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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Benjamin Marzinski <bmarzins@redhat.com>
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Date: Mon, 8 Jun 2020 20:23:56 -0500
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Subject: [PATCH] libmultipath: fix parser issue with comments in strings
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If a quoted string starts with '#' or '!', the parser will stop
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parsing the line, thinking that it's a comment. It should only
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be checking for comments outside of quoted strings. Fixed this and
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added unit tests to verify it.
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Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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---
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libmultipath/parser.c | 4 +++-
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tests/parser.c | 42 ++++++++++++++++++++++++++++++++++++++++++
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2 files changed, 45 insertions(+), 1 deletion(-)
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diff --git a/libmultipath/parser.c b/libmultipath/parser.c
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index a184511b..a7285a35 100644
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--- a/libmultipath/parser.c
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+++ b/libmultipath/parser.c
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@@ -300,8 +300,10 @@ alloc_strvec(char *string)
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(isspace((int) *cp) || !isascii((int) *cp)))
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&& *cp != '\0')
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cp++;
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- if (*cp == '\0' || *cp == '!' || *cp == '#')
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+ if (*cp == '\0' ||
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+ (!in_string && (*cp == '!' || *cp == '#'))) {
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return strvec;
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+ }
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}
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out:
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vector_free(strvec);
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diff --git a/tests/parser.c b/tests/parser.c
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index 29859dac..5772391e 100644
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--- a/tests/parser.c
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+++ b/tests/parser.c
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@@ -440,6 +440,46 @@ static void test18(void **state)
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free_strvec(v);
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}
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+static void test19(void **state)
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+{
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+#define QUOTED19 "!value"
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+ vector v = alloc_strvec("key \"" QUOTED19 "\"");
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+ char *val;
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+
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+ assert_int_equal(VECTOR_SIZE(v), 4);
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+ assert_string_equal(VECTOR_SLOT(v, 0), "key");
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+ assert_true(is_quote(VECTOR_SLOT(v, 1)));
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+ assert_string_equal(VECTOR_SLOT(v, 2), QUOTED19);
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+ assert_true(is_quote(VECTOR_SLOT(v, 3)));
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+ assert_int_equal(validate_config_strvec(v, test_file), 0);
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+
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+ val = set_value(v);
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+ assert_string_equal(val, QUOTED19);
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+
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+ free(val);
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+ free_strvec(v);
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+}
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+
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+static void test20(void **state)
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+{
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+#define QUOTED20 "#value"
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+ vector v = alloc_strvec("key \"" QUOTED20 "\"");
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+ char *val;
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+
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+ assert_int_equal(VECTOR_SIZE(v), 4);
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+ assert_string_equal(VECTOR_SLOT(v, 0), "key");
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+ assert_true(is_quote(VECTOR_SLOT(v, 1)));
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+ assert_string_equal(VECTOR_SLOT(v, 2), QUOTED20);
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+ assert_true(is_quote(VECTOR_SLOT(v, 3)));
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+ assert_int_equal(validate_config_strvec(v, test_file), 0);
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+
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+ val = set_value(v);
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+ assert_string_equal(val, QUOTED20);
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+
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+ free(val);
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+ free_strvec(v);
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+}
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+
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int test_config_parser(void)
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{
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const struct CMUnitTest tests[] = {
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@@ -461,6 +501,8 @@ int test_config_parser(void)
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cmocka_unit_test(test16),
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cmocka_unit_test(test17),
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cmocka_unit_test(test18),
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+ cmocka_unit_test(test19),
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+ cmocka_unit_test(test20),
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};
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return cmocka_run_group_tests(tests, setup, teardown);
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}
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--
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2.17.2
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