Patch #416079: fix the debug string output when receiving telnet commands.

added all the telnet options known to arpa/telnet.h
added all the options registered with IANA as of today
added the possibility for the user to have it's own option negotiation callback

1 files changed, 13 insertions, 1 deletions

diff --git a/Doc/lib/libtelnetlib.tex b/Doc/lib/libtelnetlib.tex
index c772839d2b..91695b35e2 100644
--- a/Doc/lib/libtelnetlib.tex
+++ b/Doc/lib/libtelnetlib.tex
@@ -9,7 +9,12 @@
 
 The \module{telnetlib} module provides a \class{Telnet} class that
 implements the Telnet protocol.  See \rfc{854} for details about the
-protocol.
+protocol. In addition, it provides symbolic constants for the protocol
+characters (IAC/DONT/DO/WONT/WILL), and for the telnet options. The
+symbolic names of the telnet options follow the definitions in
+\code{arpa/telnet.h}, with the leading \code{TELOPT_} removed. For
+symbolic names of options which are traditionally not included in
+\code{arpa/telnet.h}, see the module source itself.
 
 
 \begin{classdesc}{Telnet}{\optional{host\optional{, port}}}
@@ -158,6 +163,13 @@ or if more than one expression can match the same input, the
 results are indeterministic, and may depend on the I/O timing.
 \end{methoddesc}
 
+\begin{methoddesc}{set_option_negotiation_callback}{callback}
+Each time a telnet option is read on the input flow, this
+\var{callback} (if set) is called with the following parameters :
+callback(telnet socket, command (DO/DONT/WILL/WONT), option).  No other
+action is done afterwards by telnetlib.
+\end{methoddesc}
+
 
 \subsection{Telnet Example \label{telnet-example}}
 \sectionauthor{Peter Funk}{pf@artcom-gmbh.de}