1 /* vi: set sw=4 ts=4: */
3 * Mini free implementation for busybox
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 /* getopt not needed */
30 int free_main(int argc, char **argv)
35 /* Kernels prior to 2.4.x will return info.mem_unit==0, so cope... */
36 if (info.mem_unit==0) {
39 if ( info.mem_unit == 1 ) {
42 /* TODO: Make all this stuff not overflow when mem >= 4 Gib */
43 info.totalram/=info.mem_unit;
44 info.freeram/=info.mem_unit;
46 info.totalswap/=info.mem_unit;
47 info.freeswap/=info.mem_unit;
49 info.sharedram/=info.mem_unit;
50 info.bufferram/=info.mem_unit;
53 /* TODO: Make all this stuff not overflow when mem >= 4 Gib */
54 info.totalram*=info.mem_unit;
55 info.freeram*=info.mem_unit;
57 info.totalswap*=info.mem_unit;
58 info.freeswap*=info.mem_unit;
60 info.sharedram*=info.mem_unit;
61 info.bufferram*=info.mem_unit;
64 if (argc > 1 && **(argv + 1) == '-')
67 printf("%6s%13s%13s%13s%13s%13s\n", "", "total", "used", "free",
70 printf("%6s%13ld%13ld%13ld%13ld%13ld\n", "Mem:", info.totalram,
71 info.totalram-info.freeram, info.freeram,
72 info.sharedram, info.bufferram);
75 printf("%6s%13ld%13ld%13ld\n", "Swap:", info.totalswap,
76 info.totalswap-info.freeswap, info.freeswap);
78 printf("%6s%13ld%13ld%13ld\n", "Total:", info.totalram+info.totalswap,
79 (info.totalram-info.freeram)+(info.totalswap-info.freeswap),
80 info.freeram+info.freeswap);