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authorcvs2svn <admin@example.com>2014-02-27 21:04:58 +0000
committercvs2svn <admin@example.com>2014-02-27 21:04:58 +0000
commit726818f36b5221c023cd04c4b90bdbc08e94cd96 (patch)
treecf8221f3aa5bf5a578ddf1ecf5677ad08c04d342 /src/lib/libcrypto/bio/bio.h
parent3b6d92e82b1421b811bcdec7f7fdfb31eeef18de (diff)
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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#ifndef OPENSSL_NO_SCTP
72# ifndef OPENSSL_SYS_VMS
73# include <stdint.h>
74# else
75# include <inttypes.h>
76# endif
77#endif
78
79#ifdef __cplusplus
80extern "C" {
81#endif
82
83/* These are the 'types' of BIOs */
84#define BIO_TYPE_NONE 0
85#define BIO_TYPE_MEM (1|0x0400)
86#define BIO_TYPE_FILE (2|0x0400)
87
88#define BIO_TYPE_FD (4|0x0400|0x0100)
89#define BIO_TYPE_SOCKET (5|0x0400|0x0100)
90#define BIO_TYPE_NULL (6|0x0400)
91#define BIO_TYPE_SSL (7|0x0200)
92#define BIO_TYPE_MD (8|0x0200) /* passive filter */
93#define BIO_TYPE_BUFFER (9|0x0200) /* filter */
94#define BIO_TYPE_CIPHER (10|0x0200) /* filter */
95#define BIO_TYPE_BASE64 (11|0x0200) /* filter */
96#define BIO_TYPE_CONNECT (12|0x0400|0x0100) /* socket - connect */
97#define BIO_TYPE_ACCEPT (13|0x0400|0x0100) /* socket for accept */
98#define BIO_TYPE_PROXY_CLIENT (14|0x0200) /* client proxy BIO */
99#define BIO_TYPE_PROXY_SERVER (15|0x0200) /* server proxy BIO */
100#define BIO_TYPE_NBIO_TEST (16|0x0200) /* server proxy BIO */
101#define BIO_TYPE_NULL_FILTER (17|0x0200)
102#define BIO_TYPE_BER (18|0x0200) /* BER -> bin filter */
103#define BIO_TYPE_BIO (19|0x0400) /* (half a) BIO pair */
104#define BIO_TYPE_LINEBUFFER (20|0x0200) /* filter */
105#define BIO_TYPE_DGRAM (21|0x0400|0x0100)
106#ifndef OPENSSL_NO_SCTP
107#define BIO_TYPE_DGRAM_SCTP (24|0x0400|0x0100)
108#endif
109#define BIO_TYPE_ASN1 (22|0x0200) /* filter */
110#define BIO_TYPE_COMP (23|0x0200) /* filter */
111
112#define BIO_TYPE_DESCRIPTOR 0x0100 /* socket, fd, connect or accept */
113#define BIO_TYPE_FILTER 0x0200
114#define BIO_TYPE_SOURCE_SINK 0x0400
115
116/* BIO_FILENAME_READ|BIO_CLOSE to open or close on free.
117 * BIO_set_fp(in,stdin,BIO_NOCLOSE); */
118#define BIO_NOCLOSE 0x00
119#define BIO_CLOSE 0x01
120
121/* These are used in the following macros and are passed to
122 * BIO_ctrl() */
123#define BIO_CTRL_RESET 1 /* opt - rewind/zero etc */
124#define BIO_CTRL_EOF 2 /* opt - are we at the eof */
125#define BIO_CTRL_INFO 3 /* opt - extra tit-bits */
126#define BIO_CTRL_SET 4 /* man - set the 'IO' type */
127#define BIO_CTRL_GET 5 /* man - get the 'IO' type */
128#define BIO_CTRL_PUSH 6 /* opt - internal, used to signify change */
129#define BIO_CTRL_POP 7 /* opt - internal, used to signify change */
130#define BIO_CTRL_GET_CLOSE 8 /* man - set the 'close' on free */
131#define BIO_CTRL_SET_CLOSE 9 /* man - set the 'close' on free */
132#define BIO_CTRL_PENDING 10 /* opt - is their more data buffered */
133#define BIO_CTRL_FLUSH 11 /* opt - 'flush' buffered output */
134#define BIO_CTRL_DUP 12 /* man - extra stuff for 'duped' BIO */
135#define BIO_CTRL_WPENDING 13 /* opt - number of bytes still to write */
136/* callback is int cb(BIO *bio,state,ret); */
137#define BIO_CTRL_SET_CALLBACK 14 /* opt - set callback function */
138#define BIO_CTRL_GET_CALLBACK 15 /* opt - set callback function */
139
