1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
61 # include <openssl/e_os2.h>
63 # ifndef OPENSSL_NO_STDIO
68 # include <openssl/crypto.h>
70 # ifndef OPENSSL_NO_SCTP
71 # ifndef OPENSSL_SYS_VMS
74 # include <inttypes.h>
82 /* These are the 'types' of BIOs */
83 # define BIO_TYPE_NONE 0
84 # define BIO_TYPE_MEM (1|0x0400)
85 # define BIO_TYPE_FILE (2|0x0400)
87 # define BIO_TYPE_FD (4|0x0400|0x0100)
88 # define BIO_TYPE_SOCKET (5|0x0400|0x0100)
89 # define BIO_TYPE_NULL (6|0x0400)
90 # define BIO_TYPE_SSL (7|0x0200)
91 # define BIO_TYPE_MD (8|0x0200)/* passive filter */
92 # define BIO_TYPE_BUFFER (9|0x0200)/* filter */
93 # define BIO_TYPE_CIPHER (10|0x0200)/* filter */
94 # define BIO_TYPE_BASE64 (11|0x0200)/* filter */
95 # define BIO_TYPE_CONNECT (12|0x0400|0x0100)/* socket - connect */
96 # define BIO_TYPE_ACCEPT (13|0x0400|0x0100)/* socket for accept */
97 /* # define BIO_TYPE_PROXY_CLIENT (14|0x0200)*/ /* client proxy BIO */
98 /* # define BIO_TYPE_PROXY_SERVER (15|0x0200)*/ /* server proxy BIO */
99 # define BIO_TYPE_NBIO_TEST (16|0x0200)/* server proxy BIO */
100 # define BIO_TYPE_NULL_FILTER (17|0x0200)
101 # define BIO_TYPE_BER (18|0x0200)/* BER -> bin filter */
102 # define BIO_TYPE_BIO (19|0x0400)/* (half a) BIO pair */
103 # define BIO_TYPE_LINEBUFFER (20|0x0200)/* filter */
104 # define BIO_TYPE_DGRAM (21|0x0400|0x0100)
105 # ifndef OPENSSL_NO_SCTP
106 # define BIO_TYPE_DGRAM_SCTP (24|0x0400|0x0100)
108 # define BIO_TYPE_ASN1 (22|0x0200)/* filter */
109 # define BIO_TYPE_COMP (23|0x0200)/* filter */
111 # define BIO_TYPE_DESCRIPTOR 0x0100/* socket, fd, connect or accept */
112 # define BIO_TYPE_FILTER 0x0200
113 # define BIO_TYPE_SOURCE_SINK 0x0400
116 * BIO_FILENAME_READ|BIO_CLOSE to open or close on free.
117 * BIO_set_fp(in,stdin,BIO_NOCLOSE);
119 # define BIO_NOCLOSE 0x00
120 # define BIO_CLOSE 0x01
123 * These are used in the following macros and are passed to BIO_ctrl()
125 # define BIO_CTRL_RESET 1/* opt - rewind/zero etc */
126 # define BIO_CTRL_EOF 2/* opt - are we at the eof */
127 # define BIO_CTRL_INFO 3/* opt - extra tit-bits */
128 # define BIO_CTRL_SET 4/* man - set the 'IO' type */
129 # define BIO_CTRL_GET 5/* man - get the 'IO' type */
130 # define BIO_CTRL_PUSH 6/* opt - internal, used to signify change */
131 # define BIO_CTRL_POP 7/* opt - internal, used to signify change */
132 # define BIO_CTRL_GET_CLOSE 8/* man - set the 'close' on free */
133 # define BIO_CTRL_SET_CLOSE 9/* man - set the 'close' on free */
134 # define BIO_CTRL_PENDING 10/* opt - is their more data buffered */
135 # define BIO_CTRL_FLUSH 11/* opt - 'flush' buffered output */
136 # define BIO_CTRL_DUP 12/* man - extra stuff for 'duped' BIO */
137 # define BIO_CTRL_WPENDING 13/* opt - number of bytes still to write */
138 /* callback is int cb(BIO *bio,state,ret); */
139 # define BIO_CTRL_SET_CALLBACK 14/* opt - set callback function */
