1/* 2 * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved. 3 * 4 * The contents of this file constitute Original Code as defined in and are 5 * subject to the Apple Public Source License Version 1.2 (the 'License'). 6 * You may not use this file except in compliance with the License. Please obtain 7 * a copy of the License at http://www.apple.com/publicsource and read it before 8 * using this file. 9 * 10 * This Original Code and all software distributed under the License are 11 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS 12 * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT 13 * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 14 * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the 15 * specific language governing rights and limitations under the License. 16 */ 17 18 19/* crypto/bio/bio.h */ 20/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 21 * All rights reserved. 22 * 23 * This package is an SSL implementation written 24 * by Eric Young (eay@cryptsoft.com). 25 * The implementation was written so as to conform with Netscapes SSL. 26 * 27 * This library is free for commercial and non-commercial use as long as 28 * the following conditions are aheared to. The following conditions 29 * apply to all code found in this distribution, be it the RC4, RSA, 30 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 31 * included with this distribution is covered by the same copyright terms 32 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 33 * 34 * Copyright remains Eric Young's, and as such any Copyright notices in 35 * the code are not to be removed. 36 * If this package is used in a product, Eric Young should be given attribution 37 * as the author of the parts of the library used. 38 * This can be in the form of a textual message at program startup or 39 * in documentation (online or textual) provided with the package. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. All advertising materials mentioning features or use of this software 50 * must display the following acknowledgement: 51 * "This product includes cryptographic software written by 52 * Eric Young (eay@cryptsoft.com)" 53 * The word 'cryptographic' can be left out if the rouines from the library 54 * being used are not cryptographic related :-). 55 * 4. If you include any Windows specific code (or a derivative thereof) from 56 * the apps directory (application code) you must include an acknowledgement: 57 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 58 * 59 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 62 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 * 71 * The licence and distribution terms for any publically available version or 72 * derivative of this code cannot be changed. i.e. this code cannot simply be 73 * copied and put under another distribution licence 74 * [including the GNU Public Licence.] 75 */ 76 77#ifndef HEADER_BIO_H 78#define HEADER_BIO_H 79 80#ifdef __cplusplus 81extern "C" { 82#endif 83 84#include <stdio.h> 85#include <stdlib.h> 86#include <openssl/crypto.h> 87 88/* These are the 'types' of BIOs */ 89#define BIO_TYPE_NONE 0 90#define BIO_TYPE_MEM (1|0x0400) 91#define BIO_TYPE_FILE (2|0x0400) 92 93#define BIO_TYPE_FD (4|0x0400|0x0100) 94#define BIO_TYPE_SOCKET (5|0x0400|0x0100) 95#define BIO_TYPE_NULL (6|0x0400) 96#define BIO_TYPE_SSL (7|0x0200) 97#define BIO_TYPE_MD (8|0x0200) /* passive filter */ 98#define BIO_TYPE_BUFFER (9|0x0200) /* filter */ 99#define BIO_TYPE_CIPHER (10|0x0200) /* filter */ 100#define BIO_TYPE_BASE64 (11|0x0200) /* filter */ 101#define BIO_TYPE_CONNECT (12|0x0400|0x0100) /* socket - connect */ 102#define BIO_TYPE_ACCEPT (13|0x0400|0x0100) /* socket for accept */ 103#define BIO_TYPE_PROXY_CLIENT (14|0x0200) /* client proxy BIO */ 104#define BIO_TYPE_PROXY_SERVER (15|0x0200) /* server proxy BIO */ 105#define BIO_TYPE_NBIO_TEST (16|0x0200) /* server proxy BIO */ 