getnameinfo.c revision 5056f1fad1187cd67729bb04ba72397d78256f03
11dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* $NetBSD: getnameinfo.c,v 1.43 2006/02/17 15:58:26 ginsbach Exp $ */ 21dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* $KAME: getnameinfo.c,v 1.45 2000/09/25 22:43:56 itojun Exp $ */ 31dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 41dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* 51dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Copyright (c) 2000 Ben Harris. 61dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 71dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 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 project 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 PROJECT 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 PROJECT 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 341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* 351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Issues to be discussed: 361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * - Thread safe-ness must be checked 371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * - RFC2553 says that we should raise error on short buffer. X/Open says 381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * we need to truncate the result. We obey RFC2553 (and X/Open should be 391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * modified). ipngwg rough consensus seems to follow RFC2553. 401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * - What is "local" in NI_FQDN? 411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * - NI_NAMEREQD and NI_NUMERICHOST conflict with each other. 421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * - (KAME extension) always attach textual scopeid (fe80::1%lo0), if 431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * sin6_scope_id is filled - standardization status? 441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * XXX breaks backward compat for code that expects no scopeid. 451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * beware on merge. 461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <sys/cdefs.h> 491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#if defined(LIBC_SCCS) && !defined(lint) 501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project__RCSID("$NetBSD: getnameinfo.c,v 1.43 2006/02/17 15:58:26 ginsbach Exp $"); 511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif /* LIBC_SCCS and not lint */ 521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <sys/types.h> 541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <sys/socket.h> 551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <net/if.h> 565056f1fad1187cd67729bb04ba72397d78256f03Elliott Hughes#if defined(ANDROID_CHANGES) && defined(AF_LINK) 571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <net/if_dl.h> 585056f1fad1187cd67729bb04ba72397d78256f03Elliott Hughes#endif 591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <net/if_ieee1394.h> 601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <net/if_types.h> 611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <netinet/in.h> 621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <arpa/inet.h> 631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include "arpa_nameser.h" 641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <assert.h> 651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <limits.h> 661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <netdb.h> 671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifdef ANDROID_CHANGES 681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include "resolv_private.h" 69149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk#include <sys/system_properties.h> 70149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk#include <stdlib.h> 71149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk#include <unistd.h> 72149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk#include <sys/un.h> 73149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk#include <errno.h> 741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#else 751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <resolv.h> 761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <stddef.h> 781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <string.h> 791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic const struct afd { 811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int a_af; 821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project socklen_t a_addrlen; 831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project socklen_t a_socklen; 841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int a_off; 851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} afdl [] = { 861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifdef INET6 871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project {PF_INET6, sizeof(struct in6_addr), sizeof(struct sockaddr_in6), 881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project offsetof(struct sockaddr_in6, sin6_addr)}, 891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project {PF_INET, sizeof(struct in_addr), sizeof(struct sockaddr_in), 911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project offsetof(struct sockaddr_in, sin_addr)}, 921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project {0, 0, 0, 0}, 931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project}; 941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstruct sockinet { 961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project u_char si_len; 971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project u_char si_family; 981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project u_short si_port; 991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project}; 1001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic int getnameinfo_inet __P((const struct sockaddr *, socklen_t, char *, 1021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project socklen_t, char *, socklen_t, int)); 1031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifdef INET6 1041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic int ip6_parsenumeric __P((const struct sockaddr *, const char *, char *, 1051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project socklen_t, int)); 1061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic int ip6_sa2str __P((const struct sockaddr_in6 *, char *, size_t, 1071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int)); 1081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 1095056f1fad1187cd67729bb04ba72397d78256f03Elliott Hughes#if defined(ANDROID_CHANGES) && defined(AF_LINK) 1101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic int getnameinfo_link __P((const struct sockaddr *, socklen_t, char *, 1111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project socklen_t, char *, socklen_t, int)); 1125056f1fad1187cd67729bb04ba72397d78256f03Elliott Hughes#endif 1131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic int hexname __P((const u_int8_t *, size_t, char *, socklen_t)); 1141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 11506e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun// This should be synchronized to ResponseCode.h 11606e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurunstatic const int DnsProxyQueryResult = 222; 11706e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun 11806e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun 1191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* 1201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Top-level getnameinfo() code. Look at the address family, and pick an 1211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * appropriate function to call. 1221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 1231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectint getnameinfo(const struct sockaddr* sa, socklen_t salen, char* host, size_t hostlen, char* serv, size_t servlen, int flags) 