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[thirdparty/openssl.git] / crypto / bio / bio.h
1 /* crypto/bio/bio.h */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59 #ifndef HEADER_BIO_H
60 #define HEADER_BIO_H
61
62 #include <openssl/e_os2.h>
63
64 #ifndef OPENSSL_NO_FP_API
65 # include <stdio.h>
66 #endif
67 #include <stdarg.h>
68
69 #include <openssl/crypto.h>
70
71 #ifdef __cplusplus
72 extern "C" {
73 #endif
74
75 /* These are the 'types' of BIOs */
76 #define BIO_TYPE_NONE 0
77 #define BIO_TYPE_MEM (1|0x0400)
78 #define BIO_TYPE_FILE (2|0x0400)
79
80 #define BIO_TYPE_FD (4|0x0400|0x0100)
81 #define BIO_TYPE_SOCKET (5|0x0400|0x0100)
82 #define BIO_TYPE_NULL (6|0x0400)
83 #define BIO_TYPE_SSL (7|0x0200)
84 #define BIO_TYPE_MD (8|0x0200) /* passive filter */
85 #define BIO_TYPE_BUFFER (9|0x0200) /* filter */
86 #define BIO_TYPE_CIPHER (10|0x0200) /* filter */
87 #define BIO_TYPE_BASE64 (11|0x0200) /* filter */
88 #define BIO_TYPE_CONNECT (12|0x0400|0x0100) /* socket - connect */
89 #define BIO_TYPE_ACCEPT (13|0x0400|0x0100) /* socket for accept */
90 #define BIO_TYPE_PROXY_CLIENT (14|0x0200) /* client proxy BIO */
91 #define BIO_TYPE_PROXY_SERVER (15|0x0200) /* server proxy BIO */
92 #define BIO_TYPE_NBIO_TEST (16|0x0200) /* server proxy BIO */
93 #define BIO_TYPE_NULL_FILTER (17|0x0200)
94 #define BIO_TYPE_BER (18|0x0200) /* BER -> bin filter */
95 #define BIO_TYPE_BIO (19|0x0400) /* (half a) BIO pair */
96 #define BIO_TYPE_LINEBUFFER (20|0x0200) /* filter */
97 #define BIO_TYPE_DGRAM (21|0x0400|0x0100)
98 #define BIO_TYPE_ASN1 (22|0x0200) /* filter */
99 #define BIO_TYPE_COMP (23|0x0200) /* filter */
100
101 #define BIO_TYPE_DESCRIPTOR 0x0100 /* socket, fd, connect or accept */
102 #define BIO_TYPE_FILTER 0x0200
103 #define BIO_TYPE_SOURCE_SINK 0x0400
104
105 /* BIO_FILENAME_READ|BIO_CLOSE to open or close on free.
106 * BIO_set_fp(in,stdin,BIO_NOCLOSE); */
107 #define BIO_NOCLOSE 0x00
108 #define BIO_CLOSE 0x01
109
110 /* These are used in the following macros and are passed to
111 * BIO_ctrl() */
112 #define BIO_CTRL_RESET 1 /* opt - rewind/zero etc */
113 #define BIO_CTRL_EOF 2 /* opt - are we at the eof */
114 #define BIO_CTRL_INFO 3 /* opt - extra tit-bits */
115 #define BIO_CTRL_SET 4 /* man - set the 'IO' type */
116 #define BIO_CTRL_GET 5 /* man - get the 'IO' type */
117 #define BIO_CTRL_PUSH 6 /* opt - internal, used to signify change */
118 #define BIO_CTRL_POP 7 /* opt - internal, used to signify change */
119 #define BIO_CTRL_GET_CLOSE 8 /* man - set the 'close' on free */
120 #define BIO_CTRL_SET_CLOSE 9 /* man - set the 'close' on free */
121 #define BIO_CTRL_PENDING 10 /* opt - is their more data buffered */
122 #define BIO_CTRL_FLUSH 11 /* opt - 'flush' buffered output */
123 #define BIO_CTRL_DUP 12 /* man - extra stuff for 'duped' BIO */
124 #define BIO_CTRL_WPENDING 13 /* opt - number of bytes still to write */
