res_config_curl: fix a crash with static realtime.

(closes issue #18413)
Reported by: jmls
Patches:
      20101202__issue18413.diff.txt uploaded by tilghman (license 14)
Tested by: jmls

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@318057 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/res/res_config_curl.c b/res/res_config_curl.c
index 0ff6694dcb632bb0422a04a134210f0dd673bccd..6ee6e96f4e627d76b6e759ff903265d9e428c20a 100644 (file)
--- a/res/res_config_curl.c
+++ b/res/res_config_curl.c
@@ -583,7 +583,7 @@ static struct ast_config *config_curl(const char *url, const char *unused, const
                                return NULL;
                }
 
-               if (strcmp(category, cur_cat) || last_cat_metric != cat_metric) {
+               if (!cat || strcmp(category, cur_cat) || last_cat_metric != cat_metric) {
                        if (!(cat = ast_category_new(category, "", 99999)))
                                break;
                        cur_cat = category;