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 5cb5caa98Sdjl * Common Development and Distribution License (the "License"). 6cb5caa98Sdjl * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 2187a231a8Sjbeck 227c478bd9Sstevel@tonic-gate /* 23*7257d1b4Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24cb5caa98Sdjl * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate /* 307c478bd9Sstevel@tonic-gate * gethostent.c 317c478bd9Sstevel@tonic-gate * 327c478bd9Sstevel@tonic-gate * In order to avoid duplicating libresolv code here, and since libresolv.so.2 337c478bd9Sstevel@tonic-gate * provides res_-equivalents of the getXbyY and {set,get}Xent, lets call 347c478bd9Sstevel@tonic-gate * re_gethostbyaddr() and so on from this file. Among other things, this 357c478bd9Sstevel@tonic-gate * should help us avoid problems like the one described in bug 1264386, 367c478bd9Sstevel@tonic-gate * where the internal getanswer() acquired new functionality in BIND 4.9.3, 377c478bd9Sstevel@tonic-gate * but the local copy of getanswer() in this file wasn't updated, so that new 387c478bd9Sstevel@tonic-gate * functionality wasn't available to the name service switch. 397c478bd9Sstevel@tonic-gate */ 407c478bd9Sstevel@tonic-gate 417c478bd9Sstevel@tonic-gate #define gethostbyaddr res_gethostbyaddr 427c478bd9Sstevel@tonic-gate #define gethostbyname res_gethostbyname 437c478bd9Sstevel@tonic-gate #define gethostbyname2 res_gethostbyname2 447c478bd9Sstevel@tonic-gate #define sethostent res_sethostent 457c478bd9Sstevel@tonic-gate #define endhostent res_endhostent 467c478bd9Sstevel@tonic-gate 477c478bd9Sstevel@tonic-gate #include "dns_common.h" 487c478bd9Sstevel@tonic-gate 497c478bd9Sstevel@tonic-gate extern char *inet_ntoa(struct in_addr in); 507c478bd9Sstevel@tonic-gate 517c478bd9Sstevel@tonic-gate struct hostent *_gethostbyname(int *h_errnop, const char *name); 527c478bd9Sstevel@tonic-gate static struct hostent *_gethostbyaddr(int *h_errnop, const char *addr, 537c478bd9Sstevel@tonic-gate int len, int type); 547c478bd9Sstevel@tonic-gate struct hostent *_nss_dns_gethostbyname2(int *h_errnop, const char *name); 557c478bd9Sstevel@tonic-gate 567c478bd9Sstevel@tonic-gate #pragma weak res_gethostbyname 577c478bd9Sstevel@tonic-gate #pragma weak res_gethostbyname2 587c478bd9Sstevel@tonic-gate #pragma weak res_gethostbyaddr 597c478bd9Sstevel@tonic-gate #pragma weak res_sethostent 607c478bd9Sstevel@tonic-gate #pragma weak res_endhostent 617c478bd9Sstevel@tonic-gate 627c478bd9Sstevel@tonic-gate nss_backend_t *_nss_dns_constr(dns_backend_op_t ops[], int n_ops); 637c478bd9Sstevel@tonic-gate nss_status_t __nss_dns_getbyaddr(dns_backend_ptr_t, void *); 647c478bd9Sstevel@tonic-gate 657c478bd9Sstevel@tonic-gate typedef union { 667c478bd9Sstevel@tonic-gate long al; 677c478bd9Sstevel@tonic-gate char ac; 687c478bd9Sstevel@tonic-gate } align; 697c478bd9Sstevel@tonic-gate 707c478bd9Sstevel@tonic-gate /* 717c478bd9Sstevel@tonic-gate * Internet Name Domain Server (DNS) only implementation. 