1/*
2 * ++Copyright++ 1985, 1988, 1993
3 * -
4 * Copyright (c) 1985, 1988, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 * -
35 * Portions Copyright (c) 1993 by Digital Equipment Corporation.
36 *
37 * Permission to use, copy, modify, and distribute this software for any
38 * purpose with or without fee is hereby granted, provided that the above
39 * copyright notice and this permission notice appear in all copies, and that
40 * the name of Digital Equipment Corporation not be used in advertising or
41 * publicity pertaining to distribution of the document or software without
42 * specific, written prior permission.
43 *
44 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
45 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
46 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
47 * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
48 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
49 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
50 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
51 * SOFTWARE.
52 * -
53 * --Copyright--
54 */
55
56#if defined(LIBC_SCCS) && !defined(lint)
57static char sccsid[] = "@(#)gethostnamadr.c 8.1 (Berkeley) 6/4/93";
| 1/*
2 * ++Copyright++ 1985, 1988, 1993
3 * -
4 * Copyright (c) 1985, 1988, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 * -
35 * Portions Copyright (c) 1993 by Digital Equipment Corporation.
36 *
37 * Permission to use, copy, modify, and distribute this software for any
38 * purpose with or without fee is hereby granted, provided that the above
39 * copyright notice and this permission notice appear in all copies, and that
40 * the name of Digital Equipment Corporation not be used in advertising or
41 * publicity pertaining to distribution of the document or software without
42 * specific, written prior permission.
43 *
44 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
45 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
46 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
47 * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
48 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
49 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
50 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
51 * SOFTWARE.
52 * -
53 * --Copyright--
54 */
55
56#if defined(LIBC_SCCS) && !defined(lint)
57static char sccsid[] = "@(#)gethostnamadr.c 8.1 (Berkeley) 6/4/93";
|
60
61#include <sys/types.h>
62#include <sys/param.h>
63#include <sys/socket.h>
64#include <netinet/in.h>
65#include <arpa/inet.h>
66#include <arpa/nameser.h>
67
68#include <stdio.h>
69#include <string.h>
70#include <netdb.h>
71#include <resolv.h>
72#include <ctype.h>
73#include <syslog.h>
74
75typedef union {
76 int32_t al;
77 char ac;
78} align;
79
80void
81_map_v4v6_address(src, dst)
82 const char *src;
83 char *dst;
84{
85 u_char *p = (u_char *)dst;
86 char tmp[INADDRSZ];
87 int i;
88
89 /* Stash a temporary copy so our caller can update in place. */
90 bcopy(src, tmp, INADDRSZ);
91 /* Mark this ipv6 addr as a mapped ipv4. */
92 for (i = 0; i < 10; i++)
93 *p++ = 0x00;
94 *p++ = 0xff;
95 *p++ = 0xff;
96 /* Retrieve the saved copy and we're done. */
97 bcopy(tmp, (void*)p, INADDRSZ);
98}
99
100void
101_map_v4v6_hostent(hp, bpp, lenp)
102 struct hostent *hp;
103 char **bpp;
104 int *lenp;
105{
106 char **ap;
107
108 if (hp->h_addrtype != AF_INET || hp->h_length != INADDRSZ)
109 return;
110 hp->h_addrtype = AF_INET6;
111 hp->h_length = IN6ADDRSZ;
112 for (ap = hp->h_addr_list; *ap; ap++) {
113 int i = sizeof(align) - ((u_long)*bpp % sizeof(align));
114
115 if (*lenp < (i + IN6ADDRSZ)) {
116 /* Out of memory. Truncate address list here. XXX */
117 *ap = NULL;
118 return;
119 }
120 *bpp += i;
121 *lenp -= i;
122 _map_v4v6_address(*ap, *bpp);
123 *ap = *bpp;
124 *bpp += IN6ADDRSZ;
125 *lenp -= IN6ADDRSZ;
126 }
127}
| 61
62#include <sys/types.h>
63#include <sys/param.h>
64#include <sys/socket.h>
65#include <netinet/in.h>
66#include <arpa/inet.h>
67#include <arpa/nameser.h>
68
69#include <stdio.h>
70#include <string.h>
71#include <netdb.h>
72#include <resolv.h>
73#include <ctype.h>
74#include <syslog.h>
75
76typedef union {
77 int32_t al;
78 char ac;
79} align;
80
81void
82_map_v4v6_address(src, dst)
83 const char *src;
84 char *dst;
85{
86 u_char *p = (u_char *)dst;
87 char tmp[INADDRSZ];
88 int i;
89
90 /* Stash a temporary copy so our caller can update in place. */
91 bcopy(src, tmp, INADDRSZ);
92 /* Mark this ipv6 addr as a mapped ipv4. */
93 for (i = 0; i < 10; i++)
94 *p++ = 0x00;
95 *p++ = 0xff;
96 *p++ = 0xff;
97 /* Retrieve the saved copy and we're done. */
98 bcopy(tmp, (void*)p, INADDRSZ);
99}
100
101void
102_map_v4v6_hostent(hp, bpp, lenp)
103 struct hostent *hp;
104 char **bpp;
105 int *lenp;
106{
107 char **ap;
108
109 if (hp->h_addrtype != AF_INET || hp->h_length != INADDRSZ)
110 return;
111 hp->h_addrtype = AF_INET6;
112 hp->h_length = IN6ADDRSZ;
113 for (ap = hp->h_addr_list; *ap; ap++) {
114 int i = sizeof(align) - ((u_long)*bpp % sizeof(align));
115
116 if (*lenp < (i + IN6ADDRSZ)) {
117 /* Out of memory. Truncate address list here. XXX */
118 *ap = NULL;
119 return;
120 }
121 *bpp += i;
122 *lenp -= i;
123 _map_v4v6_address(*ap, *bpp);
124 *ap = *bpp;
125 *bpp += IN6ADDRSZ;
126 *lenp -= IN6ADDRSZ;
127 }
128}
|