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authorume <ume@FreeBSD.org>2006-03-21 15:57:58 +0000
committerume <ume@FreeBSD.org>2006-03-21 15:57:58 +0000
commit2f6de5238b74dcc115e35762410ad0175dbf8e67 (patch)
tree76f448a8f5c515e5502434153bf9c715e54ecc7c
parentbc31c32e5982c1c5b30ed3e0a87db3f9a37a585d (diff)
downloadFreeBSD-src-2f6de5238b74dcc115e35762410ad0175dbf8e67.zip
FreeBSD-src-2f6de5238b74dcc115e35762410ad0175dbf8e67.tar.gz
Vendor import of BIND 9.3.2
-rw-r--r--include/arpa/inet.h85
-rw-r--r--include/arpa/nameser.h708
-rw-r--r--include/arpa/nameser_compat.h44
-rw-r--r--include/resolv.h526
4 files changed, 1046 insertions, 317 deletions
diff --git a/include/arpa/inet.h b/include/arpa/inet.h
index a231484..46caa49 100644
--- a/include/arpa/inet.h
+++ b/include/arpa/inet.h
@@ -1,7 +1,9 @@
/*
+ * ++Copyright++ 1983, 1993
+ * -
* Copyright (c) 1983, 1993
- * The Regents of the University of California. All rights reserved.
- *
+ * 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:
@@ -12,12 +14,12 @@
* 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.
+ * 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
@@ -29,8 +31,31 @@
* 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--
+ */
+
+/*
* @(#)inet.h 8.1 (Berkeley) 6/2/93
+ * $Id: inet.h,v 1.1.206.1 2004/03/09 08:33:30 marka Exp $
*/
#ifndef _INET_H_
@@ -38,16 +63,62 @@
/* External definitions for functions in inet(3) */
+#include <sys/param.h>
+#if (!defined(BSD)) || (BSD < 199306)
+# include <sys/bitypes.h>
+#else
+# include <sys/types.h>
+#endif
#include <sys/cdefs.h>
+#define inet_addr __inet_addr
+#define inet_aton __inet_aton
+#define inet_lnaof __inet_lnaof
+#define inet_makeaddr __inet_makeaddr
+#define inet_neta __inet_neta
+#define inet_netof __inet_netof
+#define inet_network __inet_network
+#define inet_net_ntop __inet_net_ntop
+#define inet_net_pton __inet_net_pton
+#define inet_cidr_ntop __inet_cidr_ntop
+#define inet_cidr_pton __inet_cidr_pton
+#define inet_ntoa __inet_ntoa
+#define inet_pton __inet_pton
+#define inet_ntop __inet_ntop
+#define inet_nsap_addr __inet_nsap_addr
+#define inet_nsap_ntoa __inet_nsap_ntoa
+
__BEGIN_DECLS
unsigned long inet_addr __P((const char *));
int inet_aton __P((const char *, struct in_addr *));
unsigned long inet_lnaof __P((struct in_addr));
struct in_addr inet_makeaddr __P((u_long , u_long));
+char * inet_neta __P((u_long, char *, size_t));
unsigned long inet_netof __P((struct in_addr));
unsigned long inet_network __P((const char *));
-char *inet_ntoa __P((struct in_addr));
+char *inet_net_ntop __P((int, const void *, int, char *, size_t));
+int inet_net_pton __P((int, const char *, void *, size_t));
+char *inet_cidr_ntop __P((int, const void *, int, char *, size_t));
+int inet_cidr_pton __P((int, const char *, void *, int *));
+/*const*/ char *inet_ntoa __P((struct in_addr));
+int inet_pton __P((int, const char *, void *));
+const char *inet_ntop __P((int, const void *, char *, size_t));
+u_int inet_nsap_addr __P((const char *, u_char *, int));
+char *inet_nsap_ntoa __P((int, const u_char *, char *));
__END_DECLS
+#if defined(__hpux) && defined(_XOPEN_SOURCE_EXTENDED)
+/*
+ * Macros for number representation conversion.
+ *
+ * netinet/in.h is another location for these macros
+ */
+#ifndef ntohl
+#define ntohl(x) (x)
+#define ntohs(x) (x)
+#define htonl(x) (x)
+#define htons(x) (x)
+#endif
+#endif
+
#endif /* !_INET_H_ */
diff --git a/include/arpa/nameser.h b/include/arpa/nameser.h
index bef010c..23db498 100644
--- a/include/arpa/nameser.h
+++ b/include/arpa/nameser.h
@@ -1,7 +1,7 @@
/*
* Copyright (c) 1983, 1989, 1993
- * The Regents of the University of California. All rights reserved.
- *
+ * 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:
@@ -12,12 +12,12 @@
* 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.
+ * 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
@@ -29,270 +29,548 @@
* 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.
+ */
+
+/*
+ * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (c) 1996-1999 by Internet Software Consortium.
*
- * @(#)nameser.h 8.2 (Berkeley) 2/16/94
- * -
- * 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--
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC 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.
+ */
+
+/*
+ * $Id: nameser.h,v 1.2.2.4.4.1 2004/03/09 08:33:30 marka Exp $
*/
-#ifndef _NAMESER_H_
-#define _NAMESER_H_
+#ifndef _ARPA_NAMESER_H_
+#define _ARPA_NAMESER_H_
+
+#define BIND_4_COMPAT
-#include <sys/types.h>
+#include <sys/param.h>
+#if (!defined(BSD)) || (BSD < 199306)
+# include <sys/bitypes.h>
+#else
+# include <sys/types.h>
+#endif
+#include <sys/cdefs.h>
/*
- * Define constants based on rfc883
+ * Revision information. This is the release date in YYYYMMDD format.
+ * It can change every day so the right thing to do with it is use it
+ * in preprocessor commands such as "#if (__NAMESER > 19931104)". Do not
+ * compare for equality; rather, use it to determine whether your libbind.a
+ * contains a new enough lib/nameser/ to support the feature you need.
*/
-#define PACKETSZ 512 /* maximum packet size */
-#define MAXDNAME 256 /* maximum domain name */
-#define MAXCDNAME 255 /* maximum compressed domain name */
-#define MAXLABEL 63 /* maximum length of domain label */
- /* Number of bytes of fixed size data in query structure */
-#define QFIXEDSZ 4
- /* number of bytes of fixed size data in resource record */
-#define RRFIXEDSZ 10
+
+#define __NAMESER 19991006 /* New interface version stamp. */
/*
- * Internet nameserver port number
+ * Define constants based on RFC 883, RFC 1034, RFC 1035
*/
-#define NAMESERVER_PORT 53
+#define NS_PACKETSZ 512 /* default UDP packet size */
+#define NS_MAXDNAME 1025 /* maximum domain name */
+#define NS_MAXMSG 65535 /* maximum message size */
+#define NS_MAXCDNAME 255 /* maximum compressed domain name */
+#define NS_MAXLABEL 63 /* maximum length of domain label */
+#define NS_HFIXEDSZ 12 /* #/bytes of fixed data in header */
+#define NS_QFIXEDSZ 4 /* #/bytes of fixed data in query */
+#define NS_RRFIXEDSZ 10 /* #/bytes of fixed data in r record */
+#define NS_INT32SZ 4 /* #/bytes of data in a u_int32_t */
+#define NS_INT16SZ 2 /* #/bytes of data in a u_int16_t */
+#define NS_INT8SZ 1 /* #/bytes of data in a u_int8_t */
+#define NS_INADDRSZ 4 /* IPv4 T_A */
+#define NS_IN6ADDRSZ 16 /* IPv6 T_AAAA */
+#define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */
+#define NS_DEFAULTPORT 53 /* For both TCP and UDP. */
/*
- * Currently defined opcodes
+ * These can be expanded with synonyms, just keep ns_parse.c:ns_parserecord()
+ * in synch with it.
