062defcd30
that don't obviously fit into create, open, and io. For now, add only a regression test to make sure that lseek() fails with ESPIPE (which it doesn't).
141 lines
3.3 KiB
C
141 lines
3.3 KiB
C
/*-
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* Copyright (c) 2005 Robert N. M. Watson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/stat.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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/*
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* Regression test for piddling details of fifos.
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*/
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/*
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* All activity occurs within a temporary directory created early in the
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* test.
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*/
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char temp_dir[PATH_MAX];
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static void __unused
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atexit_temp_dir(void)
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{
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rmdir(temp_dir);
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}
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static void
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makefifo(const char *fifoname, const char *testname)
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{
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if (mkfifo(fifoname, 0700) < 0)
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err(-1, "%s: makefifo: mkfifo: %s", testname, fifoname);
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}
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static void
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cleanfifo(const char *fifoname, int fd1, int fd2)
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{
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if (fd1 != -1)
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close(fd1);
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if (fd2 != -1)
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close(fd2);
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(void)unlink(fifoname);
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}
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static int
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openfifo(const char *fifoname, const char *testname, int *reader_fdp,
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int *writer_fdp)
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{
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int error, fd1, fd2;
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fd1 = open(fifoname, O_RDONLY | O_NONBLOCK);
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if (fd1 < 0)
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return (-1);
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fd2 = open(fifoname, O_WRONLY | O_NONBLOCK);
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if (fd2 < 0) {
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error = errno;
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close(fd1);
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errno = error;
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return (-1);
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}
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*reader_fdp = fd1;
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*writer_fdp = fd2;
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return (0);
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}
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static void
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test_lseek(void)
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{
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int reader_fd, writer_fd;
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makefifo("testfifo", __func__);
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if (openfifo("testfifo", __func__, &reader_fd, &writer_fd) < 0) {
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warn("%s: openfifo", __func__);
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cleanfifo("testfifo", -1, -1);
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exit(-1);
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}
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if (lseek(reader_fd, SEEK_CUR, 1) >= 0) {
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warnx("%s: lseek succeeded instead of returning ESPIPE",
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__func__);
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cleanfifo("testfifo", reader_fd, writer_fd);
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exit(-1);
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}
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if (errno != ESPIPE) {
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warn("%s: lseek returned instead of ESPIPE", __func__);
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cleanfifo("testfifo", reader_fd, writer_fd);
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exit(-1);
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}
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cleanfifo("testfifo", reader_fd, writer_fd);
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}
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int
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main(int argc, char *argv[])
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{
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strcpy(temp_dir, "/tmp/fifo_misc.XXXXXXXXXXX");
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if (mkdtemp(temp_dir) == NULL)
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err(-1, "mkdtemp");
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atexit(atexit_temp_dir);
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if (chdir(temp_dir) < 0)
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err(-1, "chdir %s", temp_dir);
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test_lseek();
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return (0);
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}
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