11dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* $NetBSD: gethnamaddr.c,v 1.70 2006/03/22 00:03:51 christos Exp $ */ 21dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 31dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* 41dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * ++Copyright++ 1985, 1988, 1993 51dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * - 61dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Copyright (c) 1985, 1988, 1993 71dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * The Regents of the University of California. All rights reserved. 81dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 91dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Redistribution and use in source and binary forms, with or without 101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * modification, are permitted provided that the following conditions 111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * are met: 121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * notice, this list of conditions and the following disclaimer. 141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * documentation and/or other materials provided with the distribution. 171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 3. Neither the name of the University nor the names of its contributors 181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * may be used to endorse or promote products derived from this software 191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * without specific prior written permission. 201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * SUCH DAMAGE. 321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * - 331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Portions Copyright (c) 1993 by Digital Equipment Corporation. 341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Permission to use, copy, modify, and distribute this software for any 361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * purpose with or without fee is hereby granted, provided that the above 371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * copyright notice and this permission notice appear in all copies, and that 381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * the name of Digital Equipment Corporation not be used in advertising or 391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * publicity pertaining to distribution of the document or software without 401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * specific, written prior permission. 411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL 431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES 441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT 451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * SOFTWARE. 501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * - 511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * --Copyright-- 521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <sys/cdefs.h> 551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <sys/types.h> 561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <sys/param.h> 581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <sys/socket.h> 591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <netinet/in.h> 601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <arpa/inet.h> 611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include "arpa_nameser.h" 621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include "resolv_private.h" 631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include "resolv_cache.h" 641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <assert.h> 651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <ctype.h> 661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <errno.h> 671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <netdb.h> 681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <stdarg.h> 691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <stdio.h> 702cc2b2be692f1d559a09d2066e56e450249cc9c0Carl Shapiro#include <strings.h> 711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <syslog.h> 721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifndef LOG_AUTH 741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project# define LOG_AUTH 0 751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#define MULTI_PTRS_ARE_ALIASES 1 /* XXX - experimental */ 781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include "nsswitch.h" 801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <stdlib.h> 811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <string.h> 821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic const char const AskedForGot[] = 841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project "gethostby*.getanswer: asked for \"%s\", got \"%s\""; 851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#define MAXPACKET (64*1024) 871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projecttypedef union { 891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project HEADER hdr; 901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project u_char buf[MAXPACKET]; 911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} querybuf; 921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projecttypedef union { 941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int32_t al; 951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char ac; 961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} align; 971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifdef DEBUG 991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic void dprintf(const char *, res_state, ...) 1001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project __attribute__((__format__(__printf__, 1, 3))); 1011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 1021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic struct hostent *getanswer(const querybuf *, int, const char *, int, 1031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_state); 1041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic void map_v4v6_address(const char *, char *); 1051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic void map_v4v6_hostent(struct hostent *, char **, char *); 1061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic void addrsort(char **, int, res_state); 1071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 108e5c35e075fad5b5c143971c4401a360f6eaf5470Jim Huangstatic void _sethtent(int); 109e5c35e075fad5b5c143971c4401a360f6eaf5470Jim Huangstatic void _endhtent(void); 110e5c35e075fad5b5c143971c4401a360f6eaf5470Jim Huangstatic struct hostent *_gethtent(void); 1111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectvoid ht_sethostent(int); 1121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectvoid ht_endhostent(void); 1131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstruct hostent *ht_gethostbyname(char *); 1141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstruct hostent *ht_gethostbyaddr(const char *, int, int); 1151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectvoid dns_service(void); 1161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#undef dn_skipname 1171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectint dn_skipname(const u_char *, const u_char *); 118e5c35e075fad5b5c143971c4401a360f6eaf5470Jim Huangstatic int _gethtbyaddr(void *, void *, va_list); 119e5c35e075fad5b5c143971c4401a360f6eaf5470Jim Huangstatic int _gethtbyname(void *, void *, va_list); 120e5c35e075fad5b5c143971c4401a360f6eaf5470Jim Huangstatic struct hostent *_gethtbyname2(const char *, int); 121e5c35e075fad5b5c143971c4401a360f6eaf5470Jim Huangstatic int _dns_gethtbyaddr(void *, void *, va_list); 122e5c35e075fad5b5c143971c4401a360f6eaf5470Jim Huangstatic int _dns_gethtbyname(void *, void *, va_list); 1231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic struct hostent *gethostbyname_internal(const char *, int, res_state); 1251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic const ns_src default_dns_files[] = { 1271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project { NSSRC_FILES, NS_SUCCESS }, 1281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project { NSSRC_DNS, NS_SUCCESS }, 1291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project { 0, 0 } 1301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project}; 1311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifdef DEBUG 1341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic void 1351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectdprintf(const char *msg, res_state res, ...) 1361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 1371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(msg != NULL); 1381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (res->options & RES_DEBUG) { 1401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int save = errno; 1411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project va_list ap; 1421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project va_start (ap, res); 1441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project vprintf(msg, ap); 1451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project va_end (ap); 1461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project errno = save; 1481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 1491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 1501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#else 1511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project# define dprintf(msg, res, num) ((void)0) /*nada*/ 1521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 1531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#define BOUNDED_INCR(x) \ 1551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project do { \ 1561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp += (x); \ 1571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (cp > eom) { \ 1581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NO_RECOVERY; \ 1591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; \ 1601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } \ 1611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } while (/*CONSTCOND*/0) 1621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#define BOUNDS_CHECK(ptr, count) \ 1641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project do { \ 1651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((ptr) + (count) > eom) { \ 1661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NO_RECOVERY; \ 1671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; \ 1681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } \ 1691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } while (/*CONSTCOND*/0) 1701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic struct hostent * 1721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectgetanswer(const querybuf *answer, int