Revert lots of Cryptlib updates.

OpenSSL changes quite a bit of the key validation, and most of the keys
I can find in the wild aren't marked as trusted by the new checker.

Intel noticed this too: https://github.com/vathpela/edk2/commit/f536d7c3ed
but instead of fixing the compatibility error, they switched their test
data to match the bug.

So that's pretty broken.

For now, I'm reverting OpenSSL 1.1.0e, because we need those certs in
the wild to work.

This reverts commit 513cbe2aea689bf968f171f894f3d4cdb43524d5.
This reverts commit e9cc33d6f2b7f35c6f5e349fd83fb9ae0bc66226.
This reverts commit 80d49f758ead0180bfe6161931838e0578248303.
This reverts commit 9bc647e2b23bcfd69a0077c0717fbc454c919a57.
This reverts commit ae75df6232ad30f3e8736e9449692d58a7439260.
This reverts commit e883479f35644d17db7efed710657c8543cfcb68.
This reverts commit 97469449fda5ba933a64280917e776487301a127.
This reverts commit e39692647f78e13d757ddbfdd36f440d5f526050.
This reverts commit 0f3dfc01e2d5e7df882c963dd8dc4a0dfbfc96ad.
This reverts commit 4da6ac819510c7cc4ba21d7a735d69b45daa5873.
This reverts commit d064bd7eef201f26cb926450a76260b5187ac689.
This reverts commit 9bc86cfd6f9387f0da9d5c0102b6aa5627e91c91.
This reverts commit ab9a05a10f16b33f7ee1e9da360c7801eebdb9d2.

Signed-off-by: Peter Jones <pjones@redhat.com>

1 files changed, 751 insertions, 170 deletions

diff --git a/Cryptlib/OpenSSL/crypto/bio/b_sock.c b/Cryptlib/OpenSSL/crypto/bio/b_sock.c
index ac2c2d16..5bad0a2b 100644
--- a/Cryptlib/OpenSSL/crypto/bio/b_sock.c
+++ b/Cryptlib/OpenSSL/crypto/bio/b_sock.c
@@ -1,21 +1,76 @@
-/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+/* crypto/bio/b_sock.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
  *
- * 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
+ * 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 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 acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * 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 AUTHOR OR 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.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
  */
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <errno.h>
-#include "bio_lcl.h"
-#if defined(NETWARE_CLIB)
-# include <sys/ioctl.h>
+#define USE_SOCKETS
+#include "cryptlib.h"
+#include <openssl/bio.h>
+#if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_BSDSOCK)
+# include <netdb.h>
+# if defined(NETWARE_CLIB)
+#  include <sys/ioctl.h>
 NETDB_DEFINE_CONTEXT
+# endif
 #endif
 #ifndef OPENSSL_NO_SOCK
+# include <openssl/dso.h>
 # define SOCKET_PROTOCOL IPPROTO_TCP
 # ifdef SO_MAXCONN
 #  define MAX_LISTEN  SO_MAXCONN
@@ -24,93 +79,294 @@ NETDB_DEFINE_CONTEXT
 # else
 #  define MAX_LISTEN  32
 # endif
-# if defined(OPENSSL_SYS_WINDOWS)
+# if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK))
 static int wsa_init_done = 0;
 # endif
 
-# if OPENSSL_API_COMPAT < 0x10100000L
+/*
+ * WSAAPI specifier is required to make indirect calls to run-time
+ * linked WinSock 2 functions used in this module, to be specific
+ * [get|free]addrinfo and getnameinfo. This is because WinSock uses
+ * uses non-C calling convention, __stdcall vs. __cdecl, on x86
+ * Windows. On non-WinSock platforms WSAAPI needs to be void.
+ */
+# ifndef WSAAPI
+#  define WSAAPI
+# endif
+
+# if 0
+static unsigned long BIO_ghbn_hits = 0L;
+static unsigned long BIO_ghbn_miss = 0L;
+
+#  define GHBN_NUM        4
+static struct ghbn_cache_st {
+    char name[129];
+    struct hostent *ent;
+    unsigned long order;
+} ghbn_cache[GHBN_NUM];
+# endif
+
+static int get_ip(const char *str, unsigned char *ip);
+# if 0
+static void ghbn_free(struct hostent *a);
+static struct hostent *ghbn_dup(struct hostent *a);
+# endif
 int BIO_get_host_ip(const char *str, unsigned char *ip)
 {
-    BIO_ADDRINFO *res = NULL;
-    int ret = 0;
+    int i;
+    int err = 1;
+    int locked = 0;
+    struct hostent *he;
 
