tty.c - sbase - suckless unix tools | |
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tty.c (409B) | |
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1 /* See LICENSE file for copyright and license details. */ | |
2 #include <stdio.h> | |
3 #include <unistd.h> | |
4 | |
5 #include "util.h" | |
6 | |
7 static void | |
8 usage(void) | |
9 { | |
10 enprintf(2, "usage: %s\n", argv0); | |
11 } | |
12 | |
13 int | |
14 main(int argc, char *argv[]) | |
15 { | |
16 char *tty; | |
17 | |
18 ARGBEGIN { | |
19 default: | |
20 usage(); | |
21 } ARGEND | |
22 | |
23 if (argc) | |
24 usage(); | |
25 | |
26 tty = ttyname(STDIN_FILENO); | |
27 puts(tty ? tty : "not a tty"); | |
28 | |
29 enfshut(2, stdout, "<stdout>"); | |
30 return !tty; | |
31 } |