bio.h revision 100928
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#ifndef NO_FP_API 63# include <stdio.h> 64#endif 65#include <stdarg.h> 66 67#include <openssl/crypto.h> 68 69#ifdef __cplusplus 70extern "C" { 71#endif 72 73/* These are the 'types' of BIOs */ 74#define BIO_TYPE_NONE 0 75#define BIO_TYPE_MEM (1|0x0400) 76#define BIO_TYPE_FILE (2|0x0400) 77 78#define BIO_TYPE_FD (4|0x0400|0x0100) 79#define BIO_TYPE_SOCKET (5|0x0400|0x0100) 80#define BIO_TYPE_NULL (6|0x0400) 81#define BIO_TYPE_SSL (7|0x0200) 82#define BIO_TYPE_MD (8|0x0200) /* passive filter */ 83#define BIO_TYPE_BUFFER (9|0x0200) /* filter */ 84#define BIO_TYPE_CIPHER (10|0x0200) /* filter */ 85#define BIO_TYPE_BASE64 (11|0x0200) /* filter */ 86#define BIO_TYPE_CONNECT (12|0x0400|0x0100) /* socket - connect */ 87#define BIO_TYPE_ACCEPT (13|0x0400|0x0100) /* socket for accept */ 88#define BIO_TYPE_PROXY_CLIENT (14|0x0200) /* client proxy BIO */ 89#define BIO_TYPE_PROXY_SERVER (15|0x0200) /* server proxy BIO */ 90#define BIO_TYPE_NBIO_TEST (16|0x0200) /* server proxy BIO */ 91#define BIO_TYPE_NULL_FILTER (17|0x0200) 92#define BIO_TYPE_BER (18|0x0200) /* BER -> bin filter */ 93#define BIO_TYPE_BIO (19|0x0400) /* (half a) BIO pair */ 94#define BIO_TYPE_LINEBUFFER (20|0x0200) /* filter */ 95 96#define BIO_TYPE_DESCRIPTOR 0x0100 /* socket, fd, connect or accept */ 97#define BIO_TYPE_FILTER 0x0200 98#define BIO_TYPE_SOURCE_SINK 0x0400 99 100/* BIO_FILENAME_READ|BIO_CLOSE to open or close on free. 101 * BIO_set_fp(in,stdin,BIO_NOCLOSE); */ 102#define BIO_NOCLOSE 0x00 103#define BIO_CLOSE 0x01 104 105/* These are used in the following macros and are passed to 106 * BIO_ctrl() */ 107#define BIO_CTRL_RESET 1 /* opt - rewind/zero etc */ 108#define BIO_CTRL_EOF 2 /* opt - are we at the eof */ 109#define BIO_CTRL_INFO 3 /* opt - extra tit-bits */ 110#define BIO_CTRL_SET 4 /* man - set the 'IO' type */ 111#define BIO_CTRL_GET 5 /* man - get the 'IO' type */ 112#define BIO_CTRL_PUSH 6 /* opt - internal, used to signify change */ 113#define BIO_CTRL_POP 7 /* opt - internal, used to signify change */ 114#define BIO_CTRL_GET_CLOSE 8 /* man - set the 'close' on free */ 115#define BIO_CTRL_SET_CLOSE 9 /* man - set the 'close' on free */ 116#define BIO_CTRL_PENDING 10 /* opt - is their more data buffered */ 117#define BIO_CTRL_FLUSH 11 /* opt - 'flush' buffered output */ 118#define BIO_CTRL_DUP 12 /* man - extra stuff for 'duped' BIO */ 119#define BIO_CTRL_WPENDING 13 /* opt - number of bytes still to write */ 120/* callback is int cb(BIO *bio,state,ret); */ 121#define BIO_CTRL_SET_CALLBACK 14 /* opt - set callback function */ 122#define BIO_CTRL_GET_CALLBACK 15 /* opt - set callback function */ 123 124#define BIO_CTRL_SET_FILENAME 30 /* BIO_s_file special */ 125 126/* modifiers */ 127#define BIO_FP_READ 0x02 128#define BIO_FP_WRITE 0x04 129#define BIO_FP_APPEND 0x08 130#define BIO_FP_TEXT 0x10 131 132#define BIO_FLAGS_READ 0x01 133#define BIO_FLAGS_WRITE 0x02 134#define BIO_FLAGS_IO_SPECIAL 0x04 135#define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL) 136#define BIO_FLAGS_SHOULD_RETRY 0x08 137 138/* Used in BIO_gethostbyname() */ 139#define BIO_GHBN_CTRL_HITS 1 140#define BIO_GHBN_CTRL_MISSES 2 141#define BIO_GHBN_CTRL_CACHE_SIZE 3 142#define BIO_GHBN_CTRL_GET_ENTRY 4 143#define BIO_GHBN_CTRL_FLUSH 5 144 145/* Mostly used in the SSL BIO */ 146/* Not used anymore 147 * #define BIO_FLAGS_PROTOCOL_DELAYED_READ 0x10 148 * #define BIO_FLAGS_PROTOCOL_DELAYED_WRITE 0x20 149 * #define BIO_FLAGS_PROTOCOL_STARTUP 0x40 150 */ 151 152#define BIO_FLAGS_BASE64_NO_NL 0x100 153 