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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#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
72extern "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_COMP (23|0x0200) /* filter */
99
100#define BIO_TYPE_DESCRIPTOR 0x0100 /* socket, fd, connect or accept */
101#define BIO_TYPE_FILTER 0x0200
102#define BIO_TYPE_SOURCE_SINK 0x0400
103
104/* BIO_FILENAME_READ|BIO_CLOSE to open or close on free.
105 * BIO_set_fp(in,stdin,BIO_NOCLOSE); */
106#define BIO_NOCLOSE 0x00
107#define BIO_CLOSE 0x01
108
109/* These are used in the following macros and are passed to
110 * BIO_ctrl() */
111#define BIO_CTRL_RESET 1 /* opt - rewind/zero etc */
112#define BIO_CTRL_EOF 2 /* opt - are we at the eof */
113#define BIO_CTRL_INFO 3 /* opt - extra tit-bits */
114#define BIO_CTRL_SET 4 /* man - set the 'IO' type */
115#define BIO_CTRL_GET 5 /* man - get the 'IO' type */
116#define BIO_CTRL_PUSH 6 /* opt - internal, used to signify change */
117#define BIO_CTRL_POP 7 /* opt - internal, used to signify change */
118#define BIO_CTRL_GET_CLOSE 8 /* man - set the 'close' on free */
119#define BIO_CTRL_SET_CLOSE 9 /* man - set the 'close' on free */
120#define BIO_CTRL_PENDING 10 /* opt - is their more data buffered */
121#define BIO_CTRL_FLUSH 11 /* opt - 'flush' buffered output */
122#define BIO_CTRL_DUP 12 /* man - extra stuff for 'duped' BIO */
123#define BIO_CTRL_WPENDING 13 /* opt - number of bytes still to write */
124/* callback is int cb(BIO *bio,state,ret); */
125#define BIO_CTRL_SET_CALLBACK 14 /* opt - set callback function */
126#define BIO_CTRL_GET_CALLBACK 15 /* opt - set callback function */
127
128#define BIO_CTRL_SET_FILENAME 30 /* BIO_s_file special */
129
130/* dgram BIO stuff */
131#define BIO_CTRL_DGRAM_CONNECT 31 /* BIO dgram special */
132#define BIO_CTRL_DGRAM_SET_CONNECTED 32 /* allow for an externally
133 * connected socket to be
134 * passed in */
135#define BIO_CTRL_DGRAM_SET_RECV_TIMEOUT 33 /* setsockopt, essentially */
136#define BIO_CTRL_DGRAM_GET_RECV_TIMEOUT 34 /* getsockopt, essentially */
137#define BIO_CTRL_DGRAM_SET_SEND_TIMEOUT 35 /* setsockopt, essentially */
138#define BIO_CTRL_DGRAM_GET_SEND_TIMEOUT 36 /* getsockopt, essentially */
139
140#define BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP 37 /* flag whether the last */
141#define BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP 38 /* I/O operation tiemd out */
142
143/* #ifdef IP_MTU_DISCOVER */
144#define BIO_CTRL_DGRAM_MTU_DISCOVER 39 /* set DF bit on egress packets */
145/* #endif */
146
147#define BIO_CTRL_DGRAM_QUERY_MTU 40 /* as kernel for current MTU */
148#define BIO_CTRL_DGRAM_GET_MTU 41 /* get cached value for MTU */
149#define BIO_CTRL_DGRAM_SET_MTU 42 /* set cached value for
150 * MTU. want to use this
151 * if asking the kernel
152 * fails */
153
154#define BIO_CTRL_DGRAM_MTU_EXCEEDED 43 /* check whether the MTU
155 * was exceed in the
156 * previous write
157 * operation */
158
159#define BIO_CTRL_DGRAM_SET_PEER 44 /* Destination for the data */
160
161
162/* modifiers */
163#define BIO_FP_READ 0x02
164#define BIO_FP_WRITE 0x04
165#define BIO_FP_APPEND 0x08
166#define BIO_FP_TEXT 0x10
167
168#define BIO_FLAGS_READ 0x01
169#define BIO_FLAGS_WRITE 0x02
170#define BIO_FLAGS_IO_SPECIAL 0x04
171#define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL)
172#define BIO_FLAGS_SHOULD_RETRY 0x08
173#ifndef BIO_FLAGS_UPLINK
174/* "UPLINK" flag denotes file descriptors provided by application.
