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      1 /* crypto/bio/bio.h */
      2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com)
      3  * All rights reserved.
      4  *
      5  * This package is an SSL implementation written
      6  * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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 HEADER_BIO_H
     60 #define HEADER_BIO_H
     61 
     62 #include <openssl/e_os2.h>
     63 
     64 #ifndef OPENSSL_NO_FP_API
     65 # include <stdio.h>
     66 #endif
     67 #include <stdarg.h>
     68 
     69 #include <openssl/crypto.h>
     70 
     71 #ifndef OPENSSL_NO_SCTP
     72 # ifndef OPENSSL_SYS_VMS
     73 # include <stdint.h>
     74 # else
     75 # include <inttypes.h>
     76 # endif
     77 #endif
     78 
     79 #ifdef  __cplusplus
     80 extern "C" {
     81 #endif
     82 
     83 /* These are the 'types' of BIOs */
     84 #define BIO_TYPE_NONE		0
     85 #define BIO_TYPE_MEM		(1|0x0400)
     86 #define BIO_TYPE_FILE		(2|0x0400)
     87 
     88 #define BIO_TYPE_FD		(4|0x0400|0x0100)
     89 #define BIO_TYPE_SOCKET		(5|0x0400|0x0100)
     90 #define BIO_TYPE_NULL		(6|0x0400)
     91 #define BIO_TYPE_SSL		(7|0x0200)
     92 #define BIO_TYPE_MD		(8|0x0200)		/* passive filter */
     93 #define BIO_TYPE_BUFFER		(9|0x0200)		/* filter */
     94 #define BIO_TYPE_CIPHER		(10|0x0200)		/* filter */
     95 #define BIO_TYPE_BASE64		(11|0x0200)		/* filter */
     96 #define BIO_TYPE_CONNECT	(12|0x0400|0x0100)	/* socket - connect */
     97 #define BIO_TYPE_ACCEPT		(13|0x0400|0x0100)	/* socket for accept */
     98 #define BIO_TYPE_PROXY_CLIENT	(14|0x0200)		/* client proxy BIO */
     99 #define BIO_TYPE_PROXY_SERVER	(15|0x0200)		/* server proxy BIO */
    100 #define BIO_TYPE_NBIO_TEST	(16|0x0200)		/* server proxy BIO */
    101 #define BIO_TYPE_NULL_FILTER	(17|0x0200)
    102 #define BIO_TYPE_BER		(18|0x0200)		/* BER -> bin filter */
    103 #define BIO_TYPE_BIO		(19|0x0400)		/* (half a) BIO pair */
    104 #define BIO_TYPE_LINEBUFFER	(20|0x0200)		/* filter */
    105 #define BIO_TYPE_DGRAM		(21|0x0400|0x0100)
    106 #ifndef OPENSSL_NO_SCTP
    107 #define BIO_TYPE_DGRAM_SCTP	(24|0x0400|0x0100)
    108 #endif
    109 #define BIO_TYPE_ASN1 		(22|0x0200)		/* filter */
    110 #define BIO_TYPE_COMP 		(23|0x0200)		/* filter */
    111 
    112 #define BIO_TYPE_DESCRIPTOR	0x0100	/* socket, fd, connect or accept */
    113 #define BIO_TYPE_FILTER		0x0200
    114 #define BIO_TYPE_SOURCE_SINK	0x0400
    115 
    116 /* BIO_FILENAME_READ|BIO_CLOSE to open or close on free.
    117  * BIO_set_fp(in,stdin,BIO_NOCLOSE); */
    118 #define BIO_NOCLOSE		0x00
    119 #define BIO_CLOSE		0x01
    120 
    121 /* These are used in the following macros and are passed to
    122  * BIO_ctrl() */
    123 #define BIO_CTRL_RESET		1  /* opt - rewind/zero etc */
    124 #define BIO_CTRL_EOF		2  /* opt - are we at the eof */
    125 #define BIO_CTRL_INFO		3  /* opt - extra tit-bits */
    126 #define BIO_CTRL_SET		4  /* man - set the 'IO' type */
    127 #define BIO_CTRL_GET		5  /* man - get the 'IO' type */
    128 #define BIO_CTRL_PUSH		6  /* opt - internal, used to signify change */
    129 #define BIO_CTRL_POP		7  /* opt - internal, used to signify change */
    130 #define BIO_CTRL_GET_CLOSE	8  /* man - set the 'close' on free */
    131 #define BIO_CTRL_SET_CLOSE	9  /* man - set the 'close' on free */
    132 #define BIO_CTRL_PENDING	10  /* opt - is their more data buffered */
    133 #define BIO_CTRL_FLUSH		11  /* opt - 'flush' buffered output */
    134 #define BIO_CTRL_DUP		12  /* man - extra stuff for 'duped' BIO */
    135 #define BIO_CTRL_WPENDING	13  /* opt - number of bytes still to write */
    136 /* callback is int cb(BIO *bio,state,ret); */
    137 #define BIO_CTRL_SET_CALLBACK	14  /* opt - set callback function */
    138 #define BIO_CTRL_GET_CALLBACK	15  /* opt - set callback function */
    139 
    140 #define BIO_CTRL_SET_FILENAME	30	/* BIO_s_file special */
