#include <stdio.h>

       #include <stdlib.h>

       #include <errno.h>

       #include <linux/unistd.h>       /* for _syscallX macros/related stuff */

       #include <linux/kernel.h>       /* for struct sysinfo */

       //_syscall1(int, sysinfo, struct sysinfo *, info);

       /* Note: if you copy directly from the nroff source, remember to

 *        REMOVE the extra backslashes in the printf statement. */

       int

       main(void)

       {

           struct sysinfo s_info;

           int error;

           error = sysinfo(&s_info);

           printf("code error = %d\n", error);

           printf("Uptime = %lds\nLoad: 1 min %lu / 5 min %lu / 15 min %lu\n"

                  "RAM: total %lu / free %lu / shared %lu\n"

                  "Memory in buffers = %lu\nSwap: total %lu / free %lu\n"

                  "Number of processes = %d\n",

                  s_info.uptime, s_info.loads[0],

                  s_info.loads[1], s_info.loads[2],

                  s_info.totalram, s_info.freeram,

                  s_info.sharedram, s_info.bufferram,

                  s_info.totalswap, s_info.freeswap,

                  s_info.procs);

           exit(EXIT_SUCCESS);

       }