anslen, const char *qname, int qtype, 1731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_state res) 1741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 1751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const HEADER *hp; 1761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const u_char *cp; 1771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int n; 1781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const u_char *eom, *erdata; 1791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *bp, **ap, **hap, *ep; 1801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int type, class, ancount, qdcount; 1811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int haveanswer, had_error; 1821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int toobig = 0; 1831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char tbuf[MAXDNAME]; 1841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const char *tname; 1851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int (*name_ok)(const char *); 1861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_static rs = __res_get_static(); 1871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(answer != NULL); 1891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(qname != NULL); 1901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project tname = qname; 1921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_name = NULL; 1931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project eom = answer->buf + anslen; 1941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project switch (qtype) { 1951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case T_A: 1961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case T_AAAA: 1971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project name_ok = res_hnok; 1981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 1991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case T_PTR: 2001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project name_ok = res_dnok; 2011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 2021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project default: 2031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; /* XXX should be abort(); */ 2041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 2051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* 2061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * find first satisfactory answer 2071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 2081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp = &answer->hdr; 2091dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ancount = ntohs(hp->ancount); 2101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project qdcount = ntohs(hp->qdcount); 2111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project bp = rs->hostbuf; 2121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ep = rs->hostbuf + sizeof rs->hostbuf; 2131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp = answer->buf; 2141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project BOUNDED_INCR(HFIXEDSZ); 2151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (qdcount != 1) { 2161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NO_RECOVERY; 2171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 2181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 2191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = dn_expand(answer->buf, eom, cp, bp, ep - bp); 2201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((n < 0) || !(*name_ok)(bp)) { 2211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NO_RECOVERY; 2221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 2231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 2241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project BOUNDED_INCR(n + QFIXEDSZ); 2251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (qtype == T_A || qtype == T_AAAA) { 2261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* res_send() has already verified that the query name is the 2271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * same as the one we sent; this just gets the expanded name 2281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * (i.e., with the succeeding search-domain tacked on). 2291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 2301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = strlen(bp) + 1; /* for the \0 */ 2311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n >= MAXHOSTNAMELEN) { 2321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NO_RECOVERY; 2331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 2341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 2351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_name = bp; 2361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project bp += n; 2371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* The qname can be abbreviated, but h_name is now absolute. */ 2381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project qname = rs->host.h_name; 2391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 2401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ap = rs->host_aliases; 2411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *ap = NULL; 2421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_aliases = rs->host_aliases; 2431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hap = rs->h_addr_ptrs; 2441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *hap = NULL; 2451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_addr_list = rs->h_addr_ptrs; 2461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project haveanswer = 0; 2471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project had_error = 0; 2481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project while (ancount-- > 0 && cp < eom && !had_error) { 2491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = dn_expand(answer->buf, eom, cp, bp, ep - bp); 2501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((n < 0) || !(*name_ok)(bp)) { 2511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project had_error++; 2521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; 2531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 2541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp += n; /* name */ 2551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project BOUNDS_CHECK(cp, 3 * INT16SZ + INT32SZ); 2561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project type = _getshort(cp); 2571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp += INT16SZ; /* type */ 2581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project class = _getshort(cp); 2591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp += INT16SZ + INT32SZ; /* class, TTL */ 2601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = _getshort(cp); 2611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp += INT16SZ; /* len */ 2621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project BOUNDS_CHECK(cp, n); 2631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project erdata = cp + n; 2641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (class != C_IN) { 2651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* XXX - debug? syslog? */ 2661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp += n; 2671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; /* XXX - had_error++ ? */ 2681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 2691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((qtype == T_A || qtype == T_AAAA) && type == T_CNAME) { 2701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (ap >= &rs->host_aliases[MAXALIASES-1]) 2711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; 2721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = dn_expand(answer->buf, eom, cp, tbuf, sizeof tbuf); 2731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((n < 0) || !(*name_ok)(tbuf)) { 2741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project had_error++; 2751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; 2761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 2771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp += n; 2781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (cp != erdata) { 2791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NO_RECOVERY; 2801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 2811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 2821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* Store alias. */ 2831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *ap++ = bp; 2841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = strlen(bp) + 1; /* for the \0 */ 2851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n >= MAXHOSTNAMELEN) { 2861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project had_error++; 2871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; 2881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 2891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project bp += n; 2901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* Get canonical name. */ 2911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = strlen(tbuf) + 1; /* for the \0 */ 2921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n > ep - bp || n >= MAXHOSTNAMELEN) { 2931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project had_error++; 2941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; 2951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 2961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project strlcpy(bp, tbuf, (size_t)(ep - bp)); 2971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_name = bp; 2981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project bp += n; 2991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; 3001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (qtype == T_PTR && type == T_CNAME) { 3021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = dn_expand(answer->buf, eom, cp, tbuf, sizeof tbuf); 3031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n < 0 || !res_dnok(tbuf)) { 3041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project had_error++; 3051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; 3061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp += n; 3081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (cp != erdata) { 3091dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NO_RECOVERY; 3101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 3111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* Get canonical name. */ 3131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = strlen(tbuf) + 1; /* for the \0 */ 3141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n > ep - bp || n >= MAXHOSTNAMELEN) { 3151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project had_error++; 3161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; 3171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project