TLI and XTI

TLI (Transport Layer Interface) is an API developed by AT&T® for the creation of distributed applications that can be easily ported to run over different transports. XTI (X/Open Transport Interface) is an extension to and refinement of TLI developed by the X/Open Company Ltd.

Table 1-3 TLI and XTI library routines (NET)

               ------------------------------------------------
               Routine           Description
               ------------------------------------------------
               t_accept          accept a connect request
               t_alloc           allocate a library structure
               t_bind            bind an address to a transport
                                 endpoint
               t_close           close a transport endpoint
               t_connect         establish a connection with
                                 another transport user
               t_error           produce error message
               t_free            free a library structure
               t_getinfo         get protocol-specific service
                                 information
               t_getstate        get the current state
               t_listen          listen for a connect request
               t_look            look at the current event on a
                                 transport endpoint
               t_open            establish a transport endpoint
               t_optmgmt         manage options for a transport
                                 endpoint
               t_rcv             receive data or expedited data
                                 sent over a connection
               t_rcvconnect      receive the confirmation from
                                 a connect request
               t_rcvudata        receive a data unit
               t_rcvuderr        receive a unit data error
                                 indication
               t_rcvdis          retrieve information from
                                 disconnect
               t_rcvrel          acknowledge receipt of an
                                 orderly release indication
               t_snd             send data or expedited data
                                 over a connection
               t_snddis          send user-initiated disconnect
                                 request
               t_sndrel          initiate an orderly release
               t_sndudata        send a data unit
               t_sync            synchronize transport library
               t_unbind          disable a transport endpoint

TLI can be used to access the TCP/IP and IPX/SPX transports. XTI can be used to access the TCP/IP and NetBIOS transports.