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Massive constification.
[thirdparty/openssl.git] / crypto / bio / bio.h
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d02b48c6 1/* crypto/bio/bio.h */
58964a49 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6
RE		 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
58964a49
RE		 66#include "crypto.h"
67
d02b48c6
RE		 68/* These are the 'types' of BIOs */
69#define BIO_TYPE_NONE 0
70#define BIO_TYPE_MEM (1|0x0400)
71#define BIO_TYPE_FILE (2|0x0400)
72
73#define BIO_TYPE_FD (4|0x0400|0x0100)
74#define BIO_TYPE_SOCKET (5|0x0400|0x0100)
75#define BIO_TYPE_NULL (6|0x0400)
76#define BIO_TYPE_SSL (7|0x0200)
77#define BIO_TYPE_MD (8|0x0200) /* pasive filter */
78#define BIO_TYPE_BUFFER (9|0x0200) /* filter */
79#define BIO_TYPE_CIPHER (10|0x0200) /* filter */
80#define BIO_TYPE_BASE64 (11|0x0200) /* filter */
81#define BIO_TYPE_CONNECT (12|0x0400|0x0100) /* socket - connect */
82#define BIO_TYPE_ACCEPT (13|0x0400|0x0100) /* socket for accept */
58964a49 83#define BIO_TYPE_PROXY_CLIENT (14|0x0200) /* client proxy BIO */
d02b48c6
RE		 84#define BIO_TYPE_PROXY_SERVER (15|0x0200) /* server proxy BIO */
85#define BIO_TYPE_NBIO_TEST (16|0x0200) /* server proxy BIO */
86#define BIO_TYPE_NULL_FILTER (17|0x0200)
dfeab068 87#define BIO_TYPE_BER (18|0x0200) /* BER -> bin filter */
d02b48c6
RE		 88
89#define BIO_TYPE_DESCRIPTOR 0x0100 /* socket, fd, connect or accept */
90#define BIO_TYPE_FILTER 0x0200
91#define BIO_TYPE_SOURCE_SINK 0x0400
92
93/* BIO_FILENAME_READ|BIO_CLOSE to open or close on free.
94 * BIO_set_fp(in,stdin,BIO_NOCLOSE); */
95#define BIO_NOCLOSE 0x00
96#define BIO_CLOSE 0x01
97
98/* These are used in the following macros and are passed to
99 * BIO_ctrl() */
100#define BIO_CTRL_RESET 1 /* opt - rewind/zero etc */
101#define BIO_CTRL_EOF 2 /* opt - are we at the eof */
102#define BIO_CTRL_INFO 3 /* opt - extra tit-bits */
103#define BIO_CTRL_SET 4 /* man - set the 'IO' type */
104#define BIO_CTRL_GET 5 /* man - get the 'IO' type */
105#define BIO_CTRL_PUSH 6 /* opt - internal, used to signify change */
106#define BIO_CTRL_POP 7 /* opt - internal, used to signify change */
107#define BIO_CTRL_GET_CLOSE 8 /* man - set the 'close' on free */
108#define BIO_CTRL_SET_CLOSE 9 /* man - set the 'close' on free */
109#define BIO_CTRL_PENDING 10 /* opt - is their more data buffered */
110#define BIO_CTRL_FLUSH 11 /* opt - 'flush' buffered output */
111#define BIO_CTRL_DUP 12 /* man - extra stuff for 'duped' BIO */
112#define BIO_CTRL_WPENDING 13 /* opt - number of bytes still to write */
58964a49
RE		 113/* callback is int cb(BIO *bio,state,ret); */
114#define BIO_CTRL_SET_CALLBACK 14 /* opt - set callback function */
115#define BIO_CTRL_GET_CALLBACK 15 /* opt - set callback function */
d02b48c6
RE		 116
117#define BIO_CTRL_SET_FILENAME 30 /* BIO_s_file special */
118
119/* modifiers */
120#define BIO_FP_READ 0x02
121#define BIO_FP_WRITE 0x04
122#define BIO_FP_APPEND 0x08
123#define BIO_FP_TEXT 0x10
124
125#define BIO_FLAGS_READ 0x01
126#define BIO_FLAGS_WRITE 0x02
127#define BIO_FLAGS_IO_SPECIAL 0x04
128#define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL)
129#define BIO_FLAGS_SHOULD_RETRY 0x08
130
58964a49
RE		 131/* Used in BIO_gethostbyname() */
132#define BIO_GHBN_CTRL_HITS 1
133#define BIO_GHBN_CTRL_MISSES 2
134#define BIO_GHBN_CTRL_CACHE_SIZE 3
