bio.h revision 167612
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 99#define BIO_TYPE_DESCRIPTOR 0x0100 /* socket, fd, connect or accept */ 100#define BIO_TYPE_FILTER 0x0200 101#define BIO_TYPE_SOURCE_SINK 0x0400 102 103/* BIO_FILENAME_READ|BIO_CLOSE to open or close on free. 104 * BIO_set_fp(in,stdin,BIO_NOCLOSE); */ 105#define BIO_NOCLOSE 0x00 106#define BIO_CLOSE 0x01 107 108/* These are used in the following macros and are passed to 109 * BIO_ctrl() */ 110#define BIO_CTRL_RESET 1 /* opt - rewind/zero etc */ 111#define BIO_CTRL_EOF 2 /* opt - are we at the eof */ 112#define BIO_CTRL_INFO 3 /* opt - extra tit-bits */ 113#define BIO_CTRL_SET 4 /* man - set the 'IO' type */ 114#define BIO_CTRL_GET 5 /* man - get the 'IO' type */ 115#define BIO_CTRL_PUSH 6 /* opt - internal, used to signify change */ 116#define BIO_CTRL_POP 7 /* opt - internal, used to signify change */ 117#define BIO_CTRL_GET_CLOSE 8 /* man - set the 'close' on free */ 118#define BIO_CTRL_SET_CLOSE 9 /* man - set the 'close' on free */ 119#define BIO_CTRL_PENDING 10 /* opt - is their more data buffered */ 120#define BIO_CTRL_FLUSH 11 /* opt - 'flush' buffered output */ 121#define BIO_CTRL_DUP 12 /* man - extra stuff for 'duped' BIO */ 122#define BIO_CTRL_WPENDING 13 /* opt - number of bytes still to write */ 123/* callback is int cb(BIO *bio,state,ret); */ 124#define BIO_CTRL_SET_CALLBACK 14 /* opt - set callback function */ 125#define BIO_CTRL_GET_CALLBACK 15 /* opt - set callback function */ 126 127#define BIO_CTRL_SET_FILENAME 30 /* BIO_s_file special */ 128 129/* dgram BIO stuff */ 130#define BIO_CTRL_DGRAM_CONNECT 31 /* BIO dgram special */ 131#define BIO_CTRL_DGRAM_SET_CONNECTED 32 /* allow for an externally 132 * connected socket to be 133 * passed in */ 134#define BIO_CTRL_DGRAM_SET_RECV_TIMEOUT 33 /* setsockopt, essentially */ 135#define BIO_CTRL_DGRAM_GET_RECV_TIMEOUT 34 /* getsockopt, essentially */ 136#define BIO_CTRL_DGRAM_SET_SEND_TIMEOUT 35 /* setsockopt, essentially */ 137#define BIO_CTRL_DGRAM_GET_SEND_TIMEOUT 36 /* getsockopt, essentially */ 138 139#define BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP 37 /* flag whether the last */ 140#define BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP 38 /* I/O operation tiemd out */ 141 142/* #ifdef IP_MTU_DISCOVER */ 143#define BIO_CTRL_DGRAM_MTU_DISCOVER 39 /* set DF bit on egress packets */ 144/* #endif */ 145 146#define BIO_CTRL_DGRAM_QUERY_MTU 40 /* as kernel for current MTU */ 147#define BIO_CTRL_DGRAM_GET_MTU 41 /* get cached value for MTU */ 148#define BIO_CTRL_DGRAM_SET_MTU 42 /* set cached value for 149 * MTU. want to use this 150 * if asking the kernel 151 * fails */ 152 153#define BIO_CTRL_DGRAM_MTU_EXCEEDED 43 /* check whether the MTU 154 * was exceed in the 155 * previous write 156 * operation */ 157 158#define BIO_CTRL_DGRAM_SET_PEER 44 /* Destination for the data */ 159 160 161/* modifiers */ 162#define BIO_FP_READ 0x02 163#define BIO_FP_WRITE 0x04 164#define BIO_FP_APPEND 0x08 165#define BIO_FP_TEXT 0x10 166 167#define BIO_FLAGS_READ 0x01 168#define BIO_FLAGS_WRITE 0x02 169#define BIO_FLAGS_IO_SPECIAL 0x04 170#define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL) 171#define BIO_FLAGS_SHOULD_RETRY 0x08 172#ifndef BIO_FLAGS_UPLINK 173/* "UPLINK" flag denotes file descriptors provided by application. 