bio.h revision 55714
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#ifdef __cplusplus 63extern "C" { 64#endif 65 66#include <stdio.h> 67#include <stdlib.h> 68#include <openssl/crypto.h> 69 70/* These are the 'types' of BIOs */ 71#define BIO_TYPE_NONE 0 72#define BIO_TYPE_MEM (1|0x0400) 73#define BIO_TYPE_FILE (2|0x0400) 74 75#define BIO_TYPE_FD (4|0x0400|0x0100) 76#define BIO_TYPE_SOCKET (5|0x0400|0x0100) 77#define BIO_TYPE_NULL (6|0x0400) 78#define BIO_TYPE_SSL (7|0x0200) 79#define BIO_TYPE_MD (8|0x0200) /* pasive filter */ 80#define BIO_TYPE_BUFFER (9|0x0200) /* filter */ 81#define BIO_TYPE_CIPHER (10|0x0200) /* filter */ 82#define BIO_TYPE_BASE64 (11|0x0200) /* filter */ 83#define BIO_TYPE_CONNECT (12|0x0400|0x0100) /* socket - connect */ 84#define BIO_TYPE_ACCEPT (13|0x0400|0x0100) /* socket for accept */ 85#define BIO_TYPE_PROXY_CLIENT (14|0x0200) /* client proxy BIO */ 86#define BIO_TYPE_PROXY_SERVER (15|0x0200) /* server proxy BIO */ 87#define BIO_TYPE_NBIO_TEST (16|0x0200) /* server proxy BIO */ 88#define BIO_TYPE_NULL_FILTER (17|0x0200) 89#define BIO_TYPE_BER (18|0x0200) /* BER -> bin filter */ 90#define BIO_TYPE_BIO (19|0x0400) /* (half a) BIO pair */ 91 92#define BIO_TYPE_DESCRIPTOR 0x0100 /* socket, fd, connect or accept */ 93#define BIO_TYPE_FILTER 0x0200 94#define BIO_TYPE_SOURCE_SINK 0x0400 95 96/* BIO_FILENAME_READ|BIO_CLOSE to open or close on free. 97 * BIO_set_fp(in,stdin,BIO_NOCLOSE); */ 98#define BIO_NOCLOSE 0x00 99#define BIO_CLOSE 0x01 100 101/* These are used in the following macros and are passed to 102 * BIO_ctrl() */ 103#define BIO_CTRL_RESET 1 /* opt - rewind/zero etc */ 104#define BIO_CTRL_EOF 2 /* opt - are we at the eof */ 105#define BIO_CTRL_INFO 3 /* opt - extra tit-bits */ 106#define BIO_CTRL_SET 4 /* man - set the 'IO' type */ 107#define BIO_CTRL_GET 5 /* man - get the 'IO' type */ 108#define BIO_CTRL_PUSH 6 /* opt - internal, used to signify change */ 109#define BIO_CTRL_POP 7 /* opt - internal, used to signify change */ 110#define BIO_CTRL_GET_CLOSE 8 /* man - set the 'close' on free */ 111#define BIO_CTRL_SET_CLOSE 9 /* man - set the 'close' on free */ 112#define BIO_CTRL_PENDING 10 /* opt - is their more data buffered */ 113#define BIO_CTRL_FLUSH 11 /* opt - 'flush' buffered output */ 114#define BIO_CTRL_DUP 12 /* man - extra stuff for 'duped' BIO */ 115#define BIO_CTRL_WPENDING 13 /* opt - number of bytes still to write */ 116/* callback is int cb(BIO *bio,state,ret); */ 117#define BIO_CTRL_SET_CALLBACK 14 /* opt - set callback function */ 118#define BIO_CTRL_GET_CALLBACK 15 /* opt - set callback function */ 119 120#define BIO_CTRL_SET_FILENAME 30 /* BIO_s_file special */ 121 122/* modifiers */ 123#define BIO_FP_READ 0x02 124#define BIO_FP_WRITE 0x04 125#define BIO_FP_APPEND 0x08 126#define BIO_FP_TEXT 0x10 127 128#define BIO_FLAGS_READ 0x01 129#define BIO_FLAGS_WRITE 0x02 130#define BIO_FLAGS_IO_SPECIAL 0x04 131#define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL) 132#define BIO_FLAGS_SHOULD_RETRY 0x08 133 134/* Used in BIO_gethostbyname() */ 135#define BIO_GHBN_CTRL_HITS 1 136#define BIO_GHBN_CTRL_MISSES 2 137#define BIO_GHBN_CTRL_CACHE_SIZE 3 138#define BIO_GHBN_CTRL_GET_ENTRY 4 139#define BIO_GHBN_CTRL_FLUSH 5 140 141/* Mostly used in the SSL BIO */ 142/* Not used anymore 143 * #define BIO_FLAGS_PROTOCOL_DELAYED_READ 0x10 144 * #define BIO_FLAGS_PROTOCOL_DELAYED_WRITE 0x20 145 * #define BIO_FLAGS_PROTOCOL_STARTUP 0x40 146 */ 147 148#define BIO_FLAGS_BASE64_NO_NL 0x100 149 150#define BIO_set_flags(b,f) ((b)->flags|=(f)) 151#define BIO_get_flags(b) ((b)->flags) 152#define BIO_set_retry_special(b) \ 153 ((b)->flags|=(BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY)) 154#define BIO_set_retry_read(b) \ 155 ((b)->flags|=(BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY)) 156#define BIO_set_retry_write(b) \ 157 ((b)->flags|=(BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY)) 