Appropriate versions are not supplied by bind anymore.
This commit is contained in:
christos
parent
d73eb73dc8
commit
efba316dcc
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/* $NetBSD: getnetent.c,v 1.18 2007/01/27 22:27:35 christos 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
|
||||
* 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.
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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
|
||||
* 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 1.18 2007/01/27 22:27:35 christos 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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#if (defined(__sparc__) && defined(_LP64)) || \
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defined(__alpha__) || \
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(defined(__i386__) && defined(_LP64)) || \
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(defined(__sh__) && defined(_LP64))
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net.__n_pad0 = 0;
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#endif
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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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@ -0,0 +1,615 @@
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/* $NetBSD: getnetnamadr.c,v 1.37 2007/01/27 22:27:35 christos Exp $ */
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/* 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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/*
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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
|
||||
* 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.
|
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*
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* 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)
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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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#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[] = "@(#)getnetbyaddr.c 8.1 (Berkeley) 6/4/93";
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static char sccsid_[] = "from getnetnamadr.c 1.4 (Coimbra) 93/06/03";
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static char rcsid[] = "Id: getnetnamadr.c,v 8.8 1997/06/01 20:34:37 vixie Exp ";
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#else
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__RCSID("$NetBSD: getnetnamadr.c,v 1.37 2007/01/27 22:27:35 christos 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/param.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 <arpa/nameser.h>
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#include <assert.h>
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#include <ctype.h>
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#include <errno.h>
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#include <netdb.h>
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#include <nsswitch.h>
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#include <resolv.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef YP
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#include <rpc/rpc.h>
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#include <rpcsvc/yp_prot.h>
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#include <rpcsvc/ypclnt.h>
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#endif
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#ifdef __weak_alias
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__weak_alias(getnetbyaddr,_getnetbyaddr)