175 It defaults to 0, as most platforms don't require UPLINK interface. */
176#define BIO_FLAGS_UPLINK 0
177#endif
178
179/* Used in BIO_gethostbyname() */
180#define BIO_GHBN_CTRL_HITS 1
181#define BIO_GHBN_CTRL_MISSES 2
182#define BIO_GHBN_CTRL_CACHE_SIZE 3
183#define BIO_GHBN_CTRL_GET_ENTRY 4
184#define BIO_GHBN_CTRL_FLUSH 5
185
186/* Mostly used in the SSL BIO */
187/* Not used anymore
188 * #define BIO_FLAGS_PROTOCOL_DELAYED_READ 0x10
189 * #define BIO_FLAGS_PROTOCOL_DELAYED_WRITE 0x20
190 * #define BIO_FLAGS_PROTOCOL_STARTUP 0x40
191 */
192
193#define BIO_FLAGS_BASE64_NO_NL 0x100
194
195/* This is used with memory BIOs: it means we shouldn't free up or change the
196 * data in any way.
197 */
198#define BIO_FLAGS_MEM_RDONLY 0x200
199
200typedef struct bio_st BIO;
201
202void BIO_set_flags(BIO *b, int flags);
203int BIO_test_flags(const BIO *b, int flags);
204void BIO_clear_flags(BIO *b, int flags);
205
206#define BIO_get_flags(b) BIO_test_flags(b, ~(0x0))
207#define BIO_set_retry_special(b) \
208 BIO_set_flags(b, (BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY))
209#define BIO_set_retry_read(b) \
210 BIO_set_flags(b, (BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY))
211#define BIO_set_retry_write(b) \
212 BIO_set_flags(b, (BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY))
213
214/* These are normally used internally in BIOs */
215#define BIO_clear_retry_flags(b) \
216 BIO_clear_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
217#define BIO_get_retry_flags(b) \
218 BIO_test_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
219
220/* These should be used by the application to tell why we should retry */
221#define BIO_should_read(a) BIO_test_flags(a, BIO_FLAGS_READ)
222#define BIO_should_write(a) BIO_test_flags(a, BIO_FLAGS_WRITE)
223#define BIO_should_io_special(a) BIO_test_flags(a, BIO_FLAGS_IO_SPECIAL)
224#define BIO_retry_type(a) BIO_test_flags(a, BIO_FLAGS_RWS)
225#define BIO_should_retry(a) BIO_test_flags(a, BIO_FLAGS_SHOULD_RETRY)
226
227/* The next three are used in conjunction with the
228 * BIO_should_io_special() condition. After this returns true,
229 * BIO *BIO_get_retry_BIO(BIO *bio, int *reason); will walk the BIO
230 * stack and return the 'reason' for the special and the offending BIO.
