65 lines
2.8 KiB
Perl
65 lines
2.8 KiB
Perl
.\" $NetBSD: 1.t,v 1.4 2003/08/07 10:30:55 agc Exp $
|
|
.\"
|
|
.\" Copyright (c) 1983, 1986, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)1.t 8.1 (Berkeley) 6/8/93
|
|
.\"
|
|
.\".ds RH Introduction
|
|
.br
|
|
.ne 2i
|
|
.NH
|
|
\s+2Introduction\s0
|
|
.PP
|
|
This report describes the internal structure of
|
|
facilities added to the
|
|
4.2BSD version of the UNIX operating system for
|
|
the VAX,
|
|
as modified in the 4.4BSD release.
|
|
The system facilities provide
|
|
a uniform user interface to networking
|
|
within UNIX. In addition, the implementation
|
|
introduces a structure for network communications which may be
|
|
used by system implementors in adding new networking
|
|
facilities. The internal structure is not visible
|
|
to the user, rather it is intended to aid implementors
|
|
of communication protocols and network services by
|
|
providing a framework which
|
|
promotes code sharing and minimizes implementation effort.
|
|
.PP
|
|
The reader is expected to be familiar with the C programming
|
|
language and system interface, as described in the
|
|
\fIBerkeley Software Architecture Manual, 4.4BSD Edition\fP [Joy86].
|
|
Basic understanding of network
|
|
communication concepts is assumed; where required
|
|
any additional ideas are introduced.
|
|
.PP
|
|
The remainder of this document
|
|
provides a description of the system internals,
|
|
avoiding, when possible, those portions which are used only
|
|
by the interprocess communication facilities.
|