bio.h revision 296465
1/* crypto/bio/bio.h */ 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 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 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#ifdef __cplusplus 72extern "C" { 73#endif 74 75/* These are the 'types' of BIOs */ 76# define BIO_TYPE_NONE 0 77# define BIO_TYPE_MEM (1|0x0400) 78# define BIO_TYPE_FILE (2|0x0400) 79 80# define BIO_TYPE_FD (4|0x0400|0x0100) 81# define BIO_TYPE_SOCKET (5|0x0400|0x0100) 82# define BIO_TYPE_NULL (6|0x0400) 83# define BIO_TYPE_SSL (7|0x0200) 84# define BIO_TYPE_MD (8|0x0200)/* passive filter */ 85# define BIO_TYPE_BUFFER (9|0x0200)/* filter */ 86# define BIO_TYPE_CIPHER (10|0x0200)/* filter */ 87# define BIO_TYPE_BASE64 (11|0x0200)/* filter */ 88# define BIO_TYPE_CONNECT (12|0x0400|0x0100)/* socket - connect */ 89# define BIO_TYPE_ACCEPT (13|0x0400|0x0100)/* socket for accept */ 90# define BIO_TYPE_PROXY_CLIENT (14|0x0200)/* client proxy BIO */ 91# define BIO_TYPE_PROXY_SERVER (15|0x0200)/* server proxy BIO */ 92# define BIO_TYPE_NBIO_TEST (16|0x0200)/* server proxy BIO */ 93# define BIO_TYPE_NULL_FILTER (17|0x0200) 94# define BIO_TYPE_BER (18|0x0200)/* BER -> bin filter */ 95# define BIO_TYPE_BIO (19|0x0400)/* (half a) BIO pair */ 96# define BIO_TYPE_LINEBUFFER (20|0x0200)/* filter */ 97# define BIO_TYPE_DGRAM (21|0x0400|0x0100) 98# define BIO_TYPE_COMP (23|0x0200)/* filter */ 99 100# define BIO_TYPE_DESCRIPTOR 0x0100/* socket, fd, connect or accept */ 101# define BIO_TYPE_FILTER 0x0200 102# define BIO_TYPE_SOURCE_SINK 0x0400 103 104/* 105 * BIO_FILENAME_READ|BIO_CLOSE to open or close on free. 106 * BIO_set_fp(in,stdin,BIO_NOCLOSE); 107 */ 108# define BIO_NOCLOSE 0x00 109# define BIO_CLOSE 0x01 110 111/* 112 * These are used in the following macros and are passed to BIO_ctrl() 113 */ 114# define BIO_CTRL_RESET 1/* opt - rewind/zero etc */ 115# define BIO_CTRL_EOF 2/* opt - are we at the eof */ 116# define BIO_CTRL_INFO 3/* opt - extra tit-bits */ 117# define BIO_CTRL_SET 4/* man - set the 'IO' type */ 118# define BIO_CTRL_GET 5/* man - get the 'IO' type */ 119# define BIO_CTRL_PUSH 6/* opt - internal, used to signify change */ 120# define BIO_CTRL_POP 7/* opt - internal, used to signify change */ 121# define BIO_CTRL_GET_CLOSE 8/* man - set the 'close' on free */ 122# define BIO_CTRL_SET_CLOSE 9/* man - set the 'close' on free */ 123# define BIO_CTRL_PENDING 10/* opt - is their more data buffered */ 124# define BIO_CTRL_FLUSH 11/* opt - 'flush' buffered output */ 125# define BIO_CTRL_DUP 12/* man - extra stuff for 'duped' BIO */ 126# define BIO_CTRL_WPENDING 13/* opt - number of bytes still to write */ 127/* callback is int cb(BIO *bio,state,ret); */ 128# define BIO_CTRL_SET_CALLBACK 14/* opt - set callback function */ 129# define BIO_CTRL_GET_CALLBACK 15/* opt - set callback function */ 130 131# define BIO_CTRL_SET_FILENAME 30/* BIO_s_file special */ 132 133/* dgram BIO stuff */ 134# define BIO_CTRL_DGRAM_CONNECT 31/* BIO dgram special */ 135# define BIO_CTRL_DGRAM_SET_CONNECTED 32/* allow for an externally connected 136 * socket to be passed in */ 137# define BIO_CTRL_DGRAM_SET_RECV_TIMEOUT 33/* setsockopt, essentially */ 138# define BIO_CTRL_DGRAM_GET_RECV_TIMEOUT 34/* getsockopt, essentially */ 139# define BIO_CTRL_DGRAM_SET_SEND_TIMEOUT 35/* setsockopt, essentially */ 140# define BIO_CTRL_DGRAM_GET_SEND_TIMEOUT 36/* getsockopt, essentially */ 141 142# define BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP 37/* flag whether the last */ 143# define BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP 38/* I/O operation tiemd out */ 144 145/* #ifdef IP_MTU_DISCOVER */ 146# define BIO_CTRL_DGRAM_MTU_DISCOVER 39/* set DF bit on egress packets */ 147/* #endif */ 148 149# define BIO_CTRL_DGRAM_QUERY_MTU 