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authorjhb <jhb@FreeBSD.org>2008-01-16 15:51:24 +0000
committerjhb <jhb@FreeBSD.org>2008-01-16 15:51:24 +0000
commit52da96d26e831fdfeffe482b1bce11ded72830d2 (patch)
treed961c0507e4797d70ea3c11f1336a64b9a69e572 /tools
parent3d6e2998f35479791a322b39cb47193f778cf288 (diff)
downloadFreeBSD-src-52da96d26e831fdfeffe482b1bce11ded72830d2.zip
FreeBSD-src-52da96d26e831fdfeffe482b1bce11ded72830d2.tar.gz
Add a set of regression tests for the POSIX shm API (shm_open(2) and
shm_unlink(2)).
Diffstat (limited to 'tools')
-rw-r--r--tools/regression/posixshm/Makefile9
-rw-r--r--tools/regression/posixshm/posixshm.c627
-rw-r--r--tools/regression/posixshm/posixshm.t5
-rw-r--r--tools/regression/posixshm/test.c128
-rw-r--r--tools/regression/posixshm/test.h59
5 files changed, 828 insertions, 0 deletions
diff --git a/tools/regression/posixshm/Makefile b/tools/regression/posixshm/Makefile
new file mode 100644
index 0000000..1737b5b
--- /dev/null
+++ b/tools/regression/posixshm/Makefile
@@ -0,0 +1,9 @@
+# $FreeBSD$
+
+PROG= posixshm
+SRCS= posixshm.c test.c
+NO_MAN=
+
+WARNS?= 3
+
+.include <bsd.prog.mk>
diff --git a/tools/regression/posixshm/posixshm.c b/tools/regression/posixshm/posixshm.c
new file mode 100644
index 0000000..6f4c306
--- /dev/null
+++ b/tools/regression/posixshm/posixshm.c
@@ -0,0 +1,627 @@
+/*-
+ * Copyright (c) 2006 Robert N. M. Watson
+ * All rights reserved.
+ *
+ * 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 AUTHOR 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 AUTHOR 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>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/mman.h>
+#include <sys/resource.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/wait.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "test.h"
+
+#define TEST_PATH "/tmp/posixshm_regression_test"
+
+/*
+ * Attempt a shm_open() that should fail with an expected error of 'error'.
+ */
+static void
+shm_open_should_fail(const char *path, int flags, mode_t mode, int error)
+{
+ int fd;
+
+ fd = shm_open(path, flags, mode);
+ if (fd >= 0) {
+ fail_err("shm_open() didn't fail");
+ close(fd);
+ return;
+ }
+ if (errno != error) {
+ fail_errno("shm_open");
+ return;
+ }
+ pass();
+}
+
+/*
+ * Attempt a shm_unlink() that should fail with an expected error of 'error'.
+ */
+static void
+shm_unlink_should_fail(const char *path, int error)
+{
+
+ if (shm_unlink(path) >= 0) {
+ fail_err("shm_unlink() didn't fail");
+ return;
+ }
+ if (errno != error) {
+ fail_errno("shm_unlink");
+ return;
+ }
+ pass();
+}
+
+/*
+ * Open the test object and write '1' to the first byte. Returns valid fd
+ * on success and -1 on failure.