125 /* callback is int cb(BIO *bio,state,ret); */
126 #define BIO_CTRL_SET_CALLBACK 14 /* opt - set callback function */
127 #define BIO_CTRL_GET_CALLBACK 15 /* opt - set callback function */
128
129 #define BIO_CTRL_SET_FILENAME 30 /* BIO_s_file special */
130
131 /* dgram BIO stuff */
132 #define BIO_CTRL_DGRAM_CONNECT 31 /* BIO dgram special */
133 #define BIO_CTRL_DGRAM_SET_CONNECTED 32 /* allow for an externally
134 * connected socket to be
135 * passed in */
136 #define BIO_CTRL_DGRAM_SET_RECV_TIMEOUT 33 /* setsockopt, essentially */
137 #define BIO_CTRL_DGRAM_GET_RECV_TIMEOUT 34 /* getsockopt, essentially */
138 #define BIO_CTRL_DGRAM_SET_SEND_TIMEOUT 35 /* setsockopt, essentially */
139 #define BIO_CTRL_DGRAM_GET_SEND_TIMEOUT 36 /* getsockopt, essentially */
140
141 #define BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP 37 /* flag whether the last */
142 #define BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP 38 /* I/O operation tiemd out */
143
144 /* #ifdef IP_MTU_DISCOVER */
145 #define BIO_CTRL_DGRAM_MTU_DISCOVER 39 /* set DF bit on egress packets */
146 /* #endif */
147
148 #define BIO_CTRL_DGRAM_QUERY_MTU 40 /* as kernel for current MTU */
149 #define BIO_CTRL_DGRAM_GET_MTU 41 /* get cached value for MTU */
150 #define BIO_CTRL_DGRAM_SET_MTU 42 /* set cached value for
151 * MTU. want to use this
152 * if asking the kernel
153 * fails */
154
155 #define BIO_CTRL_DGRAM_MTU_EXCEEDED 43 /* check whether the MTU
156 * was exceed in the
157 * previous write
158 * operation */
159
160 #define BIO_CTRL_DGRAM_SET_PEER 44 /* Destination for the data */
161
162 #define BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT 45 /* Next DTLS handshake timeout to
163 * adjust socket timeouts */
164
165 /* modifiers */
166 #define BIO_FP_READ 0x02
167 #define BIO_FP_WRITE 0x04
168 #define BIO_FP_APPEND 0x08
169 #define BIO_FP_TEXT 0x10
170
171 #define BIO_FLAGS_READ 0x01
172 #define BIO_FLAGS_WRITE 0x02
173 #define BIO_FLAGS_IO_SPECIAL 0x04
174 #define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL)
175 #define BIO_FLAGS_SHOULD_RETRY 0x08
176 #ifndef BIO_FLAGS_UPLINK
177 /* "UPLINK" flag denotes file descriptors provided by application.
178 It defaults to 0, as most platforms don't require UPLINK interface. */
179 #define BIO_FLAGS_UPLINK 0
180 #endif
181
182 /* Used in BIO_gethostbyname() */
183 #define BIO_GHBN_CTRL_HITS 1
184 #define BIO_GHBN_CTRL_MISSES 2
185 #define BIO_GHBN_CTRL_CACHE_SIZE 3
186 #define BIO_GHBN_CTRL_GET_ENTRY 4
187 #define BIO_GHBN_CTRL_FLUSH 5
188
189 /* Mostly used in the SSL BIO */
190 /* Not used anymore
191 * #define BIO_FLAGS_PROTOCOL_DELAYED_READ 0x10
192 * #define BIO_FLAGS_PROTOCOL_DELAYED_WRITE 0x20
193 * #define BIO_FLAGS_PROTOCOL_STARTUP 0x40
194 */
195
196 #define BIO_FLAGS_BASE64_NO_NL 0x100
197
198 /* This is used with memory BIOs: it means we shouldn't free up or change the
199 * data in any way.