1241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 1251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project switch (sa->sa_family) { 1261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case AF_INET: 1271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case AF_INET6: 1281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return getnameinfo_inet(sa, salen, host, hostlen, 1291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project serv, servlen, flags); 1305056f1fad1187cd67729bb04ba72397d78256f03Elliott Hughes#if defined(ANDROID_CHANGES) && defined(AF_LINK) 1311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case AF_LINK: 1321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return getnameinfo_link(sa, salen, host, hostlen, 1331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project serv, servlen, flags); 1341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 1351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project default: 1361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_FAMILY; 1371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 1381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 1391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 140149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk#ifdef ANDROID_CHANGES 141149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk/* On success length of the host name is returned. A return 142149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk * value of 0 means there's no host name associated with 143149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk * the address. On failure -1 is returned in which case 144149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk * normal execution flow shall continue. */ 145149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falkstatic int 14606e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurunandroid_gethostbyaddr_proxy(char* nameBuf, size_t nameBufLen, const void *addr, socklen_t addrLen, int addrFamily) { 147149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk 148149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk int sock; 149149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk const int one = 1; 150149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk struct sockaddr_un proxy_addr; 151149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk const char* cache_mode = getenv("ANDROID_DNS_MODE"); 152149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk FILE* proxy = NULL; 153149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk int result = -1; 154149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk 155149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk if (cache_mode != NULL && strcmp(cache_mode, "local") == 0) { 156149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk // Don't use the proxy in local mode. This is used by the 157149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk // proxy itself. 158149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk return -1; 159149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk } 1601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 161149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk // Temporary cautious hack to disable the DNS proxy for processes 162149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk // requesting special treatment. Ideally the DNS proxy should 163149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk // accomodate these apps, though. 164149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk char propname[PROP_NAME_MAX]; 165149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk char propvalue[PROP_VALUE_MAX]; 166149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk snprintf(propname, sizeof(propname), "net.dns1.%d", getpid()); 167149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk if (__system_property_get(propname, propvalue) > 0) { 168149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk return -1; 169149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk } 170149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk // create socket 171149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk sock = socket(AF_UNIX, SOCK_STREAM, 0); 172149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk if (sock < 0) { 173149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk return -1; 174149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk } 175149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk 176149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)); 177149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk memset(&proxy_addr, 0, sizeof(proxy_addr)); 178149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk proxy_addr.sun_family = AF_UNIX; 179149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk strlcpy(proxy_addr.sun_path, "/dev/socket/dnsproxyd", 180149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk sizeof(proxy_addr.sun_path)); 181c13fa640eea3285a586fc4bad0abf2fc1b902185Brian Carlstrom if (TEMP_FAILURE_RETRY(connect(sock, (const struct sockaddr*) (void*) &proxy_addr, 182149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk sizeof(proxy_addr))) != 0) { 183149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk close(sock); 184149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk return -1; 185149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk } 186149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk 187149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk // send request to DnsProxyListener 188149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk proxy = fdopen(sock,"r+"); 189149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk if (proxy == NULL) { 190149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk goto exit; 191149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk } 192149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk 193c13fa640eea3285a586fc4bad0abf2fc1b902185Brian Carlstrom char buf[INET6_ADDRSTRLEN]; // big enough for IPv4 and IPv6 19406e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun const char* addrStr = inet_ntop(addrFamily, addr, buf, sizeof(buf)); 195c13fa640eea3285a586fc4bad0abf2fc1b902185Brian Carlstrom if (addrStr == NULL) { 196c13fa640eea3285a586fc4bad0abf2fc1b902185Brian Carlstrom goto exit; 197c13fa640eea3285a586fc4bad0abf2fc1b902185Brian Carlstrom } 1981fb6662d1aa51eec54cfc133c40cacc0b15aad30Kenny Root if (fprintf(proxy, "gethostbyaddr %s %d %d", addrStr, addrLen, addrFamily) < 0) { 199149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk goto exit; 200149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk } 201149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk 202149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk // literal NULL byte at end, required by FrameworkListener 203149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk if (fputc(0, proxy) == EOF || fflush(proxy) != 0) { 204149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk goto exit; 205149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk } 206149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk 207149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk result = 0; 208c59ba4595be25a1213955233fcf9bcd1afe6438eRobert Greenwalt char msg_buf[4]; 20906e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun // read result code for gethostbyaddr 21006e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun if (fread(msg_buf, 1, sizeof(msg_buf), proxy) != sizeof(msg_buf)) { 21106e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun goto exit; 21206e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun } 21306e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun 21406e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun int result_code = (int)strtol(msg_buf, NULL, 10); 21506e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun // verify the code itself 21606e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun if (result_code != DnsProxyQueryResult) { 21706e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun goto exit; 21806e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun } 21906e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun 220149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk uint32_t name_len; 221149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk if (fread(&name_len, sizeof(name_len), 1, proxy) != 1) { 222149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk goto exit; 223149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk } 224149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk 225149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk name_len = ntohl(name_len); 22606e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun if (name_len <= 0 || name_len >= nameBufLen) { 227149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk goto exit; 228149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk } 229149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk 23006e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun if (fread(nameBuf, name_len, 1, proxy) != 1) { 231149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk goto exit; 232149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk } 233149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk 234149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk result = name_len; 235149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk 236149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk exit: 237149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk if (proxy != NULL) { 238149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk fclose(proxy); 239149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk } 240149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk 241149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk return result; 242149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk} 243149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk#endif 2441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* 2451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * getnameinfo_inet(): 2461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Format an IPv4 or IPv6 sockaddr into a printable string. 2471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 2481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic int 2491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectgetnameinfo_inet(sa, salen, host, hostlen, serv, servlen, flags) 2501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const struct sockaddr *sa; 2511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project socklen_t salen; 2521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *host; 2531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project socklen_t hostlen; 2541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *serv; 2551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project socklen_t servlen; 2561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int flags; 2571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 2581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const struct afd *afd; 2591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct servent *sp; 2601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct hostent *hp; 2611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project u_short port; 2621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int family, i; 2631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const char *addr; 2641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project u_int32_t v4a; 2651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char numserv[512]; 2661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char numaddr[512]; 2671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 2681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* sa is checked below */ 2691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* host may be NULL */ 2701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* serv may be NULL */ 2711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 2721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (sa == NULL) 2731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_FAIL; 2741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 2751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifdef BSD4_4 2761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (sa->sa_len != salen) 2771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_FAIL; 2781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 2791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 2801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project family = sa->sa_family; 2811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project for (i = 0; afdl[i].a_af; i++) 2821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (afdl[i].a_af == family) { 2831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project afd = &afdl[i]; 2841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project goto found; 2851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 2861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_FAMILY; 2871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 2881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project found: 2891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (salen != afd->a_socklen) 2901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_FAIL; 2911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 2921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* network byte order */ 2931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project port = ((const struct sockinet *)(const void *)sa)->si_port; 2941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project addr = (const char *)(const void *)sa + afd->a_off; 2951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 2961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (serv == NULL || servlen == 0) { 2971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* 2981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * do nothing in this case. 2991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * in case you are wondering if "&&" is more correct than 3001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * "||" here: rfc2553bis-03 says that serv == NULL OR 3011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * servlen == 0 means that the caller does not want the result. 3021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 3031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } else { 3041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (flags & NI_NUMERICSERV) 3051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project sp = NULL; 3061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project else { 3071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project sp = getservbyport(port, 3081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (flags & NI_DGRAM) ? "udp" : "tcp"); 3091dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (sp) { 3111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (strlen(sp->s_name) + 1 > (size_t)servlen) 3121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_MEMORY; 3131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project strlcpy(serv, sp->s_name, servlen); 3141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } else { 3151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project snprintf(numserv, sizeof(numserv), "%u", ntohs(port)); 3161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (strlen(numserv) + 1 > (size_t)servlen) 3171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_MEMORY; 3181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project strlcpy(serv, numserv, servlen); 3191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 3221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project switch (sa->sa_family) { 3231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case AF_INET: 3241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project v4a = (u_int32_t) 