - * looks up "ina" in _res.ns_addr_list[] - * returns: - * 0 : not found - * >0 : found - * author: - * paul vixie, 29may94 - */ -int -res_isourserver(inp) - const struct sockaddr_in *inp; -{ - struct sockaddr_in ina; - int ns, ret; - - ina = *inp; - ret = 0; - for (ns = 0; ns < _res.nscount; ns++) { - const struct sockaddr_in *srv = &_res.nsaddr_list[ns]; - - if (srv->sin_family == ina.sin_family && - srv->sin_port == ina.sin_port && - (srv->sin_addr.s_addr == INADDR_ANY || - srv->sin_addr.s_addr == ina.sin_addr.s_addr)) { - ret++; - break; - } - } - return (ret); -} - -/* int - * res_nameinquery(name, type, class, buf, eom) - * look for (name,type,class) in the query section of packet (buf,eom) - * requires: - * buf + HFIXEDSZ <= eom - * returns: - * -1 : format error - * 0 : not found - * >0 : found - * author: - * paul vixie, 29may94 - */ -int -res_nameinquery(name, type, class, buf, eom) - const char *name; - int type, class; - const u_char *buf, *eom; -{ - const u_char *cp = buf + HFIXEDSZ; - int qdcount = ntohs(((HEADER*)buf)->qdcount); - - while (qdcount-- > 0) { - char tname[MAXDNAME+1]; - int n, ttype, tclass; - - n = dn_expand(buf, eom, cp, tname, sizeof tname); - if (n < 0) - return (-1); - cp += n; - if (cp + 2 * INT16SZ > eom) - return (-1); - ttype = ns_get16(cp); cp += INT16SZ; - tclass = ns_get16(cp); cp += INT16SZ; - if (ttype == type && - tclass == class && - strcasecmp(tname, name) == 0) - return (1); - } - return (0); -} - -/* int - * res_queriesmatch(buf1, eom1, buf2, eom2) - * is there a 1:1 mapping of (name,type,class) - * in (buf1,eom1) and (buf2,eom2)? - * returns: - * -1 : format error - * 0 : not a 1:1 mapping - * >0 : is a 1:1 mapping - * author: - * paul vixie, 29may94 - */ -int -res_queriesmatch(buf1, eom1, buf2, eom2) - const u_char *buf1, *eom1; - const u_char *buf2, *eom2; -{ - const u_char *cp = buf1 + HFIXEDSZ; - int qdcount = ntohs(((HEADER*)buf1)->qdcount); - - if (buf1 + HFIXEDSZ > eom1 || buf2 + HFIXEDSZ > eom2) - return (-1); - - /* - * Only header section present in replies to - * dynamic update packets. - */ - if ( (((HEADER *)buf1)->opcode == ns_o_update) && - (((HEADER *)buf2)->opcode == ns_o_update) ) - return (1); - - if (qdcount != ntohs(((HEADER*)buf2)->qdcount)) - return (0); - while (qdcount-- > 0) { - char tname[MAXDNAME+1]; - int n, ttype, tclass; - - n = dn_expand(buf1, eom1, cp, tname, sizeof tname); - if (n < 0) - return (-1); - cp += n; - if (cp + 2 * INT16SZ > eom1) - return (-1); - ttype = ns_get16(cp); cp += INT16SZ; - tclass = ns_get16(cp); cp += INT16SZ; - if (!res_nameinquery(tname, ttype, tclass, buf2, eom2)) - return (0); - } - return (1); -} - -int -res_send(buf, buflen, ans, anssiz) - const u_char *buf; - int buflen; - u_char *ans; - int anssiz; -{ - HEADER *hp = (HEADER *) buf; - HEADER *anhp = (HEADER *) ans; - int gotsomewhere, connreset, terrno, try, v_circuit, resplen, ns, n; - u_int badns; /* XXX NSMAX can't exceed #/bits in this variable */ - - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - /* errno should have been set by res_init() in this case. */ - return (-1); - } - if (anssiz < HFIXEDSZ) { - errno = EINVAL; - return (-1); - } - DprintQ((_res.options & RES_DEBUG) || (_res.pfcode & RES_PRF_QUERY), - (stdout, ";; res_send()\n"), buf, buflen); - v_circuit = (_res.options & RES_USEVC) || buflen > PACKETSZ; - gotsomewhere = 0; - connreset = 0; - terrno = ETIMEDOUT; - badns = 0; - - /* - * Send request, RETRY times, or until successful - */ - for (try = 0; try < _res.retry; try++) { - for (ns = 0; ns < _res.nscount; ns++) { - struct sockaddr_in *nsap = &_res.nsaddr_list[ns]; - same_ns: - if (badns & (1 << ns)) { - res_close(); - goto next_ns; - } - - if (Qhook) { - int done = 0, loops = 0; - - do { - res_sendhookact act; - - act = (*Qhook)(&nsap, &buf, &buflen, - ans, anssiz, &resplen); - switch (act) { - case res_goahead: - done = 1; - break; - case res_nextns: - res_close(); - goto next_ns; - case res_done: - return (resplen); - case res_modified: - /* give the hook another try */ - if (++loops < 42) /*doug adams*/ - break; - /*FALLTHROUGH*/ - case res_error: - /*FALLTHROUGH*/ - default: - return (-1); - } - } while (!done); - } - - Dprint(_res.options & RES_DEBUG, - (stdout, ";; Querying server (# %d) address = %s\n", - ns + 1, inet_ntoa(nsap->sin_addr))); - - if (v_circuit) { - int truncated; - struct iovec iov[2]; - u_short len; - u_char *cp; - - /* - * Use virtual circuit; - * at most one attempt per server. - */ - try = _res.retry; - truncated = 0; - if (s < 0 || !vc || hp->opcode == ns_o_update) { - if (s >= 0) - res_close(); - - s = socket(PF_INET, SOCK_STREAM, 0); - if (s < 0) { - terrno = errno; - Perror(stderr, "socket(vc)", errno); - return (-1); - } - errno = 0; - if (connect(s, (struct sockaddr *)nsap, - sizeof *nsap) < 0) { - terrno = errno; - Aerror(stderr, "connect/vc", - errno, *nsap); - badns |= (1 << ns); - res_close(); - goto next_ns; - } - vc = 1; - } - /* - * Send length & message - */ - putshort((u_short)buflen, (u_char*)&len); - iov[0].iov_base = (caddr_t)&len; - iov[0].iov_len = INT16SZ; - iov[1].iov_base = (caddr_t)buf; - iov[1].iov_len = buflen; - if (writev(s, iov, 2) != (INT16SZ + buflen)) { - terrno = errno; - Perror(stderr, "write failed", errno); - badns |= (1 << ns); - res_close(); - goto next_ns; - } - /* - * Receive length & response - */ -read_len: - cp = ans; - len = INT16SZ; - while ((n = _read(s, (char *)cp, (int)len)) > 0) { - cp += n; - if ((len -= n) <= 0) - break; - } - if (n <= 0) { - terrno = errno; - Perror(stderr, "read