diff -r ffa851df0825 -r 2fb8b9db1c86 symbian-qemu-0.9.1-12/python-2.6.1/Modules/getaddrinfo.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/symbian-qemu-0.9.1-12/python-2.6.1/Modules/getaddrinfo.c Fri Jul 31 15:01:17 2009 +0100 @@ -0,0 +1,638 @@ +/* + * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND + * GAI_ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE + * FOR GAI_ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON GAI_ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN GAI_ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * "#ifdef FAITH" part is local hack for supporting IPv4-v6 translator. + * + * Issues to be discussed: + * - Thread safe-ness must be checked. + * - Return values. There are nonstandard return values defined and used + * in the source code. This is because RFC2133 is silent about which error + * code must be returned for which situation. + * - PF_UNSPEC case would be handled in getipnodebyname() with the AI_ALL flag. + */ + +#if 0 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "addrinfo.h" +#endif + +#if defined(__KAME__) && defined(ENABLE_IPV6) +# define FAITH +#endif + +#define SUCCESS 0 +#define GAI_ANY 0 +#define YES 1 +#define NO 0 + +#ifdef FAITH +static int translate = NO; +static struct in6_addr faith_prefix = IN6ADDR_GAI_ANY_INIT; +#endif + +static const char in_addrany[] = { 0, 0, 0, 0 }; +static const char in6_addrany[] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; +static const char in_loopback[] = { 127, 0, 0, 1 }; +static const char in6_loopback[] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 +}; + +struct sockinet { + u_char si_len; + u_char si_family; + u_short si_port; +}; + +static struct gai_afd { + int a_af; + int a_addrlen; + int a_socklen; + int a_off; + const char *a_addrany; + const char *a_loopback; +} gai_afdl [] = { +#ifdef ENABLE_IPV6 +#define N_INET6 0 + {PF_INET6, sizeof(struct in6_addr), + sizeof(struct sockaddr_in6), + offsetof(struct sockaddr_in6, sin6_addr), + in6_addrany, in6_loopback}, +#define N_INET 1 +#else +#define N_INET 0 +#endif + {PF_INET, sizeof(struct in_addr), + sizeof(struct sockaddr_in), + offsetof(struct sockaddr_in, sin_addr), + in_addrany, in_loopback}, + {0, 0, 0, 0, NULL, NULL}, +}; + +#ifdef ENABLE_IPV6 +#define PTON_MAX 16 +#else +#define PTON_MAX 4 +#endif + +#ifndef IN_MULTICAST +#define IN_MULTICAST(i) (((i) & 0xf0000000U) == 0xe0000000U) +#endif + +#ifndef IN_EXPERIMENTAL +#define IN_EXPERIMENTAL(i) (((i) & 0xe0000000U) == 0xe0000000U) +#endif + +#ifndef IN_LOOPBACKNET +#define IN_LOOPBACKNET 127 +#endif + +static int get_name Py_PROTO((const char *, struct gai_afd *, + struct addrinfo **, char *, struct addrinfo *, + int)); +static int get_addr Py_PROTO((const char *, int, struct addrinfo **, + struct addrinfo *, int)); +static int str_isnumber Py_PROTO((const char *)); + +static char *ai_errlist[] = { + "success.", + "address family for hostname not supported.", /* EAI_ADDRFAMILY */ + "temporary failure in name resolution.", /* EAI_AGAIN */ + "invalid value for ai_flags.", /* EAI_BADFLAGS */ + "non-recoverable failure in name resolution.", /* EAI_FAIL */ + "ai_family not supported.", /* EAI_FAMILY */ + "memory allocation failure.", /* EAI_MEMORY */ + "no address associated with hostname.", /* EAI_NODATA */ + "hostname nor servname provided, or not known.",/* EAI_NONAME */ + "servname not supported for ai_socktype.", /* EAI_SERVICE */ + "ai_socktype not supported.", /* EAI_SOCKTYPE */ + "system error returned in errno.", /* EAI_SYSTEM */ + "invalid value for hints.", /* EAI_BADHINTS */ + "resolved protocol is unknown.", /* EAI_PROTOCOL */ + "unknown error.", /* EAI_MAX */ +}; + +#define GET_CANONNAME(ai, str) \ +if (pai->ai_flags & AI_CANONNAME) {\ + if (((ai)->ai_canonname = (char *)malloc(strlen(str) + 1)) != NULL) {\ + strcpy((ai)->ai_canonname, (str));\ + } else {\ + error = EAI_MEMORY;\ + goto free;\ + }\ +} + +#ifdef HAVE_SOCKADDR_SA_LEN +#define GET_AI(ai, gai_afd, addr, port) {\ + char *p;\ + if (((ai) = (struct addrinfo *)malloc(sizeof(struct addrinfo) +\ + ((gai_afd)->a_socklen)))\ + == NULL) goto free;\ + memcpy(ai, pai, sizeof(struct addrinfo));\ + (ai)->ai_addr = (struct sockaddr *)((ai) + 1);\ + memset((ai)->ai_addr, 0, (gai_afd)->a_socklen);\ + (ai)->ai_addr->sa_len = (ai)->ai_addrlen = (gai_afd)->a_socklen;\ + (ai)->ai_addr->sa_family = (ai)->ai_family = (gai_afd)->a_af;\ + ((struct sockinet *)(ai)->ai_addr)->si_port = port;\ + p = (char *)((ai)->ai_addr);\ + memcpy(p + (gai_afd)->a_off, (addr), (gai_afd)->a_addrlen);\ +} +#else +#define GET_AI(ai, gai_afd, addr, port) {\ + char *p;\ + if (((ai) = (struct addrinfo *)malloc(sizeof(struct addrinfo) +\ + ((gai_afd)->a_socklen)))\ + == NULL) goto free;\ + memcpy(ai, pai, sizeof(struct addrinfo));\ + (ai)->ai_addr = (struct sockaddr *)((ai) + 1);\ + memset((ai)->ai_addr, 0, (gai_afd)->a_socklen);\ + (ai)->ai_addrlen = (gai_afd)->a_socklen;\ + (ai)->ai_addr->sa_family = (ai)->ai_family = (gai_afd)->a_af;\ + ((struct sockinet *)(ai)->ai_addr)->si_port = port;\ + p = (char *)((ai)->ai_addr);\ + memcpy(p + (gai_afd)->a_off, (addr), (gai_afd)->a_addrlen);\ +} +#endif + +#define ERR(err) { error = (err); goto bad; } + +char * +gai_strerror(int ecode) +{ + if (ecode < 0 || ecode > EAI_MAX) + ecode = EAI_MAX; + return ai_errlist[ecode]; +} + +void +freeaddrinfo(struct addrinfo *ai) +{ + struct addrinfo *next; + + do { + next = ai->ai_next; + if (ai->ai_canonname) + free(ai->ai_canonname); + /* no need to free(ai->ai_addr) */ + free(ai); + } while ((ai = next) != NULL); +} + +static int +str_isnumber(const char *p) +{ + unsigned char *q = (unsigned char *)p; + while (*q) { + if (! isdigit(*q)) + return NO; + q++; + } + return YES; +} + +int +getaddrinfo(const char*hostname, const char*servname, + const struct addrinfo *hints, struct addrinfo **res) +{ + struct addrinfo sentinel; + struct addrinfo *top = NULL; + struct addrinfo *cur; + int i, error = 0; + char pton[PTON_MAX]; + struct addrinfo ai; + struct addrinfo *pai; + u_short port; + +#ifdef FAITH + static int firsttime = 1; + + if (firsttime) { + /* translator hack */ + { + char *q = getenv("GAI"); + if (q && inet_pton(AF_INET6, q, &faith_prefix) == 1) + translate = YES; + } + firsttime = 0; + } +#endif + + /* initialize file static vars */ + sentinel.ai_next = NULL; + cur = &sentinel; + pai = &ai; + pai->ai_flags = 0; + pai->ai_family = PF_UNSPEC; + pai->ai_socktype = GAI_ANY; + pai->ai_protocol = GAI_ANY; + pai->ai_addrlen = 0; + pai->ai_canonname = NULL; + pai->ai_addr = NULL; + pai->ai_next = NULL; + port = GAI_ANY; + + if (hostname == NULL && servname == NULL) + return EAI_NONAME; + if (hints) { + /* error check for hints */ + if (hints->ai_addrlen || hints->ai_canonname || + hints->ai_addr || hints->ai_next) + ERR(EAI_BADHINTS); /* xxx */ + if (hints->ai_flags & ~AI_MASK) + ERR(EAI_BADFLAGS); + switch (hints->ai_family) { + case PF_UNSPEC: + case PF_INET: +#ifdef ENABLE_IPV6 + case PF_INET6: +#endif + break; + default: + ERR(EAI_FAMILY); + } + memcpy(pai, hints, sizeof(*pai)); + switch (pai->ai_socktype) { + case GAI_ANY: + switch (pai->ai_protocol) { + case GAI_ANY: + break; + case