140#define BIO_CTRL_SET_FILENAME 30 /* BIO_s_file special */
141
142/* dgram BIO stuff */
143#define BIO_CTRL_DGRAM_CONNECT 31 /* BIO dgram special */
144#define BIO_CTRL_DGRAM_SET_CONNECTED 32 /* allow for an externally
145 * connected socket to be
146 * passed in */
147#define BIO_CTRL_DGRAM_SET_RECV_TIMEOUT 33 /* setsockopt, essentially */
148#define BIO_CTRL_DGRAM_GET_RECV_TIMEOUT 34 /* getsockopt, essentially */
149#define BIO_CTRL_DGRAM_SET_SEND_TIMEOUT 35 /* setsockopt, essentially */
150#define BIO_CTRL_DGRAM_GET_SEND_TIMEOUT 36 /* getsockopt, essentially */
151
152#define BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP 37 /* flag whether the last */
153#define BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP 38 /* I/O operation tiemd out */
154
155/* #ifdef IP_MTU_DISCOVER */
156#define BIO_CTRL_DGRAM_MTU_DISCOVER 39 /* set DF bit on egress packets */
157/* #endif */
158
159#define BIO_CTRL_DGRAM_QUERY_MTU 40 /* as kernel for current MTU */
160#define BIO_CTRL_DGRAM_GET_FALLBACK_MTU 47
161#define BIO_CTRL_DGRAM_GET_MTU 41 /* get cached value for MTU */
162#define BIO_CTRL_DGRAM_SET_MTU 42 /* set cached value for
163 * MTU. want to use this
164 * if asking the kernel
165 * fails */
166
167#define BIO_CTRL_DGRAM_MTU_EXCEEDED 43 /* check whether the MTU
168 * was exceed in the
169 * previous write
170 * operation */
171
172#define BIO_CTRL_DGRAM_GET_PEER 46
173#define BIO_CTRL_DGRAM_SET_PEER 44 /* Destination for the data */
174
175#define BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT 45 /* Next DTLS handshake timeout to
176 * adjust socket timeouts */
177
178#ifndef OPENSSL_NO_SCTP
179/* SCTP stuff */
180#define BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE 50
181#define BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY 51
182#define BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY 52
183#define BIO_CTRL_DGRAM_SCTP_AUTH_CCS_RCVD 53
184#define BIO_CTRL_DGRAM_SCTP_GET_SNDINFO 60
185#define BIO_CTRL_DGRAM_SCTP_SET_SNDINFO 61
186#define BIO_CTRL_DGRAM_SCTP_GET_RCVINFO 62
187#define BIO_CTRL_DGRAM_SCTP_SET_RCVINFO 63
188#define BIO_CTRL_DGRAM_SCTP_GET_PRINFO 64
189#define BIO_CTRL_DGRAM_SCTP_SET_PRINFO 65
190#define BIO_CTRL_DGRAM_SCTP_SAVE_SHUTDOWN 70
191#endif
192
193/* modifiers */
194#define BIO_FP_READ 0x02
195#define BIO_FP_WRITE 0x04
196#define BIO_FP_APPEND 0x08
197#define BIO_FP_TEXT 0x10
198
199#define BIO_FLAGS_READ 0x01
200#define BIO_FLAGS_WRITE 0x02
201#define BIO_FLAGS_IO_SPECIAL 0x04
202#define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL)
203#define BIO_FLAGS_SHOULD_RETRY 0x08
204#ifndef BIO_FLAGS_UPLINK
205/* "UPLINK" flag denotes file descriptors provided by application.
206 It defaults to 0, as most platforms don't require UPLINK interface. */
207#define BIO_FLAGS_UPLINK 0
208#endif
209
210/* Used in BIO_gethostbyname() */
211#define BIO_GHBN_CTRL_HITS 1
212#define BIO_GHBN_CTRL_MISSES 2
213#define BIO_GHBN_CTRL_CACHE_SIZE 3
214#define BIO_GHBN_CTRL_GET_ENTRY 4
215#define BIO_GHBN_CTRL_FLUSH 5
216
217/* Mostly used in the SSL BIO */
218/* Not used anymore
219 * #define BIO_FLAGS_PROTOCOL_DELAYED_READ 0x10
220 * #define BIO_FLAGS_PROTOCOL_DELAYED_WRITE 0x20
221 * #define BIO_FLAGS_PROTOCOL_STARTUP 0x40
222 */
223
224#define BIO_FLAGS_BASE64_NO_NL 0x100
225
226/* This is used with memory BIOs: it means we shouldn't free up or change the
227 * data in any way.