158 159/* These are normally used internally in BIOs */ 160#define BIO_clear_flags(b,f) ((b)->flags&= ~(f)) 161#define BIO_clear_retry_flags(b) \ 162 ((b)->flags&= ~(BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY)) 163#define BIO_get_retry_flags(b) \ 164 ((b)->flags&(BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY)) 165 166/* These shouldbe used by the application to tell why we should retry */ 167#define BIO_should_read(a) ((a)->flags & BIO_FLAGS_READ) 168#define BIO_should_write(a) ((a)->flags & BIO_FLAGS_WRITE) 169#define BIO_should_io_special(a) ((a)->flags & BIO_FLAGS_IO_SPECIAL) 170#define BIO_retry_type(a) ((a)->flags & BIO_FLAGS_RWS) 171#define BIO_should_retry(a) ((a)->flags & BIO_FLAGS_SHOULD_RETRY) 172 173/* The next two are used in conjunction with the 174 * BIO_should_io_special() condition. After this returns true, 175 * BIO *BIO_get_retry_BIO(BIO *bio, int *reason); will walk the BIO 176 * stack and return the 'reason' for the special and the offending BIO. 177 * Given a BIO, BIO_get_retry_reason(bio) will return the code. */ 178/* Returned from the SSL bio when the certificate retrieval code had an error */ 179#define BIO_RR_SSL_X509_LOOKUP 0x01 180/* Returned from the connect BIO when a connect would have blocked */ 181#define BIO_RR_CONNECT 0x02 182 183/* These are passed by the BIO callback */ 184#define BIO_CB_FREE 0x01 185#define BIO_CB_READ 0x02 186#define BIO_CB_WRITE 0x03 187#define BIO_CB_PUTS 0x04 188#define BIO_CB_GETS 0x05 189#define BIO_CB_CTRL 0x06 190 191/* The callback is called before and after the underling operation, 192 * The BIO_CB_RETURN flag indicates if it is after the call */ 193#define BIO_CB_RETURN 0x80 194#define BIO_CB_return(a) ((a)|BIO_CB_RETURN)) 195#define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN)) 196#define BIO_cb_post(a) ((a)&BIO_CB_RETURN) 197 198#define BIO_set_callback(b,cb) ((b)->callback=(cb)) 199#define BIO_set_callback_arg(b,arg) ((b)->cb_arg=(char *)(arg)) 200#define BIO_get_callback_arg(b) ((b)->cb_arg) 201#define BIO_get_callback(b) ((b)->callback) 202#define BIO_method_name(b) ((b)->method->name) 203#define BIO_method_type(b) ((b)->method->type) 204 205#ifndef WIN16 206typedef struct bio_method_st 207 { 208 int type; 209 const char *name; 210 int (*bwrite)(); 211 int (*bread)(); 212 int (*bputs)(); 213 int (*bgets)(); 214 long (*ctrl)(); 215 int (*create)(); 216 int (*destroy)(); 217 } BIO_METHOD; 218#else 219typedef struct bio_method_st 220 { 221 int type; 222 const char *name; 223 int (_far *bwrite)(); 224 int (_far *bread)(); 225 int (_far *bputs)(); 226 int (_far *bgets)(); 227 long (_far *ctrl)(); 228 int (_far *create)(); 229 int (_far *destroy)(); 230 } BIO_METHOD; 231#endif 232 233typedef struct bio_st 234 { 235 BIO_METHOD *method; 236 /* bio, mode, argp, argi, argl, ret */ 237 long (*callback)(struct bio_st *,int,const char *,int, long,long); 238 char *cb_arg; /* first argument for the callback */ 239 240 int init; 241 int shutdown; 242 int flags; /* extra storage */ 243 int retry_reason; 244 int num; 245 void *ptr; 246 struct bio_st *next_bio; /* used by filter BIOs */ 247 struct bio_st *prev_bio; /* used by filter BIOs */ 248 int references; 249 unsigned long num_read; 250 unsigned long num_write; 251 252 CRYPTO_EX_DATA ex_data; 253 } BIO; 254 255typedef struct bio_f_buffer_ctx_struct 256 { 257 /* BIO *bio; */ /* this is now in the BIO struct */ 258 int ibuf_size; /* how big is the input buffer */ 259 int obuf_size; /* how big is the output buffer */ 260 261 char *ibuf; /* the char array */ 262 int ibuf_len; /* how many bytes are in it */ 263 int ibuf_off; /* write/read offset */ 264 265 char *obuf; /* the char array */ 266 int obuf_len; /* how many bytes are in it */ 267 int obuf_off; /* write/read offset */ 268 } BIO_F_BUFFER_CTX; 269 270/* connect BIO stuff */ 271#define BIO_CONN_S_BEFORE 1 272#define BIO_CONN_S_GET_IP 2 