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__weak_alias(getnetbyname,_getnetbyname)
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#endif
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extern int _net_stayopen;
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#define BYADDR 0
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#define BYNAME 1
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#define MAXALIASES 35
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#define MAXPACKET (64*1024)
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typedef union {
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HEADER hdr;
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u_char buf[MAXPACKET];
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} querybuf;
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typedef union {
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long al;
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char ac;
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} align;
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#ifdef YP
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static char *__ypdomain;
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static char *__ypcurrent;
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static int __ypcurrentlen;
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#endif
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static struct netent net_entry;
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static char *net_aliases[MAXALIASES];
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static struct netent *getnetanswer(querybuf *, int, int);
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int _files_getnetbyaddr(void *, void *, va_list);
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int _files_getnetbyname(void *, void *, va_list);
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int _dns_getnetbyaddr(void *, void *, va_list);
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int _dns_getnetbyname(void *, void *, va_list);
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#ifdef YP
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int _yp_getnetbyaddr(void *, void *, va_list);
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int _yp_getnetbyname(void *, void *, va_list);
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struct netent *_ypnetent(char *);
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#endif
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static struct netent *
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getnetanswer(querybuf *answer, int anslen, int net_i)
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{
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HEADER *hp;
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u_char *cp;
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int n;
|
||||
u_char *eom;
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||||
int type, class, ancount, qdcount, haveanswer, i, nchar;
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char aux1[MAXDNAME], aux2[MAXDNAME], ans[MAXDNAME];
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char *in, *st, *pauxt, *bp, **ap;
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char *paux1 = &aux1[0], *paux2 = &aux2[0], *ep;
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||||
static char netbuf[PACKETSZ];
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||||
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||||
_DIAGASSERT(answer != NULL);
