Last change
on this file since 3862 was 3232, checked in by Bruno Cornec, 11 years ago |
- Update mindi-busybox to 1.21.1
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-
Property svn:eol-style
set to
native
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File size:
1.1 KB
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1 | /* vi: set sw=4 ts=4: */
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2 | /*
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3 | * Replacement for "stty size", which is awkward for shell script use.
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4 | * - Allows to request width, height, or both, in any order.
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5 | * - Does not complain on error, but returns width 80, height 24.
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6 | * - Size: less than 200 bytes
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7 | *
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8 | * Copyright (C) 2007 by Denys Vlasenko <vda.linux@googlemail.com>
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9 | *
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10 | * Licensed under GPLv2, see file LICENSE in this source tree.
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11 | */
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12 |
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13 | //usage:#define ttysize_trivial_usage
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14 | //usage: "[w] [h]"
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15 | //usage:#define ttysize_full_usage "\n\n"
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16 | //usage: "Print dimension(s) of stdin's terminal, on error return 80x25"
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17 |
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18 | #include "libbb.h"
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19 |
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20 | int ttysize_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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21 | int ttysize_main(int argc UNUSED_PARAM, char **argv)
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22 | {
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23 | unsigned w, h;
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24 | struct winsize wsz;
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25 |
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26 | w = 80;
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27 | h = 24;
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28 | if (!ioctl(0, TIOCGWINSZ, &wsz)) {
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29 | w = wsz.ws_col;
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30 | h = wsz.ws_row;
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31 | }
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32 |
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33 | if (!argv[1]) {
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34 | printf("%u %u", w, h);
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35 | } else {
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36 | const char *fmt, *arg;
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37 |
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38 | fmt = "%u %u" + 3; /* "%u" */
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39 | while ((arg = *++argv) != NULL) {
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40 | char c = arg[0];
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41 | if (c == 'w')
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42 | printf(fmt, w);
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43 | if (c == 'h')
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44 | printf(fmt, h);
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45 | fmt = "%u %u" + 2; /* " %u" */
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46 | }
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47 | }
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48 | bb_putchar('\n');
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49 | return 0;
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50 | }
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