2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
62 # include <openssl/e_os2.h>
64 # ifndef OPENSSL_NO_FP_API
69 # include <openssl/crypto.h>
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)
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 */
100 # define BIO_TYPE_DESCRIPTOR 0x0100/* socket, fd, connect or accept */
101 # define BIO_TYPE_FILTER 0x0200
102 # define BIO_TYPE_SOURCE_SINK 0x0400
105 * BIO_FILENAME_READ|BIO_CLOSE to open or close on free.
106 * BIO_set_fp(in,stdin,BIO_NOCLOSE);
108 # define BIO_NOCLOSE 0x00
109 # define BIO_CLOSE 0x01
112 * These are used in the following macros and are passed to BIO_ctrl()
114 # define BIO_CTRL_RESET 1/* opt - rewind/zero etc */
115 # define BIO_CTRL_EOF 2/* opt - are we at the eof */
116 # define BIO_CTRL_INFO 3/* opt - extra tit-bits */
117 # define BIO_CTRL_SET 4/* man - set the 'IO' type */
118 # define BIO_CTRL_GET 5/* man - get the 'IO' type */
119 # define BIO_CTRL_PUSH 6/* opt - internal, used to signify change */
120 # define BIO_CTRL_POP 7/* opt - internal, used to signify change */
121 # define BIO_CTRL_GET_CLOSE 8/* man - set the 'close' on free */
122 # define BIO_CTRL_SET_CLOSE 9/* man - set the 'close' on free */
123 # define BIO_CTRL_PENDING 10/* opt - is their more data buffered */
124 # define BIO_CTRL_FLUSH 11/* opt - 'flush' buffered output */
125 # define BIO_CTRL_DUP 12/* man - extra stuff for 'duped' BIO */
126 # define BIO_CTRL_WPENDING 13/* opt - number of bytes still to write */
127 /* callback is int cb(BIO *bio,state,ret); */
128 # define BIO_CTRL_SET_CALLBACK 14/* opt - set callback function */
129 # define BIO_CTRL_GET_CALLBACK 15/* opt - set callback function */
131 # define BIO_CTRL_SET_FILENAME 30/* BIO_s_file special */
133 /* dgram BIO stuff */
134 # define BIO_CTRL_DGRAM_CONNECT 31/* BIO dgram special */
135 # define BIO_CTRL_DGRAM_SET_CONNECTED 32/* allow for an externally connected
136 * socket to be passed in */
137 # define BIO_CTRL_DGRAM_SET_RECV_TIMEOUT 33/* setsockopt, essentially */
138 # define BIO_CTRL_DGRAM_GET_RECV_TIMEOUT 34/* getsockopt, essentially */
139 # define BIO_CTRL_DGRAM_SET_SEND_TIMEOUT 35/* setsockopt, essentially */
140 # define BIO_CTRL_DGRAM_GET_SEND_TIMEOUT 36/* getsockopt, essentially */
142 # define BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP 37/* flag whether the last */
143 # define BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP 38/* I/O operation tiemd out */
145 /* #ifdef IP_MTU_DISCOVER */
146 # define BIO_CTRL_DGRAM_MTU_DISCOVER 39/* set DF bit on egress packets */
149 # define BIO_CTRL_DGRAM_QUERY_MTU 40/* as kernel for current MTU */
150 # define BIO_CTRL_DGRAM_GET_FALLBACK_MTU 47
151 # define BIO_CTRL_DGRAM_GET_MTU 41/* get cached value for MTU */
152 # define BIO_CTRL_DGRAM_SET_MTU 42/* set cached value for MTU.