40/* as kernel for current MTU */ 150# define BIO_CTRL_DGRAM_GET_FALLBACK_MTU 47 151# define BIO_CTRL_DGRAM_GET_MTU 41/* get cached value for MTU */ 152# define BIO_CTRL_DGRAM_SET_MTU 42/* set cached value for MTU. 153 * want to use this if asking 154 * the kernel fails */ 155 156# define BIO_CTRL_DGRAM_MTU_EXCEEDED 43/* check whether the MTU was 157 * exceed in the previous write 158 * operation */ 159 160# define BIO_CTRL_DGRAM_GET_PEER 46 161# define BIO_CTRL_DGRAM_SET_PEER 44/* Destination for the data */ 162 163# define BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT 45/* Next DTLS handshake timeout 164 * to * adjust socket timeouts */ 165 166/* modifiers */ 167# define BIO_FP_READ 0x02 168# define BIO_FP_WRITE 0x04 169# define BIO_FP_APPEND 0x08 170# define BIO_FP_TEXT 0x10 171 172# define BIO_FLAGS_READ 0x01 173# define BIO_FLAGS_WRITE 0x02 174# define BIO_FLAGS_IO_SPECIAL 0x04 175# define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL) 176# define BIO_FLAGS_SHOULD_RETRY 0x08 177# ifndef BIO_FLAGS_UPLINK 178/* 179 * "UPLINK" flag denotes file descriptors provided by application. It 180 * defaults to 0, as most platforms don't require UPLINK interface. 181 */ 182# define BIO_FLAGS_UPLINK 0 183# endif 184 185/* Used in BIO_gethostbyname() */ 186# define BIO_GHBN_CTRL_HITS 1 187# define BIO_GHBN_CTRL_MISSES 2 188# define BIO_GHBN_CTRL_CACHE_SIZE 3 189# define BIO_GHBN_CTRL_GET_ENTRY 4 190# define BIO_GHBN_CTRL_FLUSH 5 191 192/* Mostly used in the SSL BIO */ 193/*- 194 * Not used anymore 195 * #define BIO_FLAGS_PROTOCOL_DELAYED_READ 0x10 196 * #define BIO_FLAGS_PROTOCOL_DELAYED_WRITE 0x20 197 * #define BIO_FLAGS_PROTOCOL_STARTUP 0x40 198 */ 199 200# define BIO_FLAGS_BASE64_NO_NL 0x100 201 202/* 203 * This is used with memory BIOs: it means we shouldn't free up or change the 204 * data in any way. 205 */ 206# define BIO_FLAGS_MEM_RDONLY 0x200 207 208typedef struct bio_st BIO; 209 210void BIO_set_flags(BIO *b, int flags); 211int BIO_test_flags(const BIO *b, int flags); 212void BIO_clear_flags(BIO *b, int flags); 213 214# define BIO_get_flags(b) BIO_test_flags(b, ~(0x0)) 215# define BIO_set_retry_special(b) \ 216 BIO_set_flags(b, (BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY)) 217# define BIO_set_retry_read(b) \ 218 BIO_set_flags(b, (BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY)) 219# define BIO_set_retry_write(b) \ 220 BIO_set_flags(b, (BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY)) 221 222/* These are normally used internally in BIOs */ 223# define BIO_clear_retry_flags(b) \ 224 BIO_clear_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY)) 225# define BIO_get_retry_flags(b) \ 226 BIO_test_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY)) 227 228/* These should be used by the application to tell why we should retry */ 229# define BIO_should_read(a) BIO_test_flags(a, BIO_FLAGS_READ) 230# define BIO_should_write(a) BIO_test_flags(a, BIO_FLAGS_WRITE) 231# define BIO_should_io_special(a) BIO_test_flags(a, BIO_FLAGS_IO_SPECIAL) 232# define BIO_retry_type(a) BIO_test_flags(a, BIO_FLAGS_RWS) 233# define BIO_should_retry(a) BIO_test_flags(a, BIO_FLAGS_SHOULD_RETRY) 234 235/* 236 * The next three are used in conjunction with the BIO_should_io_special() 237 * condition. After this returns true, BIO *BIO_get_retry_BIO(BIO *bio, int 238 * *reason); will walk the BIO stack and return the 'reason' for the special 239 * and the offending BIO. Given a BIO, BIO_get_retry_reason(bio) will return 240 * the code. 241 */ 242/* 243 * Returned from the SSL bio when the certificate retrieval code had an error 244 */ 245# define BIO_RR_SSL_X509_LOOKUP 0x01 246/* Returned from the connect BIO when a connect would have blocked */ 247# define BIO_RR_CONNECT 0x02 