174 It defaults to 0, as most platforms don't require UPLINK interface. */ 175#define BIO_FLAGS_UPLINK 0 176#endif 177 178/* Used in BIO_gethostbyname() */ 179#define BIO_GHBN_CTRL_HITS 1 180#define BIO_GHBN_CTRL_MISSES 2 181#define BIO_GHBN_CTRL_CACHE_SIZE 3 182#define BIO_GHBN_CTRL_GET_ENTRY 4 183#define BIO_GHBN_CTRL_FLUSH 5 184 185/* Mostly used in the SSL BIO */ 186/* Not used anymore 187 * #define BIO_FLAGS_PROTOCOL_DELAYED_READ 0x10 188 * #define BIO_FLAGS_PROTOCOL_DELAYED_WRITE 0x20 189 * #define BIO_FLAGS_PROTOCOL_STARTUP 0x40 190 */ 191 192#define BIO_FLAGS_BASE64_NO_NL 0x100 193 194/* This is used with memory BIOs: it means we shouldn't free up or change the 195 * data in any way. 196 */ 197#define BIO_FLAGS_MEM_RDONLY 0x200 198 199typedef struct bio_st BIO; 200 201void BIO_set_flags(BIO *b, int flags); 202int BIO_test_flags(const BIO *b, int flags); 203void BIO_clear_flags(BIO *b, int flags); 204 205#define BIO_get_flags(b) BIO_test_flags(b, ~(0x0)) 206#define BIO_set_retry_special(b) \ 207 BIO_set_flags(b, (BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY)) 208#define BIO_set_retry_read(b) \ 209 BIO_set_flags(b, (BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY)) 210#define BIO_set_retry_write(b) \ 211 BIO_set_flags(b, (BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY)) 212 213/* These are normally used internally in BIOs */ 214#define BIO_clear_retry_flags(b) \ 215 BIO_clear_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY)) 216#define BIO_get_retry_flags(b) \ 217 BIO_test_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY)) 218 219/* These should be used by the application to tell why we should retry */ 220#define BIO_should_read(a) BIO_test_flags(a, BIO_FLAGS_READ) 221#define BIO_should_write(a) BIO_test_flags(a, BIO_FLAGS_WRITE) 222#define BIO_should_io_special(a) BIO_test_flags(a, BIO_FLAGS_IO_SPECIAL) 223#define BIO_retry_type(a) BIO_test_flags(a, BIO_FLAGS_RWS) 224#define BIO_should_retry(a) BIO_test_flags(a, BIO_FLAGS_SHOULD_RETRY) 225 226/* The next three are used in conjunction with the 227 * BIO_should_io_special() condition. After this returns true, 228 * BIO *BIO_get_retry_BIO(BIO *bio, int *reason); will walk the BIO 229 * stack and return the 'reason' for the special and the offending BIO. 230 * Given a BIO, BIO_get_retry_reason(bio) will return the code. */ 231/* Returned from the SSL bio when the certificate retrieval code had an error */ 232#define BIO_RR_SSL_X509_LOOKUP 0x01 233/* Returned from the connect BIO when a connect would have blocked */ 234#define BIO_RR_CONNECT 0x02 235/* Returned from the accept BIO when an accept would have blocked */ 236#define BIO_RR_ACCEPT 0x03 237 238/* These are passed by the BIO callback */ 239#define BIO_CB_FREE 0x01 240#define BIO_CB_READ 0x02 241#define BIO_CB_WRITE 0x03 242#define BIO_CB_PUTS 0x04 243#define BIO_CB_GETS 0x05 244#define BIO_CB_CTRL 0x06 245 246/* The callback is called before and after the underling operation, 247 * The BIO_CB_RETURN flag indicates if it is after the call */ 248#define BIO_CB_RETURN 0x80 249#define BIO_CB_return(a) ((a)|BIO_CB_RETURN)) 250#define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN)) 251#define BIO_cb_post(a) ((a)&BIO_CB_RETURN) 252 253long (*BIO_get_callback(const BIO *b)) (struct bio_st *,int,const char *,int, long,long); 254void BIO_set_callback(BIO *b, 255 long (*callback)(struct bio_st *,int,const char *,int, long,long)); 256char *BIO_get_callback_arg(const BIO *b); 257void BIO_set_callback_arg(BIO *b, char *arg); 258 259const char * BIO_method_name(const BIO *b); 260int