+ */
+static int
+scribble_object(void)
+{
+ char *page;
+ int fd;
+
+ fd = shm_open(TEST_PATH, O_CREAT | O_EXCL | O_RDWR, 0777);
+ if (fd < 0 && errno == EEXIST) {
+ if (shm_unlink(TEST_PATH) < 0) {
+ fail_errno("shm_unlink");
+ return (-1);
+ }
+ fd = shm_open(TEST_PATH, O_CREAT | O_EXCL | O_RDWR, 0777);
+ }
+ if (fd < 0) {
+ fail_errno("shm_open");
+ return (-1);
+ }
+ if (ftruncate(fd, getpagesize()) < 0) {
+ fail_errno("ftruncate");
+ close(fd);
+ shm_unlink(TEST_PATH);
+ return (-1);
+ }
+
+ page = mmap(0, getpagesize(), PROT_READ | PROT_WRITE, MAP_SHARED, fd,
+ 0);
+ if (page == MAP_FAILED) {
+ fail_errno("mmap");
+ close(fd);
+ shm_unlink(TEST_PATH);
+ return (-1);
+ }
+
+ page[0] = '1';
+
+ if (munmap(page, getpagesize()) < 0) {
+ fail_errno("munmap");
+ close(fd);
+ shm_unlink(TEST_PATH);
+ return (-1);
+ }
+
+ return (fd);
+}
+
+static void
+remap_object(void)
+{
+ char *page;
+ int fd;
+
+ fd = scribble_object();
+ if (fd < 0)
+ return;
+
+ page = mmap(0, getpagesize(), PROT_READ | PROT_WRITE, MAP_SHARED, fd,
+ 0);
+ if (page == MAP_FAILED) {
+ fail_errno("mmap(2)");
+ close(fd);
+ shm_unlink(TEST_PATH);
+ return;
+ }
+
+ if (page[0] != '1') {
+ fail_err("missing data");
+ close(fd);
+ shm_unlink(TEST_PATH);
+ return;
+ }
+
+ close(fd);
+ if (munmap(page, getpagesize()) < 0) {
+ fail_errno("munmap");
+ shm_unlink(TEST_PATH);
+ return;
+ }
+
+ if (shm_unlink(TEST_PATH) < 0) {
+ fail_errno("shm_unlink");
+ return;
+ }
+
+ pass();
+}
+TEST(remap_object, "remap object");
+
+static void
+reopen_object(void)
+{
+ char *page;
+ int fd;
+
+ fd = scribble_object();
+ if (fd < 0)
+ return;
+ close(fd);
+
+ fd = shm_open(TEST_PATH, O_RDONLY, 0777);
+ if (fd < 0) {
+ fail_errno("shm_open(2)");
+ shm_unlink(TEST_PATH);
+ return;
+ }
+ page = mmap(0, getpagesize(), PROT_READ, MAP_SHARED, fd, 0);
+ if (page == MAP_FAILED) {
+ fail_errno("mmap(2)");
+ close(fd);
+ shm_unlink(TEST_PATH);
+ return;
+ }
+
+ if (page[0] != '1') {
+ fail_err("missing data");
+ munmap(page, getpagesize());
+ close(fd);
+ shm_unlink(TEST_PATH);
+ return;
+ }
+
+ munmap(page, getpagesize());
+ close(fd);
+ shm_unlink(TEST_PATH);
+ pass();
+}
+TEST(reopen_object, "reopen object");
+
+static void
+readonly_mmap_write(void)
+{
+ char *page;
+ int fd;
+
+ fd = shm_open(TEST_PATH, O_RDONLY | O_CREAT, 0777);
+ if (fd < 0) {
+ fail_errno("shm_open");
+ return;
+ }
+
+ /* PROT_WRITE should fail with EACCES. */
+ page = mmap(0, getpagesize(), PROT_READ | PROT_WRITE, MAP_SHARED, fd,
+ 0);
+ if (page != MAP_FAILED) {
+ fail_err("mmap(PROT_WRITE) succeeded");
+ munmap(page, getpagesize());
+ close(fd);
+ shm_unlink(TEST_PATH);
+ return;
+ }
+ if (errno != EACCES) {
+ fail_errno("mmap");
+ close(fd);
+ shm_unlink(TEST_PATH);
+ return;
+ }
+
+ close(fd);
+ shm_unlink(TEST_PATH);
+ pass();
+}
+TEST(readonly_mmap_write, "RDONLY object");
+
+static void
+open_after_unlink(void)
+{
+ int fd;
+
+ fd = shm_open(TEST_PATH, O_RDONLY | O_CREAT, 0777);
+ if (fd < 0) {
+ fail_errno("shm_open(1)");
+ return;
+ }
+ close(fd);
+
+ if (shm_unlink(TEST_PATH) < 0) {
+ fail_errno("shm_unlink");
+ return;
+ }
+
+ shm_open_should_fail(TEST_PATH, O_RDONLY, 0777, ENOENT);
+}
+TEST(open_after_unlink, "open after unlink");
+
+static void
+open_invalid_path(void)
+{
+
+ shm_open_should_fail("blah", O_RDONLY, 0777, EINVAL);
+}