248/* Returned from the accept BIO when an accept would have blocked */ 249# define BIO_RR_ACCEPT 0x03 250 251/* These are passed by the BIO callback */ 252# define BIO_CB_FREE 0x01 253# define BIO_CB_READ 0x02 254# define BIO_CB_WRITE 0x03 255# define BIO_CB_PUTS 0x04 256# define BIO_CB_GETS 0x05 257# define BIO_CB_CTRL 0x06 258 259/* 260 * The callback is called before and after the underling operation, The 261 * BIO_CB_RETURN flag indicates if it is after the call 262 */ 263# define BIO_CB_RETURN 0x80 264# define BIO_CB_return(a) ((a)|BIO_CB_RETURN)) 265# define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN)) 266# define BIO_cb_post(a) ((a)&BIO_CB_RETURN) 267 268long (*BIO_get_callback(const BIO *b)) (struct bio_st *, int, const char *, 269 int, long, long); 270void BIO_set_callback(BIO *b, 271 long (*callback) (struct bio_st *, int, const char *, 272 int, long, long)); 273char *BIO_get_callback_arg(const BIO *b); 274void BIO_set_callback_arg(BIO *b, char *arg); 275 276const char *BIO_method_name(const BIO *b); 277int BIO_method_type(const BIO *b); 278 279typedef void bio_info_cb (struct bio_st *, int, const char *, int, long, 280 long); 281 282# ifndef OPENSSL_SYS_WIN16 283typedef struct bio_method_st { 284 int type; 285 const char *name; 286 int (*bwrite) (BIO *, const char *, int); 287 int (*bread) (BIO *, char *, int); 288 int (*bputs) (BIO *, const char *); 289 int (*bgets) (BIO *, char *, int); 290 long (*ctrl) (BIO *, int, long, void *); 291 int (*create) (BIO *); 292 int (*destroy) (BIO *); 293 long (*callback_ctrl) (BIO *, int, bio_info_cb *); 294} BIO_METHOD; 295# else 296typedef struct bio_method_st { 297 int type; 298 const char *name; 299 int (_far * bwrite) (); 300 int (_far * bread) (); 301 int (_far * bputs) (); 302 int (_far * bgets) (); 303 long (_far * ctrl) (); 304 int (_far * create) (); 305 int (_far * destroy) (); 306 long (_far * callback_ctrl) (); 307} BIO_METHOD; 308# endif 309 310struct bio_st { 311 BIO_METHOD *method; 312 /* bio, mode, argp, argi, argl, ret */ 313 long (*callback) (struct bio_st *, int, const char *, int, long, long); 314 char *cb_arg; /* first argument for the callback */ 315 int init; 316 int shutdown; 317 int flags; /* extra storage */ 318 int retry_reason; 319 int num; 320 void *ptr; 321 struct bio_st *next_bio; /* used by filter BIOs */ 322 struct bio_st *prev_bio; /* used by filter BIOs */ 323 int references; 324 unsigned long num_read; 325 unsigned long num_write; 326 CRYPTO_EX_DATA ex_data; 327}; 328 329DECLARE_STACK_OF(BIO) 330 331typedef struct bio_f_buffer_ctx_struct { 332 /*- 333 * Buffers are setup like this: 334 * 335 * <---------------------- size -----------------------> 336 * +---------------------------------------------------+ 337 * | consumed | remaining | free space | 338 * +---------------------------------------------------+ 339 * <-- off --><------- len -------> 340 */ 341 /*- BIO *bio; *//* 342 * this is now in the BIO struct 343 */ 344 int ibuf_size; /* how big is the input buffer */ 345 int obuf_size; /* how big is the output buffer */ 346 char *ibuf; /* the char array */ 347 int ibuf_len; /* how many bytes are in it */ 348 int ibuf_off; /* write/read offset */ 349 char *obuf; /* the char array */ 350 int obuf_len; /* how many bytes are in it */ 351 int obuf_off; /* write/read offset */ 352} BIO_F_BUFFER_CTX; 353 354/* connect BIO stuff */ 355# define BIO_CONN_S_BEFORE 1 356# define BIO_CONN_S_GET_IP 2 357# define BIO_CONN_S_GET_PORT 3 358# define BIO_CONN_S_CREATE_SOCKET 4 359# define BIO_CONN_S_CONNECT 5 360# define BIO_CONN_S_OK 6 361# define BIO_CONN_S_BLOCKED_CONNECT 7 362# define BIO_CONN_S_NBIO 8 363/* 364 * #define BIO_CONN_get_param_hostname BIO_ctrl 365 */ 366 367# define BIO_C_SET_CONNECT 100 368# define BIO_C_DO_STATE_MACHINE 