From: Marek Vavruša <marek.vavrusa@nic.cz>
Date: Mon, 13 Jul 2015 14:16:27 +0000 (+0200)
Subject: modules/stats: fixed potential crash on empty prefix
X-Git-Tag: v1.0.0-beta1~77^2~12
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=86455e1c1ec2d1f1dbc17efe91541541be15233b;p=thirdparty%2Fknot-resolver.git

modules/stats: fixed potential crash on empty prefix
---

diff --git a/modules/stats/stats.c b/modules/stats/stats.c
index 24d07d96f..078ff7b12 100644
--- a/modules/stats/stats.c
+++ b/modules/stats/stats.c
@@ -264,7 +264,7 @@ static char* stats_list(void *env, struct kr_module *module, const char *args)
 			json_append_member(root, elm->key, json_mknumber(elm->val));
 		}
 	}
-	map_walk_prefixed(&data->map, args ? args : "", list_entry, root);
+	map_walk_prefixed(&data->map, (args_len > 0) ? args : "", list_entry, root);
 	char *ret = json_encode(root);
 	json_delete(root);
 	return ret;