154/* This is used with memory BIOs: it means we shouldn't free up or change the 155 * data in any way. 156 */ 157#define BIO_FLAGS_MEM_RDONLY 0x200 158 159#define BIO_set_flags(b,f) ((b)->flags|=(f)) 160#define BIO_get_flags(b) ((b)->flags) 161#define BIO_set_retry_special(b) \ 162 ((b)->flags|=(BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY)) 163#define BIO_set_retry_read(b) \ 164 ((b)->flags|=(BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY)) 165#define BIO_set_retry_write(b) \ 166 ((b)->flags|=(BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY)) 167 168/* These are normally used internally in BIOs */ 169#define BIO_clear_flags(b,f) ((b)->flags&= ~(f)) 170#define BIO_clear_retry_flags(b) \ 171 ((b)->flags&= ~(BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY)) 172#define BIO_get_retry_flags(b) \ 173 ((b)->flags&(BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY)) 174 175/* These should be used by the application to tell why we should retry */ 176#define BIO_should_read(a) ((a)->flags & BIO_FLAGS_READ) 177#define BIO_should_write(a) ((a)->flags & BIO_FLAGS_WRITE) 178#define BIO_should_io_special(a) ((a)->flags & BIO_FLAGS_IO_SPECIAL) 179#define BIO_retry_type(a) ((a)->flags & BIO_FLAGS_RWS) 180#define BIO_should_retry(a) ((a)->flags & BIO_FLAGS_SHOULD_RETRY) 181 182/* The next two are used in conjunction with the 183 * BIO_should_io_special() condition. After this returns true, 184 * BIO *BIO_get_retry_BIO(BIO *bio, int *reason); will walk the BIO 185 * stack and return the 'reason' for the special and the offending BIO. 186 * Given a BIO, BIO_get_retry_reason(bio) will return the code. */ 187/* Returned from the SSL bio when the certificate retrieval code had an error */ 188#define BIO_RR_SSL_X509_LOOKUP 0x01 189/* Returned from the connect BIO when a connect would have blocked */ 190#define BIO_RR_CONNECT 0x02 191 192/* These are passed by the BIO callback */ 193#define BIO_CB_FREE 0x01 194#define BIO_CB_READ 0x02 195#define BIO_CB_WRITE 0x03 196#define BIO_CB_PUTS 0x04 197#define BIO_CB_GETS 0x05 198#define BIO_CB_CTRL 0x06 199 200/* The callback is called before and after the underling operation, 201 * The BIO_CB_RETURN flag indicates if it is after the call */ 202#define BIO_CB_RETURN 0x80 203#define BIO_CB_return(a) ((a)|BIO_CB_RETURN)) 204#define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN)) 205#define BIO_cb_post(a) ((a)&BIO_CB_RETURN) 206 207#define BIO_set_callback(b,cb) ((b)->callback=(cb)) 208#define BIO_set_callback_arg(b,arg) ((b)->cb_arg=(char *)(arg)) 209#define BIO_get_callback_arg(b) ((b)->cb_arg) 210#define BIO_get_callback(b) ((b)->callback) 211#define BIO_method_name(b) ((b)->method->name) 212#define BIO_method_type(b) ((b)->method->type) 213 214typedef struct bio_st BIO; 215 216typedef void bio_info_cb(struct bio_st *, int, const char *, int, long, long); 217 218#ifndef WIN16 219typedef struct bio_method_st 220 { 221 int type; 222 const char *name; 223 int (*bwrite)(BIO *, const char *, int); 224 int (*bread)(BIO *, char *, int); 225 int (*bputs)(BIO *, const char *); 226 int (*bgets)(BIO *, char *, int); 227 long (*ctrl)(BIO *, int, long, void *); 228 int (*create)(BIO *); 229 int (*destroy)(BIO *); 230 long (*callback_ctrl)(BIO *, int, bio_info_cb *); 231 } BIO_METHOD; 232#else 233typedef struct bio_method_st 234 { 235 int type; 236 const char *name; 237 int (_far *bwrite)(); 238 int (_far *bread)(); 239 int (_far *bputs)(); 240 int (_far *bgets)(); 241 long (_far *ctrl)(); 242 int (_far *create)(); 243 int (_far *destroy)(); 244 long (_fat *callback_ctrl)(); 