+    i = get_ip(str, ip);
+    if (i < 0) {
+        BIOerr(BIO_F_BIO_GET_HOST_IP, BIO_R_INVALID_IP_ADDRESS);
+        goto err;
+    }
+
+    /*
+     * At this point, we have something that is most probably correct in some
+     * way, so let's init the socket.
+     */
     if (BIO_sock_init() != 1)
         return 0;               /* don't generate another error code here */
 
-    if (BIO_lookup(str, NULL, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) {
-        size_t l;
-
-        if (BIO_ADDRINFO_family(res) != AF_INET) {
-            BIOerr(BIO_F_BIO_GET_HOST_IP,
-                   BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET);
-        } else {
-            BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), NULL, &l);
-            /* Because only AF_INET addresses will reach this far,
-               we can assert that l should be 4 */
-            OPENSSL_assert(l == 4);
+    /*
+     * If the string actually contained an IP address, we need not do
+     * anything more
+     */
+    if (i > 0)
+        return (1);
+
+    /* do a gethostbyname */
+    CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME);
+    locked = 1;
+    he = BIO_gethostbyname(str);
+    if (he == NULL) {
+        BIOerr(BIO_F_BIO_GET_HOST_IP, BIO_R_BAD_HOSTNAME_LOOKUP);
+        goto err;
+    }
 
-            BIO_ADDR_rawaddress(BIO_ADDRINFO_address(res), ip, &l);
-            ret = 1;
-        }
-        BIO_ADDRINFO_free(res);
-    } else {
-        ERR_add_error_data(2, "host=", str);
+    /* cast to short because of win16 winsock definition */
+    if ((short)he->h_addrtype != AF_INET) {
+        BIOerr(BIO_F_BIO_GET_HOST_IP,
+               BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET);
+        goto err;
     }
+    for (i = 0; i < 4; i++)
+        ip[i] = he->h_addr_list[0][i];
+    err = 0;
 
-    return ret;
+ err:
+    if (locked)
+        CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME);
+    if (err) {
+        ERR_add_error_data(2, "host=", str);
+        return 0;
+    } else
+        return 1;
 }
 
 int BIO_get_port(const char *str, unsigned short *port_ptr)
 {
-    BIO_ADDRINFO *res = NULL;
-    int ret = 0;
+    int i;
+    struct servent *s;
 
     if (str == NULL) {
         BIOerr(BIO_F_BIO_GET_PORT, BIO_R_NO_PORT_DEFINED);
         return (0);
     }
-
-    if (BIO_sock_init() != 1)
-        return 0;               /* don't generate another error code here */
-
-    if (BIO_lookup(NULL, str, BIO_LOOKUP_CLIENT, AF_INET, SOCK_STREAM, &res)) {
-        if (BIO_ADDRINFO_family(res) != AF_INET) {
-            BIOerr(BIO_F_BIO_GET_PORT,
-                   BIO_R_ADDRINFO_ADDR_IS_NOT_AF_INET);
-        } else {
-            *port_ptr = ntohs(BIO_ADDR_rawport(BIO_ADDRINFO_address(res)));
-            ret = 1;
+    i = atoi(str);
+    if (i != 0)
+        *port_ptr = (unsigned short)i;
+    else {
+        CRYPTO_w_lock(CRYPTO_LOCK_GETSERVBYNAME);
+        /*
+         * Note: under VMS with SOCKETSHR, it seems like the first parameter
+         * is 'char *', instead of 'const char *'
+         */
+# ifndef CONST_STRICT
+        s = getservbyname((char *)str, "tcp");
+# else
+        s = getservbyname(str, "tcp");
+# endif
+        if (s != NULL)
+            *port_ptr = ntohs((unsigned short)s->s_port);
+        CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME);
+        if (s == NULL) {
+            if (strcmp(str, "http") == 0)
+                *port_ptr = 80;
+            else if (strcmp(str, "telnet") == 0)
+                *port_ptr = 23;
+            else if (strcmp(str, "socks") == 0)
+                *port_ptr = 1080;
+            else if (strcmp(str, "https") == 0)
+                *port_ptr = 443;
+            else if (strcmp(str, "ssl") == 0)
+                *port_ptr = 443;
+            else if (strcmp(str, "ftp") == 0)
+                *port_ptr = 21;
+            else if (strcmp(str, "gopher") == 0)
+                *port_ptr = 70;
+# if 0
+            else if (strcmp(str, "wais") == 0)
+                *port_ptr = 21;
+# endif
+            else {
+                SYSerr(SYS_F_GETSERVBYNAME, get_last_socket_error());
+                ERR_add_error_data(3, "service='", str, "'");
+                return (0);
+            }
         }
-        BIO_ADDRINFO_free(res);
-    } else {
-        ERR_add_error_data(2, "host=", str);
     }
-
-    return ret;
+    return (1);
 }
-# endif
 
 int BIO_sock_error(int sock)
 {
-    int j = 0, i;
-    socklen_t size = sizeof(j);
+    int j, i;
+    union {
+        size_t s;
+        int i;
+    } size;
+
+# if defined(OPENSSL_SYS_BEOS_R5)
+    return 0;
+# endif
 