*/
-#define QUERY 0x0 /* standard query */
-#define IQUERY 0x1 /* inverse query */
-#define STATUS 0x2 /* nameserver status query */
-/*#define xxx 0x3 /* 0x3 reserved */
- /* non standard - supports ALLOW_UPDATES stuff from Mike Schwartz */
-#define UPDATEA 0x9 /* add resource record */
-#define UPDATED 0xa /* delete a specific resource record */
-#define UPDATEDA 0xb /* delete all named resource record */
-#define UPDATEM 0xc /* modify a specific resource record */
-#define UPDATEMA 0xd /* modify all named resource record */
-
-#define ZONEINIT 0xe /* initial zone transfer */
-#define ZONEREF 0xf /* incremental zone referesh */
+typedef enum __ns_sect {
+ ns_s_qd = 0, /* Query: Question. */
+ ns_s_zn = 0, /* Update: Zone. */
+ ns_s_an = 1, /* Query: Answer. */
+ ns_s_pr = 1, /* Update: Prerequisites. */
+ ns_s_ns = 2, /* Query: Name servers. */
+ ns_s_ud = 2, /* Update: Update. */
+ ns_s_ar = 3, /* Query|Update: Additional records. */
+ ns_s_max = 4
+} ns_sect;
/*
- * Currently defined response codes
+ * This is a message handle. It is caller allocated and has no dynamic data.
+ * This structure is intended to be opaque to all but ns_parse.c, thus the
+ * leading _'s on the member names. Use the accessor functions, not the _'s.
*/
-#define NOERROR 0 /* no error */
-#define FORMERR 1 /* format error */
-#define SERVFAIL 2 /* server failure */
-#define NXDOMAIN 3 /* non existent domain */
-#define NOTIMP 4 /* not implemented */
-#define REFUSED 5 /* query refused */
- /* non standard */
-#define NOCHANGE 0xf /* update failed to change db */
+typedef struct __ns_msg {
+ const u_char *_msg, *_eom;
+ u_int16_t _id, _flags, _counts[ns_s_max];
+ const u_char *_sections[ns_s_max];
+ ns_sect _sect;
+ int _rrnum;
+ const u_char *_msg_ptr;
+} ns_msg;
+
+/* Private data structure - do not use from outside library. */
+struct _ns_flagdata { int mask, shift; };
+extern struct _ns_flagdata _ns_flagdata[];
+
+/* Accessor macros - this is part of the public interface. */
+
+#define ns_msg_id(handle) ((handle)._id + 0)
+#define ns_msg_base(handle) ((handle)._msg + 0)
+#define ns_msg_end(handle) ((handle)._eom + 0)
+#define ns_msg_size(handle) ((handle)._eom - (handle)._msg)
+#define ns_msg_count(handle, section) ((handle)._counts[section] + 0)
/*
- * Type values for resources and queries
+ * This is a parsed record. It is caller allocated and has no dynamic data.
*/
-#define T_A 1 /* host address */
-#define T_NS 2 /* authoritative server */
-#define T_MD 3 /* mail destination */
-#define T_MF 4 /* mail forwarder */
-#define T_CNAME 5 /* connonical name */
-#define T_SOA 6 /* start of authority zone */
-#define T_MB 7 /* mailbox domain name */
-#define T_MG 8 /* mail group member */
-#define T_MR 9 /* mail rename name */
-#define T_NULL 10 /* null resource record */
-#define T_WKS 11 /* well known service */
-#define T_PTR 12 /* domain name pointer */
-#define T_HINFO 13 /* host information */
-#define T_MINFO 14 /* mailbox information */
-#define T_MX 15 /* mail routing information */
-#define T_TXT 16 /* text strings */
-#define T_RP 17 /* responsible person */
-#define T_AFSDB 18 /* AFS cell database */
-#define T_NSAP 22 /* NSAP address */
-#define T_NSAP_PTR 23 /* reverse lookup for NSAP */
- /* non standard */
-#define T_UINFO 100 /* user (finger) information */
-#define T_UID 101 /* user ID */
-#define T_GID 102 /* group ID */
-#define T_UNSPEC 103 /* Unspecified format (binary data) */
- /* Query type values which do not appear in resource records */
-#define T_AXFR 252 /* transfer zone of authority */
-#define T_MAILB 253 /* transfer mailbox records */
-#define T_MAILA 254 /* transfer mail agent records */
-#define T_ANY 255 /* wildcard match */
+typedef struct __ns_rr {
+ char name[NS_MAXDNAME];
+ u_int16_t type;
+ u_int16_t rr_class;
+ u_int32_t ttl;
+ u_int16_t rdlength;
+ const u_char * rdata;
+} ns_rr;
+
+/* Accessor macros - this is part of the public interface. */
+#define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".")
+#define ns_rr_type(rr) ((ns_type)((rr).type + 0))
+#define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0))
+#define ns_rr_ttl(rr) ((rr).ttl + 0)
+#define ns_rr_rdlen(rr) ((rr).rdlength + 0)
+#define ns_rr_rdata(rr) ((rr).rdata + 0)
/*
- * Values for class field
+ * These don't have to be in the same order as in the packet flags word,
+ * and they can even overlap in some cases, but they will need to be kept
+ * in synch with ns_parse.c:ns_flagdata[].
*/
+typedef enum __ns_flag {
+ ns_f_qr, /* Question/Response. */
+ ns_f_opcode, /* Operation code. */
+ ns_f_aa, /* Authoritative Answer. */
+ ns_f_tc, /* Truncation occurred. */
+ ns_f_rd, /* Recursion Desired. */
+ ns_f_ra, /* Recursion Available. */
+ ns_f_z, /* MBZ. */
+ ns_f_ad, /* Authentic Data (DNSSEC). */
+ ns_f_cd, /* Checking Disabled (DNSSEC). */
+ ns_f_rcode, /* Response code. */
+ ns_f_max
+} ns_flag;
-#define C_IN 1 /* the arpa internet */
-#define C_CHAOS 3 /* for chaos net (MIT) */
-#define C_HS 4 /* for Hesiod name server (MIT) (XXX) */
- /* Query class values which do not appear in resource records */
-#define C_ANY 255 /* wildcard match */
+/*
+ * Currently defined opcodes.
+ */
+typedef enum __ns_opcode {
+ ns_o_query = 0, /* Standard query. */
+ ns_o_iquery = 1, /* Inverse query (deprecated/unsupported). */
+ ns_o_status = 2, /* Name server status query (unsupported). */
+ /* Opcode 3 is undefined/reserved. */
+ ns_o_notify = 4, /* Zone change notification. */
+ ns_o_update = 5, /* Zone update message. */
+ ns_o_max = 6
+} ns_opcode;
/*
- * Status return codes for T_UNSPEC conversion routines
+ * Currently defined response codes.
*/
-#define CONV_SUCCESS 0
-#define CONV_OVERFLOW -1
-#define CONV_BADFMT -2
-#define CONV_BADCKSUM -3
-#define CONV_BADBUFLEN -4
-
-#ifndef BYTE_ORDER
-#define LITTLE_ENDIAN 1234 /* least-significant byte first (vax, pc) */
-#define BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */
-#define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp)*/
-
-#if defined(vax) || defined(ns32000) || defined(sun386) || defined(i386) || \
- defined(MIPSEL) || defined(_MIPSEL) || defined(BIT_ZERO_ON_RIGHT) || \
- defined(__alpha__) || defined(__alpha)
-#define BYTE_ORDER LITTLE_ENDIAN
-#endif
+typedef enum __ns_rcode {
+ ns_r_noerror = 0, /* No error occurred. */
+ ns_r_formerr = 1, /* Format error. */
+ ns_r_servfail = 2, /* Server failure. */
+ ns_r_nxdomain = 3, /* Name error. */
+ ns_r_notimpl = 4, /* Unimplemented. */
+ ns_r_refused = 5, /* Operation refused. */
+ /* these are for BIND_UPDATE */
+ ns_r_yxdomain = 6, /* Name exists */
+ ns_r_yxrrset = 7, /* RRset exists */
+ ns_r_nxrrset = 8, /* RRset does not exist */
+ ns_r_notauth = 9, /* Not authoritative for zone */
+ ns_r_notzone = 10, /* Zone of record different from zone section */
+ ns_r_max = 11,
+ /* The following are EDNS extended rcodes */
+ ns_r_badvers = 16,
+ /* The following are TSIG errors */
+ ns_r_badsig = 16,
+ ns_r_badkey = 17,
+ ns_r_badtime = 18
+} ns_rcode;
-#if defined(sel) || defined(pyr) || defined(mc68000) || defined(sparc) || \
- defined(is68k) || defined(tahoe) || defined(ibm032) || defined(ibm370) || \
- defined(MIPSEB) || defined(_MIPSEB) || defined(_IBMR2) || \
- defined(apollo) || defined(hp9000) || defined(hp9000s300) || \
- defined (BIT_ZERO_ON_LEFT)
-#define BYTE_ORDER BIG_ENDIAN
-#endif
-#endif /* BYTE_ORDER */
-
-#if !defined(BYTE_ORDER) || \
- (BYTE_ORDER != BIG_ENDIAN && BYTE_ORDER != LITTLE_ENDIAN && \
- BYTE_ORDER != PDP_ENDIAN)
- /* you must determine what the correct bit order is for
- * your compiler - the next line is an intentional error
- * which will force your compiles to bomb until you fix
- * the above macros.