140 # define BIO_CTRL_GET_CALLBACK 15/* opt - set callback function */
142 # define BIO_CTRL_SET_FILENAME 30/* BIO_s_file special */
144 /* dgram BIO stuff */
145 # define BIO_CTRL_DGRAM_CONNECT 31/* BIO dgram special */
146 # define BIO_CTRL_DGRAM_SET_CONNECTED 32/* allow for an externally connected
147 * socket to be passed in */
148 # define BIO_CTRL_DGRAM_SET_RECV_TIMEOUT 33/* setsockopt, essentially */
149 # define BIO_CTRL_DGRAM_GET_RECV_TIMEOUT 34/* getsockopt, essentially */
150 # define BIO_CTRL_DGRAM_SET_SEND_TIMEOUT 35/* setsockopt, essentially */
151 # define BIO_CTRL_DGRAM_GET_SEND_TIMEOUT 36/* getsockopt, essentially */
153 # define BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP 37/* flag whether the last */
154 # define BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP 38/* I/O operation tiemd out */
156 /* #ifdef IP_MTU_DISCOVER */
157 # define BIO_CTRL_DGRAM_MTU_DISCOVER 39/* set DF bit on egress packets */
160 # define BIO_CTRL_DGRAM_QUERY_MTU 40/* as kernel for current MTU */
161 # define BIO_CTRL_DGRAM_GET_FALLBACK_MTU 47
162 # define BIO_CTRL_DGRAM_GET_MTU 41/* get cached value for MTU */
163 # define BIO_CTRL_DGRAM_SET_MTU 42/* set cached value for MTU.
164 * want to use this if asking
165 * the kernel fails */
167 # define BIO_CTRL_DGRAM_MTU_EXCEEDED 43/* check whether the MTU was
168 * exceed in the previous write
171 # define BIO_CTRL_DGRAM_GET_PEER 46
172 # define BIO_CTRL_DGRAM_SET_PEER 44/* Destination for the data */
174 # define BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT 45/* Next DTLS handshake timeout
175 * to adjust socket timeouts */
176 # define BIO_CTRL_DGRAM_SET_DONT_FRAG 48
178 # define BIO_CTRL_DGRAM_GET_MTU_OVERHEAD 49
180 # define BIO_CTRL_DGRAM_SET_PEEK_MODE 50
182 # ifndef OPENSSL_NO_SCTP
184 # define BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE 50
185 # define BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY 51
186 # define BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY 52
187 # define BIO_CTRL_DGRAM_SCTP_AUTH_CCS_RCVD 53
188 # define BIO_CTRL_DGRAM_SCTP_GET_SNDINFO 60
189 # define BIO_CTRL_DGRAM_SCTP_SET_SNDINFO 61
190 # define BIO_CTRL_DGRAM_SCTP_GET_RCVINFO 62
191 # define BIO_CTRL_DGRAM_SCTP_SET_RCVINFO 63
192 # define BIO_CTRL_DGRAM_SCTP_GET_PRINFO 64
193 # define BIO_CTRL_DGRAM_SCTP_SET_PRINFO 65
194 # define BIO_CTRL_DGRAM_SCTP_SAVE_SHUTDOWN 70
198 # define BIO_FP_READ 0x02
199 # define BIO_FP_WRITE 0x04
200 # define BIO_FP_APPEND 0x08
201 # define BIO_FP_TEXT 0x10
203 # define BIO_FLAGS_READ 0x01
204 # define BIO_FLAGS_WRITE 0x02
205 # define BIO_FLAGS_IO_SPECIAL 0x04
206 # define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL)
207 # define BIO_FLAGS_SHOULD_RETRY 0x08
208 # ifndef BIO_FLAGS_UPLINK
210 * "UPLINK" flag denotes file descriptors provided by application. It
211 * defaults to 0, as most platforms don't require UPLINK interface.
