--- /dev/null
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Zbigniew Jędrzejewski-Szmek
+
+ 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 <stdio.h>
+#include <sys/mount.h>
+#include <unistd.h>
+
+#include "alloc-util.h"
+#include "fd-util.h"
+#include "macro.h"
+#include "mount-util.h"
+#include "path-util.h"
+#include "rm-rf.h"
+#include "string-util.h"
+#include "strv.h"
+#include "util.h"
+
+#define test_path_compare(a, b, result) { \
+ assert_se(path_compare(a, b) == result); \
+ assert_se(path_compare(b, a) == -result); \
+ assert_se(path_equal(a, b) == !result); \
+ assert_se(path_equal(b, a) == !result); \
+ }
+
+static void test_path(void) {
+ _cleanup_close_ int fd = -1;
+
+ test_path_compare("/goo", "/goo", 0);
+ test_path_compare("/goo", "/goo", 0);
+ test_path_compare("//goo", "/goo", 0);
+ test_path_compare("//goo/////", "/goo", 0);
+ test_path_compare("goo/////", "goo", 0);
+
+ test_path_compare("/goo/boo", "/goo//boo", 0);
+ test_path_compare("//goo/boo", "/goo/boo//", 0);
+
+ test_path_compare("/", "///", 0);
+
+ test_path_compare("/x", "x/", 1);
+ test_path_compare("x/", "/", -1);
+
+ test_path_compare("/x/./y", "x/y", 1);
+ test_path_compare("x/.y", "x/y", -1);
+
+ test_path_compare("foo", "/foo", -1);
+ test_path_compare("/foo", "/foo/bar", -1);
+ test_path_compare("/foo/aaa", "/foo/b", -1);
+ test_path_compare("/foo/aaa", "/foo/b/a", -1);
+ test_path_compare("/foo/a", "/foo/aaa", -1);
+ test_path_compare("/foo/a/b", "/foo/aaa", -1);
+
+ assert_se(path_is_absolute("/"));
+ assert_se(!path_is_absolute("./"));
+
+ assert_se(is_path("/dir"));
+ assert_se(is_path("a/b"));
+ assert_se(!is_path("."));
+
+ assert_se(streq(basename("./aa/bb/../file.da."), "file.da."));
+ assert_se(streq(basename("/aa///.file"), ".file"));
+ assert_se(streq(basename("/aa///file..."), "file..."));
+ assert_se(streq(basename("file.../"), ""));
+
+ fd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY|O_NOCTTY);
+ assert_se(fd >= 0);
+ assert_se(fd_is_mount_point(fd, "/", 0) > 0);
+
+ {
+ char p1[] = "aaa/bbb////ccc";
+ char p2[] = "//aaa/.////ccc";
+ char p3[] = "/./";
+
+ assert_se(path_equal(path_kill_slashes(p1), "aaa/bbb/ccc"));
+ assert_se(path_equal(path_kill_slashes(p2), "/aaa/./ccc"));
+ assert_se(path_equal(path_kill_slashes(p3), "/./"));
+ }
+
+ assert_se(PATH_IN_SET("/bin", "/", "/bin", "/foo"));
+ assert_se(PATH_IN_SET("/bin", "/bin"));
+ assert_se(PATH_IN_SET("/bin", "/foo/bar", "/bin"));
+ assert_se(PATH_IN_SET("/", "/", "/", "/foo/bar"));
+ assert_se(!PATH_IN_SET("/", "/abc", "/def"));
+
+ assert_se(path_equal_ptr(NULL, NULL));
+ assert_se(path_equal_ptr("/a", "/a"));
+ assert_se(!path_equal_ptr("/a", "/b"));
+ assert_se(!path_equal_ptr("/a", NULL));
+ assert_se(!path_equal_ptr(NULL, "/a"));
+}
+
+static void test_find_binary(const char *self) {
+ char *p;
+