strlcpy(bp, tbuf, (size_t)(ep - bp)); 3191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project tname = bp; 3201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project bp += n; 3211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; 3221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (type != qtype) { 3241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (type != T_KEY && type != T_SIG) 3251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project syslog(LOG_NOTICE|LOG_AUTH, 3261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project "gethostby*.getanswer: asked for \"%s %s %s\", got type \"%s\"", 3271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project qname, p_class(C_IN), p_type(qtype), 3281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project p_type(type)); 3291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp += n; 3301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; /* XXX - had_error++ ? */ 3311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project switch (type) { 3331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case T_PTR: 3341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (strcasecmp(tname, bp) != 0) { 3351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project syslog(LOG_NOTICE|LOG_AUTH, 3361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project AskedForGot, qname, bp); 3371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp += n; 3381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; /* XXX - had_error++ ? */ 3391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = dn_expand(answer->buf, eom, cp, bp, ep - bp); 3411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((n < 0) || !res_hnok(bp)) { 3421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project had_error++; 3431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 3441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#if MULTI_PTRS_ARE_ALIASES 3461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp += n; 3471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (cp != erdata) { 3481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NO_RECOVERY; 3491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 3501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!haveanswer) 3521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_name = bp; 3531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project else if (ap < &rs->host_aliases[MAXALIASES-1]) 3541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *ap++ = bp; 3551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project else 3561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = -1; 3571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n != -1) { 3581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = strlen(bp) + 1; /* for the \0 */ 3591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n >= MAXHOSTNAMELEN) { 3601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project had_error++; 3611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 3621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project bp += n; 3641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 3661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#else 3671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_name = bp; 3681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (res->options & RES_USE_INET6) { 3691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = strlen(bp) + 1; /* for the \0 */ 3701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n >= MAXHOSTNAMELEN) { 3711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project had_error++; 3721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 3731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project bp += n; 3751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project map_v4v6_hostent(&rs->host, &bp, ep); 3761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_SUCCESS; 3781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return &rs->host; 3791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 3801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case T_A: 3811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case T_AAAA: 3821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (strcasecmp(rs->host.h_name, bp) != 0) { 3831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project syslog(LOG_NOTICE|LOG_AUTH, 3841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project AskedForGot, rs->host.h_name, bp); 3851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp += n; 3861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; /* XXX - had_error++ ? */ 3871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n != rs->host.h_length) { 3891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp += n; 3901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; 3911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (type == T_AAAA) { 3931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct in6_addr in6; 3941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project memcpy(&in6, cp, IN6ADDRSZ); 3951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (IN6_IS_ADDR_V4MAPPED(&in6)) { 3961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp += n; 3971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; 3981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!haveanswer) { 4011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int nn; 4021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_name = bp; 4041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project nn = strlen(bp) + 1; /* for the \0 */ 4051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project bp += nn; 4061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project bp += sizeof(align) - 4091dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (size_t)((u_long)bp % sizeof(align)); 4101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (bp + n >= &rs->hostbuf[sizeof rs->hostbuf]) { 4121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project dprintf("size (%d) too big\n", res, n); 4131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project had_error++; 4141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; 4151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (hap >= &rs->h_addr_ptrs[MAXADDRS-1]) { 4171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!toobig++) 4181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project dprintf("Too many addresses (%d)\n", 4191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res, MAXADDRS); 4201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp += n; 4211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; 4221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (void)memcpy(*hap++ = bp, cp, (size_t)n); 4241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project bp += n; 4251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp += n; 4261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (cp != erdata) { 4271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NO_RECOVERY; 4281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 4291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 4311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project default: 4321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project abort(); 4331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!had_error) 4351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project haveanswer++; 4361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (haveanswer) { 4381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *ap = NULL; 4391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *hap = NULL; 4401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* 4411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Note: we sort even if host can take only one address 4421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * in its return structures - should give it the "best" 4431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * address in that case, not some random one 4441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 4451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (res->nsort && haveanswer > 1 && qtype == T_A) 4461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project addrsort(rs->h_addr_ptrs, haveanswer, res); 4471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!rs->host.h_name) { 4481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = strlen(qname) + 1; /* for the \0 */ 4491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n > ep - bp || n >= MAXHOSTNAMELEN) 4501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project goto no_recovery; 4511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project strlcpy(bp, qname, (size_t)(ep - bp)); 4521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_name = bp; 4531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project bp += n; 4541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (res->options & RES_USE_INET6) 4561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project map_v4v6_hostent(&rs->host, &bp, ep); 4571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_SUCCESS; 4581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return &rs->host; 4591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project no_recovery: 4611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NO_RECOVERY; 4621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 4631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 4641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectint 4661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectgethostbyname_r(const char *name, struct hostent *hp, char *buf, size_t buflen, 4671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct hostent**result, int *errorp) 4681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 4691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct hostent *res; 4701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res = gethostbyname(name); 4721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *errorp = h_errno; 4731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (res == NULL) { 4741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *result = NULL; 4751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return -1; 4761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project memcpy(hp, res, sizeof *hp); 4781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *result = hp; 4791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return 0; 4801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 4811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstruct hostent * 4831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectgethostbyname(const char *name) 4841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 4851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct hostent *hp; 