213 # define BIO_FLAGS_UPLINK 0
216 # define BIO_FLAGS_BASE64_NO_NL 0x100
219 * This is used with memory BIOs: it means we shouldn't free up or change the
222 # define BIO_FLAGS_MEM_RDONLY 0x200
224 typedef struct bio_st BIO;
226 void BIO_set_flags(BIO *b, int flags);
227 int BIO_test_flags(const BIO *b, int flags);
228 void BIO_clear_flags(BIO *b, int flags);
230 # define BIO_get_flags(b) BIO_test_flags(b, ~(0x0))
231 # define BIO_set_retry_special(b) \
232 BIO_set_flags(b, (BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY))
233 # define BIO_set_retry_read(b) \
234 BIO_set_flags(b, (BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY))
235 # define BIO_set_retry_write(b) \
236 BIO_set_flags(b, (BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY))
238 /* These are normally used internally in BIOs */
239 # define BIO_clear_retry_flags(b) \
240 BIO_clear_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
241 # define BIO_get_retry_flags(b) \
242 BIO_test_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
244 /* These should be used by the application to tell why we should retry */
245 # define BIO_should_read(a) BIO_test_flags(a, BIO_FLAGS_READ)
246 # define BIO_should_write(a) BIO_test_flags(a, BIO_FLAGS_WRITE)
247 # define BIO_should_io_special(a) BIO_test_flags(a, BIO_FLAGS_IO_SPECIAL)
248 # define BIO_retry_type(a) BIO_test_flags(a, BIO_FLAGS_RWS)
249 # define BIO_should_retry(a) BIO_test_flags(a, BIO_FLAGS_SHOULD_RETRY)
252 * The next three are used in conjunction with the BIO_should_io_special()
253 * condition. After this returns true, BIO *BIO_get_retry_BIO(BIO *bio, int
254 * *reason); will walk the BIO stack and return the 'reason' for the special
255 * and the offending BIO. Given a BIO, BIO_get_retry_reason(bio) will return
259 * Returned from the SSL bio when the certificate retrieval code had an error
261 # define BIO_RR_SSL_X509_LOOKUP 0x01
262 /* Returned from the connect BIO when a connect would have blocked */
263 # define BIO_RR_CONNECT 0x02
264 /* Returned from the accept BIO when an accept would have blocked */
265 # define BIO_RR_ACCEPT 0x03
267 /* These are passed by the BIO callback */
268 # define BIO_CB_FREE 0x01
269 # define BIO_CB_READ 0x02
270 # define BIO_CB_WRITE 0x03
271 # define BIO_CB_PUTS 0x04
272 # define BIO_CB_GETS 0x05
273 # define BIO_CB_CTRL 0x06
276 * The callback is called before and after the underling operation, The
277 * BIO_CB_RETURN flag indicates if it is after the call
279 # define BIO_CB_RETURN 0x80
280 # define BIO_CB_return(a) ((a)|BIO_CB_RETURN)
281 # define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN))
282 # define BIO_cb_post(a) ((a)&BIO_CB_RETURN)
284 long (*BIO_get_callback(const BIO *b)) (struct bio_st *, int, const char *,
286 void BIO_set_callback(BIO *b,
287 long (*callback) (struct bio_st *, int, const char *,
289 char *BIO_get_callback_arg(const BIO *b);
290 void BIO_set_callback_arg(BIO *b, char *arg);
292 const char *BIO_method_name(const BIO *b);
293 int BIO_method_type(const BIO *b);
295 typedef void bio_info_cb (struct bio_st *, int, const char *, int, long,
298 typedef struct bio_method_st {
301 int (*bwrite) (BIO *, const char *, int);
302 int (*bread) (BIO *, char *, int);
303 int (*bputs) (BIO *, const char *);
304 int (*bgets) (BIO *, char *, int);
305 long (*ctrl) (BIO *, int, long, void *);
306 int (*create) (BIO *);
307 int (*destroy) (BIO *);
308 long (*callback_ctrl) (BIO *, int, bio_info_cb *);
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 */
318 int flags; /* extra storage */
322 struct bio_st *next_bio; /* used by filter BIOs */
323 struct bio_st *prev_bio; /* used by filter BIOs */
327 CRYPTO_EX_DATA ex_data;
332 typedef struct bio_f_buffer_ctx_struct {
334 * Buffers are setup like this:
336 * <---------------------- size ----------------------->
337 * +---------------------------------------------------+
338 * | consumed | remaining | free space |
339 * +---------------------------------------------------+
340 * <-- off --><------- len ------->
343 * this is now in the BIO struct
