hostname.c - sbase - suckless unix tools | |
git clone git://git.suckless.org/sbase | |
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hostname.c (579B) | |
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1 /* See LICENSE file for copyright and license details. */ | |
2 #include <stdio.h> | |
3 #include <string.h> | |
4 #include <unistd.h> | |
5 | |
6 #include "util.h" | |
7 | |
8 static void | |
9 usage(void) | |
10 { | |
11 eprintf("usage: %s [name]\n", argv0); | |
12 } | |
13 | |
14 int | |
15 main(int argc, char *argv[]) | |
16 { | |
17 char host[HOST_NAME_MAX + 1]; | |
18 | |
19 ARGBEGIN { | |
20 default: | |
21 usage(); | |
22 } ARGEND | |
23 | |
24 if (!argc) { | |
25 if (gethostname(host, sizeof(host)) < 0) | |
26 eprintf("gethostname:"); | |
27 puts(host); | |
28 } else if (argc == 1) { | |
29 if (sethostname(argv[0], strlen(argv[0])) < 0) | |
30 eprintf("sethostname:"); | |
31 } else { | |
32 usage(); | |
33 } | |
34 | |
35 return fshut(stdout, "<stdout>"); | |
36 } |