228 */
229#define BIO_FLAGS_MEM_RDONLY 0x200
230
231typedef struct bio_st BIO;
232
233void BIO_set_flags(BIO *b, int flags);
234int BIO_test_flags(const BIO *b, int flags);
235void BIO_clear_flags(BIO *b, int flags);
236
237#define BIO_get_flags(b) BIO_test_flags(b, ~(0x0))
238#define BIO_set_retry_special(b) \
239 BIO_set_flags(b, (BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY))
240#define BIO_set_retry_read(b) \
241 BIO_set_flags(b, (BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY))
242#define BIO_set_retry_write(b) \
243 BIO_set_flags(b, (BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY))
244
245/* These are normally used internally in BIOs */
246#define BIO_clear_retry_flags(b) \
247 BIO_clear_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
248#define BIO_get_retry_flags(b) \
249 BIO_test_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
250
251/* These should be used by the application to tell why we should retry */
252#define BIO_should_read(a) BIO_test_flags(a, BIO_FLAGS_READ)
253#define BIO_should_write(a) BIO_test_flags(a, BIO_FLAGS_WRITE)
254#define BIO_should_io_special(a) BIO_test_flags(a, BIO_FLAGS_IO_SPECIAL)
255#define BIO_retry_type(a) BIO_test_flags(a, BIO_FLAGS_RWS)
256#define BIO_should_retry(a) BIO_test_flags(a, BIO_FLAGS_SHOULD_RETRY)
257
258/* The next three are used in conjunction with the
259 * BIO_should_io_special() condition. After this returns true,
260 * BIO *BIO_get_retry_BIO(BIO *bio, int *reason); will walk the BIO
261 * stack and return the 'reason' for the special and the offending BIO.
262 * Given a BIO, BIO_get_retry_reason(bio) will return the code. */
263/* Returned from the SSL bio when the certificate retrieval code had an error */
264#define BIO_RR_SSL_X509_LOOKUP 0x01
265/* Returned from the connect BIO when a connect would have blocked */
266#define BIO_RR_CONNECT 0x02
267/* Returned from the accept BIO when an accept would have blocked */
268#define BIO_RR_ACCEPT 0x03
269
270/* These are passed by the BIO callback */
271#define BIO_CB_FREE 0x01
272#define BIO_CB_READ 0x02
273#define BIO_CB_WRITE 0x03
274#define BIO_CB_PUTS 0x04
275#define BIO_CB_GETS 0x05
276#define BIO_CB_CTRL 0x06
277
278/* The callback is called before and after the underling operation,
279 * The BIO_CB_RETURN flag indicates if it is after the call */
280#define BIO_CB_RETURN 0x80
281#define BIO_CB_return(a) ((a)|BIO_CB_RETURN))
282#define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN))
283#define BIO_cb_post(a) ((a)&BIO_CB_RETURN)
284
285long (*BIO_get_callback(const BIO *b)) (struct bio_st *,int,const char *,int, long,long);
286void BIO_set_callback(BIO *b,
287 long (*callback)(struct bio_st *,int,const char *,int, long,long));
288char *BIO_get_callback_arg(const BIO *b);
289void BIO_set_callback_arg(BIO *b, char *arg);
290
291const char * BIO_method_name(const BIO *b);
292int BIO_method_type(const BIO *b);
293
294typedef void bio_info_cb(struct bio_st *, int, const char *, int, long, long);
295
296typedef struct bio_method_st
297 {
298 int type;
299 const char *name;
300 int (*bwrite)(BIO *, const char *, int);
301 int (*bread)(BIO *, char *, int);
302 int (*bputs)(BIO *, const char *);
303 int (*bgets)(BIO *, char *, int);
304 long (*ctrl)(BIO *, int, long, void *);
305 int (*create)(BIO *);
306 int (*destroy)(BIO *);
307 long (*callback_ctrl)(BIO *, int, bio_info_cb *);
308 } BIO_METHOD;
309
310struct bio_st
311 {
312 BIO_METHOD *method;
313 /* bio, mode, argp, argi, argl, ret */
314 long (*callback)(struct bio_st *,int,const char *,int, long,long);
315 char *cb_arg; /* first argument for the callback */
316
317 int init;
318 int shutdown;
319 int flags; /* extra storage */
320 int retry_reason;
321 int num;
322 void *ptr;
323 struct bio_st *next_bio; /* used by filter BIOs */
324 struct bio_st *prev_bio; /* used by filter BIOs */
325 int references;
326 unsigned long num_read;
327 unsigned long num_write;
328
329 CRYPTO_EX_DATA ex_data;
330 };
331
332DECLARE_STACK_OF(BIO)
333
334typedef struct bio_f_buffer_ctx_struct
335 {
336 /* Buffers are setup like this:
337 *
338 * <---------------------- size ----------------------->
339 * +---------------------------------------------------+
340 * | consumed | remaining | free space |
341 * +---------------------------------------------------+