BIO_method_type(const BIO *b); 261 262typedef void bio_info_cb(struct bio_st *, int, const char *, int, long, long); 263 264#ifndef OPENSSL_SYS_WIN16 265typedef struct bio_method_st 266 { 267 int type; 268 const char *name; 269 int (*bwrite)(BIO *, const char *, int); 270 int (*bread)(BIO *, char *, int); 271 int (*bputs)(BIO *, const char *); 272 int (*bgets)(BIO *, char *, int); 273 long (*ctrl)(BIO *, int, long, void *); 274 int (*create)(BIO *); 275 int (*destroy)(BIO *); 276 long (*callback_ctrl)(BIO *, int, bio_info_cb *); 277 } BIO_METHOD; 278#else 279typedef struct bio_method_st 280 { 281 int type; 282 const char *name; 283 int (_far *bwrite)(); 284 int (_far *bread)(); 285 int (_far *bputs)(); 286 int (_far *bgets)(); 287 long (_far *ctrl)(); 288 int (_far *create)(); 289 int (_far *destroy)(); 290 long (_far *callback_ctrl)(); 291 } BIO_METHOD; 292#endif 293 294struct bio_st 295 { 296 BIO_METHOD *method; 297 /* bio, mode, argp, argi, argl, ret */ 298 long (*callback)(struct bio_st *,int,const char *,int, long,long); 299 char *cb_arg; /* first argument for the callback */ 300 301 int init; 302 int shutdown; 303 int flags; /* extra storage */ 304 int retry_reason; 305 int num; 306 void *ptr; 307 struct bio_st *next_bio; /* used by filter BIOs */ 308 struct bio_st *prev_bio; /* used by filter BIOs */ 309 int references; 310 unsigned long num_read; 311 unsigned long num_write; 312 313 CRYPTO_EX_DATA ex_data; 314 }; 315 316DECLARE_STACK_OF(BIO) 317 318typedef struct bio_f_buffer_ctx_struct 319 { 320 /* BIO *bio; */ /* this is now in the BIO struct */ 321 int ibuf_size; /* how big is the input buffer */ 322 int obuf_size; /* how big is the output buffer */ 323 324 char *ibuf; /* the char array */ 325 int ibuf_len; /* how many bytes are in it */ 326 int ibuf_off; /* write/read offset */ 327 328 char *obuf; /* the char array */ 329 int obuf_len; /* how many bytes are in it */ 330 int obuf_off; /* write/read offset */ 331 } BIO_F_BUFFER_CTX; 332 333/* connect BIO stuff */ 334#define BIO_CONN_S_BEFORE 1 335#define BIO_CONN_S_GET_IP 2 336#define BIO_CONN_S_GET_PORT 3 337#define BIO_CONN_S_CREATE_SOCKET 4 338#define BIO_CONN_S_CONNECT 5 339#define BIO_CONN_S_OK 6 340#define BIO_CONN_S_BLOCKED_CONNECT 7 341#define BIO_CONN_S_NBIO 8 342/*#define BIO_CONN_get_param_hostname BIO_ctrl */ 343 344#define BIO_C_SET_CONNECT 100 345#define BIO_C_DO_STATE_MACHINE 101 346#define BIO_C_SET_NBIO 102 347#define BIO_C_SET_PROXY_PARAM 103 348#define BIO_C_SET_FD 104 349#define BIO_C_GET_FD 105 350#define BIO_C_SET_FILE_PTR 106 351#define BIO_C_GET_FILE_PTR 107 352#define BIO_C_SET_FILENAME 108 353#define BIO_C_SET_SSL 109 354#define BIO_C_GET_SSL 110 355#define BIO_C_SET_MD 111 356#define BIO_C_GET_MD 112 357#define BIO_C_GET_CIPHER_STATUS 113 358#define BIO_C_SET_BUF_MEM 114 359#define BIO_C_GET_BUF_MEM_PTR 115 360#define BIO_C_GET_BUFF_NUM_LINES 116 361#define BIO_C_SET_BUFF_SIZE 117 362#define BIO_C_SET_ACCEPT 118 363#define BIO_C_SSL_MODE 119 364#define BIO_C_GET_MD_CTX 120 365#define BIO_C_GET_PROXY_PARAM 121 366#define BIO_C_SET_BUFF_READ_DATA 122 /* data to read first */ 367#define BIO_C_GET_CONNECT 123 368#define BIO_C_GET_ACCEPT 124 369#define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125 370#define BIO_C_GET_SSL_NUM_RENEGOTIATES 126 371#define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127 372#define BIO_C_FILE_SEEK 128 373#define BIO_C_GET_CIPHER_CTX 129 374#define BIO_C_SET_BUF_MEM_EOF_RETURN 130/*return