sl@0: /* crypto/bio/b_sock.c */
sl@0: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
sl@0:  * All rights reserved.
sl@0:  *
sl@0:  * This package is an SSL implementation written
sl@0:  * by Eric Young (eay@cryptsoft.com).
sl@0:  * The implementation was written so as to conform with Netscapes SSL.
sl@0:  * 
sl@0:  * This library is free for commercial and non-commercial use as long as
sl@0:  * the following conditions are aheared to.  The following conditions
sl@0:  * apply to all code found in this distribution, be it the RC4, RSA,
sl@0:  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
sl@0:  * included with this distribution is covered by the same copyright terms
sl@0:  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
sl@0:  * 
sl@0:  * Copyright remains Eric Young's, and as such any Copyright notices in
sl@0:  * the code are not to be removed.
sl@0:  * If this package is used in a product, Eric Young should be given attribution
sl@0:  * as the author of the parts of the library used.
sl@0:  * This can be in the form of a textual message at program startup or
sl@0:  * in documentation (online or textual) provided with the package.
sl@0:  * 
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  * 1. Redistributions of source code must retain the copyright
sl@0:  *    notice, this list of conditions and the following disclaimer.
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in the
sl@0:  *    documentation and/or other materials provided with the distribution.
sl@0:  * 3. All advertising materials mentioning features or use of this software
sl@0:  *    must display the following acknowledgement:
sl@0:  *    "This product includes cryptographic software written by
sl@0:  *     Eric Young (eay@cryptsoft.com)"
sl@0:  *    The word 'cryptographic' can be left out if the rouines from the library
sl@0:  *    being used are not cryptographic related :-).
sl@0:  * 4. If you include any Windows specific code (or a derivative thereof) from 
sl@0:  *    the apps directory (application code) you must include an acknowledgement:
sl@0:  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
sl@0:  * 
sl@0:  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
sl@0:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
sl@0:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
sl@0:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
sl@0:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
sl@0:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
sl@0:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
sl@0:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
sl@0:  * SUCH DAMAGE.
sl@0:  * 
sl@0:  * The licence and distribution terms for any publically available version or
sl@0:  * derivative of this code cannot be changed.  i.e. this code cannot simply be
sl@0:  * copied and put under another distribution licence
sl@0:  * [including the GNU Public Licence.]
sl@0:  */
sl@0: 
sl@0: /*
sl@0:  © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.