231 * Given a BIO, BIO_get_retry_reason(bio) will return the code. */
232/* Returned from the SSL bio when the certificate retrieval code had an error */
233#define BIO_RR_SSL_X509_LOOKUP 0x01
234/* Returned from the connect BIO when a connect would have blocked */
235#define BIO_RR_CONNECT 0x02
236/* Returned from the accept BIO when an accept would have blocked */
237#define BIO_RR_ACCEPT 0x03
238
239/* These are passed by the BIO callback */
240#define BIO_CB_FREE 0x01
241#define BIO_CB_READ 0x02
242#define BIO_CB_WRITE 0x03
243#define BIO_CB_PUTS 0x04
244#define BIO_CB_GETS 0x05
245#define BIO_CB_CTRL 0x06
246
247/* The callback is called before and after the underling operation,
248 * The BIO_CB_RETURN flag indicates if it is after the call */
249#define BIO_CB_RETURN 0x80
250#define BIO_CB_return(a) ((a)|BIO_CB_RETURN))
251#define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN))
252#define BIO_cb_post(a) ((a)&BIO_CB_RETURN)
253
254long (*BIO_get_callback(const BIO *b)) (struct bio_st *,int,const char *,int, long,long);
255void BIO_set_callback(BIO *b,
256 long (*callback)(struct bio_st *,int,const char *,int, long,long));
257char *BIO_get_callback_arg(const BIO *b);
258void BIO_set_callback_arg(BIO *b, char *arg);
259
260const char * BIO_method_name(const BIO *b);
261int BIO_method_type(const BIO *b);
262
263typedef void bio_info_cb(struct bio_st *, int, const char *, int, long, long);
264
265#ifndef OPENSSL_SYS_WIN16
266typedef struct bio_method_st
267 {
268 int type;
269 const char *name;
270 int (*bwrite)(BIO *, const char *, int);
271 int (*bread)(BIO *, char *, int);
272 int (*bputs)(BIO *, const char *);
273 int (*bgets)(BIO *, char *, int);
274 long (*ctrl)(BIO *, int, long, void *);
275 int (*create)(BIO *);
276 int (*destroy)(BIO *);
277 long (*callback_ctrl)(BIO *, int, bio_info_cb *);
278 } BIO_METHOD;
279#else
280typedef struct bio_method_st
281 {
282 int type;
283 const char *name;
284 int (_far *bwrite)();
285 int (_far *bread)();
286 int (_far *bputs)();
287 int (_far *bgets)();
288 long (_far *ctrl)();
289 int (_far *create)();
290 int (_far *destroy)();
291 long (_far *callback_ctrl)();
292 } BIO_METHOD;
293#endif
294
295struct bio_st
296 {
297 BIO_METHOD *method;
298 /* bio, mode, argp, argi, argl, ret */
299 long (*callback)(struct bio_st *,int,const char *,int, long,long);
300 char *cb_arg; /* first argument for the callback */
301
302 int init;
303 int shutdown;
304 int flags; /* extra storage */
305 int retry_reason;
306 int num;
307 void *ptr;
308 struct bio_st *next_bio; /* used by filter BIOs */
309 struct bio_st *prev_bio; /* used by filter BIOs */
310 int references;
311 unsigned long num_read;
312 unsigned long num_write;
313
314 CRYPTO_EX_DATA ex_data;
315 };
316
317DECLARE_STACK_OF(BIO)
318
319typedef struct bio_f_buffer_ctx_struct
320 {
321 /* BIO *bio; */ /* this is now in the BIO struct */
322 int ibuf_size; /* how big is the input buffer */
323 int obuf_size; /* how big is the output buffer */
324
325 char *ibuf; /* the char array */
326 int ibuf_len; /* how many bytes are in it */
327 int ibuf_off; /* write/read offset */
328
329 char *obuf; /* the char array */
330 int obuf_len; /* how many bytes are in it */
331 int obuf_off; /* write/read offset */
332 } BIO_F_BUFFER_CTX;
333
334/* connect BIO stuff */
335#define BIO_CONN_S_BEFORE 1
336#define BIO_CONN_S_GET_IP 2
337#define BIO_CONN_S_GET_PORT 3
338#define BIO_CONN_S_CREATE_SOCKET 4
339#define BIO_CONN_S_CONNECT 5
340#define BIO_CONN_S_OK 6
341#define BIO_CONN_S_BLOCKED_CONNECT 7
342#define BIO_CONN_S_NBIO 8
343/*#define BIO_CONN_get_param_hostname BIO_ctrl */
344
345#define BIO_C_SET_CONNECT 100
346#define BIO_C_DO_STATE_MACHINE 101
347#define BIO_C_SET_NBIO 102
348#define BIO_C_SET_PROXY_PARAM 103
349#define BIO_C_SET_FD 104
350#define BIO_C_GET_FD 105
351#define BIO_C_SET_FILE_PTR 106
352#define BIO_C_GET_FILE_PTR 107
353#define BIO_C_SET_FILENAME 108
354#define BIO_C_SET_SSL 109
355#define BIO_C_GET_SSL 110
356#define BIO_C_SET_MD 111
357#define BIO_C_GET_MD 112
358#define BIO_C_GET_CIPHER_STATUS 113
359#define BIO_C_SET_BUF_MEM 114
360#define BIO_C_GET_BUF_MEM_PTR 115
361#define BIO_C_GET_BUFF_NUM_LINES 116
362#define BIO_C_SET_BUFF_SIZE 117
363#define BIO_C_SET_ACCEPT 118
364#define BIO_C_SSL_MODE 119
365#define BIO_C_GET_MD_CTX 120
366#define BIO_C_GET_PROXY_PARAM 121
