From 75fa3b2c5f62dd6d55860aaea979289d53b62a24 Mon Sep 17 00:00:00 2001
From: Jan Synacek <jsynacek@redhat.com>
Date: Thu, 23 Nov 2017 09:58:11 +0100
Subject: [PATCH] test-conf-parser: add tests for config parser
Add some basic tests for config_parse(). Add tests for the new long lines,
including overflow.
(cherry picked from commit e3f46367f577f8bd4b3a62ea0149bdcb112da573)
(cherry picked from commit 8f313f4febb4df13279aaae86c846bbb142a5a39)
Resolves: #1503106
---
Makefile.am | 7 ++
src/test/test-conf-parser.c | 155 ++++++++++++++++++++++++++++++++++++
2 files changed, 162 insertions(+)
create mode 100644 src/test/test-conf-parser.c
diff --git a/Makefile.am b/Makefile.am
index c4a96e1fd..8c73326fa 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1416,6 +1416,7 @@ tests += \
test-socket-util \
test-fdset \
test-conf-files \
+ test-conf-parser \
test-capability \
test-async \
test-ratelimit \
@@ -2041,6 +2042,12 @@ test_conf_files_SOURCES = \
test_conf_files_LDADD = \
libsystemd-shared.la
+test_conf_parser_SOURCES = \
+ src/test/test-conf-parser.c
+
+test_conf_parser_LDADD = \
+ libsystemd-shared.la
+
# ------------------------------------------------------------------------------
## .PHONY so it always rebuilds it
.PHONY: coverage lcov-run lcov-report coverage-sync
diff --git a/src/test/test-conf-parser.c b/src/test/test-conf-parser.c
new file mode 100644
index 000000000..4052d0095
--- /dev/null
+++ b/src/test/test-conf-parser.c
@@ -0,0 +1,155 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2015 Ronny Chevalier
+
+ 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 "conf-parser.h"
+#include "fileio.h"
+#include "log.h"
+#include "macro.h"
+#include "strv.h"
+#include "util.h"
+
+#define x10(x) x x x x x x x x x x
+#define x100(x) x10(x10(x))
+#define x1000(x) x10(x100(x))
+
+static const char* const config_file[] = {
+ "[Section]\n"
+ "setting1=1\n",
+
+ "[Section]\n"
+ "setting1=1", /* no terminating newline */
+
+ "\n\n\n\n[Section]\n\n\n"
+ "setting1=1", /* some whitespace, no terminating newline */
+
+ "[Section]\n"
+ "[Section]\n"
+ "setting1=1\n"
+ "setting1=2\n"
+ "setting1=1\n", /* repeated settings */
+
+ "[Section]\n"
+ "setting1=1\\\n" /* normal continuation */
+ "2\\\n"
+ "3\n",
+
+ "[Section]\n"
+ "setting1=1\\\\\\\n" /* continuation with trailing escape symbols */
+ "\\\\2\n", /* note that C requires one level of escaping, so the
+ * parser gets "…1 BS BS BS NL BS BS 2 NL", which
+ * it translates into "…1 BS BS SP BS BS 2" */
+
+ "\n[Section]\n\n"
+ "setting1=" /* a line above LINE_MAX length */
+ x1000("ABCD")
+ "\n",
+
+ "[Section]\n"
+ "setting1=" /* a line above LINE_MAX length, with continuation */
+ x1000("ABCD") "\\\n"
+ "foobar",
+
+ "[Section]\n"
+ "setting1=" /* a line above the allowed limit: 9 + 1050000 + 1 */
+ x1000(x1000("x") x10("abcde")) "\n",
+
+ "[Section]\n"
+ "setting1=" /* many continuation lines, together above the limit */
+ x1000(x1000("x") x10("abcde") "\\\n") "xxx",
+};
+
+static void test_config_parse(unsigned i, const char *s) {
+ char name[] = "/tmp/test-conf-parser.XXXXXX";
+ int fd, r;
+ _cleanup_fclose_ FILE *f = NULL;
+ _cleanup_free_ char *setting1 = NULL;
+
+ const ConfigTableItem items[] = {
+ { "Section", "setting1", config_parse_string, 0, &setting1},
+ {}
+ };
+
+ log_info("== %s[%i] ==", __func__, i);
+
+ fd = mkostemp_safe(name, O_CLOEXEC);
+ assert_se(fd >= 0);
+ assert_se((size_t) write(fd, s, strlen(s)) == strlen(s));
+
+ assert_se(lseek(fd, 0, SEEK_SET) == 0);
+ assert_se(f = fdopen(fd, "r"));
+
+ /*
+ int config_parse(const char *unit,
+ const char *filename,
+ FILE *f,
+ const char *sections,
+ ConfigItemLookup lookup,
+ const void *table,
+ bool relaxed,
+ bool allow_include,
+ bool warn,
+ void *userdata)
+ */
+
+ r = config_parse(NULL, name, f,
+ "Section\0",
+ config_item_table_lookup, items,
+ false, false, true, NULL);
+
+ switch (i) {
+ case 0 ... 3:
+ assert_se(r == 0);
+ assert_se(streq(setting1, "1"));
+ break;
+
+ case 4:
+ assert_se(r == 0);
+ assert_se(streq(setting1, "1 2 3"));
+ break;
+
+ case 5:
+ assert_se(r == 0);
+ assert_se(streq(setting1, "1\\\\ \\\\2"));
+ break;
+
+ case 6:
+ assert_se(r == 0);
+ assert_se(streq(setting1, x1000("ABCD")));
+ break;
+
+ case 7:
+ assert_se(r == 0);
+ assert_se(streq(setting1, x1000("ABCD") " foobar"));
+ break;
+
+ case 8 ... 9:
+ assert_se(r == -ENOBUFS);
+ assert_se(setting1 == NULL);
+ break;
+ }
+}
+
+int main(int argc, char **argv) {
+ unsigned i;
+
+ for (i = 0; i < ELEMENTSOF(config_file); i++)
+ test_config_parse(i, config_file[i]);
+
+ return 0;
+}