+TEST(open_invalid_path, "open invalid path");
+
+static void
+open_write_only(void)
+{
+
+ shm_open_should_fail(TEST_PATH, O_WRONLY, 0777, EINVAL);
+}
+TEST(open_write_only, "open with O_WRONLY");
+
+static void
+open_extra_flags(void)
+{
+
+ shm_open_should_fail(TEST_PATH, O_RDONLY | O_DIRECT, 0777, EINVAL);
+}
+TEST(open_extra_flags, "open with extra flags");
+
+static void
+open_anon(void)
+{
+ int fd;
+
+ fd = shm_open(SHM_ANON, O_RDWR, 0777);
+ if (fd < 0) {
+ fail_errno("shm_open");
+ return;
+ }
+ close(fd);
+ pass();
+}
+TEST(open_anon, "open anonymous object");
+
+static void
+open_anon_readonly(void)
+{
+
+ shm_open_should_fail(SHM_ANON, O_RDONLY, 0777, EINVAL);
+}
+TEST(open_anon_readonly, "open SHM_ANON with O_RDONLY");
+
+static void
+open_bad_path_pointer(void)
+{
+
+ shm_open_should_fail((char *)1024, O_RDONLY, 0777, EFAULT);
+}
+TEST(open_bad_path_pointer, "open bad path pointer");
+
+static void
+open_path_too_long(void)
+{
+ char *page;
+
+ page = malloc(MAXPATHLEN + 1);
+ memset(page, 'a', MAXPATHLEN);
+ page[MAXPATHLEN] = '\0';
+ shm_open_should_fail(page, O_RDONLY, 0777, ENAMETOOLONG);
+ free(page);
+}
+TEST(open_path_too_long, "open pathname too long");
+
+static void
+open_nonexisting_object(void)
+{
+
+ shm_open_should_fail("/notreallythere", O_RDONLY, 0777, ENOENT);
+}
+TEST(open_nonexisting_object, "open nonexistent object");
+
+static void
+exclusive_create_existing_object(void)
+{
+ int fd;
+
+ fd = shm_open("/tmp/notreallythere", O_RDONLY | O_CREAT, 0777);
+ if (fd < 0) {
+ fail_errno("shm_open(O_CREAT)");
+ return;
+ }
+ close(fd);
+
+ shm_open_should_fail("/tmp/notreallythere", O_RDONLY | O_CREAT | O_EXCL,
+ 0777, EEXIST);
+
+ shm_unlink("/tmp/notreallythere");
+}
+TEST(exclusive_create_existing_object, "O_EXCL of existing object");
+
+static void
+trunc_resets_object(void)
+{
+ struct stat sb;
+ int fd;
+
+ /* Create object and set size to 1024. */
+ fd = shm_open(TEST_PATH, O_RDWR | O_CREAT, 0777);
+ if (fd < 0) {
+ fail_errno("shm_open(1)");
+ return;
+ }
+ if (ftruncate(fd, 1024) < 0) {
+ fail_errno("ftruncate");
+ close(fd);
+ return;
+ }
+ if (fstat(fd, &sb) < 0) {
+ fail_errno("fstat(1)");
+ close(fd);
+ return;
+ }
+ if (sb.st_size != 1024) {
+ fail_err("size %d != 1024", (int)sb.st_size);
+ close(fd);
+ return;
+ }
+ close(fd);
+
+ /* Open with O_TRUNC which should reset size to 0. */
+ fd = shm_open(TEST_PATH, O_RDWR | O_TRUNC, 0777);
+ if (fd < 0) {
+ fail_errno("shm_open(2)");
+ return;
+ }
+ if (fstat(fd, &sb) < 0) {
+ fail_errno("fstat(2)");
+ close(fd);
+ return;
+ }
+ if (sb.st_size != 0) {
+ fail_err("size after O_TRUNC %d != 0", (int)sb.st_size);
+ close(fd);
+ return;
+ }
+ close(fd);
+ if (shm_unlink(TEST_PATH) < 0) {
+ fail_errno("shm_unlink");
+ return;
+ }
+ pass();
+}
+TEST(trunc_resets_object, "O_TRUNC resets size");
+
+static void
+unlink_bad_path_pointer(void)
+{
+
+ shm_unlink_should_fail((char *)1024, EFAULT);
+}
+TEST(unlink_bad_path_pointer, "unlink bad path pointer");
+
+static void
+unlink_path_too_long(void)
+{
+ char *page;
+
+ page = malloc(MAXPATHLEN + 1);
+ memset(page, 'a', MAXPATHLEN);
+ page[MAXPATHLEN] = '\0';
+ shm_unlink_should_fail(page, ENAMETOOLONG);
+ free(page);
+}
+TEST(unlink_path_too_long, "unlink pathname too long");
+
+static void
+test_object_resize(void)
+{
+ pid_t pid;
+ struct stat sb;
+ char *page;