273#define BIO_CONN_S_GET_PORT 3 274#define BIO_CONN_S_CREATE_SOCKET 4 275#define BIO_CONN_S_CONNECT 5 276#define BIO_CONN_S_OK 6 277#define BIO_CONN_S_BLOCKED_CONNECT 7 278#define BIO_CONN_S_NBIO 8 279/*#define BIO_CONN_get_param_hostname BIO_ctrl */ 280 281#define BIO_number_read(b) ((b)->num_read) 282#define BIO_number_written(b) ((b)->num_write) 283 284#define BIO_C_SET_CONNECT 100 285#define BIO_C_DO_STATE_MACHINE 101 286#define BIO_C_SET_NBIO 102 287#define BIO_C_SET_PROXY_PARAM 103 288#define BIO_C_SET_FD 104 289#define BIO_C_GET_FD 105 290#define BIO_C_SET_FILE_PTR 106 291#define BIO_C_GET_FILE_PTR 107 292#define BIO_C_SET_FILENAME 108 293#define BIO_C_SET_SSL 109 294#define BIO_C_GET_SSL 110 295#define BIO_C_SET_MD 111 296#define BIO_C_GET_MD 112 297#define BIO_C_GET_CIPHER_STATUS 113 298#define BIO_C_SET_BUF_MEM 114 299#define BIO_C_GET_BUF_MEM_PTR 115 300#define BIO_C_GET_BUFF_NUM_LINES 116 301#define BIO_C_SET_BUFF_SIZE 117 302#define BIO_C_SET_ACCEPT 118 303#define BIO_C_SSL_MODE 119 304#define BIO_C_GET_MD_CTX 120 305#define BIO_C_GET_PROXY_PARAM 121 306#define BIO_C_SET_BUFF_READ_DATA 122 /* data to read first */ 307#define BIO_C_GET_CONNECT 123 308#define BIO_C_GET_ACCEPT 124 309#define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125 310#define BIO_C_GET_SSL_NUM_RENEGOTIATES 126 311#define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127 312#define BIO_C_FILE_SEEK 128 313#define BIO_C_GET_CIPHER_CTX 129 314#define BIO_C_SET_BUF_MEM_EOF_RETURN 130/*return end of input value*/ 315#define BIO_C_SET_BIND_MODE 131 316#define BIO_C_GET_BIND_MODE 132 317#define BIO_C_FILE_TELL 133 318#define BIO_C_GET_SOCKS 134 319#define BIO_C_SET_SOCKS 135 320 321#define BIO_C_SET_WRITE_BUF_SIZE 136/* for BIO_s_bio */ 322#define BIO_C_GET_WRITE_BUF_SIZE 137 323#define BIO_C_MAKE_BIO_PAIR 138 324#define BIO_C_DESTROY_BIO_PAIR 139 325#define BIO_C_GET_WRITE_GUARANTEE 140 326#define BIO_C_GET_READ_REQUEST 141 327#define BIO_C_SHUTDOWN_WR 142 328 329 330#define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,(char *)arg) 331#define BIO_get_app_data(s) BIO_get_ex_data(s,0) 332 333/* BIO_s_connect() and BIO_s_socks4a_connect() */ 334#define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name) 335#define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port) 336#define BIO_set_conn_ip(b,ip) BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip) 337#define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port) 338#define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0) 339#define BIO_get_conn_port(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1) 340#define BIO_get_conn_ip(b,ip) BIO_ptr_ctrl(b,BIO_C_SET_CONNECT,2) 341#define BIO_get_conn_int_port(b,port) BIO_int_ctrl(b,BIO_C_SET_CONNECT,3,port) 342 343 344#define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) 345 346/* BIO_s_accept_socket() */ 347#define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name) 348#define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0) 349/* #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */ 350#define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?"a":NULL) 351#define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio) 352 353#define BIO_BIND_NORMAL 0 354#define BIO_BIND_REUSEADDR_IF_UNUSED 1 355#define BIO_BIND_REUSEADDR 2 356#define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL) 357#define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL) 358 359#define BIO_do_connect(b) BIO_do_handshake(b) 360#define BIO_do_accept(b) BIO_do_handshake(b) 361#define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL) 362 363/* BIO_s_proxy_client() */ 364#define BIO_set_url(b,url) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url)) 365#define BIO_set_proxies(b,p) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p)) 366/* BIO_set_nbio(b,n) */ 367#define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s)) 