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||||
|
||||
/*
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||||
* find first satisfactory answer
|
||||
*
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||||
* answer --> +------------+ ( MESSAGE )
|
||||
* | Header |
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||||
* +------------+
|
||||
* | Question | the question for the name server
|
||||
* +------------+
|
||||
* | Answer | RRs answering the question
|
||||
* +------------+
|
||||
* | Authority | RRs pointing toward an authority
|
||||
* | Additional | RRs holding additional information
|
||||
* +------------+
|
||||
*/
|
||||
eom = answer->buf + anslen;
|
||||
hp = &answer->hdr;
|
||||
ancount = ntohs(hp->ancount); /* #/records in the answer section */
|
||||
qdcount = ntohs(hp->qdcount); /* #/entries in the question section */
|
||||
bp = netbuf;
|
||||
ep = netbuf + sizeof(netbuf);
|
||||
cp = answer->buf + HFIXEDSZ;
|
||||
if (!qdcount) {
|
||||
if (hp->aa)
|
||||
h_errno = HOST_NOT_FOUND;
|
||||
else
|
||||
h_errno = TRY_AGAIN;
|
||||
return NULL;
|
||||
}
|
||||
while (qdcount-- > 0) {
|
||||
n = __dn_skipname(cp, eom);
|
||||
if (n < 0 || (cp + n + QFIXEDSZ) > eom) {
|
||||
h_errno = NO_RECOVERY;
|
||||
return(NULL);
|
||||
}
|
||||
cp += n + QFIXEDSZ;
|
||||
}
|
||||
ap = net_aliases;
|
||||
*ap = NULL;
|
||||
net_entry.n_aliases = net_aliases;
|
||||
haveanswer = 0;
|
||||
while (--ancount >= 0 && cp < eom) {
|
||||
n = dn_expand(answer->buf, eom, cp, bp, ep - bp);
|
||||
if ((n < 0) || !res_dnok(bp))
|
||||
break;
|
||||
cp += n;
|
||||
ans[0] = '\0';
|
||||
(void)strlcpy(ans, bp, sizeof(ans));
|
||||
GETSHORT(type, cp);
|
||||
GETSHORT(class, cp);
|
||||
cp += INT32SZ; /* TTL */
|
||||
GETSHORT(n, cp);
|
||||
if (class == C_IN && type == T_PTR) {
|
||||
n = dn_expand(answer->buf, eom, cp, bp, ep - bp);
|
||||
if ((n < 0) || !res_hnok(bp)) {
|
||||
cp += n;
|
||||
return NULL;
|
||||
}
|
||||
cp += n;
|
||||
*ap++ = bp;
|
||||
bp += strlen(bp) + 1;
|
||||
net_entry.n_addrtype =
|
||||
(class == C_IN) ? AF_INET : AF_UNSPEC;
|
||||
haveanswer++;
|
||||
}
|
||||
}
|
||||
if (haveanswer) {
|
||||
*ap = NULL;
|
||||
switch (net_i) {
|
||||
case BYADDR:
|
||||
net_entry.n_name = *net_entry.n_aliases;
|
||||
net_entry.n_net = 0L;
|
||||
break;
|
||||
case BYNAME:
|
||||
ap = net_entry.n_aliases;
|
||||
next_alias:
|
||||
in = *ap++;
|
||||
if (in == NULL) {
|
||||
h_errno = HOST_NOT_FOUND;
|
||||
return NULL;
|
||||
}
|
||||
net_entry.n_name = ans;
|
||||
aux2[0] = '\0';
|
||||
for (i = 0; i < 4; i++) {
|
||||
for (st = in, nchar = 0;
|
||||
isdigit((unsigned char)*st);
|
||||
st++, nchar++)
|
||||
;
|
||||
if (*st != '.' || nchar == 0 || nchar > 3)
|
||||
goto next_alias;
|
||||
if (i != 0)
|
||||
nchar++;
|
||||
(void)strlcpy(paux1, in, (size_t)nchar);
|
||||
paux1[nchar] = '\0';
|
||||
pauxt = paux2;
|
||||
paux2 = strcat(paux1, paux2);
|
||||
paux1 = pauxt;
|
||||
in = ++st;
|
||||
}
|
||||
if (strcasecmp(in, "IN-ADDR.ARPA") != 0)
|
||||
goto next_alias;
|
||||
net_entry.n_net = inet_network(paux2);
|
||||
break;
|
||||
}
|
||||
net_entry.n_aliases++;
|
||||
#if (defined(__sparc__) && defined(_LP64)) || \
|
||||
defined(__alpha__) || \
|
||||
(defined(__i386__) && defined(_LP64)) || \
|
||||
(defined(__sh__) && defined(_LP64))
|
||||
net_entry.__n_pad0 = 0;
|
||||
#endif
|
||||
return &net_entry;
|
||||
}
|
||||
h_errno = TRY_AGAIN;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/*ARGSUSED*/
|
||||
int
|
||||
_files_getnetbyaddr(void *rv, void *cb_data, va_list ap)
|
||||
{
|
||||
struct netent *p;
|
||||
uint32_t net;
|
||||
int type;
|
||||
|
