5d13a15b1d
Double newlines (i.e. one empty lines) are great to structure code. But let's avoid triple newlines (i.e. two empty lines), quadruple newlines, quintuple newlines, …, that's just spurious whitespace. It's an easy way to drop 121 lines of code, and keeps the coding style of our sources a bit tigther.
90 lines
2.8 KiB
C
90 lines
2.8 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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***/
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#include <fcntl.h>
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#include <linux/magic.h>
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#include <unistd.h>
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#include "alloc-util.h"
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#include "fd-util.h"
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#include "fileio.h"
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#include "macro.h"
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#include "missing.h"
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#include "mount-util.h"
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#include "stat-util.h"
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static void test_files_same(void) {
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_cleanup_close_ int fd = -1;
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char name[] = "/tmp/test-files_same.XXXXXX";
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char name_alias[] = "/tmp/test-files_same.alias";
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fd = mkostemp_safe(name);
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assert_se(fd >= 0);
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assert_se(symlink(name, name_alias) >= 0);
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assert_se(files_same(name, name, 0));
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assert_se(files_same(name, name, AT_SYMLINK_NOFOLLOW));
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assert_se(files_same(name, name_alias, 0));
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assert_se(!files_same(name, name_alias, AT_SYMLINK_NOFOLLOW));
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unlink(name);
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unlink(name_alias);
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}
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static void test_is_symlink(void) {
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char name[] = "/tmp/test-is_symlink.XXXXXX";
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char name_link[] = "/tmp/test-is_symlink.link";
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_cleanup_close_ int fd = -1;
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fd = mkostemp_safe(name);
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assert_se(fd >= 0);
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assert_se(symlink(name, name_link) >= 0);
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assert_se(is_symlink(name) == 0);
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assert_se(is_symlink(name_link) == 1);
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assert_se(is_symlink("/a/file/which/does/not/exist/i/guess") < 0);
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unlink(name);
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unlink(name_link);
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}
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static void test_path_is_os_tree(void) {
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assert_se(path_is_os_tree("/") > 0);
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assert_se(path_is_os_tree("/etc") == 0);
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assert_se(path_is_os_tree("/idontexist") == -ENOENT);
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}
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static void test_path_is_fs_type(void) {
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/* run might not be a mount point in build chroots */
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if (path_is_mount_point("/run", NULL, AT_SYMLINK_FOLLOW) > 0) {
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assert_se(path_is_fs_type("/run", TMPFS_MAGIC) > 0);
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assert_se(path_is_fs_type("/run", BTRFS_SUPER_MAGIC) == 0);
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}
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assert_se(path_is_fs_type("/proc", PROC_SUPER_MAGIC) > 0);
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assert_se(path_is_fs_type("/proc", BTRFS_SUPER_MAGIC) == 0);
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assert_se(path_is_fs_type("/proc", BTRFS_SUPER_MAGIC) == 0);
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assert_se(path_is_fs_type("/i-dont-exist", BTRFS_SUPER_MAGIC) == -ENOENT);
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}
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static void test_path_is_temporary_fs(void) {
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/* run might not be a mount point in build chroots */
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if (path_is_mount_point("/run", NULL, AT_SYMLINK_FOLLOW) > 0)
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assert_se(path_is_temporary_fs("/run") > 0);
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assert_se(path_is_temporary_fs("/proc") == 0);
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assert_se(path_is_temporary_fs("/i-dont-exist") == -ENOENT);
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}
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int main(int argc, char *argv[]) {
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test_files_same();
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test_is_symlink();
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test_path_is_os_tree();
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test_path_is_fs_type();
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test_path_is_temporary_fs();
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return 0;
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}
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