    141 
    142 /* dgram BIO stuff */
    143 #define BIO_CTRL_DGRAM_CONNECT       31  /* BIO dgram special */
    144 #define BIO_CTRL_DGRAM_SET_CONNECTED 32  /* allow for an externally
    145 					  * connected socket to be
    146 					  * passed in */
    147 #define BIO_CTRL_DGRAM_SET_RECV_TIMEOUT 33 /* setsockopt, essentially */
    148 #define BIO_CTRL_DGRAM_GET_RECV_TIMEOUT 34 /* getsockopt, essentially */
    149 #define BIO_CTRL_DGRAM_SET_SEND_TIMEOUT 35 /* setsockopt, essentially */
    150 #define BIO_CTRL_DGRAM_GET_SEND_TIMEOUT 36 /* getsockopt, essentially */
    151 
    152 #define BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP 37 /* flag whether the last */
    153 #define BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP 38 /* I/O operation tiemd out */
    154 
    155 /* #ifdef IP_MTU_DISCOVER */
    156 #define BIO_CTRL_DGRAM_MTU_DISCOVER       39 /* set DF bit on egress packets */
    157 /* #endif */
    158 
    159 #define BIO_CTRL_DGRAM_QUERY_MTU          40 /* as kernel for current MTU */
    160 #define BIO_CTRL_DGRAM_GET_FALLBACK_MTU   47
    161 #define BIO_CTRL_DGRAM_GET_MTU            41 /* get cached value for MTU */
    162 #define BIO_CTRL_DGRAM_SET_MTU            42 /* set cached value for
    163 					      * MTU. want to use this
    164 					      * if asking the kernel
    165 					      * fails */
    166 
    167 #define BIO_CTRL_DGRAM_MTU_EXCEEDED       43 /* check whether the MTU
    168 					      * was exceed in the
    169 					      * previous write
    170 					      * operation */
    171 
    172 #define BIO_CTRL_DGRAM_GET_PEER           46
    173 #define BIO_CTRL_DGRAM_SET_PEER           44 /* Destination for the data */
    174 
    175 #define BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT   45 /* Next DTLS handshake timeout to
    176                                               * adjust socket timeouts */
    177 
    178 #ifndef OPENSSL_NO_SCTP
    179 /* SCTP stuff */
    180 #define BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE	50
    181 #define BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY		51
    182 #define BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY		52
    183 #define BIO_CTRL_DGRAM_SCTP_AUTH_CCS_RCVD		53
    184 #define BIO_CTRL_DGRAM_SCTP_GET_SNDINFO		60
    185 #define BIO_CTRL_DGRAM_SCTP_SET_SNDINFO		61
    186 #define BIO_CTRL_DGRAM_SCTP_GET_RCVINFO		62
    187 #define BIO_CTRL_DGRAM_SCTP_SET_RCVINFO		63
    188 #define BIO_CTRL_DGRAM_SCTP_GET_PRINFO			64
    189 #define BIO_CTRL_DGRAM_SCTP_SET_PRINFO			65
    190 #define BIO_CTRL_DGRAM_SCTP_SAVE_SHUTDOWN		70
    191 #endif
    192 
    193 /* modifiers */
    194 #define BIO_FP_READ		0x02
    195 #define BIO_FP_WRITE		0x04
    196 #define BIO_FP_APPEND		0x08
    197 #define BIO_FP_TEXT		0x10
    198 
    199 #define BIO_FLAGS_READ		0x01
    200 #define BIO_FLAGS_WRITE		0x02
    201 #define BIO_FLAGS_IO_SPECIAL	0x04
    202 #define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL)
    203 #define BIO_FLAGS_SHOULD_RETRY	0x08
    204 #ifndef	BIO_FLAGS_UPLINK
    205 /* "UPLINK" flag denotes file descriptors provided by application.
    206    It defaults to 0, as most platforms don't require UPLINK interface. */
    207 #define	BIO_FLAGS_UPLINK	0
    208 #endif
    209 
    210 /* Used in BIO_gethostbyname() */
    211 #define BIO_GHBN_CTRL_HITS		1
    212 #define BIO_GHBN_CTRL_MISSES		2
    213 #define BIO_GHBN_CTRL_CACHE_SIZE	3
    214 #define BIO_GHBN_CTRL_GET_ENTRY		4
    215 #define BIO_GHBN_CTRL_FLUSH		5
    216 
    217 /* Mostly used in the SSL BIO */
    218 /* Not used anymore
    219  * #define BIO_FLAGS_PROTOCOL_DELAYED_READ 0x10
    220  * #define BIO_FLAGS_PROTOCOL_DELAYED_WRITE 0x20
    221  * #define BIO_FLAGS_PROTOCOL_STARTUP	0x40
    222  */
    223 
    224 #define BIO_FLAGS_BASE64_NO_NL	0x100
    225 
    226 /* This is used with memory BIOs: it means we shouldn't free up or change the
    227  * data in any way.