345 int ibuf_size; /* how big is the input buffer */
346 int obuf_size; /* how big is the output buffer */
347 char *ibuf; /* the char array */
348 int ibuf_len; /* how many bytes are in it */
349 int ibuf_off; /* write/read offset */
350 char *obuf; /* the char array */
351 int obuf_len; /* how many bytes are in it */
352 int obuf_off; /* write/read offset */
355 /* Prefix and suffix callback in ASN1 BIO */
356 typedef int asn1_ps_func (BIO *b, unsigned char **pbuf, int *plen,
359 # ifndef OPENSSL_NO_SCTP
360 /* SCTP parameter structs */
361 struct bio_dgram_sctp_sndinfo {
365 uint32_t snd_context;
368 struct bio_dgram_sctp_rcvinfo {
375 uint32_t rcv_context;
378 struct bio_dgram_sctp_prinfo {
384 /* connect BIO stuff */
385 # define BIO_CONN_S_BEFORE 1
386 # define BIO_CONN_S_GET_IP 2
387 # define BIO_CONN_S_GET_PORT 3
388 # define BIO_CONN_S_CREATE_SOCKET 4
389 # define BIO_CONN_S_CONNECT 5
390 # define BIO_CONN_S_OK 6
391 # define BIO_CONN_S_BLOCKED_CONNECT 7
392 # define BIO_CONN_S_NBIO 8
394 * #define BIO_CONN_get_param_hostname BIO_ctrl
397 # define BIO_C_SET_CONNECT 100
398 # define BIO_C_DO_STATE_MACHINE 101
399 # define BIO_C_SET_NBIO 102
400 /* # define BIO_C_SET_PROXY_PARAM 103 */
401 # define BIO_C_SET_FD 104
402 # define BIO_C_GET_FD 105
403 # define BIO_C_SET_FILE_PTR 106
404 # define BIO_C_GET_FILE_PTR 107
405 # define BIO_C_SET_FILENAME 108
406 # define BIO_C_SET_SSL 109
407 # define BIO_C_GET_SSL 110
408 # define BIO_C_SET_MD 111
409 # define BIO_C_GET_MD 112
410 # define BIO_C_GET_CIPHER_STATUS 113
411 # define BIO_C_SET_BUF_MEM 114
412 # define BIO_C_GET_BUF_MEM_PTR 115
413 # define BIO_C_GET_BUFF_NUM_LINES 116
414 # define BIO_C_SET_BUFF_SIZE 117
415 # define BIO_C_SET_ACCEPT 118
416 # define BIO_C_SSL_MODE 119
417 # define BIO_C_GET_MD_CTX 120
418 /* # define BIO_C_GET_PROXY_PARAM 121 */
419 # define BIO_C_SET_BUFF_READ_DATA 122/* data to read first */
420 # define BIO_C_GET_CONNECT 123
421 # define BIO_C_GET_ACCEPT 124
422 # define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125
423 # define BIO_C_GET_SSL_NUM_RENEGOTIATES 126
424 # define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127
425 # define BIO_C_FILE_SEEK 128
426 # define BIO_C_GET_CIPHER_CTX 129
427 # define BIO_C_SET_BUF_MEM_EOF_RETURN 130/* return end of input
429 # define BIO_C_SET_BIND_MODE 131
430 # define BIO_C_GET_BIND_MODE 132
431 # define BIO_C_FILE_TELL 133
432 # define BIO_C_GET_SOCKS 134
433 # define BIO_C_SET_SOCKS 135
435 # define BIO_C_SET_WRITE_BUF_SIZE 136/* for BIO_s_bio */
436 # define BIO_C_GET_WRITE_BUF_SIZE 137
437 # define BIO_C_MAKE_BIO_PAIR 138
438 # define BIO_C_DESTROY_BIO_PAIR 139
439 # define BIO_C_GET_WRITE_GUARANTEE 140
440 # define BIO_C_GET_READ_REQUEST 141
441 # define BIO_C_SHUTDOWN_WR 142
442 # define BIO_C_NREAD0 143
443 # define BIO_C_NREAD 144
444 # define BIO_C_NWRITE0 145
445 # define BIO_C_NWRITE 146
446 # define BIO_C_RESET_READ_REQUEST 147
447 # define BIO_C_SET_MD_CTX 148
449 # define BIO_C_SET_PREFIX 149
450 # define BIO_C_GET_PREFIX 150
451 # define BIO_C_SET_SUFFIX 151
452 # define BIO_C_GET_SUFFIX 152
454 # define BIO_C_SET_EX_ARG 153
455 # define BIO_C_GET_EX_ARG 154
457 # define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,arg)
458 # define BIO_get_app_data(s) BIO_get_ex_data(s,0)
460 /* BIO_s_connect() and BIO_s_socks4a_connect() */
461 # define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name)
462 # define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port)
463 # define BIO_set_conn_ip(b,ip) BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip)
464 # define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port)
465 # define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0)
466 # define BIO_get_conn_port(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1)
467 # define BIO_get_conn_ip(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,2)
468 # define BIO_get_conn_int_port(b) BIO_ctrl(b,BIO_C_GET_CONNECT,3,NULL)
470 # define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL)
473 # define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name)