367#define BIO_C_SET_BUFF_READ_DATA 122 /* data to read first */
368#define BIO_C_GET_CONNECT 123
369#define BIO_C_GET_ACCEPT 124
370#define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125
371#define BIO_C_GET_SSL_NUM_RENEGOTIATES 126
372#define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127
373#define BIO_C_FILE_SEEK 128
374#define BIO_C_GET_CIPHER_CTX 129
375#define BIO_C_SET_BUF_MEM_EOF_RETURN 130/*return end of input value*/
376#define BIO_C_SET_BIND_MODE 131
377#define BIO_C_GET_BIND_MODE 132
378#define BIO_C_FILE_TELL 133
379#define BIO_C_GET_SOCKS 134
380#define BIO_C_SET_SOCKS 135
381
382#define BIO_C_SET_WRITE_BUF_SIZE 136/* for BIO_s_bio */
383#define BIO_C_GET_WRITE_BUF_SIZE 137
384#define BIO_C_MAKE_BIO_PAIR 138
385#define BIO_C_DESTROY_BIO_PAIR 139
386#define BIO_C_GET_WRITE_GUARANTEE 140
387#define BIO_C_GET_READ_REQUEST 141
388#define BIO_C_SHUTDOWN_WR 142
389#define BIO_C_NREAD0 143
390#define BIO_C_NREAD 144
391#define BIO_C_NWRITE0 145
392#define BIO_C_NWRITE 146
393#define BIO_C_RESET_READ_REQUEST 147
394#define BIO_C_SET_MD_CTX 148
395
396
397#define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,arg)
398#define BIO_get_app_data(s) BIO_get_ex_data(s,0)
399
400/* BIO_s_connect() and BIO_s_socks4a_connect() */
401#define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name)
402#define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port)
403#define BIO_set_conn_ip(b,ip) BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip)
404#define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port)
405#define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0)
406#define BIO_get_conn_port(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1)
407#define BIO_get_conn_ip(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,2)
408#define BIO_get_conn_int_port(b) BIO_int_ctrl(b,BIO_C_GET_CONNECT,3)
409
410
411#define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL)
412
413/* BIO_s_accept_socket() */
414#define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name)
415#define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0)
416/* #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */
417#define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?"a":NULL)
418#define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio)
419
420#define BIO_BIND_NORMAL 0
421#define BIO_BIND_REUSEADDR_IF_UNUSED 1
422#define BIO_BIND_REUSEADDR 2
423#define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL)
424#define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL)
425
426#define BIO_do_connect(b) BIO_do_handshake(b)
427#define BIO_do_accept(b) BIO_do_handshake(b)
428#define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL)
429
430/* BIO_s_proxy_client() */
431#define BIO_set_url(b,url) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url))
432#define BIO_set_proxies(b,p) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p))
433/* BIO_set_nbio(b,n) */
434#define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s))
435/* BIO *BIO_get_filter_bio(BIO *bio); */
436#define BIO_set_proxy_cb(b,cb) BIO_callback_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(void *(*cb)()))
437#define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk)
438#define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool)
439
440#define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp)
441#define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p))
442#define BIO_get_url(b,url) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url))
443#define BIO_get_no_connect_return(b) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL)
444
445#define BIO_set_fd(b,fd,c) BIO_int_ctrl(b,BIO_C_SET_FD,c,fd)
446#define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c)
447
448#define BIO_set_fp(b,fp,c) BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp)
449#define BIO_get_fp(b,fpp) BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp)
450
451#define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL)
452#define BIO_tell(b) (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL)
453
454/* name is cast to lose const, but might be better to route through a function
455 so we can do it safely */
456#ifdef CONST_STRICT
457/* If you are wondering why this isn't defined, its because CONST_STRICT is
458 * purely a compile-time kludge to allow const to be checked.
