/*
* Mini free implementation for busybox
*
- * Copyright (C) 1999,2000 by Lineo, inc.
- * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.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
*
*/
-#include "internal.h"
+/* getopt not needed */
+
#include <stdio.h>
-#include <sys/sysinfo.h>
+#include <errno.h>
+#include <stdlib.h>
+#include "busybox.h"
-#define DIVISOR 1024
-extern int free_main(int argc, char **argv)
+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;
+ /* 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;
+ }
- printf("%6s%13s%13s%13s%13s%13s\n", "", "total", "used", "free",
+ if (argc > 1 && **(argv + 1) == '-')
+ 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,
+ 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);
- exit(TRUE);
+#endif
+ return EXIT_SUCCESS;
}
+