Commit | Line | Data |
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bb6ae3fb | 1 | /* |
2 | * This file is part of DisOrder | |
3 | * Copyright (C) 2007 Richard Kettlewell | |
4 | * | |
e7eb3a27 | 5 | * This program is free software: you can redistribute it and/or modify |
bb6ae3fb | 6 | * it under the terms of the GNU General Public License as published by |
e7eb3a27 | 7 | * the Free Software Foundation, either version 3 of the License, or |
bb6ae3fb | 8 | * (at your option) any later version. |
e7eb3a27 RK |
9 | * |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
bb6ae3fb | 15 | * You should have received a copy of the GNU General Public License |
e7eb3a27 | 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
bb6ae3fb | 17 | */ |
132a5a4a RK |
18 | /** @file lib/hostname.c |
19 | * @brief Get the local hostname | |
20 | */ | |
bb6ae3fb | 21 | |
05b75f8d | 22 | #include "common.h" |
bb6ae3fb | 23 | |
24 | #include <sys/utsname.h> | |
25 | #include <errno.h> | |
26 | #include <netdb.h> | |
27 | ||
28 | #include "mem.h" | |
29 | #include "hostname.h" | |
30 | #include "log.h" | |
31 | ||
32 | static const char *hostname; | |
33 | ||
34 | /** @brief Return the local hostname | |
35 | * @return Hostname | |
36 | */ | |
37 | const char *local_hostname(void) { | |
38 | if(!hostname) { | |
39 | struct utsname u; | |
40 | struct hostent *he; | |
41 | ||
42 | if(uname(&u) < 0) | |
43 | fatal(errno, "error calling uname"); | |
44 | if(!(he = gethostbyname(u.nodename))) | |
45 | fatal(0, "cannot resolve '%s'", u.nodename); | |
46 | hostname = xstrdup(he->h_name); | |
47 | } | |
48 | return hostname; | |
49 | } | |
50 | ||
51 | ||
52 | /* | |
53 | Local Variables: | |
54 | c-basic-offset:2 | |
55 | comment-column:40 | |
56 | fill-column:79 | |
57 | indent-tabs-mode:nil | |
58 | End: | |
59 | */ |