135#define BIO_GHBN_CTRL_GET_ENTRY 4
136#define BIO_GHBN_CTRL_FLUSH 5
137
d02b48c6 138/* Mostly used in the SSL BIO */
58964a49
RE		 139/* Not used anymore
140 * #define BIO_FLAGS_PROTOCOL_DELAYED_READ 0x10
141 * #define BIO_FLAGS_PROTOCOL_DELAYED_WRITE 0x20
142 * #define BIO_FLAGS_PROTOCOL_STARTUP 0x40
143 */
144
145#define BIO_FLAGS_BASE64_NO_NL 0x100
d02b48c6
RE		 146
147#define BIO_set_flags(b,f) ((b)->flags|=(f))
58964a49 148#define BIO_get_flags(b) ((b)->flags)
d02b48c6
RE		 149#define BIO_set_retry_special(b) \
150 ((b)->flags|=(BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY))
151#define BIO_set_retry_read(b) \
152 ((b)->flags|=(BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY))
153#define BIO_set_retry_write(b) \
154 ((b)->flags|=(BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY))
155
156/* These are normally used internally in BIOs */
157#define BIO_clear_flags(b,f) ((b)->flags&= ~(f))
158#define BIO_clear_retry_flags(b) \
159 ((b)->flags&= ~(BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
160#define BIO_get_retry_flags(b) \
161 ((b)->flags&(BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
162
163/* These shouldbe used by the application to tell why we should retry */
164#define BIO_should_read(a) ((a)->flags & BIO_FLAGS_READ)
165#define BIO_should_write(a) ((a)->flags & BIO_FLAGS_WRITE)
166#define BIO_should_io_special(a) ((a)->flags & BIO_FLAGS_IO_SPECIAL)
167#define BIO_retry_type(a) ((a)->flags & BIO_FLAGS_RWS)
168#define BIO_should_retry(a) ((a)->flags & BIO_FLAGS_SHOULD_RETRY)
169
170/* The next two are used in conjunction with the
171 * BIO_should_io_special() condition. After this returns true,
172 * BIO *BIO_get_retry_BIO(BIO *bio, int *reason); will walk the BIO
173 * stack and return the 'reason' for the special and the offending BIO.
174 * Given a BIO, BIO_get_retry_reason(bio) will return the code. */
175/* Returned from the SSL bio when the certificate retrieval code had an error */
176#define BIO_RR_SSL_X509_LOOKUP 0x01
177/* Returned from the connect BIO when a connect would have blocked */
178#define BIO_RR_CONNECT 0x02
179
180/* These are passed by the BIO callback */
181#define BIO_CB_FREE 0x01
182#define BIO_CB_READ 0x02
183#define BIO_CB_WRITE 0x03
184#define BIO_CB_PUTS 0x04
185#define BIO_CB_GETS 0x05
186#define BIO_CB_CTRL 0x06
187
188/* The callback is called before and after the underling operation,
189 * The BIO_CB_RETURN flag indicates if it is after the call */
190#define BIO_CB_RETURN 0x80
191#define BIO_CB_return(a) ((a)|BIO_CB_RETURN))
192#define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN))
193#define BIO_cb_post(a) ((a)&BIO_CB_RETURN)
194
195#define BIO_set_callback(b,cb) ((b)->callback=(cb))
196#define BIO_set_callback_arg(b,arg) ((b)->cb_arg=(char *)(arg))
197#define BIO_get_callback_arg(b) ((b)->cb_arg)
198#define BIO_get_callback(b) ((b)->callback)
199#define BIO_method_name(b) ((b)->method->name)
200#define BIO_method_type(b) ((b)->method->type)
201
202#ifndef WIN16
203typedef struct bio_method_st
204 {
205 int type;
e778802f 206 const char *name;
d02b48c6
RE		 207 int (*bwrite)();
208 int (*bread)();
209 int (*bputs)();
210 int (*bgets)();
211 long (*ctrl)();
212 int (*create)();
213 int (*destroy)();
214 } BIO_METHOD;
215#else
216typedef struct bio_method_st
217 {
218 int type;
e778802f 219 const char *name;
d02b48c6
RE		 220 int (_far *bwrite)();