||||
_DIAGASSERT(rv != NULL);
|
||||
|
||||
net = va_arg(ap, uint32_t);
|
||||
type = va_arg(ap, int);
|
||||
|
||||
setnetent(_net_stayopen);
|
||||
while ((p = getnetent()) != NULL)
|
||||
if (p->n_addrtype == type && p->n_net == net)
|
||||
break;
|
||||
if (!_net_stayopen)
|
||||
endnetent();
|
||||
*((struct netent **)rv) = p;
|
||||
if (p==NULL) {
|
||||
h_errno = HOST_NOT_FOUND;
|
||||
return NS_NOTFOUND;
|
||||
}
|
||||
return NS_SUCCESS;
|
||||
}
|
||||
|
||||
/*ARGSUSED*/
|
||||
int
|
||||
_dns_getnetbyaddr(void *rv, void *cb_data, va_list ap)
|
||||
{
|
||||
unsigned int netbr[4];
|
||||
int nn, anslen;
|
||||
querybuf *buf;
|
||||
char qbuf[MAXDNAME];
|
||||
uint32_t net2;
|
||||
struct netent *np;
|
||||
uint32_t net;
|
||||
int type;
|
||||
res_state res;
|
||||
|
||||
_DIAGASSERT(rv != NULL);
|
||||
|
||||
net = va_arg(ap, uint32_t);
|
||||
type = va_arg(ap, int);
|
||||
|
||||
if (type != AF_INET)
|
||||
return NS_UNAVAIL;
|
||||
|
||||
for (nn = 4, net2 = net; net2; net2 >>= 8)
|
||||
netbr[--nn] = (unsigned int)(net2 & 0xff);
|
||||
switch (nn) {
|
||||
default:
|
||||
return NS_UNAVAIL;
|
||||
case 3: /* Class A */
|
||||
snprintf(qbuf, sizeof(qbuf), "0.0.0.%u.in-addr.arpa", netbr[3]);
|
||||
break;
|
||||
case 2: /* Class B */
|
||||
snprintf(qbuf, sizeof(qbuf), "0.0.%u.%u.in-addr.arpa",
|
||||
netbr[3], netbr[2]);
|
||||
break;
|
||||
case 1: /* Class C */
|
||||
snprintf(qbuf, sizeof(qbuf), "0.%u.%u.%u.in-addr.arpa",
|
||||
netbr[3], netbr[2], netbr[1]);
|
||||
break;
|
||||
case 0: /* Class D - E */
|
||||
snprintf(qbuf, sizeof(qbuf), "%u.%u.%u.%u.in-addr.arpa",
|
||||
netbr[3], netbr[2], netbr[1], netbr[0]);
|
||||
break;
|
||||
}
|
||||
buf = malloc(sizeof(*buf));
|
||||
if (buf == NULL) {
|
||||
h_errno = NETDB_INTERNAL;
|
||||
return NS_NOTFOUND;
|
||||
}
|
||||
res = __res_get_state();
|
||||
if (res == NULL)
|
||||
return NS_NOTFOUND;
|
||||
anslen = res_nquery(res, qbuf, C_IN, T_PTR, buf->buf, sizeof(buf->buf));
|
||||
if (anslen < 0) {
|
||||
free(buf);
|
||||
#ifdef DEBUG
|
||||
if (res->options & RES_DEBUG)
|
||||
printf("res_query failed\n");
|
||||
#endif
|
||||
__res_put_state(res);
|
||||
return NS_NOTFOUND;
|
||||
}
|
||||
__res_put_state(res);
|
||||
np = getnetanswer(buf, anslen, BYADDR);
|
||||
free(buf);
|
||||
if (np) {
|
||||
/* maybe net should be unsigned? */
|
||||
uint32_t u_net = net;
|
||||
|
||||
/* Strip trailing zeros */
|
||||
while ((u_net & 0xff) == 0 && u_net != 0)
|
||||
u_net >>= 8;
|
||||
np->n_net = u_net;
|
||||
}
|
||||
*((struct netent **)rv) = np;
|
||||
if (np == NULL) {
|
||||
h_errno = HOST_NOT_FOUND;
|
||||
return NS_NOTFOUND;
|
||||
}
|
||||
return NS_SUCCESS;
|
||||
}
|
||||
|
||||
|
||||
struct netent *
|
||||
getnetbyaddr(uint32_t net, int net_type)
|
||||
{
|
||||
struct netent *np;
|
||||
static const ns_dtab dtab[] = {
|
||||
NS_FILES_CB(_files_getnetbyaddr, NULL)
|
||||
{ NSSRC_DNS, _dns_getnetbyaddr, NULL }, /* force -DHESIOD */
|
||||
NS_NIS_CB(_yp_getnetbyaddr, NULL)
|
||||
NS_NULL_CB
|
||||
};
|
||||
|
||||
np = NULL;
|
||||
h_errno = NETDB_INTERNAL;
|
||||
if (nsdispatch(&np, dtab, NSDB_NETWORKS, "getnetbyaddr", __nsdefaultsrc,
|
||||
net, net_type) != NS_SUCCESS)
|
||||
return NULL;
|
||||
h_errno = NETDB_SUCCESS;
|
||||
return np;
|
||||
}
|
||||
|
||||
/*ARGSUSED*/
|
||||
int
|
||||
_files_getnetbyname(void *rv, void *cb_data, va_list ap)
|
||||
{
|
||||
struct netent *p;
|
||||
char **cp;
|
||||
const char *name;
|
||||
|
||||
_DIAGASSERT(rv != NULL);
|
||||
|
||||
name = va_arg(ap, const char *);
|
||||
setnetent(_net_stayopen);
|
||||
while ((p = getnetent()) != NULL) {
|
||||
if (strcasecmp(p->n_name, name) == 0)
