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

/* crypto/bio/bss_acpt.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>

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

#if (defined(VMS) && __VMS_VER < 70000000)
/* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
#undef FIONBIO
#endif

typedef struct bio_accept_st
	{
	int state;
	char *param_addr;

	int accept_sock;
	int accept_nbio;

	char *addr;
	int nbio;
	/* If 0, it means normal, if 1, do a connect on bind failure,
	 * and if there is no-one listening, bind with SO_REUSEADDR.
	 * If 2, always use SO_REUSEADDR. */
	int bind_mode;
	BIO *bio_chain;
	} BIO_ACCEPT;

static int acpt_write(BIO *h,char *buf,int num);
static int acpt_read(BIO *h,char *buf,int size);
static int acpt_puts(BIO *h,char *str);
static long acpt_ctrl(BIO *h,int cmd,long arg1,char *arg2);
static int acpt_new(BIO *h);
static int acpt_free(BIO *data);
static int acpt_state(BIO *b, BIO_ACCEPT *c);
static void acpt_close_socket(BIO *data);
BIO_ACCEPT *BIO_ACCEPT_new(void );
void BIO_ACCEPT_free(BIO_ACCEPT *a);

#define ACPT_S_BEFORE			1
#define ACPT_S_GET_ACCEPT_SOCKET	2
#define ACPT_S_OK			3

static BIO_METHOD methods_acceptp=
	{
	BIO_TYPE_ACCEPT,
	"socket accept",
	acpt_write,
	acpt_read,
	acpt_puts,
	NULL, /* connect_gets, */
	acpt_ctrl,
	acpt_new,
	acpt_free,
	NULL,
	};

BIO_METHOD *BIO_s_accept(void)
	{
	return(&methods_acceptp);
	}

static int acpt_new(BIO *bi)
	{
	BIO_ACCEPT *ba;

	bi->init=0;
	bi->num=INVALID_SOCKET;
	bi->flags=0;
	if ((ba=BIO_ACCEPT_new()) == NULL)
		return(0);
	bi->ptr=(char *)ba;
	ba->state=ACPT_S_BEFORE;
	bi->shutdown=1;
	return(1);
	}

BIO_ACCEPT *BIO_ACCEPT_new(void)
	{
	BIO_ACCEPT *ret;

	if ((ret=(BIO_ACCEPT *)Malloc(sizeof(BIO_ACCEPT))) == NULL)
		return(NULL);

	memset(ret,0,sizeof(BIO_ACCEPT));
	ret->accept_sock=INVALID_SOCKET;
	ret->bind_mode=BIO_BIND_NORMAL;
	return(ret);
	}

void BIO_ACCEPT_free(BIO_ACCEPT *a)
	{
	if(a == NULL)
	    return;

	if (a->param_addr != NULL) Free(a->param_addr);
	if (a->addr != NULL) Free(a->addr);
	if (a->bio_chain != NULL) BIO_free(a->bio_chain);
	Free(a);
	}

static void acpt_close_socket(BIO *bio)
	{
	BIO_ACCEPT *c;

	c=(BIO_ACCEPT *)bio->ptr;
	if (c->accept_sock != INVALID_SOCKET)
		{
		shutdown(c->accept_sock,2);
		closesocket(c->accept_sock);
		c->accept_sock=INVALID_SOCKET;
		bio->num=INVALID_SOCKET;
		}
	}

static int acpt_free(BIO *a)
	{
	BIO_ACCEPT *data;

	if (a == NULL) return(0);
	data=(BIO_ACCEPT *)a->ptr;
	 
	if (a->shutdown)
		{
		acpt_close_socket(a);
		BIO_ACCEPT_free(data);
		a->ptr=NULL;
		a->flags=0;
		a->init=0;
		}
	return(1);
	}
	
static int acpt_state(BIO *b, BIO_ACCEPT *c)
	{
	BIO *bio=NULL,*dbio;
	int s= -1;
	int i;

again:
	switch (c->state)
		{
	case ACPT_S_BEFORE:
		if (c->param_addr == NULL)
			{
			BIOerr(BIO_F_ACPT_STATE,BIO_R_NO_ACCEPT_PORT_SPECIFIED);
			return(-1);
			}
		s=BIO_get_accept_socket(c->param_addr,c->bind_mode);
		if (s == INVALID_SOCKET)
			return(-1);

