2 * Copyright (c) 2005 Robert N. M. Watson
3 * Copyright (c) 2012 Jilles Tjoelker
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <sys/types.h>
31 #include <sys/event.h>
32 #include <sys/filio.h>
46 * Regression test for piddling details of fifos.
50 * All activity occurs within a temporary directory created early in the
53 static char temp_dir[PATH_MAX];
63 makefifo(const char *fifoname, const char *testname)
66 if (mkfifo(fifoname, 0700) < 0)
67 err(-1, "%s: makefifo: mkfifo: %s", testname, fifoname);
71 cleanfifo(const char *fifoname, int fd1, int fd2)
78 (void)unlink(fifoname);
82 openfifo(const char *fifoname, int *reader_fdp, int *writer_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", &reader_fd, &writer_fd) < 0) {
113 warn("%s: openfifo", __func__);
114 cleanfifo("testfifo", -1, -1);
118 if (lseek(reader_fd, 1, SEEK_CUR) >= 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", &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 * fchmod(2)/fchown(2) on FIFO should work.
230 test_chmodchown(void)
233 int reader_fd, writer_fd;
237 makefifo("testfifo", __func__);
239 if (openfifo("testfifo", &reader_fd, &writer_fd) < 0) {
240 warn("%s: openfifo", __func__);
241 cleanfifo("testfifo", -1, -1);
245 if (fchmod(reader_fd, 0666) != 0) {
246 warn("%s: fchmod", __func__);
247 cleanfifo("testfifo", reader_fd, writer_fd);
251 if (stat("testfifo", &sb) != 0) {
252 warn("%s: stat", __func__);
253 cleanfifo("testfifo", reader_fd, writer_fd);
257 if ((sb.st_mode & 0777) != 0666) {
258 warnx("%s: stat chmod result", __func__);
259 cleanfifo("testfifo", reader_fd, writer_fd);
263 if (fstat(writer_fd, &sb) != 0) {
264 warn("%s: fstat", __func__);
265 cleanfifo("testfifo", reader_fd, writer_fd);
269 if ((sb.st_mode & 0777) != 0666) {
270 warnx("%s: fstat chmod result", __func__);
271 cleanfifo("testfifo", reader_fd, writer_fd);
275 if (fchown(reader_fd, -1, -1) != 0) {
276 warn("%s: fchown 1", __func__);
277 cleanfifo("testfifo", reader_fd, writer_fd);
285 if (fchown(reader_fd, u, g) != 0) {
286 warn("%s: fchown 2", __func__);
287 cleanfifo("testfifo", reader_fd, writer_fd);
290 if (stat("testfifo", &sb) != 0) {
291 warn("%s: stat", __func__);
292 cleanfifo("testfifo", reader_fd, writer_fd);
296 if (sb.st_uid != u || sb.st_gid != g) {
297 warnx("%s: stat chown result", __func__);
298 cleanfifo("testfifo", reader_fd, writer_fd);
302 if (fstat(writer_fd, &sb) != 0) {
303 warn("%s: fstat", __func__);
304 cleanfifo("testfifo", reader_fd, writer_fd);
308 if (sb.st_uid != u || sb.st_gid != g) {
309 warnx("%s: fstat chown result", __func__);
310 cleanfifo("testfifo", reader_fd, writer_fd);
314 cleanfifo("testfifo", -1, -1);
321 strcpy(temp_dir, "fifo_misc.XXXXXXXXXXX");
322 if (mkdtemp(temp_dir) == NULL)
324 atexit(atexit_temp_dir);
326 if (chdir(temp_dir) < 0)
327 err(-1, "chdir %s", temp_dir);