|
||||
break;
|
||||
for (cp = p->n_aliases; *cp != 0; cp++)
|
||||
if (strcasecmp(*cp, name) == 0)
|
||||
goto found;
|
||||
}
|
||||
found:
|
||||
if (!_net_stayopen)
|
||||
endnetent();
|
||||
*((struct netent **)rv) = p;
|
||||
if (p==NULL) {
|
||||
h_errno = HOST_NOT_FOUND;
|
||||
return NS_NOTFOUND;
|
||||
}
|
||||
return NS_SUCCESS;
|
||||
}
|
||||
|
||||
/*ARGSUSED*/
|
||||
int
|
||||
_dns_getnetbyname(void *rv, void *cb_data, va_list ap)
|
||||
{
|
||||
int anslen;
|
||||
querybuf *buf;
|
||||
char qbuf[MAXDNAME];
|
||||
struct netent *np;
|
||||
const char *net;
|
||||
res_state res;
|
||||
|
||||
_DIAGASSERT(rv != NULL);
|
||||
|
||||
net = va_arg(ap, const char *);
|
||||
strlcpy(&qbuf[0], net, sizeof(qbuf));
|
||||
buf = malloc(sizeof(*buf));
|
||||
if (buf == NULL) {
|
||||
h_errno = NETDB_INTERNAL;
|
||||
return NS_NOTFOUND;
|
||||
}
|
||||
res = __res_get_state();
|
||||
if (res == NULL) {
|
||||
free(buf);
|
||||
return NS_NOTFOUND;
|
||||
}
|
||||
anslen = res_nsearch(res, qbuf, C_IN, T_PTR, buf->buf,
|
||||
sizeof(buf->buf));
|
||||
if (anslen < 0) {
|
||||
free(buf);
|
||||
#ifdef DEBUG
|
||||
if (res->options & RES_DEBUG)
|
||||
printf("res_search failed\n");
|
||||
#endif
|
||||
__res_put_state(res);
|
||||
return NS_NOTFOUND;
|
||||
}
|
||||
__res_put_state(res);
|
||||
np = getnetanswer(buf, anslen, BYNAME);
|
||||
free(buf);
|
||||
*((struct netent **)rv) = np;
|
||||
if (np == NULL) {
|
||||
h_errno = HOST_NOT_FOUND;
|
||||
return NS_NOTFOUND;
|
||||
}
|
||||
return NS_SUCCESS;
|
||||
}
|
||||
|
||||
struct netent *
|
||||
getnetbyname(const char *net)
|
||||
{
|
||||
struct netent *np;
|
||||
static const ns_dtab dtab[] = {
|
||||
NS_FILES_CB(_files_getnetbyname, NULL)
|
||||
{ NSSRC_DNS, _dns_getnetbyname, NULL }, /* force -DHESIOD */
|
||||
NS_NIS_CB(_yp_getnetbyname, NULL)
|
||||
NS_NULL_CB
|
||||
};
|
||||
|
||||
_DIAGASSERT(net != NULL);
|
||||
|
||||
np = NULL;
|
||||
h_errno = NETDB_INTERNAL;
|
||||
if (nsdispatch(&np, dtab, NSDB_NETWORKS, "getnetbyname", __nsdefaultsrc,
|
||||
net) != NS_SUCCESS)
|
||||
return NULL;
|
||||
h_errno = NETDB_SUCCESS;
|
||||
return np;
|
||||
}
|
||||
|
||||
#ifdef YP
|
||||
/*ARGSUSED*/
|
||||
int
|
||||
_yp_getnetbyaddr(void *rv, void *cb_data, va_list ap)
|
||||
{
|
||||
struct netent *np;
|
||||
char qbuf[MAXDNAME];
|
||||
unsigned int netbr[4];
|
||||
uint32_t net, net2;
|
||||
int type, r;
|
||||
|
||||
_DIAGASSERT(rv != NULL);
|
||||
|
||||
net = va_arg(ap, uint32_t);
|
||||
type = va_arg(ap, int);
|
||||
|
||||
if (type != AF_INET)
|
||||
return NS_UNAVAIL;
|
||||
|
||||
if (!__ypdomain) {
|
||||
if (_yp_check(&__ypdomain) == 0)
|
||||
return NS_UNAVAIL;
|
||||
}
|
||||
np = NULL;
|
||||
if (__ypcurrent)
|
||||
free(__ypcurrent);
|
||||
__ypcurrent = NULL;
|
||||
for (r = 4, net2 = net; net2; net2 >>= 8)
|
||||
netbr[--r] = (unsigned int)(net2 & 0xff);
|
||||
switch (r) {
|
||||
default:
|
||||
return NS_UNAVAIL;
|
||||
case 3: /* Class A */
|
||||
snprintf(qbuf, sizeof(qbuf), "%u", netbr[3]);
|
||||
break;
|
||||
case 2: /* Class B */
|
||||
snprintf(qbuf, sizeof(qbuf), "%u.%u", netbr[2], netbr[3]);
|
||||
break;
|
||||
case 1: /* Class C */
|
||||
snprintf(qbuf, sizeof(qbuf), "%u.%u.%u", netbr[1], netbr[2],
|
||||
netbr[3]);
|
||||
break;
|
||||
case 0: /* Class D - E */
|
||||
snprintf(qbuf, sizeof(qbuf), "%u.%u.%u.%u", netbr[0], netbr[1],
|
||||
netbr[2], netbr[3]);
|
||||
break;
|
||||
}
|
||||
r = yp_match(__ypdomain, "networks.byaddr", qbuf, (int)strlen(qbuf),
|
||||
&__ypcurrent, &__ypcurrentlen);
|
||||
if (r == 0)
|
||||
np = _ypnetent(__ypcurrent);
|
||||
|
||||
*((struct netent **)rv) = np;
|
||||