101 369# define BIO_C_SET_NBIO 102 370# define BIO_C_SET_PROXY_PARAM 103 371# define BIO_C_SET_FD 104 372# define BIO_C_GET_FD 105 373# define BIO_C_SET_FILE_PTR 106 374# define BIO_C_GET_FILE_PTR 107 375# define BIO_C_SET_FILENAME 108 376# define BIO_C_SET_SSL 109 377# define BIO_C_GET_SSL 110 378# define BIO_C_SET_MD 111 379# define BIO_C_GET_MD 112 380# define BIO_C_GET_CIPHER_STATUS 113 381# define BIO_C_SET_BUF_MEM 114 382# define BIO_C_GET_BUF_MEM_PTR 115 383# define BIO_C_GET_BUFF_NUM_LINES 116 384# define BIO_C_SET_BUFF_SIZE 117 385# define BIO_C_SET_ACCEPT 118 386# define BIO_C_SSL_MODE 119 387# define BIO_C_GET_MD_CTX 120 388# define BIO_C_GET_PROXY_PARAM 121 389# define BIO_C_SET_BUFF_READ_DATA 122/* data to read first */ 390# define BIO_C_GET_CONNECT 123 391# define BIO_C_GET_ACCEPT 124 392# define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125 393# define BIO_C_GET_SSL_NUM_RENEGOTIATES 126 394# define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127 395# define BIO_C_FILE_SEEK 128 396# define BIO_C_GET_CIPHER_CTX 129 397# define BIO_C_SET_BUF_MEM_EOF_RETURN 130/* return end of input 398 * value */ 399# define BIO_C_SET_BIND_MODE 131 400# define BIO_C_GET_BIND_MODE 132 401# define BIO_C_FILE_TELL 133 402# define BIO_C_GET_SOCKS 134 403# define BIO_C_SET_SOCKS 135 404 405# define BIO_C_SET_WRITE_BUF_SIZE 136/* for BIO_s_bio */ 406# define BIO_C_GET_WRITE_BUF_SIZE 137 407# define BIO_C_MAKE_BIO_PAIR 138 408# define BIO_C_DESTROY_BIO_PAIR 139 409# define BIO_C_GET_WRITE_GUARANTEE 140 410# define BIO_C_GET_READ_REQUEST 141 411# define BIO_C_SHUTDOWN_WR 142 412# define BIO_C_NREAD0 143 413# define BIO_C_NREAD 144 414# define BIO_C_NWRITE0 145 415# define BIO_C_NWRITE 146 416# define BIO_C_RESET_READ_REQUEST 147 417# define BIO_C_SET_MD_CTX 148 418 419# define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,arg) 420# define BIO_get_app_data(s) BIO_get_ex_data(s,0) 421 422/* BIO_s_connect() and BIO_s_socks4a_connect() */ 423# define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name) 424# define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port) 425# define BIO_set_conn_ip(b,ip) BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip) 426# define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port) 427# define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0) 428# define BIO_get_conn_port(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1) 429# define BIO_get_conn_ip(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,2) 430# define BIO_get_conn_int_port(b) BIO_int_ctrl(b,BIO_C_GET_CONNECT,3,0) 431 432# define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) 433 434/* BIO_s_accept_socket() */ 435# define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name) 436# define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0) 437/* #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */ 438# define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?(void *)"a":NULL) 439# define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio) 440 441# define BIO_BIND_NORMAL 0 442# define BIO_BIND_REUSEADDR_IF_UNUSED 1 443# define BIO_BIND_REUSEADDR 2 444# define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL) 445# define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL) 446 447# define BIO_do_connect(b) BIO_do_handshake(b) 448# define BIO_do_accept(b) BIO_do_handshake(b) 449# define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL) 450 451/* BIO_s_proxy_client() */ 452# define BIO_set_url(b,url) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url)) 453# define BIO_set_proxies(b,p) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p)) 454/* BIO_set_nbio(b,n) */ 455# define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s)) 