diff options
Diffstat (limited to 'contrib/netbsd-tests/lib/libc/sys/t_mkfifo.c')
| -rw-r--r-- | contrib/netbsd-tests/lib/libc/sys/t_mkfifo.c | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/lib/libc/sys/t_mkfifo.c b/contrib/netbsd-tests/lib/libc/sys/t_mkfifo.c new file mode 100644 index 0000000..56bc4c8 --- /dev/null +++ b/contrib/netbsd-tests/lib/libc/sys/t_mkfifo.c @@ -0,0 +1,276 @@ +/* $NetBSD: t_mkfifo.c,v 1.2 2011/11/02 06:04:48 jruoho Exp $ */ + +/*- + * Copyright (c) 2011 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Jukka Ruohonen. + * + * 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, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``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 FOUNDATION OR CONTRIBUTORS + * 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 <sys/cdefs.h> +__RCSID("$NetBSD: t_mkfifo.c,v 1.2 2011/11/02 06:04:48 jruoho Exp $"); + +#include <sys/stat.h> +#include <sys/wait.h> + +#include <atf-c.h> +#include <errno.h> +#include <fcntl.h> +#include <limits.h> +#include <stdlib.h> +#include <signal.h> +#include <string.h> +#include <unistd.h> + +static const char path[] = "fifo"; +static void support(void); + +static void +support(void) +{ + + errno = 0; + + if (mkfifo(path, 0600) == 0) { + ATF_REQUIRE(unlink(path) == 0); + return; + } + + if (errno == EOPNOTSUPP) + atf_tc_skip("the kernel does not support FIFOs"); + else { + atf_tc_fail("mkfifo(2) failed"); + } +} + +ATF_TC_WITH_CLEANUP(mkfifo_block); +ATF_TC_HEAD(mkfifo_block, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test that FIFOs block"); +} + +ATF_TC_BODY(mkfifo_block, tc) +{ + int sta, fd = -1; + pid_t pid; + + support(); + + ATF_REQUIRE(mkfifo(path, 0600) == 0); + + pid = fork(); + ATF_REQUIRE(pid >= 0); + + if (pid == 0) { + + /* + * If we open the FIFO as read-only (write-only), + * the call should block until another process + * opens the FIFO for writing (reading). + */ + fd = open(path, O_RDONLY); + + _exit(EXIT_FAILURE); /* NOTREACHED */ + } + + (void)sleep(1); + + ATF_REQUIRE(kill(pid, SIGKILL) == 0); + + (void)wait(&sta); + + if (WIFSIGNALED(sta) == 0 || WTERMSIG(sta) != SIGKILL) + atf_tc_fail("FIFO did not block"); + + (void)close(fd); + (void)unlink(path); +} + +ATF_TC_CLEANUP(mkfifo_block, tc) +{ + (void)unlink(path); +} + +ATF_TC_WITH_CLEANUP(mkfifo_err); +ATF_TC_HEAD(mkfifo_err, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test erros from mkfifo(2)"); +} + +ATF_TC_BODY(mkfifo_err, tc) +{ + char buf[PATH_MAX + 1]; + + support(); + + (void)memset(buf, 'x', sizeof(buf)); + ATF_REQUIRE(mkfifo(path, 0600) == 0); + + errno = 0; + ATF_REQUIRE_ERRNO(EFAULT, mkfifo((char *)-1, 0600) == -1); + + errno = 0; + ATF_REQUIRE_ERRNO(EEXIST, mkfifo("/etc/passwd", 0600) == -1); + + errno = 0; + ATF_REQUIRE_ERRNO(EEXIST, mkfifo(path, 0600) == -1); + + errno = 0; + ATF_REQUIRE_ERRNO(ENAMETOOLONG, mkfifo(buf, 0600) == -1); + + errno = 0; + ATF_REQUIRE_ERRNO(ENOENT, mkfifo("/a/b/c/d/e/f/g", 0600) == -1); + + ATF_REQUIRE(unlink(path) == 0); +} + +ATF_TC_CLEANUP(mkfifo_err, tc) +{ + (void)unlink(path); +} + +ATF_TC_WITH_CLEANUP(mkfifo_nonblock); +ATF_TC_HEAD(mkfifo_nonblock, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test O_NONBLOCK with FIFOs"); +} + +ATF_TC_BODY(mkfifo_nonblock, tc) +{ + int fd, sta; + pid_t pid; + + support(); + + fd = -1; + ATF_REQUIRE(mkfifo(path, 0600) == 0); + + pid = fork(); + ATF_REQUIRE(pid >= 0); + + if (pid == 0) { + + /* + * If we open the FIFO as O_NONBLOCK, the O_RDONLY + * call should return immediately, whereas the call + * for write-only should fail with ENXIO. + */ + fd = open(path, O_RDONLY | O_NONBLOCK); + + if (fd >= 0) + _exit(EXIT_SUCCESS); + + (void)pause(); /* NOTREACHED */ + } + + (void)sleep(1); + + errno = 0; + ATF_REQUIRE_ERRNO(ENXIO, open(path, O_WRONLY | O_NONBLOCK) == -1); + + (void)kill(pid, SIGKILL); + (void)wait(&sta); + + if (WIFSIGNALED(sta) != 0 || WTERMSIG(sta) == SIGKILL) + atf_tc_fail("FIFO blocked for O_NONBLOCK open(2)"); + + (void)close(fd); + (void)unlink(path); +} + +ATF_TC_CLEANUP(mkfifo_nonblock, tc) +{ + (void)unlink(path); +} + +ATF_TC_WITH_CLEANUP(mkfifo_perm); +ATF_TC_HEAD(mkfifo_perm, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test permissions with mkfifo(2)"); + atf_tc_set_md_var(tc, "require.user", "unprivileged"); +} + +ATF_TC_BODY(mkfifo_perm, tc) +{ + + support(); + + errno = 0; + ATF_REQUIRE_ERRNO(EACCES, mkfifo("/root/fifo", 0600) == -1); + + ATF_REQUIRE(mkfifo(path, 0600) == 0); + + /* + * For some reason this fails with EFTYPE... + */ + errno = 0; + ATF_REQUIRE_ERRNO(EFTYPE, chmod(path, 1777) == -1); + + ATF_REQUIRE(unlink(path) == 0); +} + +ATF_TC_CLEANUP(mkfifo_perm, tc) +{ + (void)unlink(path); +} + +ATF_TC_WITH_CLEANUP(mkfifo_stat); +ATF_TC_HEAD(mkfifo_stat, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test mkfifo(2) with stat"); +} + +ATF_TC_BODY(mkfifo_stat, tc) +{ + struct stat st; + + support(); + + (void)memset(&st, 0, sizeof(struct stat)); + + ATF_REQUIRE(mkfifo(path, 0600) == 0); + ATF_REQUIRE(stat(path, &st) == 0); + + if (S_ISFIFO(st.st_mode) == 0) + atf_tc_fail("invalid mode from mkfifo(2)"); + + ATF_REQUIRE(unlink(path) == 0); +} + +ATF_TC_CLEANUP(mkfifo_stat, tc) +{ + (void)unlink(path); +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, mkfifo_block); + ATF_TP_ADD_TC(tp, mkfifo_err); + ATF_TP_ADD_TC(tp, mkfifo_nonblock); + ATF_TP_ADD_TC(tp, mkfifo_perm); + ATF_TP_ADD_TC(tp, mkfifo_stat); + + return atf_no_error(); +} |
