diff options
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/bio/b_addr.c')
-rw-r--r-- | Cryptlib/OpenSSL/crypto/bio/b_addr.c | 897 |
1 files changed, 0 insertions, 897 deletions
diff --git a/Cryptlib/OpenSSL/crypto/bio/b_addr.c b/Cryptlib/OpenSSL/crypto/bio/b_addr.c deleted file mode 100644 index 0f1900db..00000000 --- a/Cryptlib/OpenSSL/crypto/bio/b_addr.c +++ /dev/null @@ -1,897 +0,0 @@ -/* - * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved. - * - * Licensed under the OpenSSL license (the "License"). You may not use - * this file except in compliance with the License. You can obtain a copy - * in the file LICENSE in the source distribution or at - * https://www.openssl.org/source/license.html - */ - -#include <string.h> - -#include "bio_lcl.h" -#include <openssl/crypto.h> - -#ifndef OPENSSL_NO_SOCK -#include <openssl/err.h> -#include <openssl/buffer.h> -#include <internal/thread_once.h> -#include <ctype.h> - -#ifdef _HPUX_SOURCE -static const char *ossl_hstrerror(int herr) -{ - switch (herr) { - case -1: - return strerror(errno); - case 0: - return "No error"; - case HOST_NOT_FOUND: - return "Host not found"; - case NO_DATA: /* NO_ADDRESS is a synonym */ - return "No data"; - case NO_RECOVERY: - return "Non recoverable error"; - case TRY_AGAIN: - return "Try again"; - default: - break; - } - return "unknown error"; -} -# define hstrerror(e) ossl_hstrerror(e) -#endif - -CRYPTO_RWLOCK *bio_lookup_lock; -static CRYPTO_ONCE bio_lookup_init = CRYPTO_ONCE_STATIC_INIT; - -/* - * Throughout this file and bio_lcl.h, the existence of the macro - * AI_PASSIVE is used to detect the availability of struct addrinfo, - * getnameinfo() and getaddrinfo(). If that macro doesn't exist, - * we use our own implementation instead, using gethostbyname, - * getservbyname and a few other. - */ - -/********************************************************************** - * - * Address structure - * - */ - -BIO_ADDR *BIO_ADDR_new(void) -{ - BIO_ADDR *ret = OPENSSL_zalloc(sizeof(*ret)); - - if (ret == NULL) { - BIOerr(BIO_F_BIO_ADDR_NEW, ERR_R_MALLOC_FAILURE); - return NULL; - } - - ret->sa.sa_family = AF_UNSPEC; - return ret; -} - -void BIO_ADDR_free(BIO_ADDR *ap) -{ - OPENSSL_free(ap); -} - -void BIO_ADDR_clear(BIO_ADDR *ap) -{ - memset(ap, 0, sizeof(*ap)); - ap->sa.sa_family = AF_UNSPEC; -} - -/* - * BIO_ADDR_make - non-public routine to fill a BIO_ADDR with the contents - * of a struct sockaddr. - */ -int BIO_ADDR_make(BIO_ADDR *ap, const struct sockaddr *sa) -{ - if (sa->sa_family == AF_INET) { - ap->s_in = *(const struct sockaddr_in *)sa; - return 1; - } -#ifdef AF_INET6 - if (sa->sa_family == AF_INET6) { - ap->s_in6 = *(const struct sockaddr_in6 *)sa; - return 1; - } -#endif -#ifdef AF_UNIX - if (ap->sa.sa_family == AF_UNIX) { - ap->s_un = *(const struct sockaddr_un *)sa; - return 1; - } -#endif - - return 0; -} - -int BIO_ADDR_rawmake(BIO_ADDR *ap, int family, - const void *where, size_t wherelen, - unsigned short port) -{ -#ifdef AF_UNIX - if (family == AF_UNIX) { - if (wherelen + 1 > sizeof(ap->s_un.sun_path)) - return 0; - memset(&ap->s_un, 0, sizeof(ap->s_un)); - ap->s_un.sun_family = family; - strncpy(ap->s_un.sun_path, where, sizeof(ap->s_un.sun_path) - 1); - return 1; - } -#endif - if (family == AF_INET) { - if (wherelen != sizeof(struct in_addr)) - return 0; - memset(&ap->s_in, 0, sizeof(ap->s_in)); - ap->s_in.sin_family = family; - ap->s_in.sin_port = port; - ap->s_in.sin_addr = *(struct in_addr *)where; - return 1; - } -#ifdef AF_INET6 - if (family == AF_INET6) { - if (wherelen != sizeof(struct in6_addr)) - return 0; - memset(&ap->s_in6, 0, sizeof(ap->s_in6)); - ap->s_in6.sin6_family = family; - ap->s_in6.sin6_port = port; - ap->s_in6.sin6_addr = *(struct in6_addr *)where; - return 1; - } -#endif - - return 0; -} - -int BIO_ADDR_family(const BIO_ADDR *ap) -{ - return ap->sa.sa_family; -} - -int BIO_ADDR_rawaddress(const BIO_ADDR *ap, void *p, size_t *l) -{ - size_t len = 0; - const void *addrptr = NULL; - - if (ap->sa.sa_family == AF_INET) { - len = sizeof(ap->s_in.sin_addr); - addrptr = &ap->s_in.sin_addr; - } -#ifdef AF_INET6 - else if (ap->sa.sa_family == AF_INET6) { - len = sizeof(ap->s_in6.sin6_addr); - addrptr = &ap->s_in6.sin6_addr; - } -#endif -#ifdef AF_UNIX - else if (ap->sa.sa_family == AF_UNIX) { - len = strlen(ap->s_un.sun_path); - addrptr = &ap->s_un.sun_path; - } -#endif - - if (addrptr == NULL) - return 0; - - if (p != NULL) { - memcpy(p, addrptr, len); - } - if (l != NULL) - *l = len; - - return 1; -} - -unsigned short BIO_ADDR_rawport(const BIO_ADDR *ap) -{ - if (ap->sa.sa_family == AF_INET) - return ap->s_in.sin_port; -#ifdef AF_INET6 - if (ap->sa.sa_family == AF_INET6) - return ap->s_in6.sin6_port; -#endif - return 0; -} - -/*- - * addr_strings - helper function to get host and service names - * @ap: the BIO_ADDR that has the input info - * @numeric: 0 if actual names should be returned, 1 if the numeric - * representation should be returned. - * @hostname: a pointer to a pointer to a memory area to store the - * host name or numeric representation. Unused if NULL. - * @service: a pointer to a pointer to a memory area to store the - * service name or numeric representation. Unused if NULL. - * - * The return value is 0 on failure, with the error code in the error - * stack, and 1 on success. - */ -static int addr_strings(const BIO_ADDR *ap, int numeric, - char **hostname, char **service) -{ - if (BIO_sock_init() != 1) - return 0; - - if (1) { -#ifdef AI_PASSIVE - int ret = 0; - char host[NI_MAXHOST] = "", serv[NI_MAXSERV] = ""; - int flags = 0; - - if (numeric) - flags |= NI_NUMERICHOST | NI_NUMERICSERV; - - if ((ret = getnameinfo(BIO_ADDR_sockaddr(ap), - BIO_ADDR_sockaddr_size(ap), - host, sizeof(host), serv, sizeof(serv), - flags)) != 0) { -# ifdef EAI_SYSTEM - if (ret == EAI_SYSTEM) { - SYSerr(SYS_F_GETNAMEINFO, get_last_socket_error()); - BIOerr(BIO_F_ADDR_STRINGS, ERR_R_SYS_LIB); - } else -# endif - { - BIOerr(BIO_F_ADDR_STRINGS, ERR_R_SYS_LIB); - ERR_add_error_data(1, gai_strerror(ret)); - } - return 0; - } - - /* VMS getnameinfo() has a bug, it doesn't fill in serv, which - * leaves it with whatever garbage that happens to be there. - * However, we initialise serv with the empty string (serv[0] - * is