end of input value*/ 375#define BIO_C_SET_BIND_MODE 131 376#define BIO_C_GET_BIND_MODE 132 377#define BIO_C_FILE_TELL 133 378#define BIO_C_GET_SOCKS 134 379#define BIO_C_SET_SOCKS 135 380 381#define BIO_C_SET_WRITE_BUF_SIZE 136/* for BIO_s_bio */ 382#define BIO_C_GET_WRITE_BUF_SIZE 137 383#define BIO_C_MAKE_BIO_PAIR 138 384#define BIO_C_DESTROY_BIO_PAIR 139 385#define BIO_C_GET_WRITE_GUARANTEE 140 386#define BIO_C_GET_READ_REQUEST 141 387#define BIO_C_SHUTDOWN_WR 142 388#define BIO_C_NREAD0 143 389#define BIO_C_NREAD 144 390#define BIO_C_NWRITE0 145 391#define BIO_C_NWRITE 146 392#define BIO_C_RESET_READ_REQUEST 147 393#define BIO_C_SET_MD_CTX 148 394 395 396#define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,arg) 397#define BIO_get_app_data(s) BIO_get_ex_data(s,0) 398 399/* BIO_s_connect() and BIO_s_socks4a_connect() */ 400#define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name) 401#define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port) 402#define BIO_set_conn_ip(b,ip) BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip) 403#define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port) 404#define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0) 405#define BIO_get_conn_port(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1) 406#define BIO_get_conn_ip(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,2) 407#define BIO_get_conn_int_port(b) BIO_int_ctrl(b,BIO_C_GET_CONNECT,3) 408 409 410#define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) 411 412/* BIO_s_accept_socket() */ 413#define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name) 414#define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0) 415/* #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */ 416#define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?"a":NULL) 417#define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio) 418 419#define BIO_BIND_NORMAL 0 420#define BIO_BIND_REUSEADDR_IF_UNUSED 1 421#define BIO_BIND_REUSEADDR 2 422#define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL) 423#define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL) 424 425#define BIO_do_connect(b) BIO_do_handshake(b) 426#define BIO_do_accept(b) BIO_do_handshake(b) 427#define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL) 428 429/* BIO_s_proxy_client() */ 430#define BIO_set_url(b,url) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url)) 431#define BIO_set_proxies(b,p) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p)) 432/* BIO_set_nbio(b,n) */ 433#define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s)) 434/* BIO *BIO_get_filter_bio(BIO *bio); */ 435#define BIO_set_proxy_cb(b,cb) BIO_callback_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(void *(*cb)())) 436#define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk) 437#define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool) 438 439#define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp) 440#define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p)) 441#define BIO_get_url(b,url) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url)) 442#define BIO_get_no_connect_return(b) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL) 443 444#define BIO_set_fd(b,fd,c) BIO_int_ctrl(b,BIO_C_SET_FD,c,fd) 445#define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c) 446 447#define BIO_set_fp(b,fp,c) BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp) 448#define BIO_get_fp(b,fpp) BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp) 449 450#define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL) 451#define BIO_tell(b) (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL) 452 453/* name is cast to lose const, but might be better to route through a function 454 so we can do it safely */ 455#ifdef CONST_STRICT 456/* If you are wondering why this isn't defined, its because CONST_STRICT is 457 * purely a compile-time kludge to allow const to be checked. 