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-rw-r--r--src/test/test-fd-util.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/src/test/test-fd-util.c b/src/test/test-fd-util.c
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+++ b/src/test/test-fd-util.c
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+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "alloc-util.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "macro.h"
+
+static void test_close_many(void) {
+ int fds[3];
+ char name0[] = "/tmp/test-close-many.XXXXXX";
+ char name1[] = "/tmp/test-close-many.XXXXXX";
+ char name2[] = "/tmp/test-close-many.XXXXXX";
+
+ fds[0] = mkostemp_safe(name0, O_RDWR|O_CLOEXEC);
+ fds[1] = mkostemp_safe(name1, O_RDWR|O_CLOEXEC);
+ fds[2] = mkostemp_safe(name2, O_RDWR|O_CLOEXEC);
+
+ close_many(fds, 2);
+
+ assert_se(fcntl(fds[0], F_GETFD) == -1);
+ assert_se(fcntl(fds[1], F_GETFD) == -1);
+ assert_se(fcntl(fds[2], F_GETFD) >= 0);
+
+ safe_close(fds[2]);
+
+ unlink(name0);
+ unlink(name1);
+ unlink(name2);
+}
+
+static void test_close_nointr(void) {
+ char name[] = "/tmp/test-test-close_nointr.XXXXXX";
+ int fd;
+
+ fd = mkostemp_safe(name, O_RDWR|O_CLOEXEC);
+ assert_se(fd >= 0);
+ assert_se(close_nointr(fd) >= 0);
+ assert_se(close_nointr(fd) < 0);
+
+ unlink(name);
+}
+
+static void test_same_fd(void) {
+ _cleanup_close_pair_ int p[2] = { -1, -1 };
+ _cleanup_close_ int a = -1, b = -1, c = -1;
+
+ assert_se(pipe2(p, O_CLOEXEC) >= 0);
+ assert_se((a = dup(p[0])) >= 0);
+ assert_se((b = open("/dev/null", O_RDONLY|O_CLOEXEC)) >= 0);
+ assert_se((c = dup(a)) >= 0);
+
+ assert_se(same_fd(p[0], p[0]) > 0);
+ assert_se(same_fd(p[1], p[1]) > 0);
+ assert_se(same_fd(a, a) > 0);
+ assert_se(same_fd(b, b) > 0);
+
+ assert_se(same_fd(a, p[0]) > 0);
+ assert_se(same_fd(p[0], a) > 0);
+ assert_se(same_fd(c, p[0]) > 0);
+ assert_se(same_fd(p[0], c) > 0);
+ assert_se(same_fd(a, c) > 0);
+ assert_se(same_fd(c, a) > 0);
+
+ assert_se(same_fd(p[0], p[1]) == 0);
+ assert_se(same_fd(p[1], p[0]) == 0);
+ assert_se(same_fd(p[0], b) == 0);
+ assert_se(same_fd(b, p[0]) == 0);
+ assert_se(same_fd(p[1], a) == 0);
+ assert_se(same_fd(a, p[1]) == 0);
+ assert_se(same_fd(p[1], b) == 0);
+ assert_se(same_fd(b, p[1]) == 0);
+
+ assert_se(same_fd(a, b) == 0);
+ assert_se(same_fd(b, a) == 0);
+}
+
+int main(int argc, char *argv[]) {
+ test_close_many();
+ test_close_nointr();
+ test_same_fd();
+
+ return 0;
+}