sl@0:  */
sl@0: 
sl@0: 
sl@0: #include <stdio.h>
sl@0: #include <stdlib.h>
sl@0: #include <errno.h>
sl@0: #define USE_SOCKETS
sl@0: #include "cryptlib.h"
sl@0: #include <openssl/bio.h>
sl@0: #if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_BSDSOCK)
sl@0: #include "netdb.h"
sl@0: #endif
sl@0: #if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))
sl@0: #include "libcrypto_wsd_macros.h"
sl@0: #include "libcrypto_wsd.h"
sl@0: #endif
sl@0: 
sl@0: 
sl@0: #ifndef OPENSSL_NO_SOCK
sl@0: 
sl@0: #ifdef OPENSSL_SYS_WIN16
sl@0: #define SOCKET_PROTOCOL 0 /* more microsoft stupidity */
sl@0: #else
sl@0: #define SOCKET_PROTOCOL IPPROTO_TCP
sl@0: #endif
sl@0: 
sl@0: #ifdef SO_MAXCONN
sl@0: #define MAX_LISTEN  SO_MAXCONN
sl@0: #elif defined(SOMAXCONN)
sl@0: #define MAX_LISTEN  SOMAXCONN
sl@0: #else
sl@0: #define MAX_LISTEN  32
sl@0: #endif
sl@0: 
sl@0: #if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK))
sl@0: static int wsa_init_done=0;
sl@0: #endif
sl@0: 
sl@0: #if 0
sl@0: static unsigned long BIO_ghbn_hits=0L;
sl@0: static unsigned long BIO_ghbn_miss=0L;
sl@0: 
sl@0: #define GHBN_NUM	4
sl@0: static struct ghbn_cache_st
sl@0: 	{
sl@0: 	char name[129];
sl@0: 	struct hostent *ent;
sl@0: 	unsigned long order;
sl@0: 	} ghbn_cache[GHBN_NUM];
sl@0: #endif
sl@0: 
sl@0: static int get_ip(const char *str,unsigned char *ip);
sl@0: #if 0
sl@0: static void ghbn_free(struct hostent *a);
sl@0: static struct hostent *ghbn_dup(struct hostent *a);
sl@0: #endif
sl@0: EXPORT_C int BIO_get_host_ip(const char *str, unsigned char *ip)
sl@0: 	{
sl@0: 	int i;
sl@0: 	int err = 1;
sl@0: 	int locked = 0;
sl@0: 	struct hostent *he;
sl@0: 
sl@0: 	i=get_ip(str,ip);
sl@0: 	if (i < 0)
sl@0: 		{
sl@0: 		BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_INVALID_IP_ADDRESS);
sl@0: 		goto err;
sl@0: 		}
sl@0: 
sl@0: 	/* At this point, we have something that is most probably correct
sl@0: 	   in some way, so let's init the socket. */
sl@0: 	if (BIO_sock_init() != 1)
sl@0: 		return 0; /* don't generate another error code here */
sl@0: 
sl@0: 	/* If the string actually contained an IP address, we need not do
sl@0: 	   anything more */
sl@0: 	if (i > 0) return(1);
sl@0: 
sl@0: 	/* do a gethostbyname */
sl@0: 	CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME);
sl@0: 	locked = 1;
sl@0: 	he=BIO_gethostbyname(str);
sl@0: 	if (he == NULL)
sl@0: 		{
sl@0: 		BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_BAD_HOSTNAME_LOOKUP);
sl@0: 		goto err;
sl@0: 		}
sl@0: 
sl@0: 	/* cast to short because of win16 winsock definition */
sl@0: 	if ((short)he->h_addrtype != AF_INET)
sl@0: 		{
sl@0: 		BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET);
sl@0: 		goto err;
sl@0: 		}
sl@0: 	for (i=0; i<4; i++)
sl@0: 		ip[i]=he->h_addr_list[0][i];
sl@0: 	err = 0;
sl@0: 
sl@0:  err:
sl@0: 	if (locked)
sl@0: 		CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME);
sl@0: 	if (err)
sl@0: 		{
sl@0: 		ERR_add_error_data(2,"host=",str);
sl@0: 		return 0;
sl@0: 		}
sl@0: 	else
sl@0: 		return 1;
