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author | Sven Eden <yamakuzure@gmx.net> | 2017-07-19 11:55:18 +0200 |
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committer | Sven Eden <yamakuzure@gmx.net> | 2017-07-20 08:29:14 +0200 |
commit | 7873fa750d7d4310396e69df12b53e07e4e81249 (patch) | |
tree | c1175674af487fa3d492b0a78ef556b48ffc5c9d /src/test/test-fs-util.c | |
parent | a97a730270418e53e9400de5dce7b07c7dacd19a (diff) |
Prep v233.3: Add all possible coverage tests for elogind
Diffstat (limited to 'src/test/test-fs-util.c')
-rw-r--r-- | src/test/test-fs-util.c | 331 |
1 files changed, 331 insertions, 0 deletions
diff --git a/src/test/test-fs-util.c b/src/test/test-fs-util.c new file mode 100644 index 000000000..0125b389c --- /dev/null +++ b/src/test/test-fs-util.c @@ -0,0 +1,331 @@ +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + 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 <unistd.h> + +#include "alloc-util.h" +#include "fd-util.h" +#include "fileio.h" +#include "fs-util.h" +#include "macro.h" +#include "mkdir.h" +#include "path-util.h" +#include "rm-rf.h" +#include "string-util.h" +#include "strv.h" +#include "util.h" + +static void test_chase_symlinks(void) { + _cleanup_free_ char *result = NULL; + char temp[] = "/tmp/test-chase.XXXXXX"; + const char *top, *p, *q; + int r; + + assert_se(mkdtemp(temp)); + + top = strjoina(temp, "/top"); + assert_se(mkdir(top, 0700) >= 0); + + p = strjoina(top, "/dot"); + assert_se(symlink(".", p) >= 0); + + p = strjoina(top, "/dotdot"); + assert_se(symlink("..", p) >= 0); + + p = strjoina(top, "/dotdota"); + assert_se(symlink("../a", p) >= 0); + + p = strjoina(temp, "/a"); + assert_se(symlink("b", p) >= 0); + + p = strjoina(temp, "/b"); + assert_se(symlink("/usr", p) >= 0); + + p = strjoina(temp, "/start"); + assert_se(symlink("top/dot/dotdota", p) >= 0); + + /* Paths that use symlinks underneath the "root" */ + + r = chase_symlinks(p, NULL, 0, &result); + assert_se(r > 0); + assert_se(path_equal(result, "/usr")); + + result = mfree(result); + r = chase_symlinks(p, temp, 0, &result); + assert_se(r == -ENOENT); + + q = strjoina(temp, "/usr"); + + r = chase_symlinks(p, temp, CHASE_NONEXISTENT, &result); + assert_se(r == 0); + assert_se(path_equal(result, q)); + + assert_se(mkdir(q, 0700) >= 0); + + result = mfree(result); + r = chase_symlinks(p, temp, 0, &result); + assert_se(r > 0); + assert_se(path_equal(result, q)); + + p = strjoina(temp, "/slash"); + assert_se(symlink("/", p) >= 0); + + result = mfree(result); + r = chase_symlinks(p, NULL, 0, &result); + assert_se(r > 0); + assert_se(path_equal(result, "/")); + + result = mfree(result); + r = chase_symlinks(p, temp, 0, &result); + assert_se(r > 0); + assert_se(path_equal(result, temp)); + + /* Paths that would "escape" outside of the "root" */ + + p = strjoina(temp, "/6dots"); + assert_se(symlink("../../..", p) >= 0); + + result = mfree(result); + r = chase_symlinks(p, temp, 0, &result); + assert_se(r > 0 && path_equal(result, temp)); + + p = strjoina(temp, "/6dotsusr"); + assert_se(symlink("../../../usr", p) >= 0); + + result = mfree(result); + r = chase_symlinks(p, temp, 0, &result); + assert_se(r > 0 && path_equal(result, q)); + + p = strjoina(temp, "/top/8dotsusr"); + assert_se(symlink("../../../../usr", p) >= 0); + + result = mfree(result); + r = chase_symlinks(p, temp, 0, &result); + assert_se(r > 0 && path_equal(result, q)); + + /* Paths that contain repeated slashes */ + + p = strjoina(temp, "/slashslash"); + assert_se(symlink("///usr///", p) >= 0); + + result = mfree(result); + r = chase_symlinks(p, NULL, 0, &result); + assert_se(r > 0); + assert_se(path_equal(result, "/usr")); + + result = mfree(result); + r = chase_symlinks(p, temp, 0, &result); + assert_se(r > 0); + assert_se(path_equal(result, q)); + + /* Paths using . */ + + result = mfree(result); + r = chase_symlinks("/etc/./.././", NULL, 0, &result); + assert_se(r > 0); + assert_se(path_equal(result, "/")); + + result = mfree(result); + r = chase_symlinks("/etc/./.././", "/etc", 0, &result); + assert_se(r > 0 && path_equal(result, "/etc")); + + result = mfree(result); + r = chase_symlinks("/etc/machine-id/foo", NULL, 0, &result); + assert_se(r == -ENOTDIR); + + /* Path that loops back to self */ + + result = mfree(result); + p = strjoina(temp, "/recursive-symlink"); + assert_se(symlink("recursive-symlink", p) >= 0); + r = chase_symlinks(p, NULL, 0, &result); + assert_se(r == -ELOOP); + + /* Path which doesn't exist */ + + p = strjoina(temp, "/idontexist"); + r = chase_symlinks(p, NULL, 0, &result); + assert_se(r == -ENOENT); + + r = chase_symlinks(p, NULL, CHASE_NONEXISTENT, &result); + assert_se(r == 0); + assert_se(path_equal(result, p)); + result = mfree(result); + + p = strjoina(temp, "/idontexist/meneither"); + r = chase_symlinks(p, NULL, 0, &result); + assert_se(r == -ENOENT); + + r = chase_symlinks(p, NULL, CHASE_NONEXISTENT, &result); + assert_se(r == 0); + assert_se(path_equal(result, p)); + result = mfree(result); + + /* Path which doesn't exist, but contains weird stuff */ + + p = strjoina(temp, "/idontexist/.."); + r = chase_symlinks(p, NULL, 0, &result); + assert_se(r == -ENOENT); + + r = chase_symlinks(p, NULL, CHASE_NONEXISTENT, &result); + assert_se(r == -ENOENT); + + p = strjoina(temp, "/target"); + q = strjoina(temp, "/top"); + assert_se(symlink(q, p) >= 0); + p = strjoina(temp, "/target/idontexist"); + r = chase_symlinks(p, NULL, 0, &result); + assert_se(r == -ENOENT); + + assert_se(rm_rf(temp, REMOVE_ROOT|REMOVE_PHYSICAL) >= 0); +} + +static void test_unlink_noerrno(void) { + char name[] = "/tmp/test-close_nointr.XXXXXX"; + int fd; + + fd = mkostemp_safe(name); + assert_se(fd >= 0); + assert_se(close_nointr(fd) >= 0); + + { + PROTECT_ERRNO; + errno = -42; + assert_se(unlink_noerrno(name) >= 0); + assert_se(errno == -42); + assert_se(unlink_noerrno(name) < 0); + assert_se(errno == -42); + } +} + +static void test_readlink_and_make_absolute(void) { + char tempdir[] = "/tmp/test-readlink_and_make_absolute"; + char