245 } BIO_METHOD; 246#endif 247 248struct bio_st 249 { 250 BIO_METHOD *method; 251 /* bio, mode, argp, argi, argl, ret */ 252 long (*callback)(struct bio_st *,int,const char *,int, long,long); 253 char *cb_arg; /* first argument for the callback */ 254 255 int init; 256 int shutdown; 257 int flags; /* extra storage */ 258 int retry_reason; 259 int num; 260 void *ptr; 261 struct bio_st *next_bio; /* used by filter BIOs */ 262 struct bio_st *prev_bio; /* used by filter BIOs */ 263 int references; 264 unsigned long num_read; 265 unsigned long num_write; 266 267 CRYPTO_EX_DATA ex_data; 268 }; 269 270DECLARE_STACK_OF(BIO) 271 272typedef struct bio_f_buffer_ctx_struct 273 { 274 /* BIO *bio; */ /* this is now in the BIO struct */ 275 int ibuf_size; /* how big is the input buffer */ 276 int obuf_size; /* how big is the output buffer */ 277 278 char *ibuf; /* the char array */ 279 int ibuf_len; /* how many bytes are in it */ 280 int ibuf_off; /* write/read offset */ 281 282 char *obuf; /* the char array */ 283 int obuf_len; /* how many bytes are in it */ 284 int obuf_off; /* write/read offset */ 285 } BIO_F_BUFFER_CTX; 286 287/* connect BIO stuff */ 288#define BIO_CONN_S_BEFORE 1 289#define BIO_CONN_S_GET_IP 2 290#define BIO_CONN_S_GET_PORT 3 291#define BIO_CONN_S_CREATE_SOCKET 4 292#define BIO_CONN_S_CONNECT 5 293#define BIO_CONN_S_OK 6 294#define BIO_CONN_S_BLOCKED_CONNECT 7 295#define BIO_CONN_S_NBIO 8 296/*#define BIO_CONN_get_param_hostname BIO_ctrl */ 297 298#define BIO_C_SET_CONNECT 100 299#define BIO_C_DO_STATE_MACHINE 101 300#define BIO_C_SET_NBIO 102 301#define BIO_C_SET_PROXY_PARAM 103 302#define BIO_C_SET_FD 104 303#define BIO_C_GET_FD 105 304#define BIO_C_SET_FILE_PTR 106 305#define BIO_C_GET_FILE_PTR 107 306#define BIO_C_SET_FILENAME 108 307#define BIO_C_SET_SSL 109 308#define BIO_C_GET_SSL 110 309#define BIO_C_SET_MD 111 310#define BIO_C_GET_MD 112 311#define BIO_C_GET_CIPHER_STATUS 113 312#define BIO_C_SET_BUF_MEM 114 313#define BIO_C_GET_BUF_MEM_PTR 115 314#define BIO_C_GET_BUFF_NUM_LINES 116 315#define BIO_C_SET_BUFF_SIZE 117 316#define BIO_C_SET_ACCEPT 118 317#define BIO_C_SSL_MODE 119 318#define BIO_C_GET_MD_CTX 120 319#define BIO_C_GET_PROXY_PARAM 121 320#define BIO_C_SET_BUFF_READ_DATA 122 /* data to read first */ 321#define BIO_C_GET_CONNECT 123 322#define BIO_C_GET_ACCEPT 124 323#define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125 324#define BIO_C_GET_SSL_NUM_RENEGOTIATES 126 325#define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127 326#define BIO_C_FILE_SEEK 128 327#define BIO_C_GET_CIPHER_CTX 129 328#define BIO_C_SET_BUF_MEM_EOF_RETURN 130/*return end of input value*/ 329#define BIO_C_SET_BIND_MODE 131 330#define BIO_C_GET_BIND_MODE 132 331#define BIO_C_FILE_TELL 133 332#define BIO_C_GET_SOCKS 134 333#define BIO_C_SET_SOCKS 135 334 335#define BIO_C_SET_WRITE_BUF_SIZE 136/* for BIO_s_bio */ 336#define BIO_C_GET_WRITE_BUF_SIZE 137 337#define BIO_C_MAKE_BIO_PAIR 138 338#define BIO_C_DESTROY_BIO_PAIR 139 339#define BIO_C_GET_WRITE_GUARANTEE 140 340#define BIO_C_GET_READ_REQUEST 141 341#define BIO_C_SHUTDOWN_WR 142 342#define BIO_C_NREAD0 143 343#define BIO_C_NREAD 144 344#define BIO_C_NWRITE0 145 345#define BIO_C_NWRITE 146 346#define BIO_C_RESET_READ_REQUEST 147 347 348 349#define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,arg) 350#define BIO_get_app_data(s) BIO_get_ex_data(s,0) 351 352/* BIO_s_connect() and BIO_s_socks4a_connect() */ 353#define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name) 354#define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port) 355#define