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>
71 #ifndef OPENSSL_NO_SCTP
72 # ifndef OPENSSL_SYS_VMS
75 # include <inttypes.h>
83 /* These are the 'types' of BIOs */
84 #define BIO_TYPE_NONE 0
85 #define BIO_TYPE_MEM (1|0x0400)
86 #define BIO_TYPE_FILE (2|0x0400)
88 #define BIO_TYPE_FD (4|0x0400|0x0100)
89 #define BIO_TYPE_SOCKET (5|0x0400|0x0100)
90 #define BIO_TYPE_NULL (6|0x0400)
91 #define BIO_TYPE_SSL (7|0x0200)
92 #define BIO_TYPE_MD (8|0x0200) /* passive filter */
93 #define BIO_TYPE_BUFFER (9|0x0200) /* filter */
94 #define BIO_TYPE_CIPHER (10|0x0200) /* filter */
95 #define BIO_TYPE_BASE64 (11|0x0200) /* filter */
96 #define BIO_TYPE_CONNECT (12|0x0400|0x0100) /* socket - connect */
97 #define BIO_TYPE_ACCEPT (13|0x0400|0x0100) /* socket for accept */
98 #define BIO_TYPE_PROXY_CLIENT (14|0x0200) /* client proxy BIO */
99 #define BIO_TYPE_PROXY_SERVER (15|0x0200) /* server proxy BIO */
100 #define BIO_TYPE_NBIO_TEST (16|0x0200) /* server proxy BIO */
101 #define BIO_TYPE_NULL_FILTER (17|0x0200)
102 #define BIO_TYPE_BER (18|0x0200) /* BER -> bin filter */
103 #define BIO_TYPE_BIO (19|0x0400) /* (half a) BIO pair */
104 #define BIO_TYPE_LINEBUFFER (20|0x0200) /* filter */
105 #define BIO_TYPE_DGRAM (21|0x0400|0x0100)
106 #ifndef OPENSSL_NO_SCTP
107 #define BIO_TYPE_DGRAM_SCTP (24|0x0400|0x0100)
109 #define BIO_TYPE_ASN1 (22|0x0200) /* filter */
110 #define BIO_TYPE_COMP (23|0x0200) /* filter */
112 #define BIO_TYPE_DESCRIPTOR 0x0100 /* socket, fd, connect or accept */
113 #define BIO_TYPE_FILTER 0x0200
114 #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); */
118 #define BIO_NOCLOSE 0x00
119 #define BIO_CLOSE 0x01
121 /* These are used in the following macros and are passed to
123 #define BIO_CTRL_RESET 1 /* opt - rewind/zero etc */
124 #define BIO_CTRL_EOF 2 /* opt - are we at the eof */
125 #define BIO_CTRL_INFO 3 /* opt - extra tit-bits */
126 #define BIO_CTRL_SET 4 /* man - set the 'IO' type */
127 #define BIO_CTRL_GET 5 /* man - get the 'IO' type */
128 #define BIO_CTRL_PUSH 6 /* opt - internal, used to signify change */
129 #define BIO_CTRL_POP 7 /* opt - internal, used to signify change */
130 #define BIO_CTRL_GET_CLOSE 8 /* man - set the 'close' on free */
131 #define BIO_CTRL_SET_CLOSE 9 /* man - set the 'close' on free */
132 #define BIO_CTRL_PENDING 10 /* opt - is their more data buffered */
133 #define BIO_CTRL_FLUSH 11 /* opt - 'flush' buffered output */
134 #define BIO_CTRL_DUP 12 /* man - extra stuff for 'duped' BIO */
135 #define BIO_CTRL_WPENDING 13 /* opt - number of bytes still to write */
136 /* callback is int cb(BIO *bio,state,ret); */
137 #define BIO_CTRL_SET_CALLBACK 14 /* opt - set callback function */
