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source: trunk/sys/libcrypto/include/openssl/bio.h @ 198

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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 "crypto.h"
70
71	#ifdef __cplusplus
72	extern "C" {
73	#endif
74
75	/* These are the 'types' of BIOs */
76	#define BIO_TYPE_NONE 0
77	#define BIO_TYPE_MEM (1\|0x0400)
78	#define BIO_TYPE_FILE (2\|0x0400)
79
80	#define BIO_TYPE_FD (4\|0x0400\|0x0100)
81	#define BIO_TYPE_SOCKET (5\|0x0400\|0x0100)
82	#define BIO_TYPE_NULL (6\|0x0400)
83	#define BIO_TYPE_SSL (7\|0x0200)
84	#define BIO_TYPE_MD (8\|0x0200) /* passive filter */
85	#define BIO_TYPE_BUFFER (9\|0x0200) /* filter */
86	#define BIO_TYPE_CIPHER (10\|0x0200) /* filter */
87	#define BIO_TYPE_BASE64 (11\|0x0200) /* filter */
88	#define BIO_TYPE_CONNECT (12\|0x0400\|0x0100) /* socket - connect */
89	#define BIO_TYPE_ACCEPT (13\|0x0400\|0x0100) /* socket for accept */
90	#define BIO_TYPE_PROXY_CLIENT (14\|0x0200) /* client proxy BIO */
91	#define BIO_TYPE_PROXY_SERVER (15\|0x0200) /* server proxy BIO */
92	#define BIO_TYPE_NBIO_TEST (16\|0x0200) /* server proxy BIO */
93	#define BIO_TYPE_NULL_FILTER (17\|0x0200)
94	#define BIO_TYPE_BER (18\|0x0200) /* BER -> bin filter */
95	#define BIO_TYPE_BIO (19\|0x0400) /* (half a) BIO pair */
96	#define BIO_TYPE_LINEBUFFER (20\|0x0200) /* filter */
97	#define BIO_TYPE_DGRAM (21\|0x0400\|0x0100)
98	#define BIO_TYPE_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
200	typedef struct bio_st BIO;
201
202	void BIO_set_flags(BIO *b, int flags);
203	int BIO_test_flags(const BIO *b, int flags);
204	void 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
254	long (BIO_get_callback(const BIO b)) (struct bio_st ,int,const char ,int, long,long);
255	void BIO_set_callback(BIO *b,
256	long (callback)(struct bio_st ,int,const char *,int, long,long));
257	char BIO_get_callback_arg(const BIO b);
258	void BIO_set_callback_arg(BIO b, char arg);
259
260	const char * BIO_method_name(const BIO *b);
261	int BIO_method_type(const BIO *b);
262
263	typedef void bio_info_cb(struct bio_st , int, const char , int, long, long);
264
265	#ifndef OPENSSL_SYS_WIN16
266	typedef 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
280	typedef 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
295	struct 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
317	DECLARE_STACK_OF(BIO)
318
319	typedef 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	*/
460	int 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 */
512	size_t BIO_ctrl_pending(BIO *b);
513	size_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)
531	size_t BIO_ctrl_get_write_guarantee(BIO *b);
532	size_t BIO_ctrl_get_read_request(BIO *b);
533	int 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)()); */
550	int BIO_set_ex_data(BIO bio,int idx,void data);
551	void BIO_get_ex_data(BIO bio,int idx);
552	int 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);
554	unsigned long BIO_number_read(BIO *bio);
555	unsigned long BIO_number_written(BIO *bio);
556
557	# ifndef OPENSSL_NO_FP_API
558	# if defined(OPENSSL_SYS_WIN16) && defined(_WINDLL)
559	BIO_METHOD *BIO_s_file_internal(void);
560	BIO BIO_new_file_internal(char filename, char *mode);
561	BIO 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 */
566	BIO_METHOD *BIO_s_file(void );
567	BIO BIO_new_file(const char filename, const char *mode);
568	BIO 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
574	BIO * BIO_new(BIO_METHOD *type);
575	int BIO_set(BIO a,BIO_METHOD type);
576	int BIO_free(BIO *a);
577	void BIO_vfree(BIO *a);
578	int BIO_read(BIO b, void data, int len);
579	int BIO_gets(BIO bp,char buf, int size);
580	int BIO_write(BIO b, const void data, int len);
581	int BIO_puts(BIO bp,const char buf);
582	int BIO_indent(BIO *b,int indent,int max);
