[thirdparty/openssl.git] / crypto / bio / bss_conn.c

/* crypto/bio/bss_conn.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.]
 */

#ifndef NO_SOCK

#include <stdio.h>
#include <errno.h>
#define USE_SOCKETS
#include "cryptlib.h"
#include <openssl/bio.h>

/*	BIOerr(BIO_F_WSASTARTUP,BIO_R_WSASTARTUP ); */

#ifdef WIN16
#define SOCKET_PROTOCOL 0 /* more microsoft stupidity */
#else
#define SOCKET_PROTOCOL IPPROTO_TCP
#endif

typedef struct bio_connect_st
	{
	int state;

	char *param_hostname;
	char *param_port;
	int nbio;

	unsigned char ip[4];
	unsigned short port;

	struct sockaddr_in them;

	/* int socket; this will be kept in bio->num so that it is
	 * compatable with the bss_sock bio */ 

	/* called when the connection is initially made
	 *  callback(BIO,state,ret);  The callback should return
	 * 'ret'.  state is for compatablity with the ssl info_callback */
	int (*info_callback)();
	} BIO_CONNECT;

#ifndef NOPROTO
static int conn_write(BIO *h,char *buf,int num);
static int conn_read(BIO *h,char *buf,int size);
static int conn_puts(BIO *h,char *str);
static long conn_ctrl(BIO *h,int cmd,long arg1,char *arg2);
static int conn_new(BIO *h);
static int conn_free(BIO *data);
#else
static int conn_write();
static int conn_read();
static int conn_puts();
static long conn_ctrl();
static int conn_new();
static int conn_free();
#endif

#ifndef NOPROTO

static int conn_state(BIO *b, BIO_CONNECT *c);
static void conn_close_socket(BIO *data);
BIO_CONNECT *BIO_CONNECT_new(void );
void BIO_CONNECT_free(BIO_CONNECT *a);

#else

static int conn_state();
static void conn_close_socket();
BIO_CONNECT *BIO_CONNECT_new();
void BIO_CONNECT_free();

#endif

static BIO_METHOD methods_connectp=
	{
	BIO_TYPE_CONNECT,
	"socket connect",
	conn_write,
	conn_read,
	conn_puts,
	NULL, /* connect_gets, */
	conn_ctrl,
	conn_new,
	conn_free,
	};

static int conn_state(BIO *b, BIO_CONNECT *c)
	{
	int ret= -1,i;
	unsigned long l;
	char *p,*q;
	int (*cb)()=NULL;

	if (c->info_callback != NULL)
		cb=c->info_callback;

	for (;;)
		{
		switch (c->state)
			{
		case BIO_CONN_S_BEFORE:
			p=c->param_hostname;
			if (p == NULL)
				{
				BIOerr(BIO_F_CONN_STATE,BIO_R_NO_HOSTNAME_SPECIFIED);
				goto exit_loop;
				}
			for ( ; *p != '\0'; p++)
				{
				if ((*p == ':') || (*p == '/')) break;
				}

			i= *p;
			if ((i == ':') || (i == '/'))
				{

				*(p++)='\0';
				if (i == ':')
					{
					for (q=p; *q; q++)
						if (*q == '/')
							{
							*q='\0';
							break;
							}
					if (c->param_port != NULL)
						Free(c->param_port);
					c->param_port=BUF_strdup(p);
					}
				}

			if (c->param_port == NULL)
				{
				BIOerr(BIO_F_CONN_STATE,BIO_R_NO_PORT_SPECIFIED);
				ERR_add_error_data(2,"host=",c->param_hostname);
				goto exit_loop;
				}
			c->state=BIO_CONN_S_GET_IP;
			break;

		case BIO_CONN_S_GET_IP:
			if (BIO_get_host_ip(c->param_hostname,&(c->ip[0])) <= 0)
				goto exit_loop;
			c->state=BIO_CONN_S_GET_PORT;
			break;

		case BIO_CONN_S_GET_PORT:
			if (c->param_port == NULL)
				{
				abort();
				goto exit_loop;
				}
			else if (BIO_get_port(c->param_port,&c->port) <= 0)
				goto exit_loop;
			c->state=BIO_CONN_S_CREATE_SOCKET;
			break;

		case BIO_CONN_S_CREATE_SOCKET:
			/* now setup address */
			memset((char *)&c->them,0,sizeof(c->them));
			c->them.sin_family=AF_INET;
			c->them.sin_port=htons((unsigned short)c->port);
			l=(unsigned long)
				((unsigned long)c->ip[0]<<24L)|
				((unsigned long)c->ip[1]<<16L)|
				((unsigned long)c->ip[2]<< 8L)|
				((unsigned long)c->ip[3]);
			c->them.sin_addr.s_addr=htonl(l);
			c->state=BIO_CONN_S_CREATE_SOCKET;