+    /* heuristic way to adapt for platforms that expect 64-bit optlen */
+    size.s = 0, size.i = sizeof(j);
     /*
      * Note: under Windows the third parameter is of type (char *) whereas
      * under other systems it is (void *) if you don't have a cast it will
      * choke the compiler: if you do have a cast then you can either go for
      * (char *) or (void *).
      */
-    i = getsockopt(sock, SOL_SOCKET, SO_ERROR, (void *)&j, &size);
+    i = getsockopt(sock, SOL_SOCKET, SO_ERROR, (void *)&j, (void *)&size);
     if (i < 0)
-        return (get_last_socket_error());
+        return (1);
     else
         return (j);
 }
 
-# if OPENSSL_API_COMPAT < 0x10100000L
+# if 0
+long BIO_ghbn_ctrl(int cmd, int iarg, char *parg)
+{
+    int i;
+    char **p;
+
+    switch (cmd) {
+    case BIO_GHBN_CTRL_HITS:
+        return (BIO_ghbn_hits);
+        /* break; */
+    case BIO_GHBN_CTRL_MISSES:
+        return (BIO_ghbn_miss);
+        /* break; */
+    case BIO_GHBN_CTRL_CACHE_SIZE:
+        return (GHBN_NUM);
+        /* break; */
+    case BIO_GHBN_CTRL_GET_ENTRY:
+        if ((iarg >= 0) && (iarg < GHBN_NUM) && (ghbn_cache[iarg].order > 0)) {
+            p = (char **)parg;
+            if (p == NULL)
+                return (0);
+            *p = ghbn_cache[iarg].name;
+            ghbn_cache[iarg].name[128] = '\0';
+            return (1);
+        }
+        return (0);
+        /* break; */
+    case BIO_GHBN_CTRL_FLUSH:
+        for (i = 0; i < GHBN_NUM; i++)
+            ghbn_cache[i].order = 0;
+        break;
+    default:
+        return (0);
+    }
+    return (1);
+}
+# endif
+
+# if 0
+static struct hostent *ghbn_dup(struct hostent *a)
+{
+    struct hostent *ret;
+    int i, j;
+
+    MemCheck_off();
+    ret = (struct hostent *)OPENSSL_malloc(sizeof(struct hostent));
+    if (ret == NULL)
+        return (NULL);
+    memset(ret, 0, sizeof(struct hostent));
+
+    for (i = 0; a->h_aliases[i] != NULL; i++) ;
+    i++;
+    ret->h_aliases = (char **)OPENSSL_malloc(i * sizeof(char *));
+    if (ret->h_aliases == NULL)
+        goto err;
+    memset(ret->h_aliases, 0, i * sizeof(char *));
+
+    for (i = 0; a->h_addr_list[i] != NULL; i++) ;
+    i++;
+    ret->h_addr_list = (char **)OPENSSL_malloc(i * sizeof(char *));
+    if (ret->h_addr_list == NULL)
+        goto err;
+    memset(ret->h_addr_list, 0, i * sizeof(char *));
+
+    j = strlen(a->h_name) + 1;
+    if ((ret->h_name = OPENSSL_malloc(j)) == NULL)
+        goto err;
+    memcpy((char *)ret->h_name, a->h_name, j);
+    for (i = 0; a->h_aliases[i] != NULL; i++) {
+        j = strlen(a->h_aliases[i]) + 1;
+        if ((ret->h_aliases[i] = OPENSSL_malloc(j)) == NULL)
+            goto err;
+        memcpy(ret->h_aliases[i], a->h_aliases[i], j);
+    }
+    ret->h_length = a->h_length;
+    ret->h_addrtype = a->h_addrtype;
+    for (i = 0; a->h_addr_list[i] != NULL; i++) {
+        if ((ret->h_addr_list[i] = OPENSSL_malloc(a->h_length)) == NULL)
+            goto err;
+        memcpy(ret->h_addr_list[i], a->h_addr_list[i], a->h_length);
+    }
+    if (0) {
+ err:
+        if (ret != NULL)
+            ghbn_free(ret);
+        ret = NULL;
+    }
+    MemCheck_on();
+    return (ret);