    228  */
    229 #define BIO_FLAGS_MEM_RDONLY	0x200
    230 
    231 typedef struct bio_st BIO;
    232 
    233 void BIO_set_flags(BIO *b, int flags);
    234 int  BIO_test_flags(const BIO *b, int flags);
    235 void BIO_clear_flags(BIO *b, int flags);
    236 
    237 #define BIO_get_flags(b) BIO_test_flags(b, ~(0x0))
    238 #define BIO_set_retry_special(b) \
    239 		BIO_set_flags(b, (BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY))
    240 #define BIO_set_retry_read(b) \
    241 		BIO_set_flags(b, (BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY))
    242 #define BIO_set_retry_write(b) \
    243 		BIO_set_flags(b, (BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY))
    244 
    245 /* These are normally used internally in BIOs */
    246 #define BIO_clear_retry_flags(b) \
    247 		BIO_clear_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
    248 #define BIO_get_retry_flags(b) \
    249 		BIO_test_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
    250 
    251 /* These should be used by the application to tell why we should retry */
    252 #define BIO_should_read(a)		BIO_test_flags(a, BIO_FLAGS_READ)
    253 #define BIO_should_write(a)		BIO_test_flags(a, BIO_FLAGS_WRITE)
    254 #define BIO_should_io_special(a)	BIO_test_flags(a, BIO_FLAGS_IO_SPECIAL)
    255 #define BIO_retry_type(a)		BIO_test_flags(a, BIO_FLAGS_RWS)
    256 #define BIO_should_retry(a)		BIO_test_flags(a, BIO_FLAGS_SHOULD_RETRY)
    257 
    258 /* The next three are used in conjunction with the
    259  * BIO_should_io_special() condition.  After this returns true,
    260  * BIO *BIO_get_retry_BIO(BIO *bio, int *reason); will walk the BIO
    261  * stack and return the 'reason' for the special and the offending BIO.
    262  * Given a BIO, BIO_get_retry_reason(bio) will return the code. */
    263 /* Returned from the SSL bio when the certificate retrieval code had an error */
    264 #define BIO_RR_SSL_X509_LOOKUP		0x01
    265 /* Returned from the connect BIO when a connect would have blocked */
    266 #define BIO_RR_CONNECT			0x02
    267 /* Returned from the accept BIO when an accept would have blocked */
    268 #define BIO_RR_ACCEPT			0x03
    269 
    270 /* These are passed by the BIO callback */
    271 #define BIO_CB_FREE	0x01
    272 #define BIO_CB_READ	0x02
    273 #define BIO_CB_WRITE	0x03
    274 #define BIO_CB_PUTS	0x04
    275 #define BIO_CB_GETS	0x05
    276 #define BIO_CB_CTRL	0x06
    277 
    278 /* The callback is called before and after the underling operation,
    279  * The BIO_CB_RETURN flag indicates if it is after the call */
    280 #define BIO_CB_RETURN	0x80
    281 #define BIO_CB_return(a) ((a)|BIO_CB_RETURN))
    282 #define BIO_cb_pre(a)	(!((a)&BIO_CB_RETURN))
    283 #define BIO_cb_post(a)	((a)&BIO_CB_RETURN)
    284 
    285 long (*BIO_get_callback(const BIO *b)) (struct bio_st *,int,const char *,int, long,long);
    286 void BIO_set_callback(BIO *b,
    287 	long (*callback)(struct bio_st *,int,const char *,int, long,long));
    288 char *BIO_get_callback_arg(const BIO *b);
    289 void BIO_set_callback_arg(BIO *b, char *arg);
    290 
    291 const char * BIO_method_name(const BIO *b);
    292 int BIO_method_type(const BIO *b);
    293 
    294 typedef void bio_info_cb(struct bio_st *, int, const char *, int, long, long);
    295 
    296 typedef struct bio_method_st
    297 	{
    298 	int type;
    299 	const char *name;
    300 	int (*bwrite)(BIO *, const char *, int);
    301 	int (*bread)(BIO *, char *, int);
    302 	int (*bputs)(BIO *, const char *);
    303 	int (*bgets)(BIO *, char *, int);
    304 	long (*ctrl)(BIO *, int, long, void *);
    305 	int (*create)(BIO *);
    306 	int (*destroy)(BIO *);
    307         long (*callback_ctrl)(BIO *, int, bio_info_cb *);
    308 	} BIO_METHOD;
    309 
    310 struct bio_st
    311 	{
    312 	BIO_METHOD *method;
    313 	/* bio, mode, argp, argi, argl, ret */
    314 	long (*callback)(struct bio_st *,int,const char *,int, long,long);
    315 	char *cb_arg; /* first argument for the callback */
    316 
    317 	int init;
    318 	int shutdown;
    319 	int flags;	/* extra storage */
    320 	int retry_reason;
    321 	int num;
    322 	void *ptr;
    323 	struct bio_st *next_bio;	/* used by filter BIOs */
    324 	struct bio_st *prev_bio;	/* used by filter BIOs */
    325 	int references;
    326 	unsigned long num_read;
    327 	unsigned long num_write;
    328 
    329 	CRYPTO_EX_DATA ex_data;
    330 	};
    331 
    332 DECLARE_STACK_OF(BIO)
    333 
    334 typedef struct bio_f_buffer_ctx_struct
    335 	{
    336 	/* Buffers are setup like this:
    337 	 *
    338 	 * <---------------------- size ----------------------->
    339 	 * +---------------------------------------------------+
    340 	 * | consumed | remaining          | free space        |
    341 	 * +---------------------------------------------------+
    342 	 * <-- off --><------- len ------->
