From dc99f8d7a5f90eebd4c52cef8d186bf20e2a9912 Mon Sep 17 00:00:00 2001
From: LemonBoy <thatlemon@gmail.com>
Date: Wed, 15 Feb 2017 14:19:36 +0100
Subject: [PATCH] Properly check the command arguments in tail place.

A command requiring an argument and given in tail position would not
raise an error but silently set the value to the empty string ''.
---
 src/core/commands.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/core/commands.c b/src/core/commands.c
index 607baf77..8e21a88a 100644
--- a/src/core/commands.c
+++ b/src/core/commands.c
@@ -567,13 +567,14 @@ static int get_cmd_options(char **data, int ignore_unknown,
 
 	option = NULL; pos = -1;
 	for (;;) {
-		if (**data == '-') {
+		if (**data == '\0' || **data == '-') {
 			if (option != NULL && *optlist[pos] == '+') {
 				/* required argument missing! */
                                 *data = optlist[pos] + 1;
 				return CMDERR_OPTION_ARG_MISSING;
 			}
-
+		}
+		if (**data == '-') {
 			(*data)++;
 			if (**data == '-' && (*data)[1] == ' ') {
 				/* -- option means end of options even