+ assert_se(find_binary("/bin/sh", &p) == 0);
+ puts(p);
+ assert_se(path_equal(p, "/bin/sh"));
+ free(p);
+
+ assert_se(find_binary(self, &p) == 0);
+ puts(p);
+ /* libtool might prefix the binary name with "lt-" */
+ assert_se(endswith(p, "/lt-test-path-util") || endswith(p, "/test-path-util"));
+ assert_se(path_is_absolute(p));
+ free(p);
+
+ assert_se(find_binary("sh", &p) == 0);
+ puts(p);
+ assert_se(endswith(p, "/sh"));
+ assert_se(path_is_absolute(p));
+ free(p);
+
+ assert_se(find_binary("xxxx-xxxx", &p) == -ENOENT);
+ assert_se(find_binary("/some/dir/xxxx-xxxx", &p) == -ENOENT);
+}
+
+static void test_prefixes(void) {
+ static const char* values[] = { "/a/b/c/d", "/a/b/c", "/a/b", "/a", "", NULL};
+ unsigned i;
+ char s[PATH_MAX];
+ bool b;
+
+ i = 0;
+ PATH_FOREACH_PREFIX_MORE(s, "/a/b/c/d") {
+ log_error("---%s---", s);
+ assert_se(streq(s, values[i++]));
+ }
+ assert_se(values[i] == NULL);
+
+ i = 1;
+ PATH_FOREACH_PREFIX(s, "/a/b/c/d") {
+ log_error("---%s---", s);
+ assert_se(streq(s, values[i++]));
+ }
+ assert_se(values[i] == NULL);
+
+ i = 0;
+ PATH_FOREACH_PREFIX_MORE(s, "////a////b////c///d///////")
+ assert_se(streq(s, values[i++]));
+ assert_se(values[i] == NULL);
+
+ i = 1;
+ PATH_FOREACH_PREFIX(s, "////a////b////c///d///////")
+ assert_se(streq(s, values[i++]));
+ assert_se(values[i] == NULL);
+
+ PATH_FOREACH_PREFIX(s, "////")
+ assert_not_reached("Wut?");
+
+ b = false;
+ PATH_FOREACH_PREFIX_MORE(s, "////") {
+ assert_se(!b);
+ assert_se(streq(s, ""));
+ b = true;
+ }
+ assert_se(b);
+
+ PATH_FOREACH_PREFIX(s, "")
+ assert_not_reached("wut?");
+
+ b = false;
+ PATH_FOREACH_PREFIX_MORE(s, "") {
+ assert_se(!b);
+ assert_se(streq(s, ""));
+ b = true;
+ }
+}
+
+static void test_path_join(void) {
+
+#define test_join(root, path, rest, expected) { \
+ _cleanup_free_ char *z = NULL; \
+ z = path_join(root, path, rest); \
+ assert_se(streq(z, expected)); \
+ }
+
+ test_join("/root", "/a/b", "/c", "/root/a/b/c");
+ test_join("/root", "a/b", "c", "/root/a/b/c");
+ test_join("/root", "/a/b", "c", "/root/a/b/c");
+ test_join("/root", "/", "c", "/root/c");
+ test_join("/root", "/", NULL, "/root/");
+
+ test_join(NULL, "/a/b", "/c", "/a/b/c");
+ test_join(NULL, "a/b", "c", "a/b/c");
+ test_join(NULL, "/a/b", "c", "/a/b/c");
+ test_join(NULL, "/", "c", "/c");
+ test_join(NULL, "/", NULL, "/");
+}
+
+#if 0 /// UNNEEDED by elogind
+static void test_fsck_exists(void) {
+ /* Ensure we use a sane default for PATH. */
+ unsetenv("PATH");
+
+ /* fsck.minix is provided by util-linux and will probably exist. */
+ assert_se(fsck_exists("minix") == 1);
+
+ assert_se(fsck_exists("AbCdE") == 0);
+ assert_se(fsck_exists("/../bin/") == 0);
+}
+
+static void test_make_relative(void) {
+ char *result;
+
+ assert_se(path_make_relative("some/relative/path", "/some/path", &result) < 0);