459 */
460int BIO_read_filename(BIO *b,const char *name);
461#else
462#define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
463 BIO_CLOSE|BIO_FP_READ,(char *)name)
464#endif
465#define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
466 BIO_CLOSE|BIO_FP_WRITE,name)
467#define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
468 BIO_CLOSE|BIO_FP_APPEND,name)
469#define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
470 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name)
471
472/* WARNING WARNING, this ups the reference count on the read bio of the
473 * SSL structure. This is because the ssl read BIO is now pointed to by
474 * the next_bio field in the bio. So when you free the BIO, make sure
475 * you are doing a BIO_free_all() to catch the underlying BIO. */
476#define BIO_set_ssl(b,ssl,c) BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl)
477#define BIO_get_ssl(b,sslp) BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp)
478#define BIO_set_ssl_mode(b,client) BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL)
479#define BIO_set_ssl_renegotiate_bytes(b,num) \
480 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL);
481#define BIO_get_num_renegotiates(b) \
482 BIO_ctrl(b,BIO_C_GET_SSL_NUM_RENEGOTIATES,0,NULL);
483#define BIO_set_ssl_renegotiate_timeout(b,seconds) \
484 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL);
485
486/* defined in evp.h */
487/* #define BIO_set_md(b,md) BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */
488
489#define BIO_get_mem_data(b,pp) BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp)
490#define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm)
491#define BIO_get_mem_ptr(b,pp) BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp)
492#define BIO_set_mem_eof_return(b,v) \
493 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL)
494
495/* For the BIO_f_buffer() type */
496#define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL)
497#define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL)
498#define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0)
499#define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1)
500#define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf)
501
502/* Don't use the next one unless you know what you are doing :-) */
503#define BIO_dup_state(b,ret) BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret))
504
505#define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL)
506#define BIO_eof(b) (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL)
507#define BIO_set_close(b,c) (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL)
508#define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL)
509#define BIO_pending(b) (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL)
510#define BIO_wpending(b) (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL)
511/* ...pending macros have inappropriate return type */
512size_t BIO_ctrl_pending(BIO *b);
513size_t BIO_ctrl_wpending(BIO *b);
514#define BIO_flush(b) (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL)
515#define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0, \
516 cbp)
517#define BIO_set_info_callback(b,cb) (int)BIO_callback_ctrl(b,BIO_CTRL_SET_CALLBACK,cb)
518
519/* For the BIO_f_buffer() type */
520#define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL)
521
522/* For BIO_s_bio() */
523#define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL)
524#define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL)
