bio.h revision 111147
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 OPENSSL_NO_FP_API 63# include <stdio.h> 64#endif 65#include <stdarg.h> 66 67#include <openssl/crypto.h> 68#include <openssl/e_os2.h> 69 70#ifdef __cplusplus 71extern "C" { 72#endif 73 74/* These are the 'types' of BIOs */ 75#define BIO_TYPE_NONE 0 76#define BIO_TYPE_MEM (1|0x0400) 77#define BIO_TYPE_FILE (2|0x0400) 78 79#define BIO_TYPE_FD (4|0x0400|0x0100) 80#define BIO_TYPE_SOCKET (5|0x0400|0x0100) 81#define BIO_TYPE_NULL (6|0x0400) 82#define BIO_TYPE_SSL (7|0x0200) 83#define BIO_TYPE_MD (8|0x0200) /* passive filter */ 84#define BIO_TYPE_BUFFER (9|0x0200) /* filter */ 85#define BIO_TYPE_CIPHER (10|0x0200) /* filter */ 86#define BIO_TYPE_BASE64 (11|0x0200) /* filter */ 87#define BIO_TYPE_CONNECT (12|0x0400|0x0100) /* socket - connect */ 88#define BIO_TYPE_ACCEPT (13|0x0400|0x0100) /* socket for accept */ 89#define BIO_TYPE_PROXY_CLIENT (14|0x0200) /* client proxy BIO */ 90#define BIO_TYPE_PROXY_SERVER (15|0x0200) /* server proxy BIO */ 91#define BIO_TYPE_NBIO_TEST (16|0x0200) /* server proxy BIO */ 92#define BIO_TYPE_NULL_FILTER (17|0x0200) 93#define BIO_TYPE_BER (18|0x0200) /* BER -> bin filter */ 94#define BIO_TYPE_BIO (19|0x0400) /* (half a) BIO pair */ 95#define BIO_TYPE_LINEBUFFER (20|0x0200) /* filter */ 96 97#define BIO_TYPE_DESCRIPTOR 0x0100 /* socket, fd, connect or accept */ 98#define BIO_TYPE_FILTER 0x0200 99#define BIO_TYPE_SOURCE_SINK 0x0400 100 101/* BIO_FILENAME_READ|BIO_CLOSE to open or close on free. 102 * BIO_set_fp(in,stdin,BIO_NOCLOSE); */ 103#define BIO_NOCLOSE 0x00 104#define BIO_CLOSE 0x01 105 106/* These are used in the following macros and are passed to 107 * BIO_ctrl() */ 108#define BIO_CTRL_RESET 1 /* opt - rewind/zero etc */ 109#define BIO_CTRL_EOF 2 /* opt - are we at the eof */ 110#define BIO_CTRL_INFO 3 /* opt - extra tit-bits */ 111#define BIO_CTRL_SET 4 /* man - set the 'IO' type */ 112#define BIO_CTRL_GET 5 /* man - get the 'IO' type */ 113#define BIO_CTRL_PUSH 6 /* opt - internal, used to signify change */ 114#define BIO_CTRL_POP 7 /* opt - internal, used to signify change */ 115#define BIO_CTRL_GET_CLOSE 8 /* man - set the 'close' on free */ 116#define BIO_CTRL_SET_CLOSE 9 /* man - set the 'close' on free */ 117#define BIO_CTRL_PENDING 10 /* opt - is their more data buffered */ 118#define BIO_CTRL_FLUSH 11 /* opt - 'flush' buffered output */ 119#define BIO_CTRL_DUP 12 /* man - extra stuff for 'duped' BIO */ 120#define BIO_CTRL_WPENDING 13 /* opt - number of bytes still to write */ 121/* callback is int cb(BIO *bio,state,ret); */ 122#define BIO_CTRL_SET_CALLBACK 14 /* opt - set callback function */ 123#define BIO_CTRL_GET_CALLBACK 15 /* opt - set callback function */ 124 125#define BIO_CTRL_SET_FILENAME 30 /* BIO_s_file special */ 126 127/* modifiers */ 128#define BIO_FP_READ 0x02 129#define BIO_FP_WRITE 0x04 130#define BIO_FP_APPEND 0x08 131#define BIO_FP_TEXT 0x10 132 133#define BIO_FLAGS_READ 0x01 134#define BIO_FLAGS_WRITE 0x02 135#define BIO_FLAGS_IO_SPECIAL 0x04 136#define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL) 137#define BIO_FLAGS_SHOULD_RETRY 0x08 138 139/* Used in BIO_gethostbyname() */ 140#define BIO_GHBN_CTRL_HITS 1 141#define BIO_GHBN_CTRL_MISSES 2 142#define BIO_GHBN_CTRL_CACHE_SIZE 3 143#define BIO_GHBN_CTRL_GET_ENTRY 4 144#define BIO_GHBN_CTRL_FLUSH 5 145 146/* Mostly used in the SSL BIO */ 147/* Not used anymore 148 * #define BIO_FLAGS_PROTOCOL_DELAYED_READ 0x10 149 * #define BIO_FLAGS_PROTOCOL_DELAYED_WRITE 0x20 150 * #define BIO_FLAGS_PROTOCOL_STARTUP 0x40 151 */ 152 153#define BIO_FLAGS_BASE64_NO_NL 0x100 154 155/* This is used with memory BIOs: it means we