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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
63 extern "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) /* passive 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 /* This is used with memory BIOs: it means we shouldn't free up or change the
151 * data in any way.
152 */
153 #define BIO_FLAGS_MEM_RDONLY 0x200
154
155 #define BIO_set_flags(b,f) ((b)->flags|=(f))
156 #define BIO_get_flags(b) ((b)->flags)
157 #define BIO_set_retry_special(b) \
158 ((b)->flags|=(BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY))
159 #define BIO_set_retry_read(b) \
160 ((b)->flags|=(BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY))
161 #define BIO_set_retry_write(b) \
162 ((b)->flags|=(BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY))
163
164 /* These are normally used internally in BIOs */
165 #define BIO_clear_flags(b,f) ((b)->flags&= ~(f))
166 #define BIO_clear_retry_flags(b) \
167 ((b)->flags&= ~(BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
168 #define BIO_get_retry_flags(b) \
169 ((b)->flags&(BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
170
171 /* These should be used by the application to tell why we should retry */
172 #define BIO_should_read(a) ((a)->flags & BIO_FLAGS_READ)
173 #define BIO_should_write(a) ((a)->flags & BIO_FLAGS_WRITE)
174 #define BIO_should_io_special(a) ((a)->flags & BIO_FLAGS_IO_SPECIAL)
175 #define BIO_retry_type(a) ((a)->flags & BIO_FLAGS_RWS)
176 #define BIO_should_retry(a) ((a)->flags & BIO_FLAGS_SHOULD_RETRY)
177
178 /* The next two are used in conjunction with the
179 * BIO_should_io_special() condition. After this returns true,
180 * BIO *BIO_get_retry_BIO(BIO *bio, int *reason); will walk the BIO
181 * stack and return the 'reason' for the special and the offending BIO.
182 * Given a BIO, BIO_get_retry_reason(bio) will return the code. */
183 /* Returned from the SSL bio when the certificate retrieval code had an error */
184 #define BIO_RR_SSL_X509_LOOKUP 0x01
185 /* Returned from the connect BIO when a connect would have blocked */
186 #define BIO_RR_CONNECT 0x02
187
188 /* These are passed by the BIO callback */
189 #define BIO_CB_FREE 0x01
190 #define BIO_CB_READ 0x02
191 #define BIO_CB_WRITE 0x03
192 #define BIO_CB_PUTS 0x04
193 #define BIO_CB_GETS 0x05
194 #define BIO_CB_CTRL 0x06
195
196 /* The callback is called before and after the underling operation,
197 * The BIO_CB_RETURN flag indicates if it is after the call */
198 #define BIO_CB_RETURN 0x80
199 #define BIO_CB_return(a) ((a)|BIO_CB_RETURN))
200 #define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN))
201 #define BIO_cb_post(a) ((a)&BIO_CB_RETURN)
202
203 #define BIO_set_callback(b,cb) ((b)->callback=(cb))
204 #define BIO_set_callback_arg(b,arg) ((b)->cb_arg=(char *)(arg))
205 #define BIO_get_callback_arg(b) ((b)->cb_arg)
206 #define BIO_get_callback(b) ((b)->callback)
207 #define BIO_method_name(b) ((b)->method->name)
208 #define BIO_method_type(b) ((b)->method->type)
209
210 #ifndef WIN16
211 typedef struct bio_method_st
212 {
213 int type;
214 const char *name;
215 int (*bwrite)();
216 int (*bread)();
217 int (*bputs)();
218 int (*bgets)();
219 long (*ctrl)();
220 int (*create)();
221 int (*destroy)();
222 } BIO_METHOD;
223 #else
224 typedef struct bio_method_st
225 {
226 int type;
227 const char *name;
228 int (_far *bwrite)();
