CS452 Lab02 - Sample 3

lab02_c.c

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

int main()
{

    // use these variables

    pid_t pid, child;
    int status;

    if ((pid = fork()) < 0) {
        perror("fork failure");
        exit(1);
    }
    else if (pid == 0) {
        printf("I am child PID %ld\n", (long) getpid());
        /* insert an appropriate form of the exit() function here */

    }
    else {
        /* insert an appropriate form of the wait() system call here */

        printf("Child PID %ld terminated with return status %d\n", (long) child, WEXITSTATUS(status));
    }
    return 0;
}