			ret=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
			if (ret == INVALID_SOCKET)
				{
				SYSerr(SYS_F_SOCKET,get_last_socket_error());
				ERR_add_error_data(4,"host=",c->param_hostname,
					":",c->param_port);
				BIOerr(BIO_F_CONN_STATE,BIO_R_UNABLE_TO_CREATE_SOCKET);
				goto exit_loop;
				}
			b->num=ret;
			c->state=BIO_CONN_S_NBIO;
			break;

		case BIO_CONN_S_NBIO:
			if (c->nbio)
				{
				if (!BIO_socket_nbio(b->num,1))
					{
					BIOerr(BIO_F_CONN_STATE,BIO_R_ERROR_SETTING_NBIO);
					ERR_add_error_data(4,"host=",
						c->param_hostname,
						":",c->param_port);
					goto exit_loop;
					}
				}
			c->state=BIO_CONN_S_CONNECT;

#ifdef SO_KEEPALIVE
			i=1;
			i=setsockopt(b->num,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i));
			if (i < 0)
				{
				SYSerr(SYS_F_SOCKET,get_last_socket_error());
				ERR_add_error_data(4,"host=",c->param_hostname,
					":",c->param_port);
				BIOerr(BIO_F_CONN_STATE,BIO_R_KEEPALIVE);
				goto exit_loop;
				}
#endif
			break;

		case BIO_CONN_S_CONNECT:
			BIO_clear_retry_flags(b);
			ret=connect(b->num,
				(struct sockaddr *)&c->them,
				sizeof(c->them));
			b->retry_reason=0;
			if (ret < 0)
				{
				if (BIO_sock_should_retry(ret))
					{
					BIO_set_retry_special(b);
					c->state=BIO_CONN_S_BLOCKED_CONNECT;
					b->retry_reason=BIO_RR_CONNECT;
					}
				else
					{
					SYSerr(SYS_F_CONNECT,get_last_socket_error());
					ERR_add_error_data(4,"host=",
						c->param_hostname,
						":",c->param_port);
					BIOerr(BIO_F_CONN_STATE,BIO_R_CONNECT_ERROR);
					}
				goto exit_loop;
				}
			else
				c->state=BIO_CONN_S_OK;
			break;

		case BIO_CONN_S_BLOCKED_CONNECT:
			i=BIO_sock_error(b->num);
			if (i)
				{
				BIO_clear_retry_flags(b);
				SYSerr(SYS_F_CONNECT,i);
				ERR_add_error_data(4,"host=",
					c->param_hostname,
					":",c->param_port);
				BIOerr(BIO_F_CONN_STATE,BIO_R_NBIO_CONNECT_ERROR);
				ret=0;
				goto exit_loop;
				}
			else
				c->state=BIO_CONN_S_OK;
			break;

		case BIO_CONN_S_OK:
			ret=1;
			goto exit_loop;
		default:
			abort();
			goto exit_loop;
			}

		if (cb != NULL)
			{
			if (!(ret=cb((BIO *)b,c->state,ret)))
				goto end;
			}
		}

	/* Loop does not exit */
exit_loop:
	if (cb != NULL)
		ret=cb((BIO *)b,c->state,ret);
end:
	return(ret);
	}

BIO_CONNECT *BIO_CONNECT_new(void)
	{
	BIO_CONNECT *ret;

	if ((ret=(BIO_CONNECT *)Malloc(sizeof(BIO_CONNECT))) == NULL)
		return(NULL);
	ret->state=BIO_CONN_S_BEFORE;
	ret->param_hostname=NULL;
	ret->param_port=NULL;
	ret->info_callback=NULL;
	ret->nbio=0;
	ret->ip[0]=0;
	ret->ip[1]=0;
	ret->ip[2]=0;
	ret->ip[3]=0;
	ret->port=0;
	memset((char *)&ret->them,0,sizeof(ret->them));
	return(ret);
	}

void BIO_CONNECT_free(BIO_CONNECT *a)
	{
	if(a == NULL)
	    return;

	if (a->param_hostname != NULL)
		Free(a->param_hostname);
	if (a->param_port != NULL)
		Free(a->param_port);
	Free(a);
	}

BIO_METHOD *BIO_s_connect(void)
	{
	return(&methods_connectp);
	}

static int conn_new(BIO *bi)
	{
	bi->init=0;
	bi->num=INVALID_SOCKET;
	bi->flags=0;
	if ((bi->ptr=(char *)BIO_CONNECT_new()) == NULL)
		return(0);
	else
		return(1);
	}

static void conn_close_socket(BIO *bio)
	{
	BIO_CONNECT *c;

	c=(BIO_CONNECT *)bio->ptr;
	if (bio->num != INVALID_SOCKET)
		{
		/* Only do a shutdown if things were established */
		if (c->state == BIO_CONN_S_OK)
			shutdown(bio->num,2);
		closesocket(bio->num);
		bio->num=INVALID_SOCKET;
		}
	}