229 int (_far *bread)();
230 int (_far *bputs)();
231 int (_far *bgets)();
232 long (_far *ctrl)();
233 int (_far *create)();
234 int (_far *destroy)();
235 } BIO_METHOD;
236 #endif
237
238 typedef struct bio_st
239 {
240 BIO_METHOD *method;
241 /* bio, mode, argp, argi, argl, ret */
242 long (*callback)(struct bio_st *,int,const char *,int, long,long);
243 char *cb_arg; /* first argument for the callback */
244
245 int init;
246 int shutdown;
247 int flags; /* extra storage */
248 int retry_reason;
249 int num;
250 void *ptr;
251 struct bio_st *next_bio; /* used by filter BIOs */
252 struct bio_st *prev_bio; /* used by filter BIOs */
253 int references;
254 unsigned long num_read;
255 unsigned long num_write;
256
257 CRYPTO_EX_DATA ex_data;
258 } BIO;
259
260 typedef struct bio_f_buffer_ctx_struct
261 {
262 /* BIO *bio; */ /* this is now in the BIO struct */
263 int ibuf_size; /* how big is the input buffer */
264 int obuf_size; /* how big is the output buffer */
265
266 char *ibuf; /* the char array */
267 int ibuf_len; /* how many bytes are in it */
268 int ibuf_off; /* write/read offset */
269
270 char *obuf; /* the char array */
271 int obuf_len; /* how many bytes are in it */
272 int obuf_off; /* write/read offset */
273 } BIO_F_BUFFER_CTX;
274
275 /* connect BIO stuff */
276 #define BIO_CONN_S_BEFORE 1
277 #define BIO_CONN_S_GET_IP 2
278 #define BIO_CONN_S_GET_PORT 3
279 #define BIO_CONN_S_CREATE_SOCKET 4
280 #define BIO_CONN_S_CONNECT 5
281 #define BIO_CONN_S_OK 6
282 #define BIO_CONN_S_BLOCKED_CONNECT 7
283 #define BIO_CONN_S_NBIO 8
284 /*#define BIO_CONN_get_param_hostname BIO_ctrl */
285
286 #define BIO_C_SET_CONNECT 100
287 #define BIO_C_DO_STATE_MACHINE 101
288 #define BIO_C_SET_NBIO 102
289 #define BIO_C_SET_PROXY_PARAM 103
290 #define BIO_C_SET_FD 104
291 #define BIO_C_GET_FD 105
292 #define BIO_C_SET_FILE_PTR 106
293 #define BIO_C_GET_FILE_PTR 107
294 #define BIO_C_SET_FILENAME 108
295 #define BIO_C_SET_SSL 109
296 #define BIO_C_GET_SSL 110
297 #define BIO_C_SET_MD 111
298 #define BIO_C_GET_MD 112
299 #define BIO_C_GET_CIPHER_STATUS 113
300 #define BIO_C_SET_BUF_MEM 114
301 #define BIO_C_GET_BUF_MEM_PTR 115
302 #define BIO_C_GET_BUFF_NUM_LINES 116
303 #define BIO_C_SET_BUFF_SIZE 117
304 #define BIO_C_SET_ACCEPT 118
305 #define BIO_C_SSL_MODE 119
306 #define BIO_C_GET_MD_CTX 120
307 #define BIO_C_GET_PROXY_PARAM 121
308 #define BIO_C_SET_BUFF_READ_DATA 122 /* data to read first */
309 #define BIO_C_GET_CONNECT 123
310 #define BIO_C_GET_ACCEPT 124
311 #define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125
312 #define BIO_C_GET_SSL_NUM_RENEGOTIATES 126
313 #define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127
314 #define BIO_C_FILE_SEEK 128
315 #define BIO_C_GET_CIPHER_CTX 129
316 #define BIO_C_SET_BUF_MEM_EOF_RETURN 130/*return end of input value*/
317 #define BIO_C_SET_BIND_MODE 131
318 #define BIO_C_GET_BIND_MODE 132
319 #define BIO_C_FILE_TELL 133
320 #define BIO_C_GET_SOCKS 134
321 #define BIO_C_SET_SOCKS 135
322
323 #define BIO_C_SET_WRITE_BUF_SIZE 136/* for BIO_s_bio */
324 #define BIO_C_GET_WRITE_BUF_SIZE 137
325 #define BIO_C_MAKE_BIO_PAIR 138
326 #define BIO_C_DESTROY_BIO_PAIR 139
327 #define BIO_C_GET_WRITE_GUARANTEE 140
328 #define BIO_C_GET_READ_REQUEST 141
329 #define BIO_C_SHUTDOWN_WR 142
330 #define BIO_C_NREAD0 143
331 #define BIO_C_NREAD 144
332 #define BIO_C_NWRITE0 145