368/* BIO *BIO_get_filter_bio(BIO *bio); */ 369#define BIO_set_proxy_cb(b,cb) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(char *)(cb)) 370#define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk) 371#define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool) 372 373#define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp) 374#define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p)) 375#define BIO_get_url(b,url) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url)) 376#define BIO_get_no_connect_return(b) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL) 377 378#define BIO_set_fd(b,fd,c) BIO_int_ctrl(b,BIO_C_SET_FD,c,fd) 379#define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c) 380 381#define BIO_set_fp(b,fp,c) BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp) 382#define BIO_get_fp(b,fpp) BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp) 383 384#define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL) 385#define BIO_tell(b) (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL) 386 387/* name is cast to lose const, but might be better to route through a function 388 so we can do it safely */ 389#ifdef CONST_STRICT 390/* If you are wondering why this isn't defined, its because CONST_STRICT is 391 * purely a compile-time kludge to allow const to be checked. 392 */ 393int BIO_read_filename(BIO *b,const char *name); 394#else 395#define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 396 BIO_CLOSE|BIO_FP_READ,(char *)name) 397#endif 398#define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 399 BIO_CLOSE|BIO_FP_WRITE,name) 400#define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 401 BIO_CLOSE|BIO_FP_APPEND,name) 402#define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \ 403 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name) 404 405/* WARNING WARNING, this ups the reference count on the read bio of the 406 * SSL structure. This is because the ssl read BIO is now pointed to by 407 * the next_bio field in the bio. So when you free the BIO, make sure 408 * you are doing a BIO_free_all() to catch the underlying BIO. */ 409#define BIO_set_ssl(b,ssl,c) BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl) 410#define BIO_get_ssl(b,sslp) BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp) 411#define BIO_set_ssl_mode(b,client) BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL) 412#define BIO_set_ssl_renegotiate_bytes(b,num) \ 413 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL); 414#define BIO_get_num_renegotiates(b) \ 415 BIO_ctrl(b,BIO_C_SET_SSL_NUM_RENEGOTIATES,0,NULL); 416#define BIO_set_ssl_renegotiate_timeout(b,seconds) \ 417 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL); 418 419/* defined in evp.h */ 420/* #define BIO_set_md(b,md) BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */ 421 422#define BIO_get_mem_data(b,pp) BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp) 423#define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm) 424#define BIO_get_mem_ptr(b,pp) BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp) 425#define BIO_set_mem_eof_return(b,v) \ 426 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL) 427 428/* For the BIO_f_buffer() type */ 429#define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL) 430#define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL) 431#define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0) 432#define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1) 433#define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf) 434 435/* Don't use the next one unless you know what you are doing :-) */ 436#define BIO_dup_state(b,ret) BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret)) 437 438#define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL) 439#define BIO_eof(b) (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL) 