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int BIO_get_port(const char *str, unsigned short *port_ptr)
sl@0: 	{
sl@0: 	int i;
sl@0: 	struct servent *s;
sl@0: 
sl@0: 	if (str == NULL)
sl@0: 		{
sl@0: 		BIOerr(BIO_F_BIO_GET_PORT,BIO_R_NO_PORT_DEFINED);
sl@0: 		return(0);
sl@0: 		}
sl@0: 	i=atoi(str);
sl@0: 	if (i != 0)
sl@0: 		*port_ptr=(unsigned short)i;
sl@0: 	else
sl@0: 		{
sl@0: 		CRYPTO_w_lock(CRYPTO_LOCK_GETSERVBYNAME);
sl@0: 		/* Note: under VMS with SOCKETSHR, it seems like the first
sl@0: 		 * parameter is 'char *', instead of 'const char *'
sl@0: 		 */
sl@0:  		s=getservbyname(
sl@0: #ifndef CONST_STRICT
sl@0: 		    (char *)
sl@0: #endif
sl@0: 		    str,"tcp");
sl@0: 		if(s != NULL)
sl@0: 			*port_ptr=ntohs((unsigned short)s->s_port);
sl@0: 		CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME);
sl@0: 		if(s == NULL)
sl@0: 			{
sl@0: 			if (strcmp(str,"http") == 0)
sl@0: 				*port_ptr=80;
sl@0: 			else if (strcmp(str,"telnet") == 0)
sl@0: 				*port_ptr=23;
sl@0: 			else if (strcmp(str,"socks") == 0)
sl@0: 				*port_ptr=1080;
sl@0: 			else if (strcmp(str,"https") == 0)
sl@0: 				*port_ptr=443;
sl@0: 			else if (strcmp(str,"ssl") == 0)
sl@0: 				*port_ptr=443;
sl@0: 			else if (strcmp(str,"ftp") == 0)
sl@0: 				*port_ptr=21;
sl@0: 			else if (strcmp(str,"gopher") == 0)
sl@0: 				*port_ptr=70;
sl@0: #if 0
sl@0: 			else if (strcmp(str,"wais") == 0)
sl@0: 				*port_ptr=21;
sl@0: #endif
sl@0: 			else
sl@0: 				{
sl@0: 				SYSerr(SYS_F_GETSERVBYNAME,get_last_socket_error());
sl@0: 				ERR_add_error_data(3,"service='",str,"'");
sl@0: 				return(0);
sl@0: 				}
sl@0: 			}
sl@0: 		}
sl@0: 	return(1);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int BIO_sock_error(int sock)
sl@0: 	{
sl@0: 	int j,i;
sl@0: 	int size;
sl@0: 		 
sl@0: 	size=sizeof(int);
sl@0: 	/* Note: under Windows the third parameter is of type (char *)
sl@0: 	 * whereas under other systems it is (void *) if you don't have
sl@0: 	 * a cast it will choke the compiler: if you do have a cast then
sl@0: 	 * you can either go for (char *) or (void *).
sl@0: 	 */
sl@0: 	i=getsockopt(sock,SOL_SOCKET,SO_ERROR,(void *)&j,(void *)&size);
sl@0: 	if (i < 0)
sl@0: 		return(1);
sl@0: 	else
sl@0: 		return(j);
sl@0: 	}
sl@0: 
sl@0: #if 0
sl@0: long BIO_ghbn_ctrl(int cmd, int iarg, char *parg)
sl@0: 	{
sl@0: 	int i;
sl@0: 	char **p;
sl@0: 
sl@0: 	switch (cmd)
sl@0: 		{
sl@0: 	case BIO_GHBN_CTRL_HITS:
sl@0: 		return(BIO_ghbn_hits);
sl@0: 		/* break; */
sl@0: 	case BIO_GHBN_CTRL_MISSES:
sl@0: 		return(BIO_ghbn_miss);
sl@0: 		/* break; */
sl@0: 	case BIO_GHBN_CTRL_CACHE_SIZE:
sl@0: 		return(GHBN_NUM);
sl@0: 		/* break; */
sl@0: 	case BIO_GHBN_CTRL_GET_ENTRY:
sl@0: 		if ((iarg >= 0) && (iarg <GHBN_NUM) &&
sl@0: 			(ghbn_cache[iarg].order > 0))
sl@0: 			{
sl@0: 			p=(char **)parg;
sl@0: 			if (p == NULL) return(0);
sl@0: 			*p=ghbn_cache[iarg].name;
sl@0: 			ghbn_cache[iarg].name[128]='\0';
sl@0: 			return(1);
sl@0: 			}
sl@0: 		return(0);
sl@0: 		/* break; */
sl@0: 	case BIO_GHBN_CTRL_FLUSH:
sl@0: 		for (i=0; i<GHBN_NUM; i++)