failed", errno); - res_close(); - /* - * A long running process might get its TCP - * connection reset if the remote server was - * restarted. Requery the server instead of - * trying a new one. When there is only one - * server, this means that a query might work - * instead of failing. We only allow one reset - * per query to prevent looping. - */ - if (terrno == ECONNRESET && !connreset) { - connreset = 1; - res_close(); - goto same_ns; - } - res_close(); - goto next_ns; - } - resplen = ns_get16(ans); - if (resplen > anssiz) { - Dprint(_res.options & RES_DEBUG, - (stdout, ";; response truncated\n") - ); - truncated = 1; - len = anssiz; - } else - len = resplen; - if (len < HFIXEDSZ) { - /* - * Undersized message. - */ - Dprint(_res.options & RES_DEBUG, - (stdout, ";; undersized: %d\n", len)); - terrno = EMSGSIZE; - badns |= (1 << ns); - res_close(); - goto next_ns; - } - cp = ans; - while (len != 0 && - (n = _read(s, (char *)cp, (int)len)) > 0) { - cp += n; - len -= n; - } - if (n <= 0) { - terrno = errno; - Perror(stderr, "read(vc)", errno); - res_close(); - goto next_ns; - } - if (truncated) { - /* - * Flush rest of answer - * so connection stays in synch. - */ - anhp->tc = 1; - len = resplen - anssiz; - while (len != 0) { - char junk[PACKETSZ]; - - n = (len > sizeof(junk) - ? sizeof(junk) - : len); - if ((n = _read(s, junk, n)) > 0) - len -= n; - else - break; - } - } - /* - * The calling applicating has bailed out of - * a previous call and failed to arrange to have - * the circuit closed or the server has got - * itself confused. Anyway drop the packet and - * wait for the correct one. - */ - if (hp->id != anhp->id) { - DprintQ((_res.options & RES_DEBUG) || - (_res.pfcode & RES_PRF_REPLY), - (stdout, ";; old answer (unexpected):\n"), - ans, (resplen>anssiz)?anssiz:resplen); - goto read_len; - } - } else { - /* - * Use datagrams. - */ -#ifndef NOPOLL - struct pollfd pfd; - int msec; -#endif - struct timeval timeout; - fd_set dsmask, *dsmaskp; - int dsmasklen; - struct sockaddr_in from; - int fromlen; - - if ((s < 0) || vc) { - if (vc) - res_close(); - s = socket(PF_INET, SOCK_DGRAM, 0); - if (s < 0) { -#ifndef CAN_RECONNECT - bad_dg_sock: -#endif - terrno = errno; - Perror(stderr, "socket(dg)", errno); - return (-1); - } - connected = 0; - } -#ifndef CANNOT_CONNECT_DGRAM - /* - * On a 4.3BSD+ machine (client and server, - * actually), sending to a nameserver datagram - * port with no nameserver will cause an - * ICMP port unreachable message to be returned. - * If our datagram socket is "connected" to the - * server, we get an ECONNREFUSED error on the next - * socket operation, and select returns if the - * error message is received. We can thus detect - * the absence of a nameserver without timing out. - * If we have sent queries to at least two servers, - * however, we don't want to remain connected, - * as we wish to receive answers from the first - * server to respond. - */ - if (_res.nscount == 1 || (try == 0 && ns == 0)) { - /* - * Connect only if we are sure we won't - * receive a response from another server. - */ - if (!connected) { - if (connect(s, (struct sockaddr *)nsap, - sizeof *nsap - ) < 0) { - Aerror(stderr, - "connect(dg)", - errno, *nsap); - badns |= (1 << ns); - res_close(); - goto next_ns; - } - connected = 1; - } - if (send(s, (char*)buf, buflen, 0) != buflen) { - Perror(stderr, "send", errno); - badns |= (1 << ns); - res_close(); - goto next_ns; - } - } else { - /* - * Disconnect if we want to listen - * for responses from more than one server. - */ - if (connected) { -#ifdef CAN_RECONNECT - struct sockaddr_in no_addr; - - no_addr.sin_family = AF_INET; - no_addr.sin_addr.s_addr = INADDR_ANY; - no_addr.sin_port = 0; - (void) connect(s, - (struct sockaddr *) - &no_addr, - sizeof no_addr); -#else - int s1 = socket(PF_INET, SOCK_DGRAM,0); - if (s1 < 0) - goto bad_dg_sock; - (void)dup2(s1, s); - (void)_close(s1); - Dprint(_res.options & RES_DEBUG, - (stdout, ";; new DG socket\n")) -#endif /* CAN_RECONNECT */ - connected = 0; - errno = 0; - } -#endif /* !CANNOT_CONNECT_DGRAM */ - if (sendto(s, (char*)buf, buflen, 0, - (struct sockaddr *)nsap, - sizeof *nsap) - != buflen) { - Aerror(stderr, "sendto", errno, *nsap); - badns |= (1 << ns); - res_close(); - goto next_ns; - } -#ifndef CANNOT_CONNECT_DGRAM - } -#endif /* !CANNOT_CONNECT_DGRAM */ - - /* - * Wait for reply - */ -#ifndef NOPOLL - othersyscall: - if (use_poll) { - struct timeval itv; - - msec = (_res.retrans << try) * 1000; - if (try > 0) - msec /= _res.nscount; - if (msec <= 0) - msec = 1000; - gettimeofday(&timeout, NULL); - itv.tv_sec = msec / 1000; - itv.tv_usec = (msec % 1000) * 1000; - timeradd(&timeout, &itv, &timeout); - } else { -#endif - timeout.tv_sec = (_res.retrans << try); - if (try > 0) - timeout.tv_sec /= _res.nscount; - if ((long) timeout.tv_sec <= 0) - timeout.tv_sec = 1; - timeout.tv_usec = 0; -#ifndef NOPOLL - } -#endif - wait: - if (s < 0) { - Perror(stderr, "s out-of-bounds", EMFILE); - res_close(); - goto next_ns; - } -#ifndef NOPOLL - if (use_poll) { - struct sigaction sa, osa; - int sigsys_installed = 0; - - pfd.fd = s; - pfd.events = POLLIN; - if (use_poll == 1) { - sigemptyset(&sa.sa_mask); - sa.sa_flags = 0; - sa.sa_handler = SIG_IGN; - if (sigaction(SIGSYS, &sa, &osa) >= 0) - sigsys_installed = 1; - } - n = poll(&pfd, 1, msec); - if (sigsys_installed == 1) { - int oerrno = errno; - sigaction(SIGSYS, &osa, NULL); - errno = oerrno; - } - /* XXX why does nosys() return EINVAL? */ - if (n < 0 && (errno == ENOSYS || - errno == EINVAL)) { - use_poll = 