2 * Copyright (C) 2005 Michael J. Silbersack <silby@freebsd.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice(s), this list of conditions and the following disclaimer as
10 * the first lines of this file unmodified other than the possible
11 * addition of one or more copyright notices.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice(s), this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
23 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
29 #include <sys/param.h>
39 * This program tests how sys_pipe.c handles the case where there
40 * is ample memory to allocate a pipe, but the file descriptor
41 * limit for that user has been exceeded.
47 char template[] = "pipe.XXXXXXXXXX";
48 int lastfd, pipes[10000], returnval;
53 if (mkstemp(template) == -1)
54 err(1, "mkstemp failed");
56 for (i = 0; i < nitems(pipes); i++) {
57 returnval = open(template, O_RDONLY);
58 if (returnval == -1 && (errno == ENFILE || errno == EMFILE))
59 break; /* All descriptors exhausted. */
64 /* First falloc failure case in sys_pipe.c:pipe() */
65 for (i = 0; i < 1000; i++) {
66 returnval = pipe(&pipes[i]);
70 * Free just one FD so that the second falloc failure
75 for (i = 0; i < 1000; i++) {
76 returnval = pipe(&pipes[i]);