1994-05-27 05:00:24 +00:00
|
|
|
.\" Copyright (c) 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. All advertising materials mentioning features or use of this software
|
|
|
|
|
.\" must display the following acknowledgement:
|
|
|
|
|
.\" This product includes software developed by the University of
|
|
|
|
|
.\" California, Berkeley and its contributors.
|
|
|
|
|
.\" 4. 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.
|
|
|
|
|
.\"
|
|
|
|
|
.\" @(#)iso_addr.3 8.1 (Berkeley) 6/4/93
|
1999-08-28 00:22:10 +00:00
|
|
|
.\" $FreeBSD$
|
1994-05-27 05:00:24 +00:00
|
|
|
.\"
|
|
|
|
|
.Dd June 4, 1993
|
|
|
|
|
.Dt ISO_ADDR 3
|
|
|
|
|
.Os
|
|
|
|
|
.Sh NAME
|
|
|
|
|
.Nm iso_addr ,
|
|
|
|
|
.Nm iso_ntoa
|
|
|
|
|
.Nd "elementary network address conversion routines for Open System Interconnection
|
|
|
|
|
.Sh SYNOPSIS
|
|
|
|
|
.Fd #include <sys/types.h>
|
|
|
|
|
.Fd #include <netiso/iso.h>
|
|
|
|
|
.Ft struct iso_addr *
|
|
|
|
|
.Fn iso_addr "char *cp"
|
|
|
|
|
.Ft char *
|
|
|
|
|
.Fn iso_ntoa "struct iso_addr *isoa"
|
|
|
|
|
.Sh DESCRIPTION
|
|
|
|
|
The routine
|
|
|
|
|
.Fn iso_addr
|
|
|
|
|
interprets character strings representing
|
|
|
|
|
.Tn OSI
|
|
|
|
|
addresses, returning binary information suitable
|
|
|
|
|
for use in system calls.
|
|
|
|
|
The routine
|
|
|
|
|
.Fn iso_ntoa
|
|
|
|
|
takes
|
|
|
|
|
.Tn OSI
|
|
|
|
|
addresses and returns
|
|
|
|
|
.Tn ASCII
|
|
|
|
|
strings representing NSAPs (network service
|
|
|
|
|
access points) in a
|
|
|
|
|
notation inverse to that accepted by
|
|
|
|
|
.Fn iso_addr .
|
|
|
|
|
.Pp
|
|
|
|
|
Unfortunately, no universal standard exists for representing
|
|
|
|
|
.Tn OSI
|
|
|
|
|
network addresses.
|
|
|
|
|
.Pp
|
|
|
|
|
The format employed by
|
|
|
|
|
.Fn iso_addr
|
|
|
|
|
is a sequence of hexadecimal
|
|
|
|
|
.Dq digits
|
|
|
|
|
(optionally separated by periods),
|
|
|
|
|
of the form:
|
|
|
|
|
.Bd -filled -offset indent
|
|
|
|
|
<hex digits>.<hex digits>.<hex digits>
|
|
|
|
|
.Ed
|
|
|
|
|
.Pp
|
|
|
|
|
Each pair of hexadecimal digits represents a byte
|
|
|
|
|
with the leading digit indicating the higher-ordered bits.
|
|
|
|
|
A period following an even number of bytes has no
|
|
|
|
|
effect (but may be used to increase legibility).
|
|
|
|
|
A period following an odd number of bytes has the
|
|
|
|
|
effect of causing the byte of address being translated
|
|
|
|
|
to have its higher order bits filled with zeros.
|
|
|
|
|
.Sh RETURN VALUES
|
|
|
|
|
.Fn iso_ntoa
|
|
|
|
|
always returns a null terminated string.
|
|
|
|
|
.Fn iso_addr
|
|
|
|
|
always returns a pointer to a struct iso_addr.
|
|
|
|
|
(See
|
|
|
|
|
.Sx BUGS . )
|
|
|
|
|
.Sh SEE ALSO
|
|
|
|
|
.Xr iso 4
|
|
|
|
|
.Sh HISTORY
|
|
|
|
|
The
|
|
|
|
|
.Fn iso_addr
|
|
|
|
|
and
|
|
|
|
|
.Fn iso_ntoa
|
|
|
|
|
functions appeared in
|
|
|
|
|
.Bx 4.3 Reno .
|
|
|
|
|
.Sh BUGS
|
|
|
|
|
The returned values
|
|
|
|
|
reside in a static memory area.
|
|
|
|
|
.Pp
|
|
|
|
|
The function
|
|
|
|
|
.Fn iso_addr
|
|
|
|
|
should diagnose improperly formed input, and there should be an unambiguous
|
|
|
|
|
way to recognize this.
|