0; - goto othersyscall; - } else if (use_poll == 1) - use_poll = 2; - if (n < 0) { - if (errno == EINTR) { - struct timeval ctv; - - gettimeofday(&ctv, NULL); - if (timercmp(&ctv, &timeout, <)) { - timersub(&timeout, - &ctv, &ctv); - msec = ctv.tv_sec * 1000; - msec += ctv.tv_usec / 1000; - goto wait; - } - } else { - Perror(stderr, "poll", errno); - res_close(); - goto next_ns; - } - } - } else { -#endif - dsmasklen = howmany(s + 1, NFDBITS) * - sizeof(fd_mask); - if (dsmasklen > sizeof(fd_set)) { - dsmaskp = (fd_set *)malloc(dsmasklen); - if (dsmaskp == NULL) { - res_close(); - goto next_ns; - } - } else - dsmaskp = &dsmask; - /* only zero what we need */ - bzero((char *)dsmaskp, dsmasklen); - FD_SET(s, dsmaskp); - n = select(s + 1, dsmaskp, (fd_set *)NULL, - (fd_set *)NULL, &timeout); - if (dsmaskp != &dsmask) - free(dsmaskp); - if (n < 0) { - if (errno == EINTR) - goto wait; - Perror(stderr, "select", errno); - res_close(); - goto next_ns; - } -#ifndef NOPOLL - } -#endif - - if (n == 0) { - /* - * timeout - */ - Dprint(_res.options & RES_DEBUG, - (stdout, ";; timeout\n")); - gotsomewhere = 1; - res_close(); - goto next_ns; - } - errno = 0; - fromlen = sizeof(struct sockaddr_in); - resplen = recvfrom(s, (char*)ans, anssiz, 0, - (struct sockaddr *)&from, &fromlen); - if (resplen <= 0) { - Perror(stderr, "recvfrom", errno); - res_close(); - goto next_ns; - } - gotsomewhere = 1; - if (resplen < HFIXEDSZ) { - /* - * Undersized message. - */ - Dprint(_res.options & RES_DEBUG, - (stdout, ";; undersized: %d\n", - resplen)); - terrno = EMSGSIZE; - badns |= (1 << ns); - res_close(); - goto next_ns; - } - if (hp->id != anhp->id) { - /* - * response from old query, ignore it. - * XXX - potential security hazard could - * be detected here. - */ - DprintQ((_res.options & RES_DEBUG) || - (_res.pfcode & RES_PRF_REPLY), - (stdout, ";; old answer:\n"), - ans, (resplen>anssiz)?anssiz:resplen); - goto wait; - } -#ifdef CHECK_SRVR_ADDR - if (!(_res.options & RES_INSECURE1) && - !res_isourserver(&from)) { - /* - * response from wrong server? ignore it. - * XXX - potential security hazard could - * be detected here. - */ - DprintQ((_res.options & RES_DEBUG) || - (_res.pfcode & RES_PRF_REPLY), - (stdout, ";; not our server:\n"), - ans, (resplen>anssiz)?anssiz:resplen); - goto wait; - } -#endif - if (!(_res.options & RES_INSECURE2) && - !res_queriesmatch(buf, buf + buflen, - ans, ans + anssiz)) { - /* - * response contains wrong query? ignore it. - * XXX - potential security hazard could - * be detected here. - */ - DprintQ((_res.options & RES_DEBUG) || - (_res.pfcode & RES_PRF_REPLY), - (stdout, ";; wrong query name:\n"), - ans, (resplen>anssiz)?anssiz:resplen); - goto wait; - } - if (anhp->rcode == SERVFAIL || - anhp->rcode == NOTIMP || - anhp->rcode == REFUSED) { - DprintQ(_res.options & RES_DEBUG, - (stdout, "server rejected query:\n"), - ans, (resplen>anssiz)?anssiz:resplen); - badns |= (1 << ns); - res_close(); - /* don't retry if called from dig */ - if (!_res.pfcode) - goto next_ns; - } - if (!(_res.options & RES_IGNTC) && anhp->tc) { - /* - * get rest of answer; - * use TCP with same server. - */ - Dprint(_res.options & RES_DEBUG, - (stdout, ";; truncated answer\n")); - v_circuit = 1; - res_close(); - goto same_ns; - } - } /*if vc/dg*/ - Dprint((_res.options & RES_DEBUG) || - ((_res.pfcode & RES_PRF_REPLY) && - (_res.pfcode & RES_PRF_HEAD1)), - (stdout, ";; got answer:\n")); - DprintQ((_res.options & RES_DEBUG) || - (_res.pfcode & RES_PRF_REPLY), - (stdout, ""), - ans, (resplen>anssiz)?anssiz:resplen); - /* - * If using virtual circuits, we assume that the first server - * is preferred over the rest (i.e. it is on the local - * machine) and only keep that one open. - * If we have temporarily opened a virtual circuit, - * or if we haven't been asked to keep a socket open, - * close the socket. - */ - if ((v_circuit && (!(_res.options & RES_USEVC) || ns != 0)) || - !(_res.options & RES_STAYOPEN)) { - res_close(); - } - if (Rhook) { - int done = 0, loops = 0; - - do { - res_sendhookact act; - - act = (*Rhook)(nsap, buf, buflen, - ans, anssiz, &resplen); - switch (act) { - case res_goahead: - case res_done: - done = 1; - break; - case res_nextns: - res_close(); - goto next_ns; - case res_modified: - /* give the hook another try */ - if (++loops < 42) /*doug adams*/ - break; - /*FALLTHROUGH*/ - case res_error: - /*FALLTHROUGH*/ - default: - return (-1); - } - } while (!done); - - } - return (resplen); - next_ns: ; - } /*foreach ns*/ - } /*foreach retry*/ - res_close(); - if (!v_circuit) { - if (!gotsomewhere) - errno = ECONNREFUSED; /* no nameservers found */ - else - errno = ETIMEDOUT; /* no answer obtained */ - } else - errno = terrno; - return (-1); -} - -/* - * This routine is for closing the socket if a virtual circuit is used and - * the program wants to close it. This provides support for endhostent() - * which expects to close the socket. - * - * This routine is not expected to be user visible. - */ -void -res_close() -{ - if (s >= 0) { - (void)_close(s); - s = -1; - connected = 0; - vc = 0; - } -} - -/* - * Weak aliases for applications that use certain private entry points, - * and fail to include <resolv.h>. - */ -#undef res_close -__weak_reference(__res_close, _res_close); -#undef res_send -__weak_reference(__res_send, res_send); diff --git a/lib/libc/net/res_update.c b/lib/libc/net/res_update.c deleted file mode 100644 index a877d4a..0000000 --- a/lib/libc/net/res_update.c +++ /dev/null @@ -1,516 +0,0 @@ -#if !defined(lint) && !defined(SABER) -static char rcsid[] = "$FreeBSD$"; -#endif /* not lint */ - -/* - * Copyright (c) 1996 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS - * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE - * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -/* - * Based on the Dynamic DNS reference implementation by Viraj Bais - * <viraj_bais@ccm.fm.intel.com> - */ - -#include <sys/param.h> -#include <sys/socket.h> -#include <sys/time.