1 files changed, 786 insertions, 0 deletions

diff --git a/src/lib/libcrypto/bio/b_sock.c b/src/lib/libcrypto/bio/b_sock.c
new file mode 100644
index 0000000000..ead477d8a2
--- /dev/null
+++ b/src/lib/libcrypto/bio/b_sock.c
@@ -0,0 +1,786 @@
+/* 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.
+ * 
+ * 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>
+#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
+
+#ifdef OPENSSL_SYS_WIN16
+#define SOCKET_PROTOCOL 0 /* more microsoft stupidity */
+#else
+#define SOCKET_PROTOCOL IPPROTO_TCP
+#endif
+
+#ifdef SO_MAXCONN
+#define MAX_LISTEN  SO_MAXCONN
+#elif defined(SOMAXCONN)
+#define MAX_LISTEN  SOMAXCONN
+#else
+#define MAX_LISTEN  32
+#endif
+
+#if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK))
+static int wsa_init_done=0;
+#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)
+        {
+        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 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;
+                }
+
+        /* 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;
+
+ 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)
+        {
+        int i;
+        struct servent *s;
+
+        if (str == NULL)
+                {
+                BIOerr(BIO_F_BIO_GET_PORT,BIO_R_NO_PORT_DEFINED);
+                return(0);
+                }
+        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);
+                                }
+                        }
+                }
+        return(1);
+        }
+
+int BIO_sock_error(int sock)
+        {
+        int j,i;
+        int size;
+                 
+        size=sizeof(int);
+        /* 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,(void *)&size);
+        if (i < 0)
+                return(1);
+        else
+                return(j);
+        }
+
+#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 */
+#if (defined(NETWARE_BSDSOCK) && !defined(__NOVELL_LIBC__))
+        return gethostbyname((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)
+        {
+#ifdef OPENSSL_SYS_WINDOWS
+        static struct WSAData wsa_state;
+
+        if (!wsa_init_done)
+                {
+                int err;
+          
+                wsa_init_done=1;
+                memset(&wsa_state,0,sizeof(wsa_state));
+                if (WSAStartup(0x0101,&wsa_state)!=0)
+                        {
+                        err=WSAGetLastError();
+                        SYSerr(SYS_F_WSASTARTUP,err);
+                        BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP);
+                        return(-1);
+                        }
+                }
+#endif /* OPENSSL_SYS_WINDOWS */
+#ifdef WATT32
+        extern int _watt_do_exit;
+        _watt_do_exit = 0;    /* don't make sock_init() call exit() */
+        if (sock_init())
+                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(void)
+        {
+#ifdef OPENSSL_SYS_WINDOWS
+        if (wsa_init_done)
+                {
+                wsa_init_done=0;
+#ifndef OPENSSL_SYS_WINCE
+                WSACancelBlockingCall();        /* Winsock 1.1 specific */
+#endif
+                WSACleanup();
+                }
+#elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
+   if (wsa_init_done)
+        {
+        wsa_init_done=0;
+        WSACleanup();
+                }
+#endif
+        }
+
+#if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000
+
+int BIO_socket_ioctl(int fd, long type, void *arg)
+        {
+        int i;
+
+#ifdef __DJGPP__
+        i=ioctlsocket(fd,type,(char *)arg);
+#else
+        i=ioctlsocket(fd,type,arg);
+#endif /* __DJGPP__ */
+        if (i < 0)
+                SYSerr(SYS_F_IOCTLSOCKET,get_last_socket_error());
+        return(i);
+        }
+#endif /* __VMS_VER */
+
+/* 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])
+        {
+        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);
+        }
+
+int BIO_get_accept_socket(char *host, int bind_mode)
+        {
+        int ret=0;
+        struct sockaddr_in server,client;
+        int s=INVALID_SOCKET,cs;
+        unsigned char ip[4];
+        unsigned short port;
+        char *str=NULL,*e;
+        const char *h,*p;
+        unsigned long l;
+        int err_num;
+
+        if (BIO_sock_init() != 1) 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[1]);
+                        *e='\0';
+                        }
+                else if (*e == '/')
+                        {
+                        *e='\0';
+                        break;
+                        }
+                }
+
+        if (p == NULL)
+                {
+                p=h;
+                h="*";
+                }
+
+        if (!BIO_get_port(p,&port)) goto err;
+
+        memset((char *)&server,0,sizeof(server));
+        server.sin_family=AF_INET;
+        server.sin_port=htons(port);
+
+        if (strcmp(h,"*") == 0)
+                server.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.sin_addr.s_addr=htonl(l);
+                }
+
+again:
+        s=socket(AF_INET,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,(struct sockaddr *)&server,sizeof(server)) == -1)
+                {
+#ifdef SO_REUSEADDR
+                err_num=get_last_socket_error();
+                if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) &&
+                        (err_num == EADDRINUSE))
+                        {
+                        memcpy((char *)&client,(char *)&server,sizeof(server));
+                        if (strcmp(h,"*") == 0)
+                                client.sin_addr.s_addr=htonl(0x7F000001);
+                        cs=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
+                        if (cs != INVALID_SOCKET)
+                                {
+                                int ii;
+                                ii=connect(cs,(struct sockaddr *)&client,
+                                        sizeof(client));
+                                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:
+        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 **addr)
+        {
+        int ret=INVALID_SOCKET;
+        static struct sockaddr_in from;
+        unsigned long l;
+        unsigned short port;
+        int len;
+        char *p;
+
+        memset((char *)&from,0,sizeof(from));
+        len=sizeof(from);
+        /* Note: under VMS with SOCKETSHR the fourth parameter is currently
+         * of type (int *) 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 (int *) or (void *).
+         */
+        ret=accept(sock,(struct sockaddr *)&from,(void *)&len);
+        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 (addr == NULL) goto end;
+
+        l=ntohl(from.sin_addr.s_addr);
+        port=ntohs(from.sin_port);
+        if (*addr == NULL)
+                {
+                if ((p=OPENSSL_malloc(24)) == NULL)
+                        {
+                        BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE);
+                        goto end;
+                        }
+                *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);
+        }
+
+int BIO_set_tcp_ndelay(int s, int on)
+        {
+        int ret=0;
+#if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP))
+        int opt;
+
+#ifdef SOL_TCP
+        opt=SOL_TCP;
+#else
+#ifdef IPPROTO_TCP
+        opt=IPPROTO_TCP;
+#endif
+#endif
+        
+        ret=setsockopt(s,opt,TCP_NODELAY,(char *)&on,sizeof(on));
+#endif
+        return(ret == 0);
+        }
+#endif
+
+int BIO_socket_nbio(int s, int mode)
+        {
+        int ret= -1;
+        int l;
+
+        l=mode;
+#ifdef FIONBIO
+        ret=BIO_socket_ioctl(s,FIONBIO,&l);
+#endif
+        return(ret == 0);
+        }