shouldn't free up or change the 156 * data in any way. 157 */ 158#define BIO_FLAGS_MEM_RDONLY 0x200 159 160#define BIO_set_flags(b,f) ((b)->flags|=(f)) 161#define BIO_get_flags(b) ((b)->flags) 162#define BIO_set_retry_special(b) \ 163 ((b)->flags|=(BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY)) 164#define BIO_set_retry_read(b) \ 165 ((b)->flags|=(BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY)) 166#define BIO_set_retry_write(b) \ 167 ((b)->flags|=(BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY)) 168 169/* These are normally used internally in BIOs */ 170#define BIO_clear_flags(b,f) ((b)->flags&= ~(f)) 171#define BIO_clear_retry_flags(b) \ 172 ((b)->flags&= ~(BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY)) 173#define BIO_get_retry_flags(b) \ 174 ((b)->flags&(BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY)) 175 176/* These should be used by the application to tell why we should retry */ 177#define BIO_should_read(a) ((a)->flags & BIO_FLAGS_READ) 178#define BIO_should_write(a) ((a)->flags & BIO_FLAGS_WRITE) 179#define BIO_should_io_special(a) ((a)->flags & BIO_FLAGS_IO_SPECIAL) 180#define BIO_retry_type(a) ((a)->flags & BIO_FLAGS_RWS) 181#define BIO_should_retry(a) ((a)->flags & BIO_FLAGS_SHOULD_RETRY) 182 183/* The next three are used in conjunction with the 184 * BIO_should_io_special() condition. After this returns true, 185 * BIO *BIO_get_retry_BIO(BIO *bio, int *reason); will walk the BIO 186 * stack and return the 'reason' for the special and the offending BIO. 187 * Given a BIO, BIO_get_retry_reason(bio) will return the code. */ 188/* Returned from the SSL bio when the certificate retrieval code had an error */ 189#define BIO_RR_SSL_X509_LOOKUP 0x01 190/* Returned from the connect BIO when a connect would have blocked */ 191#define BIO_RR_CONNECT 0x02 192/* Returned from the accept BIO when an accept would have blocked */ 193#define BIO_RR_ACCEPT 0x03 194 195/* These are passed by the BIO callback */ 196#define BIO_CB_FREE 0x01 197#define BIO_CB_READ 0x02 198#define BIO_CB_WRITE 0x03 199#define BIO_CB_PUTS 0x04 200#define BIO_CB_GETS 0x05 201#define BIO_CB_CTRL 0x06 202 203/* The callback is called before and after the underling operation, 204 * The BIO_CB_RETURN flag indicates if it is after the call */ 205#define BIO_CB_RETURN 0x80 206#define BIO_CB_return(a) ((a)|BIO_CB_RETURN)) 207#define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN)) 208#define BIO_cb_post(a) ((a)&BIO_CB_RETURN) 209 210#define BIO_set_callback(b,cb) ((b)->callback=(cb)) 211#define BIO_set_callback_arg(b,arg) ((b)->cb_arg=(char *)(arg)) 212#define BIO_get_callback_arg(b) ((b)->cb_arg) 213#define BIO_get_callback(b) ((b)->callback) 214#define BIO_method_name(b) ((b)->method->name) 215#define BIO_method_type(b) ((b)->method->type) 216 217typedef struct bio_st BIO; 218 219typedef void bio_info_cb(struct bio_st *, int, const char *, int, long, long); 220 221#ifndef OPENSSL_SYS_WIN16 222typedef struct bio_method_st 223 { 224 int type; 225 const char *name; 226 int (*bwrite)(BIO *, const char *, int); 227 int (*bread)(BIO *, char *, int); 228 int (*bputs)(BIO *, const char *); 229 int (*bgets)(BIO *, char *, int); 230 long (*ctrl)(BIO *, int, long, void *); 231 int (*create)(BIO *); 232 int (*destroy)(BIO *); 233 long (*callback_ctrl)(BIO *, int, bio_info_cb *); 234 } BIO_METHOD; 235#else 236typedef struct bio_method_st 237 { 238 int type; 239 const char *name; 240 int (_far *bwrite)(); 241 int (_far *bread)(); 242 int (_far *bputs)(); 243 int (_far *bgets)(); 244 long (_far *ctrl)(); 245 int (_far *create)(); 246 int (_far *destroy)(); 247 long (_far *callback_ctrl)(); 248 } BIO_METHOD; 