138 #define BIO_CTRL_GET_CALLBACK 15 /* opt - set callback function */
140 #define BIO_CTRL_SET_FILENAME 30 /* BIO_s_file special */
142 /* dgram BIO stuff */
143 #define BIO_CTRL_DGRAM_CONNECT 31 /* BIO dgram special */
144 #define BIO_CTRL_DGRAM_SET_CONNECTED 32 /* allow for an externally
145 * connected socket to be
147 #define BIO_CTRL_DGRAM_SET_RECV_TIMEOUT 33 /* setsockopt, essentially */
148 #define BIO_CTRL_DGRAM_GET_RECV_TIMEOUT 34 /* getsockopt, essentially */
149 #define BIO_CTRL_DGRAM_SET_SEND_TIMEOUT 35 /* setsockopt, essentially */
150 #define BIO_CTRL_DGRAM_GET_SEND_TIMEOUT 36 /* getsockopt, essentially */
152 #define BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP 37 /* flag whether the last */
153 #define BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP 38 /* I/O operation tiemd out */
155 /* #ifdef IP_MTU_DISCOVER */
156 #define BIO_CTRL_DGRAM_MTU_DISCOVER 39 /* set DF bit on egress packets */
159 #define BIO_CTRL_DGRAM_QUERY_MTU 40 /* as kernel for current MTU */
160 #define BIO_CTRL_DGRAM_GET_FALLBACK_MTU 47
161 #define BIO_CTRL_DGRAM_GET_MTU 41 /* get cached value for MTU */
162 #define BIO_CTRL_DGRAM_SET_MTU 42 /* set cached value for
163 * MTU. want to use this
164 * if asking the kernel
167 #define BIO_CTRL_DGRAM_MTU_EXCEEDED 43 /* check whether the MTU
172 #define BIO_CTRL_DGRAM_GET_PEER 46
173 #define BIO_CTRL_DGRAM_SET_PEER 44 /* Destination for the data */
175 #define BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT 45 /* Next DTLS handshake timeout to
176 * adjust socket timeouts */
177 #define BIO_CTRL_DGRAM_SET_DONT_FRAG 48
179 #ifndef OPENSSL_NO_SCTP
181 #define BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE 50
182 #define BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY 51
183 #define BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY 52
184 #define BIO_CTRL_DGRAM_SCTP_AUTH_CCS_RCVD 53
185 #define BIO_CTRL_DGRAM_SCTP_GET_SNDINFO 60
186 #define BIO_CTRL_DGRAM_SCTP_SET_SNDINFO 61
187 #define BIO_CTRL_DGRAM_SCTP_GET_RCVINFO 62
188 #define BIO_CTRL_DGRAM_SCTP_SET_RCVINFO 63
189 #define BIO_CTRL_DGRAM_SCTP_GET_PRINFO 64
190 #define BIO_CTRL_DGRAM_SCTP_SET_PRINFO 65
191 #define BIO_CTRL_DGRAM_SCTP_SAVE_SHUTDOWN 70
195 #define BIO_FP_READ 0x02
196 #define BIO_FP_WRITE 0x04
197 #define BIO_FP_APPEND 0x08
198 #define BIO_FP_TEXT 0x10
200 #define BIO_FLAGS_READ 0x01
201 #define BIO_FLAGS_WRITE 0x02
202 #define BIO_FLAGS_IO_SPECIAL 0x04
203 #define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL)
204 #define BIO_FLAGS_SHOULD_RETRY 0x08
205 #ifndef BIO_FLAGS_UPLINK
206 /* "UPLINK" flag denotes file descriptors provided by application.
