Intro(NET)

Intro(NET)
Intro -- introduce TLI/XTI

Description

The X/Open Transport Interface (XTI) is a library of functions used to write networked applications over a transport provider protocol such as TCP/IP. XTI is derived from the Transport Level Interface (TLI). Both XTI and TLI are Application Program Interfaces (APIs) that allow application programs to access transport providers in a nearly transport-independent fashion. The two interfaces have their own libraries and header files but there are few differences between them otherwise. Differences between the APIs are noted to allow applications to be ported.

XTI uses the header file <xti.h> and the library xti. TLI uses the header file <sys/tiuser.h> and the library nsl (Network Services Library).

List of functions

 ------------------------------------------------------------------
 Name              Appears on page   Description
 ------------------------------------------------------------------
 t_accept          t_accept(NET)     accept a connect request
 t_alloc           t_alloc(NET)      allocate a library structure
 t_bind            t_bind(NET)       bind an address to a transport
                                     endpoint
 t_close           t_close(NET)      close a transport endpoint
 t_connect         t_connect(NET)    establish a connection with
                                     another transport user
 t_error           t_error(NET)      produce error message

 t_free            t_free(NET)       free a library structure
 t_getinfo         t_getinfo(NET)    get protocol-specific service
                                     information
 t_getstate        t_getstate(NET)   get the current state
 t_listen          t_listen(NET)     listen for a connect request
 t_look            t_look(NET)       look at the current event on a
                                     transport endpoint

 t_open            t_open(NET)         establish a transport endpoint
 t_optmgmt         t_optmgmt(NET)      manage options for a transport
                                       endpoint
 t_rcv             t_rcv(NET)          receive data or expedited data
                                       sent over a connection
 t_rcvconnect      t_rcvconnect(NET)   receive the confirmation from
                                       a connect request
 t_rcvudata        t_rcvudata(NET)     receive a data unit
 t_rcvdis          t_rcvdis(NET)       retrieve information from
                                       disconnect
 t_rcvrel          t_rcvrel(NET)       acknowledge receipt of an
                                       orderly release indication
 t_rcvuderr        t_rcvuderr(NET)     receive a unit data error
                                       indication

 t_snd             t_snd(NET)        send data or expedited data
                                     over a connection
 t_snddis          t_snddis(NET)     send user-initiated disconnect
                                     request
 t_sndrel          t_sndrel(NET)     initiate an orderly release
 t_sndudata        t_sndudata(NET)   send a data unit
 t_sync            t_sync(NET)       synchronize transport library
 t_unbind          t_unbind(NET)     disable a transport endpoint

Files

/usr/lib/libnsl.a
TLI static shared library

/usr/lib/libnsl.so
TLI dynamic linked library

/usr/include/sys/tiuser.h
TLI header file

/usr/lib/libxti.a
XTI static shared library

/usr/lib/libxti.so
XTI dynamic linked library

/usr/include/xti.h
XTI header file

See also

netbuf(FP), t_info(FP)

Standards conformance

The XTI API routines are conformant with:

AT&T SVID Issue 3 ;
X/Open CAE Specification, Networking Services, Issue 4, 1994. ;
and Intel386 Binary Compatibility Specification, Edition 2 (iBCSe2) .

SCO OpenServer Release 5.0.6 -- 1 August 2000