249#endif 250 251struct bio_st 252 { 253 BIO_METHOD *method; 254 /* bio, mode, argp, argi, argl, ret */ 255 long (*callback)(struct bio_st *,int,const char *,int, long,long); 256 char *cb_arg; /* first argument for the callback */ 257 258 int init; 259 int shutdown; 260 int flags; /* extra storage */ 261 int retry_reason; 262 int num; 263 void *ptr; 264 struct bio_st *next_bio; /* used by filter BIOs */ 265 struct bio_st *prev_bio; /* used by filter BIOs */ 266 int references; 267 unsigned long num_read; 268 unsigned long num_write; 269 270 CRYPTO_EX_DATA ex_data; 271 }; 272 273DECLARE_STACK_OF(BIO) 274 275typedef struct bio_f_buffer_ctx_struct 276 { 277 /* BIO *bio; */ /* this is now in the BIO struct */ 278 int ibuf_size; /* how big is the input buffer */ 279 int obuf_size; /* how big is the output buffer */ 280 281 char *ibuf; /* the char array */ 282 int ibuf_len; /* how many bytes are in it */ 283 int ibuf_off; /* write/read offset */ 284 285 char *obuf; /* the char array */ 286 int obuf_len; /* how many bytes are in it */ 287 int obuf_off; /* write/read offset */ 288 } BIO_F_BUFFER_CTX; 289 290/* connect BIO stuff */ 291#define BIO_CONN_S_BEFORE 1 292#define BIO_CONN_S_GET_IP 2 293#define BIO_CONN_S_GET_PORT 3 294#define BIO_CONN_S_CREATE_SOCKET 4 295#define BIO_CONN_S_CONNECT 5 296#define BIO_CONN_S_OK 6 297#define BIO_CONN_S_BLOCKED_CONNECT 7 298#define BIO_CONN_S_NBIO 8 299/*#define BIO_CONN_get_param_hostname BIO_ctrl */ 300 301#define BIO_C_SET_CONNECT 100 302#define BIO_C_DO_STATE_MACHINE 101 303#define BIO_C_SET_NBIO 102 304#define BIO_C_SET_PROXY_PARAM 103 305#define BIO_C_SET_FD 104 306#define BIO_C_GET_FD 105 307#define BIO_C_SET_FILE_PTR 106 308#define BIO_C_GET_FILE_PTR 107 309#define BIO_C_SET_FILENAME 108 310#define BIO_C_SET_SSL 109 311#define BIO_C_GET_SSL 110 312#define BIO_C_SET_MD 111 313#define BIO_C_GET_MD 112 314#define BIO_C_GET_CIPHER_STATUS 113 315#define BIO_C_SET_BUF_MEM 114 316#define BIO_C_GET_BUF_MEM_PTR 115 317#define BIO_C_GET_BUFF_NUM_LINES 116 318#define BIO_C_SET_BUFF_SIZE 117 319#define BIO_C_SET_ACCEPT 118 320#define BIO_C_SSL_MODE 119 321#define BIO_C_GET_MD_CTX 120 322#define BIO_C_GET_PROXY_PARAM 121 323#define BIO_C_SET_BUFF_READ_DATA 122 /* data to read first */ 324#define BIO_C_GET_CONNECT 123 325#define BIO_C_GET_ACCEPT 124 326#define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125 327#define BIO_C_GET_SSL_NUM_RENEGOTIATES 126 328#define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127 329#define BIO_C_FILE_SEEK 128 330#define BIO_C_GET_CIPHER_CTX 129 331#define BIO_C_SET_BUF_MEM_EOF_RETURN 130/*return end of input value*/ 332#define BIO_C_SET_BIND_MODE 131 333#define BIO_C_GET_BIND_MODE 132 334#define BIO_C_FILE_TELL 133 335#define BIO_C_GET_SOCKS 134 336#define BIO_C_SET_SOCKS 135 337 338#define BIO_C_SET_WRITE_BUF_SIZE 136/* for BIO_s_bio */ 339#define BIO_C_GET_WRITE_BUF_SIZE 137 340#define BIO_C_MAKE_BIO_PAIR 138 341#define BIO_C_DESTROY_BIO_PAIR 139 342#define BIO_C_GET_WRITE_GUARANTEE 140 343#define BIO_C_GET_READ_REQUEST 141 344#define BIO_C_SHUTDOWN_WR 142 345#define BIO_C_NREAD0 143 346#define BIO_C_NREAD 144 347#define BIO_C_NWRITE0 145 348#define BIO_C_NWRITE 146 349#define BIO_C_RESET_READ_REQUEST 147 350 351 352#define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,arg) 353#define BIO_get_app_data(s) BIO_get_ex_data(s,0) 354 355/* BIO_s_connect() and BIO_s_socks4a_connect() */ 356#define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name) 357#define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port) 358#define BIO_set_conn_ip(b,ip) BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip) 