3251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ntohl(((const struct sockaddr_in *) 3261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (const void *)sa)->sin_addr.s_addr); 3271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (IN_MULTICAST(v4a) || IN_EXPERIMENTAL(v4a)) 3281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project flags |= NI_NUMERICHOST; 3291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project v4a >>= IN_CLASSA_NSHIFT; 3301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (v4a == 0) 3311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project flags |= NI_NUMERICHOST; 3321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 3331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifdef INET6 3341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case AF_INET6: 3351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project { 3361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const struct sockaddr_in6 *sin6; 3371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project sin6 = (const struct sockaddr_in6 *)(const void *)sa; 3381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project switch (sin6->sin6_addr.s6_addr[0]) { 3391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case 0x00: 3401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) 3411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ; 3421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project else if (IN6_IS_ADDR_LOOPBACK(&sin6->sin6_addr)) 3431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ; 3441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project else 3451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project flags |= NI_NUMERICHOST; 3461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 3471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project default: 3481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { 3491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project flags |= NI_NUMERICHOST; 3501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project else if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr)) 3521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project flags |= NI_NUMERICHOST; 3531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 3541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 3571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 3581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (host == NULL || hostlen == 0) { 3601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* 3611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * do nothing in this case. 3621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * in case you are wondering if "&&" is more correct than 3631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * "||" here: rfc2553bis-03 says that host == NULL or 3641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * hostlen == 0 means that the caller does not want the result. 3651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 3661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } else if (flags & NI_NUMERICHOST) { 3671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project size_t numaddrlen; 3681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 3691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* NUMERICHOST and NAMEREQD conflicts with each other */ 3701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (flags & NI_NAMEREQD) 3711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_NONAME; 3721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 3731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project switch(afd->a_af) { 3741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifdef INET6 3751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case AF_INET6: 3761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project { 3771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int error; 3781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 3791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((error = ip6_parsenumeric(sa, addr, host, 3801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hostlen, flags)) != 0) 3811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return(error); 3821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 3831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 3851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project default: 3861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (inet_ntop(afd->a_af, addr, numaddr, sizeof(numaddr)) 3871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project == NULL) 3881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_SYSTEM; 3891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project numaddrlen = strlen(numaddr); 3901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (numaddrlen + 1 > (size_t)hostlen) /* don't forget terminator */ 3911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_MEMORY; 3921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project strlcpy(host, numaddr, hostlen); 3931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 3941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 3951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } else { 396149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk#ifdef ANDROID_CHANGES 397149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk struct hostent android_proxy_hostent; 398149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk char android_proxy_buf[MAXDNAME]; 399149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk 40006e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun int hostnamelen = android_gethostbyaddr_proxy(android_proxy_buf, 40106e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun MAXDNAME, addr, afd->a_addrlen, afd->a_af); 40206e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun if (hostnamelen > 0) { 40306e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun hp = &android_proxy_hostent; 40406e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun hp->h_name = android_proxy_buf; 40506e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun } else if (!hostnamelen) { 40606e1831f194389b6f56ac016ebb52ed5cd430bb2Selim Gurun hp = NULL; 407149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk } else { 408149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk hp = gethostbyaddr(addr, afd->a_addrlen, afd->a_af); 409149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk } 410149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk#else 4111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hp = gethostbyaddr(addr, afd->a_addrlen, afd->a_af); 412149f7dfe0416f19a729d83bf5cfde44b5e28e0ecMattias Falk#endif 4131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (hp) { 4155056f1fad1187cd67729bb04ba72397d78256f03Elliott Hughes#if defined(ANDROID_CHANGES) && defined(AF_LINK) 4161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* 4171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * commented out, since "for local host" is not 4181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * implemented here - see RFC2553 p30 4191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 4201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (flags & NI_NOFQDN) { 4211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *p; 4221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project p = strchr(hp->h_name, '.'); 4231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (p) 4241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *p = '\0'; 4251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 4271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (strlen(hp->h_name) + 1 > (size_t)hostlen) { 4281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_MEMORY; 4291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project strlcpy(host, hp->h_name, hostlen); 4311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } else { 4321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (flags & NI_NAMEREQD) 4331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_NONAME; 