153 * want to use this if asking
154 * the kernel fails */
156 # define BIO_CTRL_DGRAM_MTU_EXCEEDED 43/* check whether the MTU was
157 * exceed in the previous write
160 # define BIO_CTRL_DGRAM_GET_PEER 46
161 # define BIO_CTRL_DGRAM_SET_PEER 44/* Destination for the data */
163 # define BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT 45/* Next DTLS handshake timeout
164 * to * adjust socket timeouts */
167 # define BIO_FP_READ 0x02
168 # define BIO_FP_WRITE 0x04
169 # define BIO_FP_APPEND 0x08
170 # define BIO_FP_TEXT 0x10
172 # define BIO_FLAGS_READ 0x01
173 # define BIO_FLAGS_WRITE 0x02
174 # define BIO_FLAGS_IO_SPECIAL 0x04
175 # define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL)
176 # define BIO_FLAGS_SHOULD_RETRY 0x08
177 # ifndef BIO_FLAGS_UPLINK
179 * "UPLINK" flag denotes file descriptors provided by application. It
180 * defaults to 0, as most platforms don't require UPLINK interface.
182 # define BIO_FLAGS_UPLINK 0
185 /* Used in BIO_gethostbyname() */
186 # define BIO_GHBN_CTRL_HITS 1
187 # define BIO_GHBN_CTRL_MISSES 2
188 # define BIO_GHBN_CTRL_CACHE_SIZE 3
189 # define BIO_GHBN_CTRL_GET_ENTRY 4
190 # define BIO_GHBN_CTRL_FLUSH 5
192 /* Mostly used in the SSL BIO */
195 * #define BIO_FLAGS_PROTOCOL_DELAYED_READ 0x10
196 * #define BIO_FLAGS_PROTOCOL_DELAYED_WRITE 0x20
197 * #define BIO_FLAGS_PROTOCOL_STARTUP 0x40
200 # define BIO_FLAGS_BASE64_NO_NL 0x100
203 * This is used with memory BIOs: it means we shouldn't free up or change the
206 # define BIO_FLAGS_MEM_RDONLY 0x200
208 typedef struct bio_st BIO;
210 void BIO_set_flags(BIO *b, int flags);
211 int BIO_test_flags(const BIO *b, int flags);
212 void BIO_clear_flags(BIO *b, int flags);
214 # define BIO_get_flags(b) BIO_test_flags(b, ~(0x0))
215 # define BIO_set_retry_special(b) \
216 BIO_set_flags(b, (BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY))
217 # define BIO_set_retry_read(b) \
218 BIO_set_flags(b, (BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY))
219 # define BIO_set_retry_write(b) \
220 BIO_set_flags(b, (BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY))
222 /* These are normally used internally in BIOs */
223 # define BIO_clear_retry_flags(b) \
224 BIO_clear_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
225 # define BIO_get_retry_flags(b) \
226 BIO_test_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
228 /* These should be used by the application to tell why we should retry */
229 # define BIO_should_read(a) BIO_test_flags(a, BIO_FLAGS_READ)
230 # define BIO_should_write(a) BIO_test_flags(a, BIO_FLAGS_WRITE)
231 # define BIO_should_io_special(a) BIO_test_flags(a, BIO_FLAGS_IO_SPECIAL)
232 # define BIO_retry_type(a) BIO_test_flags(a, BIO_FLAGS_RWS)
233 # define BIO_should_retry(a) BIO_test_flags(a, BIO_FLAGS_SHOULD_RETRY)
236 * The next three are used in conjunction with the BIO_should_io_special()
237 * condition. After this returns true, BIO *BIO_get_retry_BIO(BIO *bio, int
238 * *reason); will walk the BIO stack and return the 'reason' for the special
239 * and the offending BIO. Given a BIO, BIO_get_retry_reason(bio) will return
243 * Returned from the SSL bio when the certificate retrieval code had an error
245 # define BIO_RR_SSL_X509_LOOKUP 0x01
246 /* Returned from the connect BIO when a connect would have blocked */
247 # define BIO_RR_CONNECT 0x02
248 /* Returned from the accept BIO when an accept would have blocked */
249 # define BIO_RR_ACCEPT 0x03
251 /* These are passed by the BIO callback */
252 # define BIO_CB_FREE 0x01
253 # define BIO_CB_READ 0x02
254 # define BIO_CB_WRITE 0x03
255 # define BIO_CB_PUTS 0x04
256 # define BIO_CB_GETS 0x05
257 # define BIO_CB_CTRL 0x06
260 * The callback is called before and after the underling operation, The
261 * BIO_CB_RETURN flag indicates if it is after the call
263 # define BIO_CB_RETURN 0x80
264 # define BIO_CB_return(a) ((a)|BIO_CB_RETURN))
265 # define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN))