458 */ 459int BIO_read_filename(BIO *b,const char *name); 460#else 461#define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 462 BIO_CLOSE|BIO_FP_READ,(char *)name) 463#endif 464#define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 465 BIO_CLOSE|BIO_FP_WRITE,name) 466#define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 467 BIO_CLOSE|BIO_FP_APPEND,name) 468#define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 469 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name) 470 471/* WARNING WARNING, this ups the reference count on the read bio of the 472 * SSL structure. This is because the ssl read BIO is now pointed to by 473 * the next_bio field in the bio. So when you free the BIO, make sure 474 * you are doing a BIO_free_all() to catch the underlying BIO. */ 475#define BIO_set_ssl(b,ssl,c) BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl) 476#define BIO_get_ssl(b,sslp) BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp) 477#define BIO_set_ssl_mode(b,client) BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL) 478#define BIO_set_ssl_renegotiate_bytes(b,num) \ 479 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL); 480#define BIO_get_num_renegotiates(b) \ 481 BIO_ctrl(b,BIO_C_GET_SSL_NUM_RENEGOTIATES,0,NULL); 482#define BIO_set_ssl_renegotiate_timeout(b,seconds) \ 483 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL); 484 485/* defined in evp.h */ 486/* #define BIO_set_md(b,md) BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */ 487 488#define BIO_get_mem_data(b,pp) BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp) 489#define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm) 490#define BIO_get_mem_ptr(b,pp) BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp) 491#define BIO_set_mem_eof_return(b,v) \ 492 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL) 493 494/* For the BIO_f_buffer() type */ 495#define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL) 496#define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL) 497#define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0) 498#define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1) 499#define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf) 500 501/* Don't use the next one unless you know what you are doing :-) */ 502#define BIO_dup_state(b,ret) BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret)) 503 504#define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL) 505#define BIO_eof(b) (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL) 506#define BIO_set_close(b,c) (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL) 507#define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL) 508#define BIO_pending(b) (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL) 509#define BIO_wpending(b) (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL) 510/* ...pending macros have inappropriate return type */ 511size_t BIO_ctrl_pending(BIO *b); 