4341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project switch(afd->a_af) { 4351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifdef INET6 4361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case AF_INET6: 4371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project { 4381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int error; 4391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((error = ip6_parsenumeric(sa, addr, host, 4411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hostlen, 4421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project flags)) != 0) 4431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return(error); 4441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 4451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 4471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project default: 4481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (inet_ntop(afd->a_af, addr, host, 4491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hostlen) == NULL) 4501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_SYSTEM; 4511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project break; 4521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 4551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return(0); 4561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 4571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifdef INET6 4591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic int 4601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectip6_parsenumeric(sa, addr, host, hostlen, flags) 4611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const struct sockaddr *sa; 4621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const char *addr; 4631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *host; 4641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project socklen_t hostlen; 4651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int flags; 4661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 4671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project size_t numaddrlen; 4681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char numaddr[512]; 4691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(sa != NULL); 4711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(addr != NULL); 4721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(host != NULL); 4731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 47450ace4fec5e8cb5afcbc656a4556fa528adfd760David 'Digit' Turner if (hostlen < 0) 47550ace4fec5e8cb5afcbc656a4556fa528adfd760David 'Digit' Turner return EAI_OVERFLOW; 47650ace4fec5e8cb5afcbc656a4556fa528adfd760David 'Digit' Turner 4771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (inet_ntop(AF_INET6, addr, numaddr, sizeof(numaddr)) == NULL) 4781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_SYSTEM; 4791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project numaddrlen = strlen(numaddr); 48150ace4fec5e8cb5afcbc656a4556fa528adfd760David 'Digit' Turner if (numaddrlen + 1 > (size_t)hostlen) /* don't forget terminator */ 4821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_OVERFLOW; 4831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project strlcpy(host, numaddr, hostlen); 4841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (((const struct sockaddr_in6 *)(const void *)sa)->sin6_scope_id) { 4861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char zonebuf[MAXHOSTNAMELEN]; 4871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int zonelen; 4881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project zonelen = ip6_sa2str( 4901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (const struct sockaddr_in6 *)(const void *)sa, 4911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project zonebuf, sizeof(zonebuf), flags); 4921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (zonelen < 0) 4931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_OVERFLOW; 49450ace4fec5e8cb5afcbc656a4556fa528adfd760David 'Digit' Turner if ((size_t) zonelen + 1 + numaddrlen + 1 > (size_t)hostlen) 4951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_OVERFLOW; 4961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* construct <numeric-addr><delim><zoneid> */ 4971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project memcpy(host + numaddrlen + 1, zonebuf, 4981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (size_t)zonelen); 4991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project host[numaddrlen] = SCOPE_DELIMITER; 5001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project host[numaddrlen + 1 + zonelen] = '\0'; 5011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 5021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return 0; 5041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 5051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* ARGSUSED */ 5071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic int 5081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectip6_sa2str(sa6, buf, bufsiz, flags) 5091dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const struct sockaddr_in6 *sa6; 5101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *buf; 5111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project size_t bufsiz; 5121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int flags; 5131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 5141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project unsigned int ifindex; 5151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const struct in6_addr *a6; 5161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int n; 5171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(sa6 != NULL); 5191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project assert(buf != NULL); 5201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project ifindex = (unsigned int)sa6->sin6_scope_id; 5221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a6 = &sa6->sin6_addr; 5231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifdef NI_NUMERICSCOPE 5251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((flags & NI_NUMERICSCOPE) != 0) { 5261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = snprintf(buf, bufsiz, "%u", sa6->sin6_scope_id); 5271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n < 0 || n >= bufsiz) 5281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return -1; 5291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project else 5301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return n; 5311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 5321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 5331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* if_indextoname() does not take buffer size. not a good api... */ 5351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((IN6_IS_ADDR_LINKLOCAL(a6) || IN6_IS_ADDR_MC_LINKLOCAL(a6)) && 5361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project bufsiz >= IF_NAMESIZE) { 5371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *p = if_indextoname(ifindex, buf); 5381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (p) { 5391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return(strlen(p)); 5401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 5411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 5421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* last resort */ 5441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = snprintf(buf, bufsiz, "%u", sa6->sin6_scope_id); 5451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n < 0 || (size_t) n >= bufsiz) 5461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return -1; 5471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project else 5481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return n; 5491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 5501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif /* INET6 */ 5511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5535056f1fad1187cd67729bb04ba72397d78256f03Elliott