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 inter-
       faces. 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)

SunOS 5.10							    7 May 1998							    t_unbind(3NSL)