333 #define BIO_C_NWRITE 146
334 #define BIO_C_RESET_READ_REQUEST 147
335
336
337 #define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,arg)
338 #define BIO_get_app_data(s) BIO_get_ex_data(s,0)
339
340 /* BIO_s_connect() and BIO_s_socks4a_connect() */
341 #define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name)
342 #define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port)
343 #define BIO_set_conn_ip(b,ip) BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip)
344 #define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port)
345 #define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0)
346 #define BIO_get_conn_port(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1)
347 #define BIO_get_conn_ip(b,ip) BIO_ptr_ctrl(b,BIO_C_SET_CONNECT,2)
348 #define BIO_get_conn_int_port(b,port) BIO_int_ctrl(b,BIO_C_SET_CONNECT,3,port)
349
350
351 #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL)
352
353 /* BIO_s_accept_socket() */
354 #define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name)
355 #define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0)
356 /* #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */
357 #define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?"a":NULL)
358 #define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio)
359
360 #define BIO_BIND_NORMAL 0
361 #define BIO_BIND_REUSEADDR_IF_UNUSED 1
362 #define BIO_BIND_REUSEADDR 2
363 #define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL)
364 #define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL)
365
366 #define BIO_do_connect(b) BIO_do_handshake(b)
367 #define BIO_do_accept(b) BIO_do_handshake(b)
368 #define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL)
369
370 /* BIO_s_proxy_client() */
371 #define BIO_set_url(b,url) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url))
372 #define BIO_set_proxies(b,p) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p))
373 /* BIO_set_nbio(b,n) */
374 #define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s))
375 /* BIO *BIO_get_filter_bio(BIO *bio); */
376 #define BIO_set_proxy_cb(b,cb) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(char *)(cb))
377 #define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk)
378 #define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool)
379
380 #define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp)
381 #define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p))
382 #define BIO_get_url(b,url) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url))
383 #define BIO_get_no_connect_return(b) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL)
384
385 #define BIO_set_fd(b,fd,c) BIO_int_ctrl(b,BIO_C_SET_FD,c,fd)
386 #define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c)
387
388 #define BIO_set_fp(b,fp,c) BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp)
389 #define BIO_get_fp(b,fpp) BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp)
390
391 #define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL)
392 #define BIO_tell(b) (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL)
393
394 /* name is cast to lose const, but might be better to route through a function
395 so we can do it safely */
396 #ifdef CONST_STRICT
397 /* If you are wondering why this isn't defined, its because CONST_STRICT is
398 * purely a compile-time kludge to allow const to be checked.