+ assert_se(path_make_relative("/some/path", "some/relative/path", &result) < 0);
+
+#define test(from_dir, to_path, expected) { \
+ _cleanup_free_ char *z = NULL; \
+ path_make_relative(from_dir, to_path, &z); \
+ assert_se(streq(z, expected)); \
+ }
+
+ test("/", "/", ".");
+ test("/", "/some/path", "some/path");
+ test("/some/path", "/some/path", ".");
+ test("/some/path", "/some/path/in/subdir", "in/subdir");
+ test("/some/path", "/", "../..");
+ test("/some/path", "/some/other/path", "../other/path");
+ test("//extra/////slashes///won't////fool///anybody//", "////extra///slashes////are/just///fine///", "../../../are/just/fine");
+}
+#endif // 0
+
+static void test_strv_resolve(void) {
+ char tmp_dir[] = "/tmp/test-path-util-XXXXXX";
+ _cleanup_strv_free_ char **search_dirs = NULL;
+ _cleanup_strv_free_ char **absolute_dirs = NULL;
+ char **d;
+
+ assert_se(mkdtemp(tmp_dir) != NULL);
+
+ search_dirs = strv_new("/dir1", "/dir2", "/dir3", NULL);
+ assert_se(search_dirs);
+ STRV_FOREACH(d, search_dirs) {
+ char *p = strappend(tmp_dir, *d);
+ assert_se(p);
+ assert_se(strv_push(&absolute_dirs, p) == 0);
+ }
+
+ assert_se(mkdir(absolute_dirs[0], 0700) == 0);
+ assert_se(mkdir(absolute_dirs[1], 0700) == 0);
+ assert_se(symlink("dir2", absolute_dirs[2]) == 0);
+
+ path_strv_resolve(search_dirs, tmp_dir);
+ assert_se(streq(search_dirs[0], "/dir1"));
+ assert_se(streq(search_dirs[1], "/dir2"));
+ assert_se(streq(search_dirs[2], "/dir2"));
+
+ assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0);
+}
+
+static void test_path_startswith(void) {
+ const char *p;
+
+ p = path_startswith("/foo/bar/barfoo/", "/foo");
+ assert_se(streq_ptr(p, "bar/barfoo/"));
+
+ p = path_startswith("/foo/bar/barfoo/", "/foo/");
+ assert_se(streq_ptr(p, "bar/barfoo/"));
+
+ p = path_startswith("/foo/bar/barfoo/", "/");
+ assert_se(streq_ptr(p, "foo/bar/barfoo/"));
+
+ p = path_startswith("/foo/bar/barfoo/", "////");
+ assert_se(streq_ptr(p, "foo/bar/barfoo/"));
+
+ p = path_startswith("/foo/bar/barfoo/", "/foo//bar/////barfoo///");
+ assert_se(streq_ptr(p, ""));
+
+ p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo////");
+ assert_se(streq_ptr(p, ""));
+
+ p = path_startswith("/foo/bar/barfoo/", "/foo/bar///barfoo/");
+ assert_se(streq_ptr(p, ""));
+
+ p = path_startswith("/foo/bar/barfoo/", "/foo////bar/barfoo/");
+ assert_se(streq_ptr(p, ""));
+
+ p = path_startswith("/foo/bar/barfoo/", "////foo/bar/barfoo/");
+ assert_se(streq_ptr(p, ""));
+
+ p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo");
+ assert_se(streq_ptr(p, ""));
+
+ assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa/"));
+ assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa"));
+ assert_se(!path_startswith("/foo/bar/barfoo/", ""));
+ assert_se(!path_startswith("/foo/bar/barfoo/", "/bar/foo"));
+ assert_se(!path_startswith("/foo/bar/barfoo/", "/f/b/b/"));
