.TH telnet_negotiate 3 LIBTELNET "" "TELNET Library"

.SH NAME
\fBtelnet_negotiate\fP - TELNET option negotiation

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

.SH DESCRIPTION
.PP
The \fBtelnet_negotiate\fP function is used to request option negotiation.  RFC1143 negotiation (Q-method negotiation) is automatically used by libtelnet internally.  If the requested option is not already enabled/disabled as desired, negotiation will take place; otherwise, nothing will happen.

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

The parameter \fIcmd\fP must be one of:
.TP
\fBTELNET_WILL\fP
Request permission to enable an option on the local end.

.TP
\fBTELNET_WONT\fP
Request permission to disable an option on the local end.

.TP
\fBTELNET_DO\fP
Request for the peer to enable an option on the peer's end.

.TP
\fBTELNET_DONT\fP
Request for the peer to disable an option on the peer's end.

.PP
The parameter \fIopt\fP is the TELNET option being negotiated.  It should be one of the TELNET_OPTION_* constants.

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