		if (c->accept_nbio)
			{
			if (!BIO_socket_nbio(s,1))
				{
				closesocket(s);
				BIOerr(BIO_F_ACPT_STATE,BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET);
				return(-1);
				}
			}
		c->accept_sock=s;
		b->num=s;
		c->state=ACPT_S_GET_ACCEPT_SOCKET;
		return(1);
		/* break; */
	case ACPT_S_GET_ACCEPT_SOCKET:
		if (b->next_bio != NULL)
			{
			c->state=ACPT_S_OK;
			goto again;
			}
		i=BIO_accept(c->accept_sock,&(c->addr));
		if (i < 0) return(i);
		bio=BIO_new_socket(i,BIO_CLOSE);
		if (bio == NULL) goto err;

		BIO_set_callback(bio,BIO_get_callback(b));
		BIO_set_callback_arg(bio,BIO_get_callback_arg(b));

		if (c->nbio)
			{
			if (!BIO_socket_nbio(i,1))
				{
				BIOerr(BIO_F_ACPT_STATE,BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET);
				goto err;
				}
			}

		/* If the accept BIO has an bio_chain, we dup it and
		 * put the new socket at the end. */
		if (c->bio_chain != NULL)
			{
			if ((dbio=BIO_dup_chain(c->bio_chain)) == NULL)
				goto err;
			if (!BIO_push(dbio,bio)) goto err;
			bio=dbio;
			}
		if (BIO_push(b,bio) == NULL) goto err;

		c->state=ACPT_S_OK;
		return(1);
err:
		if (bio != NULL)
			BIO_free(bio);
		else if (s >= 0)
			closesocket(s);
		return(0);
		/* break; */
	case ACPT_S_OK:
		if (b->next_bio == NULL)
			{
			c->state=ACPT_S_GET_ACCEPT_SOCKET;
			goto again;
			}
		return(1);
		/* break; */
	default:	
		return(0);
		/* break; */
		}

	}

static int acpt_read(BIO *b, char *out, int outl)
	{
	int ret=0;
	BIO_ACCEPT *data;

	BIO_clear_retry_flags(b);
	data=(BIO_ACCEPT *)b->ptr;

	while (b->next_bio == NULL)
		{
		ret=acpt_state(b,data);
		if (ret <= 0) return(ret);
		}

	ret=BIO_read(b->next_bio,out,outl);
	BIO_copy_next_retry(b);
	return(ret);
	}

static int acpt_write(BIO *b, char *in, int inl)
	{
	int ret;
	BIO_ACCEPT *data;

	BIO_clear_retry_flags(b);
	data=(BIO_ACCEPT *)b->ptr;

	while (b->next_bio == NULL)
		{
		ret=acpt_state(b,data);
		if (ret <= 0) return(ret);
		}

	ret=BIO_write(b->next_bio,in,inl);
	BIO_copy_next_retry(b);
	return(ret);
	}

static long acpt_ctrl(BIO *b, int cmd, long num, char *ptr)
	{
	BIO *dbio;
	int *ip;
	long ret=1;
	BIO_ACCEPT *data;
	char **pp;

	data=(BIO_ACCEPT *)b->ptr;

