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:
TPROTOATTRIBUTES
See
attributes(7) for descriptions of the following attributes:
+---------------+-----------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-----------------+
|MT-Level | MT-Safe |
+---------------+-----------------+
SEE ALSO
t_bind(3NSL),
attributes(7) May 7, 1998
T_UNBIND(3NSL)