therefore NUL), so it gets real easy to detect when things - * didn't go the way one might expect. - */ - if (serv[0] == '\0') { - BIO_snprintf(serv, sizeof(serv), "%d", - ntohs(BIO_ADDR_rawport(ap))); - } - - if (hostname != NULL) - *hostname = OPENSSL_strdup(host); - if (service != NULL) - *service = OPENSSL_strdup(serv); - } else { -#endif - if (hostname != NULL) - *hostname = OPENSSL_strdup(inet_ntoa(ap->s_in.sin_addr)); - if (service != NULL) { - char serv[6]; /* port is 16 bits => max 5 decimal digits */ - BIO_snprintf(serv, sizeof(serv), "%d", ntohs(ap->s_in.sin_port)); - *service = OPENSSL_strdup(serv); - } - } - - if ((hostname != NULL && *hostname == NULL) - || (service != NULL && *service == NULL)) { - if (hostname != NULL) { - OPENSSL_free(*hostname); - *hostname = NULL; - } - if (service != NULL) { - OPENSSL_free(*service); - *service = NULL; - } - BIOerr(BIO_F_ADDR_STRINGS, ERR_R_MALLOC_FAILURE); - return 0; - } - - return 1; -} - -char *BIO_ADDR_hostname_string(const BIO_ADDR *ap, int numeric) -{ - char *hostname = NULL; - - if (addr_strings(ap, numeric, &hostname, NULL)) - return hostname; - - return NULL; -} - -char *BIO_ADDR_service_string(const BIO_ADDR *ap, int numeric) -{ - char *service = NULL; - - if (addr_strings(ap, numeric, NULL, &service)) - return service; - - return NULL; -} - -char *BIO_ADDR_path_string(const BIO_ADDR *ap) -{ -#ifdef AF_UNIX - if (ap->sa.sa_family == AF_UNIX) - return OPENSSL_strdup(ap->s_un.sun_path); -#endif - return NULL; -} - -/* - * BIO_ADDR_sockaddr - non-public routine to return the struct sockaddr - * for a given BIO_ADDR. In reality, this is simply a type safe cast. - * The returned struct sockaddr is const, so it can't be tampered with. - */ -const struct sockaddr *BIO_ADDR_sockaddr(const BIO_ADDR *ap) -{ - return &(ap->sa); -} - -/* - * BIO_ADDR_sockaddr_noconst - non-public function that does the same - * as BIO_ADDR_sockaddr, but returns a non-const. USE WITH CARE, as - * it allows you to tamper with the data (and thereby the contents - * of the input BIO_ADDR). - */ -struct sockaddr *BIO_ADDR_sockaddr_noconst(BIO_ADDR *ap) -{ - return &(ap->sa); -} - -/* - * BIO_ADDR_sockaddr_size - non-public function that returns the size - * of the struct sockaddr the BIO_ADDR is using. If the protocol family - * isn't set or is something other than AF_INET, AF_INET6 or AF_UNIX, - * the size of the BIO_ADDR type is returned. - */ -socklen_t BIO_ADDR_sockaddr_size(const BIO_ADDR *ap) -{ - if (ap->sa.sa_family == AF_INET) - return sizeof(ap->s_in); -#ifdef AF_INET6 - if (ap->sa.sa_family == AF_INET6) - return sizeof(ap->s_in6); -#endif -#ifdef AF_UNIX - if (ap->sa.sa_family == AF_UNIX) - return sizeof(ap->s_un); -#endif - return sizeof(*ap); -} - -/********************************************************************** - * - * Address info database - * - */ - -const BIO_ADDRINFO *BIO_ADDRINFO_next(const BIO_ADDRINFO *bai) -{ - if (bai != NULL) - return bai->bai_next; - return NULL; -} - -int BIO_ADDRINFO_family(const BIO_ADDRINFO *bai) -{ - if (bai != NULL) - return bai->bai_family; - return 0; -} - -int