Socket-to-XTI/TLI Equivalents

The following table shows approximate equivalents between XTI/TLI interfaces and socket interfaces. The comment field describes the differences. If the comment column is blank, either the interfaces are similar or no equivalent interface exists in either interface.

Table 8-8 TLI and Socket Equivalent Functions

TLI interface	Socket interface	Comments
`t_open`(3NSL)	`socket`(3SOCKET)
`–`	`socketpair`(3SOCKET)
`t_bind`(3NSL)	`bind`(3SOCKET)	`t_bind`(3NSL) sets the queue depth for passive sockets, but `bind`(3SOCKET) does not. For sockets, the queue length is specified in the call to `listen`(3SOCKET).
`t_optmgmt`(3NSL)	`getsockopt`(3SOCKET) `setsockopt`(3SOCKET)	`t_optmgmt`(3NSL) manages only transport options. `getsockopt`(3SOCKET) and `setsockopt`(3SOCKET) can manage options at the transport layer, but also at the socket layer and at the arbitrary protocol layer.
`t_unbind`(3NSL)	`–`
`t_close`(3NSL)	`close`(2)
`t_getinfo`(3NSL)	`getsockopt`(3SOCKET)	`t_getinfo`(3NSL) returns information about the transport. `getsockopt`(3SOCKET) can return information about the transport and the socket.
`t_getstate`(3NSL)	`-`
`t_sync`(3NSL)	`-`
`t_alloc`(3NSL)	`-`
`t_free`(3NSL)	`-`
`t_look`(3NSL)	`-`	`getsockopt`(3SOCKET) with the `SO_ERROR` option returns the same kind of error information as `t_look`(3NSL)`t_look()`.
`t_error`(3NSL)	`perror`(3C)
`t_connect`(3NSL)	`connect`(3SOCKET)	You do not need to bind the local endpoint before invoking `connect`(3SOCKET). Bind the endpoint before calling `t_connect`(3NSL). You can use `connect`(3SOCKET) on a connectionless endpoint to set the default destination address for datagrams. You can send data using `connect`(3SOCKET).
`t_rcvconnect`(3NSL)	`-`
`t_listen`(3NSL)	`listen`(3SOCKET)	`t_listen`(3NSL) waits for connection indications. `listen`(3SOCKET) sets the queue depth.
`t_accept`(3NSL)	`accept`(3SOCKET)
`t_snd`(3NSL)	`send`(3SOCKET)
	`sendto`(3SOCKET)
	`sendmsg`(3SOCKET)	`sendto`(3SOCKET) and `sendmsg`(3SOCKET) operate in connection mode as well as in datagram mode.
`t_rcv`(3NSL)	`recv`(3SOCKET)
	`recvfrom`(3SOCKET)
	`recvmsg`(3SOCKET)	`recvfrom`(3SOCKET) and `recvmsg`(3SOCKET) operate in connection mode as well as datagram mode.
`t_snddis`(3NSL)	`-`
`t_rcvdis`(3NSL)	`-`
`t_sndrel`(3NSL)	`shutdown`(3SOCKET)
`t_rcvrel`(3NSL)	`-`
`t_sndudata`(3NSL)	`sendto`(3SOCKET)
	`recvmsg`(3SOCKET)
`t_rcvuderr`(3NSL)	`-`
`read`(2), `write`(2)	`read`(2), `write`(2)	In XTI/TLI you must push the `tirdwr`(7M) module before calling `read`(2) or `write`(2). In sockets, calling `read`(2) or `write`(2) suffices.

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