200 */
201 #define BIO_FLAGS_MEM_RDONLY 0x200
202
203 typedef struct bio_st BIO;
204
205 void BIO_set_flags(BIO *b, int flags);
206 int BIO_test_flags(const BIO *b, int flags);
207 void BIO_clear_flags(BIO *b, int flags);
208
209 #define BIO_get_flags(b) BIO_test_flags(b, ~(0x0))
210 #define BIO_set_retry_special(b) \
211 BIO_set_flags(b, (BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY))
212 #define BIO_set_retry_read(b) \
213 BIO_set_flags(b, (BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY))
214 #define BIO_set_retry_write(b) \
215 BIO_set_flags(b, (BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY))
216
217 /* These are normally used internally in BIOs */
218 #define BIO_clear_retry_flags(b) \
219 BIO_clear_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
220 #define BIO_get_retry_flags(b) \
221 BIO_test_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
222
223 /* These should be used by the application to tell why we should retry */
224 #define BIO_should_read(a) BIO_test_flags(a, BIO_FLAGS_READ)
225 #define BIO_should_write(a) BIO_test_flags(a, BIO_FLAGS_WRITE)
226 #define BIO_should_io_special(a) BIO_test_flags(a, BIO_FLAGS_IO_SPECIAL)
227 #define BIO_retry_type(a) BIO_test_flags(a, BIO_FLAGS_RWS)
228 #define BIO_should_retry(a) BIO_test_flags(a, BIO_FLAGS_SHOULD_RETRY)
229
230 /* The next three are used in conjunction with the
231 * BIO_should_io_special() condition. After this returns true,
232 * BIO *BIO_get_retry_BIO(BIO *bio, int *reason); will walk the BIO
233 * stack and return the 'reason' for the special and the offending BIO.
234 * Given a BIO, BIO_get_retry_reason(bio) will return the code. */
235 /* Returned from the SSL bio when the certificate retrieval code had an error */
236 #define BIO_RR_SSL_X509_LOOKUP 0x01
237 /* Returned from the connect BIO when a connect would have blocked */
238 #define BIO_RR_CONNECT 0x02
239 /* Returned from the accept BIO when an accept would have blocked */
240 #define BIO_RR_ACCEPT 0x03
241
242 /* These are passed by the BIO callback */
243 #define BIO_CB_FREE 0x01
244 #define BIO_CB_READ 0x02
245 #define BIO_CB_WRITE 0x03
246 #define BIO_CB_PUTS 0x04
247 #define BIO_CB_GETS 0x05
248 #define BIO_CB_CTRL 0x06
249
250 /* The callback is called before and after the underling operation,
251 * The BIO_CB_RETURN flag indicates if it is after the call */
252 #define BIO_CB_RETURN 0x80
253 #define BIO_CB_return(a) ((a)|BIO_CB_RETURN))
254 #define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN))
255 #define BIO_cb_post(a) ((a)&BIO_CB_RETURN)
256
257 long (*BIO_get_callback(const BIO *b)) (struct bio_st *,int,const char *,int, long,long);
258 void BIO_set_callback(BIO *b,
259 long (*callback)(struct bio_st *,int,const char *,int, long,long));
260 char *BIO_get_callback_arg(const BIO *b);
261 void BIO_set_callback_arg(BIO *b, char *arg);
262
263 const char * BIO_method_name(const BIO *b);
264 int BIO_method_type(const BIO *b);
265
266 typedef void bio_info_cb(struct bio_st *, int, const char *, int, long, long);
267
268 typedef struct bio_method_st
269 {
270 int type;
271 const char *name;
272 int (*bwrite)(BIO *, const char *, int);
273 int (*bread)(BIO *, char *, int);
274 int (*bputs)(BIO *, const char *);
275 int (*bgets)(BIO *, char *, int);
276 long (*ctrl)(BIO *, int, long, void *);
277 int (*create)(BIO *);
278 int (*destroy)(BIO *);
279 long (*callback_ctrl)(BIO *, int, bio_info_cb *);
280 } BIO_METHOD;
281
282 struct bio_st
283 {
284 BIO_METHOD *method;
285 /* bio, mode, argp, argi, argl, ret */
286 long (*callback)(struct bio_st *,int,const char *,int, long,long);
287 char *cb_arg; /* first argument for the callback */
288
289 int init;
290 int shutdown;
291 int flags; /* extra storage */
292 int retry_reason;
293 int num;
294 void *ptr;
295 struct bio_st *next_bio; /* used by filter BIOs */
296 struct bio_st *prev_bio; /* used by filter BIOs */
297 int references;
298 unsigned long num_read;
299 unsigned long num_write;
300
301 CRYPTO_EX_DATA ex_data;
302 };
303
304 DECLARE_STACK_OF(BIO)
305
306 typedef struct bio_f_buffer_ctx_struct
307 {
308 /* BIO *bio; */ /* this is now in the BIO struct */