456/* BIO *BIO_get_filter_bio(BIO *bio); */ 457# define BIO_set_proxy_cb(b,cb) BIO_callback_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(void *(*cb)())) 458# define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk) 459# define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool) 460 461# define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp) 462# define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p)) 463# define BIO_get_url(b,url) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url)) 464# define BIO_get_no_connect_return(b) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL) 465 466# define BIO_set_fd(b,fd,c) BIO_int_ctrl(b,BIO_C_SET_FD,c,fd) 467# define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c) 468 469# define BIO_set_fp(b,fp,c) BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp) 470# define BIO_get_fp(b,fpp) BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp) 471 472# define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL) 473# define BIO_tell(b) (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL) 474 475/* 476 * name is cast to lose const, but might be better to route through a 477 * function so we can do it safely 478 */ 479# ifdef CONST_STRICT 480/* 481 * If you are wondering why this isn't defined, its because CONST_STRICT is 482 * purely a compile-time kludge to allow const to be checked. 483 */ 484int BIO_read_filename(BIO *b, const char *name); 485# else 486# define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 487 BIO_CLOSE|BIO_FP_READ,(char *)name) 488# endif 489# define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 490 BIO_CLOSE|BIO_FP_WRITE,name) 491# define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 492 BIO_CLOSE|BIO_FP_APPEND,name) 493# define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 494 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name) 495 496/* 497 * WARNING WARNING, this ups the reference count on the read bio of the SSL 498 * structure. This is because the ssl read BIO is now pointed to by the 499 * next_bio field in the bio. So when you free the BIO, make sure you are 500 * doing a BIO_free_all() to catch the underlying BIO. 501 */ 502# define BIO_set_ssl(b,ssl,c) BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl) 503# define BIO_get_ssl(b,sslp) BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp) 504# define BIO_set_ssl_mode(b,client) BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL) 505# define BIO_set_ssl_renegotiate_bytes(b,num) \ 506 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL); 507# define BIO_get_num_renegotiates(b) \ 508 BIO_ctrl(b,BIO_C_GET_SSL_NUM_RENEGOTIATES,0,NULL); 509# define BIO_set_ssl_renegotiate_timeout(b,seconds) \ 510 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL); 511 512/* defined in evp.h */ 513/* #define BIO_set_md(b,md) BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */ 514 515# define BIO_get_mem_data(b,pp) BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp) 516# define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm) 517# define BIO_get_mem_ptr(b,pp) BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp) 518# define BIO_set_mem_eof_return(b,v) \ 519 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL) 520 521/* For the BIO_f_buffer() type */ 522# define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL) 523# define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL) 524# define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0) 525# define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1) 526# define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf) 527 528/* Don't use the next one unless you know what you are doing :-) */ 529# define