BIO_ADDRINFO_socktype(const BIO_ADDRINFO *bai) -{ - if (bai != NULL) - return bai->bai_socktype; - return 0; -} - -int BIO_ADDRINFO_protocol(const BIO_ADDRINFO *bai) -{ - if (bai != NULL) { - if (bai->bai_protocol != 0) - return bai->bai_protocol; - -#ifdef AF_UNIX - if (bai->bai_family == AF_UNIX) - return 0; -#endif - - switch (bai->bai_socktype) { - case SOCK_STREAM: - return IPPROTO_TCP; - case SOCK_DGRAM: - return IPPROTO_UDP; - default: - break; - } - } - return 0; -} - -/* - * BIO_ADDRINFO_sockaddr_size - non-public function that returns the size - * of the struct sockaddr inside the BIO_ADDRINFO. - */ -socklen_t BIO_ADDRINFO_sockaddr_size(const BIO_ADDRINFO *bai) -{ - if (bai != NULL) - return bai->bai_addrlen; - return 0; -} - -/* - * BIO_ADDRINFO_sockaddr - non-public function that returns bai_addr - * as the struct sockaddr it is. - */ -const struct sockaddr *BIO_ADDRINFO_sockaddr(const BIO_ADDRINFO *bai) -{ - if (bai != NULL) - return bai->bai_addr; - return NULL; -} - -const BIO_ADDR *BIO_ADDRINFO_address(const BIO_ADDRINFO *bai) -{ - if (bai != NULL) - return (BIO_ADDR *)bai->bai_addr; - return NULL; -} - -void BIO_ADDRINFO_free(BIO_ADDRINFO *bai) -{ - if (bai == NULL) - return; - -#ifdef AI_PASSIVE -# ifdef AF_UNIX -# define _cond bai->bai_family != AF_UNIX -# else -# define _cond 1 -# endif - if (_cond) { - freeaddrinfo(bai); - return; - } -#endif - - /* Free manually when we know that addrinfo_wrap() was used. - * See further comment above addrinfo_wrap() - */ - while (bai != NULL) { - BIO_ADDRINFO *next = bai->bai_next; - OPENSSL_free(bai->bai_addr); - OPENSSL_free(bai); - bai = next; - } -} - -/********************************************************************** - * - * Service functions - * - */ - -/*- - * The specs in hostserv can take these forms: - * - * host:service => *host = "host", *service = "service" - * host:* => *host = "host", *service = NULL - * host: => *host = "host", *service = NULL - * :service => *host = NULL, *service = "service" - * *:service => *host = NULL, *service = "service" - * - * in case no : is present in the string, the result depends on - * hostserv_prio, as follows: - * - * when hostserv_prio == BIO_PARSE_PRIO_HOST - * host => *host = "host", *service untouched - * - * when hostserv_prio == BIO_PARSE_PRIO_SERV - * service => *host untouched, *service = "service" - * - */ -int BIO_parse_hostserv(const char *hostserv, char **host, char **service, - enum BIO_hostserv_priorities hostserv_prio) -{ - const char *h = NULL; size_t hl = 0; - const char *p = NULL; size_t pl = 0; - - if (*hostserv == '[') { - if ((p = strchr(hostserv, ']')) == NULL) - goto spec_err; - h = hostserv + 1; - hl = p - h; - p++; - if (*p == '\0') - p = NULL; - else if (*p != ':') - goto spec_err; - else { - p++; - pl = strlen(p); - } - } else { - const char *p2 = strrchr(hostserv, ':'); - p = strchr(hostserv, ':'); - - /*- - * Check for more than one colon. There are three possible - * interpretations: - * 1. IPv6 address with port number, last colon being separator. - * 2. IPv6 address only. - * 3. IPv6 address only if hostserv_prio == BIO_PARSE_PRIO_HOST, - * IPv6 