4861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_state res = __res_get_state(); 4871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (res == NULL) 4891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 4901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(name != NULL); 4921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (res->options & RES_USE_INET6) { 4941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp = gethostbyname_internal(name, AF_INET6, res); 4951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (hp) { 4961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project __res_put_state(res); 4971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return hp; 4981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 5001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp = gethostbyname_internal(name, AF_INET, res); 5011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project __res_put_state(res); 5021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return hp; 5031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 5041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstruct hostent * 5061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectgethostbyname2(const char *name, int af) 5071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 5081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct hostent *hp; 5091dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_state res = __res_get_state(); 5101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (res == NULL) 5121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 5131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp = gethostbyname_internal(name, af, res); 5141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project __res_put_state(res); 5151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return hp; 5161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 5171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic struct hostent * 5191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectgethostbyname_internal(const char *name, int af, res_state res) 5201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 5211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const char *cp; 5221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *bp, *ep; 5231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int size; 5241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct hostent *hp; 5251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct resolv_cache* cache; 5261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_static rs = __res_get_static(); 5271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project static const ns_dtab dtab[] = { 5291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project NS_FILES_CB(_gethtbyname, NULL) 5301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project { NSSRC_DNS, _dns_gethtbyname, NULL }, /* force -DHESIOD */ 5311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project { 0, 0, 0 } 5321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project }; 5331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(name != NULL); 5351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project switch (af) { 5371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case AF_INET: 5381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project size = INADDRSZ; 5391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 5401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case AF_INET6: 5411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project size = IN6ADDRSZ; 5421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 5431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project default: 5441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_INTERNAL; 5451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project errno = EAFNOSUPPORT; 5461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 5471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 5481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_addrtype = af; 5501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_length = size; 5511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* 5531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * if there aren't any dots, it could be a user-level alias. 5541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * this is also done in res_nquery() since we are not the only 5551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * function that looks up host names. 5561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 5571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!strchr(name, '.') && (cp = __hostalias(name))) 5581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project name = cp; 5591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* 5611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * disallow names consisting only of digits/dots, unless 5621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * they end in a dot. 5631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 5641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (isdigit((u_char) name[0])) 5651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project for (cp = name;; ++cp) { 5661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!*cp) { 5671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (*--cp == '.') 5681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 5691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* 5701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * All-numeric, no dot at the end. 5711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Fake up a hostent as if we'd actually 5721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * done a lookup. 5731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 5741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (inet_pton(af, name, 5751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (char *)(void *)rs->host_addr) <= 0) { 5761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = HOST_NOT_FOUND; 5771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 5781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 5791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project strncpy(rs->hostbuf, name, MAXDNAME); 5801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->hostbuf[MAXDNAME] = '\0'; 5811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project bp = rs->hostbuf + MAXDNAME; 5821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ep = rs->hostbuf + sizeof rs->hostbuf; 5831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_name = rs->hostbuf; 5841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_aliases = rs->host_aliases; 5851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host_aliases[0] = NULL; 5861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->h_addr_ptrs[0] = (char *)(void *)rs->host_addr; 5871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->h_addr_ptrs[1] = NULL; 5881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_addr_list = rs->h_addr_ptrs; 5891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (res->options & RES_USE_INET6) 5901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project map_v4v6_hostent(&rs->host, &bp, ep); 5911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_SUCCESS; 5921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return &rs->host; 5931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 5941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!isdigit((u_char) *cp) && *cp != '.') 5951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 5961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 5971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((isxdigit((u_char) name[0]) && strchr(name, ':') != NULL) || 5981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project name[0] == ':') 5991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project for (cp = name;; ++cp) { 6001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!*cp) { 6011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (*--cp == '.') 6021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 6031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* 6041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * All-IPv6-legal, no dot at the end. 6051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Fake up a hostent as if we'd actually 6061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * done a lookup. 6071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 6081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (inet_pton(af, name, 6091dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (char *)(void *)rs->host_addr) <= 0) { 6101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = HOST_NOT_FOUND; 6111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 6121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 6131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project strncpy(rs->hostbuf, name, MAXDNAME); 6141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->hostbuf[MAXDNAME] = '\0'; 6151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project bp = rs->hostbuf + MAXDNAME; 6161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ep = rs->hostbuf + sizeof rs->hostbuf; 6171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_name = rs->hostbuf; 6181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_aliases = rs->host_aliases; 6191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host_aliases[0] = NULL; 6201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->h_addr_ptrs[0] = (char *)(void *)rs->host_addr; 6211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->h_addr_ptrs[1] = NULL; 6221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_addr_list = rs->h_addr_ptrs; 6231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_SUCCESS; 6241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return &rs->host; 6251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 6261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!isxdigit((u_char) *cp) && *cp != ':' && *cp != '.') 