727c478bd9Sstevel@tonic-gate */ 737c478bd9Sstevel@tonic-gate static struct hostent * 747c478bd9Sstevel@tonic-gate _gethostbyaddr(int *h_errnop, const char *addr, int len, int type) 757c478bd9Sstevel@tonic-gate { 767c478bd9Sstevel@tonic-gate struct hostent *hp; 777c478bd9Sstevel@tonic-gate 787c478bd9Sstevel@tonic-gate hp = gethostbyaddr(addr, len, type); 797c478bd9Sstevel@tonic-gate *h_errnop = *get_h_errno(); 807c478bd9Sstevel@tonic-gate return (hp); 817c478bd9Sstevel@tonic-gate } 827c478bd9Sstevel@tonic-gate 837c478bd9Sstevel@tonic-gate struct hostent * 847c478bd9Sstevel@tonic-gate _nss_dns_gethostbyname2(int *h_errnop, const char *name) 857c478bd9Sstevel@tonic-gate { 867c478bd9Sstevel@tonic-gate struct hostent *hp; 877c478bd9Sstevel@tonic-gate 887c478bd9Sstevel@tonic-gate hp = gethostbyname2(name, AF_INET6); 897c478bd9Sstevel@tonic-gate *h_errnop = *get_h_errno(); 907c478bd9Sstevel@tonic-gate return (hp); 917c478bd9Sstevel@tonic-gate } 927c478bd9Sstevel@tonic-gate 937c478bd9Sstevel@tonic-gate struct hostent * 947c478bd9Sstevel@tonic-gate _gethostbyname(int *h_errnop, const char *name) 957c478bd9Sstevel@tonic-gate { 967c478bd9Sstevel@tonic-gate struct hostent *hp; 977c478bd9Sstevel@tonic-gate 987c478bd9Sstevel@tonic-gate hp = gethostbyname(name); 997c478bd9Sstevel@tonic-gate *h_errnop = *get_h_errno(); 1007c478bd9Sstevel@tonic-gate return (hp); 1017c478bd9Sstevel@tonic-gate } 1027c478bd9Sstevel@tonic-gate 1037c478bd9Sstevel@tonic-gate static void 1047c478bd9Sstevel@tonic-gate _sethostent(errp, stayopen) 1057c478bd9Sstevel@tonic-gate nss_status_t *errp; 1067c478bd9Sstevel@tonic-gate int stayopen; 1077c478bd9Sstevel@tonic-gate { 1087c478bd9Sstevel@tonic-gate int ret; 1097c478bd9Sstevel@tonic-gate 1107c478bd9Sstevel@tonic-gate ret = sethostent(stayopen); 1117c478bd9Sstevel@tonic-gate if (ret == 0) 1127c478bd9Sstevel@tonic-gate *errp = NSS_SUCCESS; 1137c478bd9Sstevel@tonic-gate else 1147c478bd9Sstevel@tonic-gate *errp = NSS_UNAVAIL; 1157c478bd9Sstevel@tonic-gate } 1167c478bd9Sstevel@tonic-gate 1177c478bd9Sstevel@tonic-gate static void 1187c478bd9Sstevel@tonic-gate _endhostent(errp) 1197c478bd9Sstevel@tonic-gate nss_status_t *errp; 1207c478bd9Sstevel@tonic-gate { 1217c478bd9Sstevel@tonic-gate int ret; 1227c478bd9Sstevel@tonic-gate 1237c478bd9Sstevel@tonic-gate ret = endhostent(); 1247c478bd9Sstevel@tonic-gate if (ret == 0) 1257c478bd9Sstevel@tonic-gate *errp = NSS_SUCCESS; 1267c478bd9Sstevel@tonic-gate else 1277c478bd9Sstevel@tonic-gate *errp = NSS_UNAVAIL; 1287c478bd9Sstevel@tonic-gate } 1297c478bd9Sstevel@tonic-gate 1307c478bd9Sstevel@tonic-gate 1317c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 1327c478bd9Sstevel@tonic-gate static nss_status_t 1337c478bd9Sstevel@tonic-gate getbyname(be, a) 1347c478bd9Sstevel@tonic-gate dns_backend_ptr_t be; 1357c478bd9Sstevel@tonic-gate void *a; 1367c478bd9Sstevel@tonic-gate { 1377c478bd9Sstevel@tonic-gate struct hostent *he; 1387c478bd9Sstevel@tonic-gate nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a; 