summaryrefslogtreecommitdiff
path: root/free.c
diff options
context:
space:
mode:
Diffstat (limited to 'free.c')
-rw-r--r--free.c32
1 files changed, 25 insertions, 7 deletions
diff --git a/free.c b/free.c
index b071354..78a36fe 100644
--- a/free.c
+++ b/free.c
@@ -23,15 +23,33 @@
#include "internal.h"
#include <stdio.h>
+#include <sys/sysinfo.h>
-
-#if ! defined BB_FEATURE_USE_PROCFS
-#error Sorry, I depend on the /proc filesystem right now.
-#endif
-
+#define DIVISOR 1024
extern int free_main(int argc, char **argv)
{
- char *cmd[] = { "cat", "/proc/meminfo", "\0" };
+ struct sysinfo info;
+ sysinfo(&info);
+ info.totalram/=DIVISOR;
+ info.freeram/=DIVISOR;
+ info.totalswap/=DIVISOR;
+ info.freeswap/=DIVISOR;
+ info.sharedram/=DIVISOR;
+ info.bufferram/=DIVISOR;
+
+
+ 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);
- exit(cat_main(3, cmd));
+ 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);
}