266 # define BIO_cb_post(a) ((a)&BIO_CB_RETURN)
268 long (*BIO_get_callback(const BIO *b)) (struct bio_st *, int, const char *,
270 void BIO_set_callback(BIO *b,
271 long (*callback) (struct bio_st *, int, const char *,
273 char *BIO_get_callback_arg(const BIO *b);
274 void BIO_set_callback_arg(BIO *b, char *arg);
276 const char *BIO_method_name(const BIO *b);
277 int BIO_method_type(const BIO *b);
279 typedef void bio_info_cb (struct bio_st *, int, const char *, int, long,
282 # ifndef OPENSSL_SYS_WIN16
283 typedef struct bio_method_st {
286 int (*bwrite) (BIO *, const char *, int);
287 int (*bread) (BIO *, char *, int);
288 int (*bputs) (BIO *, const char *);
289 int (*bgets) (BIO *, char *, int);
290 long (*ctrl) (BIO *, int, long, void *);
291 int (*create) (BIO *);
292 int (*destroy) (BIO *);
293 long (*callback_ctrl) (BIO *, int, bio_info_cb *);
296 typedef struct bio_method_st {
299 int (_far * bwrite) ();
300 int (_far * bread) ();
301 int (_far * bputs) ();
302 int (_far * bgets) ();
303 long (_far * ctrl) ();
304 int (_far * create) ();
305 int (_far * destroy) ();
306 long (_far * callback_ctrl) ();
312 /* bio, mode, argp, argi, argl, ret */
313 long (*callback) (struct bio_st *, int, const char *, int, long, long);
314 char *cb_arg; /* first argument for the callback */
317 int flags; /* extra storage */
321 struct bio_st *next_bio; /* used by filter BIOs */
322 struct bio_st *prev_bio; /* used by filter BIOs */
324 unsigned long num_read;
325 unsigned long num_write;
326 CRYPTO_EX_DATA ex_data;
329 DECLARE_STACK_OF(BIO)
331 typedef struct bio_f_buffer_ctx_struct {
333 * Buffers are setup like this:
335 * <---------------------- size ----------------------->
336 * +---------------------------------------------------+
337 * | consumed | remaining | free space |
338 * +---------------------------------------------------+
339 * <-- off --><------- len ------->
342 * this is now in the BIO struct
344 int ibuf_size; /* how big is the input buffer */
345 int obuf_size; /* how big is the output buffer */
346 char *ibuf; /* the char array */
347 int ibuf_len; /* how many bytes are in it */
348 int ibuf_off; /* write/read offset */
349 char *obuf; /* the char array */
350 int obuf_len; /* how many bytes are in it */
351 int obuf_off; /* write/read offset */
354 /* connect BIO stuff */
355 # define BIO_CONN_S_BEFORE 1
356 # define BIO_CONN_S_GET_IP 2
357 # define BIO_CONN_S_GET_PORT 3
358 # define BIO_CONN_S_CREATE_SOCKET 4
359 # define BIO_CONN_S_CONNECT 5
360 # define BIO_CONN_S_OK 6
361 # define BIO_CONN_S_BLOCKED_CONNECT 7
362 # define BIO_CONN_S_NBIO 8
364 * #define BIO_CONN_get_param_hostname BIO_ctrl
367 # define BIO_C_SET_CONNECT 100
368 # define BIO_C_DO_STATE_MACHINE 101
369 # define BIO_C_SET_NBIO 102
370 # define BIO_C_SET_PROXY_PARAM 103
371 # define BIO_C_SET_FD 104
372 # define BIO_C_GET_FD 105
373 # define BIO_C_SET_FILE_PTR 106
374 # define BIO_C_GET_FILE_PTR 107
375 # define BIO_C_SET_FILENAME 108
376 # define BIO_C_SET_SSL 109
377 # define BIO_C_GET_SSL 110
378 # define BIO_C_SET_MD 111
379 # define BIO_C_GET_MD 112
380 # define BIO_C_GET_CIPHER_STATUS 113
381 # define BIO_C_SET_BUF_MEM 114
382 # define BIO_C_GET_BUF_MEM_PTR 115
383 # define BIO_C_GET_BUFF_NUM_LINES 116
384 # define BIO_C_SET_BUFF_SIZE 117
385 # define BIO_C_SET_ACCEPT 118
386 # define BIO_C_SSL_MODE 119
387 # define BIO_C_GET_MD_CTX 120
388 # define BIO_C_GET_PROXY_PARAM 121
389 # define BIO_C_SET_BUFF_READ_DATA 122/* data to read first */
390 # define BIO_C_GET_CONNECT 123
391 # define BIO_C_GET_ACCEPT 124
392 # define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125
393 # define BIO_C_GET_SSL_NUM_RENEGOTIATES 126
394 # define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127
395 # define BIO_C_FILE_SEEK 128
396 # define BIO_C_GET_CIPHER_CTX 129
397 # define BIO_C_SET_BUF_MEM_EOF_RETURN 130/* return end of input
399 # define BIO_C_SET_BIND_MODE 131