359#define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port) 360#define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0) 361#define BIO_get_conn_port(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1) 362#define BIO_get_conn_ip(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,2) 363#define BIO_get_conn_int_port(b) BIO_int_ctrl(b,BIO_C_GET_CONNECT,3) 364 365 366#define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) 367 368/* BIO_s_accept_socket() */ 369#define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name) 370#define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0) 371/* #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */ 372#define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?"a":NULL) 373#define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio) 374 375#define BIO_BIND_NORMAL 0 376#define BIO_BIND_REUSEADDR_IF_UNUSED 1 377#define BIO_BIND_REUSEADDR 2 378#define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL) 379#define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL) 380 381#define BIO_do_connect(b) BIO_do_handshake(b) 382#define BIO_do_accept(b) BIO_do_handshake(b) 383#define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL) 384 385/* BIO_s_proxy_client() */ 386#define BIO_set_url(b,url) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url)) 387#define BIO_set_proxies(b,p) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p)) 388/* BIO_set_nbio(b,n) */ 389#define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s)) 390/* BIO *BIO_get_filter_bio(BIO *bio); */ 391#define BIO_set_proxy_cb(b,cb) BIO_callback_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(void *(*cb)())) 392#define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk) 393#define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool) 394 395#define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp) 396#define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p)) 397#define BIO_get_url(b,url) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url)) 398#define BIO_get_no_connect_return(b) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL) 399 400#define BIO_set_fd(b,fd,c) BIO_int_ctrl(b,BIO_C_SET_FD,c,fd) 401#define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c) 402 403#define BIO_set_fp(b,fp,c) BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp) 404#define BIO_get_fp(b,fpp) BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp) 405 406#define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL) 407#define BIO_tell(b) (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL) 408 409/* name is cast to lose const, but might be better to route through a function 410 so we can do it safely */ 411#ifdef CONST_STRICT 412/* If you are wondering why this isn't defined, its because CONST_STRICT is 413 * purely a compile-time kludge to allow const to be checked. 414 */ 415int BIO_read_filename(BIO *b,const char *name); 416#else 417#define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 418 BIO_CLOSE|BIO_FP_READ,(char *)name) 419#endif 420#define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 421 BIO_CLOSE|BIO_FP_WRITE,name) 422#define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 423 BIO_CLOSE|BIO_FP_APPEND,name) 424#define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 425 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name) 426 427/* WARNING WARNING, this ups the reference count on the read bio of the 428 * SSL structure. This is because the ssl read BIO is now pointed to by 429 * the next_bio field in the bio. So when you free the BIO, make sure 430 * you are doing a BIO_free_all() to catch the underlying BIO. */ 