From b750101eb236130cf056c675997decbac904cc49 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 17:35:18 +0200 Subject: Adding upstream version 252.22. Signed-off-by: Daniel Baumann --- src/test/test-libmount.c | 110 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 src/test/test-libmount.c (limited to 'src/test/test-libmount.c') diff --git a/src/test/test-libmount.c b/src/test/test-libmount.c new file mode 100644 index 0000000..9ba428e --- /dev/null +++ b/src/test/test-libmount.c @@ -0,0 +1,110 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include "alloc-util.h" +#include "fd-util.h" +#include "escape.h" +#include "libmount-util.h" +#include "tests.h" + +static void test_libmount_unescaping_one( + const char *title, + const char *string, + bool may_fail, + const char *expected_source, + const char *expected_target) { + /* A test for libmount really */ + int r; + + log_info("/* %s %s */", __func__, title); + + _cleanup_(mnt_free_tablep) struct libmnt_table *table = NULL; + _cleanup_(mnt_free_iterp) struct libmnt_iter *iter = NULL; + _cleanup_fclose_ FILE *f = NULL; + + f = fmemopen((char*) string, strlen(string), "r"); + assert_se(f); + + assert_se(libmount_parse(title, f, &table, &iter) >= 0); + + struct libmnt_fs *fs; + const char *source, *target; + _cleanup_free_ char *x = NULL, *cs = NULL, *s = NULL, *ct = NULL, *t = NULL; + + /* We allow this call and the checks below to fail in some cases. See the case definitions below. */ + + r = mnt_table_next_fs(table, iter, &fs); + if (r != 0 && may_fail) { + log_error_errno(r, "mnt_table_next_fs failed: %m"); + return; + } + assert_se(r == 0); + + assert_se(x = cescape(string)); + + assert_se(source = mnt_fs_get_source(fs)); + assert_se(target = mnt_fs_get_target(fs)); + + assert_se(cs = cescape(source)); + assert_se(ct = cescape(target)); + + assert_se(cunescape(source, UNESCAPE_RELAX, &s) >= 0); + assert_se(cunescape(target, UNESCAPE_RELAX, &t) >= 0); + + log_info("from '%s'", x); + log_info("source: '%s'", source); + log_info("source: '%s'", cs); + log_info("source: '%s'", s); + log_info("expected: '%s'", strna(expected_source)); + log_info("target: '%s'", target); + log_info("target: '%s'", ct); + log_info("target: '%s'", t); + log_info("expected: '%s'", strna(expected_target)); + + assert_se(may_fail || streq(source, expected_source)); + assert_se(may_fail || streq(target, expected_target)); + + assert_se(mnt_table_next_fs(table, iter, &fs) == 1); +} + +TEST(libmount_unescaping) { + test_libmount_unescaping_one( + "escaped space + utf8", + "729 38 0:59 / /tmp/„zupa\\040zębowa” rw,relatime shared:395 - tmpfs die\\040Brühe rw,seclabel", + false, + "die Brühe", + "/tmp/„zupa zębowa”" + ); + + test_libmount_unescaping_one( + "escaped newline", + "729 38 0:59 / /tmp/x\\012y rw,relatime shared:395 - tmpfs newline rw,seclabel", + false, + "newline", + "/tmp/x\ny" + ); + + /* The result of "mount -t tmpfs '' /tmp/emptysource". + * This will fail with libmount <= v2.33. + * See https://github.com/karelzak/util-linux/commit/18a52a5094. + */ + test_libmount_unescaping_one( + "empty source", + "760 38 0:60 / /tmp/emptysource rw,relatime shared:410 - tmpfs rw,seclabel", + true, + "", + "/tmp/emptysource" + ); + + /* The kernel leaves \r as is. + * Also see https://github.com/karelzak/util-linux/issues/780. + */ + test_libmount_unescaping_one( + "foo\\rbar", + "790 38 0:61 / /tmp/foo\rbar rw,relatime shared:425 - tmpfs tmpfs rw,seclabel", + true, + "tmpfs", + "/tmp/foo\rbar" + ); +} + +DEFINE_TEST_MAIN(LOG_DEBUG); -- cgit v1.2.3