+}
+
+static void test_prefix_root_one(const char *r, const char *p, const char *expected) {
+ _cleanup_free_ char *s = NULL;
+ const char *t;
+
+ assert_se(s = prefix_root(r, p));
+ assert_se(streq_ptr(s, expected));
+
+ t = prefix_roota(r, p);
+ assert_se(t);
+ assert_se(streq_ptr(t, expected));
+}
+
+static void test_prefix_root(void) {
+ test_prefix_root_one("/", "/foo", "/foo");
+ test_prefix_root_one(NULL, "/foo", "/foo");
+ test_prefix_root_one("", "/foo", "/foo");
+ test_prefix_root_one("///", "/foo", "/foo");
+ test_prefix_root_one("/", "////foo", "/foo");
+ test_prefix_root_one(NULL, "////foo", "/foo");
+
+ test_prefix_root_one("/foo", "/bar", "/foo/bar");
+ test_prefix_root_one("/foo", "bar", "/foo/bar");
+ test_prefix_root_one("foo", "bar", "foo/bar");
+ test_prefix_root_one("/foo/", "/bar", "/foo/bar");
+ test_prefix_root_one("/foo/", "//bar", "/foo/bar");
+ test_prefix_root_one("/foo///", "//bar", "/foo/bar");
+}
+
+static void test_path_is_mount_point(void) {
+ int fd;
+ char tmp_dir[] = "/tmp/test-path-is-mount-point-XXXXXX";
+ _cleanup_free_ char *file1 = NULL, *file2 = NULL, *link1 = NULL, *link2 = NULL;
+ _cleanup_free_ char *dir1 = NULL, *dir1file = NULL, *dirlink1 = NULL, *dirlink1file = NULL;
+ _cleanup_free_ char *dir2 = NULL, *dir2file = NULL;
+
+ assert_se(path_is_mount_point("/", NULL, AT_SYMLINK_FOLLOW) > 0);
+ assert_se(path_is_mount_point("/", NULL, 0) > 0);
+
+ assert_se(path_is_mount_point("/proc", NULL, AT_SYMLINK_FOLLOW) > 0);
+ assert_se(path_is_mount_point("/proc", NULL, 0) > 0);
+
+ assert_se(path_is_mount_point("/proc/1", NULL, AT_SYMLINK_FOLLOW) == 0);
+ assert_se(path_is_mount_point("/proc/1", NULL, 0) == 0);
+
+ assert_se(path_is_mount_point("/sys", NULL, AT_SYMLINK_FOLLOW) > 0);
+ assert_se(path_is_mount_point("/sys", NULL, 0) > 0);
+
+ /* we'll create a hierarchy of different kinds of dir/file/link
+ * layouts:
+ *
+ * <tmp>/file1, <tmp>/file2
+ * <tmp>/link1 -> file1, <tmp>/link2 -> file2
+ * <tmp>/dir1/
+ * <tmp>/dir1/file
+ * <tmp>/dirlink1 -> dir1
+ * <tmp>/dirlink1file -> dirlink1/file
+ * <tmp>/dir2/
+ * <tmp>/dir2/file
+ */
+
+ /* file mountpoints */
+ assert_se(mkdtemp(tmp_dir) != NULL);
+ file1 = path_join(NULL, tmp_dir, "file1");
+ assert_se(file1);
+ file2 = path_join(NULL, tmp_dir, "file2");
+ assert_se(file2);
+ fd = open(file1, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
+ assert_se(fd > 0);
+ close(fd);
+ fd = open(file2, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
+ assert_se(fd > 0);
+ close(fd);
+ link1 = path_join(NULL, tmp_dir, "link1");
+ assert_se(link1);
+ assert_se(symlink("file1", link1) == 0);
+ link2 = path_join(NULL, tmp_dir, "link2");
+ assert_se(link1);
+ assert_se(symlink("file2", link2) == 0);
+
+ assert_se(path_is_mount_point(file1, NULL, AT_SYMLINK_FOLLOW) == 0);
+ assert_se(path_is_mount_point(file1, NULL, 0) == 0);
