Contents of /tags/mkinitrd-6_1_3/busybox/miscutils/ttysize.c
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Mon May 4 18:51:23 2009 UTC (15 years, 4 months ago) by niro
File MIME type: text/plain
File size: 975 byte(s)
Mon May 4 18:51:23 2009 UTC (15 years, 4 months ago) by niro
File MIME type: text/plain
File size: 975 byte(s)
tagged 'mkinitrd-6_1_3'
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * Replacement for "stty size", which is awkward for shell script use. |
4 | * - Allows to request width, height, or both, in any order. |
5 | * - Does not complain on error, but returns width 80, height 24. |
6 | * - Size: less than 200 bytes |
7 | * |
8 | * Copyright (C) 2007 by Denys Vlasenko <vda.linux@googlemail.com> |
9 | * |
10 | * Licensed under the GPL v2, see the file LICENSE in this tarball. |
11 | */ |
12 | #include "libbb.h" |
13 | |
14 | int ttysize_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
15 | int ttysize_main(int argc, char **argv) |
16 | { |
17 | unsigned w, h; |
18 | struct winsize wsz; |
19 | |
20 | w = 80; |
21 | h = 24; |
22 | if (!ioctl(0, TIOCGWINSZ, &wsz)) { |
23 | w = wsz.ws_col; |
24 | h = wsz.ws_row; |
25 | } |
26 | |
27 | if (argc == 1) { |
28 | printf("%u %u", w, h); |
29 | } else { |
30 | const char *fmt, *arg; |
31 | |
32 | fmt = "%u %u" + 3; /* "%u" */ |
33 | while ((arg = *++argv) != NULL) { |
34 | char c = arg[0]; |
35 | if (c == 'w') |
36 | printf(fmt, w); |
37 | if (c == 'h') |
38 | printf(fmt, h); |
39 | fmt = "%u %u" + 2; /* " %u" */ |
40 | } |
41 | } |
42 | bb_putchar('\n'); |
43 | return 0; |
44 | } |