1397c478bd9Sstevel@tonic-gate int ret, mt_disabled; 1407c478bd9Sstevel@tonic-gate int old_retry; 1417c478bd9Sstevel@tonic-gate sigset_t oldmask; 1427c478bd9Sstevel@tonic-gate 1437c478bd9Sstevel@tonic-gate switch_resolver_setup(&mt_disabled, &oldmask, &old_retry); 1447c478bd9Sstevel@tonic-gate 1457c478bd9Sstevel@tonic-gate he = _gethostbyname(&argp->h_errno, argp->key.name); 1467c478bd9Sstevel@tonic-gate if (he != NULL) { 147cb5caa98Sdjl if (argp->buf.result == NULL) { 148cb5caa98Sdjl /* 149cb5caa98Sdjl * if asked to return data in string, 150cb5caa98Sdjl * convert the hostent structure into 151cb5caa98Sdjl * string data 152cb5caa98Sdjl */ 153cb5caa98Sdjl ret = ent2str(he, a, AF_INET); 154cb5caa98Sdjl if (ret == NSS_STR_PARSE_SUCCESS) 155cb5caa98Sdjl argp->returnval = argp->buf.buffer; 1567c478bd9Sstevel@tonic-gate } else { 157cb5caa98Sdjl ret = ent2result(he, a, AF_INET); 158cb5caa98Sdjl if (ret == NSS_STR_PARSE_SUCCESS) 159cb5caa98Sdjl argp->returnval = argp->buf.result; 160cb5caa98Sdjl } 161cb5caa98Sdjl 162cb5caa98Sdjl if (ret != NSS_STR_PARSE_SUCCESS) { 1637c478bd9Sstevel@tonic-gate argp->h_errno = HOST_NOT_FOUND; 1647c478bd9Sstevel@tonic-gate if (ret == NSS_STR_PARSE_ERANGE) { 1657c478bd9Sstevel@tonic-gate argp->erange = 1; 1667c478bd9Sstevel@tonic-gate } 1677c478bd9Sstevel@tonic-gate } 1687c478bd9Sstevel@tonic-gate } 1697c478bd9Sstevel@tonic-gate 1707c478bd9Sstevel@tonic-gate switch_resolver_reset(mt_disabled, oldmask, old_retry); 1717c478bd9Sstevel@tonic-gate 1727c478bd9Sstevel@tonic-gate return (_herrno2nss(argp->h_errno)); 1737c478bd9Sstevel@tonic-gate } 1747c478bd9Sstevel@tonic-gate 1757c478bd9Sstevel@tonic-gate 1767c478bd9Sstevel@tonic-gate 1777c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 1787c478bd9Sstevel@tonic-gate static nss_status_t 1797c478bd9Sstevel@tonic-gate getbyaddr(be, a) 1807c478bd9Sstevel@tonic-gate dns_backend_ptr_t be; 1817c478bd9Sstevel@tonic-gate void *a; 1827c478bd9Sstevel@tonic-gate { 1837c478bd9Sstevel@tonic-gate return (__nss_dns_getbyaddr(be, a)); 1847c478bd9Sstevel@tonic-gate } 1857c478bd9Sstevel@tonic-gate 1867c478bd9Sstevel@tonic-gate 1877c478bd9Sstevel@tonic-gate /* 1887c478bd9Sstevel@tonic-gate * Exposing a DNS backend specific interface so that it doesn't conflict 1897c478bd9Sstevel@tonic-gate * with other getbyaddr() routines from other switch backends. 1907c478bd9Sstevel@tonic-gate */ 191cb5caa98Sdjl /*ARGSUSED*/ 1927c478bd9Sstevel@tonic-gate nss_status_t 1937c478bd9Sstevel@tonic-gate __nss_dns_getbyaddr(be, a) 1947c478bd9Sstevel@tonic-gate dns_backend_ptr_t be; 1957c478bd9Sstevel@tonic-gate void *a; 1967c478bd9Sstevel@tonic-gate { 19787a231a8Sjbeck struct hostent *he; 1987c478bd9Sstevel@tonic-gate nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a; 19987a231a8Sjbeck int ret, mt_disabled; 2007c478bd9Sstevel@tonic-gate struct in_addr unmapv4; 2017c478bd9Sstevel@tonic-gate sigset_t oldmask; 2027c478bd9Sstevel@tonic-gate int af, addrlen; 2037c478bd9Sstevel@tonic-gate void *addrp; 2047c478bd9Sstevel@tonic-gate