/* Simple program to make lots of child processes */

#include <stdio.h>

#define BIGNUM 10

extern void exit();

int main()
  {
    int i, pid;
    for( i = 0; i < BIGNUM; i++ )
      {
	pid = fork();
	switch( pid )
	  {
	  case -1: /* unsuccessful */ 
	    printf("Fork failed!\n");
	    exit(-1);
	  case 0: /* child process */
	    sleep(5);
	    exit(1);
	  /* parent process: do nothing */
	  }
      }
  }