Fix:Core:Add warning for invalid commands.

git-svn-id: http://svn.code.sf.net/p/navit/code/trunk/navit@4868 ffa7fe5e-494d-0410-b361-a75ebd5db220

1 files changed, 5 insertions, 1 deletions

diff --git a/navit/command.c b/navit/command.c
index 9beac995..1523b6f1 100644
--- a/navit/command.c
+++ b/navit/command.c
@@ -443,10 +443,14 @@ command_call_function(struct context *ctx, struct result *res)
 		command_object_remove_attr(ctx, &res->attr, list[0]);
 	} else {
 		if (command_object_get_attr(ctx, &res->attr, attr_callback_list, &cbl)) {
-			int valid;
+			int valid =0;
 			struct attr **out=NULL;
 			dbg(1,"function call %s from %s\n",function, attr_to_name(res->attr.type));
 			callback_list_call_attr_4(cbl.u.callback_list, attr_command, function, list, &out, &valid);
+			if (valid!=1){
+				dbg(0, "invalid command ignored: \"%s\"; see http://wiki.navit-project.org/index.php/"
+				    "The_Navit_Command_Interface for valid commands.\n", function);
+			}
 			if (out && out[0]) {
 				attr_dup_content(out[0], &res->attr);
 				attr_list_free(out);