399 */
400 int BIO_read_filename(BIO *b,const char *name);
401 #else
402 #define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
403 BIO_CLOSE|BIO_FP_READ,(char *)name)
404 #endif
405 #define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
406 BIO_CLOSE|BIO_FP_WRITE,name)
407 #define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
408 BIO_CLOSE|BIO_FP_APPEND,name)
409 #define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
410 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name)
411
412 /* WARNING WARNING, this ups the reference count on the read bio of the
413 * SSL structure. This is because the ssl read BIO is now pointed to by
414 * the next_bio field in the bio. So when you free the BIO, make sure
415 * you are doing a BIO_free_all() to catch the underlying BIO. */
416 #define BIO_set_ssl(b,ssl,c) BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl)
417 #define BIO_get_ssl(b,sslp) BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp)
418 #define BIO_set_ssl_mode(b,client) BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL)
419 #define BIO_set_ssl_renegotiate_bytes(b,num) \
420 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL);
421 #define BIO_get_num_renegotiates(b) \
422 BIO_ctrl(b,BIO_C_SET_SSL_NUM_RENEGOTIATES,0,NULL);
423 #define BIO_set_ssl_renegotiate_timeout(b,seconds) \
424 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL);
425
426 /* defined in evp.h */
427 /* #define BIO_set_md(b,md) BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */
428
429 #define BIO_get_mem_data(b,pp) BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp)
430 #define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm)
431 #define BIO_get_mem_ptr(b,pp) BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp)
432 #define BIO_set_mem_eof_return(b,v) \
433 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL)
434
435 /* For the BIO_f_buffer() type */
436 #define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL)
437 #define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL)
438 #define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0)
439 #define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1)
440 #define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf)
441
442 /* Don't use the next one unless you know what you are doing :-) */
443 #define BIO_dup_state(b,ret) BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret))
444
445 #define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL)
446 #define BIO_eof(b) (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL)
447 #define BIO_set_close(b,c) (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL)
448 #define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL)
449 #define BIO_pending(b) (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL)
450 #define BIO_wpending(b) (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL)
451 /* ...pending macros have inappropriate return type */
452 size_t BIO_ctrl_pending(BIO *b);
453 size_t BIO_ctrl_wpending(BIO *b);
454 #define BIO_flush(b) (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL)
455 #define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0,(char *)cbp)
456 #define BIO_set_info_callback(b,cb) (int)BIO_ctrl(b,BIO_CTRL_SET_CALLBACK,0,(char *)cb)
457
458 /* For the BIO_f_buffer() type */
459 #define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL)
460
461 /* For BIO_s_bio() */
462 #define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL)
463 #define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL)
464 #define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2)
465 #define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL)
466 /* macros with inappropriate type -- but ...pending macros use int too: */
467 #define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL)
468 #define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL)
469 size_t BIO_ctrl_get_write_guarantee(BIO *b);
470 size_t BIO_ctrl_get_read_request(BIO *b);
471 int BIO_ctrl_reset_read_request(BIO *b);
472
473 #ifdef NO_STDIO
474 #define NO_FP_API
475 #endif
476
477
478 /* These two aren't currently implemented */
479 /* int BIO_get_ex_num(BIO *bio); */
