text: /*-
   * Copyright (C) 2005 Michael J. Silbersack <silby@freebsd.org> 
   *  All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice(s), this list of conditions and the following disclaimer as
   *    the first lines of this file unmodified other than the possible
   *    addition of one or more copyright notices.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice(s), this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
   * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
   * DAMAGE.
   */
  
  #include <stdio.h>
  #include <stdlib.h>
  #include <fcntl.h>
  
  /*
   * $FreeBSD: src/tools/regression/pipe/pipe-overcommit2.c,v 1.1 2005/01/21 06:46:18 silby Exp $
   * This program tests how sys_pipe.c handles the case where there
   * is ample memory to allocate a pipe, but the file descriptor
   * limit for that user has been exceeded.
   */
  
  int main (int argc, void *argv[])
  
  {
  	int i, returnval, lastfd;
  	int pipes[10000];
  
  	for (i = 0; i < 100000; i++) {
  		returnval = open(argv[0], O_RDONLY);
  		if (returnval < 1)
  			break; /* All descriptors exhausted. */
  		else
  			lastfd = returnval;
  	}
  
  	/* First falloc failure case in sys_pipe.c:pipe() */
  	for (i = 0; i < 1000; i++) {
  		returnval = pipe(&pipes[i]);
  	}
  
  	/*
  	 * Free just one FD so that the second falloc failure
  	 * case will occur.
  	 */
  	close(lastfd);
  
  	for (i = 0; i < 1000; i++) {
  		returnval = pipe(&pipes[i]);
  	}
  	printf("PASS\n");
  }
  