address and port number if hostserv_prio == BIO_PARSE_PRIO_SERV - * Because of this ambiguity, we currently choose to make it an - * error. - */ - if (p != p2) - goto amb_err; - - if (p != NULL) { - h = hostserv; - hl = p - h; - p++; - pl = strlen(p); - } else if (hostserv_prio == BIO_PARSE_PRIO_HOST) { - h = hostserv; - hl = strlen(h); - } else { - p = hostserv; - pl = strlen(p); - } - } - - if (p != NULL && strchr(p, ':')) - goto spec_err; - - if (h != NULL && host != NULL) { - if (hl == 0 - || (hl == 1 && h[0] == '*')) { - *host = NULL; - } else { - *host = OPENSSL_strndup(h, hl); - if (*host == NULL) - goto memerr; - } - } - if (p != NULL && service != NULL) { - if (pl == 0 - || (pl == 1 && p[0] == '*')) { - *service = NULL; - } else { - *service = OPENSSL_strndup(p, pl); - if (*service == NULL) - goto memerr; - } - } - - return 1; - amb_err: - BIOerr(BIO_F_BIO_PARSE_HOSTSERV, BIO_R_AMBIGUOUS_HOST_OR_SERVICE); - return 0; - spec_err: - BIOerr(BIO_F_BIO_PARSE_HOSTSERV, BIO_R_MALFORMED_HOST_OR_SERVICE); - return 0; - memerr: - BIOerr(BIO_F_BIO_PARSE_HOSTSERV, ERR_R_MALLOC_FAILURE); - return 0; -} - -/* addrinfo_wrap is used to build our own addrinfo "chain". - * (it has only one entry, so calling it a chain may be a stretch) - * It should ONLY be called when getaddrinfo() and friends - * aren't available, OR when dealing with a non IP protocol - * family, such as AF_UNIX - * - * the return value is 1 on success, or 0 on failure, which - * only happens if a memory allocation error occurred. - */ -static int addrinfo_wrap(int family, int socktype, - const void *where, size_t wherelen, - unsigned short port, - BIO_ADDRINFO **bai) -{ - OPENSSL_assert(bai != NULL); - - *bai = OPENSSL_zalloc(sizeof(**bai)); - if (*bai == NULL) - return 0; - - (*bai)->bai_family = family; - (*bai)->bai_socktype = socktype; - if (socktype == SOCK_STREAM) - (*bai)->bai_protocol = IPPROTO_TCP; - if (socktype == SOCK_DGRAM) - (*bai)->bai_protocol = IPPROTO_UDP; -#ifdef AF_UNIX - if (family == AF_UNIX) - (*bai)->bai_protocol = 0; -#endif - { - /* Magic: We know that BIO_ADDR_sockaddr_noconst is really - just an advanced cast of BIO_ADDR* to struct sockaddr * - by the power of union, so while it may seem that we're - creating a memory leak here, we are not. It will be - all right. */ - BIO_ADDR *addr = BIO_ADDR_new(); - if (addr != NULL) { - BIO_ADDR_rawmake(addr, family, where, wherelen, port); - (*bai)->bai_addr = BIO_ADDR_sockaddr_noconst(addr); - } - } - (*bai)->bai_next = NULL; - if ((*bai)->bai_addr == NULL) { - BIO_ADDRINFO_free(*bai); - *bai = NULL; - return 0; - } - return 1; -} - -DEFINE_RUN_ONCE_STATIC(do_bio_lookup_init) -{ - OPENSSL_init_crypto(0, NULL); - bio_lookup_lock = CRYPTO_THREAD_lock_new(); - return bio_lookup_lock != NULL; -} - -/*- - * BIO_lookup - look up the node and service you want to connect to. - * @node: the node you want to connect to. - * @service: the service you want to connect to. - * @lookup_type: declare intent with the result, client or server. - * @family: the address family you want to use. Use AF_UNSPEC for any, or - * AF_INET, AF_INET6 or