src/test/test-stat-util.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2010 Lennart Poettering
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include <fcntl.h>
  21 #include <linux/magic.h>
  22 #include <unistd.h>
  23
  24 #include "alloc-util.h"
  25 #include "fd-util.h"
  26 #include "fileio.h"
  27 #include "macro.h"
  28 #include "missing.h"
  29 #include "stat-util.h"
  30
  31 static void test_files_same(void) {
  32         _cleanup_close_ int fd = -1;
  33         char name[] = "/tmp/test-files_same.XXXXXX";
  34         char name_alias[] = "/tmp/test-files_same.alias";
  35
  36         fd = mkostemp_safe(name);
  37         assert_se(fd >= 0);
  38         assert_se(symlink(name, name_alias) >= 0);
  39
  40         assert_se(files_same(name, name));
  41         assert_se(files_same(name, name_alias));
  42
  43         unlink(name);
  44         unlink(name_alias);
  45 }
  46
  47 static void test_is_symlink(void) {
  48         char name[] = "/tmp/test-is_symlink.XXXXXX";
  49         char name_link[] = "/tmp/test-is_symlink.link";
  50         _cleanup_close_ int fd = -1;
  51
  52         fd = mkostemp_safe(name);
  53         assert_se(fd >= 0);
  54         assert_se(symlink(name, name_link) >= 0);
  55
  56         assert_se(is_symlink(name) == 0);
  57         assert_se(is_symlink(name_link) == 1);
  58         assert_se(is_symlink("/a/file/which/does/not/exist/i/guess") < 0);
  59
  60
  61         unlink(name);
  62         unlink(name_link);
  63 }
  64
  65 static void test_path_is_os_tree(void) {
  66         assert_se(path_is_os_tree("/") > 0);
  67         assert_se(path_is_os_tree("/etc") == 0);
  68         assert_se(path_is_os_tree("/idontexist") == -ENOENT);
  69 }
  70
  71 static void test_path_check_fstype(void) {
  72         assert_se(path_check_fstype("/run", TMPFS_MAGIC) > 0);
  73         assert_se(path_check_fstype("/run", BTRFS_SUPER_MAGIC) == 0);
  74         assert_se(path_check_fstype("/proc", PROC_SUPER_MAGIC) > 0);
  75         assert_se(path_check_fstype("/proc", BTRFS_SUPER_MAGIC) == 0);
  76         assert_se(path_check_fstype("/proc", BTRFS_SUPER_MAGIC) == 0);
  77         assert_se(path_check_fstype("/i-dont-exist", BTRFS_SUPER_MAGIC) == -ENOENT);
  78 }
  79
  80 static void test_path_is_temporary_fs(void) {
  81         assert_se(path_is_temporary_fs("/run") > 0);
  82         assert_se(path_is_temporary_fs("/proc") == 0);
  83         assert_se(path_is_temporary_fs("/i-dont-exist") == -ENOENT);
  84 }
  85
  86 int main(int argc, char *argv[]) {
  87         test_files_same();
  88         test_is_symlink();
  89         test_path_is_os_tree();
  90         test_path_check_fstype();
  91         test_path_is_temporary_fs();
  92
  93         return 0;
  94 }