480 /* void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)()); */
481 int BIO_set_ex_data(BIO *bio,int idx,void *data);
482 void *BIO_get_ex_data(BIO *bio,int idx);
483 int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
484 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
485 unsigned long BIO_number_read(BIO *bio);
486 unsigned long BIO_number_written(BIO *bio);
487
488 # if defined(WIN16) && defined(_WINDLL)
489 BIO_METHOD *BIO_s_file_internal(void);
490 BIO *BIO_new_file_internal(char *filename, char *mode);
491 BIO *BIO_new_fp_internal(FILE *stream, int close_flag);
492 # define BIO_s_file BIO_s_file_internal
493 # define BIO_new_file BIO_new_file_internal
494 # define BIO_new_fp BIO_new_fp_internal
495 # else /* FP_API */
496 BIO_METHOD *BIO_s_file(void );
497 BIO *BIO_new_file(const char *filename, const char *mode);
498 BIO *BIO_new_fp(FILE *stream, int close_flag);
499 # define BIO_s_file_internal BIO_s_file
500 # define BIO_new_file_internal BIO_new_file
501 # define BIO_new_fp_internal BIO_s_file
502 # endif /* FP_API */
503 BIO * BIO_new(BIO_METHOD *type);
504 int BIO_set(BIO *a,BIO_METHOD *type);
505 int BIO_free(BIO *a);
506 int BIO_read(BIO *b, void *data, int len);
507 int BIO_gets(BIO *bp,char *buf, int size);
508 int BIO_write(BIO *b, const char *data, int len);
509 int BIO_puts(BIO *bp,const char *buf);
510 long BIO_ctrl(BIO *bp,int cmd,long larg,void *parg);
511 char * BIO_ptr_ctrl(BIO *bp,int cmd,long larg);
512 long BIO_int_ctrl(BIO *bp,int cmd,long larg,int iarg);
513 BIO * BIO_push(BIO *b,BIO *append);
514 BIO * BIO_pop(BIO *b);
515 void BIO_free_all(BIO *a);
516 BIO * BIO_find_type(BIO *b,int bio_type);
517 BIO * BIO_get_retry_BIO(BIO *bio, int *reason);
518 int BIO_get_retry_reason(BIO *bio);
519 BIO * BIO_dup_chain(BIO *in);
520
521 int BIO_nread0(BIO *bio, char **buf);
522 int BIO_nread(BIO *bio, char **buf, int num);
523 int BIO_nwrite0(BIO *bio, char **buf);
524 int BIO_nwrite(BIO *bio, char **buf, int num);
525
526 #ifndef WIN16
527 long BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi,
528 long argl,long ret);
529 #else
530 long _far _loadds BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi,
531 long argl,long ret);
532 #endif
533
534 BIO_METHOD *BIO_s_mem(void);
535 BIO *BIO_new_mem_buf(void *buf, int len);
536 BIO_METHOD *BIO_s_socket(void);
537 BIO_METHOD *BIO_s_connect(void);
538 BIO_METHOD *BIO_s_accept(void);
539 BIO_METHOD *BIO_s_fd(void);
540 BIO_METHOD *BIO_s_log(void);
541 BIO_METHOD *BIO_s_bio(void);
542 BIO_METHOD *BIO_s_null(void);
543 BIO_METHOD *BIO_f_null(void);
544 BIO_METHOD *BIO_f_buffer(void);
545 BIO_METHOD *BIO_f_nbio_test(void);
546 /* BIO_METHOD *BIO_f_ber(void); */
547
548 int BIO_sock_should_retry(int i);
549 int BIO_sock_non_fatal_error(int error);
550 int BIO_fd_should_retry(int i);
551 int BIO_fd_non_fatal_error(int error);
552 int BIO_dump(BIO *b,const char *bytes,int len);
553
554 struct hostent *BIO_gethostbyname(const char *name);
555 /* We might want a thread-safe interface too:
556 * struct hostent *BIO_gethostbyname_r(const char *name,
557 * struct hostent *result, void *buffer, size_t buflen);
558 * or something similar (caller allocates a struct hostent,
559 * pointed to by "result", and additional buffer space for the various
560 * substructures; if the buffer does not suffice, NULL is returned
561 * and an appropriate error code is set).
562 */
563 int BIO_sock_error(int sock);
564 int BIO_socket_ioctl(int fd, long type, unsigned long *arg);
565 int BIO_socket_nbio(int fd,int mode);
566 int BIO_get_port(const char *str, unsigned short *port_ptr);
567 int BIO_get_host_ip(const char *str, unsigned char *ip);
568 int BIO_get_accept_socket(char *host_port,int mode);
569 int BIO_accept(int sock,char **ip_port);
570 int BIO_sock_init(void );
571 void BIO_sock_cleanup(void);
572 int BIO_set_tcp_ndelay(int sock,int turn_on);
573
574 void ERR_load_BIO_strings(void );
575
576 BIO *BIO_new_socket(int sock, int close_flag);
577 BIO *BIO_new_fd(int fd, int close_flag);
578 BIO *BIO_new_connect(char *host_port);
579 BIO *BIO_new_accept(char *host_port);
580
581 int BIO_new_bio_pair(BIO **bio1, size_t writebuf1,
582 BIO **bio2, size_t writebuf2);
583 /* If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints.