    343 	 */
    344 
    345 	/* BIO *bio; */ /* this is now in the BIO struct */
    346 	int ibuf_size;	/* how big is the input buffer */
    347 	int obuf_size;	/* how big is the output buffer */
    348 
    349 	char *ibuf;		/* the char array */
    350 	int ibuf_len;		/* how many bytes are in it */
    351 	int ibuf_off;		/* write/read offset */
    352 
    353 	char *obuf;		/* the char array */
    354 	int obuf_len;		/* how many bytes are in it */
    355 	int obuf_off;		/* write/read offset */
    356 	} BIO_F_BUFFER_CTX;
    357 
    358 /* Prefix and suffix callback in ASN1 BIO */
    359 typedef int asn1_ps_func(BIO *b, unsigned char **pbuf, int *plen, void *parg);
    360 
    361 #ifndef OPENSSL_NO_SCTP
    362 /* SCTP parameter structs */
    363 struct bio_dgram_sctp_sndinfo
    364 	{
    365 	uint16_t snd_sid;
    366 	uint16_t snd_flags;
    367 	uint32_t snd_ppid;
    368 	uint32_t snd_context;
    369 	};
    370 
    371 struct bio_dgram_sctp_rcvinfo
    372 	{
    373 	uint16_t rcv_sid;
    374 	uint16_t rcv_ssn;
    375 	uint16_t rcv_flags;
    376 	uint32_t rcv_ppid;
    377 	uint32_t rcv_tsn;
    378 	uint32_t rcv_cumtsn;
    379 	uint32_t rcv_context;
    380 	};
    381 
    382 struct bio_dgram_sctp_prinfo
    383 	{
    384 	uint16_t pr_policy;
    385 	uint32_t pr_value;
    386 	};
    387 #endif
    388 
    389 /* connect BIO stuff */
    390 #define BIO_CONN_S_BEFORE		1
    391 #define BIO_CONN_S_GET_IP		2
    392 #define BIO_CONN_S_GET_PORT		3
    393 #define BIO_CONN_S_CREATE_SOCKET	4
    394 #define BIO_CONN_S_CONNECT		5
    395 #define BIO_CONN_S_OK			6
    396 #define BIO_CONN_S_BLOCKED_CONNECT	7
    397 #define BIO_CONN_S_NBIO			8
    398 /*#define BIO_CONN_get_param_hostname	BIO_ctrl */
    399 
    400 #define BIO_C_SET_CONNECT			100
    401 #define BIO_C_DO_STATE_MACHINE			101
    402 #define BIO_C_SET_NBIO				102
    403 #define BIO_C_SET_PROXY_PARAM			103
    404 #define BIO_C_SET_FD				104
    405 #define BIO_C_GET_FD				105
    406 #define BIO_C_SET_FILE_PTR			106
    407 #define BIO_C_GET_FILE_PTR			107
    408 #define BIO_C_SET_FILENAME			108
    409 #define BIO_C_SET_SSL				109
    410 #define BIO_C_GET_SSL				110
    411 #define BIO_C_SET_MD				111
    412 #define BIO_C_GET_MD				112
    413 #define BIO_C_GET_CIPHER_STATUS			113
    414 #define BIO_C_SET_BUF_MEM			114
    415 #define BIO_C_GET_BUF_MEM_PTR			115
    416 #define BIO_C_GET_BUFF_NUM_LINES		116
    417 #define BIO_C_SET_BUFF_SIZE			117
    418 #define BIO_C_SET_ACCEPT			118
    419 #define BIO_C_SSL_MODE				119
    420 #define BIO_C_GET_MD_CTX			120
    421 #define BIO_C_GET_PROXY_PARAM			121
    422 #define BIO_C_SET_BUFF_READ_DATA		122 /* data to read first */
    423 #define BIO_C_GET_CONNECT			123
    424 #define BIO_C_GET_ACCEPT			124
    425 #define BIO_C_SET_SSL_RENEGOTIATE_BYTES		125
    426 #define BIO_C_GET_SSL_NUM_RENEGOTIATES		126
    427 #define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT	127
    428 #define BIO_C_FILE_SEEK				128
    429 #define BIO_C_GET_CIPHER_CTX			129
    430 #define BIO_C_SET_BUF_MEM_EOF_RETURN		130/*return end of input value*/
    431 #define BIO_C_SET_BIND_MODE			131
    432 #define BIO_C_GET_BIND_MODE			132
    433 #define BIO_C_FILE_TELL				133
    434 #define BIO_C_GET_SOCKS				134
    435 #define BIO_C_SET_SOCKS				135
    436 
    437 #define BIO_C_SET_WRITE_BUF_SIZE		136/* for BIO_s_bio */
    438 #define BIO_C_GET_WRITE_BUF_SIZE		137
    439 #define BIO_C_MAKE_BIO_PAIR			138
    440 #define BIO_C_DESTROY_BIO_PAIR			139
    441 #define BIO_C_GET_WRITE_GUARANTEE		140
    442 #define BIO_C_GET_READ_REQUEST			141
    443 #define BIO_C_SHUTDOWN_WR			142
    444 #define BIO_C_NREAD0				143
    445 #define BIO_C_NREAD				144
    446 #define BIO_C_NWRITE0				145
    447 #define BIO_C_NWRITE				146
    448 #define BIO_C_RESET_READ_REQUEST		147
    449 #define BIO_C_SET_MD_CTX			148
    450 
    451 #define BIO_C_SET_PREFIX			149
    452 #define BIO_C_GET_PREFIX			150
    453 #define BIO_C_SET_SUFFIX			151
    454 #define BIO_C_GET_SUFFIX			152
    455 
    456 #define BIO_C_SET_EX_ARG			153
    457 #define BIO_C_GET_EX_ARG			154
    458 
    459 #define BIO_set_app_data(s,arg)		BIO_set_ex_data(s,0,arg)
    460 #define BIO_get_app_data(s)		BIO_get_ex_data(s,0)
    461 
    462 /* BIO_s_connect() and BIO_s_socks4a_connect() */
    463 #define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name)
    464 #define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port)
    465 #define BIO_set_conn_ip(b,ip)	  BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip)
    466 #define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port)
    467 #define BIO_get_conn_hostname(b)  BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0)
    468 #define BIO_get_conn_port(b)      BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1)
    469 #define BIO_get_conn_ip(b) 		 BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,2)
