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author | peter <peter@FreeBSD.org> | 1996-08-29 20:08:19 +0000 |
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committer | peter <peter@FreeBSD.org> | 1996-08-29 20:08:19 +0000 |
commit | 1f1fd8028fddf809ce8077697ffa07cb30a1e5d2 (patch) | |
tree | 2cf4d77f1b2f64006b349d61712604ce2acf338e /lib/libc/net/nsap_addr.c | |
parent | d971f8ba30d6c175abff84fb92fc284744fa18ac (diff) | |
download | FreeBSD-src-1f1fd8028fddf809ce8077697ffa07cb30a1e5d2.zip FreeBSD-src-1f1fd8028fddf809ce8077697ffa07cb30a1e5d2.tar.gz |
Merge in bind-4.9.4-P1 resolver...
Diffstat (limited to 'lib/libc/net/nsap_addr.c')
-rw-r--r-- | lib/libc/net/nsap_addr.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/lib/libc/net/nsap_addr.c b/lib/libc/net/nsap_addr.c new file mode 100644 index 0000000..fcbbf1e --- /dev/null +++ b/lib/libc/net/nsap_addr.c @@ -0,0 +1,103 @@ +/* + * 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[] = "$Id: nsap_addr.c,v 8.3 1996/08/05 08:31:35 vixie Exp $"; +#endif /* LIBC_SCCS and not lint */ + +#include <sys/types.h> +#include <sys/param.h> +#include <sys/socket.h> +#include <netinet/in.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; +{ + register u_char c, nib; + u_int len = 0; + + while ((c = *ascii++) != '\0' && len < maxlen) { + if (c == '.' || c == '+' || c == '/') + continue; + if (!isascii(c)) + return (0); + if (islower(c)) + c = toupper(c); + if (isxdigit(c)) { + nib = xtob(c); + if (c = *ascii++) { + 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); +} |