Merged revisions 273142 via svnmerge from

https://origsvn.digium.com/svn/asterisk/trunk

........
  r273142 | tilghman | 2010-06-29 20:01:14 -0500 (Tue, 29 Jun 2010) | 5 lines
  
  Don't attempt to proceed if our internal parser indicates an invalid file.
  
  (closes issue #17560)
   Reported by: Nick_Lewis
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.2@273143 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/config.c

@@ -1883,7 +1883,9 @@ int read_config_maps(void)
 	configtmp = ast_config_new();
 	configtmp->max_include_level = 1;
 	config = ast_config_internal_load(extconfig_conf, configtmp, flags, "", "extconfig");
-	if (!config) {
+	if (config == CONFIG_STATUS_FILEINVALID) {
+		return -1;
+	} else if (!config) {
 		ast_config_destroy(configtmp);
 		return 0;
 	}