+}
+
+static void ghbn_free(struct hostent *a)
+{
+    int i;
+
+    if (a == NULL)
+        return;
+
+    if (a->h_aliases != NULL) {
+        for (i = 0; a->h_aliases[i] != NULL; i++)
+            OPENSSL_free(a->h_aliases[i]);
+        OPENSSL_free(a->h_aliases);
+    }
+    if (a->h_addr_list != NULL) {
+        for (i = 0; a->h_addr_list[i] != NULL; i++)
+            OPENSSL_free(a->h_addr_list[i]);
+        OPENSSL_free(a->h_addr_list);
+    }
+    if (a->h_name != NULL)
+        OPENSSL_free(a->h_name);
+    OPENSSL_free(a);
+}
+
+# endif
+
 struct hostent *BIO_gethostbyname(const char *name)
 {
+# if 1
     /*
      * Caching gethostbyname() results forever is wrong, so we have to let
      * the true gethostbyname() worry about this
@@ -120,8 +376,83 @@ struct hostent *BIO_gethostbyname(const char *name)
 #  else
     return gethostbyname(name);
 #  endif
-}
+# else
+    struct hostent *ret;
+    int i, lowi = 0, j;
+    unsigned long low = (unsigned long)-1;
+
+#  if 0
+    /*
+     * It doesn't make sense to use locking here: The function interface is
+     * not thread-safe, because threads can never be sure when some other
+     * thread destroys the data they were given a pointer to.
+     */
+    CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME);
+#  endif
+    j = strlen(name);
+    if (j < 128) {
+        for (i = 0; i < GHBN_NUM; i++) {
+            if (low > ghbn_cache[i].order) {
+                low = ghbn_cache[i].order;
+                lowi = i;
+            }
+            if (ghbn_cache[i].order > 0) {
+                if (strncmp(name, ghbn_cache[i].name, 128) == 0)
+                    break;
+            }
+        }
+    } else
+        i = GHBN_NUM;
+
+    if (i == GHBN_NUM) {        /* no hit */
+        BIO_ghbn_miss++;
+        /*
+         * Note: under VMS with SOCKETSHR, it seems like the first parameter
+         * is 'char *', instead of 'const char *'
+         */
+#  ifndef CONST_STRICT
+        ret = gethostbyname((char *)name);
+#  else
+        ret = gethostbyname(name);
+#  endif
+
+        if (ret == NULL)
+            goto end;
+        if (j > 128) {          /* too big to cache */
+#  if 0
+            /*
+             * If we were trying to make this function thread-safe (which is
+             * bound to fail), we'd have to give up in this case (or allocate
+             * more memory).
+             */
+            ret = NULL;
+#  endif
+            goto end;
+        }
+
+        /* else add to cache */
+        if (ghbn_cache[lowi].ent != NULL)
+            ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */
+        ghbn_cache[lowi].name[0] = '\0';
+
+        if ((ret = ghbn_cache[lowi].ent = ghbn_dup(ret)) == NULL) {
+            BIOerr(BIO_F_BIO_GETHOSTBYNAME, ERR_R_MALLOC_FAILURE);
+            goto end;
+        }
+        strncpy(ghbn_cache[lowi].name, name, 128);
+        ghbn_cache[lowi].order = BIO_ghbn_miss + BIO_ghbn_hits;
+    } else {
+        BIO_ghbn_hits++;
+        ret = ghbn_cache[i].ent;
+        ghbn_cache[i].order = BIO_ghbn_miss + BIO_ghbn_hits;
+    }
+ end:
+#  if 0
+    CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME);
+#  endif
+    return (ret);
 # endif
+}
 