BIO_dup_state(b,ret) BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret)) 530 531# define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL) 532# define BIO_eof(b) (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL) 533# define BIO_set_close(b,c) (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL) 534# define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL) 535# define BIO_pending(b) (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL) 536# define BIO_wpending(b) (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL) 537/* ...pending macros have inappropriate return type */ 538size_t BIO_ctrl_pending(BIO *b); 539size_t BIO_ctrl_wpending(BIO *b); 540# define BIO_flush(b) (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL) 541# define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0, \ 542 cbp) 543# define BIO_set_info_callback(b,cb) (int)BIO_callback_ctrl(b,BIO_CTRL_SET_CALLBACK,cb) 544 545/* For the BIO_f_buffer() type */ 546# define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL) 547 548/* For BIO_s_bio() */ 549# define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL) 550# define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL) 551# define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2) 552# define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL) 553# define BIO_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL) 554/* macros with inappropriate type -- but ...pending macros use int too: */ 555# define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL) 556# define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL) 557size_t BIO_ctrl_get_write_guarantee(BIO *b); 558size_t BIO_ctrl_get_read_request(BIO *b); 559int BIO_ctrl_reset_read_request(BIO *b); 560 561/* ctrl macros for dgram */ 562# define BIO_ctrl_dgram_connect(b,peer) \ 563 (int)BIO_ctrl(b,BIO_CTRL_DGRAM_CONNECT,0, (char *)peer) 564# define BIO_ctrl_set_connected(b, state, peer) \ 565 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_CONNECTED, state, (char *)peer) 566# define BIO_dgram_recv_timedout(b) \ 567 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP, 0, NULL) 568# define BIO_dgram_send_timedout(b) \ 569 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP, 0, NULL) 570# define BIO_dgram_get_peer(b,peer) \ 571 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_PEER, 0, (char *)peer) 572# define BIO_dgram_set_peer(b,peer) \ 573 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, (char *)peer) 574 575/* These two aren't currently implemented */ 576/* int BIO_get_ex_num(BIO *bio); */ 577/* void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)()); */ 578int BIO_set_ex_data(BIO *bio, int idx, void *data); 579void *BIO_get_ex_data(BIO *bio, int idx); 580int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 581 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func); 582unsigned long BIO_number_read(BIO *bio); 583unsigned long BIO_number_written(BIO *bio); 584 585# ifndef OPENSSL_NO_FP_API 586# if defined(OPENSSL_SYS_WIN16) && defined(_WINDLL) 587BIO_METHOD *BIO_s_file_internal(void); 588BIO *BIO_new_file_internal(char *filename, char *mode); 589BIO *BIO_new_fp_internal(FILE *stream, int close_flag); 590# define BIO_s_file BIO_s_file_internal 591# define BIO_new_file BIO_new_file_internal 592# define BIO_new_fp BIO_new_fp_internal 593# else /* FP_API */ 594BIO_METHOD *BIO_s_file(void); 595BIO *BIO_new_file(const char *filename, const char *mode); 596BIO *BIO_new_fp(FILE *stream, int close_flag); 597# define BIO_s_file_internal BIO_s_file 598# define BIO_new_file_internal BIO_new_file 599# define BIO_new_fp_internal BIO_s_file 600# endif /* FP_API */ 601# endif 602BIO *BIO_new(BIO_METHOD *type); 603int BIO_set(BIO *a, BIO_METHOD *type); 604int BIO_free(BIO *a); 605void