17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate  * with the License.
87c478bd9Sstevel@tonic-gate  *
97c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate  * and limitations under the License.
137c478bd9Sstevel@tonic-gate  *
147c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate  *
207c478bd9Sstevel@tonic-gate  * CDDL HEADER END
217c478bd9Sstevel@tonic-gate  */
2261961e0fSrobinson 
237c478bd9Sstevel@tonic-gate /*
24*e8031f0aSraf  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
257c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
26*e8031f0aSraf  */
27*e8031f0aSraf 
28*e8031f0aSraf /*
297c478bd9Sstevel@tonic-gate  * This file defines and implements the re-entrant enumeration routines for
307c478bd9Sstevel@tonic-gate  *   IPv6 hosts: sethostent6(), gethostent6(), and endhostent6().
317c478bd9Sstevel@tonic-gate  *   They consult the switch policy directly and do not "share" their
327c478bd9Sstevel@tonic-gate  *   enumeration state nor the stayopen flag with the implentation of the
337c478bd9Sstevel@tonic-gate  *   more commonly used getipnodebyname()/getipnodebyaddr(). The latter
347c478bd9Sstevel@tonic-gate  *   follows a tortuous route in order to be consistent with netdir_getbyYY()
357c478bd9Sstevel@tonic-gate  *   (see getipnodebyname.c and netdir_inet.c).
367c478bd9Sstevel@tonic-gate  */
377c478bd9Sstevel@tonic-gate 
387c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
397c478bd9Sstevel@tonic-gate 
40*e8031f0aSraf #include "mt.h"
417c478bd9Sstevel@tonic-gate #include <sys/socket.h>
427c478bd9Sstevel@tonic-gate #include <sys/types.h>
437c478bd9Sstevel@tonic-gate #include <nss_dbdefs.h>
447c478bd9Sstevel@tonic-gate #include "nss.h"
457c478bd9Sstevel@tonic-gate 
467c478bd9Sstevel@tonic-gate static int ipnodes_stayopen;
477c478bd9Sstevel@tonic-gate /*
487c478bd9Sstevel@tonic-gate  * Unsynchronized, but it affects only
497c478bd9Sstevel@tonic-gate  * efficiency, not correctness
507c478bd9Sstevel@tonic-gate  */
517c478bd9Sstevel@tonic-gate 
527c478bd9Sstevel@tonic-gate static DEFINE_NSS_DB_ROOT(db_root);
537c478bd9Sstevel@tonic-gate static DEFINE_NSS_GETENT(context);
547c478bd9Sstevel@tonic-gate 
557c478bd9Sstevel@tonic-gate /* IPv6 wrapper for __str2hostent() */
567c478bd9Sstevel@tonic-gate int
str2hostent6(const char * instr,int lenstr,void * ent,char * buffer,int buflen)577c478bd9Sstevel@tonic-gate str2hostent6(const char *instr, int lenstr, void *ent, char *buffer, int buflen)
587c478bd9Sstevel@tonic-gate {
597c478bd9Sstevel@tonic-gate 	return (__str2hostent(AF_INET6, instr, lenstr, ent, buffer, buflen));
607c478bd9Sstevel@tonic-gate }
617c478bd9Sstevel@tonic-gate 
627c478bd9Sstevel@tonic-gate void
_nss_initf_ipnodes(nss_db_params_t * p)637c478bd9Sstevel@tonic-gate _nss_initf_ipnodes(nss_db_params_t *p)
647c478bd9Sstevel@tonic-gate {
657c478bd9Sstevel@tonic-gate 	p->name	= NSS_DBNAM_IPNODES;
667c478bd9Sstevel@tonic-gate 	p->default_config = NSS_DEFCONF_IPNODES;
677c478bd9Sstevel@tonic-gate }
687c478bd9Sstevel@tonic-gate 
697c478bd9Sstevel@tonic-gate int
__sethostent6(int stay)707c478bd9Sstevel@tonic-gate __sethostent6(int stay)
717c478bd9Sstevel@tonic-gate {
727c478bd9Sstevel@tonic-gate 	ipnodes_stayopen |= stay;
737c478bd9Sstevel@tonic-gate 	nss_setent(&db_root, _nss_initf_ipnodes, &context);
747c478bd9Sstevel@tonic-gate 	return (0);
757c478bd9Sstevel@tonic-gate }
767c478bd9Sstevel@tonic-gate 
777c478bd9Sstevel@tonic-gate int
__endhostent6(void)787c478bd9Sstevel@tonic-gate __endhostent6(void)
797c478bd9Sstevel@tonic-gate {
807c478bd9Sstevel@tonic-gate 	ipnodes_stayopen = 0;
817c478bd9Sstevel@tonic-gate 	nss_endent(&db_root, _nss_initf_ipnodes, &context);
827c478bd9Sstevel@tonic-gate 	nss_delete(&db_root);
837c478bd9Sstevel@tonic-gate 	return (0);
847c478bd9Sstevel@tonic-gate }
857c478bd9Sstevel@tonic-gate 
867c478bd9Sstevel@tonic-gate struct hostent *
__gethostent6(struct hostent * result,char * buffer,int buflen,int * h_errnop)877c478bd9Sstevel@tonic-gate __gethostent6(struct hostent *result, char *buffer, int buflen, int *h_errnop)
887c478bd9Sstevel@tonic-gate {
897c478bd9Sstevel@tonic-gate 	nss_XbyY_args_t arg;
907c478bd9Sstevel@tonic-gate 	nss_status_t	res;
917c478bd9Sstevel@tonic-gate 
927c478bd9Sstevel@tonic-gate 	NSS_XbyY_INIT(&arg, result, buffer, buflen, str2hostent6);
937c478bd9Sstevel@tonic-gate 	res = nss_getent(&db_root, _nss_initf_ipnodes,
947c478bd9Sstevel@tonic-gate 	    &context, &arg);
957c478bd9Sstevel@tonic-gate 	arg.status = res;
967c478bd9Sstevel@tonic-gate 	*h_errnop = arg.h_errno;
977c478bd9Sstevel@tonic-gate 	return ((struct hostent *)NSS_XbyY_FINI(&arg));
987c478bd9Sstevel@tonic-gate }
99