static int conn_free(BIO *a)
	{
	BIO_CONNECT *data;

	if (a == NULL) return(0);
	data=(BIO_CONNECT *)a->ptr;
	 
	if (a->shutdown)
		{
		conn_close_socket(a);
		BIO_CONNECT_free(data);
		a->ptr=NULL;
		a->flags=0;
		a->init=0;
		}
	return(1);
	}
	
static int conn_read(BIO *b, char *out, int outl)
	{
	int ret=0;
	BIO_CONNECT *data;

	data=(BIO_CONNECT *)b->ptr;
	if (data->state != BIO_CONN_S_OK)
		{
		ret=conn_state(b,data);
		if (ret <= 0)
				return(ret);
		}

	if (out != NULL)
		{
		clear_socket_error();
		ret=readsocket(b->num,out,outl);
		BIO_clear_retry_flags(b);
		if (ret <= 0)
			{
			if (BIO_sock_should_retry(ret))
				BIO_set_retry_read(b);
			}
		}
	return(ret);
	}

static int conn_write(BIO *b, char *in, int inl)
	{
	int ret;
	BIO_CONNECT *data;

	data=(BIO_CONNECT *)b->ptr;
	if (data->state != BIO_CONN_S_OK)
		{
		ret=conn_state(b,data);
		if (ret <= 0) return(ret);
		}

	clear_socket_error();
	ret=writesocket(b->num,in,inl);
	BIO_clear_retry_flags(b);
	if (ret <= 0)
		{
		if (BIO_sock_should_retry(ret))
			BIO_set_retry_write(b);
		}
	return(ret);
	}

static long conn_ctrl(BIO *b, int cmd, long num, char *ptr)
	{
	BIO *dbio;
	int *ip;
	const char **pptr;
	long ret=1;
	BIO_CONNECT *data;

	data=(BIO_CONNECT *)b->ptr;

	switch (cmd)
		{
	case BIO_CTRL_RESET:
		ret=0;
		data->state=BIO_CONN_S_BEFORE;
		conn_close_socket(b);
		b->flags=0;
		break;
	case BIO_C_DO_STATE_MACHINE:
		/* use this one to start the connection */
		if (!data->state != BIO_CONN_S_OK)
			ret=(long)conn_state(b,data);
		else
			ret=1;
		break;
	case BIO_C_GET_CONNECT:
		if (ptr != NULL)
			{
			pptr=(const char **)ptr;
			if (num == 0)
				{
				*pptr=data->param_hostname;

				}
			else if (num == 1)
				{
				*pptr=data->param_port;
				}
			else if (num == 2)
				{
				*pptr= (char *)&(data->ip[0]);
				}
			else if (num == 3)
				{
				*((int *)ptr)=data->port;
				}
			if ((!b->init) || (ptr == NULL))
				*pptr="not initalised";
			ret=1;
			}
		break;
	case BIO_C_SET_CONNECT:
		if (ptr != NULL)
			{
			b->init=1;
			if (num == 0)
				{
				if (data->param_hostname != NULL)
					Free(data->param_hostname);
				data->param_hostname=BUF_strdup(ptr);
				}
			else if (num == 1)
				{
				if (data->param_port != NULL)
					Free(data->param_port);
				data->param_port=BUF_strdup(ptr);
				}
			else if (num == 2)
				{
				char buf[16];

				sprintf(buf,"%d.%d.%d.%d",
					ptr[0],ptr[1],ptr[2],ptr[3]);
				if (data->param_hostname != NULL)
					Free(data->param_hostname);
				data->param_hostname=BUF_strdup(buf);
				memcpy(&(data->ip[0]),ptr,4);
				}
			else if (num == 3)
				{
				char buf[16];

				sprintf(buf,"%d",*(int *)ptr);
				if (data->param_port != NULL)
					Free(data->param_port);
				data->param_port=BUF_strdup(buf);
				data->port= *(int *)ptr;
				}
			}
		break;
	case BIO_C_SET_NBIO:
		data->nbio=(int)num;
		break;
	case BIO_C_GET_FD:
		if (b->init)
			{
			ip=(int *)ptr;
			if (ip != NULL)
				*ip=b->num;
			ret=b->num;
			}
		else
			ret= -1;
		break;
	case BIO_CTRL_GET_CLOSE:
		ret=b->shutdown;
		break;
	case BIO_CTRL_SET_CLOSE:
		b->shutdown=(int)num;
		break;
	case BIO_CTRL_PENDING:
	case BIO_CTRL_WPENDING:
		ret=0;
		break;
	case BIO_CTRL_FLUSH:
		break;
	case BIO_CTRL_DUP:
		dbio=(BIO *)ptr;
		if (data->param_port)
			BIO_set_conn_port(dbio,data->param_port);
		if (data->param_hostname)
			BIO_set_conn_hostname(dbio,data->param_hostname);
		BIO_set_nbio(dbio,data->nbio);
		BIO_set_info_callback(dbio,data->info_callback);
		break;
	case BIO_CTRL_SET_CALLBACK:
		data->info_callback=(int (*)())ptr;
		break;
	case BIO_CTRL_GET_CALLBACK:
		{
		int (**fptr)();