400 # define BIO_C_GET_BIND_MODE 132
401 # define BIO_C_FILE_TELL 133
402 # define BIO_C_GET_SOCKS 134
403 # define BIO_C_SET_SOCKS 135
405 # define BIO_C_SET_WRITE_BUF_SIZE 136/* for BIO_s_bio */
406 # define BIO_C_GET_WRITE_BUF_SIZE 137
407 # define BIO_C_MAKE_BIO_PAIR 138
408 # define BIO_C_DESTROY_BIO_PAIR 139
409 # define BIO_C_GET_WRITE_GUARANTEE 140
410 # define BIO_C_GET_READ_REQUEST 141
411 # define BIO_C_SHUTDOWN_WR 142
412 # define BIO_C_NREAD0 143
413 # define BIO_C_NREAD 144
414 # define BIO_C_NWRITE0 145
415 # define BIO_C_NWRITE 146
416 # define BIO_C_RESET_READ_REQUEST 147
417 # define BIO_C_SET_MD_CTX 148
419 # define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,arg)
420 # define BIO_get_app_data(s) BIO_get_ex_data(s,0)
422 /* BIO_s_connect() and BIO_s_socks4a_connect() */
423 # define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name)
424 # define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port)
425 # define BIO_set_conn_ip(b,ip) BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip)
426 # define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port)
427 # define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0)
428 # define BIO_get_conn_port(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1)
429 # define BIO_get_conn_ip(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,2)
430 # define BIO_get_conn_int_port(b) BIO_int_ctrl(b,BIO_C_GET_CONNECT,3,0)
432 # define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL)
434 /* BIO_s_accept_socket() */
435 # define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name)
436 # define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0)
437 /* #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */
438 # define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?(void *)"a":NULL)
439 # define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio)
441 # define BIO_BIND_NORMAL 0
442 # define BIO_BIND_REUSEADDR_IF_UNUSED 1
443 # define BIO_BIND_REUSEADDR 2
444 # define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL)
445 # define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL)
447 # define BIO_do_connect(b) BIO_do_handshake(b)
448 # define BIO_do_accept(b) BIO_do_handshake(b)
449 # define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL)
451 /* BIO_s_proxy_client() */
452 # define BIO_set_url(b,url) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url))
453 # define BIO_set_proxies(b,p) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p))
454 /* BIO_set_nbio(b,n) */
455 # define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s))
456 /* BIO *BIO_get_filter_bio(BIO *bio); */
457 # define BIO_set_proxy_cb(b,cb) BIO_callback_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(void *(*cb)()))
458 # define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk)
459 # define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool)
461 # define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp)
462 # define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p))
463 # define BIO_get_url(b,url) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url))
464 # define BIO_get_no_connect_return(b) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL)
466 # define BIO_set_fd(b,fd,c) BIO_int_ctrl(b,BIO_C_SET_FD,c,fd)
467 # define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c)
469 # define BIO_set_fp(b,fp,c) BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp)
470 # define BIO_get_fp(b,fpp) BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp)
472 # define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL)
473 # define BIO_tell(b) (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL)
476 * name is cast to lose const, but might be better to route through a
477 * function so we can do it safely
481 * If you are wondering why this isn't defined, its because CONST_STRICT is
482 * purely a compile-time kludge to allow const to be checked.
