restart root nginx

restart.c

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>

int main(void)
{
  int result;
  setuid( 0 );
  result = system("/bin/bash -c 'kill -HUP `cat /usr/local/var/run/nginx.pid`'");
  if (result == 0)
    printf("OK!\n");
  else 
    printf("FAIL!\n");
  return 0;
}