		fptr=(int (**)())ptr;
		*fptr=data->info_callback;
		}
		break;
	default:
		ret=0;
		break;
		}
	return(ret);
	}

static int conn_puts(BIO *bp, char *str)
	{
	int n,ret;

	n=strlen(str);
	ret=conn_write(bp,str,n);
	return(ret);
	}

BIO *BIO_new_connect(char *str)
	{
	BIO *ret;

	ret=BIO_new(BIO_s_connect());
	if (ret == NULL) return(NULL);
	if (BIO_set_conn_hostname(ret,str))
		return(ret);
	else
		{
		BIO_free(ret);
		return(NULL);
		}
	}

#endif
Commit	Line	Data
d02b48c6	1	/* crypto/bio/bss_conn.c */
58964a49	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6 RE	3	* All rights reserved.
	4	*
	5	* This package is an SSL implementation written
	6	* by Eric Young (eay@cryptsoft.com).
	7	* The implementation was written so as to conform with Netscapes SSL.
	8	*
	9	* This library is free for commercial and non-commercial use as long as
	10	* the following conditions are aheared to. The following conditions
	11	* apply to all code found in this distribution, be it the RC4, RSA,
	12	* lhash, DES, etc., code; not just the SSL code. The SSL documentation
	13	* included with this distribution is covered by the same copyright terms
	14	* except that the holder is Tim Hudson (tjh@cryptsoft.com).
	15	*
	16	* Copyright remains Eric Young's, and as such any Copyright notices in
	17	* the code are not to be removed.
	18	* If this package is used in a product, Eric Young should be given attribution
	19	* as the author of the parts of the library used.
	20	* This can be in the form of a textual message at program startup or
	21	* in documentation (online or textual) provided with the package.
	22	*
	23	* Redistribution and use in source and binary forms, with or without
	24	* modification, are permitted provided that the following conditions
	25	* are met:
	26	* 1. Redistributions of source code must retain the copyright
	27	* notice, this list of conditions and the following disclaimer.
	28	* 2. Redistributions in binary form must reproduce the above copyright
	29	* notice, this list of conditions and the following disclaimer in the
	30	* documentation and/or other materials provided with the distribution.
	31	* 3. All advertising materials mentioning features or use of this software
	32	* must display the following acknowledgement:
	33	* "This product includes cryptographic software written by
	34	* Eric Young (eay@cryptsoft.com)"
	35	* The word 'cryptographic' can be left out if the rouines from the library
	36	* being used are not cryptographic related :-).
	37	* 4. If you include any Windows specific code (or a derivative thereof) from
	38	* the apps directory (application code) you must include an acknowledgement:
	39	* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
	40	*
	41	* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
	42	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	43	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	44	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	45	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	46	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	47	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	48	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	49	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	50	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	51	* SUCH DAMAGE.
	52	*
	53	* The licence and distribution terms for any publically available version or
	54	* derivative of this code cannot be changed. i.e. this code cannot simply be
	55	* copied and put under another distribution licence