6271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 6281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 6291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 6301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp = NULL; 6311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_INTERNAL; 6321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (nsdispatch(&hp, dtab, NSDB_HOSTS, "gethostbyname", 6331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project default_dns_files, name, strlen(name), af) != NS_SUCCESS) { 6341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 6351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 6361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_SUCCESS; 6371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return hp; 6381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 6391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 6401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstruct hostent * 641f8d02d24edd23dfb5028881105828cbf15e59310JP Abgrallgethostbyaddr(const void *addr, 6421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project socklen_t len, int af) 6431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 6441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const u_char *uaddr = (const u_char *)addr; 6451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project socklen_t size; 6461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct hostent *hp; 6471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project static const ns_dtab dtab[] = { 6481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project NS_FILES_CB(_gethtbyaddr, NULL) 6491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project { NSSRC_DNS, _dns_gethtbyaddr, NULL }, /* force -DHESIOD */ 6501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project { 0, 0, 0 } 6511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project }; 6521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 6531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(addr != NULL); 6541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 6551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (af == AF_INET6 && len == IN6ADDRSZ && 6561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (IN6_IS_ADDR_LINKLOCAL((const struct in6_addr *)(const void *)uaddr) || 6571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project IN6_IS_ADDR_SITELOCAL((const struct in6_addr *)(const void *)uaddr))) { 6581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = HOST_NOT_FOUND; 6591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 6601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 6611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (af == AF_INET6 && len == IN6ADDRSZ && 6621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (IN6_IS_ADDR_V4MAPPED((const struct in6_addr *)(const void *)uaddr) || 6631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project IN6_IS_ADDR_V4COMPAT((const struct in6_addr *)(const void *)uaddr))) { 6641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* Unmap. */ 6651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project addr += IN6ADDRSZ - INADDRSZ; 6661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project uaddr += IN6ADDRSZ - INADDRSZ; 6671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project af = AF_INET; 6681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project len = INADDRSZ; 6691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 6701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project switch (af) { 6711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case AF_INET: 6721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project size = INADDRSZ; 6731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 6741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case AF_INET6: 6751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project size = IN6ADDRSZ; 6761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 6771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project default: 6781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project errno = EAFNOSUPPORT; 6791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_INTERNAL; 6801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 6811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 6821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (size != len) { 6831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project errno = EINVAL; 6841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_INTERNAL; 6851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 6861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 6871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp = NULL; 6881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_INTERNAL; 6891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (nsdispatch(&hp, dtab, NSDB_HOSTS, "gethostbyaddr", 6901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project default_dns_files, uaddr, len, af) != NS_SUCCESS) 6911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 6921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_SUCCESS; 6931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return hp; 6941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 6951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 696e5c35e075fad5b5c143971c4401a360f6eaf5470Jim Huangstatic void 6971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project_sethtent(int f) 6981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 6991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_static rs = __res_get_static(); 7001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (rs == NULL) return; 7011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!rs->hostf) 7021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->hostf = fopen(_PATH_HOSTS, "r" ); 7031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project else 7041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rewind(rs->hostf); 7051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->stayopen = f; 7061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 7071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 708e5c35e075fad5b5c143971c4401a360f6eaf5470Jim Huangstatic void 7091dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project_endhtent(void) 7101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 7111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_static rs = __res_get_static(); 7121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (rs == NULL) return; 7131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 7141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (rs->hostf && !rs->stayopen) { 7151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (void) fclose(rs->hostf); 7161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->hostf = NULL; 7171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 7181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 7191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 720e5c35e075fad5b5c143971c4401a360f6eaf5470Jim Huangstatic struct hostent * 7211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project_gethtent(void) 7221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 7231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *p; 7241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *cp, **q; 7251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int af, len; 7261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_static rs = __res_get_static(); 7271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 7281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!rs->hostf && !(rs->hostf = fopen(_PATH_HOSTS, "r" ))) { 7291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_INTERNAL; 7301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 7311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 7321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project again: 7331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!(p = fgets(rs->hostbuf, sizeof rs->hostbuf, rs->hostf))) { 7341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = HOST_NOT_FOUND; 7351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 7361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 7371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (*p == '#') 7381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project goto again; 7391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!(cp = strpbrk(p, "#\n"))) 7401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project goto again; 7411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *cp = '\0'; 7421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!(cp = strpbrk(p, " \t"))) 7431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project goto again; 7441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *cp++ = '\0'; 7451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (inet_pton(AF_INET6, p, (char *)(void *)rs->host_addr) > 0) { 7461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project af = AF_INET6; 7471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project len = IN6ADDRSZ; 7481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } else if (inet_pton(AF_INET, p, (char *)(void *)rs->host_addr) > 0) { 7491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_state res = __res_get_state(); 7501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (res == NULL) 7511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 7521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (res->options & RES_USE_INET6) { 7531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project map_v4v6_address((char *)(void *)rs->host_addr, 7541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (char *)(void *)rs->host_addr); 7551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project af = AF_INET6; 7561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project len = IN6ADDRSZ; 7571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } else { 7581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project af = AF_INET; 7591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project len = INADDRSZ; 7601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 7611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project __res_put_state(res); 7621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } else { 7631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project goto again; 7641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 7651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* if this is not something we're looking for, skip it. */ 7661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (rs->host.h_addrtype != 0 && rs->host.h_addrtype != af) 7671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project goto again; 7681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (rs->host.h_length != 0 && rs->host.h_length != len) 7691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project goto again; 7701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->h_addr_ptrs[0] = (char *)(void *)rs->host_addr; 7711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->h_addr_ptrs[1] = NULL; 7721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_addr_list = rs->h_addr_ptrs; 7731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_length = len; 7741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_addrtype = af; 7751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project while (*cp == ' ' || *cp == '\t') 7761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp++; 7771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_name = cp; 7781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project q = rs->host.h_aliases = rs->host_aliases; 7791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((cp = strpbrk(cp, " \t")) != NULL) 7801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *cp++ = '\0'; 7811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project while (cp && *cp) { 7821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (*cp == ' ' || *cp == '\t') { 7831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp++; 7841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; 7851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 7861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (q < &rs->host_aliases[MAXALIASES - 1]) 7871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *q++ = cp; 7881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((cp = strpbrk(cp, " \t")) != NULL) 7891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *cp++ = '\0'; 7901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 7911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *q = NULL; 7921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_SUCCESS; 7931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return &rs->host; 7941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 7951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 7961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/*ARGSUSED*/ 7971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectint 7981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project_gethtbyname(void *rv, void *cb_data, va_list ap) 7991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 8001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct hostent *hp; 8011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const char *name; 8021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int af; 8031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 8041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(rv != NULL); 8051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 8061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project name = va_arg(ap, char *); 8071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* NOSTRICT skip len */(void)va_arg(ap, int); 8081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project af = va_arg(ap, int); 8091dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 8101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp = NULL; 8111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#if 0 8121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project { 8131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_state res = __res_get_state(); 8141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (res == NULL) 8151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_NOTFOUND; 8161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (res->options & RES_USE_INET6) 8171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp = _gethtbyname2(name, AF_INET6); 8181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (hp==NULL) 8191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp = _gethtbyname2(name, AF_INET); 8201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project __res_put_state(res); 8211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 8221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#else 8231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp = _gethtbyname2(name, af); 8241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 8251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *((struct hostent **)rv) = hp; 8261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (hp == NULL) { 8271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = HOST_NOT_FOUND; 8281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_NOTFOUND; 8291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 8301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_SUCCESS; 8311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 8321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 833e5c35e075fad5b5c143971c4401a360f6eaf5470Jim Huangstatic struct hostent * 8341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project_gethtbyname2(const char *name, int af) 8351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 8361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct hostent *p; 8371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *tmpbuf, *ptr, **cp; 8381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int num; 8391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project size_t len; 8401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_static rs = __res_get_static(); 8411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 8421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(name != NULL); 8431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 8441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project _sethtent(rs->stayopen); 8451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ptr = tmpbuf = NULL; 8461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project num = 0; 8471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project while ((p = _gethtent()) != NULL && num < MAXADDRS) { 8481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (p->h_addrtype != af) 8491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project continue; 8501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (strcasecmp(p->h_name, name) != 0) { 8511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project for (cp = p->h_aliases; *cp != NULL; cp++) 8521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (strcasecmp(*cp, name) == 0) 8531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 8541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (*cp == NULL) continue; 8551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 8561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 8571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (num == 0) { 8581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project size_t bufsize; 8591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *src; 8601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 8611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project bufsize = strlen(p->h_name) + 2 + 8621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project MAXADDRS * p->h_length + 8631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ALIGNBYTES; 8641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project for (cp = p->h_aliases; *cp != NULL; cp++) 8651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project bufsize += strlen(*cp) + 1; 8661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 8671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((tmpbuf = malloc(bufsize)) == NULL) { 8681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_INTERNAL; 8691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 8701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 8711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 8721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ptr = tmpbuf; 8731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project src = p->h_name; 8741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project while ((*ptr++ = *src++) != '\0'); 8751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project for (cp = p->h_aliases; *cp != NULL; cp++) { 8761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project src = *cp; 8771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project while ((*ptr++ = *src++) != '\0'); 8781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 8791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *ptr++ = '\0'; 8801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 8811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ptr = (char *)(void *)ALIGN(ptr); 8821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 8831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 8841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (void)memcpy(ptr, p->h_addr_list[0], (size_t)p->h_length); 8851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ptr += p->h_length; 8861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project num++; 8871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 8881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project _endhtent(); 8891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (num == 0) return NULL; 8901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 8911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project len = ptr - tmpbuf; 8921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (len > (sizeof(rs->hostbuf) - ALIGNBYTES)) { 8931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project free(tmpbuf); 8941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project errno = ENOSPC; 8951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_INTERNAL; 8961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NULL; 8971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 8981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ptr = memcpy((void *)ALIGN(rs->hostbuf), tmpbuf, len); 8991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project free(tmpbuf); 9001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 9011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_name = ptr; 9021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project while (*ptr++); 9031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 9041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp = rs->host_aliases; 9051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project while (*ptr) { 9061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *cp++ = ptr; 9071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project while (*ptr++); 9081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 9091dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ptr++; 9101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *cp = NULL; 9111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 9121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ptr = (char *)(void *)ALIGN(ptr); 9131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project cp = rs->h_addr_ptrs; 9141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project while (num--) { 9151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *cp++ = ptr; 9161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ptr += rs->host.h_length; 9171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 9181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *cp = NULL; 9191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 9201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return &rs->host; 9211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 9221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 9231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/*ARGSUSED*/ 924e5c35e075fad5b5c143971c4401a360f6eaf5470Jim Huangstatic int 9251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project_gethtbyaddr(void *rv, void *cb_data, va_list ap) 9261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 9271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct hostent *p; 9281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const unsigned char *addr; 9291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int len, af; 9301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_static rs = __res_get_static(); 9311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 9321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(rv != NULL); 9331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 9341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project addr = va_arg(ap, unsigned char *); 9351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project len = va_arg(ap, int); 9361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project af = va_arg(ap, int); 9371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 9381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_length = len; 9391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_addrtype = af; 9401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 9411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project _sethtent(rs->stayopen); 9421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project while ((p = _gethtent()) != NULL) 9431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (p->h_addrtype == af && !memcmp(p->h_addr, addr, 9441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (size_t)len)) 9451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 9461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project _endhtent(); 9471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *((struct hostent **)rv) = p; 9481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (p==NULL) { 9491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = HOST_NOT_FOUND; 9501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_NOTFOUND; 9511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 9521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_SUCCESS; 9531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 9541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 9551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic void 9561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectmap_v4v6_address(const char *src, char *dst) 9571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 9581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project u_char *p = (u_char *)dst; 9591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char tmp[INADDRSZ]; 9601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int i; 9611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 9621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(src != NULL); 9631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(dst != NULL); 9641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 9651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* Stash a temporary copy so our caller can update in place. */ 9661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (void)memcpy(tmp, src, INADDRSZ); 9671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* Mark this ipv6 addr as a mapped ipv4. */ 9681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project for (i = 0; i < 10; i++) 9691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *p++ = 0x00; 9701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *p++ = 0xff; 9711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *p++ = 0xff; 9721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* Retrieve the saved copy and we're done. */ 9731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (void)memcpy((void *)p, tmp, INADDRSZ); 9741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 9751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 9761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic void 9771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectmap_v4v6_hostent(struct hostent *hp, char **bpp, char *ep) 9781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 9791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char **ap; 9801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 9811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(hp != NULL); 9821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(bpp != NULL); 9831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(ep != NULL); 9841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 9851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (hp->h_addrtype != AF_INET || hp->h_length != INADDRSZ) 9861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return; 9871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp->h_addrtype = AF_INET6; 9881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp->h_length = IN6ADDRSZ; 9891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project for (ap = hp->h_addr_list; *ap; ap++) { 9901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int i = sizeof(align) - (size_t)((u_long)*bpp % sizeof(align)); 9911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 9921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (ep - *bpp < (i + IN6ADDRSZ)) { 9931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* Out of memory. Truncate address list here. XXX */ 9941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *ap = NULL; 9951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return; 9961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 9971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *bpp += i; 9981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project map_v4v6_address(*ap, *bpp); 9991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *ap = *bpp; 10001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *bpp += IN6ADDRSZ; 10011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 10021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 10031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 10041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic void 10051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectaddrsort(char **ap, int num, res_state res) 10061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 10071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int i, j; 10081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char **p; 10091dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project short aval[MAXADDRS]; 10101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int needsort = 0; 10111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 10121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(ap != NULL); 10131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 10141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project p = ap; 10151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project for (i = 0; i < num; i++, p++) { 10161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project for (j = 0 ; (unsigned)j < res->nsort; j++) 10171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (res->sort_list[j].addr.s_addr == 10181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (((struct in_addr *)(void *)(*p))->s_addr & 10191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res->sort_list[j].mask)) 10201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 10211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project aval[i] = j; 10221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (needsort == 0 && i > 0 && j < aval[i-1]) 10231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project needsort = i; 10241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 10251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!needsort) 10261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return; 10271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 10281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project while (needsort < num) { 10291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project for (j = needsort - 1; j >= 0; j--) { 10301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (aval[j] > aval[j+1]) { 10311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *hp; 10321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 10331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project i = aval[j]; 10341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project aval[j] = aval[j+1]; 10351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project aval[j+1] = i; 10361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 10371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp = ap[j]; 10381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ap[j] = ap[j+1]; 10391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ap[j+1] = hp; 10401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } else 10411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 10421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 10431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project needsort++; 10441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 10451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 10461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 10471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstruct hostent * 10481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectgethostent(void) 10491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 10501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_static rs = __res_get_static(); 10511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_addrtype = 0; 10521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->host.h_length = 0; 10531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return _gethtent(); 10541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 10551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 10561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/*ARGSUSED*/ 1057e5c35e075fad5b5c143971c4401a360f6eaf5470Jim Huangstatic int 10581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project_dns_gethtbyname(void *rv, void *cb_data, va_list ap) 10591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 10601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project querybuf *buf; 10611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int n, type; 10621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct hostent *hp; 10631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const char *name; 10641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int af; 10651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_state res; 10661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 10671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(rv != NULL); 10681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 10691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project name = va_arg(ap, char *); 10701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* NOSTRICT skip len */(void)va_arg(ap, int); 