106#define BIO_TYPE_NULL_FILTER (17|0x0200) 107#define BIO_TYPE_BER (18|0x0200) /* BER -> bin filter */ 108#define BIO_TYPE_BIO (19|0x0400) /* (half a) BIO pair */ 109 110#define BIO_TYPE_DESCRIPTOR 0x0100 /* socket, fd, connect or accept */ 111#define BIO_TYPE_FILTER 0x0200 112#define BIO_TYPE_SOURCE_SINK 0x0400 113 114/* BIO_FILENAME_READ|BIO_CLOSE to open or close on free. 115 * BIO_set_fp(in,stdin,BIO_NOCLOSE); */ 116#define BIO_NOCLOSE 0x00 117#define BIO_CLOSE 0x01 118 119/* These are used in the following macros and are passed to 120 * BIO_ctrl() */ 121#define BIO_CTRL_RESET 1 /* opt - rewind/zero etc */ 122#define BIO_CTRL_EOF 2 /* opt - are we at the eof */ 123#define BIO_CTRL_INFO 3 /* opt - extra tit-bits */ 124#define BIO_CTRL_SET 4 /* man - set the 'IO' type */ 125#define BIO_CTRL_GET 5 /* man - get the 'IO' type */ 126#define BIO_CTRL_PUSH 6 /* opt - internal, used to signify change */ 127#define BIO_CTRL_POP 7 /* opt - internal, used to signify change */ 128#define BIO_CTRL_GET_CLOSE 8 /* man - set the 'close' on free */ 129#define BIO_CTRL_SET_CLOSE 9 /* man - set the 'close' on free */ 130#define BIO_CTRL_PENDING 10 /* opt - is their more data buffered */ 131#define BIO_CTRL_FLUSH 11 /* opt - 'flush' buffered output */ 132#define BIO_CTRL_DUP 12 /* man - extra stuff for 'duped' BIO */ 133#define BIO_CTRL_WPENDING 13 /* opt - number of bytes still to write */ 134/* callback is int cb(BIO *bio,state,ret); */ 135#define BIO_CTRL_SET_CALLBACK 14 /* opt - set callback function */ 136#define BIO_CTRL_GET_CALLBACK 15 /* opt - set callback function */ 137 138#define BIO_CTRL_SET_FILENAME 30 /* BIO_s_file special */ 139 140/* modifiers */ 141#define BIO_FP_READ 0x02 142#define BIO_FP_WRITE 0x04 143#define BIO_FP_APPEND 0x08 144#define BIO_FP_TEXT 0x10 145 146#define BIO_FLAGS_READ 0x01 147#define BIO_FLAGS_WRITE 0x02 148#define BIO_FLAGS_IO_SPECIAL 0x04 149#define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL) 150#define BIO_FLAGS_SHOULD_RETRY 0x08 151 152/* Used in BIO_gethostbyname() */ 153#define BIO_GHBN_CTRL_HITS 1 154#define BIO_GHBN_CTRL_MISSES 2 155#define BIO_GHBN_CTRL_CACHE_SIZE 3 156#define BIO_GHBN_CTRL_GET_ENTRY 4 157#define BIO_GHBN_CTRL_FLUSH 5 158 159/* Mostly used in the SSL BIO */ 160/* Not used anymore 161 * #define BIO_FLAGS_PROTOCOL_DELAYED_READ 0x10 162 * #define BIO_FLAGS_PROTOCOL_DELAYED_WRITE 0x20 163 * #define BIO_FLAGS_PROTOCOL_STARTUP 0x40 164 */ 165 166#define BIO_FLAGS_BASE64_NO_NL 0x100 167 168/* This is used with memory BIOs: it means we shouldn't free up or change the 169 * data in any way. 170 */ 171#define BIO_FLAGS_MEM_RDONLY 0x200 172 173#define BIO_set_flags(b,f) ((b)->flags|=(f)) 174#define BIO_get_flags(b) ((b)->flags) 175#define BIO_set_retry_special(b) \ 176 ((b)->flags|=(BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY)) 177#define BIO_set_retry_read(b) \ 178 ((b)->flags|=(BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY)) 179#define BIO_set_retry_write(b) \ 180 ((b)->flags|=(BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY)) 181 182/* These are normally used internally in BIOs */ 183#define BIO_clear_flags(b,f) ((b)->flags&= ~(f)) 184#define BIO_clear_retry_flags(b) \ 185 ((b)->flags&= ~(BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY)) 186#define BIO_get_retry_flags(b) \ 187 ((b)->flags&(BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY)) 188 189/* These should be used by the application to tell why we should retry */ 190#define BIO_should_read(a) ((a)->flags & BIO_FLAGS_READ) 191#define BIO_should_write(a) ((a)->flags & BIO_FLAGS_WRITE) 192#define BIO_should_io_special(a) ((a)->flags & BIO_FLAGS_IO_SPECIAL) 193#define BIO_retry_type(a) ((a)->flags & BIO_FLAGS_RWS) 194#define BIO_should_retry(a) ((a)->flags & BIO_FLAGS_SHOULD_RETRY) 195 196/* The next two are used in conjunction with the 197 * BIO_should_io_special() condition. After this