 int BIO_sock_init(void)
 {
@@ -135,7 +466,7 @@ int BIO_sock_init(void)
         memset(&wsa_state, 0, sizeof(wsa_state));
         /*
          * Not making wsa_state available to the rest of the code is formally
-         * wrong. But the structures we use are [believed to be] invariable
+         * wrong. But the structures we use are [beleived to be] invariable
          * among Winsock DLLs, while API availability is [expected to be]
          * probed at run-time with DSO_global_lookup.
          */
@@ -154,14 +485,40 @@ int BIO_sock_init(void)
         return (-1);
 # endif
 
+# if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
+    WORD wVerReq;
+    WSADATA wsaData;
+    int err;
+
+    if (!wsa_init_done) {
+        wsa_init_done = 1;
+        wVerReq = MAKEWORD(2, 0);
+        err = WSAStartup(wVerReq, &wsaData);
+        if (err != 0) {
+            SYSerr(SYS_F_WSASTARTUP, err);
+            BIOerr(BIO_F_BIO_SOCK_INIT, BIO_R_WSASTARTUP);
+            return (-1);
+        }
+    }
+# endif
+
     return (1);
 }
 
-void bio_sock_cleanup_int(void)
+void BIO_sock_cleanup(void)
 {
 # ifdef OPENSSL_SYS_WINDOWS
     if (wsa_init_done) {
         wsa_init_done = 0;
+#  if 0                         /* this call is claimed to be non-present in
+                                 * Winsock2 */
+        WSACancelBlockingCall();
+#  endif
+        WSACleanup();
+    }
+# elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
+    if (wsa_init_done) {
+        wsa_init_done = 0;
         WSACleanup();
     }
 # endif
@@ -208,83 +565,369 @@ int BIO_socket_ioctl(int fd, long type, void *arg)
 }
 # endif                         /* __VMS_VER */
 
-# if OPENSSL_API_COMPAT < 0x10100000L
-int BIO_get_accept_socket(char *host, int bind_mode)
+/*
+ * The reason I have implemented this instead of using sscanf is because
+ * Visual C 1.52c gives an unresolved external when linking a DLL :-(
+ */
+static int get_ip(const char *str, unsigned char ip[4])
 {
-    int s = INVALID_SOCKET;
-    char *h = NULL, *p = NULL;
-    BIO_ADDRINFO *res = NULL;
+    unsigned int tmp[4];
+    int num = 0, c, ok = 0;
+
+    tmp[0] = tmp[1] = tmp[2] = tmp[3] = 0;
+
+    for (;;) {
+        c = *(str++);
+        if ((c >= '0') && (c <= '9')) {
+            ok = 1;
+            tmp[num] = tmp[num] * 10 + c - '0';
+            if (tmp[num] > 255)
+                return (0);
+        } else if (c == '.') {
+            if (!ok)
+                return (-1);
+            if (num == 3)
+                return (0);
+            num++;
+            ok = 0;
+        } else if (c == '\0' && (num == 3) && ok)
+            break;
+        else
+            return (0);
+    }
+    ip[0] = tmp[0];
+    ip[1] = tmp[1];
+    ip[2] = tmp[2];
+    ip[3] = tmp[3];
+    return (1);
+}
 
-    if (!BIO_parse_hostserv(host, &h, &p, BIO_PARSE_PRIO_SERV))
-        return INVALID_SOCKET;
+int BIO_get_accept_socket(char *host, int bind_mode)
+{
+    int ret = 0;
+    union {
+        struct sockaddr sa;
+        struct sockaddr_in sa_in;
+# if OPENSSL_USE_IPV6
+        struct sockaddr_in6 sa_in6;
+# endif
+    } server, client;
+    int s = INVALID_SOCKET, cs, addrlen;
+    unsigned char ip[4];
+    unsigned short port;
+    char *str = NULL, *e;
+    char *h, *p;
+    unsigned long l;
+    int err_num;
 
     if (BIO_sock_init() != 1)
-        return INVALID_SOCKET;
+        return (INVALID_SOCKET);
+
+    if ((str = BUF_strdup(host)) == NULL)
+        return (INVALID_SOCKET);
+
+    h = p = NULL;
+    h = str;
+    for (e = str; *e; e++) {
+        if (*e == ':') {
+            p = e;
+        } else if (*e == '/') {
+            *e = '\0';
+            break;
+        }
+    }
+    if (p)
+        *p++ = '\0';            /* points at last ':', '::port' is special
+                                 * [see below] */
+    else
+        p = h, h = NULL;
+
+# ifdef EAI_FAMILY
+    do {
+        static union {
+            void *p;
+            int (WSAAPI *f) (const char *, const char *,
+                             const struct addrinfo *, struct addrinfo **);
+        } p_getaddrinfo = {
+            NULL
+        };
+        static union {
+            void *p;
+            void (WSAAPI *f) (struct addrinfo *);
+        } p_freeaddrinfo = {
+            NULL
+        };
+        struct addrinfo *res, hint;
+
+        if (p_getaddrinfo.p == NULL) {
+            if ((p_getaddrinfo.p = DSO_global_lookup("getaddrinfo")) == NULL
+                || (p_freeaddrinfo.p =
+                    DSO_global_lookup("freeaddrinfo")) == NULL)
+                p_getaddrinfo.p = (void *)-1;
+        }
+        if (p_getaddrinfo.p == (void *)-1)
+            break;
 