431#define BIO_set_ssl(b,ssl,c) BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl) 432#define BIO_get_ssl(b,sslp) BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp) 433#define BIO_set_ssl_mode(b,client) BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL) 434#define BIO_set_ssl_renegotiate_bytes(b,num) \ 435 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL); 436#define BIO_get_num_renegotiates(b) \ 437 BIO_ctrl(b,BIO_C_GET_SSL_NUM_RENEGOTIATES,0,NULL); 438#define BIO_set_ssl_renegotiate_timeout(b,seconds) \ 439 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL); 440 441/* defined in evp.h */ 442/* #define BIO_set_md(b,md) BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */ 443 444#define BIO_get_mem_data(b,pp) BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp) 445#define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm) 446#define BIO_get_mem_ptr(b,pp) BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp) 447#define BIO_set_mem_eof_return(b,v) \ 448 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL) 449 450/* For the BIO_f_buffer() type */ 451#define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL) 452#define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL) 453#define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0) 454#define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1) 455#define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf) 456 457/* Don't use the next one unless you know what you are doing :-) */ 458#define BIO_dup_state(b,ret) BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret)) 459 460#define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL) 461#define BIO_eof(b) (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL) 462#define BIO_set_close(b,c) (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL) 463#define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL) 464#define BIO_pending(b) (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL) 465#define BIO_wpending(b) (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL) 466/* ...pending macros have inappropriate return type */ 467size_t BIO_ctrl_pending(BIO *b); 468size_t BIO_ctrl_wpending(BIO *b); 469#define BIO_flush(b) (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL) 470#define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0, \ 471 cbp) 472#define BIO_set_info_callback(b,cb) (int)BIO_callback_ctrl(b,BIO_CTRL_SET_CALLBACK,cb) 473 474/* For the BIO_f_buffer() type */ 475#define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL) 476 477/* For BIO_s_bio() */ 478#define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL) 479#define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL) 480#define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2) 481#define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL) 482#define BIO_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL) 483/* macros with inappropriate type -- but ...pending macros use int too: */ 484#define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL) 485#define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL) 486size_t BIO_ctrl_get_write_guarantee(BIO *b); 487size_t BIO_ctrl_get_read_request(BIO *b); 488int BIO_ctrl_reset_read_request(BIO *b); 489 490/* These two aren't currently implemented */ 491/* int BIO_get_ex_num(BIO *bio); */ 492/* void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)()); */ 493int BIO_set_ex_data(BIO *bio,int idx,void *data); 494void *BIO_get_ex_data(BIO *bio,int idx); 495int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 496 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func); 497unsigned long