sl@0: 			ghbn_cache[i].order=0;
sl@0: 		break;
sl@0: 	default:
sl@0: 		return(0);
sl@0: 		}
sl@0: 	return(1);
sl@0: 	}
sl@0: #endif
sl@0: 
sl@0: #if 0
sl@0: static struct hostent *ghbn_dup(struct hostent *a)
sl@0: 	{
sl@0: 	struct hostent *ret;
sl@0: 	int i,j;
sl@0: 
sl@0: 	MemCheck_off();
sl@0: 	ret=(struct hostent *)OPENSSL_malloc(sizeof(struct hostent));
sl@0: 	if (ret == NULL) return(NULL);
sl@0: 	memset(ret,0,sizeof(struct hostent));
sl@0: 
sl@0: 	for (i=0; a->h_aliases[i] != NULL; i++)
sl@0: 		;
sl@0: 	i++;
sl@0: 	ret->h_aliases = (char **)OPENSSL_malloc(i*sizeof(char *));
sl@0: 	if (ret->h_aliases == NULL)
sl@0: 		goto err;
sl@0: 	memset(ret->h_aliases, 0, i*sizeof(char *));
sl@0: 
sl@0: 	for (i=0; a->h_addr_list[i] != NULL; i++)
sl@0: 		;
sl@0: 	i++;
sl@0: 	ret->h_addr_list=(char **)OPENSSL_malloc(i*sizeof(char *));
sl@0: 	if (ret->h_addr_list == NULL)
sl@0: 		goto err;
sl@0: 	memset(ret->h_addr_list, 0, i*sizeof(char *));
sl@0: 
sl@0: 	j=strlen(a->h_name)+1;
sl@0: 	if ((ret->h_name=OPENSSL_malloc(j)) == NULL) goto err;
sl@0: 	memcpy((char *)ret->h_name,a->h_name,j);
sl@0: 	for (i=0; a->h_aliases[i] != NULL; i++)
sl@0: 		{
sl@0: 		j=strlen(a->h_aliases[i])+1;
sl@0: 		if ((ret->h_aliases[i]=OPENSSL_malloc(j)) == NULL) goto err;
sl@0: 		memcpy(ret->h_aliases[i],a->h_aliases[i],j);
sl@0: 		}
sl@0: 	ret->h_length=a->h_length;
sl@0: 	ret->h_addrtype=a->h_addrtype;
sl@0: 	for (i=0; a->h_addr_list[i] != NULL; i++)
sl@0: 		{
sl@0: 		if ((ret->h_addr_list[i]=OPENSSL_malloc(a->h_length)) == NULL)
sl@0: 			goto err;
sl@0: 		memcpy(ret->h_addr_list[i],a->h_addr_list[i],a->h_length);
sl@0: 		}
sl@0: 	if (0)
sl@0: 		{
sl@0: err:	
sl@0: 		if (ret != NULL)
sl@0: 			ghbn_free(ret);
sl@0: 		ret=NULL;
sl@0: 		}
sl@0: 	MemCheck_on();
sl@0: 	return(ret);
sl@0: 	}
sl@0: 
sl@0: static void ghbn_free(struct hostent *a)
sl@0: 	{
sl@0: 	int i;
sl@0: 
sl@0: 	if(a == NULL)
sl@0: 	    return;
sl@0: 
sl@0: 	if (a->h_aliases != NULL)
sl@0: 		{
sl@0: 		for (i=0; a->h_aliases[i] != NULL; i++)
sl@0: 			OPENSSL_free(a->h_aliases[i]);
sl@0: 		OPENSSL_free(a->h_aliases);
sl@0: 		}
sl@0: 	if (a->h_addr_list != NULL)
sl@0: 		{
sl@0: 		for (i=0; a->h_addr_list[i] != NULL; i++)
sl@0: 			OPENSSL_free(a->h_addr_list[i]);
sl@0: 		OPENSSL_free(a->h_addr_list);
sl@0: 		}
sl@0: 	if (a->h_name != NULL) OPENSSL_free(a->h_name);
sl@0: 	OPENSSL_free(a);
sl@0: 	}
sl@0: 
sl@0: #endif
sl@0: 
sl@0: EXPORT_C struct hostent *BIO_gethostbyname(const char *name)
sl@0: 	{
sl@0: #if 1
sl@0: 	/* Caching gethostbyname() results forever is wrong,
sl@0: 	 * so we have to let the true gethostbyname() worry about this */
sl@0: 	return gethostbyname(name);
sl@0: #else
sl@0: 	struct hostent *ret;
sl@0: 	int i,lowi=0,j;
sl@0: 	unsigned long low= (unsigned long)-1;
sl@0: 
sl@0: 
sl@0: #  if 0
sl@0: 	/* It doesn't make sense to use locking here: The function interface
sl@0: 	 * is not thread-safe, because threads can never be sure when
sl@0: 	 * some other thread destroys the data they were given a pointer to.