-    if (BIO_lookup(h, p, BIO_LOOKUP_SERVER, AF_UNSPEC, SOCK_STREAM, &res) != 0)
-        goto err;
+        /*
+         * '::port' enforces IPv6 wildcard listener. Some OSes, e.g. Solaris,
+         * default to IPv6 without any hint. Also note that commonly IPv6
+         * wildchard socket can service IPv4 connections just as well...
+         */
+        memset(&hint, 0, sizeof(hint));
+        hint.ai_flags = AI_PASSIVE;
+        if (h) {
+            if (strchr(h, ':')) {
+                if (h[1] == '\0')
+                    h = NULL;
+#  if OPENSSL_USE_IPV6
+                hint.ai_family = AF_INET6;
+#  else
+                h = NULL;
+#  endif
+            } else if (h[0] == '*' && h[1] == '\0') {
+                hint.ai_family = AF_INET;
+                h = NULL;
+            }
+        }
 
-    if ((s = BIO_socket(BIO_ADDRINFO_family(res), BIO_ADDRINFO_socktype(res),
-                        BIO_ADDRINFO_protocol(res), 0)) == INVALID_SOCKET) {
-        s = INVALID_SOCKET;
+        if ((*p_getaddrinfo.f) (h, p, &hint, &res))
+            break;
+
+        addrlen = res->ai_addrlen <= sizeof(server) ?
+            res->ai_addrlen : sizeof(server);
+        memcpy(&server, res->ai_addr, addrlen);
+
+        (*p_freeaddrinfo.f) (res);
+        goto again;
+    } while (0);
+# endif
+
+    if (!BIO_get_port(p, &port))
         goto err;
+
+    memset((char *)&server, 0, sizeof(server));
+    server.sa_in.sin_family = AF_INET;
+    server.sa_in.sin_port = htons(port);
+    addrlen = sizeof(server.sa_in);
+
+    if (h == NULL || strcmp(h, "*") == 0)
+        server.sa_in.sin_addr.s_addr = INADDR_ANY;
+    else {
+        if (!BIO_get_host_ip(h, &(ip[0])))
+            goto err;
+        l = (unsigned long)
+            ((unsigned long)ip[0] << 24L) |
+            ((unsigned long)ip[1] << 16L) |
+            ((unsigned long)ip[2] << 8L) | ((unsigned long)ip[3]);
+        server.sa_in.sin_addr.s_addr = htonl(l);
     }
 
-    if (!BIO_listen(s, BIO_ADDRINFO_address(res),
-                    bind_mode ? BIO_SOCK_REUSEADDR : 0)) {
-        BIO_closesocket(s);
-        s = INVALID_SOCKET;
+ again:
+    s = socket(server.sa.sa_family, SOCK_STREAM, SOCKET_PROTOCOL);
+    if (s == INVALID_SOCKET) {
+        SYSerr(SYS_F_SOCKET, get_last_socket_error());
+        ERR_add_error_data(3, "port='", host, "'");
+        BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_CREATE_SOCKET);
+        goto err;
     }
+# ifdef SO_REUSEADDR
+    if (bind_mode == BIO_BIND_REUSEADDR) {
+        int i = 1;
 
+        ret = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char *)&i, sizeof(i));
+        bind_mode = BIO_BIND_NORMAL;
+    }
+# endif
+    if (bind(s, &server.sa, addrlen) == -1) {
+# ifdef SO_REUSEADDR
+        err_num = get_last_socket_error();
+        if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) &&
+#  ifdef OPENSSL_SYS_WINDOWS
+            /*
+             * Some versions of Windows define EADDRINUSE to a dummy value.
+             */
+            (err_num == WSAEADDRINUSE))
+#  else
+            (err_num == EADDRINUSE))
+#  endif
+        {
+            client = server;
+            if (h == NULL || strcmp(h, "*") == 0) {
+#  if OPENSSL_USE_IPV6
+                if (client.sa.sa_family == AF_INET6) {
+                    memset(&client.sa_in6.sin6_addr, 0,
+                           sizeof(client.sa_in6.sin6_addr));
+                    client.sa_in6.sin6_addr.s6_addr[15] = 1;
+                } else
+#  endif
+                if (client.sa.sa_family == AF_INET) {
+                    client.sa_in.sin_addr.s_addr = htonl(0x7F000001);
+                } else
+                    goto err;
+            }
+            cs = socket(client.sa.sa_family, SOCK_STREAM, SOCKET_PROTOCOL);
+            if (cs != INVALID_SOCKET) {
+                int ii;
+                ii = connect(cs, &client.sa, addrlen);
+                closesocket(cs);
+                if (ii == INVALID_SOCKET) {
+                    bind_mode = BIO_BIND_REUSEADDR;
+                    closesocket(s);
+                    goto again;
+                }
+                /* else error */
+            }
+            /* else error */
+        }
+# endif
+        SYSerr(SYS_F_BIND, err_num);
+        ERR_add_error_data(3, "port='", host, "'");
+        BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_BIND_SOCKET);
+        goto err;
+    }
+    if (listen(s, MAX_LISTEN) == -1) {
+        SYSerr(SYS_F_BIND, get_last_socket_error());
+        ERR_add_error_data(3, "port='", host, "'");
+        BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET, BIO_R_UNABLE_TO_LISTEN_SOCKET);
+        goto err;
+    }
+    ret = 1;
  err:
-    BIO_ADDRINFO_free(res);
-    OPENSSL_free(h);
-    OPENSSL_free(p);
-
-    return s;
+    if (str != NULL)
+        OPENSSL_free(str);
+    if ((ret == 0) && (s != INVALID_SOCKET)) {
+        closesocket(s);
+        s = INVALID_SOCKET;
+    }
+    return (s);
 }
 