342 * <-- off --><------- len ------->
343 */
344
345 /* BIO *bio; */ /* this is now in the BIO struct */
346 int ibuf_size; /* how big is the input buffer */
347 int obuf_size; /* how big is the output buffer */
348
349 char *ibuf; /* the char array */
350 int ibuf_len; /* how many bytes are in it */
351 int ibuf_off; /* write/read offset */
352
353 char *obuf; /* the char array */
354 int obuf_len; /* how many bytes are in it */
355 int obuf_off; /* write/read offset */
356 } BIO_F_BUFFER_CTX;
357
358/* Prefix and suffix callback in ASN1 BIO */
359typedef int asn1_ps_func(BIO *b, unsigned char **pbuf, int *plen, void *parg);
360
361#ifndef OPENSSL_NO_SCTP
362/* SCTP parameter structs */
363struct bio_dgram_sctp_sndinfo
364 {
365 uint16_t snd_sid;
366 uint16_t snd_flags;
367 uint32_t snd_ppid;
368 uint32_t snd_context;
369 };
370
371struct bio_dgram_sctp_rcvinfo
372 {
373 uint16_t rcv_sid;
374 uint16_t rcv_ssn;
375 uint16_t rcv_flags;
376 uint32_t rcv_ppid;
377 uint32_t rcv_tsn;
378 uint32_t rcv_cumtsn;
379 uint32_t rcv_context;
380 };
381
382struct bio_dgram_sctp_prinfo
383 {
384 uint16_t pr_policy;
385 uint32_t pr_value;
386 };
387#endif
388
389/* connect BIO stuff */
390#define BIO_CONN_S_BEFORE 1
391#define BIO_CONN_S_GET_IP 2
392#define BIO_CONN_S_GET_PORT 3
393#define BIO_CONN_S_CREATE_SOCKET 4
394#define BIO_CONN_S_CONNECT 5
395#define BIO_CONN_S_OK 6
396#define BIO_CONN_S_BLOCKED_CONNECT 7
397#define BIO_CONN_S_NBIO 8
398/*#define BIO_CONN_get_param_hostname BIO_ctrl */
399
400#define BIO_C_SET_CONNECT 100
401#define BIO_C_DO_STATE_MACHINE 101
402#define BIO_C_SET_NBIO 102
403#define BIO_C_SET_PROXY_PARAM 103
404#define BIO_C_SET_FD 104
405#define BIO_C_GET_FD 105
406#define BIO_C_SET_FILE_PTR 106
407#define BIO_C_GET_FILE_PTR 107
408#define BIO_C_SET_FILENAME 108
409#define BIO_C_SET_SSL 109
410#define BIO_C_GET_SSL 110
411#define BIO_C_SET_MD 111
412#define BIO_C_GET_MD 112
413#define BIO_C_GET_CIPHER_STATUS 113
414#define BIO_C_SET_BUF_MEM 114
415#define BIO_C_GET_BUF_MEM_PTR 115
416#define BIO_C_GET_BUFF_NUM_LINES 116
417#define BIO_C_SET_BUFF_SIZE 117
418#define BIO_C_SET_ACCEPT 118
419#define BIO_C_SSL_MODE 119
420#define BIO_C_GET_MD_CTX 120
421#define BIO_C_GET_PROXY_PARAM 121
422#define BIO_C_SET_BUFF_READ_DATA 122 /* data to read first */
423#define BIO_C_GET_CONNECT 123
424#define BIO_C_GET_ACCEPT 124
425#define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125
426#define BIO_C_GET_SSL_NUM_RENEGOTIATES 126
427#define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127
428#define BIO_C_FILE_SEEK 128
429#define BIO_C_GET_CIPHER_CTX 129
430#define BIO_C_SET_BUF_MEM_EOF_RETURN 130/*return end of input value*/
431#define BIO_C_SET_BIND_MODE 131
432#define BIO_C_GET_BIND_MODE 132
433#define BIO_C_FILE_TELL 133
434#define BIO_C_GET_SOCKS 134
435#define BIO_C_SET_SOCKS 135
436
437#define BIO_C_SET_WRITE_BUF_SIZE 136/* for BIO_s_bio */
438#define BIO_C_GET_WRITE_BUF_SIZE 137
439#define BIO_C_MAKE_BIO_PAIR 138
440#define BIO_C_DESTROY_BIO_PAIR 139
441#define BIO_C_GET_WRITE_GUARANTEE 140
442#define BIO_C_GET_READ_REQUEST 141
443#define BIO_C_SHUTDOWN_WR 142
444#define BIO_C_NREAD0 143
445#define BIO_C_NREAD 144
446#define BIO_C_NWRITE0 145
447#define BIO_C_NWRITE 146
448#define BIO_C_RESET_READ_REQUEST 147
449#define BIO_C_SET_MD_CTX 148
450
451#define BIO_C_SET_PREFIX 149
452#define BIO_C_GET_PREFIX 150
453#define BIO_C_SET_SUFFIX 151
454#define BIO_C_GET_SUFFIX 152
455
456#define BIO_C_SET_EX_ARG 153
457#define BIO_C_GET_EX_ARG 154
458
459#define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,arg)
460#define BIO_get_app_data(s) BIO_get_ex_data(s,0)
461
462/* BIO_s_connect() and BIO_s_socks4a_connect() */
463#define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name)
464#define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port)
465#define BIO_set_conn_ip(b,ip) BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip)
466#define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port)
467#define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0)
468#define BIO_get_conn_port(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1)
469#define BIO_get_conn_ip(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,2)
470#define BIO_get_conn_int_port(b) BIO_int_ctrl(b,BIO_C_GET_CONNECT,3,0)