BIO_set_conn_ip(b,ip) BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip) 356#define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port) 357#define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0) 358#define BIO_get_conn_port(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1) 359#define BIO_get_conn_ip(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,2) 360#define BIO_get_conn_int_port(b) BIO_int_ctrl(b,BIO_C_GET_CONNECT,3) 361 362 363#define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) 364 365/* BIO_s_accept_socket() */ 366#define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name) 367#define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0) 368/* #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */ 369#define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?"a":NULL) 370#define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio) 371 372#define BIO_BIND_NORMAL 0 373#define BIO_BIND_REUSEADDR_IF_UNUSED 1 374#define BIO_BIND_REUSEADDR 2 375#define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL) 376#define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL) 377 378#define BIO_do_connect(b) BIO_do_handshake(b) 379#define BIO_do_accept(b) BIO_do_handshake(b) 380#define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL) 381 382/* BIO_s_proxy_client() */ 383#define BIO_set_url(b,url) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url)) 384#define BIO_set_proxies(b,p) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p)) 385/* BIO_set_nbio(b,n) */ 386#define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s)) 387/* BIO *BIO_get_filter_bio(BIO *bio); */ 388#define BIO_set_proxy_cb(b,cb) BIO_callback_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(void *(*cb)())) 389#define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk) 390#define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool) 391 392#define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp) 393#define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p)) 394#define BIO_get_url(b,url) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url)) 395#define BIO_get_no_connect_return(b) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL) 396 397#define BIO_set_fd(b,fd,c) BIO_int_ctrl(b,BIO_C_SET_FD,c,fd) 398#define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c) 399 400#define BIO_set_fp(b,fp,c) BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp) 401#define BIO_get_fp(b,fpp) BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp) 402 403#define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL) 404#define BIO_tell(b) (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL) 405 406/* name is cast to lose const, but might be better to route through a function 407 so we can do it safely */ 408#ifdef CONST_STRICT 409/* If you are wondering why this isn't defined, its because CONST_STRICT is 410 * purely a compile-time kludge to allow const to be checked. 411 */ 412int BIO_read_filename(BIO *b,const char *name); 413#else 414#define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 415 BIO_CLOSE|BIO_FP_READ,(char *)name) 416#endif 417#define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 418 BIO_CLOSE|BIO_FP_WRITE,name) 419#define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 420 BIO_CLOSE|BIO_FP_APPEND,name) 421#define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 422 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name) 423 424/* WARNING WARNING, this ups the reference count on the read bio of the 425 * SSL structure. This is because the