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>.
169 lines
4.3 KiB
C
169 lines
4.3 KiB
C
/* $NetBSD: getnetent.c,v 1.11 1997/07/21 14:07:56 jtc Exp $ */
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/*
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* Copyright (c) 1983, 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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* Portions Copyright (c) 1993 Carlos Leandro and Rui Salgueiro
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* Dep. Matematica Universidade de Coimbra, Portugal, Europe
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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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* from getnetent.c 1.1 (Coimbra) 93/06/02
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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 sccsid[] = "@(#)getnetent.c 8.1 (Berkeley) 6/4/93";
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static char rcsid[] = "$Id: getnetent.c,v 8.4 1997/06/01 20:34:37 vixie Exp ";
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#else
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__RCSID("$NetBSD: getnetent.c,v 1.11 1997/07/21 14:07:56 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/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <string.h>
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#ifdef __weak_alias
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__weak_alias(endnetent,_endnetent);
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__weak_alias(getnetent,_getnetent);
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__weak_alias(setnetent,_setnetent);
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#endif
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#define MAXALIASES 35
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static FILE *netf;
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static char line[BUFSIZ+1];
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static struct netent net;
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static char *net_aliases[MAXALIASES];
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int _net_stayopen;
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static void __setnetent __P((int));
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static void __endnetent __P((void));
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void
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setnetent(stayopen)
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int stayopen;
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{
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sethostent(stayopen);
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__setnetent(stayopen);
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}
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void
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endnetent()
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{
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endhostent();
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__endnetent();
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}
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static void
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__setnetent(f)
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int f;
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{
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if (netf == NULL)
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netf = fopen(_PATH_NETWORKS, "r" );
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else
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rewind(netf);
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_net_stayopen |= f;
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}
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static void
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__endnetent()
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{
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if (netf) {
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fclose(netf);
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netf = NULL;
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}
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_net_stayopen = 0;
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}
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struct netent *
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getnetent()
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{
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char *p;
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register char *cp, **q;
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if (netf == NULL && (netf = fopen(_PATH_NETWORKS, "r" )) == NULL)
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return (NULL);
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again:
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p = fgets(line, sizeof line, netf);
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if (p == NULL)
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return (NULL);
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if (*p == '#')
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goto again;
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cp = strpbrk(p, "#\n");
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if (cp == NULL)
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goto again;
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*cp = '\0';
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net.n_name = p;
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cp = strpbrk(p, " \t");
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if (cp == NULL)
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goto again;
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*cp++ = '\0';
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while (*cp == ' ' || *cp == '\t')
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cp++;
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p = strpbrk(cp, " \t");
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if (p != NULL)
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*p++ = '\0';
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net.n_net = inet_network(cp);
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net.n_addrtype = AF_INET;
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q = net.n_aliases = net_aliases;
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if (p != NULL) {
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cp = p;
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while (cp && *cp) {
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if (*cp == ' ' || *cp == '\t') {
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cp++;
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continue;
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}
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if (q < &net_aliases[MAXALIASES - 1])
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*q++ = cp;
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cp = strpbrk(cp, " \t");
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if (cp != NULL)
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*cp++ = '\0';
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}
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}
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*q = NULL;
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return (&net);
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}
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