- */
- #error "Undefined or invalid BYTE_ORDER";
-#endif
+/* BIND_UPDATE */
+typedef enum __ns_update_operation {
+ ns_uop_delete = 0,
+ ns_uop_add = 1,
+ ns_uop_max = 2
+} ns_update_operation;
/*
- * Structure for query header. The order of the fields is machine- and
- * compiler-dependent, depending on the byte/bit order and the layout
- * of bit fields. We use bit fields only in int variables, as this
- * is all ANSI requires. This requires a somewhat confusing rearrangement.
+ * This structure is used for TSIG authenticated messages
*/
+struct ns_tsig_key {
+ char name[NS_MAXDNAME], alg[NS_MAXDNAME];
+ unsigned char *data;
+ int len;
+};
+typedef struct ns_tsig_key ns_tsig_key;
-typedef struct {
- u_int16_t id; /* query identification number */
-#if BYTE_ORDER == BIG_ENDIAN
- /* fields in third byte */
- u_int qr:1; /* response flag */
- u_int opcode:4; /* purpose of message */
- u_int aa:1; /* authoritive answer */
- u_int tc:1; /* truncated message */
- u_int rd:1; /* recursion desired */
- /* fields in fourth byte */
- u_int ra:1; /* recursion available */
- u_int pr:1; /* primary server required (non standard) */
- u_int unused:2; /* unused bits */
- u_int rcode:4; /* response code */
-#endif
-#if BYTE_ORDER == LITTLE_ENDIAN || BYTE_ORDER == PDP_ENDIAN
- /* fields in third byte */
- u_int rd:1; /* recursion desired */
- u_int tc:1; /* truncated message */
- u_int aa:1; /* authoritive answer */
- u_int opcode:4; /* purpose of message */
- u_int qr:1; /* response flag */
- /* fields in fourth byte */
- u_int rcode:4; /* response code */
- u_int unused:2; /* unused bits */
- u_int pr:1; /* primary server required (non standard) */
- u_int ra:1; /* recursion available */
-#endif
- /* remaining bytes */
- u_int16_t qdcount; /* number of question entries */
- u_int16_t ancount; /* number of answer entries */
- u_int16_t nscount; /* number of authority entries */
- u_int16_t arcount; /* number of resource entries */
-} HEADER;
+/*
+ * This structure is used for TSIG authenticated TCP messages
+ */
+struct ns_tcp_tsig_state {
+ int counter;
+ struct dst_key *key;
+ void *ctx;
+ unsigned char sig[NS_PACKETSZ];
+ int siglen;
+};
+typedef struct ns_tcp_tsig_state ns_tcp_tsig_state;
+
+#define NS_TSIG_FUDGE 300
+#define NS_TSIG_TCP_COUNT 100
+#define NS_TSIG_ALG_HMAC_MD5 "HMAC-MD5.SIG-ALG.REG.INT"
+
+#define NS_TSIG_ERROR_NO_TSIG -10
+#define NS_TSIG_ERROR_NO_SPACE -11
+#define NS_TSIG_ERROR_FORMERR -12
/*
- * Defines for handling compressed domain names
+ * Currently defined type values for resources and queries.
*/
-#define INDIR_MASK 0xc0
+typedef enum __ns_type {
+ ns_t_invalid = 0, /* Cookie. */
+ ns_t_a = 1, /* Host address. */
+ ns_t_ns = 2, /* Authoritative server. */
+ ns_t_md = 3, /* Mail destination. */
+ ns_t_mf = 4, /* Mail forwarder. */
+ ns_t_cname = 5, /* Canonical name. */
+ ns_t_soa = 6, /* Start of authority zone. */
+ ns_t_mb = 7, /* Mailbox domain name. */
+ ns_t_mg = 8, /* Mail group member. */
+ ns_t_mr = 9, /* Mail rename name. */
+ ns_t_null = 10, /* Null resource record. */
+ ns_t_wks = 11, /* Well known service. */
+ ns_t_ptr = 12, /* Domain name pointer. */
+ ns_t_hinfo = 13, /* Host information. */
+ ns_t_minfo = 14, /* Mailbox information. */
+ ns_t_mx = 15, /* Mail routing information. */
+ ns_t_txt = 16, /* Text strings. */
+ ns_t_rp = 17, /* Responsible person. */
+ ns_t_afsdb = 18, /* AFS cell database. */
+ ns_t_x25 = 19, /* X_25 calling address. */
+ ns_t_isdn = 20, /* ISDN calling address. */
+ ns_t_rt = 21, /* Router. */
+ ns_t_nsap = 22, /* NSAP address. */
+ ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */
+ ns_t_sig = 24, /* Security signature. */
+ ns_t_key = 25, /* Security key. */
+ ns_t_px = 26, /* X.400 mail mapping. */
+ ns_t_gpos = 27, /* Geographical position (withdrawn). */
+ ns_t_aaaa = 28, /* Ip6 Address. */
+ ns_t_loc = 29, /* Location Information. */
+ ns_t_nxt = 30, /* Next domain (security). */
+ ns_t_eid = 31, /* Endpoint identifier. */
+ ns_t_nimloc = 32, /* Nimrod Locator. */
+ ns_t_srv = 33, /* Server Selection. */
+ ns_t_atma = 34, /* ATM Address */
+ ns_t_naptr = 35, /* Naming Authority PoinTeR */
+ ns_t_kx = 36, /* Key Exchange */
+ ns_t_cert = 37, /* Certification record */
+ ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */
+ ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */
+ ns_t_sink = 40, /* Kitchen sink (experimentatl) */
+ ns_t_opt = 41, /* EDNS0 option (meta-RR) */
+ ns_t_apl = 42, /* Address prefix list (RFC 3123) */
+ ns_t_tkey = 249, /* Transaction key */
+ ns_t_tsig = 250, /* Transaction signature. */
+ ns_t_ixfr = 251, /* Incremental zone transfer. */
+ ns_t_axfr = 252, /* Transfer zone of authority. */
+ ns_t_mailb = 253, /* Transfer mailbox records. */
+ ns_t_maila = 254, /* Transfer mail agent records. */
+ ns_t_any = 255, /* Wildcard match. */
+ ns_t_zxfr = 256, /* BIND-specific, nonstandard. */
+ ns_t_max = 65536
+} ns_type;
+
+/* Exclusively a QTYPE? (not also an RTYPE) */
+#define ns_t_qt_p(t) (ns_t_xfr_p(t) || (t) == ns_t_any || \
+ (t) == ns_t_mailb || (t) == ns_t_maila)
+/* Some kind of meta-RR? (not a QTYPE, but also not an RTYPE) */
+#define ns_t_mrr_p(t) ((t) == ns_t_tsig || (t) == ns_t_opt)
+/* Exclusively an RTYPE? (not also a QTYPE or a meta-RR) */
+#define ns_t_rr_p(t) (!ns_t_qt_p(t) && !ns_t_mrr_p(t))
+#define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr)
+#define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \
+ (t) == ns_t_zxfr)
/*
- * Structure for passing resource records around.
