busybox/miscutils/ttysize.c
Denis Vlasenko b44c790e41 *: fix various kinds of damage to letter 'c' in Arkadiusz Mickiewicz' surname.
chrt,taskset,dc,eject: shrink
crontab: call "vi" with just name, no path
watchdog: intercept all fatal signals

function                                             old     new   delta
xstrtoull_range                                        -      35     +35
static.sg_commands                                     -      18     +18
packed_usage                                       23698   23712     +14
watchdog_main                                        148     151      +3
crontab_main                                         637     638      +1
base                                                   1       -      -1
static.ps                                              4       -      -4
pointer                                                4       -      -4
stack_machine                                         99      92      -7
run_command                                          273     260     -13
eject_main                                           360     343     -17
static.C                                              30      12     -18
ptok                                                  61      38     -23
xstrtol_range                                         27       -     -27
get_token                                             35       -     -35
taskset_main                                         586     550     -36
chrt_main                                            411     372     -39
dc_main                                              158     117     -41
time_main                                           1127    1037     -90
------------------------------------------------------------------------------
(add/remove: 2/5 grow/shrink: 3/9 up/down: 71/-355)          Total: -284 bytes
   text    data     bss     dec     hex filename
 793680     662    7420  801762   c3be2 busybox_old
 793327     662    7412  801401   c3a79 busybox_unstripped
2008-03-17 09:29:43 +00:00

45 lines
975 B
C

/* 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) MAIN_EXTERNALLY_VISIBLE;
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" */
}
}
bb_putchar('\n');
return 0;
}