309 int ibuf_size; /* how big is the input buffer */
310 int obuf_size; /* how big is the output buffer */
311
312 char *ibuf; /* the char array */
313 int ibuf_len; /* how many bytes are in it */
314 int ibuf_off; /* write/read offset */
315
316 char *obuf; /* the char array */
317 int obuf_len; /* how many bytes are in it */
318 int obuf_off; /* write/read offset */
319 } BIO_F_BUFFER_CTX;
320
321 /* Prefix and suffix callback in ASN1 BIO */
322 typedef int asn1_ps_func(BIO *b, unsigned char **pbuf, int *plen, void *parg);
323
324 /* connect BIO stuff */
325 #define BIO_CONN_S_BEFORE 1
326 #define BIO_CONN_S_GET_IP 2
327 #define BIO_CONN_S_GET_PORT 3
328 #define BIO_CONN_S_CREATE_SOCKET 4
329 #define BIO_CONN_S_CONNECT 5
330 #define BIO_CONN_S_OK 6
331 #define BIO_CONN_S_BLOCKED_CONNECT 7
332 #define BIO_CONN_S_NBIO 8
333 /*#define BIO_CONN_get_param_hostname BIO_ctrl */
334
335 #define BIO_C_SET_CONNECT 100
336 #define BIO_C_DO_STATE_MACHINE 101
337 #define BIO_C_SET_NBIO 102
338 #define BIO_C_SET_PROXY_PARAM 103
339 #define BIO_C_SET_FD 104
340 #define BIO_C_GET_FD 105
341 #define BIO_C_SET_FILE_PTR 106
342 #define BIO_C_GET_FILE_PTR 107
343 #define BIO_C_SET_FILENAME 108
344 #define BIO_C_SET_SSL 109
345 #define BIO_C_GET_SSL 110
346 #define BIO_C_SET_MD 111
347 #define BIO_C_GET_MD 112
348 #define BIO_C_GET_CIPHER_STATUS 113
349 #define BIO_C_SET_BUF_MEM 114
350 #define BIO_C_GET_BUF_MEM_PTR 115
351 #define BIO_C_GET_BUFF_NUM_LINES 116
352 #define BIO_C_SET_BUFF_SIZE 117
353 #define BIO_C_SET_ACCEPT 118
354 #define BIO_C_SSL_MODE 119
355 #define BIO_C_GET_MD_CTX 120
356 #define BIO_C_GET_PROXY_PARAM 121
357 #define BIO_C_SET_BUFF_READ_DATA 122 /* data to read first */
358 #define BIO_C_GET_CONNECT 123
359 #define BIO_C_GET_ACCEPT 124
360 #define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125
361 #define BIO_C_GET_SSL_NUM_RENEGOTIATES 126
362 #define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127
363 #define BIO_C_FILE_SEEK 128
364 #define BIO_C_GET_CIPHER_CTX 129
365 #define BIO_C_SET_BUF_MEM_EOF_RETURN 130/*return end of input value*/
366 #define BIO_C_SET_BIND_MODE 131
367 #define BIO_C_GET_BIND_MODE 132
368 #define BIO_C_FILE_TELL 133
369 #define BIO_C_GET_SOCKS 134
370 #define BIO_C_SET_SOCKS 135
371
372 #define BIO_C_SET_WRITE_BUF_SIZE 136/* for BIO_s_bio */
373 #define BIO_C_GET_WRITE_BUF_SIZE 137
374 #define BIO_C_MAKE_BIO_PAIR 138
375 #define BIO_C_DESTROY_BIO_PAIR 139
376 #define BIO_C_GET_WRITE_GUARANTEE 140
377 #define BIO_C_GET_READ_REQUEST 141
378 #define BIO_C_SHUTDOWN_WR 142
379 #define BIO_C_NREAD0 143
380 #define BIO_C_NREAD 144
381 #define BIO_C_NWRITE0 145
382 #define BIO_C_NWRITE 146
383 #define BIO_C_RESET_READ_REQUEST 147
384 #define BIO_C_SET_MD_CTX 148
385
386 #define BIO_C_SET_PREFIX 149
387 #define BIO_C_GET_PREFIX 150
388 #define BIO_C_SET_SUFFIX 151
389 #define BIO_C_GET_SUFFIX 152
390
391 #define BIO_C_SET_EX_ARG 153
392 #define BIO_C_GET_EX_ARG 154
393
394 #define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,arg)
395 #define BIO_get_app_data(s) BIO_get_ex_data(s,0)
396
397 /* BIO_s_connect() and BIO_s_socks4a_connect() */
398 #define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name)
399 #define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port)
400 #define BIO_set_conn_ip(b,ip) BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip)
401 #define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port)
402 #define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0)
403 #define BIO_get_conn_port(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1)
404 #define BIO_get_conn_ip(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,2)
405 #define BIO_get_conn_int_port(b) BIO_int_ctrl(b,BIO_C_GET_CONNECT,3)
406
407
408 #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL)
409
410 /* BIO_s_accept_socket() */
411 #define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name)
412 #define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0)
413 /* #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */
414 #define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?"a":NULL)
415 #define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio)
416