	56	* [including the GNU Public Licence.]
	57	*/
	58
	59	#ifndef NO_SOCK
	60
	61	#include <stdio.h>
	62	#include <errno.h>
	63	#define USE_SOCKETS
	64	#include "cryptlib.h"
ec577822	65	#include <openssl/bio.h>
d02b48c6 RE	66
	67	/* BIOerr(BIO_F_WSASTARTUP,BIO_R_WSASTARTUP ); */
	68
	69	#ifdef WIN16
	70	#define SOCKET_PROTOCOL 0 /* more microsoft stupidity */
	71	#else
	72	#define SOCKET_PROTOCOL IPPROTO_TCP
	73	#endif
	74
	75	typedef struct bio_connect_st
	76	{
	77	int state;
	78
	79	char *param_hostname;
	80	char *param_port;
	81	int nbio;
	82
	83	unsigned char ip[4];
dfeab068	84	unsigned short port;
d02b48c6 RE	85
	86	struct sockaddr_in them;
	87
	88	/* int socket; this will be kept in bio->num so that it is
	89	* compatable with the bss_sock bio */
58964a49 RE	90
	91	/* called when the connection is initially made
	92	* callback(BIO,state,ret); The callback should return
	93	* 'ret'. state is for compatablity with the ssl info_callback */
	94	int (*info_callback)();
d02b48c6 RE	95	} BIO_CONNECT;
	96
	97	#ifndef NOPROTO
	98	static int conn_write(BIO h,char buf,int num);
	99	static int conn_read(BIO h,char buf,int size);
	100	static int conn_puts(BIO h,char str);
	101	static long conn_ctrl(BIO h,int cmd,long arg1,char arg2);
	102	static int conn_new(BIO *h);
	103	static int conn_free(BIO *data);
	104	#else
	105	static int conn_write();
	106	static int conn_read();
	107	static int conn_puts();
	108	static long conn_ctrl();
	109	static int conn_new();
	110	static int conn_free();
	111	#endif
	112
	113	#ifndef NOPROTO
	114
	115	static int conn_state(BIO b, BIO_CONNECT c);
	116	static void conn_close_socket(BIO *data);
	117	BIO_CONNECT *BIO_CONNECT_new(void );
	118	void BIO_CONNECT_free(BIO_CONNECT *a);
	119
	120	#else
	121
	122	static int conn_state();
	123	static void conn_close_socket();
	124	BIO_CONNECT *BIO_CONNECT_new();
	125	void BIO_CONNECT_free();
	126
	127	#endif
	128
d02b48c6 RE	129	static BIO_METHOD methods_connectp=
d02b48c6 RE	130	{
58964a49 RE	131	BIO_TYPE_CONNECT,
58964a49 RE	132	"socket connect",
d02b48c6 RE	133	conn_write,
	134	conn_read,
	135	conn_puts,
	136	NULL, /* connect_gets, */
	137	conn_ctrl,
	138	conn_new,
	139	conn_free,
	140	};
	141
6b691a5c	142	static int conn_state(BIO b, BIO_CONNECT c)
d02b48c6 RE	143	{
	144	int ret= -1,i;
	145	unsigned long l;
	146	char p,q;
58964a49	147	int (*cb)()=NULL;
d02b48c6	148
58964a49 RE	149	if (c->info_callback != NULL)
58964a49 RE	150	cb=c->info_callback;
d02b48c6	151
58964a49 RE	152	for (;;)
	153	{
	154	switch (c->state)
d02b48c6	155	{
58964a49 RE	156	case BIO_CONN_S_BEFORE:
	157	p=c->param_hostname;
	158	if (p == NULL)
	159	{
df82f5c8	160	BIOerr(BIO_F_CONN_STATE,BIO_R_NO_HOSTNAME_SPECIFIED);
58964a49 RE	161	goto exit_loop;
	162	}
	163	for ( ; *p != '\0'; p++)
	164	{
	165	if ((p == ':') \|\| (p == '/')) break;
	166	}
d02b48c6	167
58964a49 RE	168	i= *p;
58964a49 RE	169	if ((i == ':') \|\| (i == '/'))
d02b48c6	170	{
58964a49 RE	171
	172	*(p++)='\0';
	173	if (i == ':')
	174	{
	175	for (q=p; *q; q++)
	176	if (*q == '/')
	177	{
	178	*q='\0';
	179	break;
	180	}
	181	if (c->param_port != NULL)
	182	Free(c->param_port);
	183	c->param_port=BUF_strdup(p);
	184	}
d02b48c6	185	}
d02b48c6	186
dfeab068	187	if (c->param_port == NULL)
58964a49 RE	188	{
	189	BIOerr(BIO_F_CONN_STATE,BIO_R_NO_PORT_SPECIFIED);
	190	ERR_add_error_data(2,"host=",c->param_hostname);
	191	goto exit_loop;
	192	}
	193	c->state=BIO_CONN_S_GET_IP;
d02b48c6	194	break;
d02b48c6	195
58964a49 RE	196	case BIO_CONN_S_GET_IP:
	197	if (BIO_get_host_ip(c->param_hostname,&(c->ip[0])) <= 0)
	198	goto exit_loop;
	199	c->state=BIO_CONN_S_GET_PORT;
d02b48c6	200	break;
d02b48c6	201
58964a49	202	case BIO_CONN_S_GET_PORT:
dfeab068 RE	203	if (c->param_port == NULL)
	204	{
	205	abort();
	206	goto exit_loop;
	207	}
	208	else if (BIO_get_port(c->param_port,&c->port) <= 0)
58964a49 RE	209	goto exit_loop;
58964a49 RE	210	c->state=BIO_CONN_S_CREATE_SOCKET;
d02b48c6	211	break;
58964a49 RE	212
	213	case BIO_CONN_S_CREATE_SOCKET:
	214	/* now setup address */
	215	memset((char *)&c->them,0,sizeof(c->them));
	216	c->them.sin_family=AF_INET;
	217	c->them.sin_port=htons((unsigned short)c->port);
	218	l=(unsigned long)
	219	((unsigned long)c->ip[0]<<24L)\|
	220	((unsigned long)c->ip[1]<<16L)\|
	221	((unsigned long)c->ip[2]<< 8L)\|
	222	((unsigned long)c->ip[3]);
	223	c->them.sin_addr.s_addr=htonl(l);
	224	c->state=BIO_CONN_S_CREATE_SOCKET;
	225
	226	ret=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
	227	if (ret == INVALID_SOCKET)
	228	{
	229	SYSerr(SYS_F_SOCKET,get_last_socket_error());
	230	ERR_add_error_data(4,"host=",c->param_hostname,
	231	":",c->param_port);
	232	BIOerr(BIO_F_CONN_STATE,BIO_R_UNABLE_TO_CREATE_SOCKET);
	233	goto exit_loop;
	234	}
	235	b->num=ret;
	236	c->state=BIO_CONN_S_NBIO;
d02b48c6	237	break;
d02b48c6	238
58964a49	239	case BIO_CONN_S_NBIO:
58964a49	240	if (c->nbio)
d02b48c6	241	{
dfeab068	242	if (!BIO_socket_nbio(b->num,1))
58964a49 RE	243	{
	244	BIOerr(BIO_F_CONN_STATE,BIO_R_ERROR_SETTING_NBIO);
	245	ERR_add_error_data(4,"host=",
	246	c->param_hostname,
	247	":",c->param_port);
	248	goto exit_loop;
	249	}
d02b48c6	250	}
58964a49	251	c->state=BIO_CONN_S_CONNECT;
d02b48c6	252
58964a49 RE	253	#ifdef SO_KEEPALIVE
	254	i=1;
	255	i=setsockopt(b->num,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i));
	256	if (i < 0)
d02b48c6	257	{
58964a49 RE	258	SYSerr(SYS_F_SOCKET,get_last_socket_error());
	259	ERR_add_error_data(4,"host=",c->param_hostname,
	260	":",c->param_port);
	261	BIOerr(BIO_F_CONN_STATE,BIO_R_KEEPALIVE);
	262	goto exit_loop;
	263	}
	264	#endif
	265	break;
	266
	267	case BIO_CONN_S_CONNECT:
	268	BIO_clear_retry_flags(b);
	269	ret=connect(b->num,
	270	(struct sockaddr *)&c->them,
	271	sizeof(c->them));
	272	b->retry_reason=0;
	273	if (ret < 0)
	274	{
	275	if (BIO_sock_should_retry(ret))
	276	{
	277	BIO_set_retry_special(b);
	278	c->state=BIO_CONN_S_BLOCKED_CONNECT;
	279	b->retry_reason=BIO_RR_CONNECT;
	280	}
	281	else
	282	{
	283	SYSerr(SYS_F_CONNECT,get_last_socket_error());
	284	ERR_add_error_data(4,"host=",
	285	c->param_hostname,
	286	":",c->param_port);
	287	BIOerr(BIO_F_CONN_STATE,BIO_R_CONNECT_ERROR);
	288	}
	289	goto exit_loop;
d02b48c6 RE	290	}
d02b48c6 RE	291	else
58964a49 RE	292	c->state=BIO_CONN_S_OK;
	293	break;
	294
	295	case BIO_CONN_S_BLOCKED_CONNECT:
	296	i=BIO_sock_error(b->num);
	297	if (i)
d02b48c6	298	{
58964a49 RE	299	BIO_clear_retry_flags(b);
	300	SYSerr(SYS_F_CONNECT,i);
	301	ERR_add_error_data(4,"host=",
	302	c->param_hostname,
	303	":",c->param_port);
	304	BIOerr(BIO_F_CONN_STATE,BIO_R_NBIO_CONNECT_ERROR);
	305	ret=0;
	306	goto exit_loop;
d02b48c6	307	}
58964a49 RE	308	else
	309	c->state=BIO_CONN_S_OK;
	310	break;
	311
	312	case BIO_CONN_S_OK:
d02b48c6	313	ret=1;
58964a49 RE	314	goto exit_loop;
	315	default:
	316	abort();
	317	goto exit_loop;
d02b48c6	318	}
d02b48c6	319
58964a49	320	if (cb != NULL)
d02b48c6	321	{
58964a49 RE	322	if (!(ret=cb((BIO *)b,c->state,ret)))
58964a49 RE	323	goto end;
d02b48c6	324	}
58964a49	325	}
d02b48c6	326
