OpenEuphoria

[Very OT] C snippet issue

• Posted by mistertrik at hotmail.com May 01, 2003
• 528 views

Again, apologies... this is not a C discussion board.

For some reason... this code never returns!

chargv is a pointer to a pointer to a char... an array of strings.
Built for a POSIX environment.


void runextcommand(char **chargv)
{
  int child_pid;
  if ((child_pid = fork()) == 0) /*Here the program splits into 2. If this 
is the child process, then...**/
    {
      if (execvp(chargv[0], chargv) == -1)
        perror ("Invalid command"); /*Tell the user there was something 
wrong, and why.*/
      exit (1); /*If the child process is still active, it doesn't need to 
be, so quit it.*/

      printf("Debug: child\n");
    }

  else /*If this is the parent process...*/
    {
      printf("Debug: parent\n");
      wait (NULL); /*Wait until the child dies, or the parent process is 
given an interrupt of somekind*/

      /*At this stage, the stdin and stdout file handles may have been 
rerouted.
        Set them back to normal*/
      freopen("/dev/stdout", "w", stdout);
      freopen("/dev/stderr", "w", stderr);
      freopen("/dev/stdin", "r", stdin);

      return;
    }
}




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