417 #define BIO_BIND_NORMAL 0
418 #define BIO_BIND_REUSEADDR_IF_UNUSED 1
419 #define BIO_BIND_REUSEADDR 2
420 #define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL)
421 #define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL)
422
423 #define BIO_do_connect(b) BIO_do_handshake(b)
424 #define BIO_do_accept(b) BIO_do_handshake(b)
425 #define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL)
426
427 /* BIO_s_proxy_client() */
428 #define BIO_set_url(b,url) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url))
429 #define BIO_set_proxies(b,p) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p))
430 /* BIO_set_nbio(b,n) */
431 #define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s))
432 /* BIO *BIO_get_filter_bio(BIO *bio); */
433 #define BIO_set_proxy_cb(b,cb) BIO_callback_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(void *(*cb)()))
434 #define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk)
435 #define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool)
436
437 #define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp)
438 #define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p))
439 #define BIO_get_url(b,url) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url))
440 #define BIO_get_no_connect_return(b) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL)
441
442 #define BIO_set_fd(b,fd,c) BIO_int_ctrl(b,BIO_C_SET_FD,c,fd)
443 #define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c)
444
445 #define BIO_set_fp(b,fp,c) BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp)
446 #define BIO_get_fp(b,fpp) BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp)
447
448 #define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL)
449 #define BIO_tell(b) (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL)
450
451 /* name is cast to lose const, but might be better to route through a function
452 so we can do it safely */
453 #ifdef CONST_STRICT
454 /* If you are wondering why this isn't defined, its because CONST_STRICT is
455 * purely a compile-time kludge to allow const to be checked.
456 */
457 int BIO_read_filename(BIO *b,const char *name);
458 #else
459 #define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
460 BIO_CLOSE|BIO_FP_READ,(char *)name)
461 #endif
462 #define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
463 BIO_CLOSE|BIO_FP_WRITE,name)
464 #define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
465 BIO_CLOSE|BIO_FP_APPEND,name)
466 #define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
467 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name)
468
469 /* WARNING WARNING, this ups the reference count on the read bio of the
470 * SSL structure. This is because the ssl read BIO is now pointed to by
471 * the next_bio field in the bio. So when you free the BIO, make sure
472 * you are doing a BIO_free_all() to catch the underlying BIO. */
473 #define BIO_set_ssl(b,ssl,c) BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl)
474 #define BIO_get_ssl(b,sslp) BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp)
475 #define BIO_set_ssl_mode(b,client) BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL)
476 #define BIO_set_ssl_renegotiate_bytes(b,num) \
477 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL);
478 #define BIO_get_num_renegotiates(b) \
479 BIO_ctrl(b,BIO_C_GET_SSL_NUM_RENEGOTIATES,0,NULL);
480 #define BIO_set_ssl_renegotiate_timeout(b,seconds) \
481 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL);
482
483 /* defined in evp.h */
484 /* #define BIO_set_md(b,md) BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */
485
486 #define BIO_get_mem_data(b,pp) BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp)
487 #define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm)
488 #define BIO_get_mem_ptr(b,pp) BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp)
489 #define BIO_set_mem_eof_return(b,v) \
490 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL)
491
492 /* For the BIO_f_buffer() type */
493 #define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL)
494 #define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL)
