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-rw-r--r--openbsd-compat/Makefile.in4
-rw-r--r--openbsd-compat/inet_ntop.c209
-rw-r--r--openbsd-compat/inet_ntop.h13
-rw-r--r--openbsd-compat/openbsd-compat.h3
4 files changed, 226 insertions, 3 deletions
diff --git a/openbsd-compat/Makefile.in b/openbsd-compat/Makefile.in
index 45ed3740a..5b0432730 100644
--- a/openbsd-compat/Makefile.in
+++ b/openbsd-compat/Makefile.in
@@ -1,4 +1,4 @@
1# $Id: Makefile.in,v 1.9 2001/03/18 23:09:28 djm Exp $ 1# $Id: Makefile.in,v 1.10 2001/04/12 21:35:53 mouring Exp $
2 2
3sysconfdir=@sysconfdir@ 3sysconfdir=@sysconfdir@
4piddir=@piddir@ 4piddir=@piddir@
@@ -16,7 +16,7 @@ RANLIB=@RANLIB@
16INSTALL=@INSTALL@ 16INSTALL=@INSTALL@
17LDFLAGS=-L. @LDFLAGS@ 17LDFLAGS=-L. @LDFLAGS@
18 18
19OPENBSD=base64.o bindresvport.o daemon.o getcwd.o getgrouplist.o getusershell.o glob.o inet_aton.o inet_ntoa.o mktemp.o realpath.o rresvport.o setenv.o setproctitle.o sigact.o strlcat.o strlcpy.o strmode.o strsep.o strtok.o vis.o 19OPENBSD=base64.o bindresvport.o daemon.o getcwd.o getgrouplist.o getusershell.o glob.o inet_aton.o inet_ntoa.o inet_ntop.o mktemp.o realpath.o rresvport.o setenv.o setproctitle.o sigact.o strlcat.o strlcpy.o strmode.o strsep.o strtok.o vis.o
20 20
21COMPAT=bsd-arc4random.o bsd-cygwin_util.o bsd-misc.o bsd-nextstep.o bsd-snprintf.o bsd-waitpid.o fake-getaddrinfo.o fake-getnameinfo.o 21COMPAT=bsd-arc4random.o bsd-cygwin_util.o bsd-misc.o bsd-nextstep.o bsd-snprintf.o bsd-waitpid.o fake-getaddrinfo.o fake-getnameinfo.o
22 22
diff --git a/openbsd-compat/inet_ntop.c b/openbsd-compat/inet_ntop.c
new file mode 100644
index 000000000..1c2357961
--- /dev/null
+++ b/openbsd-compat/inet_ntop.c
@@ -0,0 +1,209 @@
1/* $OpenBSD: inet_ntop.c,v 1.1 1997/03/13 19:07:32 downsj Exp $ */
2
3/* Copyright (c) 1996 by Internet Software Consortium.
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
10 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
11 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
12 * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
13 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
14 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
15 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
16 * SOFTWARE.
17 */
18
19#include "config.h"
20
21#ifndef HAVE_INET_NTOP
22
23#if defined(LIBC_SCCS) && !defined(lint)
24#if 0
25static char rcsid[] = "$From: inet_ntop.c,v 8.7 1996/08/05 08:41:18 vixie Exp $";
26#else
27static char rcsid[] = "$OpenBSD: inet_ntop.c,v 1.1 1997/03/13 19:07:32 downsj Exp $";
28#endif
29#endif /* LIBC_SCCS and not lint */
30
31#include <sys/param.h>
32#include <sys/types.h>
33#include <sys/socket.h>
34#include "openbsd-compat/fake-socket.h"
35#include <netinet/in.h>
36#include <arpa/inet.h>
37#include <arpa/nameser.h>
38#include <string.h>
39#include <errno.h>
40#include <stdio.h>
41
42#ifndef IN6ADDRSZ
43#define IN6ADDRSZ 16 /* IPv6 T_AAAA */
44#endif
45
46#ifndef INT16SZ
47#define INT16SZ 2 /* for systems without 16-bit ints */
48#endif
49
50/*
51 * WARNING: Don't even consider trying to compile this on a system where
52 * sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX.
53 */
54
55static const char *inet_ntop4 __P((const u_char *src, char *dst, size_t size));
56static const char *inet_ntop6 __P((const u_char *src, char *dst, size_t size));
57
58/* char *
59 * inet_ntop(af, src, dst, size)
60 * convert a network format address to presentation format.
61 * return:
62 * pointer to presentation format address (`dst'), or NULL (see errno).
63 * author:
64 * Paul Vixie, 1996.
65 */
66const char *
67inet_ntop(af, src, dst, size)
68 int af;
69 const void *src;
70 char *dst;
71 size_t size;
72{
73 switch (af) {
74 case AF_INET:
75 return (inet_ntop4(src, dst, size));
76 case AF_INET6:
77 return (inet_ntop6(src, dst, size));
78 default:
79 errno = EAFNOSUPPORT;
80 return (NULL);
81 }
82 /* NOTREACHED */
83}
84
85/* const char *
86 * inet_ntop4(src, dst, size)
87 * format an IPv4 address, more or less like inet_ntoa()
88 * return:
89 * `dst' (as a const)
90 * notes:
91 * (1) uses no statics
92 * (2) takes a u_char* not an in_addr as input
93 * author:
94 * Paul Vixie, 1996.