471
472
473#define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL)
474
475/* BIO_s_accept_socket() */
476#define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name)
477#define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0)
478/* #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */
479#define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?(void *)"a":NULL)
480#define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio)
481
482#define BIO_BIND_NORMAL 0
483#define BIO_BIND_REUSEADDR_IF_UNUSED 1
484#define BIO_BIND_REUSEADDR 2
485#define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL)
486#define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL)
487
488#define BIO_do_connect(b) BIO_do_handshake(b)
489#define BIO_do_accept(b) BIO_do_handshake(b)
490#define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL)
491
492/* BIO_s_proxy_client() */
493#define BIO_set_url(b,url) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url))
494#define BIO_set_proxies(b,p) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p))
495/* BIO_set_nbio(b,n) */
496#define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s))
497/* BIO *BIO_get_filter_bio(BIO *bio); */
498#define BIO_set_proxy_cb(b,cb) BIO_callback_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(void *(*cb)()))
499#define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk)
500#define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool)
501
502#define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp)
503#define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p))
504#define BIO_get_url(b,url) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url))
505#define BIO_get_no_connect_return(b) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL)
506
507#define BIO_set_fd(b,fd,c) BIO_int_ctrl(b,BIO_C_SET_FD,c,fd)
508#define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c)
509
510#define BIO_set_fp(b,fp,c) BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp)
511#define BIO_get_fp(b,fpp) BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp)
512
513#define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL)
514#define BIO_tell(b) (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL)
515
516/* name is cast to lose const, but might be better to route through a function
517 so we can do it safely */
518#ifdef CONST_STRICT
519/* If you are wondering why this isn't defined, its because CONST_STRICT is
520 * purely a compile-time kludge to allow const to be checked.
521 */
522int BIO_read_filename(BIO *b,const char *name);
523#else
524#define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
525 BIO_CLOSE|BIO_FP_READ,(char *)name)
526#endif
527#define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
528 BIO_CLOSE|BIO_FP_WRITE,name)
529#define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
530 BIO_CLOSE|BIO_FP_APPEND,name)
531#define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
532 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name)
533
534/* WARNING WARNING, this ups the reference count on the read bio of the
535 * SSL structure. This is because the ssl read BIO is now pointed to by
536 * the next_bio field in the bio. So when you free the BIO, make sure
537 * you are doing a BIO_free_all() to catch the underlying BIO. */
538#define BIO_set_ssl(b,ssl,c) BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl)
539#define BIO_get_ssl(b,sslp) BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp)
540#define BIO_set_ssl_mode(b,client) BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL)
541#define BIO_set_ssl_renegotiate_bytes(b,num) \
542 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL);
543#define BIO_get_num_renegotiates(b) \
544 BIO_ctrl(b,BIO_C_GET_SSL_NUM_RENEGOTIATES,0,NULL);
545#define BIO_set_ssl_renegotiate_timeout(b,seconds) \
546 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL);
547
548/* defined in evp.h */
549/* #define BIO_set_md(b,md) BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */
550
551#define BIO_get_mem_data(b,pp) BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp)
552#define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm)
553#define BIO_get_mem_ptr(b,pp) BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp)