474 # define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0)
475 /* #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */
476 # define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?(void *)"a":NULL)
477 # define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio)
479 # define BIO_BIND_NORMAL 0
480 # define BIO_BIND_REUSEADDR_IF_UNUSED 1
481 # define BIO_BIND_REUSEADDR 2
482 # define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL)
483 # define BIO_get_bind_mode(b) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL)
485 /* BIO_s_accept() and BIO_s_connect() */
486 # define BIO_do_connect(b) BIO_do_handshake(b)
487 # define BIO_do_accept(b) BIO_do_handshake(b)
488 # define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL)
490 /* BIO_s_datagram(), BIO_s_fd(), BIO_s_socket(), BIO_s_accept() and BIO_s_connect() */
491 # define BIO_set_fd(b,fd,c) BIO_int_ctrl(b,BIO_C_SET_FD,c,fd)
492 # define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c)
495 # define BIO_set_fp(b,fp,c) BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp)
496 # define BIO_get_fp(b,fpp) BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp)
498 /* BIO_s_fd() and BIO_s_file() */
499 # define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL)
500 # define BIO_tell(b) (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL)
503 * name is cast to lose const, but might be better to route through a
504 * function so we can do it safely
508 * If you are wondering why this isn't defined, its because CONST_STRICT is
509 * purely a compile-time kludge to allow const to be checked.
511 int BIO_read_filename(BIO *b, const char *name);
513 # define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
514 BIO_CLOSE|BIO_FP_READ,(char *)name)
516 # define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
517 BIO_CLOSE|BIO_FP_WRITE,name)
518 # define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
519 BIO_CLOSE|BIO_FP_APPEND,name)
520 # define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
521 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name)
524 * WARNING WARNING, this ups the reference count on the read bio of the SSL
525 * structure. This is because the ssl read BIO is now pointed to by the
526 * next_bio field in the bio. So when you free the BIO, make sure you are
527 * doing a BIO_free_all() to catch the underlying BIO.
529 # define BIO_set_ssl(b,ssl,c) BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl)
530 # define BIO_get_ssl(b,sslp) BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp)
531 # define BIO_set_ssl_mode(b,client) BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL)
532 # define BIO_set_ssl_renegotiate_bytes(b,num) \
533 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL);
534 # define BIO_get_num_renegotiates(b) \
535 BIO_ctrl(b,BIO_C_GET_SSL_NUM_RENEGOTIATES,0,NULL);
536 # define BIO_set_ssl_renegotiate_timeout(b,seconds) \
537 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL);
539 /* defined in evp.h */
540 /* #define BIO_set_md(b,md) BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */
542 # define BIO_get_mem_data(b,pp) BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp)
543 # define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm)
544 # define BIO_get_mem_ptr(b,pp) BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp)
545 # define BIO_set_mem_eof_return(b,v) \
546 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL)
548 /* For the BIO_f_buffer() type */
549 # define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL)
550 # define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL)
551 # define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0)
552 # define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1)
553 # define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf)
555 /* Don't use the next one unless you know what you are doing :-) */
556 # define BIO_dup_state(b,ret) BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret))
558 # define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL)