if (np == NULL) {
|
||||
h_errno = HOST_NOT_FOUND;
|
||||
return NS_NOTFOUND;
|
||||
}
|
||||
return NS_SUCCESS;
|
||||
|
||||
}
|
||||
|
||||
int
|
||||
/*ARGSUSED*/
|
||||
_yp_getnetbyname(void *rv, void *cb_data, va_list ap)
|
||||
{
|
||||
struct netent *np;
|
||||
const char *name;
|
||||
int r;
|
||||
|
||||
_DIAGASSERT(rv != NULL);
|
||||
|
||||
name = va_arg(ap, const char *);
|
||||
|
||||
if (!__ypdomain) {
|
||||
if (_yp_check(&__ypdomain) == 0)
|
||||
return NS_UNAVAIL;
|
||||
}
|
||||
np = NULL;
|
||||
if (__ypcurrent)
|
||||
free(__ypcurrent);
|
||||
__ypcurrent = NULL;
|
||||
r = yp_match(__ypdomain, "networks.byname", name, (int)strlen(name),
|
||||
&__ypcurrent, &__ypcurrentlen);
|
||||
if (r == 0)
|
||||
np = _ypnetent(__ypcurrent);
|
||||
|
||||
*((struct netent **)rv) = np;
|
||||
if (np == NULL) {
|
||||
h_errno = HOST_NOT_FOUND;
|
||||
return NS_NOTFOUND;
|
||||
}
|
||||
return NS_SUCCESS;
|
||||
}
|
||||
|
||||
struct netent *
|
||||
_ypnetent(char *line)
|
||||
{
|
||||
char *cp, *p, **q;
|
||||
|
||||
_DIAGASSERT(line != NULL);
|
||||
|
||||
net_entry.n_name = line;
|
||||
cp = strpbrk(line, " \t");
|
||||
if (cp == NULL)
|
||||
return NULL;
|
||||
*cp++ = '\0';
|
||||
while (*cp == ' ' || *cp == '\t')
|
||||
cp++;
|
||||
p = strpbrk(cp, " \t");
|
||||
if (p != NULL)
|
||||
*p++ = '\0';
|
||||
net_entry.n_net = inet_network(cp);
|
||||
#if (defined(__sparc__) && defined(_LP64)) || \
|
||||
defined(__alpha__) || \
|
||||
(defined(__i386__) && defined(_LP64)) || \
|
||||
(defined(__sh__) && defined(_LP64))
|
||||
net_entry.__n_pad0 = 0;
|
||||
#endif
|
||||
net_entry.n_addrtype = AF_INET;
|
||||
q = net_entry.n_aliases = net_aliases;
|
||||
if (p != NULL) {
|
||||
cp = p;
|
||||
while (cp && *cp) {
|
||||
if (*cp == ' ' || *cp == '\t') {
|
||||
cp++;
|
||||
continue;
|
||||
}
|
||||
if (q < &net_aliases[MAXALIASES - 1])
|
||||
*q++ = cp;
|
||||
cp = strpbrk(cp, " \t");
|
||||
if (cp != NULL)
|
||||
*cp++ = '\0';
|
||||
}
|
||||
}
|
||||
*q = NULL;
|
||||
|
||||
return &net_entry;
|
||||
}
|
||||
#endif
|
||||
|
|
@ -0,0 +1,82 @@
|
|||
/* $NetBSD: sethostent.c,v 1.16 2007/01/27 22:27:35 christos Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1985, 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.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
#if 0
|
||||
static char sccsid[] = "@(#)sethostent.c 8.1 (Berkeley) 6/4/93";
|
||||
static char rcsid[] = "Id: sethostent.c,v 8.5 1996/09/28 06:51:07 vixie Exp ";
|
||||
#else
|
||||
__RCSID("$NetBSD: sethostent.c,v 1.16 2007/01/27 22:27:35 christos Exp $");
|
||||
#endif
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
#include "namespace.h"
|
||||
#include <sys/param.h>
|
||||
#include <netinet/in.h>
|
||||
#include <arpa/nameser.h>
|
||||
#include <netdb.h>
|
||||
#include <resolv.h>
|
||||
|
||||
#ifdef __weak_alias
|
||||
__weak_alias(sethostent,_sethostent)
|
||||
__weak_alias(endhostent,_endhostent)
|
||||
#endif
|
||||
|
||||
void _endhtent __P((void));
|
||||
#ifndef _REENTRANT
|
||||
void res_close __P((void));
|
||||
#endif
|
||||
void _sethtent __P((int));
|
||||
|
||||
void
|
||||
/*ARGSUSED*/
|
||||
sethostent(stayopen)
|
||||
int stayopen;
|
||||
{
|
||||
#ifndef _REENTRANT
|
||||
if ((_res.options & RES_INIT) == 0 && res_init() == -1)
|
||||
return;
|
||||
if (stayopen)
|
||||
_res.options |= RES_STAYOPEN | RES_USEVC;
|
||||
#endif
|
||||
_sethtent(stayopen);
|
||||
}
|
||||
|
||||
void
|
||||
endhostent()
|
||||
{
|
||||
#ifndef _REENTRANT
|
||||
_res.options &= ~(RES_STAYOPEN | RES_USEVC);
|
||||
res_close();
|
||||
#endif
|
||||
_endhtent();
|
||||
}
|
||||
Loading…
Reference in New Issue