-/* ====================================================================
- * Copyright (c) 2015 The OpenSSL 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. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED 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 OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR 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 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
+/*
+ * Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the Apache License 2.0 (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 <assert.h>
#include <string.h>
#include "bio_lcl.h"
-#include "internal/threads.h"
+#include <openssl/crypto.h>
#ifndef OPENSSL_NO_SOCK
#include <openssl/err.h>
#include <openssl/buffer.h>
-#include <ctype.h>
+#include "internal/thread_once.h"
-static CRYPTO_RWLOCK *bio_lookup_lock;
+CRYPTO_RWLOCK *bio_lookup_lock;
static CRYPTO_ONCE bio_lookup_init = CRYPTO_ONCE_STATIC_INIT;
/*
{
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;
}
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;
+ memcpy(&(ap->s_in), sa, sizeof(struct sockaddr_in));
return 1;
}
#ifdef AF_INET6
if (sa->sa_family == AF_INET6) {
- ap->s_in6 = *(const struct sockaddr_in6 *)sa;
+ memcpy(&(ap->s_in6), sa, sizeof(struct sockaddr_in6));
return 1;
}
#endif
#ifdef AF_UNIX
- if (ap->sa.sa_family == AF_UNIX) {
- ap->s_un = *(const struct sockaddr_un *)sa;
+ if (sa->sa_family == AF_UNIX) {
+ memcpy(&(ap->s_un), sa, sizeof(struct sockaddr_un));
return 1;
}
#endif
flags)) != 0) {
# ifdef EAI_SYSTEM
if (ret == EAI_SYSTEM) {
- SYSerr(SYS_F_GETNAMEINFO, get_last_socket_error());
+ ERR_raise_data(ERR_LIB_SYS, get_last_socket_error(),
+ "calling getnameinfo()");
BIOerr(BIO_F_ADDR_STRINGS, ERR_R_SYS_LIB);
} else
# endif
ntohs(BIO_ADDR_rawport(ap)));
}
- if (hostname)
+ if (hostname != NULL)
*hostname = OPENSSL_strdup(host);
- if (service)
+ if (service != NULL)
*service = OPENSSL_strdup(serv);
} else {
#endif
- if (hostname)
+ if (hostname != NULL)
*hostname = OPENSSL_strdup(inet_ntoa(ap->s_in.sin_addr));
- if (service) {
+ 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;
}
* family, such as AF_UNIX
*
* the return value is 1 on success, or 0 on failure, which
- * only happens if a memory allocation error occured.
+ * 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)
+ if ((*bai = OPENSSL_zalloc(sizeof(**bai))) == NULL) {
+ BIOerr(BIO_F_ADDRINFO_WRAP, ERR_R_MALLOC_FAILURE);
return 0;
+ }
(*bai)->bai_family = family;
(*bai)->bai_socktype = socktype;
return 1;
}
-static void do_bio_lookup_init(void)
+DEFINE_RUN_ONCE_STATIC(do_bio_lookup_init)
{
+ if (!OPENSSL_init_crypto(0, NULL))
+ return 0;
bio_lookup_lock = CRYPTO_THREAD_lock_new();
+ return bio_lookup_lock != NULL;
+}
+
+int BIO_lookup(const char *host, const char *service,
+ enum BIO_lookup_type lookup_type,
+ int family, int socktype, BIO_ADDRINFO **res)
+{
+ return BIO_lookup_ex(host, service, lookup_type, family, socktype, 0, res);
}
/*-
- * BIO_lookup - look up the node and service you want to connect to.
+ * BIO_lookup_ex - 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.
* 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.
+ * @protocol: The protocol to use, e.g. IPPROTO_TCP or IPPROTO_UDP or 0 for all.
+ * Note that some platforms may not return IPPROTO_SCTP without
+ * explicitly requesting it (i.e. IPPROTO_SCTP may not be returned
+ * with 0 for the protocol)
* @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.