name[] = "/tmp/test-readlink_and_make_absolute/original"; + char name2[] = "test-readlink_and_make_absolute/original"; + char name_alias[] = "/tmp/test-readlink_and_make_absolute-alias"; + char *r = NULL; + + assert_se(mkdir_safe(tempdir, 0755, getuid(), getgid()) >= 0); + assert_se(touch(name) >= 0); + + assert_se(symlink(name, name_alias) >= 0); + assert_se(readlink_and_make_absolute(name_alias, &r) >= 0); + assert_se(streq(r, name)); + free(r); + assert_se(unlink(name_alias) >= 0); + + assert_se(chdir(tempdir) >= 0); + assert_se(symlink(name2, name_alias) >= 0); + assert_se(readlink_and_make_absolute(name_alias, &r) >= 0); + assert_se(streq(r, name)); + free(r); + assert_se(unlink(name_alias) >= 0); + + assert_se(rm_rf(tempdir, REMOVE_ROOT|REMOVE_PHYSICAL) >= 0); +} + +static void test_get_files_in_directory(void) { + _cleanup_strv_free_ char **l = NULL, **t = NULL; + + assert_se(get_files_in_directory("/tmp", &l) >= 0); + assert_se(get_files_in_directory(".", &t) >= 0); + assert_se(get_files_in_directory(".", NULL) >= 0); +} + +#if 0 /// UNNEEDED by elogind +static void test_var_tmp(void) { + _cleanup_free_ char *tmpdir_backup = NULL, *temp_backup = NULL, *tmp_backup = NULL; + const char *tmp_dir = NULL, *t; + + t = getenv("TMPDIR"); + if (t) { + tmpdir_backup = strdup(t); + assert_se(tmpdir_backup); + } + + t = getenv("TEMP"); + if (t) { + temp_backup = strdup(t); + assert_se(temp_backup); + } + + t = getenv("TMP"); + if (t) { + tmp_backup = strdup(t); + assert_se(tmp_backup); + } + + assert(unsetenv("TMPDIR") >= 0); + assert(unsetenv("TEMP") >= 0); + assert(unsetenv("TMP") >= 0); + + assert_se(var_tmp_dir(&tmp_dir) >= 0); + assert_se(streq(tmp_dir, "/var/tmp")); + + assert_se(setenv("TMPDIR", "/tmp", true) >= 0); + assert_se(streq(getenv("TMPDIR"), "/tmp")); + + assert_se(var_tmp_dir(&tmp_dir) >= 0); + assert_se(streq(tmp_dir, "/tmp")); + + assert_se(setenv("TMPDIR", "/88_does_not_exist_88", true) >= 0); + assert_se(streq(getenv("TMPDIR"), "/88_does_not_exist_88")); + + assert_se(var_tmp_dir(&tmp_dir) >= 0); + assert_se(streq(tmp_dir, "/var/tmp")); + + if (tmpdir_backup) { + assert_se(setenv("TMPDIR", tmpdir_backup, true) >= 0); + assert_se(streq(getenv("TMPDIR"), tmpdir_backup)); + } + + if (temp_backup) { + assert_se(setenv("TEMP", temp_backup, true) >= 0); + assert_se(streq(getenv("TEMP"), temp_backup)); + } + + if (tmp_backup) { + assert_se(setenv("TMP", tmp_backup, true) >= 0); + assert_se(streq(getenv("TMP"), tmp_backup)); + } +} +#endif // 0 + +static void test_dot_or_dot_dot(void) { + assert_se(!dot_or_dot_dot(NULL)); + assert_se(!dot_or_dot_dot("")); + assert_se(!dot_or_dot_dot("xxx")); + assert_se(dot_or_dot_dot(".")); + assert_se(dot_or_dot_dot("..")); + assert_se(!dot_or_dot_dot(".foo")); + assert_se(!dot_or_dot_dot("..foo")); +} + +int main(int argc, char *argv[]) { + test_unlink_noerrno(); + test_readlink_and_make_absolute(); + test_get_files_in_directory(); +#if 0 /// UNNEEDED by elogind + test_var_tmp(); +#endif // 0 + test_chase_symlinks(); + test_dot_or_dot_dot(); + + return 0; +} |