returns true, 198 * BIO *BIO_get_retry_BIO(BIO *bio, int *reason); will walk the BIO 199 * stack and return the 'reason' for the special and the offending BIO. 200 * Given a BIO, BIO_get_retry_reason(bio) will return the code. */ 201/* Returned from the SSL bio when the certificate retrieval code had an error */ 202#define BIO_RR_SSL_X509_LOOKUP 0x01 203/* Returned from the connect BIO when a connect would have blocked */ 204#define BIO_RR_CONNECT 0x02 205 206/* These are passed by the BIO callback */ 207#define BIO_CB_FREE 0x01 208#define BIO_CB_READ 0x02 209#define BIO_CB_WRITE 0x03 210#define BIO_CB_PUTS 0x04 211#define BIO_CB_GETS 0x05 212#define BIO_CB_CTRL 0x06 213 214/* The callback is called before and after the underling operation, 215 * The BIO_CB_RETURN flag indicates if it is after the call */ 216#define BIO_CB_RETURN 0x80 217#define BIO_CB_return(a) ((a)|BIO_CB_RETURN)) 218#define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN)) 219#define BIO_cb_post(a) ((a)&BIO_CB_RETURN) 220 221#define BIO_set_callback(b,cb) ((b)->callback=(cb)) 222#define BIO_set_callback_arg(b,arg) ((b)->cb_arg=(char *)(arg)) 223#define BIO_get_callback_arg(b) ((b)->cb_arg) 224#define BIO_get_callback(b) ((b)->callback) 225#define BIO_method_name(b) ((b)->method->name) 226#define BIO_method_type(b) ((b)->method->type) 227 228#ifndef WIN16 229typedef struct bio_method_st 230 { 231 int type; 232 const char *name; 233 int (*bwrite)(); 234 int (*bread)(); 235 int (*bputs)(); 236 int (*bgets)(); 237 long (*ctrl)(); 238 int (*create)(); 239 int (*destroy)(); 240 long (*callback_ctrl)(); 241 } BIO_METHOD; 242#else 243typedef struct bio_method_st 244 { 245 int type; 246 const char *name; 247 int (_far *bwrite)(); 248 int (_far *bread)(); 249 int (_far *bputs)(); 250 int (_far *bgets)(); 251 long (_far *ctrl)(); 252 int (_far *create)(); 253 int (_far *destroy)(); 254 long (_fat *callback_ctrl)(); 255 } BIO_METHOD; 256#endif 257 258typedef struct bio_st 259 { 260 const BIO_METHOD *method; 261 /* bio, mode, argp, argi, argl, ret */ 262 long (*callback)(struct bio_st *,int,const char *,int, long,long); 263 char *cb_arg; /* first argument for the callback */ 264 265 int init; 266 int shutdown; 267 int flags; /* extra storage */ 268 int retry_reason; 269 int num; 270 void *ptr; 271 struct bio_st *next_bio; /* used by filter BIOs */ 272 struct bio_st *prev_bio; /* used by filter BIOs */ 273 int references; 274 unsigned long num_read; 275 unsigned long num_write; 276 277 CRYPTO_EX_DATA ex_data; 278 } BIO; 279 280typedef struct bio_f_buffer_ctx_struct 281 { 282 /* BIO *bio; */ /* this is now in the BIO struct */ 283 int ibuf_size; /* how big is the input buffer */ 284 int obuf_size; /* how big is the output buffer */ 285 286 char *ibuf; /* the char array */ 287 int ibuf_len; /* how many bytes are in it */ 288 int ibuf_off; /* write/read offset */ 289 290 char *obuf; /* the char array */ 291 int obuf_len; /* how many bytes are in it */ 292 int obuf_off; /* write/read offset */ 293 } BIO_F_BUFFER_CTX; 294 295/* connect BIO stuff */ 296#define BIO_CONN_S_BEFORE 1 297#define BIO_CONN_S_GET_IP 2 298#define BIO_CONN_S_GET_PORT 3 299#define BIO_CONN_S_CREATE_SOCKET 4 300#define BIO_CONN_S_CONNECT 5 301#define BIO_CONN_S_OK 6 302#define BIO_CONN_S_BLOCKED_CONNECT 7 303#define BIO_CONN_S_NBIO 8 304/*#define BIO_CONN_get_param_hostname BIO_ctrl */ 305 306#define BIO_C_SET_CONNECT 100 307#define BIO_C_DO_STATE_MACHINE 101 308#define BIO_C_SET_NBIO 102 309#define BIO_C_SET_PROXY_PARAM 103 310#define BIO_C_SET_FD 104 311#define BIO_C_GET_FD 105 312#define BIO_C_SET_FILE_PTR 106 313#define BIO_C_GET_FILE_PTR 107 314#define BIO_C_SET_FILENAME 108 315#define BIO_C_SET_SSL 109 316#define BIO_C_GET_SSL 110 317#define BIO_C_SET_MD 111 318#define BIO_C_GET_MD 112 319#define BIO_C_GET_CIPHER_STATUS 113 320#define BIO_C_SET_BUF_MEM 114 321#define BIO_C_GET_BUF_MEM_PTR 115 322#define