95 */
96static const char *
97inet_ntop4(src, dst, size)
98 const u_char *src;
99 char *dst;
100 size_t size;
101{
102 static const char fmt[] = "%u.%u.%u.%u";
103 char tmp[sizeof "255.255.255.255"];
104
105 if (sprintf(tmp, fmt, src[0], src[1], src[2], src[3]) > size) {
106 errno = ENOSPC;
107 return (NULL);
108 }
109 strcpy(dst, tmp);
110 return (dst);
111}
112
113/* const char *
114 * inet_ntop6(src, dst, size)
115 * convert IPv6 binary address into presentation (printable) format
116 * author:
117 * Paul Vixie, 1996.
118 */
119static const char *
120inet_ntop6(src, dst, size)
121 const u_char *src;
122 char *dst;
123 size_t size;
124{
125 /*
126 * Note that int32_t and int16_t need only be "at least" large enough
127 * to contain a value of the specified size. On some systems, like
128 * Crays, there is no such thing as an integer variable with 16 bits.
129 * Keep this in mind if you think this function should have been coded
130 * to use pointer overlays. All the world's not a VAX.
131 */
132 char tmp[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"], *tp;
133 struct { int base, len; } best, cur;
134 u_int words[IN6ADDRSZ / INT16SZ];
135 int i;
136
137 /*
138 * Preprocess:
139 * Copy the input (bytewise) array into a wordwise array.
140 * Find the longest run of 0x00's in src[] for :: shorthanding.
141 */
142 memset(words, '\0', sizeof words);
143 for (i = 0; i < IN6ADDRSZ; i++)
144 words[i / 2] |= (src[i] << ((1 - (i % 2)) << 3));
145 best.base = -1;
146 cur.base = -1;
147 for (i = 0; i < (IN6ADDRSZ / INT16SZ); i++) {
148 if (words[i] == 0) {
149 if (cur.base == -1)
150 cur.base = i, cur.len = 1;
151 else
152 cur.len++;
153 } else {
154 if (cur.base != -1) {
155 if (best.base == -1 || cur.len > best.len)
156 best = cur;
157 cur.base = -1;
158 }
159 }
160 }
161 if (cur.base != -1) {
162 if (best.base == -1 || cur.len > best.len)
163 best = cur;
164 }
165 if (best.base != -1 && best.len < 2)
166 best.base = -1;
167
168 /*
169 * Format the result.
170 */
171 tp = tmp;
172 for (i = 0; i < (IN6ADDRSZ / INT16SZ); i++) {
173 /* Are we inside the best run of 0x00's? */
174 if (best.base != -1 && i >= best.base &&
175 i < (best.base + best.len)) {
176 if (i == best.base)
177 *tp++ = ':';
178 continue;
179 }
180 /* Are we following an initial run of 0x00s or any real hex? */
181 if (i != 0)
182 *tp++ = ':';
183 /* Is this address an encapsulated IPv4? */
184 if (i == 6 && best.base == 0 &&
185 (best.len == 6 || (best.len == 5 && words[5] == 0xffff))) {
186 if (!inet_ntop4(src+12, tp, sizeof tmp - (tp - tmp)))
187 return (NULL);
188 tp += strlen(tp);
189 break;
190 }
191 tp += sprintf(tp, "%x", words[i]);
192 }
193 /* Was it a trailing run of 0x00's? */
194 if (best.base != -1 && (best.base + best.len) == (IN6ADDRSZ / INT16SZ))
195 *tp++ = ':';
196 *tp++ = '\0';
197
198 /*
199 * Check for overflow, copy, and we're done.
200 */
201 if ((size_t)(tp - tmp) > size) {
202 errno = ENOSPC;
203 return (NULL);
204 }
205 strcpy(dst, tmp);
206 return (dst);
207}
208
209#endif /* !HAVE_INET_NTOP */
diff --git a/openbsd-compat/inet_ntop.h b/openbsd-compat/inet_ntop.h
new file mode 100644
index 000000000..11f443ff3
--- /dev/null
+++ b/openbsd-compat/inet_ntop.h
@@ -0,0 +1,13 @@
1/* $Id: inet_ntop.h,v 1.1 2001/04/12 21:35:53 mouring Exp $ */
2
3#ifndef _BSD_RRESVPORT_H
4#define _BSD_RRESVPORT_H
5
6#include "config.h"
7
8#ifndef HAVE_INET_NTOP
9const char *
10inet_ntop(int af, const void *src, char *dst, size_t size);
11#endif /* !HAVE_INET_NTOP */
12
13#endif /* _BSD_RRESVPORT_H */
diff --git a/openbsd-compat/openbsd-compat.h b/openbsd-compat/openbsd-compat.h
index 5d236731b..876e8f6ac 100644
--- a/openbsd-compat/openbsd-compat.h
+++ b/openbsd-compat/openbsd-compat.h
@@ -1,4 +1,4 @@
1/* $Id: openbsd-compat.h,v 1.5 2001/03/18 23:09:28 djm Exp $ */ 1/* $Id: openbsd-compat.h,v 1.6 2001/04/12 21:35:54 mouring Exp $ */
2 2
3#ifndef _OPENBSD_H 3#ifndef _OPENBSD_H
4#define _OPENBSD_H 4#define _OPENBSD_H
@@ -19,6 +19,7 @@
19#include "sigact.h" 19#include "sigact.h"
20#include "inet_aton.h" 20#include "inet_aton.h"
21#include "inet_ntoa.h" 21#include "inet_ntoa.h"
22#include "inet_ntop.h"
22#include "strsep.h" 23#include "strsep.h"
23#include "strtok.h" 24#include "strtok.h"
24#include "vis.h" 25#include "vis.h"
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 02:36:08 +0000