583	long BIO_ctrl(BIO bp,int cmd,long larg,void parg);
584	long BIO_callback_ctrl(BIO b, int cmd, void (fp)(struct bio_st , int, const char , int, long, long));
585	char * BIO_ptr_ctrl(BIO *bp,int cmd,long larg);
586	long BIO_int_ctrl(BIO *bp,int cmd,long larg,int iarg);
587	BIO * BIO_push(BIO b,BIO append);
588	BIO * BIO_pop(BIO *b);
589	void BIO_free_all(BIO *a);
590	BIO * BIO_find_type(BIO *b,int bio_type);
591	BIO * BIO_next(BIO *b);
592	BIO * BIO_get_retry_BIO(BIO bio, int reason);
593	int BIO_get_retry_reason(BIO *bio);
594	BIO * BIO_dup_chain(BIO *in);
595
596	int BIO_nread0(BIO bio, char *buf);
597	int BIO_nread(BIO bio, char *buf, int num);
598	int BIO_nwrite0(BIO bio, char *buf);
599	int BIO_nwrite(BIO bio, char *buf, int num);
600
601	#ifndef OPENSSL_SYS_WIN16
602	long BIO_debug_callback(BIO bio,int cmd,const char argp,int argi,
603	long argl,long ret);
604	#else
605	long _far _loadds BIO_debug_callback(BIO bio,int cmd,const char argp,int argi,
606	long argl,long ret);
607	#endif
608
609	BIO_METHOD *BIO_s_mem(void);
610	BIO BIO_new_mem_buf(void buf, int len);
611	BIO_METHOD *BIO_s_socket(void);
612	BIO_METHOD *BIO_s_connect(void);
613	BIO_METHOD *BIO_s_accept(void);
614	BIO_METHOD *BIO_s_fd(void);
615	#ifndef OPENSSL_SYS_OS2
616	BIO_METHOD *BIO_s_log(void);
617	#endif
618	BIO_METHOD *BIO_s_bio(void);
619	BIO_METHOD *BIO_s_null(void);
620	BIO_METHOD *BIO_f_null(void);
621	BIO_METHOD *BIO_f_buffer(void);
622	#ifdef OPENSSL_SYS_VMS
623	BIO_METHOD *BIO_f_linebuffer(void);
624	#endif
625	BIO_METHOD *BIO_f_nbio_test(void);
626	#ifndef OPENSSL_NO_DGRAM
627	BIO_METHOD *BIO_s_datagram(void);
628	#endif
629
630	/* BIO_METHOD BIO_f_ber(void); /
631
632	int BIO_sock_should_retry(int i);
633	int BIO_sock_non_fatal_error(int error);
634	int BIO_dgram_non_fatal_error(int error);
635
636	int BIO_fd_should_retry(int i);
637	int BIO_fd_non_fatal_error(int error);
638	int BIO_dump_cb(int (cb)(const void data, size_t len, void *u),
639	void u, const char s, int len);
640	int BIO_dump_indent_cb(int (cb)(const void data, size_t len, void *u),
641	void u, const char s, int len, int indent);
642	int BIO_dump(BIO b,const char bytes,int len);
643	int BIO_dump_indent(BIO b,const char bytes,int len,int indent);
644	#ifndef OPENSSL_NO_FP_API
645	int BIO_dump_fp(FILE fp, const char s, int len);
646	int BIO_dump_indent_fp(FILE fp, const char s, int len, int indent);
647	#endif
648	struct 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	*/
657	int BIO_sock_error(int sock);
658	int BIO_socket_ioctl(int fd, long type, void *arg);
659	int BIO_socket_nbio(int fd,int mode);
660	int BIO_get_port(const char str, unsigned short port_ptr);
661	int BIO_get_host_ip(const char str, unsigned char ip);
662	int BIO_get_accept_socket(char *host_port,int mode);
663	int BIO_accept(int sock,char **ip_port);
664	int BIO_sock_init(void );
665	void BIO_sock_cleanup(void);
666	int BIO_set_tcp_ndelay(int sock,int turn_on);
667
668	BIO *BIO_new_socket(int sock, int close_flag);
669	BIO *BIO_new_dgram(int fd, int close_flag);
670	BIO *BIO_new_fd(int fd, int close_flag);
671	BIO BIO_new_connect(char host_port);
672	BIO BIO_new_accept(char host_port);
673
674	int 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
681	void 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
690	int BIO_printf(BIO bio, const char format, ...)
691	__bio_h__attr__((__format__(__printf__,2,3)));
692	int BIO_vprintf(BIO bio, const char format, va_list args)
693	__bio_h__attr__((__format__(__printf__,2,0)));
694	int BIO_snprintf(char buf, size_t n, const char format, ...)
695	__bio_h__attr__((__format__(__printf__,3,4)));
696	int 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	*/
704	void 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

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