BIO_C_GET_BUFF_NUM_LINES 116 323#define BIO_C_SET_BUFF_SIZE 117 324#define BIO_C_SET_ACCEPT 118 325#define BIO_C_SSL_MODE 119 326#define BIO_C_GET_MD_CTX 120 327#define BIO_C_GET_PROXY_PARAM 121 328#define BIO_C_SET_BUFF_READ_DATA 122 /* data to read first */ 329#define BIO_C_GET_CONNECT 123 330#define BIO_C_GET_ACCEPT 124 331#define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125 332#define BIO_C_GET_SSL_NUM_RENEGOTIATES 126 333#define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127 334#define BIO_C_FILE_SEEK 128 335#define BIO_C_GET_CIPHER_CTX 129 336#define BIO_C_SET_BUF_MEM_EOF_RETURN 130/*return end of input value*/ 337#define BIO_C_SET_BIND_MODE 131 338#define BIO_C_GET_BIND_MODE 132 339#define BIO_C_FILE_TELL 133 340#define BIO_C_GET_SOCKS 134 341#define BIO_C_SET_SOCKS 135 342 343#define BIO_C_SET_WRITE_BUF_SIZE 136/* for BIO_s_bio */ 344#define BIO_C_GET_WRITE_BUF_SIZE 137 345#define BIO_C_MAKE_BIO_PAIR 138 346#define BIO_C_DESTROY_BIO_PAIR 139 347#define BIO_C_GET_WRITE_GUARANTEE 140 348#define BIO_C_GET_READ_REQUEST 141 349#define BIO_C_SHUTDOWN_WR 142 350#define BIO_C_NREAD0 143 351#define BIO_C_NREAD 144 352#define BIO_C_NWRITE0 145 353#define BIO_C_NWRITE 146 354#define BIO_C_RESET_READ_REQUEST 147 355 356 357#define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,arg) 358#define BIO_get_app_data(s) BIO_get_ex_data(s,0) 359 360/* BIO_s_connect() and BIO_s_socks4a_connect() */ 361#define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name) 362#define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port) 363#define BIO_set_conn_ip(b,ip) BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip) 364#define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port) 365#define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0) 366#define BIO_get_conn_port(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1) 367#define BIO_get_conn_ip(b,ip) BIO_ptr_ctrl(b,BIO_C_SET_CONNECT,2) 368#define BIO_get_conn_int_port(b,port) BIO_int_ctrl(b,BIO_C_SET_CONNECT,3,port) 369 370 371#define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) 372 373/* BIO_s_accept_socket() */ 374#define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name) 375#define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0) 376/* #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */ 377#define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?"a":NULL) 378#define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio) 379 380#define BIO_BIND_NORMAL 0 381#define BIO_BIND_REUSEADDR_IF_UNUSED 1 382#define BIO_BIND_REUSEADDR 2 383#define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL) 384#define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL) 385 386#define BIO_do_connect(b) BIO_do_handshake(b) 387#define BIO_do_accept(b) BIO_do_handshake(b) 388#define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL) 389 390/* BIO_s_proxy_client() */ 391#define BIO_set_url(b,url) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url)) 392#define BIO_set_proxies(b,p) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p)) 393/* BIO_set_nbio(b,n) */ 394#define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s)) 395/* BIO *BIO_get_filter_bio(BIO *bio); */ 396#define BIO_set_proxy_cb(b,cb) BIO_callback_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(void *(*cb)())) 397#define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk) 398#define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool) 399 400#define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp) 401#define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p)) 402#define BIO_get_url(b,url) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url)) 403#define BIO_get_no_connect_return(b) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL) 404 405#define BIO_set_fd(b,fd,c) BIO_int_ctrl(b,BIO_C_SET_FD,c,fd) 