207 It defaults to 0, as most platforms don't require UPLINK interface. */
208 #define BIO_FLAGS_UPLINK 0
211 /* Used in BIO_gethostbyname() */
212 #define BIO_GHBN_CTRL_HITS 1
213 #define BIO_GHBN_CTRL_MISSES 2
214 #define BIO_GHBN_CTRL_CACHE_SIZE 3
215 #define BIO_GHBN_CTRL_GET_ENTRY 4
216 #define BIO_GHBN_CTRL_FLUSH 5
218 /* Mostly used in the SSL BIO */
220 * #define BIO_FLAGS_PROTOCOL_DELAYED_READ 0x10
221 * #define BIO_FLAGS_PROTOCOL_DELAYED_WRITE 0x20
222 * #define BIO_FLAGS_PROTOCOL_STARTUP 0x40
225 #define BIO_FLAGS_BASE64_NO_NL 0x100
227 /* This is used with memory BIOs: it means we shouldn't free up or change the
230 #define BIO_FLAGS_MEM_RDONLY 0x200
232 typedef struct bio_st BIO;
234 void BIO_set_flags(BIO *b, int flags);
235 int BIO_test_flags(const BIO *b, int flags);
236 void BIO_clear_flags(BIO *b, int flags);
238 #define BIO_get_flags(b) BIO_test_flags(b, ~(0x0))
239 #define BIO_set_retry_special(b) \
240 BIO_set_flags(b, (BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY))
241 #define BIO_set_retry_read(b) \
242 BIO_set_flags(b, (BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY))
243 #define BIO_set_retry_write(b) \
244 BIO_set_flags(b, (BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY))
246 /* These are normally used internally in BIOs */
247 #define BIO_clear_retry_flags(b) \
248 BIO_clear_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
249 #define BIO_get_retry_flags(b) \
250 BIO_test_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
252 /* These should be used by the application to tell why we should retry */
253 #define BIO_should_read(a) BIO_test_flags(a, BIO_FLAGS_READ)
254 #define BIO_should_write(a) BIO_test_flags(a, BIO_FLAGS_WRITE)
255 #define BIO_should_io_special(a) BIO_test_flags(a, BIO_FLAGS_IO_SPECIAL)
256 #define BIO_retry_type(a) BIO_test_flags(a, BIO_FLAGS_RWS)
257 #define BIO_should_retry(a) BIO_test_flags(a, BIO_FLAGS_SHOULD_RETRY)
259 /* The next three are used in conjunction with the
260 * BIO_should_io_special() condition. After this returns true,
261 * BIO *BIO_get_retry_BIO(BIO *bio, int *reason); will walk the BIO
262 * stack and return the 'reason' for the special and the offending BIO.
263 * Given a BIO, BIO_get_retry_reason(bio) will return the code. */
264 /* Returned from the SSL bio when the certificate retrieval code had an error */
265 #define BIO_RR_SSL_X509_LOOKUP 0x01
266 /* Returned from the connect BIO when a connect would have blocked */
267 #define BIO_RR_CONNECT 0x02
268 /* Returned from the accept BIO when an accept would have blocked */
269 #define BIO_RR_ACCEPT 0x03
271 /* These are passed by the BIO callback */
272 #define BIO_CB_FREE 0x01
273 #define BIO_CB_READ 0x02
274 #define BIO_CB_WRITE 0x03
275 #define BIO_CB_PUTS 0x04
276 #define BIO_CB_GETS 0x05
277 #define BIO_CB_CTRL 0x06
279 /* The callback is called before and after the underling operation,
280 * The BIO_CB_RETURN flag indicates if it is after the call */
281 #define BIO_CB_RETURN 0x80
282 #define BIO_CB_return(a) ((a)|BIO_CB_RETURN))
283 #define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN))
284 #define BIO_cb_post(a) ((a)&BIO_CB_RETURN)
286 long (*BIO_get_callback(const BIO *b)) (struct bio_st *,int,const char *,int, long,long);
287 void BIO_set_callback(BIO *b,
288 long (*callback)(struct bio_st *,int,const char *,int, long,long));
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, long);
297 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 *);
314 /* bio, mode, argp, argi, argl, ret */
315 long (*callback)(struct bio_st *,int,const char *,int, long,long);
316 char *cb_arg; /* first argument for the callback */
320 int flags; /* extra storage */
324 struct bio_st *next_bio; /* used by filter BIOs */
325 struct bio_st *prev_bio; /* used by filter BIOs */
327 unsigned long num_read;
328 unsigned long num_write;
330 CRYPTO_EX_DATA ex_data;
333 DECLARE_STACK_OF(BIO)
335 typedef struct bio_f_buffer_ctx_struct
337 /* Buffers are setup like this:
339 * <---------------------- size ----------------------->
340 * +---------------------------------------------------+
341 * | consumed | remaining | free space |
342 * +---------------------------------------------------+
343 * <-- off --><------- len ------->