525#define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2)
526#define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL)
527#define BIO_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL)
528/* macros with inappropriate type -- but ...pending macros use int too: */
529#define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL)
530#define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL)
531size_t BIO_ctrl_get_write_guarantee(BIO *b);
532size_t BIO_ctrl_get_read_request(BIO *b);
533int BIO_ctrl_reset_read_request(BIO *b);
534
535/* ctrl macros for dgram */
536#define BIO_ctrl_dgram_connect(b,peer) \
537 (int)BIO_ctrl(b,BIO_CTRL_DGRAM_CONNECT,0, (char *)peer)
538#define BIO_ctrl_set_connected(b, state, peer) \
539 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_CONNECTED, state, (char *)peer)
540#define BIO_dgram_recv_timedout(b) \
541 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP, 0, NULL)
542#define BIO_dgram_send_timedout(b) \
543 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP, 0, NULL)
544#define BIO_dgram_set_peer(b,peer) \
545 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, (char *)peer)
546
547/* These two aren't currently implemented */
548/* int BIO_get_ex_num(BIO *bio); */
549/* void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)()); */
550int BIO_set_ex_data(BIO *bio,int idx,void *data);
551void *BIO_get_ex_data(BIO *bio,int idx);
552int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
553 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
554unsigned long BIO_number_read(BIO *bio);
555unsigned long BIO_number_written(BIO *bio);
556
557# ifndef OPENSSL_NO_FP_API
558# if defined(OPENSSL_SYS_WIN16) && defined(_WINDLL)
559BIO_METHOD *BIO_s_file_internal(void);
560BIO *BIO_new_file_internal(char *filename, char *mode);
561BIO *BIO_new_fp_internal(FILE *stream, int close_flag);
562# define BIO_s_file BIO_s_file_internal
563# define BIO_new_file BIO_new_file_internal
564# define BIO_new_fp BIO_new_fp_internal
565# else /* FP_API */
566BIO_METHOD *BIO_s_file(void );
567BIO *BIO_new_file(const char *filename, const char *mode);
568BIO *BIO_new_fp(FILE *stream, int close_flag);
569# define BIO_s_file_internal BIO_s_file
570# define BIO_new_file_internal BIO_new_file
571# define BIO_new_fp_internal BIO_s_file
572# endif /* FP_API */
573# endif
574BIO * BIO_new(BIO_METHOD *type);
575int BIO_set(BIO *a,BIO_METHOD *type);
576int BIO_free(BIO *a);
577void BIO_vfree(BIO *a);
578int BIO_read(BIO *b, void *data, int len);
579int BIO_gets(BIO *bp,char *buf, int size);
580int BIO_write(BIO *b, const void *data, int len);
581int BIO_puts(BIO *bp,const char *buf);
582int BIO_indent(BIO *b,int indent,int max);
583long BIO_ctrl(BIO *bp,int cmd,long larg,void *parg);
584long BIO_callback_ctrl(BIO *b, int cmd, void (*fp)(struct bio_st *, int, const char *, int, long, long));
585char * BIO_ptr_ctrl(BIO *bp,int cmd,long larg);
586long BIO_int_ctrl(BIO *bp,int cmd,long larg,int iarg);
587BIO * BIO_push(BIO *b,BIO *append);
588BIO * BIO_pop(BIO *b);
589void BIO_free_all(BIO *a);
590BIO * BIO_find_type(BIO *b,int bio_type);
591BIO * BIO_next(BIO *b);
592BIO * BIO_get_retry_BIO(BIO *bio, int *reason);
593int BIO_get_retry_reason(BIO *bio);
594BIO * BIO_dup_chain(BIO *in);
595
596int BIO_nread0(BIO *bio, char **buf);
597int BIO_nread(BIO *bio, char **buf, int num);
598int BIO_nwrite0(BIO *bio, char **buf);
599int BIO_nwrite(BIO *bio, char **buf, int num);
600
601#ifndef OPENSSL_SYS_WIN16