512size_t BIO_ctrl_wpending(BIO *b); 513#define BIO_flush(b) (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL) 514#define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0, \ 515 cbp) 516#define BIO_set_info_callback(b,cb) (int)BIO_callback_ctrl(b,BIO_CTRL_SET_CALLBACK,cb) 517 518/* For the BIO_f_buffer() type */ 519#define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL) 520 521/* For BIO_s_bio() */ 522#define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL) 523#define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL) 524#define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2) 525#define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL) 526#define BIO_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL) 527/* macros with inappropriate type -- but ...pending macros use int too: */ 528#define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL) 529#define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL) 530size_t BIO_ctrl_get_write_guarantee(BIO *b); 531size_t BIO_ctrl_get_read_request(BIO *b); 532int BIO_ctrl_reset_read_request(BIO *b); 533 534/* ctrl macros for dgram */ 535#define BIO_ctrl_dgram_connect(b,peer) \ 536 (int)BIO_ctrl(b,BIO_CTRL_DGRAM_CONNECT,0, (char *)peer) 537#define BIO_ctrl_set_connected(b, state, peer) \ 538 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_CONNECTED, state, (char *)peer) 539#define BIO_dgram_recv_timedout(b) \ 540 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP, 0, NULL) 541#define BIO_dgram_send_timedout(b) \ 542 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP, 0, NULL) 543#define BIO_dgram_set_peer(b,peer) \ 544 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, (char *)peer) 545 546/* These two aren't currently implemented */ 547/* int BIO_get_ex_num(BIO *bio); */ 548/* void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)()); */ 549int BIO_set_ex_data(BIO *bio,int idx,void *data); 550void *BIO_get_ex_data(BIO *bio,int idx); 551int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 552 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func); 553unsigned long BIO_number_read(BIO *bio); 554unsigned long BIO_number_written(BIO *bio); 555 556# ifndef OPENSSL_NO_FP_API 557# if defined(OPENSSL_SYS_WIN16) && defined(_WINDLL) 558BIO_METHOD *BIO_s_file_internal(void); 559BIO *BIO_new_file_internal(char *filename, char *mode); 560BIO *BIO_new_fp_internal(FILE *stream, int close_flag); 561# define BIO_s_file BIO_s_file_internal 562# define BIO_new_file BIO_new_file_internal 563# define BIO_new_fp BIO_new_fp_internal 564# else /* FP_API */ 565BIO_METHOD *BIO_s_file(void ); 566BIO *BIO_new_file(const char *filename, const char *mode); 567BIO *BIO_new_fp(FILE *stream, int close_flag); 568# define BIO_s_file_internal BIO_s_file 569# define BIO_new_file_internal BIO_new_file 570# define BIO_new_fp_internal BIO_s_file 571# endif /* FP_API */ 572# endif 573BIO * BIO_new(BIO_METHOD *type); 574int BIO_set(BIO *a,BIO_METHOD *type); 575int BIO_free(BIO *a); 576void BIO_vfree(BIO *a); 577int BIO_read(BIO *b, void *data, int len); 578int BIO_gets(BIO *bp,char *buf, int size); 579int BIO_write(BIO *b, const void *data, int len); 580int BIO_puts(BIO *bp,const char *buf); 581int BIO_indent(BIO *b,int indent,int max); 582long BIO_ctrl(BIO *bp,int cmd,long larg,void *parg); 583long BIO_callback_ctrl(BIO *b, int cmd, void (*fp)(struct bio_st *, int, const char *, int, long, long)); 584char * BIO_ptr_ctrl(BIO *bp,int