int old_retry; 2057c478bd9Sstevel@tonic-gate 2067c478bd9Sstevel@tonic-gate switch_resolver_setup(&mt_disabled, &oldmask, &old_retry); 2077c478bd9Sstevel@tonic-gate 208cb5caa98Sdjl /* LINTED: E_BAD_PTR_CAST_ALIGN */ 2097c478bd9Sstevel@tonic-gate if (IN6_IS_ADDR_V4MAPPED((struct in6_addr *)argp->key.hostaddr.addr)) { 2107c478bd9Sstevel@tonic-gate addrp = &unmapv4; 2117c478bd9Sstevel@tonic-gate addrlen = sizeof (unmapv4); 2127c478bd9Sstevel@tonic-gate af = AF_INET; 213cb5caa98Sdjl (void) memcpy(addrp, &argp->key.hostaddr.addr[12], addrlen); 2147c478bd9Sstevel@tonic-gate } else { 2157c478bd9Sstevel@tonic-gate addrp = (void *)argp->key.hostaddr.addr; 2167c478bd9Sstevel@tonic-gate addrlen = argp->key.hostaddr.len; 2177c478bd9Sstevel@tonic-gate af = argp->key.hostaddr.type; 2187c478bd9Sstevel@tonic-gate } 2197c478bd9Sstevel@tonic-gate he = _gethostbyaddr(&argp->h_errno, addrp, addrlen, af); 2207c478bd9Sstevel@tonic-gate 2217c478bd9Sstevel@tonic-gate if (he != NULL) { 22287a231a8Sjbeck /* 22387a231a8Sjbeck * if asked to return data in string, convert 22487a231a8Sjbeck * the hostent structure into string data 22587a231a8Sjbeck */ 22687a231a8Sjbeck if (argp->buf.result == NULL) 22787a231a8Sjbeck ret = ent2str(he, a, argp->key.hostaddr.type); 22887a231a8Sjbeck else 22987a231a8Sjbeck ret = ent2result(he, a, argp->key.hostaddr.type); 230cb5caa98Sdjl 2317c478bd9Sstevel@tonic-gate if (ret == NSS_STR_PARSE_SUCCESS) { 23287a231a8Sjbeck if (argp->buf.result == NULL) 23387a231a8Sjbeck argp->returnval = argp->buf.buffer; 2347c478bd9Sstevel@tonic-gate else 23587a231a8Sjbeck argp->returnval = argp->buf.result; 2367c478bd9Sstevel@tonic-gate } else { 2377c478bd9Sstevel@tonic-gate argp->h_errno = HOST_NOT_FOUND; 23887a231a8Sjbeck if (ret == NSS_STR_PARSE_ERANGE) 2397c478bd9Sstevel@tonic-gate argp->erange = 1; 2407c478bd9Sstevel@tonic-gate } 2417c478bd9Sstevel@tonic-gate } 2427c478bd9Sstevel@tonic-gate 2437c478bd9Sstevel@tonic-gate switch_resolver_reset(mt_disabled, oldmask, old_retry); 2447c478bd9Sstevel@tonic-gate 2457c478bd9Sstevel@tonic-gate return (_herrno2nss(argp->h_errno)); 2467c478bd9Sstevel@tonic-gate } 2477c478bd9Sstevel@tonic-gate 2487c478bd9Sstevel@tonic-gate 2497c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 2507c478bd9Sstevel@tonic-gate static nss_status_t 2517c478bd9Sstevel@tonic-gate _nss_dns_getent(be, args) 2527c478bd9Sstevel@tonic-gate dns_backend_ptr_t be; 2537c478bd9Sstevel@tonic-gate void *args; 2547c478bd9Sstevel@tonic-gate { 2557c478bd9Sstevel@tonic-gate return (NSS_UNAVAIL); 2567c478bd9Sstevel@tonic-gate } 2577c478bd9Sstevel@tonic-gate 2587c478bd9Sstevel@tonic-gate 2597c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 2607c478bd9Sstevel@tonic-gate static nss_status_t 2617c478bd9Sstevel@tonic-gate _nss_dns_setent(be, dummy) 2627c478bd9Sstevel@tonic-gate dns_backend_ptr_t be; 2637c478bd9Sstevel@tonic-gate void *dummy; 2647c478bd9Sstevel@tonic-gate { 2657c478bd9Sstevel@tonic-gate nss_status_t errp; 2667c478bd9Sstevel@tonic-gate 