/**

 * fork.c

 * Copyright (C) 2008 Markus Broeker

 */

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <sys/wait.h>

#include <errno.h>

int fork_proc (char **argv, char **argp)

{

    int pid;

    char *cmd = argv[0];

    pid = fork ();

    switch (pid) {

    case 0:

        printf ("Starting new Process\n");

        execve (cmd, argv, argp);

        exit (EXIT_FAILURE);

    case -1:

        perror ("FORK");

        return errno;

    default:

        printf ("Pid started as %d\n", pid);

        wait (&pid);

        printf ("Exit-Status = %d\n", pid);

        return pid;

    }

    // should never happen

    return -1;

}

int main (int argc, char **argv)

{

    char *args[] = {

        "/bin/ls",

        "-al",

        NULL

    };

    if (fork_proc (args, NULL) == 0) {

        printf ("It just works :P\n");

    }

    return EXIT_SUCCESS;

}