[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 "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_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;

#ifndef NOPROTO
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);
#else
static int acpt_write();
static int acpt_read();
static int acpt_puts();
static long acpt_ctrl();
static int acpt_new();
static int acpt_free();
#endif

#ifndef NOPROTO
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);

#else

static int acpt_state();
static void acpt_close_socket();
BIO_ACCEPT *BIO_ACCEPT_new();
void BIO_ACCEPT_free();
#endif

#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,
	};

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

static int acpt_new(bi)
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()
	{
	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(a)
BIO_ACCEPT *a;
	{
	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;
	{
	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(a)
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(b,c)
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(b,out,outl)
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(b,in,inl)
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(b,cmd,num,ptr)
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(bp,str)
BIO *bp;
char *str;
	{
	int n,ret;

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

BIO *BIO_new_accept(str)
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"
	65	#include "bio.h"
	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_accept_st
76	{
77	int state;
78	char *param_addr;
79
80	int accept_sock;
81	int accept_nbio;
82
83	char *addr;
84	int nbio;
dfeab068 RE	85	/* If 0, it means normal, if 1, do a connect on bind failure,
	86	* and if there is no-one listening, bind with SO_REUSEADDR.
	87	* If 2, always use SO_REUSEADDR. */
	88	int bind_mode;
d02b48c6 RE	89	BIO *bio_chain;
	90	} BIO_ACCEPT;
	91
	92	#ifndef NOPROTO
	93	static int acpt_write(BIO h,char buf,int num);
	94	static int acpt_read(BIO h,char buf,int size);
	95	static int acpt_puts(BIO h,char str);
	96	static long acpt_ctrl(BIO h,int cmd,long arg1,char arg2);
	97	static int acpt_new(BIO *h);
	98	static int acpt_free(BIO *data);
	99	#else
	100	static int acpt_write();
	101	static int acpt_read();
	102	static int acpt_puts();
	103	static long acpt_ctrl();
	104	static int acpt_new();
	105	static int acpt_free();
	106	#endif
	107
	108	#ifndef NOPROTO
	109	static int acpt_state(BIO b, BIO_ACCEPT c);
	110	static void acpt_close_socket(BIO *data);
	111	BIO_ACCEPT *BIO_ACCEPT_new(void );
	112	void BIO_ACCEPT_free(BIO_ACCEPT *a);
	113
	114	#else
	115
	116	static int acpt_state();
	117	static void acpt_close_socket();
	118	BIO_ACCEPT *BIO_ACCEPT_new();
	119	void BIO_ACCEPT_free();
	120	#endif
	121
	122	#define ACPT_S_BEFORE 1
	123	#define ACPT_S_GET_ACCEPT_SOCKET 2
	124	#define ACPT_S_OK 3
	125
	126	static BIO_METHOD methods_acceptp=
	127	{
58964a49 RE	128	BIO_TYPE_ACCEPT,
58964a49 RE	129	"socket accept",
d02b48c6 RE	130	acpt_write,
	131	acpt_read,
	132	acpt_puts,
	133	NULL, /* connect_gets, */
	134	acpt_ctrl,
	135	acpt_new,
	136	acpt_free,
	137	};
	138
	139	BIO_METHOD *BIO_s_accept()
	140	{
	141	return(&methods_acceptp);
	142	}
	143
	144	static int acpt_new(bi)
	145	BIO *bi;
	146	{
	147	BIO_ACCEPT *ba;
	148
	149	bi->init=0;
	150	bi->num=INVALID_SOCKET;
	151	bi->flags=0;
	152	if ((ba=BIO_ACCEPT_new()) == NULL)
	153	return(0);
	154	bi->ptr=(char *)ba;
	155	ba->state=ACPT_S_BEFORE;
	156	bi->shutdown=1;
	157	return(1);
	158	}
	159
	160	BIO_ACCEPT *BIO_ACCEPT_new()
	161	{
