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1 | /* |
2 | * This file is part of DisOrder |
3 | * Copyright (C) 2007 Richard Kettlewell |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by |
7 | * the Free Software Foundation; either version 2 of the License, or |
8 | * (at your option) any later version. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, but |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | * General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
18 | * USA |
19 | */ |
20 | |
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21 | #include "common.h" |
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22 | |
23 | #include <sys/utsname.h> |
24 | #include <errno.h> |
25 | #include <netdb.h> |
26 | |
27 | #include "mem.h" |
28 | #include "hostname.h" |
29 | #include "log.h" |
30 | |
31 | static const char *hostname; |
32 | |
33 | /** @brief Return the local hostname |
34 | * @return Hostname |
35 | */ |
36 | const char *local_hostname(void) { |
37 | if(!hostname) { |
38 | struct utsname u; |
39 | struct hostent *he; |
40 | |
41 | if(uname(&u) < 0) |
42 | fatal(errno, "error calling uname"); |
43 | if(!(he = gethostbyname(u.nodename))) |
44 | fatal(0, "cannot resolve '%s'", u.nodename); |
45 | hostname = xstrdup(he->h_name); |
46 | } |
47 | return hostname; |
48 | } |
49 | |
50 | |
51 | /* |
52 | Local Variables: |
53 | c-basic-offset:2 |
54 | comment-column:40 |
55 | fill-column:79 |
56 | indent-tabs-mode:nil |
57 | End: |
58 | */ |