346 /* BIO *bio; */ /* this is now in the BIO struct */
347 int ibuf_size; /* how big is the input buffer */
348 int obuf_size; /* how big is the output buffer */
350 char *ibuf; /* the char array */
351 int ibuf_len; /* how many bytes are in it */
352 int ibuf_off; /* write/read offset */
354 char *obuf; /* the char array */
355 int obuf_len; /* how many bytes are in it */
356 int obuf_off; /* write/read offset */
359 /* Prefix and suffix callback in ASN1 BIO */
360 typedef int asn1_ps_func(BIO *b, unsigned char **pbuf, int *plen, void *parg);
362 #ifndef OPENSSL_NO_SCTP
363 /* SCTP parameter structs */
364 struct bio_dgram_sctp_sndinfo
369 uint32_t snd_context;
372 struct bio_dgram_sctp_rcvinfo
380 uint32_t rcv_context;
383 struct bio_dgram_sctp_prinfo
390 /* connect BIO stuff */
391 #define BIO_CONN_S_BEFORE 1
392 #define BIO_CONN_S_GET_IP 2
393 #define BIO_CONN_S_GET_PORT 3
394 #define BIO_CONN_S_CREATE_SOCKET 4
395 #define BIO_CONN_S_CONNECT 5
396 #define BIO_CONN_S_OK 6
397 #define BIO_CONN_S_BLOCKED_CONNECT 7
398 #define BIO_CONN_S_NBIO 8
399 /*#define BIO_CONN_get_param_hostname BIO_ctrl */
401 #define BIO_C_SET_CONNECT 100
402 #define BIO_C_DO_STATE_MACHINE 101
403 #define BIO_C_SET_NBIO 102
404 #define BIO_C_SET_PROXY_PARAM 103
405 #define BIO_C_SET_FD 104
406 #define BIO_C_GET_FD 105
407 #define BIO_C_SET_FILE_PTR 106
408 #define BIO_C_GET_FILE_PTR 107
409 #define BIO_C_SET_FILENAME 108
410 #define BIO_C_SET_SSL 109
411 #define BIO_C_GET_SSL 110
412 #define BIO_C_SET_MD 111
413 #define BIO_C_GET_MD 112
414 #define BIO_C_GET_CIPHER_STATUS 113
415 #define BIO_C_SET_BUF_MEM 114
416 #define BIO_C_GET_BUF_MEM_PTR 115
417 #define BIO_C_GET_BUFF_NUM_LINES 116
418 #define BIO_C_SET_BUFF_SIZE 117
419 #define BIO_C_SET_ACCEPT 118
420 #define BIO_C_SSL_MODE 119
421 #define BIO_C_GET_MD_CTX 120
422 #define BIO_C_GET_PROXY_PARAM 121
423 #define BIO_C_SET_BUFF_READ_DATA 122 /* data to read first */
424 #define BIO_C_GET_CONNECT 123
425 #define BIO_C_GET_ACCEPT 124
426 #define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125
427 #define BIO_C_GET_SSL_NUM_RENEGOTIATES 126
428 #define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127
429 #define BIO_C_FILE_SEEK 128
430 #define BIO_C_GET_CIPHER_CTX 129
431 #define BIO_C_SET_BUF_MEM_EOF_RETURN 130/*return end of input value*/
432 #define BIO_C_SET_BIND_MODE 131
433 #define BIO_C_GET_BIND_MODE 132
434 #define BIO_C_FILE_TELL 133
435 #define BIO_C_GET_SOCKS 134
436 #define BIO_C_SET_SOCKS 135
438 #define BIO_C_SET_WRITE_BUF_SIZE 136/* for BIO_s_bio */
439 #define BIO_C_GET_WRITE_BUF_SIZE 137
440 #define BIO_C_MAKE_BIO_PAIR 138
441 #define BIO_C_DESTROY_BIO_PAIR 139
442 #define BIO_C_GET_WRITE_GUARANTEE 140
443 #define BIO_C_GET_READ_REQUEST 141
444 #define BIO_C_SHUTDOWN_WR 142
445 #define BIO_C_NREAD0 143
446 #define BIO_C_NREAD 144
447 #define BIO_C_NWRITE0 145
448 #define BIO_C_NWRITE 146
449 #define BIO_C_RESET_READ_REQUEST 147
450 #define BIO_C_SET_MD_CTX 148
452 #define BIO_C_SET_PREFIX 149
453 #define BIO_C_GET_PREFIX 150
454 #define BIO_C_SET_SUFFIX 151
455 #define BIO_C_GET_SUFFIX 152
457 #define BIO_C_SET_EX_ARG 153
458 #define BIO_C_GET_EX_ARG 154
460 #define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,arg)
461 #define BIO_get_app_data(s) BIO_get_ex_data(s,0)
463 /* BIO_s_connect() and BIO_s_socks4a_connect() */
464 #define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name)
465 #define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port)
466 #define BIO_set_conn_ip(b,ip) BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip)
467 #define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port)
468 #define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0)
469 #define BIO_get_conn_port(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1)
470 #define BIO_get_conn_ip(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,2)
471 #define BIO_get_conn_int_port(b) BIO_int_ctrl(b,BIO_C_GET_CONNECT,3,0)
474 #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL)
476 /* BIO_s_accept_socket() */
477 #define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name)
478 #define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0)
479 /* #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */
480 #define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?(void *)"a":NULL)
481 #define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio)
483 #define BIO_BIND_NORMAL 0
484 #define BIO_BIND_REUSEADDR_IF_UNUSED 1
485 #define BIO_BIND_REUSEADDR 2
486 #define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL)
487 #define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL)
489 #define BIO_do_connect(b) BIO_do_handshake(b)
490 #define BIO_do_accept(b) BIO_do_handshake(b)
491 #define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL)
493 /* BIO_s_proxy_client() */
494 #define BIO_set_url(b,url) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url))
495 #define BIO_set_proxies(b,p) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p))
496 /* BIO_set_nbio(b,n) */
497 #define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s))
498 /* BIO *BIO_get_filter_bio(BIO *bio); */
499 #define BIO_set_proxy_cb(b,cb) BIO_callback_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(void *(*cb)()))
500 #define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk)
501 #define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool)
503 #define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp)
504 #define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p))
505 #define BIO_get_url(b,url) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url))
506 #define BIO_get_no_connect_return(b) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL)
508 #define BIO_set_fd(b,fd,c) BIO_int_ctrl(b,BIO_C_SET_FD,c,fd)
509 #define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c)
511 #define BIO_set_fp(b,fp,c) BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp)
512 #define BIO_get_fp(b,fpp) BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp)
514 #define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL)
515 #define BIO_tell(b) (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL)
517 /* name is cast to lose const, but might be better to route through a function
518 so we can do it safely */
520 /* If you are wondering why this isn't defined, its because CONST_STRICT is
521 * purely a compile-time kludge to allow const to be checked.
523 int BIO_read_filename(BIO *b,const char *name);
525 #define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
526 BIO_CLOSE|BIO_FP_READ,(char *)name)
528 #define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
529 BIO_CLOSE|BIO_FP_WRITE,name)
530 #define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
531 BIO_CLOSE|BIO_FP_APPEND,name)
532 #define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
533 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name)
535 /* WARNING WARNING, this ups the reference count on the read bio of the
536 * SSL structure. This is because the ssl read BIO is now pointed to by
537 * the next_bio field in the bio. So when you free the BIO, make sure
538 * you are doing a BIO_free_all() to catch the underlying BIO. */
539 #define BIO_set_ssl(b,ssl,c) BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl)
540 #define BIO_get_ssl(b,sslp) BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp)
541 #define BIO_set_ssl_mode(b,client) BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL)
542 #define BIO_set_ssl_renegotiate_bytes(b,num) \
543 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL);
544 #define BIO_get_num_renegotiates(b) \
545 BIO_ctrl(b,BIO_C_GET_SSL_NUM_RENEGOTIATES,0,NULL);
546 #define BIO_set_ssl_renegotiate_timeout(b,seconds) \
547 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL);
549 /* defined in evp.h */
550 /* #define BIO_set_md(b,md) BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */
552 #define BIO_get_mem_data(b,pp) BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp)
553 #define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm)
554 #define BIO_get_mem_ptr(b,pp) BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp)
555 #define BIO_set_mem_eof_return(b,v) \
556 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL)
558 /* For the BIO_f_buffer() type */
559 #define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL)
560 #define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL)