	switch (cmd)
		{
	case BIO_CTRL_RESET:
		ret=0;
		data->state=ACPT_S_BEFORE;
		acpt_close_socket(b);
		b->flags=0;
		break;
	case BIO_C_DO_STATE_MACHINE:
		/* use this one to start the connection */
		ret=(long)acpt_state(b,data);
		break;
	case BIO_C_SET_ACCEPT:
		if (ptr != NULL)
			{
			if (num == 0)
				{
				b->init=1;
				if (data->param_addr != NULL)
					Free(data->param_addr);
				data->param_addr=BUF_strdup(ptr);
				}
			else if (num == 1)
				{
				data->accept_nbio=(ptr != NULL);
				}
			else if (num == 2)
				{
				if (data->bio_chain != NULL)
					BIO_free(data->bio_chain);
				data->bio_chain=(BIO *)ptr;
				}
			}
		break;
	case BIO_C_SET_NBIO:
		data->nbio=(int)num;
		break;
	case BIO_C_SET_FD:
		b->init=1;
		b->num= *((int *)ptr);
		data->accept_sock=b->num;
		data->state=ACPT_S_GET_ACCEPT_SOCKET;
		b->shutdown=(int)num;
		b->init=1;
		break;
	case BIO_C_GET_FD:
		if (b->init)
			{
			ip=(int *)ptr;
			if (ip != NULL)
				*ip=data->accept_sock;
			ret=data->accept_sock;
			}
		else
			ret= -1;
		break;
	case BIO_C_GET_ACCEPT:
		if (b->init)
			{
			if (ptr != NULL)
				{
				pp=(char **)ptr;
				*pp=data->param_addr;
				}
			else
				ret= -1;
			}
		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_C_SET_BIND_MODE:
		data->bind_mode=(int)num;
		break;
	case BIO_C_GET_BIND_MODE:
		ret=(long)data->bind_mode;
		break;
	case BIO_CTRL_DUP:
		dbio=(BIO *)ptr;
/*		if (data->param_port) EAY EAY
			BIO_set_port(dbio,data->param_port);
		if (data->param_hostname)
			BIO_set_hostname(dbio,data->param_hostname);
		BIO_set_nbio(dbio,data->nbio); */
		break;

	default:
		ret=0;
		break;
		}
	return(ret);
	}

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

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

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

	ret=BIO_new(BIO_s_accept());
	if (ret == NULL) return(NULL);
	if (BIO_set_accept_port(ret,str))
		return(ret);
	else
		{
		BIO_free(ret);
		return(NULL);
		}
	}