ssl read BIO is now pointed to by 426 * the next_bio field in the bio. So when you free the BIO, make sure 427 * you are doing a BIO_free_all() to catch the underlying BIO. */ 428#define BIO_set_ssl(b,ssl,c) BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl) 429#define BIO_get_ssl(b,sslp) BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp) 430#define BIO_set_ssl_mode(b,client) BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL) 431#define BIO_set_ssl_renegotiate_bytes(b,num) \ 432 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL); 433#define BIO_get_num_renegotiates(b) \ 434 BIO_ctrl(b,BIO_C_GET_SSL_NUM_RENEGOTIATES,0,NULL); 435#define BIO_set_ssl_renegotiate_timeout(b,seconds) \ 436 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL); 437 438/* defined in evp.h */ 439/* #define BIO_set_md(b,md) BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */ 440 441#define BIO_get_mem_data(b,pp) BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp) 442#define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm) 443#define BIO_get_mem_ptr(b,pp) BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp) 444#define BIO_set_mem_eof_return(b,v) \ 445 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL) 446 447/* For the BIO_f_buffer() type */ 448#define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL) 449#define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL) 450#define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0) 451#define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1) 452#define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf) 453 454/* Don't use the next one unless you know what you are doing :-) */ 455#define BIO_dup_state(b,ret) BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret)) 456 457#define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL) 458#define BIO_eof(b) (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL) 459#define BIO_set_close(b,c) (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL) 460#define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL) 461#define BIO_pending(b) (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL) 462#define BIO_wpending(b) (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL) 463/* ...pending macros have inappropriate return type */ 464size_t BIO_ctrl_pending(BIO *b); 465size_t BIO_ctrl_wpending(BIO *b); 466#define BIO_flush(b) (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL) 467#define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0,(bio_info_cb **)(cbp)) 468#define BIO_set_info_callback(b,cb) (int)BIO_callback_ctrl(b,BIO_CTRL_SET_CALLBACK,(bio_info_cb *)(cb)) 469 470/* For the BIO_f_buffer() type */ 471#define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL) 472 473/* For BIO_s_bio() */ 474#define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL) 475#define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL) 476#define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2) 477#define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL) 478#define BIO_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL) 479/* macros with inappropriate type -- but ...pending macros use int too: */ 480#define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL) 481#define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL) 482size_t BIO_ctrl_get_write_guarantee(BIO *b); 483size_t BIO_ctrl_get_read_request(BIO *b); 484int BIO_ctrl_reset_read_request(BIO *b); 485 486/* These two aren't currently implemented */ 487/* int BIO_get_ex_num(BIO *bio); */ 