sl@0: 	 */
sl@0: 	CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME);
sl@0: #  endif
sl@0: 	j=strlen(name);
sl@0: 	if (j < 128)
sl@0: 		{
sl@0: 		for (i=0; i<GHBN_NUM; i++)
sl@0: 			{
sl@0: 			if (low > ghbn_cache[i].order)
sl@0: 				{
sl@0: 				low=ghbn_cache[i].order;
sl@0: 				lowi=i;
sl@0: 				}
sl@0: 			if (ghbn_cache[i].order > 0)
sl@0: 				{
sl@0: 				if (strncmp(name,ghbn_cache[i].name,128) == 0)
sl@0: 					break;
sl@0: 				}
sl@0: 			}
sl@0: 		}
sl@0: 	else
sl@0: 		i=GHBN_NUM;
sl@0: 
sl@0: 	if (i == GHBN_NUM) /* no hit*/
sl@0: 		{
sl@0: 		BIO_ghbn_miss++;
sl@0: 		/* Note: under VMS with SOCKETSHR, it seems like the first
sl@0: 		 * parameter is 'char *', instead of 'const char *'
sl@0: 		 */
sl@0: 		ret=gethostbyname(
sl@0: #  ifndef CONST_STRICT
sl@0: 		    (char *)
sl@0: #  endif
sl@0: 		    name);
sl@0: 
sl@0: 		if (ret == NULL)
sl@0: 			goto end;
sl@0: 		if (j > 128) /* too big to cache */
sl@0: 			{
sl@0: #  if 0
sl@0: 			/* If we were trying to make this function thread-safe (which
sl@0: 			 * is bound to fail), we'd have to give up in this case
sl@0: 			 * (or allocate more memory). */
sl@0: 			ret = NULL;
sl@0: #  endif
sl@0: 			goto end;
sl@0: 			}
sl@0: 
sl@0: 		/* else add to cache */
sl@0: 		if (ghbn_cache[lowi].ent != NULL)
sl@0: 			ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */
sl@0: 		ghbn_cache[lowi].name[0] = '\0';
sl@0: 
sl@0: 		if((ret=ghbn_cache[lowi].ent=ghbn_dup(ret)) == NULL)
sl@0: 			{
sl@0: 			BIOerr(BIO_F_BIO_GETHOSTBYNAME,ERR_R_MALLOC_FAILURE);
sl@0: 			goto end;
sl@0: 			}
sl@0: 		strncpy(ghbn_cache[lowi].name,name,128);
sl@0: 		ghbn_cache[lowi].order=BIO_ghbn_miss+BIO_ghbn_hits;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		BIO_ghbn_hits++;
sl@0: 		ret= ghbn_cache[i].ent;
sl@0: 		ghbn_cache[i].order=BIO_ghbn_miss+BIO_ghbn_hits;
sl@0: 		}
sl@0: end:
sl@0: #  if 0
sl@0: 	CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME);
sl@0: #  endif
sl@0: 	return(ret);
sl@0: #endif
sl@0: 	}
sl@0: 
sl@0: 
sl@0: EXPORT_C int BIO_sock_init(void)
sl@0: 	{
sl@0: #ifdef OPENSSL_SYS_WINDOWS
sl@0: 	static struct WSAData wsa_state;
sl@0: 
sl@0: 	if (!wsa_init_done)
sl@0: 		{
sl@0: 		int err;
sl@0: 	  
sl@0: 		wsa_init_done=1;
sl@0: 		memset(&wsa_state,0,sizeof(wsa_state));
sl@0: 		if (WSAStartup(0x0101,&wsa_state)!=0)
sl@0: 			{
sl@0: 			err=WSAGetLastError();
sl@0: 			SYSerr(SYS_F_WSASTARTUP,err);
sl@0: 			BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP);
sl@0: 			return(-1);
sl@0: 			}
sl@0: 		}
sl@0: #endif /* OPENSSL_SYS_WINDOWS */
sl@0: #ifdef WATT32
sl@0: 	extern int _watt_do_exit;
sl@0: 	_watt_do_exit = 0;    /* don't make sock_init() call exit() */
sl@0: 	if (sock_init())
sl@0: 		return (-1);
sl@0: #endif
sl@0: 
sl@0: #if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