    470 #define BIO_get_conn_int_port(b) BIO_int_ctrl(b,BIO_C_GET_CONNECT,3,0)
    471 
    472 
    473 #define BIO_set_nbio(b,n)	BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL)
    474 
    475 /* BIO_s_accept_socket() */
    476 #define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name)
    477 #define BIO_get_accept_port(b)	BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0)
    478 /* #define BIO_set_nbio(b,n)	BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */
    479 #define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?(void *)"a":NULL)
    480 #define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio)
    481 
    482 #define BIO_BIND_NORMAL			0
    483 #define BIO_BIND_REUSEADDR_IF_UNUSED	1
    484 #define BIO_BIND_REUSEADDR		2
    485 #define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL)
    486 #define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL)
    487 
    488 #define BIO_do_connect(b)	BIO_do_handshake(b)
    489 #define BIO_do_accept(b)	BIO_do_handshake(b)
    490 #define BIO_do_handshake(b)	BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL)
    491 
    492 /* BIO_s_proxy_client() */
    493 #define BIO_set_url(b,url)	BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url))
    494 #define BIO_set_proxies(b,p)	BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p))
    495 /* BIO_set_nbio(b,n) */
    496 #define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s))
    497 /* BIO *BIO_get_filter_bio(BIO *bio); */
    498 #define BIO_set_proxy_cb(b,cb) BIO_callback_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(void *(*cb)()))
    499 #define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk)
    500 #define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool)
    501 
    502 #define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp)
    503 #define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p))
    504 #define BIO_get_url(b,url)	BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url))
    505 #define BIO_get_no_connect_return(b)	BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL)
    506 
    507 #define BIO_set_fd(b,fd,c)	BIO_int_ctrl(b,BIO_C_SET_FD,c,fd)
    508 #define BIO_get_fd(b,c)		BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c)
    509 
    510 #define BIO_set_fp(b,fp,c)	BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp)
    511 #define BIO_get_fp(b,fpp)	BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp)
    512 
    513 #define BIO_seek(b,ofs)	(int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL)
    514 #define BIO_tell(b)	(int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL)
    515 
    516 /* name is cast to lose const, but might be better to route through a function
    517    so we can do it safely */
    518 #ifdef CONST_STRICT
    519 /* If you are wondering why this isn't defined, its because CONST_STRICT is
    520  * purely a compile-time kludge to allow const to be checked.
    521  */
    522 int BIO_read_filename(BIO *b,const char *name);
    523 #else
    524 #define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
    525 		BIO_CLOSE|BIO_FP_READ,(char *)name)
    526 #endif
    527 #define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
    528 		BIO_CLOSE|BIO_FP_WRITE,name)
    529 #define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
    530 		BIO_CLOSE|BIO_FP_APPEND,name)
    531 #define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
    532 		BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name)
    533 
    534 /* WARNING WARNING, this ups the reference count on the read bio of the
    535  * SSL structure.  This is because the ssl read BIO is now pointed to by
    536  * the next_bio field in the bio.  So when you free the BIO, make sure
    537  * you are doing a BIO_free_all() to catch the underlying BIO. */
    538 #define BIO_set_ssl(b,ssl,c)	BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl)
    539 #define BIO_get_ssl(b,sslp)	BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp)
    540 #define BIO_set_ssl_mode(b,client)	BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL)
    541 #define BIO_set_ssl_renegotiate_bytes(b,num) \
    542 	BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL);
    543 #define BIO_get_num_renegotiates(b) \
    544 	BIO_ctrl(b,BIO_C_GET_SSL_NUM_RENEGOTIATES,0,NULL);
    545 #define BIO_set_ssl_renegotiate_timeout(b,seconds) \
    546 	BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL);
    547 
    548 /* defined in evp.h */
    549 /* #define BIO_set_md(b,md)	BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */
    550 
    551 #define BIO_get_mem_data(b,pp)	BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp)
    552 #define BIO_set_mem_buf(b,bm,c)	BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm)
    553 #define BIO_get_mem_ptr(b,pp)	BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp)