221 int (_far *bread)();
222 int (_far *bputs)();
223 int (_far *bgets)();
224 long (_far *ctrl)();
225 int (_far *create)();
226 int (_far *destroy)();
227 } BIO_METHOD;
228#endif
229
230typedef struct bio_st
231 {
232 BIO_METHOD *method;
233#ifndef NOPROTO
234 /* bio, mode, argp, argi, argl, ret */
e778802f 235 long (*callback)(struct bio_st *,int,const char *,int, long,long);
d02b48c6
RE		 236#else
237 long (*callback)();
238#endif
239 char *cb_arg; /* first argument for the callback */
240
241 int init;
242 int shutdown;
243 int flags; /* extra storage */
244 int retry_reason;
245 int num;
246 char *ptr;
247 struct bio_st *next_bio; /* used by filter BIOs */
248 struct bio_st *prev_bio; /* used by filter BIOs */
249 int references;
250 unsigned long num_read;
251 unsigned long num_write;
252
58964a49 253 CRYPTO_EX_DATA ex_data;
d02b48c6
RE		 254 } BIO;
255
256typedef struct bio_f_buffer_ctx_struct
257 {
258 /* BIO *bio; */ /* this is now in the BIO struct */
259 int ibuf_size; /* how big is the input buffer */
260 int obuf_size; /* how big is the output buffer */
261
262 char *ibuf; /* the char array */
263 int ibuf_len; /* how many bytes are in it */
264 int ibuf_off; /* write/read offset */
265
266 char *obuf; /* the char array */
267 int obuf_len; /* how many bytes are in it */
268 int obuf_off; /* write/read offset */
269 } BIO_F_BUFFER_CTX;
270
58964a49
RE		 271/* connect BIO stuff */
272#define BIO_CONN_S_BEFORE 1
273#define BIO_CONN_S_GET_IP 2
274#define BIO_CONN_S_GET_PORT 3
275#define BIO_CONN_S_CREATE_SOCKET 4
276#define BIO_CONN_S_CONNECT 5
277#define BIO_CONN_S_OK 6
278#define BIO_CONN_S_BLOCKED_CONNECT 7
279#define BIO_CONN_S_NBIO 8
dfeab068 280/*#define BIO_CONN_get_param_hostname BIO_ctrl */
58964a49 281
d02b48c6
RE		 282#define BIO_number_read(b) ((b)->num_read)
283#define BIO_number_written(b) ((b)->num_write)
284
285#define BIO_C_SET_CONNECT 100
286#define BIO_C_DO_STATE_MACHINE 101
287#define BIO_C_SET_NBIO 102
288#define BIO_C_SET_PROXY_PARAM 103
289#define BIO_C_SET_FD 104
290#define BIO_C_GET_FD 105
291#define BIO_C_SET_FILE_PTR 106
292#define BIO_C_GET_FILE_PTR 107
293#define BIO_C_SET_FILENAME 108
294#define BIO_C_SET_SSL 109
295#define BIO_C_GET_SSL 110
296#define BIO_C_SET_MD 111
297#define BIO_C_GET_MD 112
298#define BIO_C_GET_CIPHER_STATUS 113
299#define BIO_C_SET_BUF_MEM 114
300#define BIO_C_GET_BUF_MEM_PTR 115
301#define BIO_C_GET_BUFF_NUM_LINES 116
302#define BIO_C_SET_BUFF_SIZE 117
303#define BIO_C_SET_ACCEPT 118
304#define BIO_C_SSL_MODE 119
305#define BIO_C_GET_MD_CTX 120
306#define BIO_C_GET_PROXY_PARAM 121
58964a49
RE		 307#define BIO_C_SET_BUFF_READ_DATA 122 /* data to read first */
308#define BIO_C_GET_CONNECT 123
309#define BIO_C_GET_ACCEPT 124
310#define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125
311#define BIO_C_GET_SSL_NUM_RENEGOTIATES 126
312#define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127
dfeab068
RE		 313#define BIO_C_FILE_SEEK 128
314#define BIO_C_GET_CIPHER_CTX 129
315#define BIO_C_SET_BUF_MEM_EOF_RETURN 130/*return end of input value*/
316#define BIO_C_SET_BIND_MODE 131
317#define BIO_C_GET_BIND_MODE 132
318#define BIO_C_FILE_TELL 133
319#define BIO_C_GET_SOCKS 134
320#define BIO_C_SET_SOCKS 135
58964a49
RE		 321
322#define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,(char *)arg)
323#define BIO_get_app_data(s) BIO_get_ex_data(s,0)
324
