.TH telnet_begin_sb 3 LIBTELNET "" "TELNET Library"

.SH NAME
\fBtelnet_begin_sb\fP - begin a TELNET sub-negotiation command

.SH SYNOPSIS
.PP
\fB#include <libtelnet.h>\fP
.sp
.B "void telnet_begin_sb(telnet_t *\fBtelnet\fR, unsigned char \fBopt\fR);"

.SH DESCRIPTION
.PP
The \fBtelnet_begin_sb\fR function sends the initial TELNET byte sequence to begin a TELNET sub-negotiation command.  All data sent over the connecton following this call will be part of the sub-negotiation comman data.  A call to \fBtelnet_finish_sb\fR MUST be made to complete the sub-negotiation.

The parameter \fItelnet\fP is a state tracker instance created by a prior call to \fBtelnet_init\fP.

The parameter \fIopt\fP is the TELNET option code for the sub-negotiation option being started.

.SH SEE ALSO
.PP
\fBlibtelnet\fR(3), \fBtelnet_send\fR(3), \fBtelnet_finish_sb\fR(3)