dfeab068	327	/* Loop does not exit */
58964a49	328	exit_loop:
dfeab068 RE	329	if (cb != NULL)
dfeab068 RE	330	ret=cb((BIO *)b,c->state,ret);
58964a49	331	end:
d02b48c6 RE	332	return(ret);
	333	}
	334
6b691a5c	335	BIO_CONNECT *BIO_CONNECT_new(void)
d02b48c6 RE	336	{
	337	BIO_CONNECT *ret;
	338
	339	if ((ret=(BIO_CONNECT *)Malloc(sizeof(BIO_CONNECT))) == NULL)
	340	return(NULL);
58964a49	341	ret->state=BIO_CONN_S_BEFORE;
d02b48c6 RE	342	ret->param_hostname=NULL;
d02b48c6 RE	343	ret->param_port=NULL;
58964a49	344	ret->info_callback=NULL;
d02b48c6 RE	345	ret->nbio=0;
	346	ret->ip[0]=0;
	347	ret->ip[1]=0;
	348	ret->ip[2]=0;
	349	ret->ip[3]=0;
	350	ret->port=0;
	351	memset((char *)&ret->them,0,sizeof(ret->them));
d02b48c6 RE	352	return(ret);
	353	}
	354
6b691a5c	355	void BIO_CONNECT_free(BIO_CONNECT *a)
d02b48c6	356	{
e03ddfae BL	357	if(a == NULL)
	358	return;
	359
d02b48c6 RE	360	if (a->param_hostname != NULL)
	361	Free(a->param_hostname);
	362	if (a->param_port != NULL)
	363	Free(a->param_port);
	364	Free(a);
	365	}
	366
6b691a5c	367	BIO_METHOD *BIO_s_connect(void)
d02b48c6 RE	368	{
	369	return(&methods_connectp);
	370	}
	371
6b691a5c	372	static int conn_new(BIO *bi)
d02b48c6 RE	373	{
	374	bi->init=0;
	375	bi->num=INVALID_SOCKET;
	376	bi->flags=0;
	377	if ((bi->ptr=(char *)BIO_CONNECT_new()) == NULL)
	378	return(0);
	379	else
	380	return(1);
	381	}
	382
6b691a5c	383	static void conn_close_socket(BIO *bio)
d02b48c6 RE	384	{
	385	BIO_CONNECT *c;
	386
	387	c=(BIO_CONNECT *)bio->ptr;
	388	if (bio->num != INVALID_SOCKET)
	389	{
	390	/* Only do a shutdown if things were established */
58964a49	391	if (c->state == BIO_CONN_S_OK)
d02b48c6	392	shutdown(bio->num,2);
d02b48c6	393	closesocket(bio->num);
d02b48c6 RE	394	bio->num=INVALID_SOCKET;
	395	}
	396	}
	397
6b691a5c	398	static int conn_free(BIO *a)
d02b48c6 RE	399	{
	400	BIO_CONNECT *data;
	401
	402	if (a == NULL) return(0);
	403	data=(BIO_CONNECT *)a->ptr;
	404
	405	if (a->shutdown)
	406	{
	407	conn_close_socket(a);
	408	BIO_CONNECT_free(data);
	409	a->ptr=NULL;
	410	a->flags=0;
	411	a->init=0;
	412	}
	413	return(1);
	414	}
	415
6b691a5c	416	static int conn_read(BIO b, char out, int outl)
d02b48c6 RE	417	{
	418	int ret=0;
	419	BIO_CONNECT *data;
	420
	421	data=(BIO_CONNECT *)b->ptr;
58964a49	422	if (data->state != BIO_CONN_S_OK)
d02b48c6 RE	423	{
d02b48c6 RE	424	ret=conn_state(b,data);
58964a49 RE	425	if (ret <= 0)
58964a49 RE	426	return(ret);
d02b48c6 RE	427	}
	428
	429	if (out != NULL)
	430	{
58964a49	431	clear_socket_error();
dfeab068	432	ret=readsocket(b->num,out,outl);
d02b48c6 RE	433	BIO_clear_retry_flags(b);
	434	if (ret <= 0)
	435	{
	436	if (BIO_sock_should_retry(ret))
	437	BIO_set_retry_read(b);
	438	}
	439	}
	440	return(ret);
	441	}
	442
6b691a5c	443	static int conn_write(BIO b, char in, int inl)
d02b48c6 RE	444	{
	445	int ret;
	446	BIO_CONNECT *data;
	447
	448	data=(BIO_CONNECT *)b->ptr;
58964a49	449	if (data->state != BIO_CONN_S_OK)
d02b48c6 RE	450	{
	451	ret=conn_state(b,data);
	452	if (ret <= 0) return(ret);
	453	}
	454
58964a49	455	clear_socket_error();
dfeab068	456	ret=writesocket(b->num,in,inl);
d02b48c6 RE	457	BIO_clear_retry_flags(b);
	458	if (ret <= 0)
	459	{
	460	if (BIO_sock_should_retry(ret))
	461	BIO_set_retry_write(b);
	462	}
	463	return(ret);
	464	}
	465
6b691a5c	466	static long conn_ctrl(BIO b, int cmd, long num, char ptr)
d02b48c6 RE	467	{
	468	BIO *dbio;
	469	int *ip;
e778802f	470	const char **pptr;
d02b48c6 RE	471	long ret=1;
	472	BIO_CONNECT *data;
	473
	474	data=(BIO_CONNECT *)b->ptr;
	475