sl@0:     WORD wVerReq;
sl@0:     WSADATA wsaData;
sl@0:     int err;
sl@0: 
sl@0:     if (!wsa_init_done)
sl@0:     {
sl@0:    
sl@0: 
sl@0:         wsa_init_done=1;
sl@0:         wVerReq = MAKEWORD( 2, 0 );
sl@0:         err = WSAStartup(wVerReq,&wsaData);
sl@0:         if (err != 0)
sl@0:         {
sl@0:             SYSerr(SYS_F_WSASTARTUP,err);
sl@0:             BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP);
sl@0:             return(-1);
sl@0: 			}
sl@0: 		}
sl@0: #endif
sl@0: 
sl@0: 	return(1);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void BIO_sock_cleanup(void)
sl@0: 	{
sl@0: #ifdef OPENSSL_SYS_WINDOWS
sl@0: 	if (wsa_init_done)
sl@0: 		{
sl@0: 		wsa_init_done=0;
sl@0: #ifndef OPENSSL_SYS_WINCE
sl@0: 		WSACancelBlockingCall();
sl@0: #endif
sl@0: 		WSACleanup();
sl@0: 		}
sl@0: #elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
sl@0:    if (wsa_init_done)
sl@0:         {
sl@0:         wsa_init_done=0;
sl@0:         WSACleanup();
sl@0: 		}
sl@0: #endif
sl@0: 	}
sl@0: 
sl@0: #if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000
sl@0: 
sl@0: EXPORT_C int BIO_socket_ioctl(int fd, long type, void *arg)
sl@0: 	{
sl@0: 	int i;
sl@0: 
sl@0: #ifdef __DJGPP__
sl@0: 	i=ioctlsocket(fd,type,(char *)arg);
sl@0: #else
sl@0: 	i=ioctlsocket(fd,type,arg);
sl@0: #endif /* __DJGPP__ */
sl@0: 	if (i < 0)
sl@0: 		SYSerr(SYS_F_IOCTLSOCKET,get_last_socket_error());
sl@0: 	return(i);
sl@0: 	}
sl@0: #endif /* __VMS_VER */
sl@0: 
sl@0: /* The reason I have implemented this instead of using sscanf is because
sl@0:  * Visual C 1.52c gives an unresolved external when linking a DLL :-( */
sl@0: static int get_ip(const char *str, unsigned char ip[4])
sl@0: 	{
sl@0: 	unsigned int tmp[4];
sl@0: 	int num=0,c,ok=0;
sl@0: 
sl@0: 	tmp[0]=tmp[1]=tmp[2]=tmp[3]=0;
sl@0: 
sl@0: 	for (;;)
sl@0: 		{
sl@0: 		c= *(str++);
sl@0: 		if ((c >= '0') && (c <= '9'))
sl@0: 			{
sl@0: 			ok=1;
sl@0: 			tmp[num]=tmp[num]*10+c-'0';
sl@0: 			if (tmp[num] > 255) return(0);
sl@0: 			}
sl@0: 		else if (c == '.')
sl@0: 			{
sl@0: 			if (!ok) return(-1);
sl@0: 			if (num == 3) return(0);
sl@0: 			num++;
sl@0: 			ok=0;
sl@0: 			}
sl@0: 		else if (c == '\0' && (num == 3) && ok)
sl@0: 			break;
sl@0: 		else
sl@0: 			return(0);
sl@0: 		}
sl@0: 	ip[0]=tmp[0];
sl@0: 	ip[1]=tmp[1];
sl@0: 	ip[2]=tmp[2];
sl@0: 	ip[3]=tmp[3];
sl@0: 	return(1);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int BIO_get_accept_socket(char *host, int bind_mode)
sl@0: 	{
sl@0: 	int ret=0;
sl@0: 	struct sockaddr_in server,client;
sl@0: 	int s=INVALID_SOCKET,cs;
sl@0: 	unsigned char ip[4];
sl@0: 	unsigned short port;
sl@0: 	char *str=NULL,*e;
sl@0: 	const char *h,*p;
sl@0: 	unsigned long l;
sl@0: 	int err_num;
sl@0: 
sl@0: 	if (BIO_sock_init() != 1) return(INVALID_SOCKET);