561 #define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0)
562 #define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1)
563 #define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf)
565 /* Don't use the next one unless you know what you are doing :-) */
566 #define BIO_dup_state(b,ret) BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret))
568 #define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL)
569 #define BIO_eof(b) (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL)
570 #define BIO_set_close(b,c) (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL)
571 #define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL)
572 #define BIO_pending(b) (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL)
573 #define BIO_wpending(b) (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL)
574 /* ...pending macros have inappropriate return type */
575 size_t BIO_ctrl_pending(BIO *b);
576 size_t BIO_ctrl_wpending(BIO *b);
577 #define BIO_flush(b) (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL)
578 #define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0, \
580 #define BIO_set_info_callback(b,cb) (int)BIO_callback_ctrl(b,BIO_CTRL_SET_CALLBACK,cb)
582 /* For the BIO_f_buffer() type */
583 #define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL)
585 /* For BIO_s_bio() */
586 #define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL)
587 #define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL)
588 #define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2)
589 #define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL)
590 #define BIO_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL)
591 /* macros with inappropriate type -- but ...pending macros use int too: */
592 #define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL)
593 #define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL)
594 size_t BIO_ctrl_get_write_guarantee(BIO *b);
595 size_t BIO_ctrl_get_read_request(BIO *b);
596 int BIO_ctrl_reset_read_request(BIO *b);
598 /* ctrl macros for dgram */
599 #define BIO_ctrl_dgram_connect(b,peer) \
600 (int)BIO_ctrl(b,BIO_CTRL_DGRAM_CONNECT,0, (char *)peer)
601 #define BIO_ctrl_set_connected(b, state, peer) \
602 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_CONNECTED, state, (char *)peer)
603 #define BIO_dgram_recv_timedout(b) \
604 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP, 0, NULL)
605 #define BIO_dgram_send_timedout(b) \
606 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP, 0, NULL)
607 #define BIO_dgram_get_peer(b,peer) \
608 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_PEER, 0, (char *)peer)
609 #define BIO_dgram_set_peer(b,peer) \
610 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, (char *)peer)
612 /* These two aren't currently implemented */
613 /* int BIO_get_ex_num(BIO *bio); */
614 /* void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)()); */
615 int BIO_set_ex_data(BIO *bio,int idx,void *data);
616 void *BIO_get_ex_data(BIO *bio,int idx);
617 int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
618 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
619 unsigned long BIO_number_read(BIO *bio);
620 unsigned long BIO_number_written(BIO *bio);
622 /* For BIO_f_asn1() */
623 int BIO_asn1_set_prefix(BIO *b, asn1_ps_func *prefix,
624 asn1_ps_func *prefix_free);
625 int BIO_asn1_get_prefix(BIO *b, asn1_ps_func **pprefix,
626 asn1_ps_func **pprefix_free);
627 int BIO_asn1_set_suffix(BIO *b, asn1_ps_func *suffix,
628 asn1_ps_func *suffix_free);
629 int BIO_asn1_get_suffix(BIO *b, asn1_ps_func **psuffix,
630 asn1_ps_func **psuffix_free);
632 # ifndef OPENSSL_NO_FP_API
633 BIO_METHOD *BIO_s_file(void );
634 BIO *BIO_new_file(const char *filename, const char *mode);
635 BIO *BIO_new_fp(FILE *stream, int close_flag);
636 # define BIO_s_file_internal BIO_s_file
638 BIO * BIO_new(BIO_METHOD *type);
639 int BIO_set(BIO *a,BIO_METHOD *type);
640 int BIO_free(BIO *a);
641 void BIO_vfree(BIO *a);
642 int BIO_read(BIO *b, void *data, int len);
643 int BIO_gets(BIO *bp,char *buf, int size);
644 int BIO_write(BIO *b, const void *data, int len);
645 int BIO_puts(BIO *bp,const char *buf);
646 int BIO_indent(BIO *b,int indent,int max);
647 long BIO_ctrl(BIO *bp,int cmd,long larg,void *parg);
