T_UNBIND(3NSL) Networking Services Library Functions T_UNBIND(3NSL)


NAME


t_unbind - disable a transport endpoint

SYNOPSIS


#include <xti.h>


int t_unbind(int fd);


DESCRIPTION


The This routine is part of the XTI interfaces which evolved from the TLI
interfaces. XTI represents the future evolution of these interfaces.
However, TLI interfaces are supported for compatibility. When using a TLI
routine that has the same name as an XTI routine, the tiuser.h header
file must be used. Refer to the TLI COMPATIBILITY section for a
description of differences between the two interfaces.


t_unbind() function disables the transport endpoint specified by fd which
was previously bound by t_bind(3NSL). On completion of this call, no
further data or events destined for this transport endpoint will be
accepted by the transport provider. An endpoint which is disabled by
using t_unbind() can be enabled by a subsequent call to t_bind(3NSL).

RETURN VALUES


Upon successful completion, a value of 0 is returned. Otherwise, a
value of -1 is returned and t_errno is set to indicate an error.

VALID STATES


T_IDLE.

ERRORS


On failure, t_errno is set to one of the following:

TBADF
The specified file descriptor does not refer to a transport
endpoint.


TLOOK
An asynchronous event has occurred on this transport
endpoint.


TOUTSTATE
The communications endpoint referenced by fd is not in one
of the states in which a call to this function is valid.


TPROTO
This error indicates that a communication problem has been
detected between XTI and the transport provider for which
there is no other suitable XTI error (t_errno).


TSYSERR
A system error has occurred during execution of this
function.


TLI COMPATIBILITY


The XTI and TLI interface definitions have common names but use different
header files. This, and other semantic differences between the two
interfaces are described in the subsections below.

Interface Header


The XTI interfaces use the header file, xti.h . TLI interfaces should not
use this header. They should use the header:
#include <tiuser.h>

Error Description Values


The t_errno value that can be set by the XTI interface and cannot be set
by the TLI interface is:
TPROTO

ATTRIBUTES


See attributes(5) for descriptions of the following attributes:


+---------------+-----------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-----------------+
|MT-Level | MT-Safe |
+---------------+-----------------+

SEE ALSO


t_bind(3NSL), attributes(5)


May 7, 1998 T_UNBIND(3NSL)