495 #define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0)
496 #define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1)
497 #define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf)
498
499 /* Don't use the next one unless you know what you are doing :-) */
500 #define BIO_dup_state(b,ret) BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret))
501
502 #define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL)
503 #define BIO_eof(b) (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL)
504 #define BIO_set_close(b,c) (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL)
505 #define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL)
506 #define BIO_pending(b) (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL)
507 #define BIO_wpending(b) (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL)
508 /* ...pending macros have inappropriate return type */
509 size_t BIO_ctrl_pending(BIO *b);
510 size_t BIO_ctrl_wpending(BIO *b);
511 #define BIO_flush(b) (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL)
512 #define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0, \
513 cbp)
514 #define BIO_set_info_callback(b,cb) (int)BIO_callback_ctrl(b,BIO_CTRL_SET_CALLBACK,cb)
515
516 /* For the BIO_f_buffer() type */
517 #define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL)
518
519 /* For BIO_s_bio() */
520 #define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL)
521 #define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL)
522 #define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2)
523 #define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL)
524 #define BIO_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL)
525 /* macros with inappropriate type -- but ...pending macros use int too: */
526 #define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL)
527 #define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL)
528 size_t BIO_ctrl_get_write_guarantee(BIO *b);
529 size_t BIO_ctrl_get_read_request(BIO *b);
530 int BIO_ctrl_reset_read_request(BIO *b);
531
532 /* ctrl macros for dgram */
533 #define BIO_ctrl_dgram_connect(b,peer) \
534 (int)BIO_ctrl(b,BIO_CTRL_DGRAM_CONNECT,0, (char *)peer)
535 #define BIO_ctrl_set_connected(b, state, peer) \
536 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_CONNECTED, state, (char *)peer)
537 #define BIO_dgram_recv_timedout(b) \
538 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP, 0, NULL)
539 #define BIO_dgram_send_timedout(b) \
540 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP, 0, NULL)
541 #define BIO_dgram_set_peer(b,peer) \
542 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, (char *)peer)
543
544 /* These two aren't currently implemented */
545 /* int BIO_get_ex_num(BIO *bio); */
546 /* void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)()); */
547 int BIO_set_ex_data(BIO *bio,int idx,void *data);
548 void *BIO_get_ex_data(BIO *bio,int idx);
549 int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
550 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
551 unsigned long BIO_number_read(BIO *bio);
552 unsigned long BIO_number_written(BIO *bio);
553
554 /* For BIO_f_asn1() */
555 int BIO_asn1_set_prefix(BIO *b, asn1_ps_func *prefix,
556 asn1_ps_func *prefix_free);
557 int BIO_asn1_get_prefix(BIO *b, asn1_ps_func **pprefix,
558 asn1_ps_func **pprefix_free);
559 int BIO_asn1_set_suffix(BIO *b, asn1_ps_func *suffix,
560 asn1_ps_func *suffix_free);
561 int BIO_asn1_get_suffix(BIO *b, asn1_ps_func **psuffix,
562 asn1_ps_func **psuffix_free);
563
564 # ifndef OPENSSL_NO_FP_API
565 BIO_METHOD *BIO_s_file(void );
566 BIO *BIO_new_file(const char *filename, const char *mode);
567 BIO *BIO_new_fp(FILE *stream, int close_flag);
568 # define BIO_s_file_internal BIO_s_file
569 # endif
570 BIO * BIO_new(BIO_METHOD *type);
571 int BIO_set(BIO *a,BIO_METHOD *type);
572 int BIO_free(BIO *a);
573 void BIO_vfree(BIO *a);
574 int BIO_read(BIO *b, void *data, int len);
575 int BIO_gets(BIO *bp,char *buf, int size);
576 int BIO_write(BIO *b, const void *data, int len);
577 int BIO_puts(BIO *bp,const char *buf);
578 int BIO_indent(BIO *b,int indent,int max);
579 long BIO_ctrl(BIO *bp,int cmd,long larg,void *parg);