488/* void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)()); */ 489int BIO_set_ex_data(BIO *bio,int idx,void *data); 490void *BIO_get_ex_data(BIO *bio,int idx); 491int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 492 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func); 493unsigned long BIO_number_read(BIO *bio); 494unsigned long BIO_number_written(BIO *bio); 495 496# ifndef NO_FP_API 497# if defined(WIN16) && defined(_WINDLL) 498BIO_METHOD *BIO_s_file_internal(void); 499BIO *BIO_new_file_internal(char *filename, char *mode); 500BIO *BIO_new_fp_internal(FILE *stream, int close_flag); 501# define BIO_s_file BIO_s_file_internal 502# define BIO_new_file BIO_new_file_internal 503# define BIO_new_fp BIO_new_fp_internal 504# else /* FP_API */ 505BIO_METHOD *BIO_s_file(void ); 506BIO *BIO_new_file(const char *filename, const char *mode); 507BIO *BIO_new_fp(FILE *stream, int close_flag); 508# define BIO_s_file_internal BIO_s_file 509# define BIO_new_file_internal BIO_new_file 510# define BIO_new_fp_internal BIO_s_file 511# endif /* FP_API */ 512# endif 513BIO * BIO_new(BIO_METHOD *type); 514int BIO_set(BIO *a,BIO_METHOD *type); 515int BIO_free(BIO *a); 516void BIO_vfree(BIO *a); 517int BIO_read(BIO *b, void *data, int len); 518int BIO_gets(BIO *bp,char *buf, int size); 519int BIO_write(BIO *b, const void *data, int len); 520int BIO_puts(BIO *bp,const char *buf); 521long BIO_ctrl(BIO *bp,int cmd,long larg,void *parg); 522long BIO_callback_ctrl(BIO *b, int cmd, void (*fp)(struct bio_st *, int, const char *, int, long, long)); 523char * BIO_ptr_ctrl(BIO *bp,int cmd,long larg); 524long BIO_int_ctrl(BIO *bp,int cmd,long larg,int iarg); 525BIO * BIO_push(BIO *b,BIO *append); 526BIO * BIO_pop(BIO *b); 527void BIO_free_all(BIO *a); 528BIO * BIO_find_type(BIO *b,int bio_type); 529BIO * BIO_next(BIO *b); 530BIO * BIO_get_retry_BIO(BIO *bio, int *reason); 531int BIO_get_retry_reason(BIO *bio); 532BIO * BIO_dup_chain(BIO *in); 533 534int BIO_nread0(BIO *bio, char **buf); 535int BIO_nread(BIO *bio, char **buf, int num); 536int BIO_nwrite0(BIO *bio, char **buf); 537int BIO_nwrite(BIO *bio, char **buf, int num); 538 539#ifndef WIN16 540long BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi, 541 long argl,long ret); 542#else 543long _far _loadds BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi, 544 long argl,long ret); 545#endif 546 547BIO_METHOD *BIO_s_mem(void); 548BIO *BIO_new_mem_buf(void *buf, int len); 549BIO_METHOD *BIO_s_socket(void); 550BIO_METHOD *BIO_s_connect(void); 551BIO_METHOD *BIO_s_accept(void); 552BIO_METHOD *BIO_s_fd(void); 553BIO_METHOD *BIO_s_log(void); 554BIO_METHOD *BIO_s_bio(void); 555BIO_METHOD *BIO_s_null(void); 556BIO_METHOD *BIO_f_null(void); 557BIO_METHOD *BIO_f_buffer(void); 558#ifdef VMS 559BIO_METHOD *BIO_f_linebuffer(void); 560#endif 561BIO_METHOD *BIO_f_nbio_test(void); 562/* BIO_METHOD *BIO_f_ber(void); */ 563 564int BIO_sock_should_retry(int i); 565int BIO_sock_non_fatal_error(int error); 566int BIO_fd_should_retry(int i); 567int BIO_fd_non_fatal_error(int error); 568int BIO_dump(BIO *b,const char *bytes,int len); 569int BIO_dump_indent(BIO *b,const char *bytes,int len,int indent); 570 571struct hostent *BIO_gethostbyname(const char *name); 572/* We might want a thread-safe interface too: 573 * struct hostent *BIO_gethostbyname_r(const char *name, 574 * struct hostent *result, void *buffer, size_t buflen); 575 * or something similar (caller allocates a struct hostent, 576 * pointed to by "result", and additional buffer space for the various 577 * substructures; if the buffer does not suffice, NULL is returned 578 * and an appropriate error code is set). 