sl@0: 
sl@0: 	if ((str=BUF_strdup(host)) == NULL) return(INVALID_SOCKET);
sl@0: 
sl@0: 	h=p=NULL;
sl@0: 	h=str;
sl@0: 	for (e=str; *e; e++)
sl@0: 		{
sl@0: 		if (*e == ':')
sl@0: 			{
sl@0: 			p= &(e[1]);
sl@0: 			*e='\0';
sl@0: 			}
sl@0: 		else if (*e == '/')
sl@0: 			{
sl@0: 			*e='\0';
sl@0: 			break;
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	if (p == NULL)
sl@0: 		{
sl@0: 		p=h;
sl@0: 		h="*";
sl@0: 		}
sl@0: 
sl@0: 	if (!BIO_get_port(p,&port)) goto err;
sl@0: 
sl@0: 	memset((char *)&server,0,sizeof(server));
sl@0: 	server.sin_family=AF_INET;
sl@0: 	server.sin_port=htons(port);
sl@0: 
sl@0: 	if (strcmp(h,"*") == 0)
sl@0: 		server.sin_addr.s_addr=INADDR_ANY;
sl@0: 	else
sl@0: 		{
sl@0:                 if (!BIO_get_host_ip(h,&(ip[0]))) goto err;
sl@0: 		l=(unsigned long)
sl@0: 			((unsigned long)ip[0]<<24L)|
sl@0: 			((unsigned long)ip[1]<<16L)|
sl@0: 			((unsigned long)ip[2]<< 8L)|
sl@0: 			((unsigned long)ip[3]);
sl@0: 		server.sin_addr.s_addr=htonl(l);
sl@0: 		}
sl@0: 
sl@0: again:
sl@0: 	s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
sl@0: 	if (s == INVALID_SOCKET)
sl@0: 		{
sl@0: 		SYSerr(SYS_F_SOCKET,get_last_socket_error());
sl@0: 		ERR_add_error_data(3,"port='",host,"'");
sl@0: 		BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_CREATE_SOCKET);
sl@0: 		goto err;
sl@0: 		}
sl@0: 
sl@0: #ifdef SO_REUSEADDR
sl@0: 	if (bind_mode == BIO_BIND_REUSEADDR)
sl@0: 		{
sl@0: 		int i=1;
sl@0: 
sl@0: 		ret=setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&i,sizeof(i));
sl@0: 		bind_mode=BIO_BIND_NORMAL;
sl@0: 		}
sl@0: #endif
sl@0: 	if (bind(s,(struct sockaddr *)&server,sizeof(server)) == -1)
sl@0: 		{
sl@0: #ifdef SO_REUSEADDR
sl@0: 		err_num=get_last_socket_error();
sl@0: 		if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) &&
sl@0: 			(err_num == EADDRINUSE))
sl@0: 			{
sl@0: 			memcpy((char *)&client,(char *)&server,sizeof(server));
sl@0: 			if (strcmp(h,"*") == 0)
sl@0: 				client.sin_addr.s_addr=htonl(0x7F000001);
sl@0: 			cs=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
sl@0: 			if (cs != INVALID_SOCKET)
sl@0: 				{
sl@0: 				int ii;
sl@0: 				ii=connect(cs,(struct sockaddr *)&client,
sl@0: 					sizeof(client));
sl@0: 				closesocket(cs);
sl@0: 				if (ii == INVALID_SOCKET)
sl@0: 					{
sl@0: 					bind_mode=BIO_BIND_REUSEADDR;
sl@0: 					closesocket(s);
sl@0: 					goto again;
sl@0: 					}
sl@0: 				/* else error */
sl@0: 				}
sl@0: 			/* else error */
sl@0: 			}
sl@0: #endif
sl@0: 		SYSerr(SYS_F_BIND,err_num);
sl@0: 		ERR_add_error_data(3,"port='",host,"'");
sl@0: 		BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_BIND_SOCKET);
sl@0: 		goto err;
sl@0: 		}
sl@0: 	if (listen(s,MAX_LISTEN) == -1)
sl@0: 		{
sl@0: 		SYSerr(SYS_F_BIND,get_last_socket_error());