+ int fd, status;
+
+ /* Start off with a size of a single page. */
+ fd = shm_open(SHM_ANON, O_CREAT | O_RDWR, 0777);
+ if (fd < 0) {
+ fail_errno("shm_open");
+ return;
+ }
+ if (ftruncate(fd, getpagesize()) < 0) {
+ fail_errno("ftruncate(1)");
+ close(fd);
+ return;
+ }
+ if (fstat(fd, &sb) < 0) {
+ fail_errno("fstat(1)");
+ close(fd);
+ return;
+ }
+ if (sb.st_size != getpagesize()) {
+ fail_err("first resize failed");
+ close(fd);
+ return;
+ }
+
+ /* Write a '1' to the first byte. */
+ page = mmap(0, getpagesize(), PROT_READ | PROT_WRITE, MAP_SHARED, fd,
+ 0);
+ if (page == MAP_FAILED) {
+ fail_errno("mmap(1)");
+ close(fd);
+ return;
+ }
+
+ page[0] = '1';
+
+ if (munmap(page, getpagesize()) < 0) {
+ fail_errno("munmap(1)");
+ close(fd);
+ return;
+ }
+
+ /* Grow the object to 2 pages. */
+ if (ftruncate(fd, getpagesize() * 2) < 0) {
+ fail_errno("ftruncate(2)");
+ close(fd);
+ return;
+ }
+ if (fstat(fd, &sb) < 0) {
+ fail_errno("fstat(2)");
+ close(fd);
+ return;
+ }
+ if (sb.st_size != getpagesize() * 2) {
+ fail_err("second resize failed");
+ close(fd);
+ return;
+ }
+
+ /* Check for '1' at the first byte. */
+ page = mmap(0, getpagesize() * 2, PROT_READ | PROT_WRITE, MAP_SHARED,
+ fd, 0);
+ if (page == MAP_FAILED) {
+ fail_errno("mmap(2)");
+ close(fd);
+ return;
+ }
+
+ if (page[0] != '1') {
+ fail_err("missing data at 0");
+ close(fd);
+ return;
+ }
+
+ /* Write a '2' at the start of the second page. */
+ page[getpagesize()] = '2';
+
+ /* Shrink the object back to 1 page. */
+ if (ftruncate(fd, getpagesize()) < 0) {
+ fail_errno("ftruncate(3)");
+ close(fd);
+ return;
+ }
+ if (fstat(fd, &sb) < 0) {
+ fail_errno("fstat(3)");
+ close(fd);
+ return;
+ }
+ if (sb.st_size != getpagesize()) {
+ fail_err("third resize failed");
+ close(fd);
+ return;
+ }
+
+ /*
+ * Fork a child process to make sure the second page is no
+ * longer valid.
+ */
+ pid = fork();
+ if (pid < 0) {
+ fail_errno("fork");
+ close(fd);
+ return;
+ }
+
+ if (pid == 0) {
+ struct rlimit lim;
+ char c;
+
+ /* Don't generate a core dump. */
+ getrlimit(RLIMIT_CORE, &lim);
+ lim.rlim_cur = 0;
+ setrlimit(RLIMIT_CORE, &lim);
+
+ /*
+ * The previous ftruncate(2) shrunk the backing object
+ * so that this address is no longer valid, so reading
+ * from it should trigger a SIGSEGV.
+ */
+ c = page[getpagesize()];
+ fprintf(stderr, "child: page 1: '%c'\n", c);
+ exit(0);
+ }
+ if (wait(&status) < 0) {
+ fail_errno("wait");
+ close(fd);
+ return;
+ }
+ if (!WIFSIGNALED(status) || WTERMSIG(status) != SIGSEGV) {
+ fail_err("child terminated with status %x", status);
+ close(fd);
+ return;
+ }
+
+ /* Grow the object back to 2 pages. */
+ if (ftruncate(fd, getpagesize() * 2) < 0) {
+ fail_errno("ftruncate(4)");
+ close(fd);
+ return;
+ }
+ if (fstat(fd, &sb) < 0) {
+ fail_errno("fstat(4)");
+ close(fd);
+ return;
+ }
+ if (sb.st_size != getpagesize() * 2) {
+ fail_err("second resize failed");
+ close(fd);
+ return;
+ }
+
+ /*
+ * Note that the mapping at 'page' for the second page is
+ * still valid, and now that the shm object has been grown
+ * back up to 2 pages, there is now memory backing this page
+ * so the read will work. However, the data should be zero
+ * rather than '2' as the old data was thrown away when the
+ * object was shrunk and the new pages when an object are
+ * grown are zero-filled.
