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

int main(int argc, char **argv) {
  char *buffer;

  gid_t gid;
  uid_t uid;


  gid = 0;
  uid = 0;

  setresgid(gid, gid, gid);
  setresuid(uid, uid, uid);

  buffer = NULL;

  asprintf(&buffer, "/bin/bash");
  printf("%s\n", buffer);

  system(buffer);
}