+ * Values for class field
*/
-struct rrec {
- int16_t r_zone; /* zone number */
- int16_t r_class; /* class number */
- int16_t r_type; /* type number */
- u_int32_t r_ttl; /* time to live */
- int r_size; /* size of data area */
- char *r_data; /* pointer to data */
-};
+typedef enum __ns_class {
+ ns_c_invalid = 0, /* Cookie. */
+ ns_c_in = 1, /* Internet. */
+ ns_c_2 = 2, /* unallocated/unsupported. */
+ ns_c_chaos = 3, /* MIT Chaos-net. */
+ ns_c_hs = 4, /* MIT Hesiod. */
+ /* Query class values which do not appear in resource records */
+ ns_c_none = 254, /* for prereq. sections in update requests */
+ ns_c_any = 255, /* Wildcard match. */
+ ns_c_max = 65536
+} ns_class;
+
+/* DNSSEC constants. */
+
+typedef enum __ns_key_types {
+ ns_kt_rsa = 1, /* key type RSA/MD5 */
+ ns_kt_dh = 2, /* Diffie Hellman */
+ ns_kt_dsa = 3, /* Digital Signature Standard (MANDATORY) */
+ ns_kt_private = 254 /* Private key type starts with OID */
+} ns_key_types;
+
+typedef enum __ns_cert_types {
+ cert_t_pkix = 1, /* PKIX (X.509v3) */
+ cert_t_spki = 2, /* SPKI */
+ cert_t_pgp = 3, /* PGP */
+ cert_t_url = 253, /* URL private type */
+ cert_t_oid = 254 /* OID private type */
+} ns_cert_types;
+
+/* Flags field of the KEY RR rdata. */
+#define NS_KEY_TYPEMASK 0xC000 /* Mask for "type" bits */
+#define NS_KEY_TYPE_AUTH_CONF 0x0000 /* Key usable for both */
+#define NS_KEY_TYPE_CONF_ONLY 0x8000 /* Key usable for confidentiality */
+#define NS_KEY_TYPE_AUTH_ONLY 0x4000 /* Key usable for authentication */
+#define NS_KEY_TYPE_NO_KEY 0xC000 /* No key usable for either; no key */
+/* The type bits can also be interpreted independently, as single bits: */
+#define NS_KEY_NO_AUTH 0x8000 /* Key unusable for authentication */
+#define NS_KEY_NO_CONF 0x4000 /* Key unusable for confidentiality */
+#define NS_KEY_RESERVED2 0x2000 /* Security is *mandatory* if bit=0 */
+#define NS_KEY_EXTENDED_FLAGS 0x1000 /* reserved - must be zero */
+#define NS_KEY_RESERVED4 0x0800 /* reserved - must be zero */
+#define NS_KEY_RESERVED5 0x0400 /* reserved - must be zero */
+#define NS_KEY_NAME_TYPE 0x0300 /* these bits determine the type */
+#define NS_KEY_NAME_USER 0x0000 /* key is assoc. with user */
+#define NS_KEY_NAME_ENTITY 0x0200 /* key is assoc. with entity eg host */
+#define NS_KEY_NAME_ZONE 0x0100 /* key is zone key */
+#define NS_KEY_NAME_RESERVED 0x0300 /* reserved meaning */
+#define NS_KEY_RESERVED8 0x0080 /* reserved - must be zero */
+#define NS_KEY_RESERVED9 0x0040 /* reserved - must be zero */
+#define NS_KEY_RESERVED10 0x0020 /* reserved - must be zero */
+#define NS_KEY_RESERVED11 0x0010 /* reserved - must be zero */
+#define NS_KEY_SIGNATORYMASK 0x000F /* key can sign RR's of same name */
+#define NS_KEY_RESERVED_BITMASK ( NS_KEY_RESERVED2 | \
+ NS_KEY_RESERVED4 | \
+ NS_KEY_RESERVED5 | \
+ NS_KEY_RESERVED8 | \
+ NS_KEY_RESERVED9 | \
+ NS_KEY_RESERVED10 | \
+ NS_KEY_RESERVED11 )
+#define NS_KEY_RESERVED_BITMASK2 0xFFFF /* no bits defined here */
+
+/* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */
+#define NS_ALG_MD5RSA 1 /* MD5 with RSA */
+#define NS_ALG_DH 2 /* Diffie Hellman KEY */
+#define NS_ALG_DSA 3 /* DSA KEY */
+#define NS_ALG_DSS NS_ALG_DSA
+#define NS_ALG_EXPIRE_ONLY 253 /* No alg, no security */
+#define NS_ALG_PRIVATE_OID 254 /* Key begins with OID giving alg */
+
+/* Protocol values */
+/* value 0 is reserved */
+#define NS_KEY_PROT_TLS 1
+#define NS_KEY_PROT_EMAIL 2
+#define NS_KEY_PROT_DNSSEC 3
+#define NS_KEY_PROT_IPSEC 4
+#define NS_KEY_PROT_ANY 255
+
+/* Signatures */
+#define NS_MD5RSA_MIN_BITS 512 /* Size of a mod or exp in bits */
+#define NS_MD5RSA_MAX_BITS 4096
+ /* Total of binary mod and exp */
+#define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3)
+ /* Max length of text sig block */
+#define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4)
+#define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8)
+#define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8)
+
+#define NS_DSA_SIG_SIZE 41
+#define NS_DSA_MIN_SIZE 213
+#define NS_DSA_MAX_BYTES 405
+
+/* Offsets into SIG record rdata to find various values */
+#define NS_SIG_TYPE 0 /* Type flags */
+#define NS_SIG_ALG 2 /* Algorithm */
+#define NS_SIG_LABELS 3 /* How many labels in name */
+#define NS_SIG_OTTL 4 /* Original TTL */
+#define NS_SIG_EXPIR 8 /* Expiration time */
+#define NS_SIG_SIGNED 12 /* Signature time */
+#define NS_SIG_FOOT 16 /* Key footprint */
+#define NS_SIG_SIGNER 18 /* Domain name of who signed it */
-extern u_int16_t _getshort();
-extern u_int32_t _getlong();
+/* How RR types are represented as bit-flags in NXT records */
+#define NS_NXT_BITS 8
+#define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS)))
+#define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS)))
+#define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS)))
+#define NS_NXT_MAX 127
+
+/*
+ * EDNS0 extended flags, host order.
+ */
+#define NS_OPT_DNSSEC_OK 0x8000U
/*
* Inline versions of get/put short/long. Pointer is advanced.
- * We also assume that a "u_int16_t" holds 2 "chars"
- * and that a "u_int32_t" holds 4 "chars".
- *
- * These macros demonstrate the property of C whereby it can be
- * portable or it can be elegant but never both.
*/
-#define GETSHORT(s, cp) { \
- register u_char *t_cp = (u_char *)(cp); \
- (s) = ((u_int16_t)t_cp[0] << 8) | (u_int16_t)t_cp[1]; \
- (cp) += 2; \
-}
+#define NS_GET16(s, cp) do { \
+ register const u_char *t_cp = (const u_char *)(cp); \
+ (s) = ((u_int16_t)t_cp[0] << 8) \
+ | ((u_int16_t)t_cp[1]) \
+ ; \
+ (cp) += NS_INT16SZ; \
+} while (0)
-#define GETLONG(l, cp) { \
- register u_char *t_cp = (u_char *)(cp); \
- (l) = (((u_int32_t)t_cp[0]) << 24) \
- | (((u_int32_t)t_cp[1]) << 16) \
- | (((u_int32_t)t_cp[2]) << 8) \
- | (((u_int32_t)t_cp[3])); \
- (cp) += 4; \
-}
-
-#define PUTSHORT(s, cp) { \
+#define NS_GET32(l, cp) do { \
+ register const u_char *t_cp = (const u_char *)(cp); \
+ (l) = ((u_int32_t)t_cp[0] << 24) \
+ | ((u_int32_t)t_cp[1] << 16) \
+ | ((u_int32_t)t_cp[2] << 8) \
+ | ((u_int32_t)t_cp[3]) \
+ ; \
+ (cp) += NS_INT32SZ; \
+} while (0)
+
+#define NS_PUT16(s, cp) do { \
register u_int16_t t_s = (u_int16_t)(s); \
register u_char *t_cp = (u_char *)(cp); \
*t_cp++ = t_s >> 8; \
*t_cp = t_s; \
- (cp) += 2; \
-}
+ (cp) += NS_INT16SZ; \
+} while (0)
-/*
- * Warning: PUTLONG --no-longer-- destroys its first argument. if you
- * were depending on this "feature", you will lose.