580 long BIO_callback_ctrl(BIO *b, int cmd, void (*fp)(struct bio_st *, int, const char *, int, long, long));
581 char * BIO_ptr_ctrl(BIO *bp,int cmd,long larg);
582 long BIO_int_ctrl(BIO *bp,int cmd,long larg,int iarg);
583 BIO * BIO_push(BIO *b,BIO *append);
584 BIO * BIO_pop(BIO *b);
585 void BIO_free_all(BIO *a);
586 BIO * BIO_find_type(BIO *b,int bio_type);
587 BIO * BIO_next(BIO *b);
588 BIO * BIO_get_retry_BIO(BIO *bio, int *reason);
589 int BIO_get_retry_reason(BIO *bio);
590 BIO * BIO_dup_chain(BIO *in);
591
592 int BIO_nread0(BIO *bio, char **buf);
593 int BIO_nread(BIO *bio, char **buf, int num);
594 int BIO_nwrite0(BIO *bio, char **buf);
595 int BIO_nwrite(BIO *bio, char **buf, int num);
596
597 long BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi,
598 long argl,long ret);
599
600 BIO_METHOD *BIO_s_mem(void);
601 BIO *BIO_new_mem_buf(void *buf, int len);
602 BIO_METHOD *BIO_s_socket(void);
603 BIO_METHOD *BIO_s_connect(void);
604 BIO_METHOD *BIO_s_accept(void);
605 BIO_METHOD *BIO_s_fd(void);
606 #ifndef OPENSSL_SYS_OS2
607 BIO_METHOD *BIO_s_log(void);
608 #endif
609 BIO_METHOD *BIO_s_bio(void);
610 BIO_METHOD *BIO_s_null(void);
611 BIO_METHOD *BIO_f_null(void);
612 BIO_METHOD *BIO_f_buffer(void);
613 #ifdef OPENSSL_SYS_VMS
614 BIO_METHOD *BIO_f_linebuffer(void);
615 #endif
616 BIO_METHOD *BIO_f_nbio_test(void);
617 #ifndef OPENSSL_NO_DGRAM
618 BIO_METHOD *BIO_s_datagram(void);
619 #endif
620
621 /* BIO_METHOD *BIO_f_ber(void); */
622
623 int BIO_sock_should_retry(int i);
624 int BIO_sock_non_fatal_error(int error);
625 int BIO_dgram_non_fatal_error(int error);
626
627 int BIO_fd_should_retry(int i);
628 int BIO_fd_non_fatal_error(int error);
629 int BIO_dump_cb(int (*cb)(const void *data, size_t len, void *u),
630 void *u, const char *s, int len);
631 int BIO_dump_indent_cb(int (*cb)(const void *data, size_t len, void *u),
632 void *u, const char *s, int len, int indent);
633 int BIO_dump(BIO *b,const char *bytes,int len);
634 int BIO_dump_indent(BIO *b,const char *bytes,int len,int indent);
635 #ifndef OPENSSL_NO_FP_API
636 int BIO_dump_fp(FILE *fp, const char *s, int len);
637 int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent);
638 #endif
639 struct hostent *BIO_gethostbyname(const char *name);
640 /* We might want a thread-safe interface too:
641 * struct hostent *BIO_gethostbyname_r(const char *name,
642 * struct hostent *result, void *buffer, size_t buflen);
643 * or something similar (caller allocates a struct hostent,
644 * pointed to by "result", and additional buffer space for the various
645 * substructures; if the buffer does not suffice, NULL is returned
646 * and an appropriate error code is set).
647 */
648 int BIO_sock_error(int sock);
649 int BIO_socket_ioctl(int fd, long type, void *arg);
650 int BIO_socket_nbio(int fd,int mode);
651 int BIO_get_port(const char *str, unsigned short *port_ptr);
652 int BIO_get_host_ip(const char *str, unsigned char *ip);
653 int BIO_get_accept_socket(char *host_port,int mode);
654 int BIO_accept(int sock,char **ip_port);
655 int BIO_sock_init(void );
656 void BIO_sock_cleanup(void);
657 int BIO_set_tcp_ndelay(int sock,int turn_on);
658
659 BIO *BIO_new_socket(int sock, int close_flag);
660 BIO *BIO_new_dgram(int fd, int close_flag);
661 BIO *BIO_new_fd(int fd, int close_flag);
662 BIO *BIO_new_connect(char *host_port);
663 BIO *BIO_new_accept(char *host_port);
664
665 int BIO_new_bio_pair(BIO **bio1, size_t writebuf1,
666 BIO **bio2, size_t writebuf2);
667 /* If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints.
668 * Otherwise returns 0 and sets *bio1 and *bio2 to NULL.
669 * Size 0 uses default value.
670 */
671
672 void BIO_copy_next_retry(BIO *b);
673
674 /*long BIO_ghbn_ctrl(int cmd,int iarg,char *parg);*/
675
676 #ifdef __GNUC__
677 # define __bio_h__attr__ __attribute__
678 #else
679 # define __bio_h__attr__(x)
680 #endif
681 int BIO_printf(BIO *bio, const char *format, ...)
682 __bio_h__attr__((__format__(__printf__,2,3)));
683 int BIO_vprintf(BIO *bio, const char *format, va_list args)
684 __bio_h__attr__((__format__(__printf__,2,0)));
685 int BIO_snprintf(char *buf, size_t n, const char *format, ...)