	162	BIO_ACCEPT *ret;
	163
	164	if ((ret=(BIO_ACCEPT *)Malloc(sizeof(BIO_ACCEPT))) == NULL)
	165	return(NULL);
	166
	167	memset(ret,0,sizeof(BIO_ACCEPT));
	168	ret->accept_sock=INVALID_SOCKET;
dfeab068	169	ret->bind_mode=BIO_BIND_NORMAL;
d02b48c6 RE	170	return(ret);
	171	}
	172
	173	void BIO_ACCEPT_free(a)
	174	BIO_ACCEPT *a;
	175	{
	176	if (a->param_addr != NULL) Free(a->param_addr);
	177	if (a->addr != NULL) Free(a->addr);
	178	if (a->bio_chain != NULL) BIO_free(a->bio_chain);
	179	Free(a);
	180	}
	181
	182	static void acpt_close_socket(bio)
	183	BIO *bio;
	184	{
	185	BIO_ACCEPT *c;
	186
	187	c=(BIO_ACCEPT *)bio->ptr;
	188	if (c->accept_sock != INVALID_SOCKET)
	189	{
	190	shutdown(c->accept_sock,2);
d02b48c6	191	closesocket(c->accept_sock);
d02b48c6 RE	192	c->accept_sock=INVALID_SOCKET;
	193	bio->num=INVALID_SOCKET;
	194	}
	195	}
	196
	197	static int acpt_free(a)
	198	BIO *a;
	199	{
	200	BIO_ACCEPT *data;
	201
	202	if (a == NULL) return(0);
	203	data=(BIO_ACCEPT *)a->ptr;
	204
	205	if (a->shutdown)
	206	{
	207	acpt_close_socket(a);
	208	BIO_ACCEPT_free(data);
	209	a->ptr=NULL;
	210	a->flags=0;
	211	a->init=0;
	212	}
	213	return(1);
	214	}
	215
	216	static int acpt_state(b,c)
	217	BIO *b;
	218	BIO_ACCEPT *c;
	219	{
	220	BIO bio=NULL,dbio;
d02b48c6 RE	221	int s= -1;
	222	int i;
	223
	224	again:
	225	switch (c->state)
	226	{
	227	case ACPT_S_BEFORE:
	228	if (c->param_addr == NULL)
	229	{
	230	BIOerr(BIO_F_ACPT_STATE,BIO_R_NO_ACCEPT_PORT_SPECIFIED);
	231	return(-1);
	232	}
dfeab068	233	s=BIO_get_accept_socket(c->param_addr,c->bind_mode);
d02b48c6 RE	234	if (s == INVALID_SOCKET)
	235	return(-1);
	236
d02b48c6 RE	237	if (c->accept_nbio)
d02b48c6 RE	238	{
dfeab068	239	if (!BIO_socket_nbio(s,1))
d02b48c6	240	{
d02b48c6	241	closesocket(s);
d02b48c6 RE	242	BIOerr(BIO_F_ACPT_STATE,BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET);
	243	return(-1);
	244	}
	245	}
d02b48c6 RE	246	c->accept_sock=s;
	247	b->num=s;
	248	c->state=ACPT_S_GET_ACCEPT_SOCKET;
	249	return(1);
dfeab068	250	/* break; */
d02b48c6 RE	251	case ACPT_S_GET_ACCEPT_SOCKET:
	252	if (b->next_bio != NULL)
	253	{
	254	c->state=ACPT_S_OK;
	255	goto again;
	256	}
	257	i=BIO_accept(c->accept_sock,&(c->addr));
	258	if (i < 0) return(i);
	259	bio=BIO_new_socket(i,BIO_CLOSE);
	260	if (bio == NULL) goto err;
	261
	262	BIO_set_callback(bio,BIO_get_callback(b));
	263	BIO_set_callback_arg(bio,BIO_get_callback_arg(b));
	264
d02b48c6 RE	265	if (c->nbio)
d02b48c6 RE	266	{
dfeab068	267	if (!BIO_socket_nbio(i,1))
d02b48c6 RE	268	{
	269	BIOerr(BIO_F_ACPT_STATE,BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET);
	270	goto err;
	271	}
	272	}
d02b48c6 RE	273
	274	/* If the accept BIO has an bio_chain, we dup it and
	275	* put the new socket at the end. */
	276	if (c->bio_chain != NULL)
	277	{
	278	if ((dbio=BIO_dup_chain(c->bio_chain)) == NULL)
	279	goto err;
	280	if (!BIO_push(dbio,bio)) goto err;
	281	bio=dbio;
	282	}
	283	if (BIO_push(b,bio) == NULL) goto err;
	284
	285	c->state=ACPT_S_OK;
	286	return(1);
	287	err:
	288	if (bio != NULL)
	289	BIO_free(bio);
	290	else if (s >= 0)
d02b48c6	291	closesocket(s);
d02b48c6	292	return(0);
dfeab068	293	/* break; */
d02b48c6 RE	294	case ACPT_S_OK:
	295	if (b->next_bio == NULL)
	296	{
	297	c->state=ACPT_S_GET_ACCEPT_SOCKET;
	298	goto again;
	299	}
	300	return(1);
dfeab068	301	/* break; */
d02b48c6 RE	302	default:
d02b48c6 RE	303	return(0);
dfeab068	304	/* break; */
d02b48c6 RE	305	}
	306
	307	}
	308
	309	static int acpt_read(b,out,outl)
	310	BIO *b;
	311	char *out;
	312	int outl;
	313	{
	314	int ret=0;
	315	BIO_ACCEPT *data;
	316
