2 * Copyright (c) 2005 Robert N. M. Watson
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, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/types.h>
30 #include <sys/event.h>
31 #include <sys/filio.h>
45 * Regression test for piddling details of fifos.
49 * All activity occurs within a temporary directory created early in the
52 char temp_dir[PATH_MAX];
62 makefifo(const char *fifoname, const char *testname)
65 if (mkfifo(fifoname, 0700) < 0)
66 err(-1, "%s: makefifo: mkfifo: %s", testname, fifoname);
70 cleanfifo(const char *fifoname, int fd1, int fd2)
77 (void)unlink(fifoname);
81 openfifo(const char *fifoname, const char *testname, int *reader_fdp,
86 fd1 = open(fifoname, O_RDONLY | O_NONBLOCK);
89 fd2 = open(fifoname, O_WRONLY | O_NONBLOCK);
103 * POSIX does not allow lseek(2) on fifos, so we expect ESPIPE as a result.
108 int reader_fd, writer_fd;
110 makefifo("testfifo", __func__);
112 if (openfifo("testfifo", __func__, &reader_fd, &writer_fd) < 0) {
113 warn("%s: openfifo", __func__);
114 cleanfifo("testfifo", -1, -1);
118 if (lseek(reader_fd, SEEK_CUR, 1) >= 0) {
119 warnx("%s: lseek succeeded instead of returning ESPIPE",
121 cleanfifo("testfifo", reader_fd, writer_fd);
124 if (errno != ESPIPE) {
125 warn("%s: lseek returned instead of ESPIPE", __func__);
126 cleanfifo("testfifo", reader_fd, writer_fd);
130 cleanfifo("testfifo", reader_fd, writer_fd);
134 * truncate(2) on FIFO should silently return success.
140 makefifo("testfifo", __func__);
142 if (truncate("testfifo", 1024) != 0) {
143 warn("%s: truncate", __func__);
144 cleanfifo("testfifo", -1, -1);
148 cleanfifo("testfifo", -1, -1);
152 test_ioctl_setclearflag(int fd, int flag, const char *testname,
153 const char *fdname, const char *flagname)
158 if (ioctl(fd, flag, &i) < 0) {
159 warn("%s:%s: ioctl(%s, %s, 1)", testname, __func__, fdname,
161 cleanfifo("testfifo", -1, -1);
166 if (ioctl(fd, flag, &i) < 0) {
167 warn("%s:%s: ioctl(%s, %s, 0)", testname, __func__, fdname,
169 cleanfifo("testfifo", -1, -1);
177 * Test that various ioctls can be issued against the file descriptor. We
178 * don't currently test the semantics of these changes here.
183 int reader_fd, writer_fd;
185 makefifo("testfifo", __func__);
187 if (openfifo("testfifo", __func__, &reader_fd, &writer_fd) < 0) {
188 warn("%s: openfifo", __func__);
189 cleanfifo("testfifo", -1, -1);
194 * Set and remove the non-blocking I/O flag.
196 if (test_ioctl_setclearflag(reader_fd, FIONBIO, __func__,
197 "reader_fd", "FIONBIO") < 0) {
198 cleanfifo("testfifo", reader_fd, writer_fd);
202 if (test_ioctl_setclearflag(writer_fd, FIONBIO, __func__,
203 "writer_fd", "FIONBIO") < 0) {
204 cleanfifo("testfifo", reader_fd, writer_fd);
209 * Set and remove the async I/O flag.
211 if (test_ioctl_setclearflag(reader_fd, FIOASYNC, __func__,
212 "reader_fd", "FIOASYNC") < 0) {
213 cleanfifo("testfifo", reader_fd, writer_fd);
217 if (test_ioctl_setclearflag(writer_fd, FIOASYNC, __func__,
218 "writer_fd", "FIONASYNC") < 0) {
219 cleanfifo("testfifo", reader_fd, writer_fd);
223 cleanfifo("testfifo", reader_fd, writer_fd);
227 main(int argc, char *argv[])
230 strcpy(temp_dir, "/tmp/fifo_misc.XXXXXXXXXXX");
231 if (mkdtemp(temp_dir) == NULL)
233 atexit(atexit_temp_dir);
235 if (chdir(temp_dir) < 0)
236 err(-1, "chdir %s", temp_dir);