X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fserver%2Ftelnet_server.c;h=8e796264c2039f86879b362138fd268d5a7acb43;hb=d1b882f2c014258be5397067e45848fa5465b78b;hp=4fc71f384e26a693e9bc0dc5d538811da732065d;hpb=7cc79a8d62e0c98b52de04f71ef04167b8055385;p=fw%2Fopenocd

diff --git a/src/server/telnet_server.c b/src/server/telnet_server.c
index 4fc71f384..8e796264c 100644
--- a/src/server/telnet_server.c
+++ b/src/server/telnet_server.c
@@ -615,7 +615,11 @@ 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,