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <arpa/nameser.h> -#include <errno.h> -#include <limits.h> -#include <netdb.h> -#include <resolv.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -/* - * Separate a linked list of records into groups so that all records - * in a group will belong to a single zone on the nameserver. - * Create a dynamic update packet for each zone and send it to the - * nameservers for that zone, and await answer. - * Abort if error occurs in updating any zone. - * Return the number of zones updated on success, < 0 on error. - * - * On error, caller must deal with the unsynchronized zones - * eg. an A record might have been successfully added to the forward - * zone but the corresponding PTR record would be missing if error - * was encountered while updating the reverse zone. - */ - -#define NSMAX 16 - -struct ns1 { - char nsname[MAXDNAME]; - struct in_addr nsaddr1; -}; - -struct zonegrp { - char z_origin[MAXDNAME]; - int16_t z_class; - char z_soardata[MAXDNAME + 5 * INT32SZ]; - struct ns1 z_ns[NSMAX]; - int z_nscount; - ns_updrec * z_rr; - struct zonegrp *z_next; -}; - - -int -res_update(ns_updrec *rrecp_in) { - ns_updrec *rrecp, *tmprrecp; - u_char buf[PACKETSZ], answer[PACKETSZ], packet[2*PACKETSZ]; - char name[MAXDNAME], zname[MAXDNAME], primary[MAXDNAME], - mailaddr[MAXDNAME]; - u_char soardata[2*MAXCDNAME+5*INT32SZ]; - char *dname, *svdname, *cp1, *target; - u_char *cp, *eom; - HEADER *hp = (HEADER *) answer; - struct zonegrp *zptr = NULL, *tmpzptr, *prevzptr, *zgrp_start = NULL; - int i, j, k = 0, n, ancount, nscount, arcount, rcode, rdatasize, - newgroup, done, myzone, seen_before, numzones = 0; - u_int16_t dlen, class, qclass, type, qtype; - u_int32_t ttl; - - if ((_res.options & RES_INIT) == 0 && res_init() == -1) { - h_errno = NETDB_INTERNAL; - return (-1); - } - - for (rrecp = rrecp_in; rrecp; rrecp = rrecp->r_next) { - dname = rrecp->r_dname; - n = strlen(dname); - if (dname[n-1] == '.') - dname[n-1] = '\0'; - qtype = T_SOA; - qclass = rrecp->r_class; - done = 0; - seen_before = 0; - - while (!done && dname) { - if (qtype == T_SOA) { - for (tmpzptr = zgrp_start; - tmpzptr && !seen_before; - tmpzptr = tmpzptr->z_next) { - if (strcasecmp(dname, - tmpzptr->z_origin) == 0 && - tmpzptr->z_class == qclass) - seen_before++; - for (tmprrecp = tmpzptr->z_rr; - tmprrecp && !seen_before; - tmprrecp = tmprrecp->r_grpnext) - if (strcasecmp(dname, tmprrecp->r_dname) == 0 - && tmprrecp->r_class == qclass) { - seen_before++; - break; - } - if (seen_before) { - /* - * Append to the end of - * current group. - */ - for (tmprrecp = tmpzptr->z_rr; - tmprrecp->r_grpnext; - tmprrecp = tmprrecp->r_grpnext) - (void)NULL; - tmprrecp->r_grpnext = rrecp; - rrecp->r_grpnext = NULL; - done = 1; - break; - } - } - } else if (qtype == T_A) { - for (tmpzptr = zgrp_start; - tmpzptr && !done; - tmpzptr = tmpzptr->z_next) - for (i = 0; i < tmpzptr->z_nscount; i++) - if (tmpzptr->z_class == qclass && - strcasecmp(tmpzptr->z_ns[i].nsname, - dname) == 0 && - tmpzptr->z_ns[i].nsaddr1.s_addr != 0) { - zptr->z_ns[k].nsaddr1.s_addr = - tmpzptr->z_ns[i].nsaddr1.s_addr; - done = 1; - break; - } - } - if (done) - break; - n = res_mkquery(QUERY, dname, qclass, qtype, NULL, - 0, NULL, buf, sizeof buf); - if (n <= 0) { - fprintf(stderr, "res_update: mkquery failed\n"); - return (n); - } - n = res_send(buf, n, answer, sizeof answer); - if (n < 0) { - fprintf(stderr, "res_update: send error for %s\n", - rrecp->r_dname); - return (n); - } - if (n < HFIXEDSZ) - return (-1); - ancount = ntohs(hp->ancount); - nscount = ntohs(hp->nscount); - arcount = ntohs(hp->arcount); - rcode = hp->rcode; - cp = answer + HFIXEDSZ; - eom = answer + n; - /* skip the question section */ - n = dn_skipname(cp, eom); - if (n < 0 || cp + n + 2 * INT16SZ > eom) - return (-1); - cp += n + 2 * INT16SZ; - - if (qtype == T_SOA) { - if (ancount == 0 && nscount == 0 && arcount == 0) { - /* - * if (rcode == NOERROR) then the dname exists but - * has no soa record associated with it. - * if (rcode == NXDOMAIN) then the dname does not - * exist and the server is replying out of NCACHE. - * in either case, proceed with the next try - */ - dname = strchr(dname, '.'); - if (dname != NULL) - dname++; - continue; - } else if ((rcode == NOERROR || rcode == NXDOMAIN) && - ancount == 0 && - nscount == 1 && arcount == 0) { - /* - * name/data does not exist, soa record supplied in the - * authority section - */ - /* authority section must contain the soa record */ - if ((n = dn_expand(answer, eom, cp, zname, - sizeof zname)) < 0) - return (n); - cp += n; - if (cp + 2 * INT16SZ > eom) - return (-1); - GETSHORT(type, cp); - GETSHORT(class, cp); - if (type != T_SOA || class != qclass) { - fprintf(stderr, "unknown answer\n"); - return (-1); - } - myzone = 0; - svdname = dname; - while (dname) - if (strcasecmp(dname, zname) == 0) { - myzone = 1; - break; - } else if ((dname = strchr(dname, '.')) != NULL) - dname++; - if (!myzone) { - dname = strchr(svdname, '.'); - if (dname != NULL) - dname++; - continue; - } - nscount = 0; - /* fallthrough */ - } else if (rcode == NOERROR && ancount == 1) { - /* - * found the zone name - * new servers will supply NS records for the zone - * in authority section and A records for those - * nameservers in the additional section - * older servers have to be explicitly queried for - * NS records for the zone - */ - /* answer section must contain the soa record */ - if ((n = dn_expand(answer, eom, cp, zname, - sizeof zname)) < 0) - return (n); - else - cp += n; - if (cp + 2 * INT16SZ > eom) - return (-1); - GETSHORT(type, cp); - GETSHORT(class, cp); - if (type == T_CNAME) { - dname = strchr(dname, '.'); - if (dname != NULL) - dname++; - continue; - } - if (strcasecmp(dname, zname) != 0 || - type != T_SOA || - class != rrecp->r_class) { - fprintf(stderr, "unknown answer\n"); - return (-1); - } - /* FALLTHROUGH */ - } else { - fprintf(stderr, - "unknown response: ans=%d, auth=%d, add=%d, rcode=%d\n", - ancount, nscount, arcount, hp->rcode); - return (-1); - } - if (cp + INT32SZ + INT16SZ > eom) - return (-1); - /* continue processing the soa record */ - GETLONG(ttl, cp); - GETSHORT(dlen, cp); - if (cp + dlen > eom) - return (-1); - newgroup = 1; - zptr = zgrp_start; - prevzptr = NULL; - while (zptr) { - if (strcasecmp(zname, zptr->z_origin) == 0 && - type == T_SOA && class == qclass) { - newgroup = 0; - break; - } - prevzptr = zptr; - zptr = zptr->z_next; - } - if (!newgroup) { - for (tmprrecp = zptr->z_rr; - tmprrecp->r_grpnext; - tmprrecp = tmprrecp->r_grpnext) - ; - tmprrecp->r_grpnext = rrecp; - rrecp->r_grpnext = NULL; - done = 1; - cp += dlen; - break; - } else { - if ((n = dn_expand(answer, eom, cp, primary, - sizeof primary)) < 0) - return (n); - cp += n; - /* - * We don't have to bounds check here because the - * next use of 'cp' is in dn_expand(). - */ - cp1 = (char *)soardata; - strcpy(cp1, primary); - cp1 += strlen(cp1) + 1; - if ((n = dn_expand(answer, eom, cp, mailaddr, - sizeof mailaddr)) < 0) - return (n); - cp += n; - strcpy(cp1, mailaddr); - cp1 += strlen(cp1) + 1; - if (cp + 5*INT32SZ > eom) - return (-1); - memcpy(cp1, cp, 5*INT32SZ); - cp += 5*INT32SZ; - cp1 += 5*INT32SZ; - rdatasize = (u_char *)cp1 - soardata; - zptr = calloc(1, sizeof(struct zonegrp)); - if (zptr == NULL) - return (-1); - if (zgrp_start == NULL) - zgrp_start = zptr; - else - prevzptr->z_next = zptr; - zptr->z_rr = rrecp; - rrecp->r_grpnext = NULL; - strcpy(zptr->z_origin, zname); - zptr->z_class = class; - memcpy(zptr->z_soardata, soardata, rdatasize); - /* fallthrough to process NS and A records */ - } - } else if (qtype == T_NS) { - if (rcode == NOERROR && ancount > 0) { - strcpy(zname, dname); - for (zptr = zgrp_start; zptr; zptr = zptr->z_next) { - if (strcasecmp(zname, zptr->z_origin) == 0) - break; - } - if (zptr == NULL) - /* should not happen */ - return (-1); - if (nscount > 0) { - /* - * answer and authority sections contain - * the same information, skip answer section - */ - for (j = 0; j < ancount; j++) { - n = dn_skipname(cp, eom); - if (n < 0) - return (-1); - n += 2*INT16SZ + INT32SZ; - if (cp + n + INT16SZ > eom) - return (-1); - cp += n; - GETSHORT(dlen, cp); - cp += dlen; - } - } else - nscount = ancount; - /* fallthrough to process NS and A records */ - } else { - fprintf(stderr, "cannot determine nameservers for %s:\ -ans=%d, auth=%d, add=%d, rcode=%d\n", - dname, ancount, nscount, arcount, hp->rcode); - return (-1); - } - } else if (qtype == T_A) { - if (rcode == NOERROR && ancount > 0) { - arcount = ancount; - ancount = nscount = 0; - /* fallthrough to process A records */ - } else { - fprintf(stderr, "cannot determine address for %s:\ -ans=%d, auth=%d, add=%d, rcode=%d\n", - dname, ancount, nscount, arcount, hp->rcode); - return (-1); - } - } - /* process NS records for the zone */ - j = 0; - for (i = 0; i < nscount; i++) { - if ((n = dn_expand(answer, eom, cp, name, - sizeof name)) < 0) - return (n); - cp += n; - if (cp + 3 * INT16SZ + INT32SZ > eom) - return (-1); - GETSHORT(type, cp); - GETSHORT(class, cp); - GETLONG(ttl, cp); - GETSHORT(dlen, cp); - if (cp + dlen > eom) - return (-1); - if (strcasecmp(name, zname) == 0 && - type == T_NS && class == qclass) { - if ((n = dn_expand(answer, eom, cp, - name, sizeof name)) < 0) - return (n); - target = zptr->z_ns[j++].nsname; - strcpy(target, name); - } - cp += dlen; - } - if (zptr->z_nscount == 0) - zptr->z_nscount = j; - /* get addresses for the nameservers */ - for (i = 0; i < arcount; i++) { - if ((n = dn_expand(answer, eom, cp, name, - sizeof name)) < 0) - return (n); - cp += n; - if (cp + 3 * INT16SZ + INT32SZ > eom) - return (-1); - GETSHORT(type, cp); - GETSHORT(class, cp); - GETLONG(ttl, cp); - GETSHORT(dlen, cp); - if (cp + dlen > eom) - return (-1); - if (type == T_A && dlen == INT32SZ && class == qclass) { - for (j = 0; j < zptr->z_nscount; j++) - if (strcasecmp(name, zptr->z_ns[j].nsname) == 0) { - memcpy(&zptr->z_ns[j].nsaddr1.s_addr, cp, - INT32SZ); - break; - } - } - cp += dlen; - } - if (zptr->z_nscount == 0) { - dname = zname; - qtype = T_NS; - continue; - } - done = 1; - for (k = 0; k < zptr->z_nscount; k++) - if (zptr->z_ns[k].nsaddr1.s_addr == 0) { - done = 0; - dname = zptr->z_ns[k].nsname; - qtype = T_A; - } - - } /* while */ - } - - _res.options |= RES_DEBUG; - for (zptr = zgrp_start; zptr; zptr = zptr->z_next) { - - /* append zone section */ - rrecp = res_mkupdrec(ns_s_zn, zptr->z_origin, - zptr->z_class, ns_t_soa, 0); - if (rrecp == NULL) { - fprintf(stderr, "saverrec error\n"); - fflush(stderr); - return (-1); - } - rrecp->r_grpnext = zptr->z_rr; - zptr->z_rr = rrecp; - - n = res_mkupdate(zptr->z_rr, packet, sizeof