#include <unistd.h>
#include <sys/types.h>
#include <iostream>
#include <cstdlib>

using namespace std;

int main() {
    char tempName[] = "/tmp/ID_XXXXXX";
    cout << "The real uiserid is " << getuid() << endl;
    cout << "The effective uiserid is " << geteuid() << endl;
    cout << "The real group id is " << getgid() << endl;
    cout << "The effective group id is " << getegid() << endl;

    int fd;

    fd = mkstemp(tempName);
    cout << "Just created the file " << tempName << endl;


    return 0;
}