406#define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c) 407 408#define BIO_set_fp(b,fp,c) BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp) 409#define BIO_get_fp(b,fpp) BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp) 410 411#define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL) 412#define BIO_tell(b) (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL) 413 414/* name is cast to lose const, but might be better to route through a function 415 so we can do it safely */ 416#ifdef CONST_STRICT 417/* If you are wondering why this isn't defined, its because CONST_STRICT is 418 * purely a compile-time kludge to allow const to be checked. 419 */ 420int BIO_read_filename(BIO *b,const char *name); 421#else 422#define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 423 BIO_CLOSE|BIO_FP_READ,(char *)name) 424#endif 425#define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 426 BIO_CLOSE|BIO_FP_WRITE,name) 427#define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 428 BIO_CLOSE|BIO_FP_APPEND,name) 429#define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 430 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name) 431 432/* WARNING WARNING, this ups the reference count on the read bio of the 433 * SSL structure. This is because the ssl read BIO is now pointed to by 434 * the next_bio field in the bio. So when you free the BIO, make sure 435 * you are doing a BIO_free_all() to catch the underlying BIO. */ 436#define BIO_set_ssl(b,ssl,c) BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl) 437#define BIO_get_ssl(b,sslp) BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp) 438#define BIO_set_ssl_mode(b,client) BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL) 439#define BIO_set_ssl_renegotiate_bytes(b,num) \ 440 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL); 441#define BIO_get_num_renegotiates(b) \ 442 BIO_ctrl(b,BIO_C_SET_SSL_NUM_RENEGOTIATES,0,NULL); 443#define BIO_set_ssl_renegotiate_timeout(b,seconds) \ 444 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL); 445 446/* defined in evp.h */ 447/* #define BIO_set_md(b,md) BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */ 448 449#define BIO_get_mem_data(b,pp) BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp) 450#define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm) 451#define BIO_get_mem_ptr(b,pp) BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp) 452#define BIO_set_mem_eof_return(b,v) \ 453 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL) 454 455/* For the BIO_f_buffer() type */ 456#define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL) 457#define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL) 458#define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0) 459#define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1) 460#define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf) 461 462/* Don't use the next one unless you know what you are doing :-) */ 463#define BIO_dup_state(b,ret) BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret)) 464 465#define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL) 466#define BIO_eof(b) (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL) 467#define BIO_set_close(b,c) (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL) 468#define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL) 469#define BIO_pending(b) (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL) 470#define BIO_wpending(b) (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL) 471/* ...pending macros have inappropriate return type */ 472size_t BIO_ctrl_pending(BIO *b); 473size_t BIO_ctrl_wpending(BIO *b); 474#define BIO_flush(b) (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL) 475#define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0,(void (**)())(cbp)) 476#define BIO_set_info_callback(b,cb) (int)BIO_callback_ctrl(b,BIO_CTRL_SET_CALLBACK,(void (*)())(cb)) 477 478/* For the BIO_f_buffer() type */ 479#define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL) 480 481/* For BIO_s_bio() */ 482#define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL) 483#define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL) 484#define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2) 485#define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL) 486/* macros with inappropriate type -- but ...pending macros use int too: */ 487#define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL) 488#define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL) 489size_t BIO_ctrl_get_write_guarantee(BIO *b); 490size_t BIO_ctrl_get_read_request(BIO *b); 491int BIO_ctrl_reset_read_request(BIO *b); 492 493#ifdef NO_STDIO 494#define NO_FP_API 495#endif 496 497 498/* These two aren't currently implemented */ 499/* int BIO_get_ex_num(BIO *bio); */ 500/* void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)()); */ 501int BIO_set_ex_data(BIO *bio,int idx,void *data); 502void *BIO_get_ex_data(BIO *bio,int idx); 503int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 504 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func); 505unsigned long BIO_number_read(BIO *bio); 506unsigned long BIO_number_written(BIO *bio); 507 508# if defined(WIN16) && defined(_WINDLL) 509BIO_METHOD *BIO_s_file_internal(void); 510BIO *BIO_new_file_internal(char *filename, char *mode); 511BIO *BIO_new_fp_internal(FILE *stream, int close_flag); 512# define BIO_s_file BIO_s_file_internal 513# define BIO_new_file BIO_new_file_internal 514# define BIO_new_fp BIO_new_fp_internal 515# else /* FP_API */ 516const BIO_METHOD *BIO_s_file(void ); 517BIO *BIO_new_file(const char *filename, const char *mode); 518BIO *BIO_new_fp(FILE *stream, int close_flag); 519# define BIO_s_file_internal BIO_s_file 520# define BIO_new_file_internal BIO_new_file 521# define BIO_new_fp_internal BIO_s_file 522# endif /* FP_API */ 523BIO * BIO_new(const BIO_METHOD *type); 524int BIO_set(BIO *a,const BIO_METHOD *type); 525int BIO_free(BIO *a); 526int BIO_read(BIO *b, void *data, int len); 527int BIO_gets(BIO *bp,char *buf, int size); 528int BIO_write(BIO *b, const void *data, int len); 529int BIO_puts(BIO *bp,const char *buf); 530long BIO_ctrl(BIO *bp,int cmd,long larg,void *parg); 531long BIO_callback_ctrl(BIO *bp,int cmd,void (*fp)()); 532char * BIO_ptr_ctrl(BIO *bp,int cmd,long larg); 533long BIO_int_ctrl(BIO *bp,int cmd,long larg,int iarg); 534BIO * BIO_push(BIO *b,BIO *append); 535BIO * BIO_pop(BIO *b); 536void BIO_free_all(BIO *a); 537BIO * BIO_find_type(BIO *b,int bio_type); 538BIO * BIO_get_retry_BIO(BIO *bio, int *reason); 539int BIO_get_retry_reason(BIO *bio); 540BIO * BIO_dup_chain(BIO *in); 541 542int BIO_nread0(BIO *bio, char **buf); 543int BIO_nread(BIO *bio, char **buf, int num); 544int BIO_nwrite0(BIO *bio, char **buf); 545int BIO_nwrite(BIO *bio, char **buf, int num); 546 547#ifndef WIN16 548long BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi, 549 long argl,long ret); 550#else 551long _far _loadds BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi, 552 long argl,long ret); 553#endif 554 555BIO_METHOD *BIO_s_mem(void); 556BIO *BIO_new_mem_buf(void *buf, int len); 557BIO_METHOD *BIO_s_socket(void); 558BIO_METHOD *BIO_s_connect(void); 559BIO_METHOD *BIO_s_accept(void); 560BIO_METHOD *BIO_s_fd(void); 561BIO_METHOD *BIO_s_log(void); 562BIO_METHOD *BIO_s_bio(void); 563BIO_METHOD *BIO_s_null(void); 564BIO_METHOD *BIO_f_null(void); 565BIO_METHOD *BIO_f_buffer(void); 566BIO_METHOD *BIO_f_nbio_test(void); 567/* BIO_METHOD *BIO_f_ber(void); */ 568 569int BIO_sock_should_retry(int i); 570int BIO_sock_non_fatal_error(int error); 571int BIO_fd_should_retry(int i); 572int BIO_fd_non_fatal_error(int error); 573int BIO_dump(BIO *b,const char *bytes,int len); 574 575struct hostent *BIO_gethostbyname(const char *name); 576/* We might want a thread-safe interface too: 577 * struct hostent *BIO_gethostbyname_r(const char *name, 578 * struct hostent *result, void *buffer, size_t buflen); 579 * or something similar (caller allocates a struct hostent, 580 * pointed to by "result", and additional buffer space for the various 581 * substructures; if the buffer does not suffice, NULL is returned 582 * and an appropriate error code is set). 