summaryrefslogtreecommitdiffstats
path: root/openbsd-compat/inet_ntop.c
diff options
context:
space:
mode:
authorBen Lindstrom <mouring@eviladmin.org>2001-06-28 23:21:28 +0000
committerBen Lindstrom <mouring@eviladmin.org>2001-06-28 23:21:28 +0000
commitf96d887d75674e57ba823f190d73a5ddf50d126a (patch)
tree30630b95a91bcbeed22e496b4a76273aa18c4447 /openbsd-compat/inet_ntop.c
parentacf59e68cbf38be8baa151c22edcfaf7724d0928 (diff)
- (bal) Removed strtok_r and inet_ntop since they are no longer used.
Diffstat (limited to 'openbsd-compat/inet_ntop.c')
-rw-r--r--openbsd-compat/inet_ntop.c211
1 files changed, 0 insertions, 211 deletions
diff --git a/openbsd-compat/inet_ntop.c b/openbsd-compat/inet_ntop.c
deleted file mode 100644
index bf3d97ad..00000000
--- a/openbsd-compat/inet_ntop.c
+++ /dev/null
@@ -1,211 +0,0 @@
-/* $OpenBSD: inet_ntop.c,v 1.1 1997/03/13 19:07:32 downsj Exp $ */
-
-/* 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.
- */
-
-#include "config.h"
-
-#ifndef HAVE_INET_NTOP
-
-#if defined(LIBC_SCCS) && !defined(lint)
-#if 0
-static char rcsid[] = "$From: inet_ntop.c,v 8.7 1996/08/05 08:41:18 vixie Exp $";
-#else
-static char rcsid[] = "$OpenBSD: inet_ntop.c,v 1.1 1997/03/13 19:07:32 downsj Exp $";
-#endif
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/param.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include "openbsd-compat/fake-socket.h"
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#ifndef HAVE_CYGWIN
-#include <arpa/nameser.h>
-#endif
-#include <string.h>
-#include <errno.h>
-#include <stdio.h>
-
-#ifndef IN6ADDRSZ
-#define IN6ADDRSZ 16 /* IPv6 T_AAAA */
-#endif
-
-#ifndef INT16SZ
-#define INT16SZ 2 /* for systems without 16-bit ints */
-#endif
-
-/*
- * 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[IN6ADDRSZ / 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 < IN6ADDRSZ; i++)
- words[i / 2] |= (src[i] << ((1 - (i % 2)) << 3));
- best.base = -1;
- cur.base = -1;
- for (i = 0; i < (IN6ADDRSZ / 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 < (IN6ADDRSZ / 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) == (IN6ADDRSZ / 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);
-}
-
-#endif /* !HAVE_INET_NTOP */