1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 1991-2002 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate * 26*7c478bd9Sstevel@tonic-gate * lib/libnsl/nss/gethostent6.c 27*7c478bd9Sstevel@tonic-gate * 28*7c478bd9Sstevel@tonic-gate * This file defines and implements the re-entrant enumeration routines for 29*7c478bd9Sstevel@tonic-gate * IPv6 hosts: sethostent6(), gethostent6(), and endhostent6(). 30*7c478bd9Sstevel@tonic-gate * They consult the switch policy directly and do not "share" their 31*7c478bd9Sstevel@tonic-gate * enumeration state nor the stayopen flag with the implentation of the 32*7c478bd9Sstevel@tonic-gate * more commonly used getipnodebyname()/getipnodebyaddr(). The latter 33*7c478bd9Sstevel@tonic-gate * follows a tortuous route in order to be consistent with netdir_getbyYY() 34*7c478bd9Sstevel@tonic-gate * (see getipnodebyname.c and netdir_inet.c). 35*7c478bd9Sstevel@tonic-gate */ 36*7c478bd9Sstevel@tonic-gate 37*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 38*7c478bd9Sstevel@tonic-gate 39*7c478bd9Sstevel@tonic-gate #include <sys/socket.h> 40*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 41*7c478bd9Sstevel@tonic-gate #include <nss_dbdefs.h> 42*7c478bd9Sstevel@tonic-gate #include <rpc/trace.h> 43*7c478bd9Sstevel@tonic-gate #include "nss.h" 44*7c478bd9Sstevel@tonic-gate 45*7c478bd9Sstevel@tonic-gate static int ipnodes_stayopen; 46*7c478bd9Sstevel@tonic-gate /* 47*7c478bd9Sstevel@tonic-gate * Unsynchronized, but it affects only 48*7c478bd9Sstevel@tonic-gate * efficiency, not correctness 49*7c478bd9Sstevel@tonic-gate */ 50*7c478bd9Sstevel@tonic-gate 51*7c478bd9Sstevel@tonic-gate static DEFINE_NSS_DB_ROOT(db_root); 52*7c478bd9Sstevel@tonic-gate static DEFINE_NSS_GETENT(context); 53*7c478bd9Sstevel@tonic-gate 54*7c478bd9Sstevel@tonic-gate /* IPv6 wrapper for __str2hostent() */ 55*7c478bd9Sstevel@tonic-gate int 56*7c478bd9Sstevel@tonic-gate str2hostent6(const char *instr, int lenstr, void *ent, char *buffer, int buflen) 57*7c478bd9Sstevel@tonic-gate { 58*7c478bd9Sstevel@tonic-gate return (__str2hostent(AF_INET6, instr, lenstr, ent, buffer, buflen)); 59*7c478bd9Sstevel@tonic-gate } 60*7c478bd9Sstevel@tonic-gate 61*7c478bd9Sstevel@tonic-gate void 62*7c478bd9Sstevel@tonic-gate _nss_initf_ipnodes(nss_db_params_t *p) 63*7c478bd9Sstevel@tonic-gate { 64*7c478bd9Sstevel@tonic-gate trace1(TR__nss_initf_ipnodes, 0); 65*7c478bd9Sstevel@tonic-gate p->name = NSS_DBNAM_IPNODES; 66*7c478bd9Sstevel@tonic-gate p->default_config = NSS_DEFCONF_IPNODES; 67*7c478bd9Sstevel@tonic-gate trace1(TR__nss_initf_ipnodes, 1); 68*7c478bd9Sstevel@tonic-gate } 69*7c478bd9Sstevel@tonic-gate 70*7c478bd9Sstevel@tonic-gate int 71*7c478bd9Sstevel@tonic-gate __sethostent6(int stay) 72*7c478bd9Sstevel@tonic-gate { 73*7c478bd9Sstevel@tonic-gate trace1(TR_sethostent6, 0); 74*7c478bd9Sstevel@tonic-gate ipnodes_stayopen |= stay; 75*7c478bd9Sstevel@tonic-gate nss_setent(&db_root, _nss_initf_ipnodes, &context); 76*7c478bd9Sstevel@tonic-gate trace1(TR_sethostent6, 1); 77*7c478bd9Sstevel@tonic-gate return (0); 78*7c478bd9Sstevel@tonic-gate } 79*7c478bd9Sstevel@tonic-gate 80*7c478bd9Sstevel@tonic-gate int 81*7c478bd9Sstevel@tonic-gate __endhostent6(void) 82*7c478bd9Sstevel@tonic-gate { 83*7c478bd9Sstevel@tonic-gate trace1(TR_endhostent6, 0); 84*7c478bd9Sstevel@tonic-gate ipnodes_stayopen = 0; 85*7c478bd9Sstevel@tonic-gate nss_endent(&db_root, _nss_initf_ipnodes, &context); 86*7c478bd9Sstevel@tonic-gate nss_delete(&db_root); 87*7c478bd9Sstevel@tonic-gate trace1(TR_endhostent6, 1); 88*7c478bd9Sstevel@tonic-gate return (0); 89*7c478bd9Sstevel@tonic-gate } 90*7c478bd9Sstevel@tonic-gate 91*7c478bd9Sstevel@tonic-gate struct hostent * 92*7c478bd9Sstevel@tonic-gate __gethostent6(struct hostent *result, char *buffer, int buflen, int *h_errnop) 93*7c478bd9Sstevel@tonic-gate { 94*7c478bd9Sstevel@tonic-gate nss_XbyY_args_t arg; 95*7c478bd9Sstevel@tonic-gate nss_status_t res; 96*7c478bd9Sstevel@tonic-gate 97*7c478bd9Sstevel@tonic-gate trace2(TR_gethostent6, 0, buflen); 98*7c478bd9Sstevel@tonic-gate NSS_XbyY_INIT(&arg, result, buffer, buflen, str2hostent6); 99*7c478bd9Sstevel@tonic-gate res = nss_getent(&db_root, _nss_initf_ipnodes, 100*7c478bd9Sstevel@tonic-gate &context, &arg); 101*7c478bd9Sstevel@tonic-gate arg.status = res; 102*7c478bd9Sstevel@tonic-gate *h_errnop = arg.h_errno; 103*7c478bd9Sstevel@tonic-gate trace2(TR_gethostent6, 1, buflen); 104*7c478bd9Sstevel@tonic-gate return ((struct hostent *)NSS_XbyY_FINI(&arg)); 105*7c478bd9Sstevel@tonic-gate } 106