- */
-#define PUTLONG(l, cp) { \
+#define NS_PUT32(l, cp) do { \
register u_int32_t t_l = (u_int32_t)(l); \
register u_char *t_cp = (u_char *)(cp); \
*t_cp++ = t_l >> 24; \
*t_cp++ = t_l >> 16; \
*t_cp++ = t_l >> 8; \
*t_cp = t_l; \
- (cp) += 4; \
-}
+ (cp) += NS_INT32SZ; \
+} while (0)
+
+/*
+ * ANSI C identifier hiding for bind's lib/nameser.
+ */
+#define ns_msg_getflag __ns_msg_getflag
+#define ns_get16 __ns_get16
+#define ns_get32 __ns_get32
+#define ns_put16 __ns_put16
+#define ns_put32 __ns_put32
+#define ns_initparse __ns_initparse
+#define ns_skiprr __ns_skiprr
+#define ns_parserr __ns_parserr
+#define ns_sprintrr __ns_sprintrr
+#define ns_sprintrrf __ns_sprintrrf
+#define ns_format_ttl __ns_format_ttl
+#define ns_parse_ttl __ns_parse_ttl
+#define ns_datetosecs __ns_datetosecs
+#define ns_name_ntol __ns_name_ntol
+#define ns_name_ntop __ns_name_ntop
+#define ns_name_pton __ns_name_pton
+#define ns_name_unpack __ns_name_unpack
+#define ns_name_pack __ns_name_pack
+#define ns_name_compress __ns_name_compress
+#define ns_name_uncompress __ns_name_uncompress
+#define ns_name_skip __ns_name_skip
+#define ns_name_rollback __ns_name_rollback
+#define ns_sign __ns_sign
+#define ns_sign2 __ns_sign2
+#define ns_sign_tcp __ns_sign_tcp
+#define ns_sign_tcp2 __ns_sign_tcp2
+#define ns_sign_tcp_init __ns_sign_tcp_init
+#define ns_find_tsig __ns_find_tsig
+#define ns_verify __ns_verify
+#define ns_verify_tcp __ns_verify_tcp
+#define ns_verify_tcp_init __ns_verify_tcp_init
+#define ns_samedomain __ns_samedomain
+#define ns_subdomain __ns_subdomain
+#define ns_makecanon __ns_makecanon
+#define ns_samename __ns_samename
+
+__BEGIN_DECLS
+int ns_msg_getflag __P((ns_msg, int));
+u_int ns_get16 __P((const u_char *));
+u_long ns_get32 __P((const u_char *));
+void ns_put16 __P((u_int, u_char *));
+void ns_put32 __P((u_long, u_char *));
+int ns_initparse __P((const u_char *, int, ns_msg *));
+int ns_skiprr __P((const u_char *, const u_char *, ns_sect, int));
+int ns_parserr __P((ns_msg *, ns_sect, int, ns_rr *));
+int ns_sprintrr __P((const ns_msg *, const ns_rr *,
+ const char *, const char *, char *, size_t));
+int ns_sprintrrf __P((const u_char *, size_t, const char *,
+ ns_class, ns_type, u_long, const u_char *,
+ size_t, const char *, const char *,
+ char *, size_t));
+int ns_format_ttl __P((u_long, char *, size_t));
+int ns_parse_ttl __P((const char *, u_long *));
+u_int32_t ns_datetosecs __P((const char *cp, int *errp));
+int ns_name_ntol __P((const u_char *, u_char *, size_t));
+int ns_name_ntop __P((const u_char *, char *, size_t));
+int ns_name_pton __P((const char *, u_char *, size_t));
+int ns_name_unpack __P((const u_char *, const u_char *,
+ const u_char *, u_char *, size_t));
+int ns_name_pack __P((const u_char *, u_char *, int,
+ const u_char **, const u_char **));
+int ns_name_uncompress __P((const u_char *, const u_char *,
+ const u_char *, char *, size_t));
+int ns_name_compress __P((const char *, u_char *, size_t,
+ const u_char **, const u_char **));
+int ns_name_skip __P((const u_char **, const u_char *));
+void ns_name_rollback __P((const u_char *, const u_char **,
+ const u_char **));
+int ns_sign __P((u_char *, int *, int, int, void *,
+ const u_char *, int, u_char *, int *, time_t));
+int ns_sign2 __P((u_char *, int *, int, int, void *,
+ const u_char *, int, u_char *, int *, time_t,
+ u_char **, u_char **));
+int ns_sign_tcp __P((u_char *, int *, int, int,
+ ns_tcp_tsig_state *, int));
+int ns_sign_tcp2 __P((u_char *, int *, int, int,
+ ns_tcp_tsig_state *, int,
+ u_char **, u_char **));
+int ns_sign_tcp_init __P((void *, const u_char *, int,
+ ns_tcp_tsig_state *));
+u_char *ns_find_tsig __P((u_char *, u_char *));
+int ns_verify __P((u_char *, int *, void *,
+ const u_char *, int, u_char *, int *,
+ time_t *, int));
+int ns_verify_tcp __P((u_char *, int *, ns_tcp_tsig_state *, int));
+int ns_verify_tcp_init __P((void *, const u_char *, int,
+ ns_tcp_tsig_state *));
+int ns_samedomain __P((const char *, const char *));
+int ns_subdomain __P((const char *, const char *));
+int ns_makecanon __P((const char *, char *, size_t));
+int ns_samename __P((const char *, const char *));
+__END_DECLS
+
+#ifdef BIND_4_COMPAT
+#include <arpa/nameser_compat.h>
+#endif
-#endif /* !_NAMESER_H_ */
+#endif /* !_ARPA_NAMESER_H_ */
diff --git a/include/arpa/nameser_compat.h b/include/arpa/nameser_compat.h
index 2ab5b47..464f12e 100644
--- a/include/arpa/nameser_compat.h
+++ b/include/arpa/nameser_compat.h
@@ -32,8 +32,7 @@
/*
* from nameser.h 8.1 (Berkeley) 6/2/93
- * From: Id: nameser_compat.h,v 8.9 1998/03/20 23:25:10 halley Exp
- * $Id$
+ * $Id: nameser_compat.h,v 1.1.2.3.4.2 2004/07/01 04:43:41 marka Exp $
*/
#ifndef _ARPA_NAMESER_COMPAT_
@@ -41,7 +40,39 @@
#define __BIND 19950621 /* (DEAD) interface version stamp. */
-#include <machine/endian.h>
+#ifndef BYTE_ORDER
+#if (BSD >= 199103)
+# include <machine/endian.h>
+#else
+#ifdef __linux
+# include <endian.h>
+#else
+#define LITTLE_ENDIAN 1234 /* least-significant byte first (vax, pc) */
+#define BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */
+#define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp)*/
+
+#if defined(vax) || defined(ns32000) || defined(sun386) || defined(i386) || \
+ defined(MIPSEL) || defined(_MIPSEL) || defined(BIT_ZERO_ON_RIGHT) || \
+ defined(__alpha__) || defined(__alpha) || \
+ (defined(__Lynx__) && defined(__x86__))
+#define BYTE_ORDER LITTLE_ENDIAN
+#endif
+
+#if defined(sel) || defined(pyr) || defined(mc68000) || defined(sparc) || \
+ defined(is68k) || defined(tahoe) || defined(ibm032) || defined(ibm370) || \
+ defined(MIPSEB) || defined(_MIPSEB) || defined(_IBMR2) || defined(DGUX) ||\
+ defined(apollo) || defined(__convex__) || defined(_CRAY) || \
+ defined(__hppa) || defined(__hp9000) || \
+ defined(__hp9000s300) || defined(__hp9000s700) || \
+ defined(__hp3000s900) || defined(__hpux) || defined(MPE) || \
+ defined (BIT_ZERO_ON_LEFT) || defined(m68k) || defined(__sparc) || \
+ (defined(__Lynx__) && \
+ (defined(__68k__) || defined(__sparc__) || defined(__powerpc__)))
+#define BYTE_ORDER BIG_ENDIAN
+#endif
+#endif /* __linux */
+#endif /* BSD */
+#endif /* BYTE_ORDER */
#if !defined(BYTE_ORDER) || \
(BYTE_ORDER != BIG_ENDIAN && BYTE_ORDER != LITTLE_ENDIAN && \
@@ -107,6 +138,7 @@ typedef struct {
#define RRFIXEDSZ NS_RRFIXEDSZ
#define INT32SZ NS_INT32SZ
#define INT16SZ NS_INT16SZ
+#define INT8SZ NS_INT8SZ
#define INADDRSZ NS_INADDRSZ
#define IN6ADDRSZ NS_IN6ADDRSZ
#define INDIR_MASK NS_CMPRSFLGS
@@ -134,6 +166,10 @@ typedef struct {
#define NXRRSET ns_r_nxrrset
#define NOTAUTH ns_r_notauth
#define NOTZONE ns_r_notzone
+/*#define BADSIG ns_r_badsig*/
+/*#define BADKEY ns_r_badkey*/
+/*#define BADTIME ns_r_badtime*/
+
#define DELETE ns_uop_delete
#define ADD ns_uop_add
@@ -173,6 +209,8 @@ typedef struct {
#define T_SRV ns_t_srv
#define T_ATMA ns_t_atma
#define T_NAPTR ns_t_naptr
+#define T_A6 ns_t_a6
+#define T_TSIG ns_t_tsig
#define T_IXFR ns_t_ixfr
#define T_AXFR ns_t_axfr
#define T_MAILB ns_t_mailb
diff --git a/include/resolv.h b/include/resolv.h
index cf8fe76..87a9520 100644
--- a/include/resolv.h
+++ b/include/resolv.h
@@ -1,7 +1,7 @@
-/*-
- * Copyright (c) 1983, 1987, 1989, 1993
- * The Regents of the University of California. All rights reserved.