#endif
Commit	Line	Data
d02b48c6	1	/* crypto/bio/bss_acpt.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	66
d02b48c6 RE	67	#ifdef WIN16
	68	#define SOCKET_PROTOCOL 0 /* more microsoft stupidity */
	69	#else
	70	#define SOCKET_PROTOCOL IPPROTO_TCP
	71	#endif
	72
75e0770d UM	73	#if (defined(VMS) && __VMS_VER < 70000000)
75e0770d UM	74	/* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
7d7d2cbc UM	75	#undef FIONBIO
	76	#endif
	77
d02b48c6 RE	78	typedef struct bio_accept_st
	79	{
	80	int state;
	81	char *param_addr;
	82
	83	int accept_sock;
	84	int accept_nbio;
	85
	86	char *addr;
	87	int nbio;
dfeab068 RE	88	/* If 0, it means normal, if 1, do a connect on bind failure,
	89	* and if there is no-one listening, bind with SO_REUSEADDR.
	90	* If 2, always use SO_REUSEADDR. */
	91	int bind_mode;
d02b48c6 RE	92	BIO *bio_chain;
	93	} BIO_ACCEPT;
	94
d02b48c6 RE	95	static int acpt_write(BIO h,char buf,int num);
	96	static int acpt_read(BIO h,char buf,int size);
	97	static int acpt_puts(BIO h,char str);
	98	static long acpt_ctrl(BIO h,int cmd,long arg1,char arg2);
	99	static int acpt_new(BIO *h);
	100	static int acpt_free(BIO *data);
d02b48c6 RE	101	static int acpt_state(BIO b, BIO_ACCEPT c);
	102	static void acpt_close_socket(BIO *data);
	103	BIO_ACCEPT *BIO_ACCEPT_new(void );
	104	void BIO_ACCEPT_free(BIO_ACCEPT *a);
	105
d02b48c6 RE	106	#define ACPT_S_BEFORE 1
	107	#define ACPT_S_GET_ACCEPT_SOCKET 2
	108	#define ACPT_S_OK 3
	109
	110	static BIO_METHOD methods_acceptp=
	111	{
58964a49 RE	112	BIO_TYPE_ACCEPT,
58964a49 RE	113	"socket accept",
d02b48c6 RE	114	acpt_write,
	115	acpt_read,
	116	acpt_puts,
	117	NULL, /* connect_gets, */
	118	acpt_ctrl,
	119	acpt_new,
	120	acpt_free,
d3442bc7	121	NULL,
d02b48c6 RE	122	};
d02b48c6 RE	123
6b691a5c	124	BIO_METHOD *BIO_s_accept(void)
d02b48c6 RE	125	{
	126	return(&methods_acceptp);
	127	}
	128
6b691a5c	129	static int acpt_new(BIO *bi)
d02b48c6 RE	130	{
	131	BIO_ACCEPT *ba;
	132
	133	bi->init=0;
	134	bi->num=INVALID_SOCKET;
	135	bi->flags=0;
	136	if ((ba=BIO_ACCEPT_new()) == NULL)
	137	return(0);
	138	bi->ptr=(char *)ba;
	139	ba->state=ACPT_S_BEFORE;
	140	bi->shutdown=1;
	141	return(1);
	142	}
	143
6b691a5c	144	BIO_ACCEPT *BIO_ACCEPT_new(void)
d02b48c6 RE	145	{
	146	BIO_ACCEPT *ret;
	147
	148	if ((ret=(BIO_ACCEPT *)Malloc(sizeof(BIO_ACCEPT))) == NULL)
	149	return(NULL);
	150
	151	memset(ret,0,sizeof(BIO_ACCEPT));
	152	ret->accept_sock=INVALID_SOCKET;
dfeab068	153	ret->bind_mode=BIO_BIND_NORMAL;
d02b48c6 RE	154	return(ret);
	155	}
	156
6b691a5c	157	void BIO_ACCEPT_free(BIO_ACCEPT *a)
d02b48c6	158	{
e03ddfae BL	159	if(a == NULL)
	160	return;
	161
d02b48c6 RE	162	if (a->param_addr != NULL) Free(a->param_addr);
	163	if (a->addr != NULL) Free(a->addr);
	164	if (a->bio_chain != NULL) BIO_free(a->bio_chain);
	165	Free(a);
	166	}
	167
6b691a5c	168	static void acpt_close_socket(BIO *bio)
d02b48c6 RE	169	{
	170	BIO_ACCEPT *c;
	171
	172	c=(BIO_ACCEPT *)bio->ptr;
	173	if (c->accept_sock != INVALID_SOCKET)
	174	{
	175	shutdown(c->accept_sock,2);
d02b48c6	176	closesocket(c->accept_sock);
d02b48c6 RE	177	c->accept_sock=INVALID_SOCKET;
	178	bio->num=INVALID_SOCKET;
	179	}
	180	}
	181