583 */ 584int BIO_sock_error(int sock); 585int BIO_socket_ioctl(int fd, long type, unsigned long *arg); 586int BIO_socket_nbio(int fd,int mode); 587int BIO_get_port(const char *str, unsigned short *port_ptr); 588int BIO_get_host_ip(const char *str, unsigned char *ip); 589int BIO_get_accept_socket(char *host_port,int mode); 590int BIO_accept(int sock,char **ip_port); 591int BIO_sock_init(void ); 592void BIO_sock_cleanup(void); 593int BIO_set_tcp_ndelay(int sock,int turn_on); 594 595void ERR_load_BIO_strings(void ); 596 597BIO *BIO_new_socket(int sock, int close_flag); 598BIO *BIO_new_fd(int fd, int close_flag); 599BIO *BIO_new_connect(char *host_port); 600BIO *BIO_new_accept(char *host_port); 601 602int BIO_new_bio_pair(BIO **bio1, size_t writebuf1, 603 BIO **bio2, size_t writebuf2); 604/* If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints. 605 * Otherwise returns 0 and sets *bio1 and *bio2 to NULL. 606 * Size 0 uses default value. 607 */ 608 609void BIO_copy_next_retry(BIO *b); 610 611long BIO_ghbn_ctrl(int cmd,int iarg,char *parg); 612 613int BIO_printf(BIO *bio, ...); 614 615/* BEGIN ERROR CODES */ 616/* The following lines are auto generated by the script mkerr.pl. Any changes 617 * made after this point may be overwritten when the script is next run. 618 */ 619 620/* Error codes for the BIO functions. */ 621 622/* Function codes. */ 623#define BIO_F_ACPT_STATE 100 624#define BIO_F_BIO_ACCEPT 101 625#define BIO_F_BIO_BER_GET_HEADER 102 626#define BIO_F_BIO_CTRL 103 627#define BIO_F_BIO_GETHOSTBYNAME 120 628#define BIO_F_BIO_GETS 104 629#define BIO_F_BIO_GET_ACCEPT_SOCKET 105 630#define BIO_F_BIO_GET_HOST_IP 106 631#define BIO_F_BIO_GET_PORT 107 632#define BIO_F_BIO_MAKE_PAIR 121 633#define BIO_F_BIO_NEW 108 634#define BIO_F_BIO_NEW_FILE 109 635#define BIO_F_BIO_NEW_MEM_BUF 126 636#define BIO_F_BIO_NREAD 123 637#define BIO_F_BIO_NREAD0 124 638#define BIO_F_BIO_NWRITE 125 639#define BIO_F_BIO_NWRITE0 122 640#define BIO_F_BIO_PUTS 110 641#define BIO_F_BIO_READ 111 642#define BIO_F_BIO_SOCK_INIT 112 643#define BIO_F_BIO_WRITE 113 644#define BIO_F_BUFFER_CTRL 114 645#define BIO_F_CONN_CTRL 127 646#define BIO_F_CONN_STATE 115 647#define BIO_F_FILE_CTRL 116 648#define BIO_F_MEM_WRITE 117 649#define BIO_F_SSL_NEW 118 650#define BIO_F_WSASTARTUP 119 651 652/* Reason codes. */ 653#define BIO_R_ACCEPT_ERROR 100 654#define BIO_R_BAD_FOPEN_MODE 101 655#define BIO_R_BAD_HOSTNAME_LOOKUP 102 656#define BIO_R_BROKEN_PIPE 124 657#define BIO_R_CONNECT_ERROR 103 658#define BIO_R_ERROR_SETTING_NBIO 104 659#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET 105 660#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET 106 661#define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET 107 662#define BIO_R_INVALID_ARGUMENT 125 663#define BIO_R_INVALID_IP_ADDRESS 108 664#define BIO_R_IN_USE 123 665#define BIO_R_KEEPALIVE 109 666#define BIO_R_NBIO_CONNECT_ERROR 110 667#define BIO_R_NO_ACCEPT_PORT_SPECIFIED 111 668#define BIO_R_NO_HOSTNAME_SPECIFIED 112 669#define BIO_R_NO_PORT_DEFINED 113 670#define BIO_R_NO_PORT_SPECIFIED 114 671#define BIO_R_NULL_PARAMETER 115 672#define BIO_R_TAG_MISMATCH 116 673#define BIO_R_UNABLE_TO_BIND_SOCKET 117 674#define BIO_R_UNABLE_TO_CREATE_SOCKET 118 675#define BIO_R_UNABLE_TO_LISTEN_SOCKET 119 676#define BIO_R_UNINITIALIZED 120 677#define BIO_R_UNSUPPORTED_METHOD 121 678#define BIO_R_WRITE_TO_READ_ONLY_BIO 126 679#define BIO_R_WSASTARTUP 122 680 681#ifdef __cplusplus 682} 683#endif 684#endif 685 686