602long BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi,
603 long argl,long ret);
604#else
605long _far _loadds BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi,
606 long argl,long ret);
607#endif
608
609BIO_METHOD *BIO_s_mem(void);
610BIO *BIO_new_mem_buf(void *buf, int len);
611BIO_METHOD *BIO_s_socket(void);
612BIO_METHOD *BIO_s_connect(void);
613BIO_METHOD *BIO_s_accept(void);
614BIO_METHOD *BIO_s_fd(void);
615#ifndef OPENSSL_SYS_OS2
616BIO_METHOD *BIO_s_log(void);
617#endif
618BIO_METHOD *BIO_s_bio(void);
619BIO_METHOD *BIO_s_null(void);
620BIO_METHOD *BIO_f_null(void);
621BIO_METHOD *BIO_f_buffer(void);
622#ifdef OPENSSL_SYS_VMS
623BIO_METHOD *BIO_f_linebuffer(void);
624#endif
625BIO_METHOD *BIO_f_nbio_test(void);
626#ifndef OPENSSL_NO_DGRAM
627BIO_METHOD *BIO_s_datagram(void);
628#endif
629
630/* BIO_METHOD *BIO_f_ber(void); */
631
632int BIO_sock_should_retry(int i);
633int BIO_sock_non_fatal_error(int error);
634int BIO_dgram_non_fatal_error(int error);
635
636int BIO_fd_should_retry(int i);
637int BIO_fd_non_fatal_error(int error);
638int BIO_dump_cb(int (*cb)(const void *data, size_t len, void *u),
639 void *u, const char *s, int len);
640int BIO_dump_indent_cb(int (*cb)(const void *data, size_t len, void *u),
641 void *u, const char *s, int len, int indent);
642int BIO_dump(BIO *b,const char *bytes,int len);
643int BIO_dump_indent(BIO *b,const char *bytes,int len,int indent);
644#ifndef OPENSSL_NO_FP_API
645int BIO_dump_fp(FILE *fp, const char *s, int len);
646int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent);
647#endif
648struct hostent *BIO_gethostbyname(const char *name);
649/* We might want a thread-safe interface too:
650 * struct hostent *BIO_gethostbyname_r(const char *name,
651 * struct hostent *result, void *buffer, size_t buflen);
652 * or something similar (caller allocates a struct hostent,
653 * pointed to by "result", and additional buffer space for the various
654 * substructures; if the buffer does not suffice, NULL is returned
655 * and an appropriate error code is set).
656 */
657int BIO_sock_error(int sock);
658int BIO_socket_ioctl(int fd, long type, void *arg);
659int BIO_socket_nbio(int fd,int mode);
660int BIO_get_port(const char *str, unsigned short *port_ptr);
661int BIO_get_host_ip(const char *str, unsigned char *ip);
662int BIO_get_accept_socket(char *host_port,int mode);
663int BIO_accept(int sock,char **ip_port);
664int BIO_sock_init(void );
665void BIO_sock_cleanup(void);
666int BIO_set_tcp_ndelay(int sock,int turn_on);
667
668BIO *BIO_new_socket(int sock, int close_flag);
669BIO *BIO_new_dgram(int fd, int close_flag);
670BIO *BIO_new_fd(int fd, int close_flag);
671BIO *BIO_new_connect(char *host_port);
672BIO *BIO_new_accept(char *host_port);
673
674int BIO_new_bio_pair(BIO **bio1, size_t writebuf1,
675 BIO **bio2, size_t writebuf2);
676/* If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints.
677 * Otherwise returns 0 and sets *bio1 and *bio2 to NULL.
678 * Size 0 uses default value.
679 */
680
681void BIO_copy_next_retry(BIO *b);
682
683/*long BIO_ghbn_ctrl(int cmd,int iarg,char *parg);*/
684
685#ifdef __GNUC__
686# define __bio_h__attr__ __attribute__
687#else
688# define __bio_h__attr__(x)
689#endif
690int BIO_printf(BIO *bio, const char *format, ...)
691 __bio_h__attr__((__format__(__printf__,2,3)));
692int BIO_vprintf(BIO *bio, const char *format, va_list args)
693 __bio_h__attr__((__format__(__printf__,2,0)));
694int BIO_snprintf(char *buf, size_t n, const char *format, ...)