*
* 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 BIO_lookup_ex(const char *host, const char *service, int lookup_type,
+ int family, int socktype, int protocol, BIO_ADDRINFO **res)
{
int ret = 0; /* Assume failure */
#endif
break;
default:
- BIOerr(BIO_F_BIO_LOOKUP, BIO_R_UNSUPPORTED_PROTOCOL_FAMILY);
+ BIOerr(BIO_F_BIO_LOOKUP_EX, BIO_R_UNSUPPORTED_PROTOCOL_FAMILY);
return 0;
}
if (addrinfo_wrap(family, socktype, host, strlen(host), 0, res))
return 1;
else
- BIOerr(BIO_F_BIO_LOOKUP, ERR_R_MALLOC_FAILURE);
+ BIOerr(BIO_F_BIO_LOOKUP_EX, ERR_R_MALLOC_FAILURE);
return 0;
}
#endif
return 0;
if (1) {
- int gai_ret = 0;
#ifdef AI_PASSIVE
+ int gai_ret = 0;
struct addrinfo hints;
- memset(&hints, 0, sizeof hints);
-# ifdef AI_ADDRCONFIG
- hints.ai_flags = AI_ADDRCONFIG;
-# endif
+ memset(&hints, 0, sizeof(hints));
+
hints.ai_family = family;
hints.ai_socktype = socktype;
+ hints.ai_protocol = protocol;
+#ifdef AI_ADDRCONFIG
+#ifdef AF_UNSPEC
+ if (family == AF_UNSPEC)
+#endif
+ hints.ai_flags |= AI_ADDRCONFIG;
+#endif
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
*/
+ retry:
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);
+ ERR_raise_data(ERR_LIB_SYS, get_last_socket_error(),
+ "calling getaddrinfo()");
+ BIOerr(BIO_F_BIO_LOOKUP_EX, ERR_R_SYS_LIB);
break;
# endif
case 0:
ret = 1; /* Success */
break;
default:
- BIOerr(BIO_F_BIO_LOOKUP, ERR_R_SYS_LIB);
+# if defined(AI_ADDRCONFIG) && defined(AI_NUMERICHOST)
+ if (hints.ai_flags & AI_ADDRCONFIG) {
+ hints.ai_flags &= ~AI_ADDRCONFIG;
+ hints.ai_flags |= AI_NUMERICHOST;
+ goto retry;
+ }
+# endif
+ BIOerr(BIO_F_BIO_LOOKUP_EX, 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 uint32_t *he_fallback_addresses[] =
- { &he_fallback_address, NULL };
+ static const char *he_fallback_addresses[] =
+ { (char *)&he_fallback_address, NULL };
#else
static in_addr_t he_fallback_address;
- static const in_addr_t *he_fallback_addresses[] =
- { &he_fallback_address, NULL };
+ 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;
- /* Apprently, on WIN64, s_proto and s_port have traded places... */
+ /* 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
- char *proto = NULL;
- CRYPTO_THREAD_run_once(&bio_lookup_init, do_bio_lookup_init);
+ if (!RUN_ONCE(&bio_lookup_init, do_bio_lookup_init)) {
+ BIOerr(BIO_F_BIO_LOOKUP_EX, ERR_R_MALLOC_FAILURE);
+ ret = 0;
+ goto err;
+ }
CRYPTO_THREAD_write_lock(bio_lookup_lock);
he_fallback_address = INADDR_ANY;
he_fallback_address = INADDR_ANY;
break;
default:
- OPENSSL_assert(("We forgot to handle a lookup type!" == 0));
- break;
+ /* We forgot to handle a lookup type! */
+ assert("We forgot to handle a lookup type!" == NULL);
+ BIOerr(BIO_F_BIO_LOOKUP_EX, ERR_R_INTERNAL_ERROR);
+ ret = 0;
+ goto err;
}
} 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));
+ /*
+ * 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...
+ */
+# if defined(OPENSSL_SYS_VXWORKS)
+ /* h_errno doesn't exist on VxWorks */
+ ERR_raise_data(ERR_LIB_SYS, 1000,
+ "calling gethostbyname()");
+# else
+ ERR_raise_data(ERR_LIB_SYS, 1000 + h_errno,
+ "calling gethostbyname()");
+# endif
#else
- SYSerr(SYS_F_GETHOSTBYNAME, WSAGetLastError());
+ ERR_raise_data(ERR_LIB_SYS, get_last_socket_error(),
+ "calling gethostbyname()");
#endif
ret = 0;
goto err;
if (service == NULL) {
se_fallback.s_port = 0;
- se_fallback.s_proto = proto;
+ 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_port = htons((unsigned short)portnum);
se_fallback.s_proto = proto;
se = &se_fallback;
} else if (endp == service) {
- switch (socktype) {
- case SOCK_STREAM:
- proto = "tcp";
- break;
- case SOCK_DGRAM:
- proto = "udp";
- break;
- }
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
+ ERR_raise_data(ERR_LIB_SYS, get_last_socket_error(),
+ "calling getservbyname()");
goto err;
}
} else {
- BIOerr(BIO_F_BIO_LOOKUP, BIO_R_MALFORMED_HOST_OR_SERVICE);
+ BIOerr(BIO_F_BIO_LOOKUP_EX, 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;
addrinfo_malloc_err:
BIO_ADDRINFO_free(*res);
*res = NULL;
- BIOerr(BIO_F_BIO_LOOKUP, ERR_R_MALLOC_FAILURE);
+ BIOerr(BIO_F_BIO_LOOKUP_EX, ERR_R_MALLOC_FAILURE);
ret = 0;
goto err;
}
return ret;
}
+
#endif /* OPENSSL_NO_SOCK */
projects / openssl.git / blobdiff