554#define BIO_set_mem_eof_return(b,v) \
555 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL)
556
557/* For the BIO_f_buffer() type */
558#define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL)
559#define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL)
560#define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0)
561#define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1)
562#define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf)
563
564/* Don't use the next one unless you know what you are doing :-) */
565#define BIO_dup_state(b,ret) BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret))
566
567#define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL)
568#define BIO_eof(b) (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL)
569#define BIO_set_close(b,c) (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL)
570#define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL)
571#define BIO_pending(b) (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL)
572#define BIO_wpending(b) (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL)
573/* ...pending macros have inappropriate return type */
574size_t BIO_ctrl_pending(BIO *b);
575size_t BIO_ctrl_wpending(BIO *b);
576#define BIO_flush(b) (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL)
577#define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0, \
578 cbp)
579#define BIO_set_info_callback(b,cb) (int)BIO_callback_ctrl(b,BIO_CTRL_SET_CALLBACK,cb)
580
581/* For the BIO_f_buffer() type */
582#define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL)
583
584/* For BIO_s_bio() */
585#define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL)
586#define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL)
587#define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2)
588#define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL)
589#define BIO_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL)
590/* macros with inappropriate type -- but ...pending macros use int too: */
591#define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL)
592#define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL)
593size_t BIO_ctrl_get_write_guarantee(BIO *b);
594size_t BIO_ctrl_get_read_request(BIO *b);
595int BIO_ctrl_reset_read_request(BIO *b);
596
597/* ctrl macros for dgram */
598#define BIO_ctrl_dgram_connect(b,peer) \
599 (int)BIO_ctrl(b,BIO_CTRL_DGRAM_CONNECT,0, (char *)peer)
600#define BIO_ctrl_set_connected(b, state, peer) \
601 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_CONNECTED, state, (char *)peer)
602#define BIO_dgram_recv_timedout(b) \
603 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP, 0, NULL)
604#define BIO_dgram_send_timedout(b) \
605 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP, 0, NULL)
606#define BIO_dgram_get_peer(b,peer) \
607 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_PEER, 0, (char *)peer)
608#define BIO_dgram_set_peer(b,peer) \
609 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, (char *)peer)
610
611/* These two aren't currently implemented */
612/* int BIO_get_ex_num(BIO *bio); */
613/* void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)()); */
614int BIO_set_ex_data(BIO *bio,int idx,void *data);
615void *BIO_get_ex_data(BIO *bio,int idx);
616int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
617 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
618unsigned long BIO_number_read(BIO *bio);
619unsigned long BIO_number_written(BIO *bio);
620
621/* For BIO_f_asn1() */
622int BIO_asn1_set_prefix(BIO *b, asn1_ps_func *prefix,
623 asn1_ps_func *prefix_free);
624int BIO_asn1_get_prefix(BIO *b, asn1_ps_func **pprefix,
625 asn1_ps_func **pprefix_free);
626int BIO_asn1_set_suffix(BIO *b, asn1_ps_func *suffix,
627 asn1_ps_func *suffix_free);
628int BIO_asn1_get_suffix(BIO *b, asn1_ps_func **psuffix,
629 asn1_ps_func **psuffix_free);
630
631# ifndef OPENSSL_NO_FP_API
632BIO_METHOD *BIO_s_file(void );
633BIO *BIO_new_file(const char *filename, const char *mode);
634BIO *BIO_new_fp(FILE *stream, int close_flag);
635# define BIO_s_file_internal BIO_s_file
636# endif
637BIO * BIO_new(BIO_METHOD *type);
638int BIO_set(BIO *a,BIO_METHOD *type);
639int BIO_free(BIO *a);
640void BIO_vfree(BIO *a);