    554 #define BIO_set_mem_eof_return(b,v) \
    555 				BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL)
    556 
    557 /* For the BIO_f_buffer() type */
    558 #define BIO_get_buffer_num_lines(b)	BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL)
    559 #define BIO_set_buffer_size(b,size)	BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL)
    560 #define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0)
    561 #define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1)
    562 #define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf)
    563 
    564 /* Don't use the next one unless you know what you are doing :-) */
    565 #define BIO_dup_state(b,ret)	BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret))
    566 
    567 #define BIO_reset(b)		(int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL)
    568 #define BIO_eof(b)		(int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL)
    569 #define BIO_set_close(b,c)	(int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL)
    570 #define BIO_get_close(b)	(int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL)
    571 #define BIO_pending(b)		(int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL)
    572 #define BIO_wpending(b)		(int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL)
    573 /* ...pending macros have inappropriate return type */
    574 size_t BIO_ctrl_pending(BIO *b);
    575 size_t BIO_ctrl_wpending(BIO *b);
    576 #define BIO_flush(b)		(int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL)
    577 #define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0, \
    578 						   cbp)
    579 #define BIO_set_info_callback(b,cb) (int)BIO_callback_ctrl(b,BIO_CTRL_SET_CALLBACK,cb)
    580 
    581 /* For the BIO_f_buffer() type */
    582 #define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL)
    583 
    584 /* For BIO_s_bio() */
    585 #define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL)
    586 #define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL)
    587 #define BIO_make_bio_pair(b1,b2)   (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2)
    588 #define BIO_destroy_bio_pair(b)    (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL)
    589 #define BIO_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL)
    590 /* macros with inappropriate type -- but ...pending macros use int too: */
    591 #define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL)
    592 #define BIO_get_read_request(b)    (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL)
    593 size_t BIO_ctrl_get_write_guarantee(BIO *b);
    594 size_t BIO_ctrl_get_read_request(BIO *b);
    595 int BIO_ctrl_reset_read_request(BIO *b);
    596 
    597 /* ctrl macros for dgram */
    598 #define BIO_ctrl_dgram_connect(b,peer)  \
    599                      (int)BIO_ctrl(b,BIO_CTRL_DGRAM_CONNECT,0, (char *)peer)
    600 #define BIO_ctrl_set_connected(b, state, peer) \
    601          (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_CONNECTED, state, (char *)peer)
    602 #define BIO_dgram_recv_timedout(b) \
    603          (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP, 0, NULL)
    604 #define BIO_dgram_send_timedout(b) \
    605          (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP, 0, NULL)
    606 #define BIO_dgram_get_peer(b,peer) \
    607          (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_PEER, 0, (char *)peer)
    608 #define BIO_dgram_set_peer(b,peer) \
    609          (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, (char *)peer)
    610 
    611 /* These two aren't currently implemented */
    612 /* int BIO_get_ex_num(BIO *bio); */
    613 /* void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)()); */
    614 int BIO_set_ex_data(BIO *bio,int idx,void *data);
    615 void *BIO_get_ex_data(BIO *bio,int idx);
    616 int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
    617 	CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
    618 unsigned long BIO_number_read(BIO *bio);
    619 unsigned long BIO_number_written(BIO *bio);
    620 
    621 /* For BIO_f_asn1() */
    622 int BIO_asn1_set_prefix(BIO *b, asn1_ps_func *prefix,
    623 					asn1_ps_func *prefix_free);
    624 int BIO_asn1_get_prefix(BIO *b, asn1_ps_func **pprefix,
    625 					asn1_ps_func **pprefix_free);
    626 int BIO_asn1_set_suffix(BIO *b, asn1_ps_func *suffix,
    627 					asn1_ps_func *suffix_free);
    628 int BIO_asn1_get_suffix(BIO *b, asn1_ps_func **psuffix,
    629 					asn1_ps_func **psuffix_free);
    630 
    631 # ifndef OPENSSL_NO_FP_API
    632 BIO_METHOD *BIO_s_file(void );
    633 BIO *BIO_new_file(const char *filename, const char *mode);
    634 BIO *BIO_new_fp(FILE *stream, int close_flag);
    635 # define BIO_s_file_internal	BIO_s_file
    636 # endif
    637 BIO *	BIO_new(BIO_METHOD *type);
    638 int	BIO_set(BIO *a,BIO_METHOD *type);
    639 int	BIO_free(BIO *a);
