1 /**

     2  * test/demos/fork.c

     3  * Copyright (C) Markus Broeker

     4  */

     5 

     6 #include <stdio.h>

     7 #include <stdlib.h>

     8 #include <unistd.h>

     9 #include <sys/wait.h>

    10 #include <errno.h>

    11 

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

    13 {

    14     int pid;

    15     char *cmd = argv[0];

    16 

    17     pid = fork ();

    18     switch (pid) {

    19     case 0:

    20         printf ("Starting new Process\n");

    21         execve (cmd, argv, argp);

    22     case -1:

    23         perror ("FORK");

    24         return errno;

    25     default:

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

    27         wait (&pid);

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

    29         return pid;

    30     }

    31 }

    32 

    33 int main (int argc, char **argv)

    34 {

    35     char *args[] = {

    36         "/bin/ls",

    37         "-al",

    38         NULL

    39     };

    40 

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

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

    43     }

    44 

    45     return EXIT_SUCCESS;

    46 }