641int BIO_read(BIO *b, void *data, int len);
642int BIO_gets(BIO *bp,char *buf, int size);
643int BIO_write(BIO *b, const void *data, int len);
644int BIO_puts(BIO *bp,const char *buf);
645int BIO_indent(BIO *b,int indent,int max);
646long BIO_ctrl(BIO *bp,int cmd,long larg,void *parg);
647long BIO_callback_ctrl(BIO *b, int cmd, void (*fp)(struct bio_st *, int, const char *, int, long, long));
648char * BIO_ptr_ctrl(BIO *bp,int cmd,long larg);
649long BIO_int_ctrl(BIO *bp,int cmd,long larg,int iarg);
650BIO * BIO_push(BIO *b,BIO *append);
651BIO * BIO_pop(BIO *b);
652void BIO_free_all(BIO *a);
653BIO * BIO_find_type(BIO *b,int bio_type);
654BIO * BIO_next(BIO *b);
655BIO * BIO_get_retry_BIO(BIO *bio, int *reason);
656int BIO_get_retry_reason(BIO *bio);
657BIO * BIO_dup_chain(BIO *in);
658
659int BIO_nread0(BIO *bio, char **buf);
660int BIO_nread(BIO *bio, char **buf, int num);
661int BIO_nwrite0(BIO *bio, char **buf);
662int BIO_nwrite(BIO *bio, char **buf, int num);
663
664long BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi,
665 long argl,long ret);
666
667BIO_METHOD *BIO_s_mem(void);
668BIO *BIO_new_mem_buf(void *buf, int len);
669BIO_METHOD *BIO_s_socket(void);
670BIO_METHOD *BIO_s_connect(void);
671BIO_METHOD *BIO_s_accept(void);
672BIO_METHOD *BIO_s_fd(void);
673#ifndef OPENSSL_SYS_OS2
674BIO_METHOD *BIO_s_log(void);
675#endif
676BIO_METHOD *BIO_s_bio(void);
677BIO_METHOD *BIO_s_null(void);
678BIO_METHOD *BIO_f_null(void);
679BIO_METHOD *BIO_f_buffer(void);
680#ifdef OPENSSL_SYS_VMS
681BIO_METHOD *BIO_f_linebuffer(void);
682#endif
683BIO_METHOD *BIO_f_nbio_test(void);
684#ifndef OPENSSL_NO_DGRAM
685BIO_METHOD *BIO_s_datagram(void);
686#ifndef OPENSSL_NO_SCTP
687BIO_METHOD *BIO_s_datagram_sctp(void);
688#endif
689#endif
690
691/* BIO_METHOD *BIO_f_ber(void); */
692
693int BIO_sock_should_retry(int i);
694int BIO_sock_non_fatal_error(int error);
695int BIO_dgram_non_fatal_error(int error);
696
697int BIO_fd_should_retry(int i);
698int BIO_fd_non_fatal_error(int error);
699int BIO_dump_cb(int (*cb)(const void *data, size_t len, void *u),
700 void *u, const char *s, int len);
701int BIO_dump_indent_cb(int (*cb)(const void *data, size_t len, void *u),
702 void *u, const char *s, int len, int indent);
703int BIO_dump(BIO *b,const char *bytes,int len);
704int BIO_dump_indent(BIO *b,const char *bytes,int len,int indent);
705#ifndef OPENSSL_NO_FP_API
706int BIO_dump_fp(FILE *fp, const char *s, int len);
707int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent);
708#endif
709struct hostent *BIO_gethostbyname(const char *name);
710/* We might want a thread-safe interface too:
711 * struct hostent *BIO_gethostbyname_r(const char *name,
712 * struct hostent *result, void *buffer, size_t buflen);
713 * or something similar (caller allocates a struct hostent,
714 * pointed to by "result", and additional buffer space for the various
715 * substructures; if the buffer does not suffice, NULL is returned
716 * and an appropriate error code is set).
717 */
718int BIO_sock_error(int sock);
719int BIO_socket_ioctl(int fd, long type, void *arg);
720int BIO_socket_nbio(int fd,int mode);
721int BIO_get_port(const char *str, unsigned short *port_ptr);
722int BIO_get_host_ip(const char *str, unsigned char *ip);
723int BIO_get_accept_socket(char *host_port,int mode);
724int BIO_accept(int sock,char **ip_port);
725int BIO_sock_init(void );
726void BIO_sock_cleanup(void);
727int BIO_set_tcp_ndelay(int sock,int turn_on);
728
729BIO *BIO_new_socket(int sock, int close_flag);
730BIO *BIO_new_dgram(int fd, int close_flag);
731#ifndef OPENSSL_NO_SCTP
732BIO *BIO_new_dgram_sctp(int fd, int close_flag);
733int BIO_dgram_is_sctp(BIO *bio);
734int BIO_dgram_sctp_notification_cb(BIO *b,
735 void (*handle_notifications)(BIO *bio, void *context, void *buf),
736 void *context);
737int BIO_dgram_sctp_wait_for_dry(BIO *b);
738int BIO_dgram_sctp_msg_waiting(BIO *b);
739#endif
740BIO *BIO_new_fd(int fd, int close_flag);
741BIO *BIO_new_connect(char *host_port);
742BIO *BIO_new_accept(char *host_port);
743
744int BIO_new_bio_pair(BIO **bio1, size_t writebuf1,
745 BIO **bio2, size_t writebuf2);
746/* If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints.
747 * Otherwise returns 0 and sets *bio1 and *bio2 to NULL.
748 * Size 0 uses default value.