2677c478bd9Sstevel@tonic-gate sigset_t oldmask, newmask; 2687c478bd9Sstevel@tonic-gate int mt_disabled = 1; 2697c478bd9Sstevel@tonic-gate 2707c478bd9Sstevel@tonic-gate /* 2717c478bd9Sstevel@tonic-gate * Try to enable MT; if not, we have to single-thread libresolv 2727c478bd9Sstevel@tonic-gate * access 2737c478bd9Sstevel@tonic-gate */ 2747c478bd9Sstevel@tonic-gate if (enable_mt == 0 || (mt_disabled = (*enable_mt)()) != 0) { 2757c478bd9Sstevel@tonic-gate (void) sigfillset(&newmask); 276*7257d1b4Sraf (void) thr_sigsetmask(SIG_SETMASK, &newmask, &oldmask); 277*7257d1b4Sraf (void) mutex_lock(&one_lane); 2787c478bd9Sstevel@tonic-gate } 2797c478bd9Sstevel@tonic-gate 2807c478bd9Sstevel@tonic-gate _sethostent(&errp, 1); 2817c478bd9Sstevel@tonic-gate 2827c478bd9Sstevel@tonic-gate if (mt_disabled) { 283*7257d1b4Sraf (void) mutex_unlock(&one_lane); 284*7257d1b4Sraf (void) thr_sigsetmask(SIG_SETMASK, &oldmask, NULL); 2857c478bd9Sstevel@tonic-gate } else { 2867c478bd9Sstevel@tonic-gate (void) (*disable_mt)(); 2877c478bd9Sstevel@tonic-gate } 2887c478bd9Sstevel@tonic-gate 2897c478bd9Sstevel@tonic-gate return (errp); 2907c478bd9Sstevel@tonic-gate } 2917c478bd9Sstevel@tonic-gate 2927c478bd9Sstevel@tonic-gate 2937c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 2947c478bd9Sstevel@tonic-gate static nss_status_t 2957c478bd9Sstevel@tonic-gate _nss_dns_endent(be, dummy) 2967c478bd9Sstevel@tonic-gate dns_backend_ptr_t be; 2977c478bd9Sstevel@tonic-gate void *dummy; 2987c478bd9Sstevel@tonic-gate { 2997c478bd9Sstevel@tonic-gate nss_status_t errp; 3007c478bd9Sstevel@tonic-gate 3017c478bd9Sstevel@tonic-gate sigset_t oldmask, newmask; 3027c478bd9Sstevel@tonic-gate int mt_disabled = 1; 3037c478bd9Sstevel@tonic-gate 3047c478bd9Sstevel@tonic-gate /* 3057c478bd9Sstevel@tonic-gate * Try to enable MT; if not, we have to single-thread libresolv 3067c478bd9Sstevel@tonic-gate * access 3077c478bd9Sstevel@tonic-gate */ 3087c478bd9Sstevel@tonic-gate if (enable_mt == 0 || (mt_disabled = (*enable_mt)()) != 0) { 3097c478bd9Sstevel@tonic-gate (void) sigfillset(&newmask); 310*7257d1b4Sraf (void) thr_sigsetmask(SIG_SETMASK, &newmask, &oldmask); 311*7257d1b4Sraf (void) mutex_lock(&one_lane); 3127c478bd9Sstevel@tonic-gate } 3137c478bd9Sstevel@tonic-gate 3147c478bd9Sstevel@tonic-gate _endhostent(&errp); 3157c478bd9Sstevel@tonic-gate 3167c478bd9Sstevel@tonic-gate if (mt_disabled) { 317*7257d1b4Sraf (void) mutex_unlock(&one_lane); 318*7257d1b4Sraf (void) thr_sigsetmask(SIG_SETMASK, &oldmask, NULL); 3197c478bd9Sstevel@tonic-gate } else { 3207c478bd9Sstevel@tonic-gate (void) (*disable_mt)(); 3217c478bd9Sstevel@tonic-gate } 3227c478bd9Sstevel@tonic-gate 3237c478bd9Sstevel@tonic-gate return (errp); 3247c478bd9Sstevel@tonic-gate } 3257c478bd9Sstevel@tonic-gate 3267c478bd9Sstevel@tonic-gate 3277c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 3287c478bd9Sstevel@tonic-gate static nss_status_t 3297c478bd9Sstevel@tonic-gate _nss_dns_destr(be, dummy) 3307c478bd9Sstevel@tonic-gate dns_backend_ptr_t