BIO_vfree(BIO *a); 606int BIO_read(BIO *b, void *data, int len); 607int BIO_gets(BIO *bp, char *buf, int size); 608int BIO_write(BIO *b, const void *data, int len); 609int BIO_puts(BIO *bp, const char *buf); 610int BIO_indent(BIO *b, int indent, int max); 611long BIO_ctrl(BIO *bp, int cmd, long larg, void *parg); 612long BIO_callback_ctrl(BIO *b, int cmd, 613 void (*fp) (struct bio_st *, int, const char *, int, 614 long, long)); 615char *BIO_ptr_ctrl(BIO *bp, int cmd, long larg); 616long BIO_int_ctrl(BIO *bp, int cmd, long larg, int iarg); 617BIO *BIO_push(BIO *b, BIO *append); 618BIO *BIO_pop(BIO *b); 619void BIO_free_all(BIO *a); 620BIO *BIO_find_type(BIO *b, int bio_type); 621BIO *BIO_next(BIO *b); 622BIO *BIO_get_retry_BIO(BIO *bio, int *reason); 623int BIO_get_retry_reason(BIO *bio); 624BIO *BIO_dup_chain(BIO *in); 625 626int BIO_nread0(BIO *bio, char **buf); 627int BIO_nread(BIO *bio, char **buf, int num); 628int BIO_nwrite0(BIO *bio, char **buf); 629int BIO_nwrite(BIO *bio, char **buf, int num); 630 631# ifndef OPENSSL_SYS_WIN16 632long BIO_debug_callback(BIO *bio, int cmd, const char *argp, int argi, 633 long argl, long ret); 634# else 635long _far _loadds BIO_debug_callback(BIO *bio, int cmd, const char *argp, 636 int argi, long argl, long ret); 637# endif 638 639BIO_METHOD *BIO_s_mem(void); 640BIO *BIO_new_mem_buf(void *buf, int len); 641BIO_METHOD *BIO_s_socket(void); 642BIO_METHOD *BIO_s_connect(void); 643BIO_METHOD *BIO_s_accept(void); 644BIO_METHOD *BIO_s_fd(void); 645# ifndef OPENSSL_SYS_OS2 646BIO_METHOD *BIO_s_log(void); 647# endif 648BIO_METHOD *BIO_s_bio(void); 649BIO_METHOD *BIO_s_null(void); 650BIO_METHOD *BIO_f_null(void); 651BIO_METHOD *BIO_f_buffer(void); 652# ifdef OPENSSL_SYS_VMS 653BIO_METHOD *BIO_f_linebuffer(void); 654# endif 655BIO_METHOD *BIO_f_nbio_test(void); 656# ifndef OPENSSL_NO_DGRAM 657BIO_METHOD *BIO_s_datagram(void); 658# endif 659 660/* BIO_METHOD *BIO_f_ber(void); */ 661 662int BIO_sock_should_retry(int i); 663int BIO_sock_non_fatal_error(int error); 664int BIO_dgram_non_fatal_error(int error); 665 666int BIO_fd_should_retry(int i); 667int BIO_fd_non_fatal_error(int error); 668int BIO_dump_cb(int (*cb) (const void *data, size_t len, void *u), 669 void *u, const char *s, int len); 670int BIO_dump_indent_cb(int (*cb) (const void *data, size_t len, void *u), 671 void *u, const char *s, int len, int indent); 672int BIO_dump(BIO *b, const char *bytes, int len); 673int BIO_dump_indent(BIO *b, const char *bytes, int len, int indent); 674# ifndef OPENSSL_NO_FP_API 675int BIO_dump_fp(FILE *fp, const char *s, int len); 676int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent); 677# endif 678struct hostent *BIO_gethostbyname(const char *name); 679/*- 680 * We might want a thread-safe interface too: 681 * struct hostent *BIO_gethostbyname_r(const char *name, 682 * struct hostent *result, void *buffer, size_t buflen); 683 * or something similar (caller allocates a struct hostent, 684 * pointed to by "result", and additional buffer space for the various 685 * substructures; if the buffer does not suffice, NULL is returned 686 * and an appropriate error code is set). 687 */ 688int BIO_sock_error(int sock); 689int BIO_socket_ioctl(int fd, long type, void *arg); 690int BIO_socket_nbio(int fd, int mode); 691int BIO_get_port(const char *str, unsigned short *port_ptr); 692int BIO_get_host_ip(const char *str, unsigned char *ip); 693int BIO_get_accept_socket(char *host_port, int mode); 694int BIO_accept(int sock, char **ip_port); 695int BIO_sock_init(void); 696void BIO_sock_cleanup(void); 697int BIO_set_tcp_ndelay(int sock, int turn_on); 698 699BIO *BIO_new_socket(int sock, int close_flag); 700BIO *BIO_new_dgram(int fd, int close_flag); 701BIO *BIO_new_fd(int fd, int close_flag); 702BIO *BIO_new_connect(char *host_port); 703BIO *BIO_new_accept(char *host_port); 704 705int BIO_new_bio_pair(BIO **bio1, size_t writebuf1, 706 BIO **bio2, size_t writebuf2); 707/* 708 * If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints. 709 * Otherwise returns 0 and sets *bio1 and *bio2 to NULL. Size 0 uses default 710 * value. 