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1 | /*\r | |
2 | * ++Copyright++ 1985, 1988, 1993\r | |
3 | * -\r | |
4 | * Copyright (c) 1985, 1988, 1993\r | |
5 | * The Regents of the University of California. All rights reserved.\r | |
6 | *\r | |
7 | * Portions copyright (c) 1999, 2000\r | |
8 | * Intel Corporation.\r | |
9 | * All rights reserved.\r | |
10 | * \r | |
11 | * Redistribution and use in source and binary forms, with or without\r | |
12 | * modification, are permitted provided that the following conditions\r | |
13 | * are met:\r | |
14 | * \r | |
15 | * 1. Redistributions of source code must retain the above copyright\r | |
16 | * notice, this list of conditions and the following disclaimer.\r | |
17 | * \r | |
18 | * 2. Redistributions in binary form must reproduce the above copyright\r | |
19 | * notice, this list of conditions and the following disclaimer in the\r | |
20 | * documentation and/or other materials provided with the distribution.\r | |
21 | * \r | |
22 | * 3. All advertising materials mentioning features or use of this software\r | |
23 | * must display the following acknowledgement:\r | |
24 | * \r | |
25 | * This product includes software developed by the University of\r | |
26 | * California, Berkeley, Intel Corporation, and its contributors.\r | |
27 | * \r | |
28 | * 4. Neither the name of University, Intel Corporation, or their respective\r | |
29 | * contributors may be used to endorse or promote products derived from\r | |
30 | * this software without specific prior written permission.\r | |
31 | * \r | |
32 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS, INTEL CORPORATION AND\r | |
33 | * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,\r | |
34 | * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS\r | |
35 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS,\r | |
36 | * INTEL CORPORATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,\r | |
37 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\r | |
38 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\r | |
39 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\r | |
40 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\r | |
41 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF\r | |
42 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r | |
43 | * -\r | |
44 | * Portions Copyright (c) 1993 by Digital Equipment Corporation.\r | |
45 | * \r | |
46 | * Permission to use, copy, modify, and distribute this software for any\r | |
47 | * purpose with or without fee is hereby granted, provided that the above\r | |
48 | * copyright notice and this permission notice appear in all copies, and that\r | |
49 | * the name of Digital Equipment Corporation not be used in advertising or\r | |
50 | * publicity pertaining to distribution of the document or software without\r | |
51 | * specific, written prior permission.\r | |
52 | * \r | |
53 | * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL\r | |
54 | * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES\r | |
55 | * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT\r | |
56 | * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL\r | |
57 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR\r | |
58 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS\r | |
59 | * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS\r | |
60 | * SOFTWARE.\r | |
61 | * -\r | |
62 | * --Copyright--\r | |
63 | */\r | |
64 | \r | |
65 | #if defined(LIBC_SCCS) && !defined(lint)\r | |
66 | static char sccsid[] = "@(#)gethostnamadr.c 8.1 (Berkeley) 6/4/93";\r | |
67 | static char rcsid[] = "$Id: map_v4v6.c,v 1.1.1.1 2003/11/19 01:51:31 kyu3 Exp $";\r | |
68 | #endif /* LIBC_SCCS and not lint */\r | |
69 | \r | |
70 | #include <sys/types.h>\r | |
71 | #include <sys/param.h>\r | |
72 | #include <sys/socket.h>\r | |
73 | #include <netinet/in.h>\r | |
74 | #include <arpa/inet.h>\r | |
75 | #include <arpa/nameser.h>\r | |
76 | \r | |
77 | #include <stdio.h>\r | |
78 | #include <string.h>\r | |
79 | #include <netdb.h>\r | |
80 | #include <resolv.h>\r | |
81 | #include <ctype.h>\r | |
82 | #include <errno.h>\r | |
83 | #ifdef _ORG_FREEBSD_\r | |
84 | #include <syslog.h>\r | |
85 | #endif\r | |
86 | #include "Socklib_internals.h"\r | |
87 | \r | |
88 | typedef union {\r | |
89 | int32_t al;\r | |
90 | char ac;\r | |
91 | } align;\r | |
92 | \r | |
93 | void\r | |
94 | _map_v4v6_address(const char *src, char *dst)\r | |
95 | {\r | |
96 | u_char *p = (u_char *)dst;\r | |
97 | char tmp[INADDRSZ];\r | |
98 | int i;\r | |
99 | \r | |
100 | /* Stash a temporary copy so our caller can update in place. */\r | |
101 | bcopy(src, tmp, INADDRSZ);\r | |
102 | /* Mark this ipv6 addr as a mapped ipv4. */\r | |
103 | for (i = 0; i < 10; i++)\r | |
104 | *p++ = 0x00;\r | |
105 | *p++ = 0xff;\r | |
106 | *p++ = 0xff;\r | |
107 | /* Retrieve the saved copy and we're done. */\r | |
108 | bcopy(tmp, (void*)p, INADDRSZ);\r | |
109 | }\r | |
110 | \r | |
111 | void\r | |
112 | _map_v4v6_hostent(struct hostent *hp, char **bpp, int *lenp)\r | |
113 | {\r | |
114 | char **ap;\r | |
115 | \r | |
116 | if (hp->h_addrtype != AF_INET || hp->h_length != INADDRSZ)\r | |
117 | return;\r | |
118 | hp->h_addrtype = AF_INET6;\r | |
119 | hp->h_length = IN6ADDRSZ;\r | |
120 | for (ap = hp->h_addr_list; *ap; ap++) {\r | |
121 | int i = (int)(sizeof(align) - ((size_t)*bpp % sizeof(align)));\r | |
122 | \r | |
123 | if (*lenp < (i + IN6ADDRSZ)) {\r | |
124 | /* Out of memory. Truncate address list here. XXX */\r | |
125 | *ap = NULL;\r | |
126 | return;\r | |
127 | }\r | |
128 | *bpp += i;\r | |
129 | *lenp -= i;\r | |
130 | _map_v4v6_address(*ap, *bpp);\r | |
131 | *ap = *bpp;\r | |
132 | *bpp += IN6ADDRSZ;\r | |
133 | *lenp -= IN6ADDRSZ;\r | |
134 | }\r | |
135 | }\r |