busybox/procps/free.c
Denys Vlasenko 2ec91aead5 *: remove some uses of argc
function                                             old     new   delta
whoami_main                                           34      37      +3
logname_main                                          60      63      +3
hostid_main                                           35      38      +3
ttysize_main                                         136     135      -1
nmeter_main                                          673     672      -1
logger_main                                          387     386      -1
uuencode_main                                        330     328      -2
ifupdown_main                                       2125    2123      -2
mesg_main                                            158     155      -3
free_main                                            333     330      -3
cal_main                                             902     899      -3
acpid_main                                           443     440      -3
ar_main                                              196     189      -7
find_main                                            476     467      -9
ifconfig_main                                       1235    1221     -14
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/12 up/down: 9/-49)            Total: -40 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-01-04 14:15:38 +01:00

69 lines
1.8 KiB
C

/* vi: set sw=4 ts=4: */
/*
* Mini free implementation for busybox
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
* Licensed under the GPL version 2, see the file LICENSE in this tarball.
*/
/* getopt not needed */
#include "libbb.h"
int free_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int free_main(int argc UNUSED_PARAM, char **argv)
{
struct sysinfo info;
sysinfo(&info);
/* Kernels prior to 2.4.x will return info.mem_unit==0, so cope... */
if (info.mem_unit == 0) {
info.mem_unit=1;
}
if (info.mem_unit == 1) {
info.mem_unit=1024;
/* TODO: Make all this stuff not overflow when mem >= 4 Gib */
info.totalram/=info.mem_unit;
info.freeram/=info.mem_unit;
#ifndef __uClinux__
info.totalswap/=info.mem_unit;
info.freeswap/=info.mem_unit;
#endif
info.sharedram/=info.mem_unit;
info.bufferram/=info.mem_unit;
} else {
info.mem_unit/=1024;
/* TODO: Make all this stuff not overflow when mem >= 4 Gib */
info.totalram*=info.mem_unit;
info.freeram*=info.mem_unit;
#ifndef __uClinux__
info.totalswap*=info.mem_unit;
info.freeswap*=info.mem_unit;
#endif
info.sharedram*=info.mem_unit;
info.bufferram*=info.mem_unit;
}
if (argv[1] && argv[1][0] == '-')
bb_show_usage();
printf("%6s%13s%13s%13s%13s%13s\n", "", "total", "used", "free",
"shared", "buffers");
printf("%6s%13ld%13ld%13ld%13ld%13ld\n", "Mem:", info.totalram,
info.totalram-info.freeram, info.freeram,
info.sharedram, info.bufferram);
#ifndef __uClinux__
printf("%6s%13ld%13ld%13ld\n", "Swap:", info.totalswap,
info.totalswap-info.freeswap, info.freeswap);
printf("%6s%13ld%13ld%13ld\n", "Total:", info.totalram+info.totalswap,
(info.totalram-info.freeram)+(info.totalswap-info.freeswap),
info.freeram+info.freeswap);
#endif
return EXIT_SUCCESS;
}