484 int BIO_read_filename(BIO *b, const char *name);
486 # define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
487 BIO_CLOSE|BIO_FP_READ,(char *)name)
489 # define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
490 BIO_CLOSE|BIO_FP_WRITE,name)
491 # define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
492 BIO_CLOSE|BIO_FP_APPEND,name)
493 # define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
494 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name)
497 * WARNING WARNING, this ups the reference count on the read bio of the SSL
498 * structure. This is because the ssl read BIO is now pointed to by the
499 * next_bio field in the bio. So when you free the BIO, make sure you are
500 * doing a BIO_free_all() to catch the underlying BIO.
502 # define BIO_set_ssl(b,ssl,c) BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl)
503 # define BIO_get_ssl(b,sslp) BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp)
504 # define BIO_set_ssl_mode(b,client) BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL)
505 # define BIO_set_ssl_renegotiate_bytes(b,num) \
506 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL);
507 # define BIO_get_num_renegotiates(b) \
508 BIO_ctrl(b,BIO_C_GET_SSL_NUM_RENEGOTIATES,0,NULL);
509 # define BIO_set_ssl_renegotiate_timeout(b,seconds) \
510 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL);
512 /* defined in evp.h */
513 /* #define BIO_set_md(b,md) BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */
515 # define BIO_get_mem_data(b,pp) BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp)
516 # define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm)
517 # define BIO_get_mem_ptr(b,pp) BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp)
518 # define BIO_set_mem_eof_return(b,v) \
519 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL)
521 /* For the BIO_f_buffer() type */
522 # define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL)
523 # define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL)
524 # define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0)
525 # define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1)
526 # define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf)
528 /* Don't use the next one unless you know what you are doing :-) */
529 # define BIO_dup_state(b,ret) BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret))
531 # define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL)
532 # define BIO_eof(b) (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL)
533 # define BIO_set_close(b,c) (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL)
534 # define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL)
535 # define BIO_pending(b) (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL)
536 # define BIO_wpending(b) (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL)
537 /* ...pending macros have inappropriate return type */
538 size_t BIO_ctrl_pending(BIO *b);
539 size_t BIO_ctrl_wpending(BIO *b);
540 # define BIO_flush(b) (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL)
541 # define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0, \
543 # define BIO_set_info_callback(b,cb) (int)BIO_callback_ctrl(b,BIO_CTRL_SET_CALLBACK,cb)
545 /* For the BIO_f_buffer() type */
546 # define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL)
548 /* For BIO_s_bio() */
549 # define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL)
550 # define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL)