	476	switch (cmd)
	477	{
	478	case BIO_CTRL_RESET:
	479	ret=0;
58964a49	480	data->state=BIO_CONN_S_BEFORE;
d02b48c6 RE	481	conn_close_socket(b);
	482	b->flags=0;
	483	break;
	484	case BIO_C_DO_STATE_MACHINE:
	485	/* use this one to start the connection */
58964a49	486	if (!data->state != BIO_CONN_S_OK)
d02b48c6 RE	487	ret=(long)conn_state(b,data);
	488	else
	489	ret=1;
	490	break;
58964a49 RE	491	case BIO_C_GET_CONNECT:
	492	if (ptr != NULL)
	493	{
e778802f	494	pptr=(const char **)ptr;
58964a49 RE	495	if (num == 0)
	496	{
	497	*pptr=data->param_hostname;
	498
	499	}
	500	else if (num == 1)
	501	{
	502	*pptr=data->param_port;
	503	}
	504	else if (num == 2)
	505	{
	506	pptr= (char )&(data->ip[0]);
	507	}
	508	else if (num == 3)
	509	{
	510	((int )ptr)=data->port;
	511	}
	512	if ((!b->init) \|\| (ptr == NULL))
	513	*pptr="not initalised";
	514	ret=1;
	515	}
	516	break;
d02b48c6 RE	517	case BIO_C_SET_CONNECT:
	518	if (ptr != NULL)
	519	{
	520	b->init=1;
	521	if (num == 0)
	522	{
	523	if (data->param_hostname != NULL)
	524	Free(data->param_hostname);
	525	data->param_hostname=BUF_strdup(ptr);
	526	}
	527	else if (num == 1)
	528	{
	529	if (data->param_port != NULL)
	530	Free(data->param_port);
	531	data->param_port=BUF_strdup(ptr);
	532	}
58964a49	533	else if (num == 2)
dfeab068 RE	534	{
	535	char buf[16];
	536
	537	sprintf(buf,"%d.%d.%d.%d",
	538	ptr[0],ptr[1],ptr[2],ptr[3]);
	539	if (data->param_hostname != NULL)
	540	Free(data->param_hostname);
	541	data->param_hostname=BUF_strdup(buf);
	542	memcpy(&(data->ip[0]),ptr,4);
	543	}
58964a49	544	else if (num == 3)
dfeab068 RE	545	{
	546	char buf[16];
	547
	548	sprintf(buf,"%d",(int )ptr);
	549	if (data->param_port != NULL)
	550	Free(data->param_port);
	551	data->param_port=BUF_strdup(buf);
58964a49	552	data->port= (int )ptr;
dfeab068	553	}
d02b48c6 RE	554	}
	555	break;
	556	case BIO_C_SET_NBIO:
	557	data->nbio=(int)num;
	558	break;
	559	case BIO_C_GET_FD:
	560	if (b->init)
	561	{
	562	ip=(int *)ptr;
	563	if (ip != NULL)
	564	*ip=b->num;
	565	ret=b->num;
	566	}
	567	else
	568	ret= -1;
	569	break;
	570	case BIO_CTRL_GET_CLOSE:
	571	ret=b->shutdown;
	572	break;
	573	case BIO_CTRL_SET_CLOSE:
	574	b->shutdown=(int)num;
	575	break;
	576	case BIO_CTRL_PENDING:
	577	case BIO_CTRL_WPENDING:
	578	ret=0;
	579	break;
	580	case BIO_CTRL_FLUSH:
	581	break;
	582	case BIO_CTRL_DUP:
	583	dbio=(BIO *)ptr;
	584	if (data->param_port)
58964a49	585	BIO_set_conn_port(dbio,data->param_port);
d02b48c6	586	if (data->param_hostname)
58964a49	587	BIO_set_conn_hostname(dbio,data->param_hostname);
d02b48c6	588	BIO_set_nbio(dbio,data->nbio);
58964a49	589	BIO_set_info_callback(dbio,data->info_callback);
d02b48c6	590	break;
58964a49 RE	591	case BIO_CTRL_SET_CALLBACK:
	592	data->info_callback=(int (*)())ptr;
	593	break;
	594	case BIO_CTRL_GET_CALLBACK:
	595	{
	596	int (**fptr)();
d02b48c6	597
58964a49 RE	598	fptr=(int (**)())ptr;
	599	*fptr=data->info_callback;
	600	}
	601	break;
d02b48c6 RE	602	default:
	603	ret=0;
	604	break;
	605	}
	606	return(ret);
	607	}
	608
6b691a5c	609	static int conn_puts(BIO bp, char str)
d02b48c6 RE	610	{
	611	int n,ret;
	612
	613	n=strlen(str);
	614	ret=conn_write(bp,str,n);
	615	return(ret);
	616	}
	617
6b691a5c	618	BIO BIO_new_connect(char str)
d02b48c6 RE	619	{
	620	BIO *ret;
	621
	622	ret=BIO_new(BIO_s_connect());
	623	if (ret == NULL) return(NULL);
58964a49	624	if (BIO_set_conn_hostname(ret,str))
d02b48c6 RE	625	return(ret);
	626	else
	627	{
	628	BIO_free(ret);
	629	return(NULL);
	630	}
	631	}
	632
	633	#endif
	634