| /* vi: set sw=4 ts=4: */ |
| /* |
| * Mini free implementation for busybox |
| * |
| * Copyright (C) 1999,2000 by Lineo, inc. |
| * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| */ |
| |
| #include "internal.h" |
| #include <stdio.h> |
| #include <sys/sysinfo.h> |
| |
| #define DIVISOR 1024 |
| extern int free_main(int argc, char **argv) |
| { |
| struct sysinfo info; |
| sysinfo(&info); |
| info.totalram/=DIVISOR; |
| info.freeram/=DIVISOR; |
| info.totalswap/=DIVISOR; |
| info.freeswap/=DIVISOR; |
| info.sharedram/=DIVISOR; |
| info.bufferram/=DIVISOR; |
| |
| if (argc > 1 && **(argv + 1) == '-') { |
| usage("free\n" |
| #ifndef BB_FEATURE_TRIVIAL_HELP |
| "\nDisplays the amount of free and used system memory\n" |
| #endif |
| ); |
| } |
| |
| |
| 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); |
| |
| 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); |
| exit(TRUE); |
| } |