dfeab068 325/* BIO_s_connect() and BIO_s_socks4a_connect() */
58964a49
RE		 326#define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name)
327#define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port)
328#define BIO_set_conn_ip(b,ip) BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip)
329#define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port)
330#define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0)
331#define BIO_get_conn_port(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1)
332#define BIO_get_conn_ip(b,ip) BIO_ptr_ctrl(b,BIO_C_SET_CONNECT,2)
dfeab068
RE		 333#define BIO_get_conn_int_port(b,port) BIO_int_ctrl(b,BIO_C_SET_CONNECT,3,port)
334
58964a49 335
d02b48c6
RE		 336#define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL)
337
338/* BIO_s_accept_socket() */
339#define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name)
58964a49 340#define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0)
d02b48c6 341/* #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */
58964a49 342#define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?"a":NULL)
d02b48c6
RE		 343#define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio)
344
dfeab068
RE		 345#define BIO_BIND_NORMAL 0
346#define BIO_BIND_REUSEADDR_IF_UNUSED 1
347#define BIO_BIND_REUSEADDR 2
348#define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL)
349#define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL)
350
d02b48c6
RE		 351#define BIO_do_connect(b) BIO_do_handshake(b)
352#define BIO_do_accept(b) BIO_do_handshake(b)
353#define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL)
354
355/* BIO_s_proxy_client() */
356#define BIO_set_url(b,url) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url))
357#define BIO_set_proxies(b,p) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p))
358/* BIO_set_nbio(b,n) */
359#define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s))
360/* BIO *BIO_get_filter_bio(BIO *bio); */
361#define BIO_set_proxy_cb(b,cb) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(char *)(cb))
362#define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk)
58964a49 363#define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool)
d02b48c6
RE		 364
365#define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp)
366#define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p))
367#define BIO_get_url(b,url) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url))
58964a49 368#define BIO_get_no_connect_return(b) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL)
d02b48c6 369
58964a49 370#define BIO_set_fd(b,fd,c) BIO_int_ctrl(b,BIO_C_SET_FD,c,fd)
d02b48c6
RE		 371#define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c)
372
373#define BIO_set_fp(b,fp,c) BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp)
374#define BIO_get_fp(b,fpp) BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp)
375
dfeab068
RE		 376#define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL)
377#define BIO_tell(b) (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL)
378
eb90a483
BL		 379/* name is cast to lose const, but might be better to route through a function
380 so we can do it safely */
e778802f
BL		 381#ifdef CONST_STRICT
382/* If you are wondering why this isn't defined, its because CONST_STRICT is
383 * purely a compile-time kludge to allow const to be checked.