551 # define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2)
552 # define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL)
553 # define BIO_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL)
554 /* macros with inappropriate type -- but ...pending macros use int too: */
555 # define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL)
556 # define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL)
557 size_t BIO_ctrl_get_write_guarantee(BIO *b);
558 size_t BIO_ctrl_get_read_request(BIO *b);
559 int BIO_ctrl_reset_read_request(BIO *b);
561 /* ctrl macros for dgram */
562 # define BIO_ctrl_dgram_connect(b,peer) \
563 (int)BIO_ctrl(b,BIO_CTRL_DGRAM_CONNECT,0, (char *)peer)
564 # define BIO_ctrl_set_connected(b, state, peer) \
565 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_CONNECTED, state, (char *)peer)
566 # define BIO_dgram_recv_timedout(b) \
567 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP, 0, NULL)
568 # define BIO_dgram_send_timedout(b) \
569 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP, 0, NULL)
570 # define BIO_dgram_get_peer(b,peer) \
571 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_PEER, 0, (char *)peer)
572 # define BIO_dgram_set_peer(b,peer) \
573 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, (char *)peer)
575 /* These two aren't currently implemented */
576 /* int BIO_get_ex_num(BIO *bio); */
577 /* void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)()); */
578 int BIO_set_ex_data(BIO *bio, int idx, void *data);
579 void *BIO_get_ex_data(BIO *bio, int idx);
580 int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
581 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
582 unsigned long BIO_number_read(BIO *bio);
583 unsigned long BIO_number_written(BIO *bio);
585 # ifndef OPENSSL_NO_FP_API
586 # if defined(OPENSSL_SYS_WIN16) && defined(_WINDLL)
587 BIO_METHOD *BIO_s_file_internal(void);
588 BIO *BIO_new_file_internal(char *filename, char *mode);
589 BIO *BIO_new_fp_internal(FILE *stream, int close_flag);
590 # define BIO_s_file BIO_s_file_internal
591 # define BIO_new_file BIO_new_file_internal
592 # define BIO_new_fp BIO_new_fp_internal
594 BIO_METHOD *BIO_s_file(void);
595 BIO *BIO_new_file(const char *filename, const char *mode);
596 BIO *BIO_new_fp(FILE *stream, int close_flag);
597 # define BIO_s_file_internal BIO_s_file
598 # define BIO_new_file_internal BIO_new_file
599 # define BIO_new_fp_internal BIO_s_file
602 BIO *BIO_new(BIO_METHOD *type);
603 int BIO_set(BIO *a, BIO_METHOD *type);
604 int BIO_free(BIO *a);
605 void BIO_vfree(BIO *a);
606 int BIO_read(BIO *b, void *data, int len);
607 int BIO_gets(BIO *bp, char *buf, int size);
608 int BIO_write(BIO *b, const void *data, int len);
609 int BIO_puts(BIO *bp, const char *buf);
610 int BIO_indent(BIO *b, int indent, int max);
611 long BIO_ctrl(BIO *bp, int cmd, long larg, void *parg);
612 long BIO_callback_ctrl(BIO *b, int cmd,
613 void (*fp) (struct bio_st *, int, const char *, int,
615 char *BIO_ptr_ctrl(BIO *bp, int cmd, long larg);
616 long BIO_int_ctrl(BIO *bp, int cmd, long larg, int iarg);
617 BIO *BIO_push(BIO *b, BIO *append);
618 BIO *BIO_pop(BIO *b);
619 void BIO_free_all(BIO *a);
620 BIO *BIO_find_type(BIO *b, int bio_type);
621 BIO *BIO_next(BIO *b);
622 BIO *BIO_get_retry_BIO(BIO *bio, int *reason);
623 int BIO_get_retry_reason(BIO *bio);
624 BIO *BIO_dup_chain(BIO *in);
626 int BIO_nread0(BIO *bio, char **buf);
627 int BIO_nread(BIO *bio, char **buf, int num);
628 int BIO_nwrite0(BIO *bio, char **buf);
