1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
/* vi: set sw=4 ts=4: */
/*
* Replacement for "stty size", which is awkward for shell script use.
* - Allows to request width, height, or both, in any order.
* - Does not complain on error, but returns width 80, height 24.
* - Size: less than 200 bytes
*
* Copyright (C) 2007 by Denys Vlasenko <vda.linux@googlemail.com>
*
* Licensed under the GPL v2, see the file LICENSE in this tarball.
*/
#include "libbb.h"
int ttysize_main(int argc, char **argv);
int ttysize_main(int argc, char **argv)
{
unsigned w,h;
struct winsize wsz;
w = 80;
h = 24;
if (!ioctl(0, TIOCGWINSZ, &wsz)) {
w = wsz.ws_col;
h = wsz.ws_row;
}
if (argc == 1) {
printf("%u %u", w, h);
} else {
const char *fmt, *arg;
fmt = "%u %u" + 3; /* "%u" */
while ((arg = *++argv) != NULL) {
char c = arg[0];
if (c == 'w')
printf(fmt, w);
if (c == 'h')
printf(fmt, h);
fmt = "%u %u" + 2; /* " %u" */
}
}
putchar('\n');
return 0;
}
|
