Add test for close_range adapted from t_closefrom

Author: ricardobranco777

tests/lib/libc/sys/Makefile

@@ -14,6 +14,7 @@ TESTS_C+=		t_chroot
 TESTS_C+=		t_clock_gettime
 TESTS_C+=		t_clock_nanosleep
 TESTS_C+=		t_clone
+TESTS_C+=		t_close_range
 TESTS_C+=		t_connect
 TESTS_C+=		t_dup
 TESTS_C+=		t_eventfd

tests/lib/libc/sys/t_close_range.c

@@ -0,0 +1,236 @@
+/*-
+ * 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>
+
+#include <sys/wait.h>
+
+#include <atf-c.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <unistd.h>
+
+static const char  path[] = "close_range";
+
+ATF_TC_WITH_CLEANUP(close_range_basic);
+ATF_TC_HEAD(close_range_basic, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "A basic test of close_range(2), #1");
+}
+
+ATF_TC_BODY(close_range_basic, tc)
+{
+	int fd, cur1, cur2;
+
+	(void)close_range(STDERR_FILENO + 1, UINT_MAX, 0);
+
+	fd = open(path, O_RDONLY | O_CREAT, 0400);
+	ATF_REQUIRE(fd >= 0);
+
+	cur1 = fcntl(0, F_MAXFD);
+
+	ATF_REQUIRE(cur1 == STDERR_FILENO + 1);
+	ATF_REQUIRE(close_range(cur1, UINT_MAX, 0) == 0);
+
+	cur2 = fcntl(0, F_MAXFD);
+
+	ATF_REQUIRE(cur1 - 1 == cur2);
+	ATF_REQUIRE(close(fd) == -1);
+	ATF_REQUIRE(unlink(path) == 0);
+}
+
+ATF_TC_CLEANUP(close_range_basic, tc)
+{
+	(void)unlink(path);
+}
+
+ATF_TC_WITH_CLEANUP(close_range_buffer);
+ATF_TC_HEAD(close_range_buffer, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "A basic test of close_range(2), #2");
+}
+
+ATF_TC_BODY(close_range_buffer, tc)
+{
+	int buf[16], cur, half;
+	size_t i;
+
+	/*
+	 * Open a buffer of descriptors, close the half of
+	 * these and verify that the result is consistent.
+	 */
+	ATF_REQUIRE(close_range(STDERR_FILENO + 1, UINT_MAX, 0) == 0);
+
+	cur = fcntl(0, F_MAXFD);
+	ATF_REQUIRE(cur == STDERR_FILENO);
+
+	for (i = 0; i < __arraycount(buf); i++) {
+		buf[i] = open(path, O_RDWR | O_CREAT, 0600);
+		ATF_REQUIRE(buf[i] >= 0);
+	}
+
+	cur = fcntl(0, F_MAXFD);
+	ATF_REQUIRE(cur == __arraycount(buf) + STDERR_FILENO);
+
+	half = STDERR_FILENO + __arraycount(buf) / 2;
+	ATF_REQUIRE(close_range(half, UINT_MAX, 0) == 0);
+
+	cur = fcntl(0, F_MAXFD);
+	ATF_REQUIRE(cur == half - 1);
+
+	for (i = 0; i < __arraycount(buf); i++)
+		(void)close(buf[i]);
+}
+
+ATF_TC_CLEANUP(close_range_buffer, tc)
+{
+	(void)unlink(path);
+}
+
+ATF_TC(close_range_err);
+ATF_TC_HEAD(close_range_err, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "Test errors from close_range(2)");
+}
+
+ATF_TC_BODY(close_range_err, tc)
+{
+
+	errno = 0;
+	ATF_REQUIRE_ERRNO(EINVAL, close_range(UINT_MAX, 0, 0) == -1);
+}
+
+ATF_TC(close_range_one);
+ATF_TC_HEAD(close_range_one, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "Test close_range(1, UINT_MAX, 0)");
+}
+
+ATF_TC_BODY(close_range_one, tc)
+{
+	pid_t pid;
+	int sta;
+
+	pid = fork();
+	ATF_REQUIRE(pid >= 0);
+
+	if (pid == 0) {
+
+		if (close_range(1, UINT_MAX, 0) != 0)
+			_exit(10);
+
+		_exit(fcntl(0, F_MAXFD));
+	}
+
+
+	(void)wait(&sta);
+
+	/*
+	 * STDIN_FILENO should still be open; WEXITSTATUS(1) == 0.
+	 */
+	if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != 0)
+		atf_tc_fail("not all descriptors were closed");
+}
+
+ATF_TC_WITH_CLEANUP(close_range_cloexec);
+ATF_TC_HEAD(close_range_cloexec, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "Test close_range(2) with CLOSE_RANGE_CLOEXEC");
+}
+
+ATF_TC_BODY(close_range_cloexec, tc)
+{
+	int fd, cur1, cur2;
+	int flags;
+
+	fd = open(path, O_RDONLY | O_CREAT, 0400);
+	ATF_REQUIRE(fd >= 0);
+
+	flags = fcntl(fd, F_GETFD);
+	ATF_REQUIRE(flags != -1);
+	ATF_REQUIRE(fcntl(fd, F_SETFD, flags | FD_CLOEXEC) != -1);
+
+	cur1 = fcntl(0, F_MAXFD);
+	ATF_REQUIRE(cur1 == STDERR_FILENO + 1);
+	ATF_REQUIRE(close_range(cur1, UINT_MAX, CLOSE_RANGE_CLOEXEC) == 0);
+
+	cur2 = fcntl(0, F_MAXFD);
+	ATF_REQUIRE(cur1 == cur2);
+
+	flags = fcntl(fd, F_GETFD);
+	ATF_REQUIRE(flags != -1);
+	ATF_CHECK((flags & FD_CLOEXEC) != 0);
+
+	ATF_REQUIRE(close(fd) == 0);
+	ATF_REQUIRE(unlink(path) == 0);
+}
+
+ATF_TC_CLEANUP(close_range_cloexec, tc)
+{
+	(void)unlink(path);
+}
+
+ATF_TC_WITH_CLEANUP(close_range_invalid_flag);
+ATF_TC_HEAD(close_range_invalid_flag, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "Test close_range(2) with an invalid flag");
+}
+
+ATF_TC_BODY(close_range_invalid_flag, tc)
+{
+	int cur1, cur2;
+	int unused_flag = 0x40000000;
+
+	cur1 = fcntl(0, F_MAXFD);
+	ATF_REQUIRE(cur1 == STDERR_FILENO);
+
+	errno = 0;
+	ATF_REQUIRE_ERRNO(EINVAL, close_range(STDERR_FILENO + 1, UINT_MAX, unused_flag) == -1);
+
+	cur2 = fcntl(0, F_MAXFD);
+	ATF_REQUIRE(cur1 == cur2);
+}
+
+ATF_TC_CLEANUP(close_range_invalid_flag, tc)
+{
+	(void)unlink(path);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+	ATF_TP_ADD_TC(tp, close_range_basic);
+	ATF_TP_ADD_TC(tp, close_range_buffer);
+	ATF_TP_ADD_TC(tp, close_range_err);
+	ATF_TP_ADD_TC(tp, close_range_one);
+	ATF_TP_ADD_TC(tp, close_range_cloexec);
+	ATF_TP_ADD_TC(tp, close_range_invalid_flag);
+
+	return atf_no_error();
+}