Line data    Source code

       1             : /* SPDX-License-Identifier: LGPL-2.1+ */
       2             : 
       3             : #include <fcntl.h>
       4             : #include <stdio.h>
       5             : #include <stdlib.h>
       6             : #include <unistd.h>
       7             : 
       8             : #include "alloc-util.h"
       9             : #include "fd-util.h"
      10             : #include "fileio.h"
      11             : #include "format-util.h"
      12             : #include "fs-util.h"
      13             : #include "log.h"
      14             : #include "process-util.h"
      15             : #include "string-util.h"
      16             : #include "tests.h"
      17             : #include "tmpfile-util.h"
      18             : #include "util.h"
      19             : 
      20           1 : int main(int argc, char** argv) {
      21           1 :         _cleanup_free_ char *cmd = NULL, *cmd2 = NULL, *ans = NULL, *ans2 = NULL, *d = NULL, *tmp = NULL, *line = NULL;
      22           1 :         _cleanup_close_ int fd = -1, fd2 = -1;
      23           1 :         const char *p = argv[1] ?: "/tmp";
      24             :         char *pattern;
      25             : 
      26           1 :         test_setup_logging(LOG_DEBUG);
      27             : 
      28           5 :         pattern = strjoina(p, "/systemd-test-XXXXXX");
      29             : 
      30           1 :         fd = open_tmpfile_unlinkable(p, O_RDWR|O_CLOEXEC);
      31           1 :         assert_se(fd >= 0);
      32             : 
      33           1 :         assert_se(asprintf(&cmd, "ls -l /proc/"PID_FMT"/fd/%d", getpid_cached(), fd) > 0);
      34           1 :         (void) system(cmd);
      35           1 :         assert_se(readlink_malloc(cmd + 6, &ans) >= 0);
      36           1 :         log_debug("link1: %s", ans);
      37           1 :         assert_se(endswith(ans, " (deleted)"));
      38             : 
      39           1 :         fd2 = mkostemp_safe(pattern);
      40           1 :         assert_se(fd >= 0);
      41           1 :         assert_se(unlink(pattern) == 0);
      42             : 
      43           1 :         assert_se(asprintf(&cmd2, "ls -l /proc/"PID_FMT"/fd/%d", getpid_cached(), fd2) > 0);
      44           1 :         (void) system(cmd2);
      45           1 :         assert_se(readlink_malloc(cmd2 + 6, &ans2) >= 0);
      46           1 :         log_debug("link2: %s", ans2);
      47           1 :         assert_se(endswith(ans2, " (deleted)"));
      48             : 
      49           5 :         pattern = strjoina(p, "/tmpfiles-test");
      50           1 :         assert_se(tempfn_random(pattern, NULL, &d) >= 0);
      51             : 
      52           1 :         fd = open_tmpfile_linkable(d, O_RDWR|O_CLOEXEC, &tmp);
      53           1 :         assert_se(fd >= 0);
      54           1 :         assert_se(write(fd, "foobar\n", 7) == 7);
      55             : 
      56           1 :         assert_se(touch(d) >= 0);
      57           1 :         assert_se(link_tmpfile(fd, tmp, d) == -EEXIST);
      58           1 :         assert_se(unlink(d) >= 0);
      59           1 :         assert_se(link_tmpfile(fd, tmp, d) >= 0);
      60             : 
      61           1 :         assert_se(read_one_line_file(d, &line) >= 0);
      62           1 :         assert_se(streq(line, "foobar"));
      63           1 :         assert_se(unlink(d) >= 0);
      64             : 
      65           1 :         return 0;
      66             : }