sl@0: 		ERR_add_error_data(3,"port='",host,"'");
sl@0: 		BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_LISTEN_SOCKET);
sl@0: 		goto err;
sl@0: 		}
sl@0: 	ret=1;
sl@0: err:
sl@0: 	if (str != NULL) OPENSSL_free(str);
sl@0: 	if ((ret == 0) && (s != INVALID_SOCKET))
sl@0: 		{
sl@0: 		closesocket(s);
sl@0: 		s= INVALID_SOCKET;
sl@0: 		}
sl@0: 	return(s);
sl@0: 	}
sl@0: #ifdef	EMULATOR
sl@0: GET_STATIC_VAR_FROM_TLS(from,b_sock,struct sockaddr_in)
sl@0: #define from (*GET_WSD_VAR_NAME(from,b_sock, s)())
sl@0: #endif
sl@0: 
sl@0: EXPORT_C int BIO_accept(int sock, char **addr)
sl@0: 	{
sl@0: 	int ret=INVALID_SOCKET;
sl@0: #ifndef	EMULATOR
sl@0: 	static struct sockaddr_in from;
sl@0: #endif
sl@0: 	unsigned long l;
sl@0: 	unsigned short port;
sl@0: 	int len;
sl@0: 	char *p;
sl@0: 
sl@0: 	memset((char *)&from,0,sizeof(from));
sl@0: 	len=sizeof(from);
sl@0: 	/* Note: under VMS with SOCKETSHR the fourth parameter is currently
sl@0: 	 * of type (int *) whereas under other systems it is (void *) if
sl@0: 	 * you don't have a cast it will choke the compiler: if you do
sl@0: 	 * have a cast then you can either go for (int *) or (void *).
sl@0: 	 */
sl@0: 	ret=accept(sock,(struct sockaddr *)&from,(void *)&len);
sl@0: 	if (ret == INVALID_SOCKET)
sl@0: 		{
sl@0: 		if(BIO_sock_should_retry(ret)) return -2;
sl@0: 		SYSerr(SYS_F_ACCEPT,get_last_socket_error());
sl@0: 		BIOerr(BIO_F_BIO_ACCEPT,BIO_R_ACCEPT_ERROR);
sl@0: 		goto end;
sl@0: 		}
sl@0: 
sl@0: 	if (addr == NULL) goto end;
sl@0: 
sl@0: 	l=ntohl(from.sin_addr.s_addr);
sl@0: 	port=ntohs(from.sin_port);
sl@0: 	if (*addr == NULL)
sl@0: 		{
sl@0: 		if ((p=OPENSSL_malloc(24)) == NULL)
sl@0: 			{
sl@0: 			BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE);
sl@0: 			goto end;
sl@0: 			}
sl@0: 		*addr=p;
sl@0: 		}
sl@0: 	BIO_snprintf(*addr,24,"%d.%d.%d.%d:%d",
sl@0: 		     (unsigned char)(l>>24L)&0xff,
sl@0: 		     (unsigned char)(l>>16L)&0xff,
sl@0: 		     (unsigned char)(l>> 8L)&0xff,
sl@0: 		     (unsigned char)(l     )&0xff,
sl@0: 		     port);
sl@0: end:
sl@0: 	return(ret);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C int BIO_set_tcp_ndelay(int s, int on)
sl@0: 	{
sl@0: 	int ret=0;
sl@0: #if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP))
sl@0: 	int opt;
sl@0: 
sl@0: #ifdef SOL_TCP
sl@0: 	opt=SOL_TCP;
sl@0: #else
sl@0: #ifdef IPPROTO_TCP
sl@0: 	opt=IPPROTO_TCP;
sl@0: #endif
sl@0: #endif
sl@0: 	
sl@0: 	ret=setsockopt(s,opt,TCP_NODELAY,(char *)&on,sizeof(on));
sl@0: #endif
sl@0: 	return(ret == 0);
sl@0: 	}
sl@0: #endif
sl@0: 
sl@0: EXPORT_C int BIO_socket_nbio(int s, int mode)
sl@0: 	{
sl@0: 	int ret= -1;
sl@0: 	int l;
sl@0: 
sl@0: 	l=mode;
sl@0: #ifdef FIONBIO
sl@0: 	ret=BIO_socket_ioctl(s,FIONBIO,&l); 
sl@0: #endif
sl@0: 	return(ret == 0);
sl@0: 	}