cmd,long larg); 585long BIO_int_ctrl(BIO *bp,int cmd,long larg,int iarg); 586BIO * BIO_push(BIO *b,BIO *append); 587BIO * BIO_pop(BIO *b); 588void BIO_free_all(BIO *a); 589BIO * BIO_find_type(BIO *b,int bio_type); 590BIO * BIO_next(BIO *b); 591BIO * BIO_get_retry_BIO(BIO *bio, int *reason); 592int BIO_get_retry_reason(BIO *bio); 593BIO * BIO_dup_chain(BIO *in); 594 595int BIO_nread0(BIO *bio, char **buf); 596int BIO_nread(BIO *bio, char **buf, int num); 597int BIO_nwrite0(BIO *bio, char **buf); 598int BIO_nwrite(BIO *bio, char **buf, int num); 599 600#ifndef OPENSSL_SYS_WIN16 601long BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi, 602 long argl,long ret); 603#else 604long _far _loadds BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi, 605 long argl,long ret); 606#endif 607 608BIO_METHOD *BIO_s_mem(void); 609BIO *BIO_new_mem_buf(void *buf, int len); 610BIO_METHOD *BIO_s_socket(void); 611BIO_METHOD *BIO_s_connect(void); 612BIO_METHOD *BIO_s_accept(void); 613BIO_METHOD *BIO_s_fd(void); 614#ifndef OPENSSL_SYS_OS2 615BIO_METHOD *BIO_s_log(void); 616#endif 617BIO_METHOD *BIO_s_bio(void); 618BIO_METHOD *BIO_s_null(void); 619BIO_METHOD *BIO_f_null(void); 620BIO_METHOD *BIO_f_buffer(void); 621#ifdef OPENSSL_SYS_VMS 622BIO_METHOD *BIO_f_linebuffer(void); 623#endif 624BIO_METHOD *BIO_f_nbio_test(void); 625#ifndef OPENSSL_NO_DGRAM 626BIO_METHOD *BIO_s_datagram(void); 627#endif 628 629/* BIO_METHOD *BIO_f_ber(void); */ 630 631int BIO_sock_should_retry(int i); 632int BIO_sock_non_fatal_error(int error); 633int BIO_dgram_non_fatal_error(int error); 634 635int BIO_fd_should_retry(int i); 636int BIO_fd_non_fatal_error(int error); 637int BIO_dump_cb(int (*cb)(const void *data, size_t len, void *u), 638 void *u, const char *s, int len); 639int BIO_dump_indent_cb(int (*cb)(const void *data, size_t len, void *u), 640 void *u, const char *s, int len, int indent); 641int BIO_dump(BIO *b,const char *bytes,int len); 642int BIO_dump_indent(BIO *b,const char *bytes,int len,int indent); 643#ifndef OPENSSL_NO_FP_API 644int BIO_dump_fp(FILE *fp, const char *s, int len); 645int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent); 646#endif 647struct hostent *BIO_gethostbyname(const char *name); 648/* We might want a thread-safe interface too: 649 * struct hostent *BIO_gethostbyname_r(const char *name, 650 * struct hostent *result, void *buffer, size_t buflen); 651 * or something similar (caller allocates a struct hostent, 652 * pointed to by "result", and additional buffer space for the various 653 * substructures; if the buffer does not suffice, NULL is returned 654 * and an appropriate error code is set). 655 */ 656int BIO_sock_error(int sock); 657int BIO_socket_ioctl(int fd, long type, void *arg); 658int BIO_socket_nbio(int fd,int mode); 659int BIO_get_port(const char *str, unsigned short *port_ptr); 660int BIO_get_host_ip(const char *str, unsigned char *ip); 661int BIO_get_accept_socket(char *host_port,int mode); 662int BIO_accept(int sock,char **ip_port); 663int BIO_sock_init(void ); 664void BIO_sock_cleanup(void); 665int BIO_set_tcp_ndelay(int sock,int turn_on); 666 667BIO *BIO_new_socket(int sock, int close_flag); 668BIO *BIO_new_dgram(int fd, int close_flag); 669BIO *BIO_new_fd(int fd, int close_flag); 670BIO *BIO_new_connect(char *host_port); 671BIO *BIO_new_accept(char *host_port); 672 673int BIO_new_bio_pair(BIO **bio1, size_t writebuf1, 674 BIO **bio2, size_t writebuf2); 675/* If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints. 676 * Otherwise returns 0 and sets *bio1 and *bio2 to NULL. 677 * Size 0 uses default value. 