Erik Andersen | e49d5ec | 2000-02-08 19:58:47 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
Eric Andersen | abc0f4f | 1999-12-08 23:19:36 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Mini free implementation for busybox |
| 4 | * |
Eric Andersen | 8ec10a9 | 2001-01-27 09:33:39 +0000 | [diff] [blame] | 5 | * Copyright (C) 1999,2000,2001 by Lineo, inc. |
Eric Andersen | abc0f4f | 1999-12-08 23:19:36 +0000 | [diff] [blame] | 6 | * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | * |
| 22 | */ |
| 23 | |
Eric Andersen | abc0f4f | 1999-12-08 23:19:36 +0000 | [diff] [blame] | 24 | #include <stdio.h> |
Eric Andersen | 10dc9d4 | 2000-06-26 10:45:52 +0000 | [diff] [blame] | 25 | #include <errno.h> |
Eric Andersen | ed3ef50 | 2001-01-27 08:24:39 +0000 | [diff] [blame] | 26 | #include <stdlib.h> |
Eric Andersen | cbe31da | 2001-02-20 06:14:08 +0000 | [diff] [blame] | 27 | #include "busybox.h" |
Eric Andersen | abc0f4f | 1999-12-08 23:19:36 +0000 | [diff] [blame] | 28 | |
Eric Andersen | abc0f4f | 1999-12-08 23:19:36 +0000 | [diff] [blame] | 29 | extern int free_main(int argc, char **argv) |
| 30 | { |
Erik Andersen | d07ee46 | 2000-02-21 21:26:32 +0000 | [diff] [blame] | 31 | struct sysinfo info; |
| 32 | sysinfo(&info); |
Eric Andersen | 73de656 | 2000-09-10 16:10:41 +0000 | [diff] [blame] | 33 | |
| 34 | /* Kernels prior to 2.4.x will return info.mem_unit==0, so cope... */ |
Eric Andersen | 10dc9d4 | 2000-06-26 10:45:52 +0000 | [diff] [blame] | 35 | if (info.mem_unit==0) { |
Eric Andersen | 73de656 | 2000-09-10 16:10:41 +0000 | [diff] [blame] | 36 | info.mem_unit=1; |
Eric Andersen | 10dc9d4 | 2000-06-26 10:45:52 +0000 | [diff] [blame] | 37 | } |
Eric Andersen | 73de656 | 2000-09-10 16:10:41 +0000 | [diff] [blame] | 38 | info.mem_unit*=1024; |
| 39 | |
| 40 | /* TODO: Make all this stuff not overflow when mem >= 4 Gib */ |
| 41 | info.totalram/=info.mem_unit; |
| 42 | info.freeram/=info.mem_unit; |
| 43 | info.totalswap/=info.mem_unit; |
| 44 | info.freeswap/=info.mem_unit; |
| 45 | info.sharedram/=info.mem_unit; |
| 46 | info.bufferram/=info.mem_unit; |
| 47 | |
Matt Kraai | 3bd8bd8 | 2000-07-14 23:28:47 +0000 | [diff] [blame] | 48 | if (argc > 1 && **(argv + 1) == '-') |
Eric Andersen | 67991cf | 2001-02-14 21:23:06 +0000 | [diff] [blame] | 49 | show_usage(); |
Erik Andersen | d07ee46 | 2000-02-21 21:26:32 +0000 | [diff] [blame] | 50 | |
| 51 | printf("%6s%13s%13s%13s%13s%13s\n", "", "total", "used", "free", |
| 52 | "shared", "buffers"); |
| 53 | |
| 54 | printf("%6s%13ld%13ld%13ld%13ld%13ld\n", "Mem:", info.totalram, |
| 55 | info.totalram-info.freeram, info.freeram, |
| 56 | info.sharedram, info.bufferram); |
| 57 | |
| 58 | printf("%6s%13ld%13ld%13ld\n", "Swap:", info.totalswap, |
| 59 | info.totalswap-info.freeswap, info.freeswap); |
| 60 | |
| 61 | printf("%6s%13ld%13ld%13ld\n", "Total:", info.totalram+info.totalswap, |
| 62 | (info.totalram-info.freeram)+(info.totalswap-info.freeswap), |
| 63 | info.freeram+info.freeswap); |
Matt Kraai | 3e856ce | 2000-12-01 02:55:13 +0000 | [diff] [blame] | 64 | return EXIT_SUCCESS; |
Eric Andersen | abc0f4f | 1999-12-08 23:19:36 +0000 | [diff] [blame] | 65 | } |
Eric Andersen | 10dc9d4 | 2000-06-26 10:45:52 +0000 | [diff] [blame] | 66 | |
| 67 | |