	317	BIO_clear_retry_flags(b);
	318	data=(BIO_ACCEPT *)b->ptr;
	319
	320	while (b->next_bio == NULL)
	321	{
	322	ret=acpt_state(b,data);
	323	if (ret <= 0) return(ret);
	324	}
	325
	326	ret=BIO_read(b->next_bio,out,outl);
	327	BIO_copy_next_retry(b);
	328	return(ret);
	329	}
	330
	331	static int acpt_write(b,in,inl)
	332	BIO *b;
	333	char *in;
	334	int inl;
	335	{
	336	int ret;
	337	BIO_ACCEPT *data;
	338
	339	BIO_clear_retry_flags(b);
	340	data=(BIO_ACCEPT *)b->ptr;
	341
	342	while (b->next_bio == NULL)
	343	{
	344	ret=acpt_state(b,data);
	345	if (ret <= 0) return(ret);
	346	}
	347
	348	ret=BIO_write(b->next_bio,in,inl);
	349	BIO_copy_next_retry(b);
	350	return(ret);
	351	}
	352
	353	static long acpt_ctrl(b,cmd,num,ptr)
	354	BIO *b;
	355	int cmd;
	356	long num;
	357	char *ptr;
	358	{
	359	BIO *dbio;
	360	int *ip;
	361	long ret=1;
	362	BIO_ACCEPT *data;
58964a49	363	char **pp;
d02b48c6 RE	364
	365	data=(BIO_ACCEPT *)b->ptr;
	366
	367	switch (cmd)
	368	{
	369	case BIO_CTRL_RESET:
	370	ret=0;
	371	data->state=ACPT_S_BEFORE;
	372	acpt_close_socket(b);
	373	b->flags=0;
	374	break;
	375	case BIO_C_DO_STATE_MACHINE:
	376	/* use this one to start the connection */
	377	ret=(long)acpt_state(b,data);
	378	break;
	379	case BIO_C_SET_ACCEPT:
	380	if (ptr != NULL)
	381	{
	382	if (num == 0)
	383	{
	384	b->init=1;
	385	if (data->param_addr != NULL)
	386	Free(data->param_addr);
	387	data->param_addr=BUF_strdup(ptr);
	388	}
	389	else if (num == 1)
	390	{
	391	data->accept_nbio=(ptr != NULL);
	392	}
	393	else if (num == 2)
	394	{
	395	if (data->bio_chain != NULL)
	396	BIO_free(data->bio_chain);
	397	data->bio_chain=(BIO *)ptr;
	398	}
	399	}
	400	break;
	401	case BIO_C_SET_NBIO:
	402	data->nbio=(int)num;
	403	break;
dfeab068 RE	404	case BIO_C_SET_FD:
	405	b->init=1;
	406	b->num= ((int )ptr);
	407	data->accept_sock=b->num;
	408	data->state=ACPT_S_GET_ACCEPT_SOCKET;
	409	b->shutdown=(int)num;
	410	b->init=1;
	411	break;
d02b48c6 RE	412	case BIO_C_GET_FD:
	413	if (b->init)
	414	{
	415	ip=(int *)ptr;
	416	if (ip != NULL)
	417	*ip=data->accept_sock;
dfeab068	418	ret=data->accept_sock;
d02b48c6 RE	419	}
	420	else
	421	ret= -1;
	422	break;
58964a49 RE	423	case BIO_C_GET_ACCEPT:
	424	if (b->init)
	425	{
	426	if (ptr != NULL)
	427	{
	428	pp=(char **)ptr;
	429	*pp=data->param_addr;
	430	}
	431	else
	432	ret= -1;
	433	}
	434	else
	435	ret= -1;
	436	break;
d02b48c6 RE	437	case BIO_CTRL_GET_CLOSE:
	438	ret=b->shutdown;
	439	break;
	440	case BIO_CTRL_SET_CLOSE:
	441	b->shutdown=(int)num;
	442	break;
	443	case BIO_CTRL_PENDING:
	444	case BIO_CTRL_WPENDING:
	445	ret=0;
	446	break;
	447	case BIO_CTRL_FLUSH:
	448	break;
dfeab068 RE	449	case BIO_C_SET_BIND_MODE:
	450	data->bind_mode=(int)num;
	451	break;
	452	case BIO_C_GET_BIND_MODE:
	453	ret=(long)data->bind_mode;
	454	break;
d02b48c6 RE	455	case BIO_CTRL_DUP:
	456	dbio=(BIO *)ptr;
	457	/* if (data->param_port) EAY EAY
	458	BIO_set_port(dbio,data->param_port);
	459	if (data->param_hostname)
	460	BIO_set_hostname(dbio,data->param_hostname);
	461	BIO_set_nbio(dbio,data->nbio); */
	462	break;
	463
	464	default:
	465	ret=0;
	466	break;
	467	}
	468	return(ret);
	469	}
	470
	471	static int acpt_puts(bp,str)
	472	BIO *bp;
	473	char *str;
	474	{
	475	int n,ret;
	476
	477	n=strlen(str);
	478	ret=acpt_write(bp,str,n);
	479	return(ret);
	480	}
	481
	482	BIO *BIO_new_accept(str)
	483	char *str;
	484	{
	485	BIO *ret;
	486
	487	ret=BIO_new(BIO_s_accept());
	488	if (ret == NULL) return(NULL);
	489	if (BIO_set_accept_port(ret,str))
	490	return(ret);
	491	else
	492	{
	493	BIO_free(ret);
	494	return(NULL);
	495	}
	496	}
	497
	498	#endif