diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/bio/b_addr.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/bio/b_addr.c | 883 |
1 files changed, 883 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/bio/b_addr.c b/openssl-1.1.0h/crypto/bio/b_addr.c new file mode 100644 index 0000000..aea843a --- /dev/null +++ b/openssl-1.1.0h/crypto/bio/b_addr.c @@ -0,0 +1,883 @@ +/* + * 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> + +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 (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) { +#ifdef AI_PASSIVE + int gai_ret = 0; + 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 + /* + * This might be misleading, because h_errno is used as if + * it was errno. To minimize mixup add 1000. Underlying + * reason for this is that hstrerror is declared obsolete, + * not to mention that a) h_errno is not always guaranteed + * to be meaningless; b) hstrerror can reside in yet another + * library, linking for sake of hstrerror is an overkill; + * c) this path is not executed on contemporary systems + * anyway [above getaddrinfo/gai_strerror is]. We just let + * system administrator figure this out... + */ + SYSerr(SYS_F_GETHOSTBYNAME, 1000 + 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 + SYSerr(SYS_F_GETSERVBYNAME, 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 */ |