X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fserver%2Ftelnet_server.c;h=d41cfb53166e61fbb33c587c4c3ef9d24e939855;hb=b2b514be5bcca8b84736ed2abb8687477ade583c;hp=4fc71f384e26a693e9bc0dc5d538811da732065d;hpb=822097a351f8aef0036359bc3f4ad3972c1ddbe3;p=fw%2Fopenocd

diff --git a/src/server/telnet_server.c b/src/server/telnet_server.c
index 4fc71f384..d41cfb531 100644
--- a/src/server/telnet_server.c
+++ b/src/server/telnet_server.c
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
 /***************************************************************************
  *   Copyright (C) 2005 by Dominic Rath                                    *
  *   Dominic.Rath@gmx.de                                                   *
@@ -7,19 +9,6 @@
  *                                                                         *
  *   Copyright (C) 2008 by Spencer Oliver                                  *
  *   spen@spen-soft.co.uk                                                  *
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License as published by  *
- *   the Free Software Foundation; either version 2 of the License, or     *
- *   (at your option) any later version.                                   *
- *                                                                         *
- *   This program is distributed in the hope that it will be useful,       *
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
- *   GNU General Public License for more details.                          *
- *                                                                         *
- *   You should have received a copy of the GNU General Public License     *
- *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  ***************************************************************************/
 
 #ifdef HAVE_CONFIG_H
@@ -615,7 +604,11 @@ static void telnet_auto_complete(struct connection *connection)
 	while ((usr_cmd_pos < t_con->line_cursor) && isspace(t_con->line[usr_cmd_pos]))
 		usr_cmd_pos++;
 
-	/* user command length */
+	/* check user command length */
+	if (t_con->line_cursor < usr_cmd_pos) {
+		telnet_bell(connection);
+		return;
+	}
 	size_t usr_cmd_len = t_con->line_cursor - usr_cmd_pos;
 
 	/* optimize multiple spaces in the user command,