BIO_number_read(BIO *bio); 498unsigned long BIO_number_written(BIO *bio); 499 500# ifndef OPENSSL_NO_FP_API 501# if defined(OPENSSL_SYS_WIN16) && defined(_WINDLL) 502BIO_METHOD *BIO_s_file_internal(void); 503BIO *BIO_new_file_internal(char *filename, char *mode); 504BIO *BIO_new_fp_internal(FILE *stream, int close_flag); 505# define BIO_s_file BIO_s_file_internal 506# define BIO_new_file BIO_new_file_internal 507# define BIO_new_fp BIO_new_fp_internal 508# else /* FP_API */ 509BIO_METHOD *BIO_s_file(void ); 510BIO *BIO_new_file(const char *filename, const char *mode); 511BIO *BIO_new_fp(FILE *stream, int close_flag); 512# define BIO_s_file_internal BIO_s_file 513# define BIO_new_file_internal BIO_new_file 514# define BIO_new_fp_internal BIO_s_file 515# endif /* FP_API */ 516# endif 517BIO * BIO_new(BIO_METHOD *type); 518int BIO_set(BIO *a,BIO_METHOD *type); 519int BIO_free(BIO *a); 520void BIO_vfree(BIO *a); 521int BIO_read(BIO *b, void *data, int len); 522int BIO_gets(BIO *bp,char *buf, int size); 523int BIO_write(BIO *b, const void *data, int len); 524int BIO_puts(BIO *bp,const char *buf); 525int BIO_indent(BIO *b,int indent,int max); 526long BIO_ctrl(BIO *bp,int cmd,long larg,void *parg); 527long BIO_callback_ctrl(BIO *b, int cmd, void (*fp)(struct bio_st *, int, const char *, int, long, long)); 528char * BIO_ptr_ctrl(BIO *bp,int cmd,long larg); 529long BIO_int_ctrl(BIO *bp,int cmd,long larg,int iarg); 530BIO * BIO_push(BIO *b,BIO *append); 531BIO * BIO_pop(BIO *b); 532void BIO_free_all(BIO *a); 533BIO * BIO_find_type(BIO *b,int bio_type); 534BIO * BIO_next(BIO *b); 535BIO * BIO_get_retry_BIO(BIO *bio, int *reason); 536int BIO_get_retry_reason(BIO *bio); 537BIO * BIO_dup_chain(BIO *in); 538 539int BIO_nread0(BIO *bio, char **buf); 540int BIO_nread(BIO *bio, char **buf, int num); 541int BIO_nwrite0(BIO *bio, char **buf); 542int BIO_nwrite(BIO *bio, char **buf, int num); 543 544#ifndef OPENSSL_SYS_WIN16 545long BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi, 546 long argl,long ret); 547#else 548long _far _loadds BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi, 549 long argl,long ret); 550#endif 551 552BIO_METHOD *BIO_s_mem(void); 553BIO *BIO_new_mem_buf(void *buf, int len); 554BIO_METHOD *BIO_s_socket(void); 555BIO_METHOD *BIO_s_connect(void); 556BIO_METHOD *BIO_s_accept(void); 557BIO_METHOD *BIO_s_fd(void); 558#ifndef OPENSSL_SYS_OS2 559BIO_METHOD *BIO_s_log(void); 560#endif 561BIO_METHOD *BIO_s_bio(void); 562BIO_METHOD *BIO_s_null(void); 563BIO_METHOD *BIO_f_null(void); 564BIO_METHOD *BIO_f_buffer(void); 565#ifdef OPENSSL_SYS_VMS 566BIO_METHOD *BIO_f_linebuffer(void); 567#endif 568BIO_METHOD *BIO_f_nbio_test(void); 569/* BIO_METHOD *BIO_f_ber(void); */ 570 571int BIO_sock_should_retry(int i); 572int BIO_sock_non_fatal_error(int error); 573int BIO_fd_should_retry(int i); 574int BIO_fd_non_fatal_error(int error); 575int BIO_dump(BIO *b,const char *bytes,int len); 576int BIO_dump_indent(BIO *b,const char *bytes,int len,int indent); 577 578struct hostent *BIO_gethostbyname(const char *name); 579/* We might want a thread-safe interface too: 580 * struct hostent *BIO_gethostbyname_r(const char *name, 581 * struct hostent *result, void *buffer, size_t buflen); 582 * or something similar (caller allocates a struct hostent, 583 * pointed to by "result", and additional buffer space for the various 584 * substructures; if the buffer does not suffice, NULL is returned 585 * and an appropriate error code is set). 