384 */
385int BIO_read_filename(BIO *b,const char *name);
386#else
d02b48c6 387#define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
eb90a483 388 BIO_CLOSE|BIO_FP_READ,(char *)name)
e778802f 389#endif
d02b48c6
RE		 390#define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
391 BIO_CLOSE|BIO_FP_WRITE,name)
392#define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
393 BIO_CLOSE|BIO_FP_APPEND,name)
dfeab068
RE		 394#define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
395 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name)
d02b48c6 396
58964a49
RE		 397/* WARNING WARNING, this ups the reference count on the read bio of the
398 * SSL structure. This is because the ssl read BIO is now pointed to by
399 * the next_bio field in the bio. So when you free the BIO, make sure
400 * you are doing a BIO_free_all() to catch the underlying BIO. */
d02b48c6
RE		 401#define BIO_set_ssl(b,ssl,c) BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl)
402#define BIO_get_ssl(b,sslp) BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp)
403#define BIO_set_ssl_mode(b,client) BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL)
58964a49
RE		 404#define BIO_set_ssl_renegotiate_bytes(b,num) \
405 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL);
406#define BIO_get_num_renegotiates(b) \
407 BIO_ctrl(b,BIO_C_SET_SSL_NUM_RENEGOTIATES,0,NULL);
408#define BIO_set_ssl_renegotiate_timeout(b,seconds) \
409 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL);
d02b48c6
RE		 410
411/* defined in evp.h */
412/* #define BIO_set_md(b,md) BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */
413
dfeab068 414#define BIO_get_mem_data(b,pp) BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp)
d02b48c6
RE		 415#define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm)
416#define BIO_get_mem_ptr(b,pp) BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp)
dfeab068
RE		 417#define BIO_set_mem_eof_return(b,v) \
418 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL)
d02b48c6
RE		 419
420/* For the BIO_f_buffer() type */
421#define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL)
422#define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL)
58964a49
RE		 423#define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0)
424#define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1)
425#define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf)
d02b48c6
RE		 426
427/* Don't use the next one unless you know what you are doing :-) */
58964a49 428#define BIO_dup_state(b,ret) BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret))
d02b48c6
RE		 429
430#define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL)
431#define BIO_eof(b) (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL)
432#define BIO_set_close(b,c) (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL)
433#define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL)
434#define BIO_pending(b) (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL)
435#define BIO_wpending(b) (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL)
436#define BIO_flush(b) (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL)
58964a49
RE		 437#define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0,(char *)cbp)
438#define BIO_set_info_callback(b,cb) (int)BIO_ctrl(b,BIO_CTRL_SET_CALLBACK,0,(char *)cb)