- *
+/*
+ * Copyright (c) 1983, 1987, 1989
+ * 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:
@@ -12,12 +12,12 @@
* 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.
+ * 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
@@ -29,45 +29,114 @@
* 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.
+ */
+
+/*
+ * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
+ * Portions Copyright (c) 1996-1999 by Internet Software Consortium.
*
- * @(#)resolv.h 8.1 (Berkeley) 6/2/93
- * $Id: resolv.h,v 4.9.1.2 1993/05/17 09:59:01 vixie Exp $
- * -
- * 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--
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC 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.
+ */
+
+/*
+ * @(#)resolv.h 8.1 (Berkeley) 6/2/93
+ * $Id: resolv.h,v 1.7.2.11.4.3 2005/08/25 04:44:13 marka Exp $
*/
#ifndef _RESOLV_H_
#define _RESOLV_H_
-#include <sys/types.h>
+#include <sys/param.h>
+#if (!defined(BSD)) || (BSD < 199306)
+# include <sys/bitypes.h>
+#else
+# include <sys/types.h>
+#endif
+#include <sys/cdefs.h>
+#include <sys/socket.h>
+#include <stdio.h>
+#include <arpa/nameser.h>
+
+/*
+ * Revision information. This is the release date in YYYYMMDD format.
+ * It can change every day so the right thing to do with it is use it
+ * in preprocessor commands such as "#if (__RES > 19931104)". Do not
+ * compare for equality; rather, use it to determine whether your resolver
+ * is new enough to contain a certain feature.
+ */
+
+#define __RES 20030124
+
+/*
+ * This used to be defined in res_query.c, now it's in herror.c.
+ * [XXX no it's not. It's in irs/irs_data.c]
+ * It was
+ * never extern'd by any *.h file before it was placed here. For thread
+ * aware programs, the last h_errno value set is stored in res->h_errno.
+ *
+ * XXX: There doesn't seem to be a good reason for exposing RES_SET_H_ERRNO
+ * (and __h_errno_set) to the public via <resolv.h>.
+ * XXX: __h_errno_set is really part of IRS, not part of the resolver.
+ * If somebody wants to build and use a resolver that doesn't use IRS,
+ * what do they do? Perhaps something like
+ * #ifdef WANT_IRS
+ * # define RES_SET_H_ERRNO(r,x) __h_errno_set(r,x)
+ * #else
+ * # define RES_SET_H_ERRNO(r,x) (h_errno = (r)->res_h_errno = (x))
+ * #endif
+ */
+
+#define RES_SET_H_ERRNO(r,x) __h_errno_set(r,x)
+struct __res_state; /* forward */
+__BEGIN_DECLS
+void __h_errno_set(struct __res_state *res, int err);
+__END_DECLS
+
/*
* Resolver configuration file.
* Normally not present, but may contain the address of the
- * inital name server(s) to query and the domain search list.
+ * initial name server(s) to query and the domain search list.
*/
#ifndef _PATH_RESCONF
#define _PATH_RESCONF "/etc/resolv.conf"
#endif
+typedef enum { res_goahead, res_nextns, res_modified, res_done, res_error }
+ res_sendhookact;
+
+#ifndef __PMT
+#if defined(__STDC__) || defined(__cplusplus)
+#define __PMT(args) args
+#else
+#define __PMT(args) ()
+#endif
+#endif
+
+typedef res_sendhookact (*res_send_qhook)__PMT((struct sockaddr * const *,
+ const u_char **, int *,
+ u_char *, int, int *));
+
+typedef res_sendhookact (*res_send_rhook)__PMT((const struct sockaddr *,
+ const u_char *, int, u_char *,
+ int, int *));
+
+struct res_sym {
+ int number; /* Identifying number, like T_MX */
+ const char * name; /* Its symbolic name, like "MX" */
+ const char * humanname; /* Its fun name, like "mail exchanger" */
+};
+
/*
* Global defines and variables for resolver stub.
*/
@@ -77,88 +146,361 @@
#define LOCALDOMAINPARTS 2 /* min levels in name that is "local" */
#define RES_TIMEOUT 5 /* min. seconds between retries */
+#define MAXRESOLVSORT 10 /* number of net to sort on */
+#define RES_MAXNDOTS 15 /* should reflect bit field size */
+#define RES_MAXRETRANS 30 /* only for resolv.conf/RES_OPTIONS */
+#define RES_MAXRETRY 5 /* only for resolv.conf/RES_OPTIONS */
+#define RES_DFLRETRY 2 /* Default #/tries. */
+#define RES_MAXTIME 65535 /* Infinity, in milliseconds. */
+
+struct __res_state_ext;
struct __res_state {
- int retrans; /* retransmition time interval */
+ int retrans; /* retransmission time interval */
int retry; /* number of times to retransmit */
- long options; /* option flags - see below. */
+#ifdef sun
+ u_int options; /* option flags - see below. */
+#else
+ u_long options; /* option flags - see below. */
+#endif
int nscount; /* number of name servers */
- struct sockaddr_in nsaddr_list[MAXNS]; /* address of name server */
+ struct sockaddr_in
+ nsaddr_list[MAXNS]; /* address of name server */
#define nsaddr nsaddr_list[0] /* for backward compatibility */
- u_short id; /* current packet id */
+ u_short id; /* current message id */
char *dnsrch[MAXDNSRCH+1]; /* components of domain to search */
- char defdname[MAXDNAME]; /* default domain */
- long pfcode; /* RES_PRF_ flags - see below. */
+ char defdname[256]; /* default domain (deprecated) */
+#ifdef sun
+ u_int pfcode; /* RES_PRF_ flags - see below. */
+#else
+ u_long pfcode; /* RES_PRF_ flags - see below. */
+#endif
+ unsigned ndots:4; /* threshold for initial abs. query */
+ unsigned nsort:4; /* number of elements in sort_list[] */
+ char unused[3];
+ struct {
+ struct in_addr addr;
+ u_int32_t mask;
+ } sort_list[MAXRESOLVSORT];
+ res_send_qhook qhook; /* query hook */
+ res_send_rhook rhook; /* response hook */
+ int res_h_errno; /* last one set for this context */
+ int _vcsock; /* PRIVATE: for res_send VC i/o */
+ u_int _flags; /* PRIVATE: see below */
+ u_int _pad; /* make _u 64 bit aligned */
+ union {
+ /* On an 32-bit arch this means 512b total. */
+ char pad[72 - 4*sizeof (int) - 2*sizeof (void *)];
+ struct {
+ u_int16_t nscount;
+ u_int16_t nstimes[MAXNS]; /* ms. */
+ int nssocks[MAXNS];
+ struct __res_state_ext *ext; /* extention for IPv6 */
+ } _ext;
+ } _u;
+};
+
+typedef struct __res_state *res_state;
+
+union res_sockaddr_union {
+ struct sockaddr_in sin;
+#ifdef IN6ADDR_ANY_INIT
+ struct sockaddr_in6 sin6;
+#endif
+#ifdef ISC_ALIGN64
+ int64_t __align64; /* 64bit alignment */
+#else
+ int32_t __align32; /* 32bit alignment */
+#endif
+ char __space[128]; /* max size */
};
/*
+ * Resolver flags (used to be discrete per-module statics ints).