10711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project af = va_arg(ap, int); 10721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 10731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project switch (af) { 10741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case AF_INET: 10751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project type = T_A; 10761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 10771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case AF_INET6: 10781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project type = T_AAAA; 10791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 10801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project default: 10811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_UNAVAIL; 10821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 10831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project buf = malloc(sizeof(*buf)); 10841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (buf == NULL) { 10851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_INTERNAL; 10861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_NOTFOUND; 10871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 10881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res = __res_get_state(); 10891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (res == NULL) { 10901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project free(buf); 10911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_NOTFOUND; 10921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 10931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = res_nsearch(res, name, C_IN, type, buf->buf, sizeof(buf->buf)); 10941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n < 0) { 10951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project free(buf); 10961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project dprintf("res_nsearch failed (%d)\n", res, n); 10971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project __res_put_state(res); 10981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_NOTFOUND; 10991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 11001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp = getanswer(buf, n, name, type, res); 11011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project free(buf); 11021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project __res_put_state(res); 11031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (hp == NULL) 11041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project switch (h_errno) { 11051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case HOST_NOT_FOUND: 11061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_NOTFOUND; 11071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case TRY_AGAIN: 11081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_TRYAGAIN; 11091dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project default: 11101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_UNAVAIL; 11111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 11121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *((struct hostent **)rv) = hp; 11131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_SUCCESS; 11141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 11151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 11161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/*ARGSUSED*/ 1117e5c35e075fad5b5c143971c4401a360f6eaf5470Jim Huangstatic int 11181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project_dns_gethtbyaddr(void *rv, void *cb_data, va_list ap) 11191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 11201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char qbuf[MAXDNAME + 1], *qp, *ep; 11211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int n; 11221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project querybuf *buf; 11231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct hostent *hp; 11241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const unsigned char *uaddr; 11251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int len, af, advance; 11261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_state res; 11271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res_static rs = __res_get_static(); 11281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 11291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(rv != NULL); 11301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 11311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project uaddr = va_arg(ap, unsigned char *); 11321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project len = va_arg(ap, int); 11331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project af = va_arg(ap, int); 11341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 11351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project switch (af) { 11361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case AF_INET: 11371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (void)snprintf(qbuf, sizeof(qbuf), "%u.%u.%u.%u.in-addr.arpa", 11381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (uaddr[3] & 0xff), (uaddr[2] & 0xff), 11391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (uaddr[1] & 0xff), (uaddr[0] & 0xff)); 11401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 11411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 11421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case AF_INET6: 11431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project qp = qbuf; 11441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ep = qbuf + sizeof(qbuf) - 1; 11451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project for (n = IN6ADDRSZ - 1; n >= 0; n--) { 11461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project advance = snprintf(qp, (size_t)(ep - qp), "%x.%x.", 11471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project uaddr[n] & 0xf, 11481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ((unsigned int)uaddr[n] >> 4) & 0xf); 11491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (advance > 0 && qp + advance < ep) 11501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project qp += advance; 11511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project else { 11521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_INTERNAL; 11531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_NOTFOUND; 11541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 11551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 11561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (strlcat(qbuf, "ip6.arpa", sizeof(qbuf)) >= sizeof(qbuf)) { 11571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_INTERNAL; 11581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_NOTFOUND; 11591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 11601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 11611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project default: 11621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project abort(); 11631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 11641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 11651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project buf = malloc(sizeof(*buf)); 11661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (buf == NULL) { 11671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_INTERNAL; 11681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_NOTFOUND; 11691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 11701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project res = __res_get_state(); 11711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (res == NULL) { 11721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project free(buf); 11731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_NOTFOUND; 11741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 11751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = res_nquery(res, qbuf, C_IN, T_PTR, buf->buf, sizeof(buf->buf)); 11761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n < 0) { 11771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project free(buf); 11781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project dprintf("res_nquery failed (%d)\n", res, n); 11791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project __res_put_state(res); 11801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_NOTFOUND; 11811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 11821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp = getanswer(buf, n, qbuf, T_PTR, res); 11831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project free(buf); 11841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (hp == NULL) { 11851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project __res_put_state(res); 11861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project switch (h_errno) { 11871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case HOST_NOT_FOUND: 11881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_NOTFOUND; 11891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case TRY_AGAIN: 11901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_TRYAGAIN; 11911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project default: 11921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_UNAVAIL; 11931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 11941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 11951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp->h_addrtype = af; 11961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp->h_length = len; 11971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (void)memcpy(rs->host_addr, uaddr, (size_t)len); 11981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->h_addr_ptrs[0] = (char *)(void *)rs->host_addr; 11991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project rs->h_addr_ptrs[1] = NULL; 12001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (af == AF_INET && (res->options & RES_USE_INET6)) { 12011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project map_v4v6_address((char *)(void *)rs->host_addr, 12021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (char *)(void *)rs->host_addr); 12031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp->h_addrtype = AF_INET6; 12041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp->h_length = IN6ADDRSZ; 12051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 12061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 12071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project __res_put_state(res); 12081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *((struct hostent **)rv) = hp; 12091dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project h_errno = NETDB_SUCCESS; 12101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return NS_SUCCESS; 12111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 1212