d02b48c6
RE		 439
440/* For the BIO_f_buffer() type */
441#define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL)
442
58964a49
RE		 443#ifdef NO_STDIO
444#define NO_FP_API
445#endif
446
447#ifndef NOPROTO
0cc39579
DSH		 448
449int BIO_get_ex_num(BIO *bio);
450int BIO_set_ex_data(BIO *bio,int idx,char *data);
451char *BIO_get_ex_data(BIO *bio,int idx);
452void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)());
453int BIO_get_ex_new_index(long argl, char *argp, int (*new_func)(),
454 int (*dup_func)(), void (*free_func)());
455
58964a49
RE		 456# if defined(WIN16) && defined(_WINDLL)
457BIO_METHOD *BIO_s_file_internal(void);
458BIO *BIO_new_file_internal(char *filename, char *mode);
459BIO *BIO_new_fp_internal(FILE *stream, int close_flag);
460# define BIO_s_file BIO_s_file_internal
461# define BIO_new_file BIO_new_file_internal
462# define BIO_new_fp BIO_new_fp_internal
463# else /* FP_API */
464BIO_METHOD *BIO_s_file(void );
465BIO *BIO_new_file(char *filename, char *mode);
466BIO *BIO_new_fp(FILE *stream, int close_flag);
467# define BIO_s_file_internal BIO_s_file
468# define BIO_new_file_internal BIO_new_file
469# define BIO_new_fp_internal BIO_s_file
470# endif /* FP_API */
471#else
0cc39579 472
d4d2f98c
DSH		 473/* These two aren't currently implemented */
474/*int BIO_get_ex_num();*/
475/*void BIO_set_ex_free_func();*/
0cc39579
DSH		 476int BIO_set_ex_data();
477char *BIO_get_ex_data();
0cc39579
DSH		 478int BIO_get_ex_new_index();
479
58964a49
RE		 480# if defined(WIN16) && defined(_WINDLL)
481BIO_METHOD *BIO_s_file_internal();
482BIO *BIO_new_file_internal();
483BIO *BIO_new_fp_internal();
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();
489BIO *BIO_new_file();
490BIO *BIO_new_fp();
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 */
495#endif
496
d02b48c6
RE		 497#ifndef NOPROTO
498BIO * BIO_new(BIO_METHOD *type);
499int BIO_set(BIO *a,BIO_METHOD *type);
500int BIO_free(BIO *a);
501int BIO_read(BIO *b, char *data, int len);
502int BIO_gets(BIO *bp,char *buf, int size);
e778802f
BL		 503int BIO_write(BIO *b, const char *data, int len);
504int BIO_puts(BIO *bp,const char *buf);
d02b48c6 505long BIO_ctrl(BIO *bp,int cmd,long larg,char *parg);
58964a49
RE		 506char * BIO_ptr_ctrl(BIO *bp,int cmd,long larg);
507long BIO_int_ctrl(BIO *bp,int cmd,long larg,int iarg);
d02b48c6
RE		 508BIO * BIO_push(BIO *b,BIO *append);
509BIO * BIO_pop(BIO *b);
510void BIO_free_all(BIO *a);
511BIO * BIO_find_type(BIO *b,int bio_type);
512BIO * BIO_get_retry_BIO(BIO *bio, int *reason);
513int BIO_get_retry_reason(BIO *bio);
514BIO * BIO_dup_chain(BIO *in);
515
516#ifndef WIN16
e778802f 517long BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi,
d02b48c6
RE		 518 long argl,long ret);
519#else
e778802f 520long _far _loadds BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi,
d02b48c6
RE		 521 long argl,long ret);
522#endif
523
d02b48c6
RE		 524BIO_METHOD *BIO_s_mem(void);
525BIO_METHOD *BIO_s_socket(void);
526BIO_METHOD *BIO_s_connect(void);
527BIO_METHOD *BIO_s_accept(void);
528BIO_METHOD *BIO_s_fd(void);
0849d138 529BIO_METHOD *BIO_s_log(void);
d02b48c6
RE		 530BIO_METHOD *BIO_s_null(void);
531BIO_METHOD *BIO_f_null(void);
d02b48c6 532BIO_METHOD *BIO_f_buffer(void);
dfeab068
RE		 533BIO_METHOD *BIO_f_nbio_test(void);
534/* BIO_METHOD *BIO_f_ber(void); */
