Removed proc dependancies for init and free (which maintaining exactly

the same functionality).  /proc takes up 90k of kernel space, so it is
nice to avoid using it at all costs.  The only places where it is depended
on is for cetain optional mount/umount features, and for ps and lsmod.
 -Erik

1 files changed, 25 insertions, 7 deletions

diff --git a/procps/free.c b/procps/free.c
index b07135430..78a36fe9a 100644
--- a/procps/free.c
+++ b/procps/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);
 }