+ assert_se(path_is_mount_point(link1, NULL, AT_SYMLINK_FOLLOW) == 0);
+ assert_se(path_is_mount_point(link1, NULL, 0) == 0);
+
+ /* directory mountpoints */
+ dir1 = path_join(NULL, tmp_dir, "dir1");
+ assert_se(dir1);
+ assert_se(mkdir(dir1, 0755) == 0);
+ dirlink1 = path_join(NULL, tmp_dir, "dirlink1");
+ assert_se(dirlink1);
+ assert_se(symlink("dir1", dirlink1) == 0);
+ dirlink1file = path_join(NULL, tmp_dir, "dirlink1file");
+ assert_se(dirlink1file);
+ assert_se(symlink("dirlink1/file", dirlink1file) == 0);
+ dir2 = path_join(NULL, tmp_dir, "dir2");
+ assert_se(dir2);
+ assert_se(mkdir(dir2, 0755) == 0);
+
+ assert_se(path_is_mount_point(dir1, NULL, AT_SYMLINK_FOLLOW) == 0);
+ assert_se(path_is_mount_point(dir1, NULL, 0) == 0);
+ assert_se(path_is_mount_point(dirlink1, NULL, AT_SYMLINK_FOLLOW) == 0);
+ assert_se(path_is_mount_point(dirlink1, NULL, 0) == 0);
+
+ /* file in subdirectory mountpoints */
+ dir1file = path_join(NULL, dir1, "file");
+ assert_se(dir1file);
+ fd = open(dir1file, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
+ assert_se(fd > 0);
+ close(fd);
+
+ assert_se(path_is_mount_point(dir1file, NULL, AT_SYMLINK_FOLLOW) == 0);
+ assert_se(path_is_mount_point(dir1file, NULL, 0) == 0);
+ assert_se(path_is_mount_point(dirlink1file, NULL, AT_SYMLINK_FOLLOW) == 0);
+ assert_se(path_is_mount_point(dirlink1file, NULL, 0) == 0);
+
+ /* these tests will only work as root */
+ if (mount(file1, file2, NULL, MS_BIND, NULL) >= 0) {
+ int rt, rf, rlt, rlf, rl1t, rl1f;
+
+ /* files */
+ /* capture results in vars, to avoid dangling mounts on failure */
+ rf = path_is_mount_point(file2, NULL, 0);
+ rt = path_is_mount_point(file2, NULL, AT_SYMLINK_FOLLOW);
+ rlf = path_is_mount_point(link2, NULL, 0);
+ rlt = path_is_mount_point(link2, NULL, AT_SYMLINK_FOLLOW);
+
+ assert_se(umount(file2) == 0);
+
+ assert_se(rf == 1);
+ assert_se(rt == 1);
+ assert_se(rlf == 0);
+ assert_se(rlt == 1);
+
+ /* dirs */
+ dir2file = path_join(NULL, dir2, "file");
+ assert_se(dir2file);
+ fd = open(dir2file, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
+ assert_se(fd > 0);
+ close(fd);
+
+ assert_se(mount(dir2, dir1, NULL, MS_BIND, NULL) >= 0);
+
+ rf = path_is_mount_point(dir1, NULL, 0);
+ rt = path_is_mount_point(dir1, NULL, AT_SYMLINK_FOLLOW);
+ rlf = path_is_mount_point(dirlink1, NULL, 0);
+ rlt = path_is_mount_point(dirlink1, NULL, AT_SYMLINK_FOLLOW);
+ /* its parent is a mount point, but not /file itself */
+ rl1f = path_is_mount_point(dirlink1file, NULL, 0);
+ rl1t = path_is_mount_point(dirlink1file, NULL, AT_SYMLINK_FOLLOW);
+
+ assert_se(umount(dir1) == 0);
+
+ assert_se(rf == 1);
+ assert_se(rt == 1);
+ assert_se(rlf == 0);
+ assert_se(rlt == 1);
+ assert_se(rl1f == 0);
+ assert_se(rl1t == 0);
+
+ } else
+ printf("Skipping bind mount file test: %m\n");
+
+ assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0);
+}
+
+static void test_file_in_same_dir(void) {
+ char *t;
+
+ t = file_in_same_dir("/", "a");
+ assert_se(streq(t, "/a"));
+ free(t);
+
+ t = file_in_same_dir("/", "/a");
+ assert_se(streq(t, "/a"));
+ free(t);
+
+ t = file_in_same_dir("", "a");
+ assert_se(streq(t, "a"));
+ free(t);
+
+ t = file_in_same_dir("a/", "a");
+ assert_se(streq(t, "a/a"));
+ free(t);
+
+ t = file_in_same_dir("bar/foo", "bar");
+ assert_se(streq(t, "bar/bar"));
+ free(t);
+}
+
+static void test_filename_is_valid(void) {
+ char foo[FILENAME_MAX+2];
+ int i;
+
+ assert_se(!filename_is_valid(""));
+ assert_se(!filename_is_valid("/bar/foo"));
+ assert_se(!filename_is_valid("/"));
+ assert_se(!filename_is_valid("."));
+ assert_se(!filename_is_valid(".."));
+
+ for (i=0; i<FILENAME_MAX+1; i++)
+ foo[i] = 'a';
+ foo[FILENAME_MAX+1] = '\0';
+
+ assert_se(!filename_is_valid(foo));
+
+ assert_se(filename_is_valid("foo_bar-333"));
+ assert_se(filename_is_valid("o.o"));
+}
+
+static void test_hidden_or_backup_file(void) {
+ assert_se(hidden_or_backup_file(".hidden"));
+ assert_se(hidden_or_backup_file("..hidden"));
+ assert_se(!hidden_or_backup_file("hidden."));
+
+ assert_se(hidden_or_backup_file("backup~"));
+ assert_se(hidden_or_backup_file(".backup~"));
+
+ assert_se(hidden_or_backup_file("lost+found"));
+ assert_se(hidden_or_backup_file("aquota.user"));
+ assert_se(hidden_or_backup_file("aquota.group"));
+
+ assert_se(hidden_or_backup_file("test.rpmnew"));
+ assert_se(hidden_or_backup_file("test.dpkg-old"));
+ assert_se(hidden_or_backup_file("test.dpkg-remove"));
+ assert_se(hidden_or_backup_file("test.swp"));
+
+ assert_se(!hidden_or_backup_file("test.rpmnew."));
+ assert_se(!hidden_or_backup_file("test.dpkg-old.foo"));
+}
+
+#if 0 /// UNNEEDED by elogind
+static void test_systemd_installation_has_version(const char *path) {
+ int r;
+ const unsigned versions[] = {0, 231, atoi(PACKAGE_VERSION), 999};
+ unsigned i;
+
+ for (i = 0; i < ELEMENTSOF(versions); i++) {
+ r = systemd_installation_has_version(path, versions[i]);
+ assert_se(r >= 0);
+ log_info("%s has systemd >= %u: %s",
+ path ?: "Current installation", versions[i], yes_no(r));
+ }
+}
+#endif // 0
+
+int main(int argc, char **argv) {
+ log_set_max_level(LOG_DEBUG);
+ log_parse_environment();
+ log_open();
+
+ test_path();
+ test_find_binary(argv[0]);
+ test_prefixes();
+ test_path_join();
+#if 0 /// UNNEEDED by elogind
+ test_fsck_exists();
+ test_make_relative();
+#endif // 0
+ test_strv_resolve();
+ test_path_startswith();
+ test_prefix_root();
+ test_path_is_mount_point();
+ test_file_in_same_dir();
+ test_filename_is_valid();
+ test_hidden_or_backup_file();
+
+#if 0 /// UNNEEDED by elogind
+ test_systemd_installation_has_version(argv[1]); /* NULL is OK */
+#endif // 0
+
+ return 0;
+}
~ianmdlvl / elogind.git / blobdiff