686 __bio_h__attr__((__format__(__printf__,3,4)));
687 int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args)
688 __bio_h__attr__((__format__(__printf__,3,0)));
689 #undef __bio_h__attr__
690
691 /* BEGIN ERROR CODES */
692 /* The following lines are auto generated by the script mkerr.pl. Any changes
693 * made after this point may be overwritten when the script is next run.
694 */
695 void ERR_load_BIO_strings(void);
696
697 /* Error codes for the BIO functions. */
698
699 /* Function codes. */
700 #define BIO_F_ACPT_STATE 100
701 #define BIO_F_BIO_ACCEPT 101
702 #define BIO_F_BIO_BER_GET_HEADER 102
703 #define BIO_F_BIO_CALLBACK_CTRL 131
704 #define BIO_F_BIO_CTRL 103
705 #define BIO_F_BIO_GETHOSTBYNAME 120
706 #define BIO_F_BIO_GETS 104
707 #define BIO_F_BIO_GET_ACCEPT_SOCKET 105
708 #define BIO_F_BIO_GET_HOST_IP 106
709 #define BIO_F_BIO_GET_PORT 107
710 #define BIO_F_BIO_MAKE_PAIR 121
711 #define BIO_F_BIO_NEW 108
712 #define BIO_F_BIO_NEW_FILE 109
713 #define BIO_F_BIO_NEW_MEM_BUF 126
714 #define BIO_F_BIO_NREAD 123
715 #define BIO_F_BIO_NREAD0 124
716 #define BIO_F_BIO_NWRITE 125
717 #define BIO_F_BIO_NWRITE0 122
718 #define BIO_F_BIO_PUTS 110
719 #define BIO_F_BIO_READ 111
720 #define BIO_F_BIO_SOCK_INIT 112
721 #define BIO_F_BIO_WRITE 113
722 #define BIO_F_BUFFER_CTRL 114
723 #define BIO_F_CONN_CTRL 127
724 #define BIO_F_CONN_STATE 115
725 #define BIO_F_FILE_CTRL 116
726 #define BIO_F_FILE_READ 130
727 #define BIO_F_LINEBUFFER_CTRL 129
728 #define BIO_F_MEM_READ 128
729 #define BIO_F_MEM_WRITE 117
730 #define BIO_F_SSL_NEW 118
731 #define BIO_F_WSASTARTUP 119
732
733 /* Reason codes. */
734 #define BIO_R_ACCEPT_ERROR 100
735 #define BIO_R_BAD_FOPEN_MODE 101
736 #define BIO_R_BAD_HOSTNAME_LOOKUP 102
737 #define BIO_R_BROKEN_PIPE 124
738 #define BIO_R_CONNECT_ERROR 103
739 #define BIO_R_EOF_ON_MEMORY_BIO 127
740 #define BIO_R_ERROR_SETTING_NBIO 104
741 #define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET 105
742 #define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET 106
743 #define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET 107
744 #define BIO_R_INVALID_ARGUMENT 125
745 #define BIO_R_INVALID_IP_ADDRESS 108
746 #define BIO_R_IN_USE 123
747 #define BIO_R_KEEPALIVE 109
748 #define BIO_R_NBIO_CONNECT_ERROR 110
749 #define BIO_R_NO_ACCEPT_PORT_SPECIFIED 111
750 #define BIO_R_NO_HOSTNAME_SPECIFIED 112
751 #define BIO_R_NO_PORT_DEFINED 113
752 #define BIO_R_NO_PORT_SPECIFIED 114
753 #define BIO_R_NO_SUCH_FILE 128
754 #define BIO_R_NULL_PARAMETER 115
755 #define BIO_R_TAG_MISMATCH 116
756 #define BIO_R_UNABLE_TO_BIND_SOCKET 117
757 #define BIO_R_UNABLE_TO_CREATE_SOCKET 118
758 #define BIO_R_UNABLE_TO_LISTEN_SOCKET 119
759 #define BIO_R_UNINITIALIZED 120
760 #define BIO_R_UNSUPPORTED_METHOD 121
761 #define BIO_R_WRITE_TO_READ_ONLY_BIO 126
762 #define BIO_R_WSASTARTUP 122
763
764 #ifdef __cplusplus
765 }
766 #endif
767 #endif
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