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30a4f2a8 | 1 | /* |
528b2c61 | 2 | * $Id: getfullhostname.c,v 1.20 2003/01/23 00:37:01 robertc Exp $ |
30a4f2a8 | 3 | * |
4 | * DEBUG: | |
5 | * AUTHOR: Harvest Derived | |
6 | * | |
2b6662ba | 7 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
e25c139f | 8 | * ---------------------------------------------------------- |
30a4f2a8 | 9 | * |
2b6662ba | 10 | * Squid is the result of efforts by numerous individuals from |
11 | * the Internet community; see the CONTRIBUTORS file for full | |
12 | * details. Many organizations have provided support for Squid's | |
13 | * development; see the SPONSORS file for full details. Squid is | |
14 | * Copyrighted (C) 2001 by the Regents of the University of | |
15 | * California; see the COPYRIGHT file for full details. Squid | |
16 | * incorporates software developed and/or copyrighted by other | |
17 | * sources; see the CREDITS file for full details. | |
30a4f2a8 | 18 | * |
19 | * This program is free software; you can redistribute it and/or modify | |
20 | * it under the terms of the GNU General Public License as published by | |
21 | * the Free Software Foundation; either version 2 of the License, or | |
22 | * (at your option) any later version. | |
23 | * | |
24 | * This program is distributed in the hope that it will be useful, | |
25 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
27 | * GNU General Public License for more details. | |
28 | * | |
29 | * You should have received a copy of the GNU General Public License | |
30 | * along with this program; if not, write to the Free Software | |
cbdec147 | 31 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
e25c139f | 32 | * |
30a4f2a8 | 33 | */ |
e1f7507e | 34 | #include "getfullhostname.h" |
0d94e9fe | 35 | |
e1f7507e | 36 | #if 0 /* we SHOULD NOT need ALL these here. */ |
88738790 | 37 | #if HAVE_LIBC_H |
38 | #include <libc.h> | |
39 | #endif | |
30a4f2a8 | 40 | #if HAVE_STDIO_H |
090089c4 | 41 | #include <stdio.h> |
30a4f2a8 | 42 | #endif |
43 | #if HAVE_STDLIB_H | |
090089c4 | 44 | #include <stdlib.h> |
30a4f2a8 | 45 | #endif |
46 | #if HAVE_STRING_H | |
090089c4 | 47 | #include <string.h> |
30a4f2a8 | 48 | #endif |
49 | #if HAVE_SYS_PARAM_H | |
090089c4 | 50 | #include <sys/param.h> |
30a4f2a8 | 51 | #endif |
52 | #if HAVE_SYS_TYPES_H | |
090089c4 | 53 | #include <sys/types.h> |
30a4f2a8 | 54 | #endif |
55 | #if HAVE_SYS_SOCKET_H | |
090089c4 | 56 | #include <sys/socket.h> |
30a4f2a8 | 57 | #endif |
58 | #if HAVE_NETINET_IN_H | |
090089c4 | 59 | #include <netinet/in.h> |
30a4f2a8 | 60 | #endif |
61 | #if HAVE_ARPA_INET_H | |
090089c4 | 62 | #include <arpa/inet.h> |
30a4f2a8 | 63 | #endif |
e1f7507e AJ |
64 | |
65 | #endif // 0 | |
66 | ||
67 | ||
68 | #if HAVE_UNISTD_H | |
69 | /* for gethostname() function */ | |
70 | #include <unistd.h> | |
71 | #endif | |
30a4f2a8 | 72 | #if HAVE_NETDB_H && !defined(_SQUID_NETDB_H_) /* protect on NEXTSTEP */ |
73 | #define _SQUID_NETDB_H_ | |
e1f7507e | 74 | /* for gethostbyname() */ |
090089c4 | 75 | #include <netdb.h> |
30a4f2a8 | 76 | #endif |
090089c4 | 77 | |
e1f7507e AJ |
78 | /* for RFC 2181 constants */ |
79 | #include "rfc2181.h" | |
80 | ||
81 | /* for xstrncpy() - may need breakign out of there. */ | |
30a4f2a8 | 82 | #include "util.h" |
090089c4 | 83 | |
e1f7507e AJ |
84 | /** |
85 | \retval NULL An error occured. | |
86 | \retval * The fully qualified name (FQDN) of the current host. | |
87 | * Pointer is only valid until the next call to the gethost*() functions. | |
88 | * | |
89 | \todo Make this a squid String result so the duration limit is flexible. | |
090089c4 | 90 | */ |
0ee4272b | 91 | const char * |
0673c0ba | 92 | getfullhostname(void) |
090089c4 | 93 | { |
0ee4272b | 94 | const struct hostent *hp = NULL; |
e1f7507e | 95 | static char buf[RFC2181_MAXHOSTNAMELEN + 1]; |
090089c4 | 96 | |
e1f7507e | 97 | if (gethostname(buf, RFC2181_MAXHOSTNAMELEN) < 0) |
3b678c10 | 98 | return NULL; |
e1f7507e | 99 | /** \todo convert this to a xgetaddrinfo() call */ |
3b678c10 | 100 | if ((hp = gethostbyname(buf)) != NULL) |
e1f7507e | 101 | xstrncpy(buf, hp->h_name, RFC2181_MAXHOSTNAMELEN); |
3b678c10 | 102 | return buf; |
090089c4 | 103 | } |