-int BIO_accept(int sock, char **ip_port)
+int BIO_accept(int sock, char **addr)
 {
-    BIO_ADDR res;
-    int ret = -1;
+    int ret = INVALID_SOCKET;
+    unsigned long l;
+    unsigned short port;
+    char *p;
 
-    ret = BIO_accept_ex(sock, &res, 0);
-    if (ret == (int)INVALID_SOCKET) {
-        if (BIO_sock_should_retry(ret)) {
-            ret = -2;
-            goto end;
-        }
+    struct {
+        /*
+         * As for following union. Trouble is that there are platforms
+         * that have socklen_t and there are platforms that don't, on
+         * some platforms socklen_t is int and on some size_t. So what
+         * one can do? One can cook #ifdef spaghetti, which is nothing
+         * but masochistic. Or one can do union between int and size_t.
+         * One naturally does it primarily for 64-bit platforms where
+         * sizeof(int) != sizeof(size_t). But would it work? Note that
+         * if size_t member is initialized to 0, then later int member
+         * assignment naturally does the job on little-endian platforms
+         * regardless accept's expectations! What about big-endians?
+         * If accept expects int*, then it works, and if size_t*, then
+         * length value would appear as unreasonably large. But this
+         * won't prevent it from filling in the address structure. The
+         * trouble of course would be if accept returns more data than
+         * actual buffer can accomodate and overwrite stack... That's
+         * where early OPENSSL_assert comes into picture. Besides, the
+         * only 64-bit big-endian platform found so far that expects
+         * size_t* is HP-UX, where stack grows towards higher address.
+         * <appro>
+         */
+        union {
+            size_t s;
+            int i;
+        } len;
+        union {
+            struct sockaddr sa;
+            struct sockaddr_in sa_in;
+# if OPENSSL_USE_IPV6
+            struct sockaddr_in6 sa_in6;
+# endif
+        } from;
+    } sa;
+
+    sa.len.s = 0;
+    sa.len.i = sizeof(sa.from);
+    memset(&sa.from, 0, sizeof(sa.from));
+    ret = accept(sock, &sa.from.sa, (void *)&sa.len);
+    if (sizeof(sa.len.i) != sizeof(sa.len.s) && sa.len.i == 0) {
+        OPENSSL_assert(sa.len.s <= sizeof(sa.from));
+        sa.len.i = (int)sa.len.s;
+        /* use sa.len.i from this point */
+    }
+    if (ret == INVALID_SOCKET) {
+        if (BIO_sock_should_retry(ret))
+            return -2;
         SYSerr(SYS_F_ACCEPT, get_last_socket_error());
         BIOerr(BIO_F_BIO_ACCEPT, BIO_R_ACCEPT_ERROR);
         goto end;
     }
 
-    if (ip_port != NULL) {
-        char *host = BIO_ADDR_hostname_string(&res, 1);
-        char *port = BIO_ADDR_service_string(&res, 1);
-        if (host != NULL && port != NULL)
-            *ip_port = OPENSSL_zalloc(strlen(host) + strlen(port) + 2);
-        else
-            *ip_port = NULL;
+    if (addr == NULL)
+        goto end;
 
