/***********************************************************************
* Code listing from "Advanced Linux Programming," by CodeSourcery LLC  *
* Copyright (C) 2001 by New Riders Publishing                          *
* See COPYRIGHT for license information.                               *
***********************************************************************/

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

int main() 
{
  uid_t uid = geteuid ();
  gid_t gid = getegid ();
  printf ("uid=%d gid=%d\n", uid, gid);
  return 0;
}