    640 void	BIO_vfree(BIO *a);
    641 int	BIO_read(BIO *b, void *data, int len);
    642 int	BIO_gets(BIO *bp,char *buf, int size);
    643 int	BIO_write(BIO *b, const void *data, int len);
    644 int	BIO_puts(BIO *bp,const char *buf);
    645 int	BIO_indent(BIO *b,int indent,int max);
    646 long	BIO_ctrl(BIO *bp,int cmd,long larg,void *parg);
    647 long BIO_callback_ctrl(BIO *b, int cmd, void (*fp)(struct bio_st *, int, const char *, int, long, long));
    648 char *	BIO_ptr_ctrl(BIO *bp,int cmd,long larg);
    649 long	BIO_int_ctrl(BIO *bp,int cmd,long larg,int iarg);
    650 BIO *	BIO_push(BIO *b,BIO *append);
    651 BIO *	BIO_pop(BIO *b);
    652 void	BIO_free_all(BIO *a);
    653 BIO *	BIO_find_type(BIO *b,int bio_type);
    654 BIO *	BIO_next(BIO *b);
    655 BIO *	BIO_get_retry_BIO(BIO *bio, int *reason);
    656 int	BIO_get_retry_reason(BIO *bio);
    657 BIO *	BIO_dup_chain(BIO *in);
    658 
    659 int BIO_nread0(BIO *bio, char **buf);
    660 int BIO_nread(BIO *bio, char **buf, int num);
    661 int BIO_nwrite0(BIO *bio, char **buf);
    662 int BIO_nwrite(BIO *bio, char **buf, int num);
    663 
    664 long BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi,
    665 	long argl,long ret);
    666 
    667 BIO_METHOD *BIO_s_mem(void);
    668 BIO *BIO_new_mem_buf(void *buf, int len);
    669 BIO_METHOD *BIO_s_socket(void);
    670 BIO_METHOD *BIO_s_connect(void);
    671 BIO_METHOD *BIO_s_accept(void);
    672 BIO_METHOD *BIO_s_fd(void);
    673 #ifndef OPENSSL_SYS_OS2
    674 BIO_METHOD *BIO_s_log(void);
    675 #endif
    676 BIO_METHOD *BIO_s_bio(void);
    677 BIO_METHOD *BIO_s_null(void);
    678 BIO_METHOD *BIO_f_null(void);
    679 BIO_METHOD *BIO_f_buffer(void);
    680 #ifdef OPENSSL_SYS_VMS
    681 BIO_METHOD *BIO_f_linebuffer(void);
    682 #endif
    683 BIO_METHOD *BIO_f_nbio_test(void);
    684 #ifndef OPENSSL_NO_DGRAM
    685 BIO_METHOD *BIO_s_datagram(void);
    686 #ifndef OPENSSL_NO_SCTP
    687 BIO_METHOD *BIO_s_datagram_sctp(void);
    688 #endif
    689 #endif
    690 
    691 /* BIO_METHOD *BIO_f_ber(void); */
    692 
    693 int BIO_sock_should_retry(int i);
    694 int BIO_sock_non_fatal_error(int error);
    695 int BIO_dgram_non_fatal_error(int error);
    696 
    697 int BIO_fd_should_retry(int i);
    698 int BIO_fd_non_fatal_error(int error);
    699 int BIO_dump_cb(int (*cb)(const void *data, size_t len, void *u),
    700 		void *u, const char *s, int len);
    701 int BIO_dump_indent_cb(int (*cb)(const void *data, size_t len, void *u),
    702 		       void *u, const char *s, int len, int indent);
    703 int BIO_dump(BIO *b,const char *bytes,int len);
    704 int BIO_dump_indent(BIO *b,const char *bytes,int len,int indent);
    705 #ifndef OPENSSL_NO_FP_API
    706 int BIO_dump_fp(FILE *fp, const char *s, int len);
    707 int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent);
    708 #endif
    709 struct hostent *BIO_gethostbyname(const char *name);
    710 /* We might want a thread-safe interface too:
    711  * struct hostent *BIO_gethostbyname_r(const char *name,
    712  *     struct hostent *result, void *buffer, size_t buflen);
    713  * or something similar (caller allocates a struct hostent,
    714  * pointed to by "result", and additional buffer space for the various
    715  * substructures; if the buffer does not suffice, NULL is returned
    716  * and an appropriate error code is set).
    717  */
    718 int BIO_sock_error(int sock);
    719 int BIO_socket_ioctl(int fd, long type, void *arg);
    720 int BIO_socket_nbio(int fd,int mode);
    721 int BIO_get_port(const char *str, unsigned short *port_ptr);
    722 int BIO_get_host_ip(const char *str, unsigned char *ip);
    723 int BIO_get_accept_socket(char *host_port,int mode);
    724 int BIO_accept(int sock,char **ip_port);
    725 int BIO_sock_init(void );
    726 void BIO_sock_cleanup(void);
    727 int BIO_set_tcp_ndelay(int sock,int turn_on);
    728 
    729 BIO *BIO_new_socket(int sock, int close_flag);
    730 BIO *BIO_new_dgram(int fd, int close_flag);
    731 #ifndef OPENSSL_NO_SCTP
    732 BIO *BIO_new_dgram_sctp(int fd, int close_flag);
    733 int BIO_dgram_is_sctp(BIO *bio);
    734 int BIO_dgram_sctp_notification_cb(BIO *b,
    735                                    void (*handle_notifications)(BIO *bio, void *context, void *buf),
    736                                    void *context);
    737 int BIO_dgram_sctp_wait_for_dry(BIO *b);
    738 int BIO_dgram_sctp_msg_waiting(BIO *b);
    739 #endif
    740 BIO *BIO_new_fd(int fd, int close_flag);
    741 BIO *BIO_new_connect(char *host_port);
    742 BIO *BIO_new_accept(char *host_port);
    743 
    744 int BIO_new_bio_pair(BIO **bio1, size_t writebuf1,
    745 	BIO **bio2, size_t writebuf2);
    746 /* If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints.
    747  * Otherwise returns 0 and sets *bio1 and *bio2 to NULL.
    748  * Size 0 uses default value.