629 int BIO_nwrite(BIO *bio, char **buf, int num);
631 # ifndef OPENSSL_SYS_WIN16
632 long BIO_debug_callback(BIO *bio, int cmd, const char *argp, int argi,
633 long argl, long ret);
635 long _far _loadds BIO_debug_callback(BIO *bio, int cmd, const char *argp,
636 int argi, long argl, long ret);
639 BIO_METHOD *BIO_s_mem(void);
640 BIO *BIO_new_mem_buf(void *buf, int len);
641 BIO_METHOD *BIO_s_socket(void);
642 BIO_METHOD *BIO_s_connect(void);
643 BIO_METHOD *BIO_s_accept(void);
644 BIO_METHOD *BIO_s_fd(void);
645 # ifndef OPENSSL_SYS_OS2
646 BIO_METHOD *BIO_s_log(void);
648 BIO_METHOD *BIO_s_bio(void);
649 BIO_METHOD *BIO_s_null(void);
650 BIO_METHOD *BIO_f_null(void);
651 BIO_METHOD *BIO_f_buffer(void);
652 # ifdef OPENSSL_SYS_VMS
653 BIO_METHOD *BIO_f_linebuffer(void);
655 BIO_METHOD *BIO_f_nbio_test(void);
656 # ifndef OPENSSL_NO_DGRAM
657 BIO_METHOD *BIO_s_datagram(void);
660 /* BIO_METHOD *BIO_f_ber(void); */
662 int BIO_sock_should_retry(int i);
663 int BIO_sock_non_fatal_error(int error);
664 int BIO_dgram_non_fatal_error(int error);
666 int BIO_fd_should_retry(int i);
667 int BIO_fd_non_fatal_error(int error);
668 int BIO_dump_cb(int (*cb) (const void *data, size_t len, void *u),
669 void *u, const char *s, int len);
670 int BIO_dump_indent_cb(int (*cb) (const void *data, size_t len, void *u),
671 void *u, const char *s, int len, int indent);
672 int BIO_dump(BIO *b, const char *bytes, int len);
673 int BIO_dump_indent(BIO *b, const char *bytes, int len, int indent);
674 # ifndef OPENSSL_NO_FP_API
675 int BIO_dump_fp(FILE *fp, const char *s, int len);
676 int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent);
678 struct hostent *BIO_gethostbyname(const char *name);
680 * We might want a thread-safe interface too:
681 * struct hostent *BIO_gethostbyname_r(const char *name,
682 * struct hostent *result, void *buffer, size_t buflen);
683 * or something similar (caller allocates a struct hostent,
684 * pointed to by "result", and additional buffer space for the various
685 * substructures; if the buffer does not suffice, NULL is returned
686 * and an appropriate error code is set).
688 int BIO_sock_error(int sock);
689 int BIO_socket_ioctl(int fd, long type, void *arg);
690 int BIO_socket_nbio(int fd, int mode);
691 int BIO_get_port(const char *str, unsigned short *port_ptr);
692 int BIO_get_host_ip(const char *str, unsigned char *ip);
693 int BIO_get_accept_socket(char *host_port, int mode);
694 int BIO_accept(int sock, char **ip_port);
695 int BIO_sock_init(void);
696 void BIO_sock_cleanup(void);
697 int BIO_set_tcp_ndelay(int sock, int turn_on);
699 BIO *BIO_new_socket(int sock, int close_flag);
700 BIO *BIO_new_dgram(int fd, int close_flag);
701 BIO *BIO_new_fd(int fd, int close_flag);
702 BIO *BIO_new_connect(char *host_port);
703 BIO *BIO_new_accept(char *host_port);
705 int BIO_new_bio_pair(BIO **bio1, size_t writebuf1,
706 BIO **bio2, size_t writebuf2);
708 * If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints.
709 * Otherwise returns 0 and sets *bio1 and *bio2 to NULL. Size 0 uses default
713 void BIO_copy_next_retry(BIO *b);
716 * long BIO_ghbn_ctrl(int cmd,int iarg,char *parg);
720 # define __bio_h__attr__ __attribute__
722 # define __bio_h__attr__(x)
724 int BIO_printf(BIO *bio, const char *format, ...)
725 __bio_h__attr__((__format__(__printf__, 2, 3)));
726 int BIO_vprintf(BIO *bio, const char *format, va_list args)
727 __bio_h__attr__((__format__(__printf__, 2, 0)));
728 int BIO_snprintf(char *buf, size_t n, const char *format, ...)
