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

#define ROOTDIR "/home/whatnot"
#define CWDDIR "/foo"

int main()
{
	const int uid=271;
	const int gid=271;

	if (chroot(ROOTDIR) == -1) {
		printf("Failed setting new root dir.\n");
		exit(1);
	}
	if (setgid(gid) == -1) {
		printf("Failed setting GID.\n");
		exit(1);
	}
	if (setuid(uid) == -1) {
		printf("Failed setting UID.\n");
		exit(1);
	}
	chdir(CWDDIR);
	if (execle("/bin/myprog", "myprog", "-s", NULL)) {
		printf("Failed executing program.\n");
		exit(1);
	}

	return(0);
}