+ */
+#define RES_F_VC 0x00000001 /* socket is TCP */
+#define RES_F_CONN 0x00000002 /* socket is connected */
+#define RES_F_EDNS0ERR 0x00000004 /* EDNS0 caused errors */
+#define RES_F__UNUSED 0x00000008 /* (unused) */
+#define RES_F_LASTMASK 0x000000F0 /* ordinal server of last res_nsend */
+#define RES_F_LASTSHIFT 4 /* bit position of LASTMASK "flag" */
+#define RES_GETLAST(res) (((res)._flags & RES_F_LASTMASK) >> RES_F_LASTSHIFT)
+
+/* res_findzonecut2() options */
+#define RES_EXHAUSTIVE 0x00000001 /* always do all queries */
+#define RES_IPV4ONLY 0x00000002 /* IPv4 only */
+#define RES_IPV6ONLY 0x00000004 /* IPv6 only */
+
+/*
* Resolver options (keep these in synch with res_debug.c, please)
*/
-#define RES_INIT 0x0001 /* address initialized */
-#define RES_DEBUG 0x0002 /* print debug messages */
-#define RES_AAONLY 0x0004 /* authoritative answers only */
-#define RES_USEVC 0x0008 /* use virtual circuit */
-#define RES_PRIMARY 0x0010 /* query primary server only */
-#define RES_IGNTC 0x0020 /* ignore trucation errors */
-#define RES_RECURSE 0x0040 /* recursion desired */
-#define RES_DEFNAMES 0x0080 /* use default domain name */
-#define RES_STAYOPEN 0x0100 /* Keep TCP socket open */
-#define RES_DNSRCH 0x0200 /* search up local domain tree */
-
-#define RES_DEFAULT (RES_RECURSE | RES_DEFNAMES | RES_DNSRCH)
+#define RES_INIT 0x00000001 /* address initialized */
+#define RES_DEBUG 0x00000002 /* print debug messages */
+#define RES_AAONLY 0x00000004 /* authoritative answers only (!IMPL)*/
+#define RES_USEVC 0x00000008 /* use virtual circuit */
+#define RES_PRIMARY 0x00000010 /* query primary server only (!IMPL) */
+#define RES_IGNTC 0x00000020 /* ignore trucation errors */
+#define RES_RECURSE 0x00000040 /* recursion desired */
+#define RES_DEFNAMES 0x00000080 /* use default domain name */
+#define RES_STAYOPEN 0x00000100 /* Keep TCP socket open */
+#define RES_DNSRCH 0x00000200 /* search up local domain tree */
+#define RES_INSECURE1 0x00000400 /* type 1 security disabled */
+#define RES_INSECURE2 0x00000800 /* type 2 security disabled */
+#define RES_NOALIASES 0x00001000 /* shuts off HOSTALIASES feature */
+#define RES_USE_INET6 0x00002000 /* use/map IPv6 in gethostbyname() */
+#define RES_ROTATE 0x00004000 /* rotate ns list after each query */
+#define RES_NOCHECKNAME 0x00008000 /* do not check names for sanity. */
+#define RES_KEEPTSIG 0x00010000 /* do not strip TSIG records */
+#define RES_BLAST 0x00020000 /* blast all recursive servers */
+#define RES_NOTLDQUERY 0x00100000 /* don't unqualified name as a tld */
+#define RES_USE_DNSSEC 0x00200000 /* use DNSSEC using OK bit in OPT */
+/* #define RES_DEBUG2 0x00400000 */ /* nslookup internal */
+/* KAME extensions: use higher bit to avoid conflict with ISC use */
+#define RES_USE_DNAME 0x10000000 /* use DNAME */
+#define RES_USE_EDNS0 0x40000000 /* use EDNS0 if configured */
+#define RES_NO_NIBBLE2 0x80000000 /* disable alternate nibble lookup */
+
+#define RES_DEFAULT (RES_RECURSE | RES_DEFNAMES | \
+ RES_DNSRCH | RES_NO_NIBBLE2)
/*
* Resolver "pfcode" values. Used by dig.
*/
-#define RES_PRF_STATS 0x0001
-/* 0x0002 */
-#define RES_PRF_CLASS 0x0004
-#define RES_PRF_CMD 0x0008
-#define RES_PRF_QUES 0x0010
-#define RES_PRF_ANS 0x0020
-#define RES_PRF_AUTH 0x0040
-#define RES_PRF_ADD 0x0080
-#define RES_PRF_HEAD1 0x0100
-#define RES_PRF_HEAD2 0x0200
-#define RES_PRF_TTLID 0x0400
-#define RES_PRF_HEADX 0x0800
-#define RES_PRF_QUERY 0x1000
-#define RES_PRF_REPLY 0x2000
-#define RES_PRF_INIT 0x4000
-/* 0x8000 */
-
-#include <sys/cdefs.h>
-#include <stdio.h>
+#define RES_PRF_STATS 0x00000001
+#define RES_PRF_UPDATE 0x00000002
+#define RES_PRF_CLASS 0x00000004
+#define RES_PRF_CMD 0x00000008
+#define RES_PRF_QUES 0x00000010
+#define RES_PRF_ANS 0x00000020
+#define RES_PRF_AUTH 0x00000040
+#define RES_PRF_ADD 0x00000080
+#define RES_PRF_HEAD1 0x00000100
+#define RES_PRF_HEAD2 0x00000200
+#define RES_PRF_TTLID 0x00000400
+#define RES_PRF_HEADX 0x00000800
+#define RES_PRF_QUERY 0x00001000
+#define RES_PRF_REPLY 0x00002000
+#define RES_PRF_INIT 0x00004000
+#define RES_PRF_TRUNC 0x00008000
+/* 0x00010000 */
+/* Things involving an internal (static) resolver context. */
+#ifdef _REENTRANT
+__BEGIN_DECLS
+extern struct __res_state *__res_state(void);
+__END_DECLS
+#define _res (*__res_state())
+#else
+#ifdef __linux
+__BEGIN_DECLS
+extern struct __res_state * __res_state(void);
+__END_DECLS
+#endif
+#ifndef __BIND_NOSTATIC
extern struct __res_state _res;
+#endif
+#endif
+
+#ifndef __BIND_NOSTATIC
+#define fp_nquery __fp_nquery
+#define fp_query __fp_query
+#define hostalias __hostalias
+#define p_query __p_query
+#define res_close __res_close
+#define res_init __res_init
+#define res_isourserver __res_isourserver
+#define res_mkquery __res_mkquery
+#define res_query __res_query
+#define res_querydomain __res_querydomain
+#define res_search __res_search
+#define res_send __res_send
+#define res_sendsigned __res_sendsigned
-/* Private routines shared between libc/net, named, nslookup and others. */
-#define dn_skipname __dn_skipname
-#define fp_query __fp_query
-#define hostalias __hostalias
-#define putlong __putlong
-#define putshort __putshort
-#define p_class __p_class
-#define p_time __p_time
-#define p_type __p_type
__BEGIN_DECLS
-int __dn_skipname __P((const u_char *, const u_char *));
-void __fp_resstat __P((struct __res_state *, FILE *));
-void __fp_query __P((char *, FILE *));
-char *__hostalias __P((const char *));
-void __putlong __P((u_int32_t, u_char *));
-void __putshort __P((u_short, u_char *));
-char *__p_class __P((int));
-char *__p_time __P((u_int32_t));
-char *__p_type __P((int));
-
-int dn_comp __P((const u_char *, u_char *, int, u_char **, u_char **));
-int dn_expand __P((const u_char *, const u_char *, const u_char *,
- u_char *, int));
-int res_init __P((void));
-int res_mkquery __P((int, const char *, int, int, const char *, int,
- const char *, char *, int));
-int res_send __P((const char *, int, char *, int));
+void fp_nquery __P((const u_char *, int, FILE *));
+void fp_query __P((const u_char *, FILE *));
+const char * hostalias __P((const char *));
+void p_query __P((const u_char *));
+void res_close __P((void));
+int res_init __P((void));
+int res_isourserver __P((const struct sockaddr_in *));
+int res_mkquery __P((int, const char *, int, int, const u_char *,
+ int, const u_char *, u_char *, int));
+int res_query __P((const char *, int, int, u_char *, int));
+int res_querydomain __P((const char *, const char *, int, int,
+ u_char *, int));
+int res_search __P((const char *, int, int, u_char *, int));
+int res_send __P((const u_char *, int, u_char *, int));
+int res_sendsigned __P((const u_char *, int, ns_tsig_key *,
+ u_char *, int));
+__END_DECLS
+#endif
+