584 * Otherwise returns 0 and sets *bio1 and *bio2 to NULL.
585 * Size 0 uses default value.
586 */
587
588 void BIO_copy_next_retry(BIO *b);
589
590 long BIO_ghbn_ctrl(int cmd,int iarg,char *parg);
591
592 int BIO_printf(BIO *bio, ...);
593
594 /* BEGIN ERROR CODES */
595 /* The following lines are auto generated by the script mkerr.pl. Any changes
596 * made after this point may be overwritten when the script is next run.
597 */
598
599 /* Error codes for the BIO functions. */
600
601 /* Function codes. */
602 #define BIO_F_ACPT_STATE 100
603 #define BIO_F_BIO_ACCEPT 101
604 #define BIO_F_BIO_BER_GET_HEADER 102
605 #define BIO_F_BIO_CTRL 103
606 #define BIO_F_BIO_GETHOSTBYNAME 120
607 #define BIO_F_BIO_GETS 104
608 #define BIO_F_BIO_GET_ACCEPT_SOCKET 105
609 #define BIO_F_BIO_GET_HOST_IP 106
610 #define BIO_F_BIO_GET_PORT 107
611 #define BIO_F_BIO_MAKE_PAIR 121
612 #define BIO_F_BIO_NEW 108
613 #define BIO_F_BIO_NEW_FILE 109
614 #define BIO_F_BIO_NEW_MEM_BUF 126
615 #define BIO_F_BIO_NREAD 123
616 #define BIO_F_BIO_NREAD0 124
617 #define BIO_F_BIO_NWRITE 125
618 #define BIO_F_BIO_NWRITE0 122
619 #define BIO_F_BIO_PUTS 110
620 #define BIO_F_BIO_READ 111
621 #define BIO_F_BIO_SOCK_INIT 112
622 #define BIO_F_BIO_WRITE 113
623 #define BIO_F_BUFFER_CTRL 114
624 #define BIO_F_CONN_STATE 115
625 #define BIO_F_FILE_CTRL 116
626 #define BIO_F_MEM_WRITE 117
627 #define BIO_F_SSL_NEW 118
628 #define BIO_F_WSASTARTUP 119
629
630 /* Reason codes. */
631 #define BIO_R_ACCEPT_ERROR 100
632 #define BIO_R_BAD_FOPEN_MODE 101
633 #define BIO_R_BAD_HOSTNAME_LOOKUP 102
634 #define BIO_R_BROKEN_PIPE 124
635 #define BIO_R_CONNECT_ERROR 103
636 #define BIO_R_ERROR_SETTING_NBIO 104
637 #define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET 105
638 #define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET 106
639 #define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET 107
640 #define BIO_R_INVALID_ARGUMENT 125
641 #define BIO_R_INVALID_IP_ADDRESS 108
642 #define BIO_R_IN_USE 123
643 #define BIO_R_KEEPALIVE 109
644 #define BIO_R_NBIO_CONNECT_ERROR 110
645 #define BIO_R_NO_ACCEPT_PORT_SPECIFIED 111
646 #define BIO_R_NO_HOSTNAME_SPECIFIED 112
647 #define BIO_R_NO_PORT_DEFINED 113
648 #define BIO_R_NO_PORT_SPECIFIED 114
649 #define BIO_R_NULL_PARAMETER 115
650 #define BIO_R_TAG_MISMATCH 116
651 #define BIO_R_UNABLE_TO_BIND_SOCKET 117
652 #define BIO_R_UNABLE_TO_CREATE_SOCKET 118
653 #define BIO_R_UNABLE_TO_LISTEN_SOCKET 119
654 #define BIO_R_UNINITIALIZED 120
655 #define BIO_R_UNSUPPORTED_METHOD 121
656 #define BIO_R_WRITE_TO_READ_ONLY_BIO 126
657 #define BIO_R_WSASTARTUP 122
658
659 #ifdef __cplusplus
660 }
661 #endif
662 #endif
663
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