586 */ 587int BIO_sock_error(int sock); 588int BIO_socket_ioctl(int fd, long type, void *arg); 589int BIO_socket_nbio(int fd,int mode); 590int BIO_get_port(const char *str, unsigned short *port_ptr); 591int BIO_get_host_ip(const char *str, unsigned char *ip); 592int BIO_get_accept_socket(char *host_port,int mode); 593int BIO_accept(int sock,char **ip_port); 594int BIO_sock_init(void ); 595void BIO_sock_cleanup(void); 596int BIO_set_tcp_ndelay(int sock,int turn_on); 597 598BIO *BIO_new_socket(int sock, int close_flag); 599BIO *BIO_new_fd(int fd, int close_flag); 600BIO *BIO_new_connect(char *host_port); 601BIO *BIO_new_accept(char *host_port); 602 603int BIO_new_bio_pair(BIO **bio1, size_t writebuf1, 604 BIO **bio2, size_t writebuf2); 605/* If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints. 606 * Otherwise returns 0 and sets *bio1 and *bio2 to NULL. 607 * Size 0 uses default value. 608 */ 609 610void BIO_copy_next_retry(BIO *b); 611 612/*long BIO_ghbn_ctrl(int cmd,int iarg,char *parg);*/ 613 614int BIO_printf(BIO *bio, const char *format, ...); 615int BIO_vprintf(BIO *bio, const char *format, va_list args); 616int BIO_snprintf(char *buf, size_t n, const char *format, ...); 617int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args); 618 619/* BEGIN ERROR CODES */ 620/* The following lines are auto generated by the script mkerr.pl. Any changes 621 * made after this point may be overwritten when the script is next run. 622 */ 623void ERR_load_BIO_strings(void); 624 625/* Error codes for the BIO functions. */ 626 627/* Function codes. */ 628#define BIO_F_ACPT_STATE 100 629#define BIO_F_BIO_ACCEPT 101 630#define BIO_F_BIO_BER_GET_HEADER 102 631#define BIO_F_BIO_CTRL 103 632#define BIO_F_BIO_GETHOSTBYNAME 120 633#define BIO_F_BIO_GETS 104 634#define BIO_F_BIO_GET_ACCEPT_SOCKET 105 635#define BIO_F_BIO_GET_HOST_IP 106 636#define BIO_F_BIO_GET_PORT 107 637#define BIO_F_BIO_MAKE_PAIR 121 638#define BIO_F_BIO_NEW 108 639#define BIO_F_BIO_NEW_FILE 109 640#define BIO_F_BIO_NEW_MEM_BUF 126 641#define BIO_F_BIO_NREAD 123 642#define BIO_F_BIO_NREAD0 124 643#define BIO_F_BIO_NWRITE 125 644#define BIO_F_BIO_NWRITE0 122 645#define BIO_F_BIO_PUTS 110 646#define BIO_F_BIO_READ 111 647#define BIO_F_BIO_SOCK_INIT 112 648#define BIO_F_BIO_WRITE 113 649#define BIO_F_BUFFER_CTRL 114 650#define BIO_F_CONN_CTRL 127 651#define BIO_F_CONN_STATE 115 652#define BIO_F_FILE_CTRL 116 653#define BIO_F_FILE_READ 130 654#define BIO_F_LINEBUFFER_CTRL 129 655#define BIO_F_MEM_READ 128 656#define BIO_F_MEM_WRITE 117 657#define BIO_F_SSL_NEW 118 658#define BIO_F_WSASTARTUP 119 659 660/* Reason codes. */ 661#define BIO_R_ACCEPT_ERROR 100 662#define BIO_R_BAD_FOPEN_MODE 101 663#define BIO_R_BAD_HOSTNAME_LOOKUP 102 664#define BIO_R_BROKEN_PIPE 124 665#define BIO_R_CONNECT_ERROR 103 666#define BIO_R_EOF_ON_MEMORY_BIO 127 667#define BIO_R_ERROR_SETTING_NBIO 104 668#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET 105 669#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET 106 670#define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET 107 671#define BIO_R_INVALID_ARGUMENT 125 672#define BIO_R_INVALID_IP_ADDRESS 108 673#define BIO_R_IN_USE 123 674#define BIO_R_KEEPALIVE 109 675#define BIO_R_NBIO_CONNECT_ERROR 110 676#define BIO_R_NO_ACCEPT_PORT_SPECIFIED 111 677#define BIO_R_NO_HOSTNAME_SPECIFIED 112 678#define BIO_R_NO_PORT_DEFINED 113 679#define BIO_R_NO_PORT_SPECIFIED 114 680#define BIO_R_NO_SUCH_FILE 128 681#define BIO_R_NULL_PARAMETER 115 682#define BIO_R_TAG_MISMATCH 116 683#define BIO_R_UNABLE_TO_BIND_SOCKET 117 684#define BIO_R_UNABLE_TO_CREATE_SOCKET 118 685#define BIO_R_UNABLE_TO_LISTEN_SOCKET 119 686#define BIO_R_UNINITIALIZED 120 687#define BIO_R_UNSUPPORTED_METHOD 121 688#define BIO_R_WRITE_TO_READ_ONLY_BIO 126 689#define BIO_R_WSASTARTUP 122 690 691#ifdef __cplusplus 692} 693#endif 694#endif 695