packet); - if (n < 0) { - fprintf(stderr, "res_mkupdate error\n"); - fflush(stderr); - return (-1); - } else - fprintf(stdout, "res_mkupdate: packet size = %d\n", n); - - /* - * Override the list of NS records from res_init() with - * the authoritative nameservers for the zone being updated. - * Sort primary to be the first in the list of nameservers. - */ - for (i = 0; i < zptr->z_nscount; i++) { - if (strcasecmp(zptr->z_ns[i].nsname, - zptr->z_soardata) == 0) { - struct in_addr tmpaddr; - - if (i != 0) { - strcpy(zptr->z_ns[i].nsname, - zptr->z_ns[0].nsname); - strcpy(zptr->z_ns[0].nsname, - zptr->z_soardata); - tmpaddr = zptr->z_ns[i].nsaddr1; - zptr->z_ns[i].nsaddr1 = - zptr->z_ns[0].nsaddr1; - zptr->z_ns[0].nsaddr1 = tmpaddr; - } - break; - } - } - for (i = 0; i < MAXNS; i++) { - _res.nsaddr_list[i].sin_addr = zptr->z_ns[i].nsaddr1; - _res.nsaddr_list[i].sin_family = AF_INET; - _res.nsaddr_list[i].sin_port = htons(NAMESERVER_PORT); - } - _res.nscount = (zptr->z_nscount < MAXNS) ? - zptr->z_nscount : MAXNS; - n = res_send(packet, n, answer, sizeof(answer)); - if (n < 0) { - fprintf(stderr, "res_send: send error, n=%d\n", n); - break; - } else - numzones++; - } - - /* free malloc'ed memory */ - while(zgrp_start) { - zptr = zgrp_start; - zgrp_start = zgrp_start->z_next; - res_freeupdrec(zptr->z_rr); /* Zone section we allocated. */ - free((char *)zptr); - } - - return (numzones); -} diff --git a/lib/libc/net/resolver.3 b/lib/libc/net/resolver.3 deleted file mode 100644 index 4e71585..0000000 --- a/lib/libc/net/resolver.3 +++ /dev/null @@ -1,352 +0,0 @@ -.\" Copyright (c) 1985, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" @(#)resolver.3 8.1 (Berkeley) 6/4/93 -.\" $FreeBSD$ -.\" -.Dd June 4, 1993 -.Dt RESOLVER 3 -.Os BSD 4.3 -.Sh NAME -.Nm res_query , -.Nm res_search , -.Nm res_mkquery , -.Nm res_send , -.Nm res_init , -.Nm dn_comp , -.Nm dn_expand -.Nd resolver routines -.Sh SYNOPSIS -.Fd #include <sys/types.h> -.Fd #include <netinet/in.h> -.Fd #include <arpa/nameser.h> -.Fd #include <resolv.h> -.Ft int -.Fo res_query -.Fa "const char *dname" -.Fa "int class" -.Fa "int type" -.Fa "u_char *answer" -.Fa "int anslen" -.Fc -.Ft int -.Fo res_search -.Fa "const char *dname" -.Fa "int class" -.Fa "int type" -.Fa "u_char *answer" -.Fa "int anslen" -.Fc -.Ft int -.Fo res_mkquery -.Fa "int op" -.Fa "const char *dname" -.Fa "int class" -.Fa "int type" -.Fa "const u_char *data" -.Fa "int datalen" -.Fa "const u_char *newrr_in" -.Fa "u_char *buf" -.Fa "int buflen" -.Fc -.Ft int -.Fo res_send -.Fa "const u_char *msg" -.Fa "int msglen" -.Fa "u_char *answer" -.Fa "int anslen" -.Fc -.Ft int -.Fn res_init -.Fo dn_comp -.Fa "const char *exp_dn" -.Fa "u_char *comp_dn" -.Fa "int length" -.Fa "u_char **dnptrs" -.Fa "u_char **lastdnptr" -.Fc -.Ft int -.Fo dn_expand -.Fa "const u_char *msg" -.Fa "const u_char *eomorig" -.Fa "const u_char *comp_dn" -.Fa "char *exp_dn" -.Fa "int length" -.Fc -.Sh DESCRIPTION -These routines are used for making, sending and interpreting -query and reply messages with Internet domain name servers. -.Pp -Global configuration and state information that is used by the -resolver routines is kept in the structure -.Em _res . -Most of the values have reasonable defaults and can be ignored. -Options -stored in -.Em _res.options -are defined in -.Pa resolv.h -and are as follows. -Options are stored as a simple bit mask containing the bitwise ``or'' -of the options enabled. -.Bl -tag -width RES_DEFNAMES -.It Dv RES_INIT -True if the initial name server address and default domain name are -initialized (i.e., -.Fn res_init -has been called). -.It Dv RES_DEBUG -Print debugging messages. -.It Dv RES_AAONLY -Accept authoritative answers only. -With this option, -.Fn res_send -should continue until it finds an authoritative answer or finds an error. -Currently this is not implemented. -.It Dv RES_USEVC -Use -.Tn TCP -connections for queries instead of -.Tn UDP -datagrams. -.It Dv RES_STAYOPEN -Used with -.Dv RES_USEVC -to keep the -.Tn TCP -connection open between -queries. -This is useful only in programs that regularly do many queries. -.Tn UDP -should be the normal mode used. -.It Dv RES_IGNTC -Unused currently (ignore truncation errors, i.e., don't retry with -.Tn TCP ) . -.It Dv RES_RECURSE -Set the recursion-desired bit in queries. -This is the default. -.Pf ( Fn res_send -does not do iterative queries and expects the name server -to handle recursion.) -.It Dv RES_DEFNAMES -If set, -.Fn res_search -will append the default domain name to single-component names -(those that do not contain a dot). -This option is enabled by default. -.It Dv RES_DNSRCH -If this option is set, -.Fn res_search -will search for host names in the current domain and in parent domains; see -.Xr hostname 7 . -This is used by the standard host lookup routine -.Xr gethostbyname 3 . -This option is enabled by default. -.It Dv RES_NOALIASES -This option turns off the user level aliasing feature controlled by the -.Dq Ev HOSTALIASES -environment variable. Network daemons should set this option. -.El -.Pp -The -.Fn res_init -routine -reads the configuration file (if any; see -.Xr resolver 5 ) -to get the default domain name, -search list and -the Internet address of the local name server(s). -If no server is configured, the host running -the resolver is tried. -The current domain name is defined by the hostname -if not specified in the configuration file; -it can be overridden by the environment variable -.Ev LOCALDOMAIN . -This environment variable may contain several