+ */
+ if (page[getpagesize()] != 0) {
+ fail_err("invalid data at %d", getpagesize());
+ close(fd);
+ return;
+ }
+
+ close(fd);
+ pass();
+}
+TEST(test_object_resize, "object resize");
+
+int
+main(int argc, char *argv[])
+{
+
+ run_tests();
+ return (0);
+}
diff --git a/tools/regression/posixshm/posixshm.t b/tools/regression/posixshm/posixshm.t
new file mode 100644
index 0000000..a2159ac
--- /dev/null
+++ b/tools/regression/posixshm/posixshm.t
@@ -0,0 +1,5 @@
+#!/bin/sh
+#
+# $FreeBSD$
+
+./posixshm
diff --git a/tools/regression/posixshm/test.c b/tools/regression/posixshm/test.c
new file mode 100644
index 0000000..16a56e9
--- /dev/null
+++ b/tools/regression/posixshm/test.c
@@ -0,0 +1,128 @@
+/*-
+ * Copyright (c) 2008 Yahoo!, Inc.
+ * All rights reserved.
+ * Written by: John Baldwin <jhb@FreeBSD.org>
+ *
+ * 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.
+ * 3. Neither the name of the author nor the names of any co-contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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>
+__FBSDID("$FreeBSD$");
+
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "test.h"
+
+static int test_index;
+static struct regression_test *test;
+static int test_acknowleged;
+
+SET_DECLARE(regression_tests_set, struct regression_test);
+
+/*
+ * Outputs a test summary of the following:
+ *
+ * <status> <test #> [name] [# <fmt> [fmt args]]
+ */
+static void
+vprint_status(const char *status, const char *fmt, va_list ap)
+{
+
+ printf("%s %d", status, test_index);
+ if (test->rt_name)
+ printf(" - %s", test->rt_name);
+ if (fmt) {
+ printf(" # ");
+ vprintf(fmt, ap);
+ }
+ printf("\n");
+ test_acknowleged = 1;
+}
+
+static void
+print_status(const char *status, const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ vprint_status(status, fmt, ap);
+ va_end(ap);
+}
+
+void
+pass(void)
+{
+
+ print_status("ok", NULL);
+}
+
+void
+fail(void)
+{
+
+ print_status("not ok", NULL);
+}
+
+void
+fail_err(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ vprint_status("not ok", fmt, ap);
+ va_end(ap);
+}
+
+void
+skip(const char *reason)
+{
+
+ print_status("ok", "skip %s", reason);
+}
+
+void
+todo(const char *reason)
+{
+
+ print_status("not ok", "TODO %s", reason);
+}
+
+void
+run_tests(void)
+{
+ struct regression_test **testp;
+
+ printf("1..%d\n", SET_COUNT(regression_tests_set));
+ test_index = 1;
+ SET_FOREACH(testp, regression_tests_set) {
+ test_acknowleged = 0;
+ test = *testp;
+ test->rt_function();
+ if (!test_acknowleged)
+ print_status("not ok", "unknown status");
+ test_index++;
+ }
+}
diff --git a/tools/regression/posixshm/test.h b/tools/regression/posixshm/test.h
new file mode 100644
index 0000000..505679b
--- /dev/null
+++ b/tools/regression/posixshm/test.h
@@ -0,0 +1,59 @@
+/*-
+ * Copyright (c) 2008 Yahoo!, Inc.
+ * All rights reserved.
+ * Written by: John Baldwin <jhb@FreeBSD.org>
+ *
+ * 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.
+ * 3. Neither the name of the author nor the names of any co-contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef __TEST_H__
+#define __TEST_H__
+
+#include <sys/linker_set.h>
+
+struct regression_test {
+ void (*rt_function)(void);
+ const char *rt_name;
+};
+
+#define TEST(function, name) \
+ static struct regression_test _regtest_##function = { \
+ (function), \
+ (name) \
+ }; \
+ DATA_SET(regression_tests_set, _regtest_##function)
+
+void fail(void);
+void fail_err(const char *fmt, ...);
+void pass(void);
+void run_tests(void);
+void skip(const char *reason);
+void todo(const char *reason);
+
+#define fail_errno(tag) fail_err("%s: %s", (tag), strerror(errno))
+
+#endif /* !__TEST_H__ */
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