43fa6fe319
identifier namespace by renaming non standard functions and variables such that they have a leading underscore. The library will use those names internally. Weak aliases are used to provide the original names to the API. This is only the first part of this change. It is most of the functions which are implemented in C for all NetBSD ports. Subsequent changes are to add the same support to the remaining C files, to assembly files, and to the automagically generated assembly source used for system calls. When all of the above is done, ports with weak alias support should add a definition for __weak_alias to <sys/cdefs.h>.
156 lines
4.8 KiB
C
156 lines
4.8 KiB
C
/* $NetBSD: nsap_addr.c,v 1.5 1997/07/21 14:08:09 jtc Exp $ */
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/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Copyright (c) 1996 by Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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#if 0
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static char rcsid[] = "$Id: nsap_addr.c,v 8.3 1996/08/05 08:31:35 vixie Exp ";
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#else
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__RCSID("$NetBSD: nsap_addr.c,v 1.5 1997/07/21 14:08:09 jtc Exp $");
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#endif
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#endif /* LIBC_SCCS and not lint */
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#include "namespace.h"
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/nameser.h>
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#include <arpa/inet.h>
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#include <ctype.h>
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#include <resolv.h>
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#ifdef __weak_alias
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__weak_alias(inet_nsap_addr,_inet_nsap_addr);
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__weak_alias(inet_nsap_ntoa,_inet_nsap_ntoa);
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#endif
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static char xtob __P((int));
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static char
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xtob(c)
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register int c;
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{
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return (c - (((c >= '0') && (c <= '9')) ? '0' : '7'));
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}
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/* These have to be here for BIND and its utilities (DiG, nslookup, et al)
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* but should not be promulgated since the calling interface is not pretty.
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* (They do, however, implement the RFC standard way of representing ISO NSAPs
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* and as such, are preferred over the more general iso_addr.c routines.
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*/
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u_int
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inet_nsap_addr(ascii, binary, maxlen)
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const char *ascii;
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u_char *binary;
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int maxlen;
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{
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register u_char c, nib;
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u_int len = 0;
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while ((c = *ascii++) != '\0' && len < maxlen) {
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if (c == '.' || c == '+' || c == '/')
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continue;
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if (!isascii(c))
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return (0);
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if (islower(c))
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c = toupper(c);
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if (isxdigit(c)) {
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nib = xtob(c);
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if ((c = *ascii++) != '\0') {
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c = toupper(c);
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if (isxdigit(c)) {
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*binary++ = (nib << 4) | xtob(c);
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len++;
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} else
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return (0);
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}
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else
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return (0);
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}
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else
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return (0);
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}
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return (len);
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}
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char *
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inet_nsap_ntoa(binlen, binary, ascii)
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int binlen;
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register const u_char *binary;
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register char *ascii;
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{
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register int nib;
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int i;
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static char tmpbuf[255*3];
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char *start;
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if (ascii)
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start = ascii;
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else {
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ascii = tmpbuf;
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start = tmpbuf;
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}
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if (binlen > 255)
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binlen = 255;
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for (i = 0; i < binlen; i++) {
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nib = *binary >> 4;
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*ascii++ = nib + (nib < 10 ? '0' : '7');
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nib = *binary++ & 0x0f;
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*ascii++ = nib + (nib < 10 ? '0' : '7');
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if (((i % 2) == 0 && (i + 1) < binlen))
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*ascii++ = '.';
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}
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*ascii = '\0';
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return (start);
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}
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