678 */ 679 680void BIO_copy_next_retry(BIO *b); 681 682/*long BIO_ghbn_ctrl(int cmd,int iarg,char *parg);*/ 683 684#ifdef __GNUC__ 685# define __bio_h__attr__ __attribute__ 686#else 687# define __bio_h__attr__(x) 688#endif 689int BIO_printf(BIO *bio, const char *format, ...) 690 __bio_h__attr__((__format__(__printf__,2,3))); 691int BIO_vprintf(BIO *bio, const char *format, va_list args) 692 __bio_h__attr__((__format__(__printf__,2,0))); 693int BIO_snprintf(char *buf, size_t n, const char *format, ...) 694 __bio_h__attr__((__format__(__printf__,3,4))); 695int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args) 696 __bio_h__attr__((__format__(__printf__,3,0))); 697#undef __bio_h__attr__ 698 699/* BEGIN ERROR CODES */ 700/* The following lines are auto generated by the script mkerr.pl. Any changes 701 * made after this point may be overwritten when the script is next run. 702 */ 703void ERR_load_BIO_strings(void); 704 705/* Error codes for the BIO functions. */ 706 707/* Function codes. */ 708#define BIO_F_ACPT_STATE 100 709#define BIO_F_BIO_ACCEPT 101 710#define BIO_F_BIO_BER_GET_HEADER 102 711#define BIO_F_BIO_CALLBACK_CTRL 131 712#define BIO_F_BIO_CTRL 103 713#define BIO_F_BIO_GETHOSTBYNAME 120 714#define BIO_F_BIO_GETS 104 715#define BIO_F_BIO_GET_ACCEPT_SOCKET 105 716#define BIO_F_BIO_GET_HOST_IP 106 717#define BIO_F_BIO_GET_PORT 107 718#define BIO_F_BIO_MAKE_PAIR 121 719#define BIO_F_BIO_NEW 108 720#define BIO_F_BIO_NEW_FILE 109 721#define BIO_F_BIO_NEW_MEM_BUF 126 722#define BIO_F_BIO_NREAD 123 723#define BIO_F_BIO_NREAD0 124 724#define BIO_F_BIO_NWRITE 125 725#define BIO_F_BIO_NWRITE0 122 726#define BIO_F_BIO_PUTS 110 727#define BIO_F_BIO_READ 111 728#define BIO_F_BIO_SOCK_INIT 112 729#define BIO_F_BIO_WRITE 113 730#define BIO_F_BUFFER_CTRL 114 731#define BIO_F_CONN_CTRL 127 732#define BIO_F_CONN_STATE 115 733#define BIO_F_FILE_CTRL 116 734#define BIO_F_FILE_READ 130 735#define BIO_F_LINEBUFFER_CTRL 129 736#define BIO_F_MEM_READ 128 737#define BIO_F_MEM_WRITE 117 738#define BIO_F_SSL_NEW 118 739#define BIO_F_WSASTARTUP 119 740 741/* Reason codes. */ 742#define BIO_R_ACCEPT_ERROR 100 743#define BIO_R_BAD_FOPEN_MODE 101 744#define BIO_R_BAD_HOSTNAME_LOOKUP 102 745#define BIO_R_BROKEN_PIPE 124 746#define BIO_R_CONNECT_ERROR 103 747#define BIO_R_EOF_ON_MEMORY_BIO 127 748#define BIO_R_ERROR_SETTING_NBIO 104 749#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET 105 750#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET 106 751#define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET 107 752#define BIO_R_INVALID_ARGUMENT 125 753#define BIO_R_INVALID_IP_ADDRESS 108 754#define BIO_R_IN_USE 123 755#define BIO_R_KEEPALIVE 109 756#define BIO_R_NBIO_CONNECT_ERROR 110 757#define BIO_R_NO_ACCEPT_PORT_SPECIFIED 111 758#define BIO_R_NO_HOSTNAME_SPECIFIED 112 759#define BIO_R_NO_PORT_DEFINED 113 760#define BIO_R_NO_PORT_SPECIFIED 114 761#define BIO_R_NO_SUCH_FILE 128 762#define BIO_R_NULL_PARAMETER 115 763#define BIO_R_TAG_MISMATCH 116 764#define BIO_R_UNABLE_TO_BIND_SOCKET 117 765#define BIO_R_UNABLE_TO_CREATE_SOCKET 118 766#define BIO_R_UNABLE_TO_LISTEN_SOCKET 119 767#define BIO_R_UNINITIALIZED 120 768#define BIO_R_UNSUPPORTED_METHOD 121 769#define BIO_R_WRITE_TO_READ_ONLY_BIO 126 770#define BIO_R_WSASTARTUP 122 771 772#ifdef __cplusplus 773} 774#endif 775#endif 776