From: Vladimir Isaev <visaev@netgate.com>
Date: Tue, 11 Aug 2020 14:15:58 +0000 (+0300)
Subject: vlib: extend telnet protocol guard
X-Git-Tag: v21.01-rc0~64
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=b59095f830fbacbe2631dbbaa92f8e9606184015;p=vpp.git

vlib: extend telnet protocol guard

There is a number of TERMs with big length, such as
'screen.konsole-256color' (23). These TERMs can not
be processed properly by vpp because maximum telnet
byte stream supported is 24 and we need 6 more service
bytes to send TTYPE.

So I extended maximum depth guard to 32.

Type: fix
Signed-off-by: Vladimir Isaev <visaev@netgate.com>
Change-Id: I9ca506996a97e9567d06483c5f020d6cc394329c
---

diff --git a/src/vlib/unix/cli.c b/src/vlib/unix/cli.c
index 5979dbdbd6a..e98eb3459fd 100644
--- a/src/vlib/unix/cli.c
+++ b/src/vlib/unix/cli.c
@@ -92,7 +92,7 @@
 
 /** Maximum depth into a byte stream from which to compile a Telnet
  * protocol message. This is a safety measure. */
-#define UNIX_CLI_MAX_DEPTH_TELNET 24
+#define UNIX_CLI_MAX_DEPTH_TELNET 32
 
 /** Maximum terminal width we will accept */
 #define UNIX_CLI_MAX_TERMINAL_WIDTH 512