6b691a5c	182	static int acpt_free(BIO *a)
d02b48c6 RE	183	{
	184	BIO_ACCEPT *data;
	185
	186	if (a == NULL) return(0);
	187	data=(BIO_ACCEPT *)a->ptr;
	188
	189	if (a->shutdown)
	190	{
	191	acpt_close_socket(a);
	192	BIO_ACCEPT_free(data);
	193	a->ptr=NULL;
	194	a->flags=0;
	195	a->init=0;
	196	}
	197	return(1);
	198	}
	199
6b691a5c	200	static int acpt_state(BIO b, BIO_ACCEPT c)
d02b48c6 RE	201	{
d02b48c6 RE	202	BIO bio=NULL,dbio;
d02b48c6 RE	203	int s= -1;
	204	int i;
	205
	206	again:
	207	switch (c->state)
	208	{
	209	case ACPT_S_BEFORE:
	210	if (c->param_addr == NULL)
	211	{
	212	BIOerr(BIO_F_ACPT_STATE,BIO_R_NO_ACCEPT_PORT_SPECIFIED);
	213	return(-1);
	214	}
dfeab068	215	s=BIO_get_accept_socket(c->param_addr,c->bind_mode);
d02b48c6 RE	216	if (s == INVALID_SOCKET)
	217	return(-1);
	218
d02b48c6 RE	219	if (c->accept_nbio)
d02b48c6 RE	220	{
dfeab068	221	if (!BIO_socket_nbio(s,1))
d02b48c6	222	{
d02b48c6	223	closesocket(s);
d02b48c6 RE	224	BIOerr(BIO_F_ACPT_STATE,BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET);
	225	return(-1);
	226	}
	227	}
d02b48c6 RE	228	c->accept_sock=s;
	229	b->num=s;
	230	c->state=ACPT_S_GET_ACCEPT_SOCKET;
	231	return(1);
dfeab068	232	/* break; */
d02b48c6 RE	233	case ACPT_S_GET_ACCEPT_SOCKET:
	234	if (b->next_bio != NULL)
	235	{
	236	c->state=ACPT_S_OK;
	237	goto again;
	238	}
	239	i=BIO_accept(c->accept_sock,&(c->addr));
	240	if (i < 0) return(i);
	241	bio=BIO_new_socket(i,BIO_CLOSE);
	242	if (bio == NULL) goto err;
	243
	244	BIO_set_callback(bio,BIO_get_callback(b));
	245	BIO_set_callback_arg(bio,BIO_get_callback_arg(b));
	246
d02b48c6 RE	247	if (c->nbio)
d02b48c6 RE	248	{
dfeab068	249	if (!BIO_socket_nbio(i,1))
d02b48c6 RE	250	{
	251	BIOerr(BIO_F_ACPT_STATE,BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET);
	252	goto err;
	253	}
	254	}
d02b48c6 RE	255
	256	/* If the accept BIO has an bio_chain, we dup it and
	257	* put the new socket at the end. */
	258	if (c->bio_chain != NULL)
	259	{
	260	if ((dbio=BIO_dup_chain(c->bio_chain)) == NULL)
	261	goto err;
	262	if (!BIO_push(dbio,bio)) goto err;
	263	bio=dbio;
	264	}
	265	if (BIO_push(b,bio) == NULL) goto err;
	266
	267	c->state=ACPT_S_OK;
	268	return(1);
	269	err:
	270	if (bio != NULL)
	271	BIO_free(bio);
	272	else if (s >= 0)
d02b48c6	273	closesocket(s);
d02b48c6	274	return(0);
dfeab068	275	/* break; */
d02b48c6 RE	276	case ACPT_S_OK:
	277	if (b->next_bio == NULL)
	278	{
	279	c->state=ACPT_S_GET_ACCEPT_SOCKET;
	280	goto again;
	281	}
	282	return(1);
dfeab068	283	/* break; */
d02b48c6 RE	284	default:
d02b48c6 RE	285	return(0);
dfeab068	286	/* break; */
d02b48c6 RE	287	}
	288
	289	}
	290
6b691a5c	291	static int acpt_read(BIO b, char out, int outl)
d02b48c6 RE	292	{
	293	int ret=0;
	294	BIO_ACCEPT *data;
	295
b1c4fe36	296	BIO_clear_retry_flags(b);
d02b48c6 RE	297	data=(BIO_ACCEPT *)b->ptr;
	298
	299	while (b->next_bio == NULL)
	300	{
	301	ret=acpt_state(b,data);
	302	if (ret <= 0) return(ret);
	303	}
	304
	305	ret=BIO_read(b->next_bio,out,outl);
	306	BIO_copy_next_retry(b);
	307	return(ret);
	308	}
	309
6b691a5c	310	static int acpt_write(BIO b, char in, int inl)
d02b48c6 RE	311	{
	312	int ret;
	313	BIO_ACCEPT *data;
	314
