Question

A fork has already occurred in code:

if (pid == 0) {
    printf("I am child PID %d\n", getpid());
    exit(EXIT_SUCCESS);
} else {
    pid_t child;
    int status;
    //need wait() function that gets child pid and exit status
    printf("Child PID %d terminated with return status %d\n", child, status);
}

As commented in the code, I need an appropriate wait function that will wait for child to end and get the PID and resulting exit status code of the child. Thanks!

Answer 1

You can use wait(), or waitpid() (same page, really).

Or, if you’re on BSD, wait3(), or wait4() (but not, AFAIK, wait2()).