Don't die on a bad voicemail conf timezone entry (bug #1326)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@2591 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_voicemail.c

@@ -3422,6 +3422,7 @@ static int load_config(void)
 							msg_format = ast_strdupa(var->value);
 							if (msg_format != NULL) {
 								timezone = strsep(&msg_format, "|");
+								if (msg_format) {
 									strncpy(z->name, var->name, sizeof(z->name) - 1);
 									strncpy(z->timezone, timezone, sizeof(z->timezone) - 1);
 									strncpy(z->msg_format, msg_format, sizeof(z->msg_format) - 1);
@@ -3433,6 +3434,10 @@ static int load_config(void)
 										zones = z;
 										zonesl = z;
 									}
+								} else {
+									ast_log(LOG_WARNING, "Invalid tonezone definition at line %d\n", var->lineno);
+									free(z);
+								}
 							} else {
 								ast_log(LOG_WARNING, "Out of memory while reading voicemail config\n");
 								free(z);