	315	BIO_clear_retry_flags(b);
	316	data=(BIO_ACCEPT *)b->ptr;
	317
	318	while (b->next_bio == NULL)
	319	{
	320	ret=acpt_state(b,data);
	321	if (ret <= 0) return(ret);
	322	}
	323
	324	ret=BIO_write(b->next_bio,in,inl);
	325	BIO_copy_next_retry(b);
	326	return(ret);
	327	}
	328
6b691a5c	329	static long acpt_ctrl(BIO b, int cmd, long num, char ptr)
d02b48c6 RE	330	{
	331	BIO *dbio;
	332	int *ip;
	333	long ret=1;
	334	BIO_ACCEPT *data;
58964a49	335	char **pp;
d02b48c6 RE	336
	337	data=(BIO_ACCEPT *)b->ptr;
	338
	339	switch (cmd)
	340	{
	341	case BIO_CTRL_RESET:
	342	ret=0;
	343	data->state=ACPT_S_BEFORE;
	344	acpt_close_socket(b);
	345	b->flags=0;
	346	break;
	347	case BIO_C_DO_STATE_MACHINE:
	348	/* use this one to start the connection */
	349	ret=(long)acpt_state(b,data);
	350	break;
	351	case BIO_C_SET_ACCEPT:
	352	if (ptr != NULL)
	353	{
	354	if (num == 0)
	355	{
	356	b->init=1;
	357	if (data->param_addr != NULL)
	358	Free(data->param_addr);
	359	data->param_addr=BUF_strdup(ptr);
	360	}
	361	else if (num == 1)
	362	{
	363	data->accept_nbio=(ptr != NULL);
	364	}
	365	else if (num == 2)
	366	{
	367	if (data->bio_chain != NULL)
	368	BIO_free(data->bio_chain);
	369	data->bio_chain=(BIO *)ptr;
	370	}
	371	}
	372	break;
	373	case BIO_C_SET_NBIO:
	374	data->nbio=(int)num;
	375	break;
dfeab068 RE	376	case BIO_C_SET_FD:
	377	b->init=1;
	378	b->num= ((int )ptr);
	379	data->accept_sock=b->num;
	380	data->state=ACPT_S_GET_ACCEPT_SOCKET;
	381	b->shutdown=(int)num;
	382	b->init=1;
	383	break;
d02b48c6 RE	384	case BIO_C_GET_FD:
	385	if (b->init)
	386	{
	387	ip=(int *)ptr;
	388	if (ip != NULL)
	389	*ip=data->accept_sock;
dfeab068	390	ret=data->accept_sock;
d02b48c6 RE	391	}
	392	else
	393	ret= -1;
	394	break;
58964a49 RE	395	case BIO_C_GET_ACCEPT:
	396	if (b->init)
	397	{
	398	if (ptr != NULL)
	399	{
	400	pp=(char **)ptr;
	401	*pp=data->param_addr;
	402	}
	403	else
	404	ret= -1;
	405	}
	406	else
	407	ret= -1;
	408	break;
d02b48c6 RE	409	case BIO_CTRL_GET_CLOSE:
	410	ret=b->shutdown;
	411	break;
	412	case BIO_CTRL_SET_CLOSE:
	413	b->shutdown=(int)num;
	414	break;
	415	case BIO_CTRL_PENDING:
	416	case BIO_CTRL_WPENDING:
	417	ret=0;
	418	break;
	419	case BIO_CTRL_FLUSH:
	420	break;
dfeab068 RE	421	case BIO_C_SET_BIND_MODE:
	422	data->bind_mode=(int)num;
	423	break;
	424	case BIO_C_GET_BIND_MODE:
	425	ret=(long)data->bind_mode;
	426	break;
d02b48c6 RE	427	case BIO_CTRL_DUP:
	428	dbio=(BIO *)ptr;
	429	/* if (data->param_port) EAY EAY
	430	BIO_set_port(dbio,data->param_port);
	431	if (data->param_hostname)
	432	BIO_set_hostname(dbio,data->param_hostname);
	433	BIO_set_nbio(dbio,data->nbio); */
	434	break;
	435
	436	default:
	437	ret=0;
	438	break;
	439	}
	440	return(ret);
	441	}
	442
6b691a5c	443	static int acpt_puts(BIO bp, char str)
d02b48c6 RE	444	{
	445	int n,ret;
	446
	447	n=strlen(str);
	448	ret=acpt_write(bp,str,n);
	449	return(ret);
	450	}
	451
6b691a5c	452	BIO BIO_new_accept(char str)
d02b48c6 RE	453	{
	454	BIO *ret;
	455
	456	ret=BIO_new(BIO_s_accept());
	457	if (ret == NULL) return(NULL);
	458	if (BIO_set_accept_port(ret,str))
	459	return(ret);
	460	else
	461	{
	462	BIO_free(ret);
	463	return(NULL);
	464	}
	465	}
	466
	467	#endif