/***INCLUDE********************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

main ()

{
FILE *ifstat;
char data[2048];
int i=1;
char *bwin,*bwout;
float ifstat_02,ifstat_05;

ifstat = popen("ifstat -i eth0 -n 1 3|grep -vE \"eth0|KB/s\"","r");
if(!ifstat){
        fprintf(stderr, "Could not open pipe for output.\n");
        return;
}

while ( fgets(data, sizeof data, ifstat ) != NULL ) {
        bwin = strtok(data," ");
        bwout = strtok(NULL," \n");

        if ( i == 2 )
        {
                ifstat_02 = bwout;
        }
        printf("%d -> in: %s -> out: %s -> ifstat_02: %f\n",i,bwin,bwout,ifstat_02);
        i++;
}

if (pclose(ifstat) != 0)
        fprintf(stderr," Error: Failed to close command stream \n");
return;
}