From: Sebastian Harl <sh@tokkee.org>
Date: Mon, 28 Jul 2014 07:15:19 +0000 (+0200)
Subject: store_lookup: Catch invalid values when parsing a matcher.
X-Git-Tag: sysdb-0.3.0~24
X-Git-Url: https://git.tokkee.org/?p=sysdb.git;a=commitdiff_plain;h=d50007810e6b5278e9b0af174b4bc7e964150f67

store_lookup: Catch invalid values when parsing a matcher.

Added a unit-test exposing the segfault we would have seen previously.
---

diff --git a/src/core/store_lookup.c b/src/core/store_lookup.c
index 0bb157c..8aa8ab0 100644
--- a/src/core/store_lookup.c
+++ b/src/core/store_lookup.c
@@ -818,6 +818,9 @@ sdb_store_matcher_parse_cmp(const char *obj_type, const char *attr,
 	else
 		return NULL;
 
+	if (! value)
+		return NULL;
+
 	if (value->type != SDB_TYPE_STRING) {
 		if (type == SDB_ATTRIBUTE)
 			return parse_attr_cmp(attr, op, value);
diff --git a/t/unit/core/store_lookup_test.c b/t/unit/core/store_lookup_test.c
index 351ae18..43bb1e5 100644
--- a/t/unit/core/store_lookup_test.c
+++ b/t/unit/core/store_lookup_test.c
@@ -421,6 +421,7 @@ START_TEST(test_parse_cmp)
 		{ "host",      NULL,   "<=", &hostname, -1 },
 		{ "host",      NULL,   ">=", &hostname, -1 },
 		{ "host",      NULL,   ">",  &hostname, -1 },
+		{ "host",      NULL,   "=",  NULL,      -1 },
 		{ "service",   NULL,   "=",  &srvname,  MATCHER_NAME },
 		{ "service",   NULL,   "!=", &srvname,  MATCHER_NOT },
 		{ "service",   NULL,   "=~", &srvname,  MATCHER_NAME },
@@ -432,6 +433,7 @@ START_TEST(test_parse_cmp)
 		{ "service",   NULL,   "<=", &srvname,  -1 },
 		{ "service",   NULL,   ">=", &srvname,  -1 },
 		{ "service",   NULL,   ">",  &srvname,  -1 },
+		{ "service",   NULL,   "=",  NULL,      -1 },
 		{ "attribute", NULL,   "=",  &attrname, MATCHER_NAME },
 		{ "attribute", NULL,   "!=", &attrname, MATCHER_NOT },
 		{ "attribute", NULL,   "=~", &attrname, MATCHER_NAME },
@@ -440,11 +442,13 @@ START_TEST(test_parse_cmp)
 		{ "attribute", NULL,   "<=", &attrname, -1 },
 		{ "attribute", NULL,   ">=", &attrname, -1 },
 		{ "attribute", NULL,   ">",  &attrname, -1 },
+		{ "attribute", NULL,   "=",  NULL,      -1 },
 		{ "attribute", "attr", "=",  &attrname, MATCHER_ATTR },
 		{ "attribute", "attr", "!=", &attrname, MATCHER_NOT },
 		{ "attribute", "attr", "=~", &attrname, MATCHER_ATTR },
 		{ "attribute", "attr", "!~", &attrname, MATCHER_NOT },
 		{ "attribute", "attr", "&^", &attrname, -1 },
+		{ "attribute", "attr", "<",  NULL,      -1 },
 		{ "attribute", "attr", "<",  &attrname, MATCHER_LT },
 		{ "attribute", "attr", "<=", &attrname, MATCHER_LE },
 /*		{ "attribute", "attr", "=",  &attrname, MATCHER_EQ }, */