559 # define BIO_eof(b) (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL)
560 # define BIO_set_close(b,c) (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL)
561 # define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL)
562 # define BIO_pending(b) (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL)
563 # define BIO_wpending(b) (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL)
564 /* ...pending macros have inappropriate return type */
565 size_t BIO_ctrl_pending(BIO *b);
566 size_t BIO_ctrl_wpending(BIO *b);
567 # define BIO_flush(b) (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL)
568 # define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0, \
570 # define BIO_set_info_callback(b,cb) (int)BIO_callback_ctrl(b,BIO_CTRL_SET_CALLBACK,cb)
572 /* For the BIO_f_buffer() type */
573 # define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL)
575 /* For BIO_s_bio() */
576 # define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL)
577 # define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL)
578 # define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2)
579 # define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL)
580 # define BIO_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL)
581 /* macros with inappropriate type -- but ...pending macros use int too: */
582 # define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL)
583 # define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL)
584 size_t BIO_ctrl_get_write_guarantee(BIO *b);
585 size_t BIO_ctrl_get_read_request(BIO *b);
586 int BIO_ctrl_reset_read_request(BIO *b);
588 /* ctrl macros for dgram */
589 # define BIO_ctrl_dgram_connect(b,peer) \
590 (int)BIO_ctrl(b,BIO_CTRL_DGRAM_CONNECT,0, (char *)peer)
591 # define BIO_ctrl_set_connected(b,peer) \
592 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_CONNECTED, 0, (char *)peer)
593 # define BIO_dgram_recv_timedout(b) \
594 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP, 0, NULL)
595 # define BIO_dgram_send_timedout(b) \
596 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP, 0, NULL)
597 # define BIO_dgram_get_peer(b,peer) \
598 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_PEER, 0, (char *)peer)
599 # define BIO_dgram_set_peer(b,peer) \
600 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, (char *)peer)
601 # define BIO_dgram_get_mtu_overhead(b) \
602 (unsigned int)BIO_ctrl((b), BIO_CTRL_DGRAM_GET_MTU_OVERHEAD, 0, NULL)
604 #define BIO_get_ex_new_index(l, p, newf, dupf, freef) \
605 CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_BIO, l, p, newf, dupf, freef)
606 int BIO_set_ex_data(BIO *bio, int idx, void *data);
607 void *BIO_get_ex_data(BIO *bio, int idx);
608 uint64_t BIO_number_read(BIO *bio);
609 uint64_t BIO_number_written(BIO *bio);
611 /* For BIO_f_asn1() */
612 int BIO_asn1_set_prefix(BIO *b, asn1_ps_func *prefix,
613 asn1_ps_func *prefix_free);
614 int BIO_asn1_get_prefix(BIO *b, asn1_ps_func **pprefix,
615 asn1_ps_func **pprefix_free);
616 int BIO_asn1_set_suffix(BIO *b, asn1_ps_func *suffix,
617 asn1_ps_func *suffix_free);
618 int BIO_asn1_get_suffix(BIO *b, asn1_ps_func **psuffix,
619 asn1_ps_func **psuffix_free);
621 BIO_METHOD *BIO_s_file(void);
622 BIO *BIO_new_file(const char *filename, const char *mode);
623 # ifndef OPENSSL_NO_STDIO
624 BIO *BIO_new_fp(FILE *stream, int close_flag);
626 BIO *BIO_new(BIO_METHOD *type);
627 int BIO_set(BIO *a, BIO_METHOD *type);
628 int BIO_free(BIO *a);
629 void BIO_vfree(BIO *a);
630 int BIO_read(BIO *b, void *data, int len);
631 int BIO_gets(BIO *bp, char *buf, int size);
632 int BIO_write(BIO *b, const void *data, int len);
633 int BIO_puts(BIO *bp, const char *buf);
634 int BIO_indent(BIO *b, int indent, int max);
635 long BIO_ctrl(BIO *bp, int cmd, long larg, void *parg);
636 long BIO_callback_ctrl(BIO *b, int cmd,
637 void (*fp) (struct bio_st *, int, const char *, int,
639 char *BIO_ptr_ctrl(BIO *bp, int cmd, long larg);
640 long BIO_int_ctrl(BIO *bp, int cmd, long larg, int iarg);
641 BIO *BIO_push(BIO *b, BIO *append);
642 BIO *BIO_pop(BIO *b);
643 void BIO_free_all(BIO *a);