blank-separated -tokens if you wish to override the -.Em "search list" -on a per-process basis. This is similar to the -.Em search -command in the configuration file. -Another environment variable ( -.Dq Ev RES_OPTIONS -can be set to -override certain internal resolver options which are otherwise -set by changing fields in the -.Em _res -structure or are inherited from the configuration file's -.Em options -command. The syntax of the -.Dq Ev RES_OPTIONS -environment variable is explained in -.Xr resolver 5 . -Initialization normally occurs on the first call -to one of the following routines. -.Pp -The -.Fn res_query -function provides an interface to the server query mechanism. -It constructs a query, sends it to the local server, -awaits a response, and makes preliminary checks on the reply. -The query requests information of the specified -.Fa type -and -.Fa class -for the specified fully-qualified domain name -.Fa dname . -The reply message is left in the -.Fa answer -buffer with length -.Fa anslen -supplied by the caller. -.Pp -The -.Fn res_search -routine makes a query and awaits a response like -.Fn res_query , -but in addition, it implements the default and search rules -controlled by the -.Dv RES_DEFNAMES -and -.Dv RES_DNSRCH -options. -It returns the first successful reply. -.Pp -The remaining routines are lower-level routines used by -.Fn res_query . -The -.Fn res_mkquery -function -constructs a standard query message and places it in -.Fa buf . -It returns the size of the query, or \-1 if the query is -larger than -.Fa buflen . -The query type -.Fa op -is usually -.Dv QUERY , -but can be any of the query types defined in -.Aq Pa arpa/nameser.h . -The domain name for the query is given by -.Fa dname . -.Fa Newrr -is currently unused but is intended for making update messages. -.Pp -The -.Fn res_send -routine -sends a pre-formatted query and returns an answer. -It will call -.Fn res_init -if -.Dv RES_INIT -is not set, send the query to the local name server, and -handle timeouts and retries. -The length of the reply message is returned, or -\-1 if there were errors. -.Pp -The -.Fn dn_comp -function -compresses the domain name -.Fa exp_dn -and stores it in -.Fa comp_dn . -The size of the compressed name is returned or \-1 if there were errors. -The size of the array pointed to by -.Fa comp_dn -is given by -.Fa length . -The compression uses -an array of pointers -.Fa dnptrs -to previously-compressed names in the current message. -The first pointer points to -the beginning of the message and the list ends with -.Dv NULL . -The limit to the array is specified by -.Fa lastdnptr . -A side effect of -.Fn dn_comp -is to update the list of pointers for -labels inserted into the message -as the name is compressed. -If -.Em dnptr -is -.Dv NULL, names are not compressed. -If -.Fa lastdnptr -is -.Dv NULL , -the list of labels is not updated. -.Pp -The -.Fn dn_expand -entry -expands the compressed domain name -.Fa comp_dn -to a full domain name -The compressed name is contained in a query or reply message; -.Fa msg -is a pointer to the beginning of the message. -The uncompressed name is placed in the buffer indicated by -.Fa exp_dn -which is of size -.Fa length . -The size of compressed name is returned or \-1 if there was an error. -.Sh FILES -.Bl -tag -width Pa -/etc/resolv.conf -The configuration file -see -.Xr resolver 5 . -.El -.Sh SEE ALSO -.Xr gethostbyname 3 , -.Xr resolver 5 , -.Xr hostname 7 , -.Xr named 8 -.Pp -.%T RFC1032 , -.%T RFC1033 , -.%T RFC1034 , -.%T RFC1035 , -.%T RFC974 -.Rs -.%T "Name Server Operations Guide for BIND" -.Re -.Sh HISTORY -The -.Nm -function appeared in -.Bx 4.3 . diff --git a/lib/libc/net/rthdr.c b/lib/libc/net/rthdr.c deleted file mode 100644 index 1f9d102..0000000 --- a/lib/libc/net/rthdr.c +++ /dev/null @@ -1,310 +0,0 @@ -/* - * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <sys/param.h> -#include <sys/types.h> -#include <sys/socket.h> - -#include <netinet/in.h> -#include <netinet/ip6.h> - -#include <string.h> -#include <stdio.h> - -size_t -inet6_rthdr_space(type, seg) - int type, seg; -{ - switch(type) { - case IPV6_RTHDR_TYPE_0: - if (seg < 1 || seg > 23) - return(0); - return(CMSG_SPACE(sizeof(struct in6_addr) * (seg - 1) - + sizeof(struct ip6_rthdr0))); - default: -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_space: unknown type(%d)\n", type); -#endif - return(0); - } -} - -struct cmsghdr * -inet6_rthdr_init(bp, type) - void *bp; - int type; -{ - register struct cmsghdr *ch = (struct cmsghdr *)bp; - register struct ip6_rthdr *rthdr; - - rthdr = (struct ip6_rthdr *)CMSG_DATA(ch); - - ch->cmsg_level = IPPROTO_IPV6; - ch->cmsg_type = IPV6_RTHDR; - - switch(type) { - case IPV6_RTHDR_TYPE_0: - ch->cmsg_len = CMSG_LEN(sizeof(struct ip6_rthdr0) - sizeof(struct in6_addr)); - bzero(rthdr, sizeof(struct ip6_rthdr0)); - rthdr->ip6r_type = IPV6_RTHDR_TYPE_0; - return(ch); - default: -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_init: unknown type(%d)\n", type); -#endif - return(NULL); - } -} - -int -inet6_rthdr_add(cmsg, addr, flags) - struct cmsghdr *cmsg; - const struct in6_addr *addr; - u_int flags; -{ - register struct ip6_rthdr *rthdr; - - rthdr = (struct ip6_rthdr *)CMSG_DATA(cmsg); - - switch(rthdr->ip6r_type) { - case IPV6_RTHDR_TYPE_0: - { - struct ip6_rthdr0 *rt0 = (struct ip6_rthdr0 *)rthdr; - if (flags != IPV6_RTHDR_LOOSE && flags != IPV6_RTHDR_STRICT) { -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_add: unsupported flag(%d)\n", flags); -#endif - return(-1); - } - if (rt0->ip6r0_segleft == 23) { -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_add: segment overflow\n"); -#endif - return(-1); - } - if (flags == IPV6_RTHDR_STRICT) { - int c, b; - c = rt0->ip6r0_segleft / 8; - b = rt0->ip6r0_segleft % 8; - rt0->ip6r0_slmap[c] |= (1 << (7 - b)); - } - rt0->ip6r0_segleft++; - bcopy(addr, (caddr_t)rt0 + ((rt0->ip6r0_len + 1) << 3), - sizeof(struct in6_addr)); - rt0->ip6r0_len += sizeof(struct in6_addr) >> 3; - cmsg->cmsg_len = CMSG_LEN((rt0->ip6r0_len + 1) << 3); - break; - } - default: -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_add: unknown type(%d)\n", - rthdr->ip6r_type); -#endif - return(-1); - } - - return(0); -} - -int -inet6_rthdr_lasthop(cmsg, flags) - struct cmsghdr *cmsg; - unsigned int flags; -{ - register struct ip6_rthdr *rthdr; - - rthdr = (struct ip6_rthdr *)CMSG_DATA(cmsg); - - switch(rthdr->ip6r_type) { - case IPV6_RTHDR_TYPE_0: - { - struct ip6_rthdr0 *rt0 = (struct ip6_rthdr0 *)rthdr; - if (flags != IPV6_RTHDR_LOOSE && flags != IPV6_RTHDR_STRICT) { -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_lasthop: unsupported flag(%d)\n", flags); -#endif - return(-1); - } - if (rt0->ip6r0_segleft > 23) { -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_add: segment overflow\n"); -#endif - return(-1); - } - if (flags == IPV6_RTHDR_STRICT) { - int c, b; - c = rt0->ip6r0_segleft / 8; - b = rt0->ip6r0_segleft % 8; - rt0->ip6r0_slmap[c] |= (1 << (7 - b)); - } - break; - } - default: -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_lasthop: unknown type(%d)\n", - rthdr->ip6r_type); -#endif - return(-1); - } - - return(0); -} - -#if 0 -int -inet6_rthdr_reverse(in, out) - const struct cmsghdr *in; - struct cmsghdr *out; -{ -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_reverse: not implemented yet\n"); -#endif - return -1; -} -#endif - -int -inet6_rthdr_segments(cmsg) - const struct cmsghdr *cmsg; -{ - register struct ip6_rthdr *rthdr; - - rthdr = (struct ip6_rthdr *)CMSG_DATA(cmsg); - - switch(rthdr->ip6r_type) { - case IPV6_RTHDR_TYPE_0: - { - struct ip6_rthdr0 *rt0 = (struct ip6_rthdr0 *)rthdr; - - if (rt0->ip6r0_len % 2 || 46 < rt0->ip6r0_len) { -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_segments: invalid size(%d)\n", - rt0->ip6r0_len); -#endif - return -1; - } - - return (rt0->ip6r0_len * 8) / sizeof(struct in6_addr); - } - - default: -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_segments: unknown type(%d)\n", - rthdr->ip6r_type); -#endif - return -1; - } -} - -struct in6_addr * -inet6_rthdr_getaddr(cmsg, index) - struct cmsghdr *cmsg; - int index; -{ - register struct ip6_rthdr *rthdr; - - rthdr = (struct ip6_rthdr *)CMSG_DATA(cmsg); - - switch(rthdr->ip6r_type) { - case IPV6_RTHDR_TYPE_0: - { - struct ip6_rthdr0 *rt0 = (struct ip6_rthdr0 *)rthdr; - int naddr; - - if (rt0->ip6r0_len % 2 || 46 < rt0->ip6r0_len) { -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_getaddr: invalid size(%d)\n", - rt0->ip6r0_len); -#endif - return NULL; - } - naddr = (rt0->ip6r0_len * 8) / sizeof(struct in6_addr); - if (index <= 0 || naddr < index) { -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_getaddr: invalid index(%d)\n", index); -#endif - return NULL; - } - return &rt0->ip6r0_addr[index - 1]; - } - - default: -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_getaddr: unknown type(%d)\n", - rthdr->ip6r_type); -#endif - return NULL; - } -} - -int -inet6_rthdr_getflags(cmsg, index) - const struct cmsghdr *cmsg; - int index; -{ - register struct ip6_rthdr *rthdr; - - rthdr = (struct ip6_rthdr *)CMSG_DATA(cmsg); - - switch(rthdr->ip6r_type) { - case IPV6_RTHDR_TYPE_0: - { - struct ip6_rthdr0 *rt0 = (struct ip6_rthdr0 *)rthdr; - int naddr; - - if (rt0->ip6r0_len % 2 || 46 < rt0->ip6r0_len) { -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_getflags: invalid size(%d)\n", - rt0->ip6r0_len); -#endif - return -1; - } - naddr = (rt0->ip6r0_len * 8) / sizeof(struct in6_addr); - if (index < 0 || naddr < index) { -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_getflags: invalid index(%d)\n", index); -#endif - return -1; - } - if (rt0->ip6r0_slmap[index / 8] & (0x80 >> (index % 8))) - return IPV6_RTHDR_STRICT; - else - return IPV6_RTHDR_LOOSE; - } - - default: -#ifdef DEBUG - fprintf(stderr, "inet6_rthdr_getflags: unknown type(%d)\n", - rthdr->ip6r_type); -#endif - return -1; - } -} diff --git a/lib/libc/net/send.c b/lib/libc/net/send.c deleted file mode 100644 index 81151c4..0000000 --- a/lib/libc/net/send.c +++ /dev/null @@ -1,50 +0,0 @@ -/* - * Copyright (c) 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)send.c 8.2 (Berkeley) 2/21/94"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/types.h> -#include <sys/socket.h> - -#include <stddef.h> - -ssize_t -send(s, msg, len, flags) - int s, flags; - size_t len; - const void *msg; -{ - return (sendto(s, msg, len, flags, NULL, 0)); -} diff --git a/lib/libc/net/vars.c b/lib/libc/net/vars.c deleted file mode 100644 index bf6b57a..0000000 --- a/lib/libc/net/vars.c +++ /dev/null @@ -1,42 +0,0 @@ -/* - * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the project nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <sys/types.h> -#include <netinet/in.h> - -/* - * Definitions of some costant IPv6 addresses. - */ -const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT; -const struct in6_addr in6addr_loopback = IN6ADDR_LOOPBACK_INIT; -const struct in6_addr in6addr_nodelocal_allnodes = IN6ADDR_NODELOCAL_ALLNODES_INIT; -const struct in6_addr in6addr_linklocal_allnodes = IN6ADDR_LINKLOCAL_ALLNODES_INIT; - |