d02b48c6
RE		 535
536int BIO_sock_should_retry(int i);
537int BIO_sock_non_fatal_error(int error);
538int BIO_fd_should_retry(int i);
539int BIO_fd_non_fatal_error(int error);
e778802f 540int BIO_dump(BIO *b,const char *bytes,int len);
d02b48c6 541
e778802f 542struct hostent *BIO_gethostbyname(const char *name);
d02b48c6
RE		 543int BIO_sock_error(int sock);
544int BIO_socket_ioctl(int fd, long type, unsigned long *arg);
dfeab068 545int BIO_socket_nbio(int fd,int mode);
e778802f
BL		 546int BIO_get_port(const char *str, unsigned short *port_ptr);
547int BIO_get_host_ip(const char *str, unsigned char *ip);
dfeab068 548int BIO_get_accept_socket(char *host_port,int mode);
d02b48c6
RE		 549int BIO_accept(int sock,char **ip_port);
550int BIO_sock_init(void );
551void BIO_sock_cleanup(void);
552int BIO_set_tcp_ndelay(int sock,int turn_on);
553
554void ERR_load_BIO_strings(void );
555
d02b48c6
RE		 556BIO *BIO_new_socket(int sock, int close_flag);
557BIO *BIO_new_fd(int fd, int close_flag);
558BIO *BIO_new_connect(char *host_port);
559BIO *BIO_new_accept(char *host_port);
560
561void BIO_copy_next_retry(BIO *b);
562
58964a49
RE		 563long BIO_ghbn_ctrl(int cmd,int iarg,char *parg);
564
d02b48c6
RE		 565#else
566
567BIO * BIO_new();
568int BIO_set();
569int BIO_free();
570int BIO_read();
571int BIO_gets();
572int BIO_write();
573int BIO_puts();
58964a49 574char * BIO_ptr_ctrl();
d02b48c6 575long BIO_ctrl();
58964a49 576long BIO_int_ctrl();
d02b48c6
RE		 577BIO * BIO_push();
578BIO * BIO_pop();
579void BIO_free_all();
580BIO * BIO_find_type();
581BIO * BIO_get_retry_BIO();
582int BIO_get_retry_reason();
583BIO * BIO_dup_chain();
584
585#ifndef WIN16
586long BIO_debug_callback();
587#else
588long _far _loadds BIO_debug_callback();
589#endif
590
d02b48c6
RE		 591BIO_METHOD *BIO_s_mem();
592BIO_METHOD *BIO_s_socket();
593BIO_METHOD *BIO_s_connect();
594BIO_METHOD *BIO_s_accept();
595BIO_METHOD *BIO_s_fd();
0849d138 596BIO_METHOD *BIO_s_log();
d02b48c6
RE		 597BIO_METHOD *BIO_s_null();
598BIO_METHOD *BIO_f_null();
599BIO_METHOD *BIO_f_buffer();
600BIO_METHOD *BIO_f_nbio_test();
dfeab068 601/* BIO_METHOD *BIO_f_ber(); */
d02b48c6
RE		 602
603int BIO_sock_should_retry();
604int BIO_sock_non_fatal_error();
605int BIO_fd_should_retry();
606int BIO_fd_non_fatal_error();
607int BIO_dump();
608
609struct hostent *BIO_gethostbyname();
610int BIO_sock_error();
611int BIO_socket_ioctl();
dfeab068 612int BIO_socket_nbio();
d02b48c6
RE		 613int BIO_get_port();
614int BIO_get_host_ip();
615int BIO_get_accept_socket();
616int BIO_accept();
617int BIO_sock_init();
618void BIO_sock_cleanup();
619int BIO_set_tcp_ndelay();
620
621void ERR_load_BIO_strings();
622
d02b48c6
RE		 623BIO *BIO_new_socket();
624BIO *BIO_new_fd();
625BIO *BIO_new_connect();
626BIO *BIO_new_accept();
627
628void BIO_copy_next_retry();
629
dfeab068 630long BIO_ghbn_ctrl();
58964a49 631
d02b48c6
RE		 632#endif
633
634/* Tim Hudson's portable varargs stuff */
635
636#ifndef NOPROTO
637#define VAR_ANSI /* select ANSI version by default */
638#endif
639
640#ifdef VAR_ANSI
641/* ANSI version of a "portable" macro set for variable length args */
642#ifndef __STDARG_H__ /**/
643#include <stdarg.h>
644#endif /**/
645
646#define VAR_PLIST(arg1type,arg1) arg1type arg1, ...
647#define VAR_PLIST2(arg1type,arg1,arg2type,arg2) arg1type arg1,arg2type arg2,...