440#define BIO_set_close(b,c) (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL) 441#define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL) 442#define BIO_pending(b) (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL) 443#define BIO_wpending(b) (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL) 444/* ...pending macros have inappropriate return type */ 445size_t BIO_ctrl_pending(BIO *b); 446size_t BIO_ctrl_wpending(BIO *b); 447#define BIO_flush(b) (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL) 448#define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0,(char *)cbp) 449#define BIO_set_info_callback(b,cb) (int)BIO_ctrl(b,BIO_CTRL_SET_CALLBACK,0,(char *)cb) 450 451/* For the BIO_f_buffer() type */ 452#define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL) 453 454/* For BIO_s_bio() */ 455#define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL) 456#define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL) 457#define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2) 458#define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL) 459/* macros with inappropriate type -- but ...pending macros use int too: */ 460#define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL) 461#define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL) 462size_t BIO_ctrl_get_write_guarantee(BIO *b); 463size_t BIO_ctrl_get_read_request(BIO *b); 464 465 466 467#ifdef NO_STDIO 468#define NO_FP_API 469#endif 470 471 472/* These two aren't currently implemented */ 473/* int BIO_get_ex_num(BIO *bio); */ 474/* void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)()); */ 475int BIO_set_ex_data(BIO *bio,int idx,char *data); 476char *BIO_get_ex_data(BIO *bio,int idx); 477int BIO_get_ex_new_index(long argl, char *argp, int (*new_func)(), 478 int (*dup_func)(), void (*free_func)()); 479 480# if defined(WIN16) && defined(_WINDLL) 481BIO_METHOD *BIO_s_file_internal(void); 482BIO *BIO_new_file_internal(char *filename, char *mode); 483BIO *BIO_new_fp_internal(FILE *stream, int close_flag); 484# define BIO_s_file BIO_s_file_internal 485# define BIO_new_file BIO_new_file_internal 486# define BIO_new_fp BIO_new_fp_internal 487# else /* FP_API */ 488BIO_METHOD *BIO_s_file(void ); 489BIO *BIO_new_file(const char *filename, const char *mode); 490BIO *BIO_new_fp(FILE *stream, int close_flag); 491# define BIO_s_file_internal BIO_s_file 492# define BIO_new_file_internal BIO_new_file 493# define BIO_new_fp_internal BIO_s_file 494# endif /* FP_API */ 495BIO * BIO_new(BIO_METHOD *type); 496int BIO_set(BIO *a,BIO_METHOD *type); 497int BIO_free(BIO *a); 498int BIO_read(BIO *b, void *data, int len); 499int BIO_gets(BIO *bp,char *buf, int size); 500int BIO_write(BIO *b, const char *data, int len); 501int BIO_puts(BIO *bp,const char *buf); 502long BIO_ctrl(BIO *bp,int cmd,long larg,void *parg); 503char * BIO_ptr_ctrl(BIO *bp,int cmd,long larg); 504long BIO_int_ctrl(BIO *bp,int cmd,long larg,int iarg); 505BIO * BIO_push(BIO *b,BIO *append); 506BIO * BIO_pop(BIO *b); 507void BIO_free_all(BIO *a); 508BIO * BIO_find_type(BIO *b,int bio_type); 509BIO * BIO_get_retry_BIO(BIO *bio, int *reason); 510int BIO_get_retry_reason(BIO *bio); 511BIO * BIO_dup_chain(BIO *in); 512 513#ifndef WIN16 514long BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi, 515 long argl,long ret); 516#else 517long _far _loadds BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi, 518 long argl,long ret); 519#endif 520 521BIO_METHOD *BIO_s_mem(void); 522BIO_METHOD *BIO_s_socket(void); 523BIO_METHOD *BIO_s_connect(void); 524BIO_METHOD *BIO_s_accept(void); 525BIO_METHOD *BIO_s_fd(void); 526BIO_METHOD *BIO_s_log(void); 527BIO_METHOD *BIO_s_bio(void); 528BIO_METHOD *BIO_s_null(void); 529BIO_METHOD *BIO_f_null(void); 530BIO_METHOD *BIO_f_buffer(void); 531BIO_METHOD *BIO_f_nbio_test(void); 532/* BIO_METHOD *BIO_f_ber(void); */ 533 534int BIO_sock_should_retry(int