749 */
750
751void BIO_copy_next_retry(BIO *b);
752
753/*long BIO_ghbn_ctrl(int cmd,int iarg,char *parg);*/
754
755#ifdef __GNUC__
756# define __bio_h__attr__ __attribute__
757#else
758# define __bio_h__attr__(x)
759#endif
760int BIO_printf(BIO *bio, const char *format, ...)
761 __bio_h__attr__((__format__(__printf__,2,3)));
762int BIO_vprintf(BIO *bio, const char *format, va_list args)
763 __bio_h__attr__((__format__(__printf__,2,0)));
764int BIO_snprintf(char *buf, size_t n, const char *format, ...)
765 __bio_h__attr__((__format__(__printf__,3,4)));
766int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args)
767 __bio_h__attr__((__format__(__printf__,3,0)));
768#undef __bio_h__attr__
769
770/* BEGIN ERROR CODES */
771/* The following lines are auto generated by the script mkerr.pl. Any changes
772 * made after this point may be overwritten when the script is next run.
773 */
774void ERR_load_BIO_strings(void);
775
776/* Error codes for the BIO functions. */
777
778/* Function codes. */
779#define BIO_F_ACPT_STATE 100
780#define BIO_F_BIO_ACCEPT 101
781#define BIO_F_BIO_BER_GET_HEADER 102
782#define BIO_F_BIO_CALLBACK_CTRL 131
783#define BIO_F_BIO_CTRL 103
784#define BIO_F_BIO_GETHOSTBYNAME 120
785#define BIO_F_BIO_GETS 104
786#define BIO_F_BIO_GET_ACCEPT_SOCKET 105
787#define BIO_F_BIO_GET_HOST_IP 106
788#define BIO_F_BIO_GET_PORT 107
789#define BIO_F_BIO_MAKE_PAIR 121
790#define BIO_F_BIO_NEW 108
791#define BIO_F_BIO_NEW_FILE 109
792#define BIO_F_BIO_NEW_MEM_BUF 126
793#define BIO_F_BIO_NREAD 123
794#define BIO_F_BIO_NREAD0 124
795#define BIO_F_BIO_NWRITE 125
796#define BIO_F_BIO_NWRITE0 122
797#define BIO_F_BIO_PUTS 110
798#define BIO_F_BIO_READ 111
799#define BIO_F_BIO_SOCK_INIT 112
800#define BIO_F_BIO_WRITE 113
801#define BIO_F_BUFFER_CTRL 114
802#define BIO_F_CONN_CTRL 127
803#define BIO_F_CONN_STATE 115
804#define BIO_F_DGRAM_SCTP_READ 132
805#define BIO_F_FILE_CTRL 116
806#define BIO_F_FILE_READ 130
807#define BIO_F_LINEBUFFER_CTRL 129
808#define BIO_F_MEM_READ 128
809#define BIO_F_MEM_WRITE 117
810#define BIO_F_SSL_NEW 118
811#define BIO_F_WSASTARTUP 119
812
813/* Reason codes. */
814#define BIO_R_ACCEPT_ERROR 100
815#define BIO_R_BAD_FOPEN_MODE 101
816#define BIO_R_BAD_HOSTNAME_LOOKUP 102
817#define BIO_R_BROKEN_PIPE 124
818#define BIO_R_CONNECT_ERROR 103
819#define BIO_R_EOF_ON_MEMORY_BIO 127
820#define BIO_R_ERROR_SETTING_NBIO 104
821#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET 105
822#define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET 106
823#define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET 107
824#define BIO_R_INVALID_ARGUMENT 125
825#define BIO_R_INVALID_IP_ADDRESS 108
826#define BIO_R_IN_USE 123
827#define BIO_R_KEEPALIVE 109
828#define BIO_R_NBIO_CONNECT_ERROR 110
829#define BIO_R_NO_ACCEPT_PORT_SPECIFIED 111
830#define BIO_R_NO_HOSTNAME_SPECIFIED 112
831#define BIO_R_NO_PORT_DEFINED 113
832#define BIO_R_NO_PORT_SPECIFIED 114
833#define BIO_R_NO_SUCH_FILE 128
834#define BIO_R_NULL_PARAMETER 115
835#define BIO_R_TAG_MISMATCH 116
836#define BIO_R_UNABLE_TO_BIND_SOCKET 117
837#define BIO_R_UNABLE_TO_CREATE_SOCKET 118
838#define BIO_R_UNABLE_TO_LISTEN_SOCKET 119
839#define BIO_R_UNINITIALIZED 120
840#define BIO_R_UNSUPPORTED_METHOD 121
841#define BIO_R_WRITE_TO_READ_ONLY_BIO 126
842#define BIO_R_WSASTARTUP 122
843
844#ifdef __cplusplus
845}
846#endif
847#endif
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