ticlts(7) UNIX System V ticlts(7)
NAME
ticlts, ticots, ticotsord - loopback transport providers
SYNOPSIS
#include <ticlts.h>
#include <ticots.h>
#include <ticotsord.h>
DESCRIPTION
The devices known as ticlts, ticots, and ticotsord are ``loopback
transport providers,'' that is, stand-alone networks at the transport
level. Loopback transport providers are transport providers in every
sense except one: only one host (the local machine) is ``connected to''
a loopback network. Loopback transports present a TPI (STREAMS-level)
interface to application processes and are intended to be accessed via
the TLI (application-level) interface. They are implemented as clone
devices and support address spaces consisting of ``flex-addresses,''
i.e., arbitrary sequences of octets, of length > 0, represented by a
netbuf structure.
ticlts is a datagram-mode transport provider. It offers (connectionless)
service of type TCLTS. Its default address size is TCLDEFAULTADDRSZ.
ticlts prints the following error messages (see trcvuderr(3N)):
TCLBADADDR bad address specification
TCLBADOPT bad option specification
TCLNOPEER bound
TCLPEERBADSTATE peer in wrong state
ticots is a virtual circuit-mode transport provider. It offers
(connection-oriented) service of type TCOTS. Its default address size
is TCODEFAULTADDRSZ. ticots prints the following disconnect messages
(see trcvdis(3N)):
TCO_NOPEER no listener on destination address
TCO_PEERNOROOMONQ peer has no room on connect queue
TCO_PEERBADSTATE peer in wrong state
TCO_PEERINITIATED peer-initiated disconnect
TCO_PROVIDERINITIATED provider-initiated disconnect
ticotsord is a virtual circuit-mode transport provider, offering service
of type TCOTSORD (connection-oriented service with orderly release).
Its default address size is TCOODEFAULTADDRSZ. ticotsord prints the
following disconnect messages (see trcvdis(3N)):
TCOO_NOPEER no listener on destination address
TCOO_PEERNOROOMONQ peer has no room on connect queue
TCOO_PEERBADSTATE peer in wrong state
TCOO_PEERINITIATED peer-initiated disconnect
TCOO_PROVIDERINITIATED provider-initiated disconnect
USAGE
Loopback transports support a local IPC mechanism through the TLI
interface. Applications implemented in a transport provider-independent
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ticlts(7) UNIX System V ticlts(7)
manner on a client-server model using this IPC are transparently
transportable to networked environments.
Transport provider-independent applications must not include the header
files listed in the synopsis section above. In particular, the options
are (like all transport provider options) provider dependent.
ticlts and ticots support the same service types (TCLTS and TCOTS)
supported by the OSI transport-level model. The use of ticlts and ticots
is encouraged.
ticotsord supports the same service type (TCOTSORD) supported by the
TCP/IP model. The use of ticotsord is discouraged except for reasons of
compatibility.
FILES
/dev/ticlts
/dev/ticots
/dev/ticotsord
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