-        if (*ip_port == NULL) {
-            BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE);
-            BIO_closesocket(ret);
-            ret = (int)INVALID_SOCKET;
+# ifdef EAI_FAMILY
+    do {
+        char h[NI_MAXHOST], s[NI_MAXSERV];
+        size_t nl;
+        static union {
+            void *p;
+            int (WSAAPI *f) (const struct sockaddr *, size_t /* socklen_t */ ,
+                             char *, size_t, char *, size_t, int);
+        } p_getnameinfo = {
+            NULL
+        };
+        /*
+         * 2nd argument to getnameinfo is specified to be socklen_t.
+         * Unfortunately there is a number of environments where socklen_t is
+         * not defined. As it's passed by value, it's safe to pass it as
+         * size_t... <appro>
+         */
+
+        if (p_getnameinfo.p == NULL) {
+            if ((p_getnameinfo.p = DSO_global_lookup("getnameinfo")) == NULL)
+                p_getnameinfo.p = (void *)-1;
+        }
+        if (p_getnameinfo.p == (void *)-1)
+            break;
+
+        if ((*p_getnameinfo.f) (&sa.from.sa, sa.len.i, h, sizeof(h), s,
+                                sizeof(s), NI_NUMERICHOST | NI_NUMERICSERV))
+            break;
+        nl = strlen(h) + strlen(s) + 2;
+        p = *addr;
+        if (p) {
+            *p = '\0';
+            p = OPENSSL_realloc(p, nl);
         } else {
-            strcpy(*ip_port, host);
-            strcat(*ip_port, ":");
-            strcat(*ip_port, port);
+            p = OPENSSL_malloc(nl);
+        }
+        if (p == NULL) {
+            BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE);
+            goto end;
+        }
+        *addr = p;
+        BIO_snprintf(*addr, nl, "%s:%s", h, s);
+        goto end;
+    } while (0);
+# endif
+    if (sa.from.sa.sa_family != AF_INET)
+        goto end;
+    l = ntohl(sa.from.sa_in.sin_addr.s_addr);
+    port = ntohs(sa.from.sa_in.sin_port);
+    if (*addr == NULL) {
+        if ((p = OPENSSL_malloc(24)) == NULL) {
+            BIOerr(BIO_F_BIO_ACCEPT, ERR_R_MALLOC_FAILURE);
+            goto end;
         }
-        OPENSSL_free(host);
-        OPENSSL_free(port);
+        *addr = p;
     }
-
+    BIO_snprintf(*addr, 24, "%d.%d.%d.%d:%d",
+                 (unsigned char)(l >> 24L) & 0xff,
+                 (unsigned char)(l >> 16L) & 0xff,
+                 (unsigned char)(l >> 8L) & 0xff,
+                 (unsigned char)(l) & 0xff, port);
  end:
-    return ret;
+    return (ret);
 }
-# endif
 
 int BIO_set_tcp_ndelay(int s, int on)
 {
@@ -312,70 +955,8 @@ int BIO_socket_nbio(int s, int mode)
 
     l = mode;
 # ifdef FIONBIO
-    l = mode;
-
     ret = BIO_socket_ioctl(s, FIONBIO, &l);
-# elif defined(F_GETFL) && defined(F_SETFL) && (defined(O_NONBLOCK) || defined(FNDELAY))
-    /* make sure this call always pushes an error level; BIO_socket_ioctl() does so, so we do too. */
-
-    l = fcntl(s, F_GETFL, 0);
-    if (l == -1) {
-        SYSerr(SYS_F_FCNTL, get_last_rtl_error());
-        ret = -1;
-    } else {
-#  if defined(O_NONBLOCK)
-        l &= ~O_NONBLOCK;
-#  else
-        l &= ~FNDELAY; /* BSD4.x */
-#  endif
-        if (mode) {
-#  if defined(O_NONBLOCK)
-            l |= O_NONBLOCK;
-#  else
-            l |= FNDELAY; /* BSD4.x */
-#  endif
-        }
-        ret = fcntl(s, F_SETFL, l);
-
-        if (ret < 0) {
-            SYSerr(SYS_F_FCNTL, get_last_rtl_error());
-        }
-    }
-# else
-    /* make sure this call always pushes an error level; BIO_socket_ioctl() does so, so we do too. */
-    BIOerr(BIO_F_BIO_SOCKET_NBIO, ERR_R_PASSED_INVALID_ARGUMENT);
 # endif
-
     return (ret == 0);
 }
-
-int BIO_sock_info(int sock,
-                  enum BIO_sock_info_type type, union BIO_sock_info_u *info)
-{
-    switch (type) {
-    case BIO_SOCK_INFO_ADDRESS:
-        {
-            socklen_t addr_len;
-            int ret = 0;
-            addr_len = sizeof(*info->addr);
-            ret = getsockname(sock, BIO_ADDR_sockaddr_noconst(info->addr),
-                              &addr_len);
-            if (ret == -1) {
-                SYSerr(SYS_F_GETSOCKNAME, get_last_socket_error());
-                BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_GETSOCKNAME_ERROR);
-                return 0;
-            }
-            if ((size_t)addr_len > sizeof(*info->addr)) {
-                BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_GETSOCKNAME_TRUNCATED_ADDRESS);
-                return 0;
-            }
-        }
-        break;
-    default:
-        BIOerr(BIO_F_BIO_SOCK_INFO, BIO_R_UNKNOWN_INFO_TYPE);
-        return 0;
-    }
-    return 1;
-}
-
 #endif