729 __bio_h__attr__((__format__(__printf__, 3, 4)));
730 int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args)
731 __bio_h__attr__((__format__(__printf__, 3, 0)));
732 # undef __bio_h__attr__
734 /* BEGIN ERROR CODES */
736 * The following lines are auto generated by the script mkerr.pl. Any changes
737 * made after this point may be overwritten when the script is next run.
739 void ERR_load_BIO_strings(void);
741 /* Error codes for the BIO functions. */
743 /* Function codes. */
744 # define BIO_F_ACPT_STATE 100
745 # define BIO_F_BIO_ACCEPT 101
746 # define BIO_F_BIO_BER_GET_HEADER 102
747 # define BIO_F_BIO_CALLBACK_CTRL 131
748 # define BIO_F_BIO_CTRL 103
749 # define BIO_F_BIO_GETHOSTBYNAME 120
750 # define BIO_F_BIO_GETS 104
751 # define BIO_F_BIO_GET_ACCEPT_SOCKET 105
752 # define BIO_F_BIO_GET_HOST_IP 106
753 # define BIO_F_BIO_GET_PORT 107
754 # define BIO_F_BIO_MAKE_PAIR 121
755 # define BIO_F_BIO_NEW 108
756 # define BIO_F_BIO_NEW_FILE 109
757 # define BIO_F_BIO_NEW_MEM_BUF 126
758 # define BIO_F_BIO_NREAD 123
759 # define BIO_F_BIO_NREAD0 124
760 # define BIO_F_BIO_NWRITE 125
761 # define BIO_F_BIO_NWRITE0 122
762 # define BIO_F_BIO_PUTS 110
763 # define BIO_F_BIO_READ 111
764 # define BIO_F_BIO_SOCK_INIT 112
765 # define BIO_F_BIO_WRITE 113
766 # define BIO_F_BUFFER_CTRL 114
767 # define BIO_F_CONN_CTRL 127
768 # define BIO_F_CONN_STATE 115
769 # define BIO_F_FILE_CTRL 116
770 # define BIO_F_FILE_READ 130
771 # define BIO_F_LINEBUFFER_CTRL 129
772 # define BIO_F_MEM_READ 128
773 # define BIO_F_MEM_WRITE 117
774 # define BIO_F_SSL_NEW 118
775 # define BIO_F_WSASTARTUP 119
778 # define BIO_R_ACCEPT_ERROR 100
779 # define BIO_R_BAD_FOPEN_MODE 101
780 # define BIO_R_BAD_HOSTNAME_LOOKUP 102
781 # define BIO_R_BROKEN_PIPE 124
782 # define BIO_R_CONNECT_ERROR 103
783 # define BIO_R_EOF_ON_MEMORY_BIO 127
784 # define BIO_R_ERROR_SETTING_NBIO 104
785 # define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET 105
786 # define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET 106
787 # define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET 107
788 # define BIO_R_INVALID_ARGUMENT 125
789 # define BIO_R_INVALID_IP_ADDRESS 108
790 # define BIO_R_IN_USE 123
791 # define BIO_R_KEEPALIVE 109
792 # define BIO_R_NBIO_CONNECT_ERROR 110
793 # define BIO_R_NO_ACCEPT_PORT_SPECIFIED 111
794 # define BIO_R_NO_HOSTNAME_SPECIFIED 112
795 # define BIO_R_NO_PORT_DEFINED 113
796 # define BIO_R_NO_PORT_SPECIFIED 114
797 # define BIO_R_NO_SUCH_FILE 128
798 # define BIO_R_NULL_PARAMETER 115
799 # define BIO_R_TAG_MISMATCH 116
800 # define BIO_R_UNABLE_TO_BIND_SOCKET 117
801 # define BIO_R_UNABLE_TO_CREATE_SOCKET 118
802 # define BIO_R_UNABLE_TO_LISTEN_SOCKET 119
803 # define BIO_R_UNINITIALIZED 120
804 # define BIO_R_UNSUPPORTED_METHOD 121
805 # define BIO_R_WRITE_TO_READ_ONLY_BIO 126
806 # define BIO_R_WSASTARTUP 122