From 39e6e65a2c5a3312f365d59f23c469641e049c82 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Wed, 19 Aug 1998 21:32:28 +0000 Subject: Base files --- cpukit/libnetworking/libc/iso_addr.3 | 110 +++++++++++++++++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 cpukit/libnetworking/libc/iso_addr.3 (limited to 'cpukit/libnetworking/libc/iso_addr.3') diff --git a/cpukit/libnetworking/libc/iso_addr.3 b/cpukit/libnetworking/libc/iso_addr.3 new file mode 100644 index 0000000000..05653735c3 --- /dev/null +++ b/cpukit/libnetworking/libc/iso_addr.3 @@ -0,0 +1,110 @@ +.\" 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 +.\" +.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 +.Fd #include +.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 +.. +.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. -- cgit v1.2.3