IPPROTO_UDP: + pai->ai_socktype = SOCK_DGRAM; + break; + case IPPROTO_TCP: + pai->ai_socktype = SOCK_STREAM; + break; + default: + pai->ai_socktype = SOCK_RAW; + break; + } + break; + case SOCK_RAW: + break; + case SOCK_DGRAM: + if (pai->ai_protocol != IPPROTO_UDP && + pai->ai_protocol != GAI_ANY) + ERR(EAI_BADHINTS); /*xxx*/ + pai->ai_protocol = IPPROTO_UDP; + break; + case SOCK_STREAM: + if (pai->ai_protocol != IPPROTO_TCP && + pai->ai_protocol != GAI_ANY) + ERR(EAI_BADHINTS); /*xxx*/ + pai->ai_protocol = IPPROTO_TCP; + break; + default: + ERR(EAI_SOCKTYPE); + /* unreachable */ + } + } + + /* + * service port + */ + if (servname) { + if (str_isnumber(servname)) { + if (pai->ai_socktype == GAI_ANY) { + /* caller accept *GAI_ANY* socktype */ + pai->ai_socktype = SOCK_DGRAM; + pai->ai_protocol = IPPROTO_UDP; + } + port = htons((u_short)atoi(servname)); + } else { + struct servent *sp; + char *proto; + + proto = NULL; + switch (pai->ai_socktype) { + case GAI_ANY: + proto = NULL; + break; + case SOCK_DGRAM: + proto = "udp"; + break; + case SOCK_STREAM: + proto = "tcp"; + break; + default: + fprintf(stderr, "panic!\n"); + break; + } + if ((sp = getservbyname(servname, proto)) == NULL) + ERR(EAI_SERVICE); + port = sp->s_port; + if (pai->ai_socktype == GAI_ANY) { + if (strcmp(sp->s_proto, "udp") == 0) { + pai->ai_socktype = SOCK_DGRAM; + pai->ai_protocol = IPPROTO_UDP; + } else if (strcmp(sp->s_proto, "tcp") == 0) { + pai->ai_socktype = SOCK_STREAM; + pai->ai_protocol = IPPROTO_TCP; + } else + ERR(EAI_PROTOCOL); /*xxx*/ + } + } + } + + /* + * hostname == NULL. + * passive socket -> anyaddr (0.0.0.0 or ::) + * non-passive socket -> localhost (127.0.0.1 or ::1) + */ + if (hostname == NULL) { + struct gai_afd *gai_afd; + + for (gai_afd = &gai_afdl[0]; gai_afd->a_af; gai_afd++) { + if (!(pai->ai_family == PF_UNSPEC + || pai->ai_family == gai_afd->a_af)) { + continue; + } + + if (pai->ai_flags & AI_PASSIVE) { + GET_AI(cur->ai_next, gai_afd, gai_afd->a_addrany, port); + /* xxx meaningless? + * GET_CANONNAME(cur->ai_next, "anyaddr"); + */ + } else { + GET_AI(cur->ai_next, gai_afd, gai_afd->a_loopback, + port); + /* xxx meaningless? + * GET_CANONNAME(cur->ai_next, "localhost"); + */ + } + cur = cur->ai_next; + } + top = sentinel.ai_next; + if (top) + goto good; + else + ERR(EAI_FAMILY); + } + + /* hostname as numeric name */ + for (i = 0; gai_afdl[i].a_af; i++) { + if (inet_pton(gai_afdl[i].a_af, hostname, pton)) { + u_long v4a; +#ifdef ENABLE_IPV6 + u_char pfx; +#endif + + switch (gai_afdl[i].a_af) { + case AF_INET: + v4a = ((struct in_addr *)pton)->s_addr; + v4a = ntohl(v4a); + if (IN_MULTICAST(v4a) || IN_EXPERIMENTAL(v4a)) + pai->ai_flags &= ~AI_CANONNAME; + v4a >>= IN_CLASSA_NSHIFT; + if (v4a == 0 || v4a == IN_LOOPBACKNET) + pai->ai_flags &= ~AI_CANONNAME; + break; +#ifdef ENABLE_IPV6 + case AF_INET6: + pfx = ((struct in6_addr *)pton)->s6_addr8[0]; + if (pfx == 0 || pfx == 0xfe || pfx == 0xff) + pai->ai_flags &= ~AI_CANONNAME; + break; +#endif + } + + if (pai->ai_family == gai_afdl[i].a_af || + pai->ai_family == PF_UNSPEC) { + if (! (pai->ai_flags & AI_CANONNAME)) { + GET_AI(top, &gai_afdl[i], pton, port); + goto good; + } + /* + * if AI_CANONNAME and if reverse lookup + * fail, return ai anyway to pacify + * calling application. + * + * XXX getaddrinfo() is a name->address + * translation function, and it looks strange + * that we do addr->name translation here. + */ + get_name(pton, &gai_afdl[i], &top, pton, pai, port); + goto good; + } else + ERR(EAI_FAMILY); /*xxx*/ + } + } + + if (pai->ai_flags & AI_NUMERICHOST) + ERR(EAI_NONAME); + + /* hostname as alphabetical name */ + error = get_addr(hostname, pai->ai_family, &top, pai, port); + if (error == 0) { + if (top) { + good: + *res = top; + return SUCCESS; + } else + error = EAI_FAIL; + } + free: + if (top) + freeaddrinfo(top); + bad: + *res = NULL; + return error; +} + +static int +get_name(addr, gai_afd, res, numaddr, pai, port0) + const char *addr; + struct gai_afd *gai_afd; + struct addrinfo **res; + char *numaddr; + struct addrinfo *pai; + int port0; +{ + u_short port = port0 & 0xffff; + struct hostent *hp; + struct addrinfo *cur; + int error = 0; +#ifdef ENABLE_IPV6 + int h_error; +#endif + +#ifdef ENABLE_IPV6 + hp = getipnodebyaddr(addr, gai_afd->a_addrlen, gai_afd->a_af, &h_error); +#else + hp = gethostbyaddr(addr, gai_afd->a_addrlen, AF_INET); +#endif + if (hp && hp->h_name && hp->h_name[0] && hp->h_addr_list[0]) { + GET_AI(cur, gai_afd, hp->h_addr_list[0], port); + GET_CANONNAME(cur, hp->h_name); + } else + GET_AI(cur, gai_afd, numaddr, port); + +#ifdef ENABLE_IPV6 + if (hp) + freehostent(hp); +#endif + *res = cur; + return SUCCESS; + free: + if (cur) + freeaddrinfo(cur); +#ifdef ENABLE_IPV6 + if (hp) + freehostent(hp); +#endif + /* bad: */ + *res = NULL; + return error; +} + +static int +get_addr(hostname, af, res, pai, port0) + const char *hostname; + int af; + struct addrinfo **res; + struct addrinfo *pai; + int port0; +{ + u_short port = port0 & 0xffff; + struct addrinfo sentinel; + struct hostent *hp; + struct addrinfo *top, *cur; + struct gai_afd *gai_afd; + int i, error = 0, h_error; + char *ap; + + top = NULL; + sentinel.ai_next = NULL; + cur = &sentinel; +#ifdef ENABLE_IPV6 + if (af == AF_UNSPEC) { + hp = getipnodebyname(hostname, AF_INET6, + AI_ADDRCONFIG|AI_ALL|AI_V4MAPPED, &h_error); + } else + hp = getipnodebyname(hostname, af, AI_ADDRCONFIG, &h_error); +#else + hp = gethostbyname(hostname); + h_error = h_errno; +#endif + if (hp == NULL) { + switch (h_error) { + case HOST_NOT_FOUND: + case NO_DATA: + error = EAI_NODATA; + break; + case TRY_AGAIN: + error = EAI_AGAIN; + break; + case NO_RECOVERY: + default: + error = EAI_FAIL; + break; + } + goto free; + } + + if ((hp->h_name == NULL) || (hp->h_name[0] == 0) || + (hp->h_addr_list[0] == NULL)) { + error = EAI_FAIL; + goto free; + } + + for (i = 0; (ap = hp->h_addr_list[i]) != NULL; i++) { + switch (af) { +#ifdef ENABLE_IPV6 + case AF_INET6: + gai_afd = &gai_afdl[N_INET6]; + break; +#endif +#ifndef ENABLE_IPV6 + default: /* AF_UNSPEC */ +#endif + case AF_INET: + gai_afd = &gai_afdl[N_INET]; + break; +#ifdef ENABLE_IPV6 + default: /* AF_UNSPEC */ + if (IN6_IS_ADDR_V4MAPPED((struct in6_addr *)ap)) { + ap += sizeof(struct in6_addr) - + sizeof(struct in_addr); + gai_afd = &gai_afdl[N_INET]; + } else + gai_afd = &gai_afdl[N_INET6]; + break; +#endif + } +#ifdef FAITH + if (translate && gai_afd->a_af == AF_INET) { + struct in6_addr *in6; + + GET_AI(cur->ai_next, &gai_afdl[N_INET6], ap, port); + in6 = &((struct sockaddr_in6 *)cur->ai_next->ai_addr)->sin6_addr; + memcpy(&in6->s6_addr32[0], &faith_prefix, + sizeof(struct in6_addr) - sizeof(struct in_addr)); + memcpy(&in6->s6_addr32[3], ap, sizeof(struct in_addr)); + } else +#endif /* FAITH */ + GET_AI(cur->ai_next, gai_afd, ap, port); + if (cur == &sentinel) { + top = cur->ai_next; + GET_CANONNAME(top, hp->h_name); + } + cur = cur->ai_next; + } +#ifdef ENABLE_IPV6 + freehostent(hp); +#endif + *res = top; + return SUCCESS; + free: + if (top) + freeaddrinfo(top); +#ifdef ENABLE_IPV6 + if (hp) + freehostent(hp); +#endif +/* bad: */ + *res = NULL; + return error; +}