    749  */
    750 
    751 void BIO_copy_next_retry(BIO *b);
    752 
    753 /*long BIO_ghbn_ctrl(int cmd,int iarg,char *parg);*/
    754 
    755 #ifdef __GNUC__
    756 #  define __bio_h__attr__ __attribute__
    757 #else
    758 #  define __bio_h__attr__(x)
    759 #endif
    760 int BIO_printf(BIO *bio, const char *format, ...)
    761 	__bio_h__attr__((__format__(__printf__,2,3)));
    762 int BIO_vprintf(BIO *bio, const char *format, va_list args)
    763 	__bio_h__attr__((__format__(__printf__,2,0)));
    764 int BIO_snprintf(char *buf, size_t n, const char *format, ...)
    765 	__bio_h__attr__((__format__(__printf__,3,4)));
    766 int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args)
    767 	__bio_h__attr__((__format__(__printf__,3,0)));
    768 #undef __bio_h__attr__
    769 
    770 /* BEGIN ERROR CODES */
    771 /* The following lines are auto generated by the script mkerr.pl. Any changes
    772  * made after this point may be overwritten when the script is next run.
    773  */
    774 void ERR_load_BIO_strings(void);
    775 
    776 /* Error codes for the BIO functions. */
    777 
    778 /* Function codes. */
    779 #define BIO_F_ACPT_STATE				 100
    780 #define BIO_F_BIO_ACCEPT				 101
    781 #define BIO_F_BIO_BER_GET_HEADER			 102
    782 #define BIO_F_BIO_CALLBACK_CTRL				 131
    783 #define BIO_F_BIO_CTRL					 103
    784 #define BIO_F_BIO_GETHOSTBYNAME				 120
    785 #define BIO_F_BIO_GETS					 104
    786 #define BIO_F_BIO_GET_ACCEPT_SOCKET			 105
    787 #define BIO_F_BIO_GET_HOST_IP				 106
    788 #define BIO_F_BIO_GET_PORT				 107
    789 #define BIO_F_BIO_MAKE_PAIR				 121
    790 #define BIO_F_BIO_NEW					 108
    791 #define BIO_F_BIO_NEW_FILE				 109
    792 #define BIO_F_BIO_NEW_MEM_BUF				 126
    793 #define BIO_F_BIO_NREAD					 123
    794 #define BIO_F_BIO_NREAD0				 124
    795 #define BIO_F_BIO_NWRITE				 125
    796 #define BIO_F_BIO_NWRITE0				 122
    797 #define BIO_F_BIO_PUTS					 110
    798 #define BIO_F_BIO_READ					 111
    799 #define BIO_F_BIO_SOCK_INIT				 112
    800 #define BIO_F_BIO_WRITE					 113
    801 #define BIO_F_BUFFER_CTRL				 114
    802 #define BIO_F_CONN_CTRL					 127
    803 #define BIO_F_CONN_STATE				 115
    804 #define BIO_F_DGRAM_SCTP_READ				 132
    805 #define BIO_F_FILE_CTRL					 116
    806 #define BIO_F_FILE_READ					 130
    807 #define BIO_F_LINEBUFFER_CTRL				 129
    808 #define BIO_F_MEM_READ					 128
    809 #define BIO_F_MEM_WRITE					 117
    810 #define BIO_F_SSL_NEW					 118
    811 #define BIO_F_WSASTARTUP				 119
    812 
    813 /* Reason codes. */
    814 #define BIO_R_ACCEPT_ERROR				 100
    815 #define BIO_R_BAD_FOPEN_MODE				 101
    816 #define BIO_R_BAD_HOSTNAME_LOOKUP			 102
    817 #define BIO_R_BROKEN_PIPE				 124
    818 #define BIO_R_CONNECT_ERROR				 103
    819 #define BIO_R_EOF_ON_MEMORY_BIO				 127
    820 #define BIO_R_ERROR_SETTING_NBIO			 104
    821 #define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET	 105
    822 #define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET	 106
    823 #define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET		 107
    824 #define BIO_R_INVALID_ARGUMENT				 125
    825 #define BIO_R_INVALID_IP_ADDRESS			 108
    826 #define BIO_R_IN_USE					 123
    827 #define BIO_R_KEEPALIVE					 109
    828 #define BIO_R_NBIO_CONNECT_ERROR			 110
    829 #define BIO_R_NO_ACCEPT_PORT_SPECIFIED			 111
    830 #define BIO_R_NO_HOSTNAME_SPECIFIED			 112
    831 #define BIO_R_NO_PORT_DEFINED				 113
    832 #define BIO_R_NO_PORT_SPECIFIED				 114
    833 #define BIO_R_NO_SUCH_FILE				 128
    834 #define BIO_R_NULL_PARAMETER				 115
    835 #define BIO_R_TAG_MISMATCH				 116
    836 #define BIO_R_UNABLE_TO_BIND_SOCKET			 117
    837 #define BIO_R_UNABLE_TO_CREATE_SOCKET			 118
    838 #define BIO_R_UNABLE_TO_LISTEN_SOCKET			 119
    839 #define BIO_R_UNINITIALIZED				 120
    840 #define BIO_R_UNSUPPORTED_METHOD			 121
    841 #define BIO_R_WRITE_TO_READ_ONLY_BIO			 126
    842 #define BIO_R_WSASTARTUP				 122
    843 
    844 #ifdef  __cplusplus
    845 }
    846 #endif
    847 #endif
    848