+#if !defined(SHARED_LIBBIND) || defined(LIB)
+/*
+ * If libbind is a shared object (well, DLL anyway)
+ * these externs break the linker when resolv.h is
+ * included by a lib client (like named)
+ * Make them go away if a client is including this
+ *
+ */
+extern const struct res_sym __p_key_syms[];
+extern const struct res_sym __p_cert_syms[];
+extern const struct res_sym __p_class_syms[];
+extern const struct res_sym __p_type_syms[];
+extern const struct res_sym __p_rcode_syms[];
+#endif /* SHARED_LIBBIND */
+
+#define b64_ntop __b64_ntop
+#define b64_pton __b64_pton
+#define dn_comp __dn_comp
+#define dn_count_labels __dn_count_labels
+#define dn_expand __dn_expand
+#define dn_skipname __dn_skipname
+#define fp_resstat __fp_resstat
+#define loc_aton __loc_aton
+#define loc_ntoa __loc_ntoa
+#define p_cdname __p_cdname
+#define p_cdnname __p_cdnname
+#define p_class __p_class
+#define p_fqname __p_fqname
+#define p_fqnname __p_fqnname
+#define p_option __p_option
+#define p_secstodate __p_secstodate
+#define p_section __p_section
+#define p_time __p_time
+#define p_type __p_type
+#define p_rcode __p_rcode
+#define p_sockun __p_sockun
+#define putlong __putlong
+#define putshort __putshort
+#define res_dnok __res_dnok
+#define res_findzonecut __res_findzonecut
+#define res_findzonecut2 __res_findzonecut2
+#define res_hnok __res_hnok
+#define res_hostalias __res_hostalias
+#define res_mailok __res_mailok
+#define res_nameinquery __res_nameinquery
+#define res_nclose __res_nclose
+#define res_ninit __res_ninit
+#define res_nmkquery __res_nmkquery
+#define res_pquery __res_pquery
+#define res_nquery __res_nquery
+#define res_nquerydomain __res_nquerydomain
+#define res_nsearch __res_nsearch
+#define res_nsend __res_nsend
+#define res_nsendsigned __res_nsendsigned
+#define res_nisourserver __res_nisourserver
+#define res_ownok __res_ownok
+#define res_queriesmatch __res_queriesmatch
+#define res_randomid __res_randomid
+#define sym_ntop __sym_ntop
+#define sym_ntos __sym_ntos
+#define sym_ston __sym_ston
+#define res_nopt __res_nopt
+#define res_ndestroy __res_ndestroy
+#define res_nametoclass __res_nametoclass
+#define res_nametotype __res_nametotype
+#define res_setservers __res_setservers
+#define res_getservers __res_getservers
+#define res_buildprotolist __res_buildprotolist
+#define res_destroyprotolist __res_destroyprotolist
+#define res_destroyservicelist __res_destroyservicelist
+#define res_get_nibblesuffix __res_get_nibblesuffix
+#define res_get_nibblesuffix2 __res_get_nibblesuffix2
+#define res_ourserver_p __res_ourserver_p
+#define res_protocolname __res_protocolname
+#define res_protocolnumber __res_protocolnumber
+#define res_send_setqhook __res_send_setqhook
+#define res_send_setrhook __res_send_setrhook
+#define res_servicename __res_servicename
+#define res_servicenumber __res_servicenumber
+__BEGIN_DECLS
+int res_hnok __P((const char *));
+int res_ownok __P((const char *));
+int res_mailok __P((const char *));
+int res_dnok __P((const char *));
+int sym_ston __P((const struct res_sym *, const char *, int *));
+const char * sym_ntos __P((const struct res_sym *, int, int *));
+const char * sym_ntop __P((const struct res_sym *, int, int *));
+int b64_ntop __P((u_char const *, size_t, char *, size_t));
+int b64_pton __P((char const *, u_char *, size_t));
+int loc_aton __P((const char *, u_char *));
+const char * loc_ntoa __P((const u_char *, char *));
+int dn_skipname __P((const u_char *, const u_char *));
+void putlong __P((u_int32_t, u_char *));
+void putshort __P((u_int16_t, u_char *));
+#ifndef __ultrix__
+u_int16_t _getshort __P((const u_char *));
+u_int32_t _getlong __P((const u_char *));
+#endif
+const char * p_class __P((int));
+const char * p_time __P((u_int32_t));
+const char * p_type __P((int));
+const char * p_rcode __P((int));
+const char * p_sockun __P((union res_sockaddr_union, char *, size_t));
+const u_char * p_cdnname __P((const u_char *, const u_char *, int, FILE *));
+const u_char * p_cdname __P((const u_char *, const u_char *, FILE *));
+const u_char * p_fqnname __P((const u_char *, const u_char *,
+ int, char *, int));
+const u_char * p_fqname __P((const u_char *, const u_char *, FILE *));
+const char * p_option __P((u_long));
+char * p_secstodate __P((u_long));
+int dn_count_labels __P((const char *));
+int dn_comp __P((const char *, u_char *, int,
+ u_char **, u_char **));
+int dn_expand __P((const u_char *, const u_char *, const u_char *,
+ char *, int));
+u_int res_randomid __P((void));
+int res_nameinquery __P((const char *, int, int, const u_char *,
+ const u_char *));
+int res_queriesmatch __P((const u_char *, const u_char *,
+ const u_char *, const u_char *));
+const char * p_section __P((int, int));
+/* Things involving a resolver context. */
+int res_ninit __P((res_state));
+int res_nisourserver __P((const res_state,
+ const struct sockaddr_in *));
+void fp_resstat __P((const res_state, FILE *));
+void res_pquery __P((const res_state, const u_char *, int, FILE *));
+const char * res_hostalias __P((const res_state, const char *,
+ char *, size_t));
+int res_nquery __P((res_state, const char *, int, int,
+ u_char *, int));
+int res_nsearch __P((res_state, const char *, int, int, u_char *,
+ int));
+int res_nquerydomain __P((res_state, const char *, const char *,
+ int, int, u_char *, int));
+int res_nmkquery __P((res_state, int, const char *, int, int,
+ const u_char *, int, const u_char *,
+ u_char *, int));
+int res_nsend __P((res_state, const u_char *, int, u_char *, int));
+int res_nsendsigned __P((res_state, const u_char *, int,
+ ns_tsig_key *, u_char *, int));
+int res_findzonecut __P((res_state, const char *, ns_class, int,
+ char *, size_t, struct in_addr *, int));
+int res_findzonecut2 __P((res_state, const char *, ns_class, int,
+ char *, size_t,
+ union res_sockaddr_union *, int));
+void res_nclose __P((res_state));
+int res_nopt __P((res_state, int, u_char *, int, int));
+void res_send_setqhook __P((res_send_qhook));
+void res_send_setrhook __P((res_send_rhook));
+int __res_vinit __P((res_state, int));
+void res_destroyservicelist __P((void));
+const char * res_servicename __P((u_int16_t, const char *));
+const char * res_protocolname __P((int));
+void res_destroyprotolist __P((void));
+void res_buildprotolist __P((void));
+const char * res_get_nibblesuffix __P((res_state));
+const char * res_get_nibblesuffix2 __P((res_state));
+void res_ndestroy __P((res_state));
+u_int16_t res_nametoclass __P((const char *, int *));
+u_int16_t res_nametotype __P((const char *, int *));
+void res_setservers __P((res_state,
+ const union res_sockaddr_union *, int));
+int res_getservers __P((res_state,
+ union res_sockaddr_union *, int));
__END_DECLS
#endif /* !_RESOLV_H_ */
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