1 files changed, 66 insertions, 0 deletions
diff --git a/src/test/test-tmpfiles.c b/src/test/test-tmpfiles.c
new file mode 100644
index 0000000..b526871
--- /dev/null
+++ b/src/test/test-tmpfiles.c
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "alloc-util.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "format-util.h"
+#include "fs-util.h"
+#include "log.h"
+#include "process-util.h"
+#include "string-util.h"
+#include "tests.h"
+#include "tmpfile-util.h"
+#include "util.h"
+
+int main(int argc, char** argv) {
+        _cleanup_free_ char *cmd = NULL, *cmd2 = NULL, *ans = NULL, *ans2 = NULL, *d = NULL, *tmp = NULL, *line = NULL;
+        _cleanup_close_ int fd = -1, fd2 = -1;
+        const char *p = argv[1] ?: "/tmp";
+        char *pattern;
+
+        test_setup_logging(LOG_DEBUG);
+
+        pattern = strjoina(p, "/systemd-test-XXXXXX");
+
+        fd = open_tmpfile_unlinkable(p, O_RDWR|O_CLOEXEC);
+        assert_se(fd >= 0);
+
+        assert_se(asprintf(&cmd, "ls -l /proc/"PID_FMT"/fd/%d", getpid_cached(), fd) > 0);
+        (void) system(cmd);
+        assert_se(readlink_malloc(cmd + 6, &ans) >= 0);
+        log_debug("link1: %s", ans);
+        assert_se(endswith(ans, " (deleted)"));
+
+        fd2 = mkostemp_safe(pattern);
+        assert_se(fd >= 0);
+        assert_se(unlink(pattern) == 0);
+
+        assert_se(asprintf(&cmd2, "ls -l /proc/"PID_FMT"/fd/%d", getpid_cached(), fd2) > 0);
+        (void) system(cmd2);
+        assert_se(readlink_malloc(cmd2 + 6, &ans2) >= 0);
+        log_debug("link2: %s", ans2);
+        assert_se(endswith(ans2, " (deleted)"));
+
+        pattern = strjoina(p, "/tmpfiles-test");
+        assert_se(tempfn_random(pattern, NULL, &d) >= 0);
+
+        fd = open_tmpfile_linkable(d, O_RDWR|O_CLOEXEC, &tmp);
+        assert_se(fd >= 0);
+        assert_se(write(fd, "foobar\n", 7) == 7);
+
+        assert_se(touch(d) >= 0);
+        assert_se(link_tmpfile(fd, tmp, d) == -EEXIST);
+        assert_se(unlink(d) >= 0);
+        assert_se(link_tmpfile(fd, tmp, d) >= 0);
+
+        assert_se(read_one_line_file(d, &line) >= 0);
+        assert_se(streq(line, "foobar"));
+        assert_se(unlink(d) >= 0);
+
+        return 0;
+}