648#define VAR_ALIST
649#define VAR_BDEFN(args,arg1type,arg1) va_list args
650#define VAR_BDEFN2(args,arg1type,arg1,arg2type,arg2) va_list args
651#define VAR_INIT(args,arg1type,arg1) va_start(args,arg1);
652#define VAR_INIT2(args,arg1type,arg1,arg2type,arg2) va_start(args,arg2);
653#define VAR_ARG(args,type,arg) arg=va_arg(args,type)
654#define VAR_END(args) va_end(args);
655
656#else
657
658/* K&R version of a "portable" macro set for variable length args */
659#ifndef __VARARGS_H__
660#include <varargs.h>
661#endif
662
663#define VAR_PLIST(arg1type,arg1) va_alist
664#define VAR_PLIST2(arg1type,arg1,arg2type,arg2) va_alist
665#define VAR_ALIST va_dcl
666#define VAR_BDEFN(args,arg1type,arg1) va_list args; arg1type arg1
667#define VAR_BDEFN2(args,arg1type,arg1,arg2type,arg2) va_list args; \
668 arg1type arg1; arg2type arg2
669#define VAR_INIT(args,arg1type,arg1) va_start(args); \
670 arg1=va_arg(args,arg1type);
671#define VAR_INIT2(args,arg1type,arg1,arg2type,arg2) va_start(args); \
672 arg1=va_arg(args,arg1type); arg2=va_arg(args,arg2type);
673#define VAR_ARG(args,type,arg) arg=va_arg(args,type)
674#define VAR_END(args) va_end(args);
675
676#endif
677
678#ifndef NOPROTO
679int BIO_printf( VAR_PLIST( BIO *, bio ) );
680#else
681int BIO_printf();
682#endif
683
684/* BEGIN ERROR CODES */
685/* Error codes for the BIO functions. */
686
687/* Function codes. */
688#define BIO_F_ACPT_STATE 100
689#define BIO_F_BIO_ACCEPT 101
dfeab068
RE		 690#define BIO_F_BIO_BER_GET_HEADER 102
691#define BIO_F_BIO_CTRL 103
692#define BIO_F_BIO_GETS 104
693#define BIO_F_BIO_GET_ACCEPT_SOCKET 105
694#define BIO_F_BIO_GET_HOST_IP 106
695#define BIO_F_BIO_GET_PORT 107
696#define BIO_F_BIO_NEW 108
697#define BIO_F_BIO_NEW_FILE 109
698#define BIO_F_BIO_PUTS 110
699#define BIO_F_BIO_READ 111
700#define BIO_F_BIO_SOCK_INIT 112
701#define BIO_F_BIO_WRITE 113
702#define BIO_F_BUFFER_CTRL 114
703#define BIO_F_CONN_STATE 115
704#define BIO_F_FILE_CTRL 116
705#define BIO_F_MEM_WRITE 117
651d0aff
RE		 706#define BIO_F_SSL_NEW 118
707#define BIO_F_WSASTARTUP 119
d02b48c6
RE		 708
709/* Reason codes. */
710#define BIO_R_ACCEPT_ERROR 100
711#define BIO_R_BAD_FOPEN_MODE 101
712#define BIO_R_BAD_HOSTNAME_LOOKUP 102
713#define BIO_R_CONNECT_ERROR 103
714#define BIO_R_ERROR_SETTING_NBIO 104
715#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET 105
716#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET 106
717#define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET 107
718#define BIO_R_INVALID_IP_ADDRESS 108
58964a49
RE		 719#define BIO_R_KEEPALIVE 109
720#define BIO_R_NBIO_CONNECT_ERROR 110
721#define BIO_R_NO_ACCEPT_PORT_SPECIFIED 111
722#define BIO_R_NO_HOSTHNAME_SPECIFIED 112
723#define BIO_R_NO_PORT_DEFINED 113
724#define BIO_R_NO_PORT_SPECIFIED 114
725#define BIO_R_NULL_PARAMETER 115
651d0aff
RE		 726#define BIO_R_TAG_MISMATCH 116
727#define BIO_R_UNABLE_TO_BIND_SOCKET 117
728#define BIO_R_UNABLE_TO_CREATE_SOCKET 118
729#define BIO_R_UNABLE_TO_LISTEN_SOCKET 119
730#define BIO_R_UNINITALISED 120
731#define BIO_R_UNSUPPORTED_METHOD 121
732#define BIO_R_WSASTARTUP 122
d02b48c6
RE		 733
734#ifdef __cplusplus
735}
736#endif
737#endif
738
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