695 __bio_h__attr__((__format__(__printf__,3,4)));
696int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args)
697 __bio_h__attr__((__format__(__printf__,3,0)));
698#undef __bio_h__attr__
699
700/* BEGIN ERROR CODES */
701/* The following lines are auto generated by the script mkerr.pl. Any changes
702 * made after this point may be overwritten when the script is next run.
703 */
704void ERR_load_BIO_strings(void);
705
706/* Error codes for the BIO functions. */
707
708/* Function codes. */
709#define BIO_F_ACPT_STATE 100
710#define BIO_F_BIO_ACCEPT 101
711#define BIO_F_BIO_BER_GET_HEADER 102
712#define BIO_F_BIO_CALLBACK_CTRL 131
713#define BIO_F_BIO_CTRL 103
714#define BIO_F_BIO_GETHOSTBYNAME 120
715#define BIO_F_BIO_GETS 104
716#define BIO_F_BIO_GET_ACCEPT_SOCKET 105
717#define BIO_F_BIO_GET_HOST_IP 106
718#define BIO_F_BIO_GET_PORT 107
719#define BIO_F_BIO_MAKE_PAIR 121
720#define BIO_F_BIO_NEW 108
721#define BIO_F_BIO_NEW_FILE 109
722#define BIO_F_BIO_NEW_MEM_BUF 126
723#define BIO_F_BIO_NREAD 123
724#define BIO_F_BIO_NREAD0 124
725#define BIO_F_BIO_NWRITE 125
726#define BIO_F_BIO_NWRITE0 122
727#define BIO_F_BIO_PUTS 110
728#define BIO_F_BIO_READ 111
729#define BIO_F_BIO_SOCK_INIT 112
730#define BIO_F_BIO_WRITE 113
731#define BIO_F_BUFFER_CTRL 114
732#define BIO_F_CONN_CTRL 127
733#define BIO_F_CONN_STATE 115
734#define BIO_F_FILE_CTRL 116
735#define BIO_F_FILE_READ 130
736#define BIO_F_LINEBUFFER_CTRL 129
737#define BIO_F_MEM_READ 128
738#define BIO_F_MEM_WRITE 117
739#define BIO_F_SSL_NEW 118
740#define BIO_F_WSASTARTUP 119
741
742/* Reason codes. */
743#define BIO_R_ACCEPT_ERROR 100
744#define BIO_R_BAD_FOPEN_MODE 101
745#define BIO_R_BAD_HOSTNAME_LOOKUP 102
746#define BIO_R_BROKEN_PIPE 124
747#define BIO_R_CONNECT_ERROR 103
748#define BIO_R_EOF_ON_MEMORY_BIO 127
749#define BIO_R_ERROR_SETTING_NBIO 104
750#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET 105
751#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET 106
752#define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET 107
753#define BIO_R_INVALID_ARGUMENT 125
754#define BIO_R_INVALID_IP_ADDRESS 108
755#define BIO_R_IN_USE 123
756#define BIO_R_KEEPALIVE 109
757#define BIO_R_NBIO_CONNECT_ERROR 110
758#define BIO_R_NO_ACCEPT_PORT_SPECIFIED 111
759#define BIO_R_NO_HOSTNAME_SPECIFIED 112
760#define BIO_R_NO_PORT_DEFINED 113
761#define BIO_R_NO_PORT_SPECIFIED 114
762#define BIO_R_NO_SUCH_FILE 128
763#define BIO_R_NULL_PARAMETER 115
764#define BIO_R_TAG_MISMATCH 116
765#define BIO_R_UNABLE_TO_BIND_SOCKET 117
766#define BIO_R_UNABLE_TO_CREATE_SOCKET 118
767#define BIO_R_UNABLE_TO_LISTEN_SOCKET 119
768#define BIO_R_UNINITIALIZED 120
769#define BIO_R_UNSUPPORTED_METHOD 121
770#define BIO_R_WRITE_TO_READ_ONLY_BIO 126
771#define BIO_R_WSASTARTUP 122
772
773#ifdef __cplusplus
774}
775#endif
776#endif
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-11-02 09:49:52 +0000