be; 3317c478bd9Sstevel@tonic-gate void *dummy; 3327c478bd9Sstevel@tonic-gate { 3337c478bd9Sstevel@tonic-gate nss_status_t errp; 3347c478bd9Sstevel@tonic-gate 3357c478bd9Sstevel@tonic-gate if (be != 0) { 3367c478bd9Sstevel@tonic-gate /* === Should change to invoke ops[ENDENT] ? */ 3377c478bd9Sstevel@tonic-gate sigset_t oldmask, newmask; 3387c478bd9Sstevel@tonic-gate int mt_disabled = 1; 3397c478bd9Sstevel@tonic-gate 3407c478bd9Sstevel@tonic-gate if (enable_mt == 0 || (mt_disabled = (*enable_mt)()) != 0) { 3417c478bd9Sstevel@tonic-gate (void) sigfillset(&newmask); 342*7257d1b4Sraf (void) thr_sigsetmask(SIG_SETMASK, &newmask, &oldmask); 343*7257d1b4Sraf (void) mutex_lock(&one_lane); 3447c478bd9Sstevel@tonic-gate } 3457c478bd9Sstevel@tonic-gate 3467c478bd9Sstevel@tonic-gate _endhostent(&errp); 3477c478bd9Sstevel@tonic-gate 3487c478bd9Sstevel@tonic-gate if (mt_disabled) { 349*7257d1b4Sraf (void) mutex_unlock(&one_lane); 350*7257d1b4Sraf (void) thr_sigsetmask(SIG_SETMASK, &oldmask, NULL); 3517c478bd9Sstevel@tonic-gate } else { 3527c478bd9Sstevel@tonic-gate (void) (*disable_mt)(); 3537c478bd9Sstevel@tonic-gate } 3547c478bd9Sstevel@tonic-gate 3557c478bd9Sstevel@tonic-gate free(be); 3567c478bd9Sstevel@tonic-gate } 3577c478bd9Sstevel@tonic-gate return (NSS_SUCCESS); /* In case anyone is dumb enough to check */ 3587c478bd9Sstevel@tonic-gate } 3597c478bd9Sstevel@tonic-gate 3607c478bd9Sstevel@tonic-gate 3617c478bd9Sstevel@tonic-gate static dns_backend_op_t host_ops[] = { 3627c478bd9Sstevel@tonic-gate _nss_dns_destr, 3637c478bd9Sstevel@tonic-gate _nss_dns_endent, 3647c478bd9Sstevel@tonic-gate _nss_dns_setent, 3657c478bd9Sstevel@tonic-gate _nss_dns_getent, 3667c478bd9Sstevel@tonic-gate getbyname, 3677c478bd9Sstevel@tonic-gate getbyaddr, 3687c478bd9Sstevel@tonic-gate }; 3697c478bd9Sstevel@tonic-gate 3707c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 3717c478bd9Sstevel@tonic-gate nss_backend_t * 3727c478bd9Sstevel@tonic-gate _nss_dns_hosts_constr(dummy1, dummy2, dummy3) 3737c478bd9Sstevel@tonic-gate const char *dummy1, *dummy2, *dummy3; 3747c478bd9Sstevel@tonic-gate { 3757c478bd9Sstevel@tonic-gate return (_nss_dns_constr(host_ops, 3767c478bd9Sstevel@tonic-gate sizeof (host_ops) / sizeof (host_ops[0]))); 3777c478bd9Sstevel@tonic-gate } 378cb5caa98Sdjl 379cb5caa98Sdjl /* 380cb5caa98Sdjl * optional NSS2 packed backend gethostsbyname with ttl 381cb5caa98Sdjl * entry point. 382cb5caa98Sdjl * 383cb5caa98Sdjl * Returns: 384cb5caa98Sdjl * NSS_SUCCESS - successful 385cb5caa98Sdjl * NSS_NOTFOUND - successful but nothing found 386cb5caa98Sdjl * NSS_ERROR - fallback to NSS backend lookup mode 387cb5caa98Sdjl * If successful, buffer will be filled with valid data 388cb5caa98Sdjl * 389cb5caa98Sdjl */ 390cb5caa98Sdjl 391cb5caa98Sdjl /*ARGSUSED*/ 392cb5caa98Sdjl nss_status_t 393cb5caa98Sdjl _nss_get_dns_hosts_name(dns_backend_ptr_t *be, void **bufp, size_t *sizep) 394cb5caa98Sdjl { 395cb5caa98Sdjl return (_nss_dns_gethost_withttl(*bufp, *sizep, 0)); 396cb5caa98Sdjl } 397