644 BIO *BIO_find_type(BIO *b, int bio_type);
645 BIO *BIO_next(BIO *b);
646 BIO *BIO_get_retry_BIO(BIO *bio, int *reason);
647 int BIO_get_retry_reason(BIO *bio);
648 BIO *BIO_dup_chain(BIO *in);
650 int BIO_nread0(BIO *bio, char **buf);
651 int BIO_nread(BIO *bio, char **buf, int num);
652 int BIO_nwrite0(BIO *bio, char **buf);
653 int BIO_nwrite(BIO *bio, char **buf, int num);
655 long BIO_debug_callback(BIO *bio, int cmd, const char *argp, int argi,
656 long argl, long ret);
658 BIO_METHOD *BIO_s_mem(void);
659 BIO_METHOD *BIO_s_secmem(void);
660 BIO *BIO_new_mem_buf(void *buf, int len);
661 BIO_METHOD *BIO_s_socket(void);
662 BIO_METHOD *BIO_s_connect(void);
663 BIO_METHOD *BIO_s_accept(void);
664 BIO_METHOD *BIO_s_fd(void);
665 # ifndef OPENSSL_SYS_OS2
666 BIO_METHOD *BIO_s_log(void);
668 BIO_METHOD *BIO_s_bio(void);
669 BIO_METHOD *BIO_s_null(void);
670 BIO_METHOD *BIO_f_null(void);
671 BIO_METHOD *BIO_f_buffer(void);
672 # ifdef OPENSSL_SYS_VMS
673 BIO_METHOD *BIO_f_linebuffer(void);
675 BIO_METHOD *BIO_f_nbio_test(void);
676 # ifndef OPENSSL_NO_DGRAM
677 BIO_METHOD *BIO_s_datagram(void);
678 # ifndef OPENSSL_NO_SCTP
679 BIO_METHOD *BIO_s_datagram_sctp(void);
683 /* BIO_METHOD *BIO_f_ber(void); */
685 int BIO_sock_should_retry(int i);
686 int BIO_sock_non_fatal_error(int error);
687 int BIO_dgram_non_fatal_error(int error);
689 int BIO_fd_should_retry(int i);
690 int BIO_fd_non_fatal_error(int error);
691 int BIO_dump_cb(int (*cb) (const void *data, size_t len, void *u),
692 void *u, const char *s, int len);
693 int BIO_dump_indent_cb(int (*cb) (const void *data, size_t len, void *u),
694 void *u, const char *s, int len, int indent);
695 int BIO_dump(BIO *b, const char *bytes, int len);
696 int BIO_dump_indent(BIO *b, const char *bytes, int len, int indent);
697 # ifndef OPENSSL_NO_STDIO
698 int BIO_dump_fp(FILE *fp, const char *s, int len);
699 int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent);
701 int BIO_hex_string(BIO *out, int indent, int width, unsigned char *data,
704 struct hostent *BIO_gethostbyname(const char *name);
706 * We might want a thread-safe interface too:
707 * struct hostent *BIO_gethostbyname_r(const char *name,
708 * struct hostent *result, void *buffer, size_t buflen);
709 * or something similar (caller allocates a struct hostent,
710 * pointed to by "result", and additional buffer space for the various
711 * substructures; if the buffer does not suffice, NULL is returned
712 * and an appropriate error code is set).
714 int BIO_sock_error(int sock);
715 int BIO_socket_ioctl(int fd, long type, void *arg);
716 int BIO_socket_nbio(int fd, int mode);
717 int BIO_get_port(const char *str, unsigned short *port_ptr);
718 int BIO_get_host_ip(const char *str, unsigned char *ip);
719 int BIO_get_accept_socket(char *host_port, int mode);
720 int BIO_accept(int sock, char **ip_port);
721 int BIO_sock_init(void);
722 void BIO_sock_cleanup(void);
723 int BIO_set_tcp_ndelay(int sock, int turn_on);
725 BIO *BIO_new_socket(int sock, int close_flag);
726 BIO *BIO_new_dgram(int fd, int close_flag);
727 # ifndef OPENSSL_NO_SCTP
728 BIO *BIO_new_dgram_sctp(int fd, int close_flag);
729 int BIO_dgram_is_sctp(BIO *bio);
730 int BIO_dgram_sctp_notification_cb(BIO *b,
731 void (*handle_notifications) (BIO *bio,
736 int BIO_dgram_sctp_wait_for_dry(BIO *b);
737 int BIO_dgram_sctp_msg_waiting(BIO *b);
739 BIO *BIO_new_fd(int fd, int close_flag);
740 BIO *BIO_new_connect(const char *host_port);
741 BIO *BIO_new_accept(const char *host_port);
743 int BIO_new_bio_pair(BIO **bio1, size_t writebuf1,
744 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. Size 0 uses default
751 void BIO_copy_next_retry(BIO *b);
754 * long BIO_ghbn_ctrl(int cmd,int iarg,char *parg);
758 # define __bio_h__attr__ __attribute__
760 # define __bio_h__attr__(x)
762 int BIO_printf(BIO *bio, const char *format, ...)
763 __bio_h__attr__((__format__(__printf__, 2, 3)));
764 int BIO_vprintf(BIO *bio, const char *format, va_list args)
765 __bio_h__attr__((__format__(__printf__, 2, 0)));
766 int BIO_snprintf(char *buf, size_t n, const char *format, ...)