Hughes#if defined(ANDROID_CHANGES) && defined(AF_LINK) 5541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* 5551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * getnameinfo_link(): 5561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Format a link-layer address into a printable format, paying attention to 5571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * the interface type. 5581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 5591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* ARGSUSED */ 5601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic int 5611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectgetnameinfo_link(const struct sockaddr *sa, socklen_t salen, 5621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *host, socklen_t hostlen, char *serv, socklen_t servlen, 5631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int flags) 5641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 5651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const struct sockaddr_dl *sdl = 5661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (const struct sockaddr_dl *)(const void *)sa; 5671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const struct ieee1394_hwaddr *iha; 5681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int n; 5691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (serv != NULL && servlen > 0) 5711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *serv = '\0'; 5721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && sdl->sdl_slen == 0) { 5741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = snprintf(host, hostlen, "link#%u", sdl->sdl_index); 5751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n < 0 || (socklen_t) n > hostlen) { 5761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *host = '\0'; 5771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_MEMORY; 5781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 5791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return 0; 5801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 5811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 5821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project switch (sdl->sdl_type) { 5831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifdef IFT_ECONET 5841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case IFT_ECONET: 5851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (sdl->sdl_alen < 2) 5861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_FAMILY; 5871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (CLLADDR(sdl)[1] == 0) 5881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = snprintf(host, hostlen, "%u", CLLADDR(sdl)[0]); 5891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project else 5901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = snprintf(host, hostlen, "%u.%u", 5911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project CLLADDR(sdl)[1], CLLADDR(sdl)[0]); 5921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n < 0 || (socklen_t) n >= hostlen) { 5931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *host = '\0'; 5941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_MEMORY; 5951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } else 5961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return 0; 5971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 5981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case IFT_IEEE1394: 5991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (sdl->sdl_alen < sizeof(iha->iha_uid)) 6001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_FAMILY; 6011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project iha = 6021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (const struct ieee1394_hwaddr *)(const void *)CLLADDR(sdl); 6031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return hexname(iha->iha_uid, sizeof(iha->iha_uid), 6041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project host, hostlen); 6051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* 6061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * The following have zero-length addresses. 6071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * IFT_ATM (net/if_atmsubr.c) 6081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * IFT_FAITH (net/if_faith.c) 6091dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * IFT_GIF (net/if_gif.c) 6101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * IFT_LOOP (net/if_loop.c) 6111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * IFT_PPP (net/if_ppp.c, net/if_spppsubr.c) 6121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * IFT_SLIP (net/if_sl.c, net/if_strip.c) 6131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * IFT_STF (net/if_stf.c) 6141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * IFT_L2VLAN (net/if_vlan.c) 6151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * IFT_PROPVIRTUAL (net/if_bridge.h> 6161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 6171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project /* 6181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * The following use IPv4 addresses as link-layer addresses: 6191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * IFT_OTHER (net/if_gre.c) 6201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 6211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case IFT_ARCNET: /* default below is believed correct for all these. */ 6221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case IFT_ETHER: 6231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case IFT_FDDI: 6241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case IFT_HIPPI: 6251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project case IFT_ISO88025: 6261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project default: 6271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return hexname((const u_int8_t *)CLLADDR(sdl), 6281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (size_t)sdl->sdl_alen, host, hostlen); 6291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 6301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 6315056f1fad1187cd67729bb04ba72397d78256f03Elliott Hughes#endif 6321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 6331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic int 6341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projecthexname(cp, len, host, hostlen) 6351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const u_int8_t *cp; 6361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *host; 6371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project size_t len; 6381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project socklen_t hostlen; 6391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 6401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int n; 6411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project size_t i; 6421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *outp = host; 6431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 6441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *outp = '\0'; 6451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project for (i = 0; i < len; i++) { 6461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project n = snprintf(outp, hostlen, "%s%02x", 6471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project i ? ":" : "", cp[i]); 6481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (n < 0 || (socklen_t) n >= hostlen) { 6491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *host = '\0'; 6501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return EAI_MEMORY; 6511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 6521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project outp += n; 6531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project hostlen -= n; 6541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 6551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return 0; 6561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 657