AF_UNIX. - * @socktype: The socket type you want to use. Can be SOCK_STREAM, SOCK_DGRAM - * or 0 for all. - * @res: Storage place for the resulting list of returned addresses - * - * This will do a lookup of the node and service that you want to connect to. - * It returns a linked list of different addresses you can try to connect to. - * - * When no longer needed you should call BIO_ADDRINFO_free() to free the result. - * - * The return value is 1 on success or 0 in case of error. - */ -int BIO_lookup(const char *host, const char *service, - enum BIO_lookup_type lookup_type, - int family, int socktype, BIO_ADDRINFO **res) -{ - int ret = 0; /* Assume failure */ - - switch(family) { - case AF_INET: -#ifdef AF_INET6 - case AF_INET6: -#endif -#ifdef AF_UNIX - case AF_UNIX: -#endif -#ifdef AF_UNSPEC - case AF_UNSPEC: -#endif - break; - default: - BIOerr(BIO_F_BIO_LOOKUP, BIO_R_UNSUPPORTED_PROTOCOL_FAMILY); - return 0; - } - -#ifdef AF_UNIX - if (family == AF_UNIX) { - if (addrinfo_wrap(family, socktype, host, strlen(host), 0, res)) - return 1; - else - BIOerr(BIO_F_BIO_LOOKUP, ERR_R_MALLOC_FAILURE); - return 0; - } -#endif - - if (BIO_sock_init() != 1) - return 0; - - if (1) { - int gai_ret = 0; -#ifdef AI_PASSIVE - struct addrinfo hints; - memset(&hints, 0, sizeof hints); - - hints.ai_family = family; - hints.ai_socktype = socktype; - - if (lookup_type == BIO_LOOKUP_SERVER) - hints.ai_flags |= AI_PASSIVE; - - /* Note that |res| SHOULD be a 'struct addrinfo **' thanks to - * macro magic in bio_lcl.h - */ - switch ((gai_ret = getaddrinfo(host, service, &hints, res))) { -# ifdef EAI_SYSTEM - case EAI_SYSTEM: - SYSerr(SYS_F_GETADDRINFO, get_last_socket_error()); - BIOerr(BIO_F_BIO_LOOKUP, ERR_R_SYS_LIB); - break; -# endif - case 0: - ret = 1; /* Success */ - break; - default: - BIOerr(BIO_F_BIO_LOOKUP, ERR_R_SYS_LIB); - ERR_add_error_data(1, gai_strerror(gai_ret)); - break; - } - } else { -#endif - const struct hostent *he; -/* - * Because struct hostent is defined for 32-bit pointers only with - * VMS C, we need to make sure that '&he_fallback_address' and - * '&he_fallback_addresses' are 32-bit pointers - */ -#if defined(OPENSSL_SYS_VMS) && defined(__DECC) -# pragma pointer_size save -# pragma pointer_size 32 -#endif - /* Windows doesn't seem to have in_addr_t */ -#ifdef OPENSSL_SYS_WINDOWS - static uint32_t he_fallback_address; - static const char *he_fallback_addresses[] = - { (char *)&he_fallback_address, NULL }; -#else - static in_addr_t he_fallback_address; - static const char *he_fallback_addresses[] = - { (char *)&he_fallback_address, NULL }; -#endif - static const struct hostent he_fallback = - { NULL, NULL, AF_INET, sizeof(he_fallback_address), - (char **)&he_fallback_addresses }; -#if defined(OPENSSL_SYS_VMS) && defined(__DECC) -# pragma pointer_size restore -#endif - - struct servent *se; - /* Apparently, on WIN64, s_proto and s_port have traded places... */ -#ifdef _WIN64 - struct servent se_fallback = { NULL, NULL, NULL, 0 }; -#else - struct servent se_fallback = { NULL, NULL, 0, NULL }; -#endif - - if (!RUN_ONCE(&bio_lookup_init, do_bio_lookup_init)) { - BIOerr(BIO_F_BIO_LOOKUP, ERR_R_MALLOC_FAILURE); - ret = 0; - goto err; - } - - CRYPTO_THREAD_write_lock(bio_lookup_lock); - he_fallback_address = INADDR_ANY; - if (host == NULL) { - he = &he_fallback; - switch(lookup_type) { - case BIO_LOOKUP_CLIENT: - he_fallback_address = INADDR_LOOPBACK; - break; - case BIO_LOOKUP_SERVER: - he_fallback_address = INADDR_ANY; - break; - default: - OPENSSL_assert(("We forgot to handle a lookup type!" == 0)); - break; - } - } else { - he = gethostbyname(host); - - if (he == NULL) { -#ifndef OPENSSL_SYS_WINDOWS - BIOerr(BIO_F_BIO_LOOKUP, ERR_R_SYS_LIB); - ERR_add_error_data(1, hstrerror(h_errno)); -#else - SYSerr(SYS_F_GETHOSTBYNAME, WSAGetLastError()); -#endif - ret = 0; - goto err; - } - } - - if (service == NULL) { - se_fallback.s_port = 0; - se_fallback.s_proto = NULL; - se = &se_fallback; - } else { - char *endp = NULL; - long portnum = strtol(service, &endp, 10); - -/* - * Because struct servent is defined for 32-bit pointers only with - * VMS C, we need to make sure that 'proto' is a 32-bit pointer. - */ -#if defined(OPENSSL_SYS_VMS) && defined(__DECC) -# pragma pointer_size save -# pragma pointer_size 32 -#endif - char *proto = NULL; -#if defined(OPENSSL_SYS_VMS) && defined(__DECC) -# pragma pointer_size restore -#endif - - switch (socktype) { - case SOCK_STREAM: - proto = "tcp"; - break; - case SOCK_DGRAM: - proto = "udp"; - break; - } - - if (endp != service && *endp == '\0' - && portnum > 0 && portnum < 65536) { - se_fallback.s_port = htons(portnum); - se_fallback.s_proto = proto; - se = &se_fallback; - } else if (endp == service) { - se = getservbyname(service, proto); - - if (se == NULL) { -#ifndef OPENSSL_SYS_WINDOWS - BIOerr(BIO_F_BIO_LOOKUP, ERR_R_SYS_LIB); - ERR_add_error_data(1, hstrerror(h_errno)); -#else - SYSerr(SYS_F_GETSERVBYNAME, WSAGetLastError()); -#endif - goto err; - } - } else { - BIOerr(BIO_F_BIO_LOOKUP, BIO_R_MALFORMED_HOST_OR_SERVICE); - goto err; - } - } - - *res = NULL; - - { -/* - * Because hostent::h_addr_list is an array of 32-bit pointers with VMS C, - * we must make sure our iterator designates the same element type, hence - * the pointer size dance. - */ -#if defined(OPENSSL_SYS_VMS) && defined(__DECC) -# pragma pointer_size save -# pragma pointer_size 32 -#endif - char **addrlistp; -#if defined(OPENSSL_SYS_VMS) && defined(__DECC) -# pragma pointer_size restore -#endif - size_t addresses; - BIO_ADDRINFO *tmp_bai = NULL; - - /* The easiest way to create a linked list from an - array is to start from the back */ - for(addrlistp = he->h_addr_list; *addrlistp != NULL; - addrlistp++) - ; - - for(addresses = addrlistp - he->h_addr_list; - addrlistp--, addresses-- > 0; ) { - if (!addrinfo_wrap(he->h_addrtype, socktype, - *addrlistp, he->h_length, - se->s_port, &tmp_bai)) - goto addrinfo_malloc_err; - tmp_bai->bai_next = *res; - *res = tmp_bai; - continue; - addrinfo_malloc_err: - BIO_ADDRINFO_free(*res); - *res = NULL; - BIOerr(BIO_F_BIO_LOOKUP, ERR_R_MALLOC_FAILURE); - ret = 0; - goto err; - } - - ret = 1; - } - err: - CRYPTO_THREAD_unlock(bio_lookup_lock); - } - - return ret; -} - -#endif /* OPENSSL_NO_SOCK */ |