579 */ 580int BIO_sock_error(int sock); 581int BIO_socket_ioctl(int fd, long type, unsigned long *arg); 582int BIO_socket_nbio(int fd,int mode); 583int BIO_get_port(const char *str, unsigned short *port_ptr); 584int BIO_get_host_ip(const char *str, unsigned char *ip); 585int BIO_get_accept_socket(char *host_port,int mode); 586int BIO_accept(int sock,char **ip_port); 587int BIO_sock_init(void ); 588void BIO_sock_cleanup(void); 589int BIO_set_tcp_ndelay(int sock,int turn_on); 590 591BIO *BIO_new_socket(int sock, int close_flag); 592BIO *BIO_new_fd(int fd, int close_flag); 593BIO *BIO_new_connect(char *host_port); 594BIO *BIO_new_accept(char *host_port); 595 596int BIO_new_bio_pair(BIO **bio1, size_t writebuf1, 597 BIO **bio2, size_t writebuf2); 598/* If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints. 599 * Otherwise returns 0 and sets *bio1 and *bio2 to NULL. 600 * Size 0 uses default value. 601 */ 602 603void BIO_copy_next_retry(BIO *b); 604 605long BIO_ghbn_ctrl(int cmd,int iarg,char *parg); 606 607int BIO_printf(BIO *bio, const char *format, ...); 608int BIO_vprintf(BIO *bio, const char *format, va_list args); 609int BIO_snprintf(char *buf, size_t n, const char *format, ...); 610int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args); 611 612/* BEGIN ERROR CODES */ 613/* The following lines are auto generated by the script mkerr.pl. Any changes 614 * made after this point may be overwritten when the script is next run. 615 */ 616void ERR_load_BIO_strings(void); 617 618/* Error codes for the BIO functions. */ 619 620/* Function codes. */ 621#define BIO_F_ACPT_STATE 100 622#define BIO_F_BIO_ACCEPT 101 623#define BIO_F_BIO_BER_GET_HEADER 102 624#define BIO_F_BIO_CTRL 103 625#define BIO_F_BIO_GETHOSTBYNAME 120 626#define BIO_F_BIO_GETS 104 627#define BIO_F_BIO_GET_ACCEPT_SOCKET 105 628#define BIO_F_BIO_GET_HOST_IP 106 629#define BIO_F_BIO_GET_PORT 107 630#define BIO_F_BIO_MAKE_PAIR 121 631#define BIO_F_BIO_NEW 108 632#define BIO_F_BIO_NEW_FILE 109 633#define BIO_F_BIO_NEW_MEM_BUF 126 634#define BIO_F_BIO_NREAD 123 635#define BIO_F_BIO_NREAD0 124 636#define BIO_F_BIO_NWRITE 125 637#define BIO_F_BIO_NWRITE0 122 638#define BIO_F_BIO_PUTS 110 639#define BIO_F_BIO_READ 111 640#define BIO_F_BIO_SOCK_INIT 112 641#define BIO_F_BIO_WRITE 113 642#define BIO_F_BUFFER_CTRL 114 643#define BIO_F_CONN_CTRL 127 644#define BIO_F_CONN_STATE 115 645#define BIO_F_FILE_CTRL 116 646#define BIO_F_LINEBUFFER_CTRL 129 647#define BIO_F_MEM_READ 128 648#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_EOF_ON_MEMORY_BIO 127 659#define BIO_R_ERROR_SETTING_NBIO 104 660#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET 105 661#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET 106 662#define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET 107 663#define BIO_R_INVALID_ARGUMENT 125 664#define BIO_R_INVALID_IP_ADDRESS 108 665#define BIO_R_IN_USE 123 666#define BIO_R_KEEPALIVE 109 667#define BIO_R_NBIO_CONNECT_ERROR 110 668#define BIO_R_NO_ACCEPT_PORT_SPECIFIED 111 669#define BIO_R_NO_HOSTNAME_SPECIFIED 112 670#define BIO_R_NO_PORT_DEFINED 113 671#define BIO_R_NO_PORT_SPECIFIED 114 672#define BIO_R_NULL_PARAMETER 115 673#define BIO_R_TAG_MISMATCH 116 674#define BIO_R_UNABLE_TO_BIND_SOCKET 117 675#define BIO_R_UNABLE_TO_CREATE_SOCKET 118 676#define BIO_R_UNABLE_TO_LISTEN_SOCKET 119 677#define BIO_R_UNINITIALIZED 120 678#define BIO_R_UNSUPPORTED_METHOD 121 679#define BIO_R_WRITE_TO_READ_ONLY_BIO 126 680#define BIO_R_WSASTARTUP 122 681 682#ifdef __cplusplus 683} 684#endif 685#endif 686