i); 535int BIO_sock_non_fatal_error(int error); 536int BIO_fd_should_retry(int i); 537int BIO_fd_non_fatal_error(int error); 538int BIO_dump(BIO *b,const char *bytes,int len); 539 540struct hostent *BIO_gethostbyname(const char *name); 541/* We might want a thread-safe interface too: 542 * struct hostent *BIO_gethostbyname_r(const char *name, 543 * struct hostent *result, void *buffer, size_t buflen); 544 * or something similar (caller allocates a struct hostent, 545 * pointed to by "result", and additional buffer space for the various 546 * substructures; if the buffer does not suffice, NULL is returned 547 * and an appropriate error code is set). 548 */ 549int BIO_sock_error(int sock); 550int BIO_socket_ioctl(int fd, long type, unsigned long *arg); 551int BIO_socket_nbio(int fd,int mode); 552int BIO_get_port(const char *str, unsigned short *port_ptr); 553int BIO_get_host_ip(const char *str, unsigned char *ip); 554int BIO_get_accept_socket(char *host_port,int mode); 555int BIO_accept(int sock,char **ip_port); 556int BIO_sock_init(void ); 557void BIO_sock_cleanup(void); 558int BIO_set_tcp_ndelay(int sock,int turn_on); 559 560void ERR_load_BIO_strings(void ); 561 562BIO *BIO_new_socket(int sock, int close_flag); 563BIO *BIO_new_fd(int fd, int close_flag); 564BIO *BIO_new_connect(char *host_port); 565BIO *BIO_new_accept(char *host_port); 566 567int BIO_new_bio_pair(BIO **bio1, size_t writebuf1, 568 BIO **bio2, size_t writebuf2); 569/* If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints. 570 * Otherwise returns 0 and sets *bio1 and *bio2 to NULL. 571 * Size 0 uses default value. 572 */ 573 574void BIO_copy_next_retry(BIO *b); 575 576long BIO_ghbn_ctrl(int cmd,int iarg,char *parg); 577 578int BIO_printf(BIO *bio, ...); 579 580/* BEGIN ERROR CODES */ 581/* The following lines are auto generated by the script mkerr.pl. Any changes 582 * made after this point may be overwritten when the script is next run. 583 */ 584 585/* Error codes for the BIO functions. */ 586 587/* Function codes. */ 588#define BIO_F_ACPT_STATE 100 589#define BIO_F_BIO_ACCEPT 101 590#define BIO_F_BIO_BER_GET_HEADER 102 591#define BIO_F_BIO_CTRL 103 592#define BIO_F_BIO_GETHOSTBYNAME 120 593#define BIO_F_BIO_GETS 104 594#define BIO_F_BIO_GET_ACCEPT_SOCKET 105 595#define BIO_F_BIO_GET_HOST_IP 106 596#define BIO_F_BIO_GET_PORT 107 597#define BIO_F_BIO_MAKE_PAIR 121 598#define BIO_F_BIO_NEW 108 599#define BIO_F_BIO_NEW_FILE 109 600#define BIO_F_BIO_PUTS 110 601#define BIO_F_BIO_READ 111 602#define BIO_F_BIO_SOCK_INIT 112 603#define BIO_F_BIO_WRITE 113 604#define BIO_F_BUFFER_CTRL 114 605#define BIO_F_CONN_STATE 115 606#define BIO_F_FILE_CTRL 116 607#define BIO_F_MEM_WRITE 117 608#define BIO_F_SSL_NEW 118 609#define BIO_F_WSASTARTUP 119 610 611/* Reason codes. */ 612#define BIO_R_ACCEPT_ERROR 100 613#define BIO_R_BAD_FOPEN_MODE 101 614#define BIO_R_BAD_HOSTNAME_LOOKUP 102 615#define BIO_R_BROKEN_PIPE 124 616#define BIO_R_CONNECT_ERROR 103 617#define BIO_R_ERROR_SETTING_NBIO 104 618#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET 105 619#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET 106 620#define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET 107 621#define BIO_R_INVALID_ARGUMENT 125 622#define BIO_R_INVALID_IP_ADDRESS 108 623#define BIO_R_IN_USE 123 624#define BIO_R_KEEPALIVE 109 625#define BIO_R_NBIO_CONNECT_ERROR 110 626#define BIO_R_NO_ACCEPT_PORT_SPECIFIED 111 627#define BIO_R_NO_HOSTNAME_SPECIFIED 112 628#define BIO_R_NO_PORT_DEFINED 113 629#define BIO_R_NO_PORT_SPECIFIED 114 630#define BIO_R_NULL_PARAMETER 115 631#define BIO_R_TAG_MISMATCH 116 632#define BIO_R_UNABLE_TO_BIND_SOCKET 117 633#define BIO_R_UNABLE_TO_CREATE_SOCKET 118 634#define BIO_R_UNABLE_TO_LISTEN_SOCKET 119 635#define BIO_R_UNINITIALIZED 120 636#define BIO_R_UNSUPPORTED_METHOD 121 637#define BIO_R_WSASTARTUP 122 638 639#ifdef __cplusplus 640} 641#endif 642#endif 643 644