711 */ 712 713void BIO_copy_next_retry(BIO *b); 714 715/* 716 * long BIO_ghbn_ctrl(int cmd,int iarg,char *parg); 717 */ 718 719# ifdef __GNUC__ 720# define __bio_h__attr__ __attribute__ 721# else 722# define __bio_h__attr__(x) 723# endif 724int BIO_printf(BIO *bio, const char *format, ...) 725__bio_h__attr__((__format__(__printf__, 2, 3))); 726int BIO_vprintf(BIO *bio, const char *format, va_list args) 727__bio_h__attr__((__format__(__printf__, 2, 0))); 728int BIO_snprintf(char *buf, size_t n, const char *format, ...) 729__bio_h__attr__((__format__(__printf__, 3, 4))); 730int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args) 731__bio_h__attr__((__format__(__printf__, 3, 0))); 732# undef __bio_h__attr__ 733 734/* BEGIN ERROR CODES */ 735/* 736 * The following lines are auto generated by the script mkerr.pl. Any changes 737 * made after this point may be overwritten when the script is next run. 738 */ 739void ERR_load_BIO_strings(void); 740 741/* Error codes for the BIO functions. */ 742 743/* Function codes. */ 744# define BIO_F_ACPT_STATE 100 745# define BIO_F_BIO_ACCEPT 101 746# define BIO_F_BIO_BER_GET_HEADER 102 747# define BIO_F_BIO_CALLBACK_CTRL 131 748# define BIO_F_BIO_CTRL 103 749# define BIO_F_BIO_GETHOSTBYNAME 120 750# define BIO_F_BIO_GETS 104 751# define BIO_F_BIO_GET_ACCEPT_SOCKET 105 752# define BIO_F_BIO_GET_HOST_IP 106 753# define BIO_F_BIO_GET_PORT 107 754# define BIO_F_BIO_MAKE_PAIR 121 755# define BIO_F_BIO_NEW 108 756# define BIO_F_BIO_NEW_FILE 109 757# define BIO_F_BIO_NEW_MEM_BUF 126 758# define BIO_F_BIO_NREAD 123 759# define BIO_F_BIO_NREAD0 124 760# define BIO_F_BIO_NWRITE 125 761# define BIO_F_BIO_NWRITE0 122 762# define BIO_F_BIO_PUTS 110 763# define BIO_F_BIO_READ 111 764# define BIO_F_BIO_SOCK_INIT 112 765# define BIO_F_BIO_WRITE 113 766# define BIO_F_BUFFER_CTRL 114 767# define BIO_F_CONN_CTRL 127 768# define BIO_F_CONN_STATE 115 769# define BIO_F_FILE_CTRL 116 770# define BIO_F_FILE_READ 130 771# define BIO_F_LINEBUFFER_CTRL 129 772# define BIO_F_MEM_READ 128 773# define BIO_F_MEM_WRITE 117 774# define BIO_F_SSL_NEW 118 775# define BIO_F_WSASTARTUP 119 776 777/* Reason codes. */ 778# define BIO_R_ACCEPT_ERROR 100 779# define BIO_R_BAD_FOPEN_MODE 101 780# define BIO_R_BAD_HOSTNAME_LOOKUP 102 781# define BIO_R_BROKEN_PIPE 124 782# define BIO_R_CONNECT_ERROR 103 783# define BIO_R_EOF_ON_MEMORY_BIO 127 784# define BIO_R_ERROR_SETTING_NBIO 104 785# define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET 105 786# define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET 106 787# define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET 107 788# define BIO_R_INVALID_ARGUMENT 125 789# define BIO_R_INVALID_IP_ADDRESS 108 790# define BIO_R_IN_USE 123 791# define BIO_R_KEEPALIVE 109 792# define BIO_R_NBIO_CONNECT_ERROR 110 793# define BIO_R_NO_ACCEPT_PORT_SPECIFIED 111 794# define BIO_R_NO_HOSTNAME_SPECIFIED 112 795# define BIO_R_NO_PORT_DEFINED 113 796# define BIO_R_NO_PORT_SPECIFIED 114 797# define BIO_R_NO_SUCH_FILE 128 798# define BIO_R_NULL_PARAMETER 115 799# define BIO_R_TAG_MISMATCH 116 800# define BIO_R_UNABLE_TO_BIND_SOCKET 117 801# define BIO_R_UNABLE_TO_CREATE_SOCKET 118 802# define BIO_R_UNABLE_TO_LISTEN_SOCKET 119 803# define BIO_R_UNINITIALIZED 120 804# define BIO_R_UNSUPPORTED_METHOD 121 805# define BIO_R_WRITE_TO_READ_ONLY_BIO 126 806# define BIO_R_WSASTARTUP 122 807 808#ifdef __cplusplus 809} 810#endif 811#endif 812