767 __bio_h__attr__((__format__(__printf__, 3, 4)));
768 int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args)
769 __bio_h__attr__((__format__(__printf__, 3, 0)));
770 # undef __bio_h__attr__
772 /* BEGIN ERROR CODES */
774 * The following lines are auto generated by the script mkerr.pl. Any changes
775 * made after this point may be overwritten when the script is next run.
777 void ERR_load_BIO_strings(void);
779 /* Error codes for the BIO functions. */
781 /* Function codes. */
782 # define BIO_F_ACPT_STATE 100
783 # define BIO_F_BIO_ACCEPT 101
784 # define BIO_F_BIO_BER_GET_HEADER 102
785 # define BIO_F_BIO_CALLBACK_CTRL 131
786 # define BIO_F_BIO_CTRL 103
787 # define BIO_F_BIO_GETHOSTBYNAME 120
788 # define BIO_F_BIO_GETS 104
789 # define BIO_F_BIO_GET_ACCEPT_SOCKET 105
790 # define BIO_F_BIO_GET_HOST_IP 106
791 # define BIO_F_BIO_GET_PORT 107
792 # define BIO_F_BIO_MAKE_PAIR 121
793 # define BIO_F_BIO_NEW 108
794 # define BIO_F_BIO_NEW_FILE 109
795 # define BIO_F_BIO_NEW_MEM_BUF 126
796 # define BIO_F_BIO_NREAD 123
797 # define BIO_F_BIO_NREAD0 124
798 # define BIO_F_BIO_NWRITE 125
799 # define BIO_F_BIO_NWRITE0 122
800 # define BIO_F_BIO_PUTS 110
801 # define BIO_F_BIO_READ 111
802 # define BIO_F_BIO_SOCK_INIT 112
803 # define BIO_F_BIO_WRITE 113
804 # define BIO_F_BUFFER_CTRL 114
805 # define BIO_F_CONN_CTRL 127
806 # define BIO_F_CONN_STATE 115
807 # define BIO_F_DGRAM_SCTP_READ 132
808 # define BIO_F_DGRAM_SCTP_WRITE 133
809 # define BIO_F_FILE_CTRL 116
810 # define BIO_F_FILE_READ 130
811 # define BIO_F_LINEBUFFER_CTRL 129
812 # define BIO_F_MEM_READ 128
813 # define BIO_F_MEM_WRITE 117
814 # define BIO_F_SSL_NEW 118
815 # define BIO_F_WSASTARTUP 119
818 # define BIO_R_ACCEPT_ERROR 100
819 # define BIO_R_BAD_FOPEN_MODE 101
820 # define BIO_R_BAD_HOSTNAME_LOOKUP 102
821 # define BIO_R_BROKEN_PIPE 124
822 # define BIO_R_CONNECT_ERROR 103
823 # define BIO_R_EOF_ON_MEMORY_BIO 127
824 # define BIO_R_ERROR_SETTING_NBIO 104
825 # define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET 105
826 # define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET 106
827 # define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET 107
828 # define BIO_R_INVALID_ARGUMENT 125
829 # define BIO_R_INVALID_IP_ADDRESS 108
830 # define BIO_R_IN_USE 123
831 # define BIO_R_KEEPALIVE 109
832 # define BIO_R_NBIO_CONNECT_ERROR 110
833 # define BIO_R_NO_ACCEPT_PORT_SPECIFIED 111
834 # define BIO_R_NO_HOSTNAME_SPECIFIED 112
835 # define BIO_R_NO_PORT_DEFINED 113
836 # define BIO_R_NO_PORT_SPECIFIED 114
837 # define BIO_R_NO_SUCH_FILE 128
838 # define BIO_R_NULL_PARAMETER 115
839 # define BIO_R_TAG_MISMATCH 116
840 # define BIO_R_UNABLE_TO_BIND_SOCKET 117
841 # define BIO_R_UNABLE_TO_CREATE_SOCKET 118
842 # define BIO_R_UNABLE_TO_LISTEN_SOCKET 119
843 # define BIO_R_UNINITIALIZED 120
844 # define BIO_R_UNSUPPORTED_METHOD 121
845 # define BIO_R_WRITE_TO_READ_ONLY_BIO 126
846 # define BIO_R_WSASTARTUP 122