648 long BIO_callback_ctrl(BIO *b, int cmd, void (*fp)(struct bio_st *, int, const char *, int, long, long));
649 char * BIO_ptr_ctrl(BIO *bp,int cmd,long larg);
650 long BIO_int_ctrl(BIO *bp,int cmd,long larg,int iarg);
651 BIO * BIO_push(BIO *b,BIO *append);
652 BIO * BIO_pop(BIO *b);
653 void BIO_free_all(BIO *a);
654 BIO * BIO_find_type(BIO *b,int bio_type);
655 BIO * BIO_next(BIO *b);
656 BIO * BIO_get_retry_BIO(BIO *bio, int *reason);
657 int BIO_get_retry_reason(BIO *bio);
658 BIO * BIO_dup_chain(BIO *in);
660 int BIO_nread0(BIO *bio, char **buf);
661 int BIO_nread(BIO *bio, char **buf, int num);
662 int BIO_nwrite0(BIO *bio, char **buf);
663 int BIO_nwrite(BIO *bio, char **buf, int num);
665 long BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi,
668 BIO_METHOD *BIO_s_mem(void);
669 BIO *BIO_new_mem_buf(void *buf, int len);
670 BIO_METHOD *BIO_s_socket(void);
671 BIO_METHOD *BIO_s_connect(void);
672 BIO_METHOD *BIO_s_accept(void);
673 BIO_METHOD *BIO_s_fd(void);
674 #ifndef OPENSSL_SYS_OS2
675 BIO_METHOD *BIO_s_log(void);
677 BIO_METHOD *BIO_s_bio(void);
678 BIO_METHOD *BIO_s_null(void);
679 BIO_METHOD *BIO_f_null(void);
680 BIO_METHOD *BIO_f_buffer(void);
681 #ifdef OPENSSL_SYS_VMS
682 BIO_METHOD *BIO_f_linebuffer(void);
684 BIO_METHOD *BIO_f_nbio_test(void);
685 #ifndef OPENSSL_NO_DGRAM
686 BIO_METHOD *BIO_s_datagram(void);
687 #ifndef OPENSSL_NO_SCTP
688 BIO_METHOD *BIO_s_datagram_sctp(void);
692 /* BIO_METHOD *BIO_f_ber(void); */
694 int BIO_sock_should_retry(int i);
695 int BIO_sock_non_fatal_error(int error);
696 int BIO_dgram_non_fatal_error(int error);
698 int BIO_fd_should_retry(int i);
699 int BIO_fd_non_fatal_error(int error);
700 int BIO_dump_cb(int (*cb)(const void *data, size_t len, void *u),
701 void *u, const char *s, int len);
702 int BIO_dump_indent_cb(int (*cb)(const void *data, size_t len, void *u),
703 void *u, const char *s, int len, int indent);
704 int BIO_dump(BIO *b,const char *bytes,int len);
705 int BIO_dump_indent(BIO *b,const char *bytes,int len,int indent);
706 #ifndef OPENSSL_NO_FP_API
707 int BIO_dump_fp(FILE *fp, const char *s, int len);
708 int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent);
710 struct hostent *BIO_gethostbyname(const char *name);
711 /* We might want a thread-safe interface too:
712 * struct hostent *BIO_gethostbyname_r(const char *name,
713 * struct hostent *result, void *buffer, size_t buflen);
714 * or something similar (caller allocates a struct hostent,
715 * pointed to by "result", and additional buffer space for the various
716 * substructures; if the buffer does not suffice, NULL is returned
717 * and an appropriate error code is set).
719 int BIO_sock_error(int sock);
720 int BIO_socket_ioctl(int fd, long type, void *arg);
721 int BIO_socket_nbio(int fd,int mode);
722 int BIO_get_port(const char *str, unsigned short *port_ptr);
723 int BIO_get_host_ip(const char *str, unsigned char *ip);
724 int BIO_get_accept_socket(char *host_port,int mode);
725 int BIO_accept(int sock,char **ip_port);
726 int BIO_sock_init(void );
727 void BIO_sock_cleanup(void);
728 int BIO_set_tcp_ndelay(int sock,int turn_on);
730 BIO *BIO_new_socket(int sock, int close_flag);
731 BIO *BIO_new_dgram(int fd, int close_flag);
732 #ifndef OPENSSL_NO_SCTP
733 BIO *BIO_new_dgram_sctp(int fd, int close_flag);
734 int BIO_dgram_is_sctp(BIO *bio);
735 int BIO_dgram_sctp_notification_cb(BIO *b,
736 void (*handle_notifications)(BIO *bio, void *context, void *buf),
738 int BIO_dgram_sctp_wait_for_dry(BIO *b);
739 int BIO_dgram_sctp_msg_waiting(BIO *b);
741 BIO *BIO_new_fd(int fd, int close_flag);
742 BIO *BIO_new_connect(char *host_port);
743 BIO *BIO_new_accept(char *host_port);
745 int BIO_new_bio_pair(BIO **bio1, size_t writebuf1,
746 BIO **bio2, size_t writebuf2);
747 /* If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints.
748 * Otherwise returns 0 and sets *bio1 and *bio2 to NULL.
749 * Size 0 uses default value.
752 void BIO_copy_next_retry(BIO *b);
754 /*long BIO_ghbn_ctrl(int cmd,int iarg,char *parg);*/
757 # define __bio_h__attr__ __attribute__
759 # define __bio_h__attr__(x)
761 int BIO_printf(BIO *bio, const char *format, ...)
762 __bio_h__attr__((__format__(__printf__,2,3)));
763 int BIO_vprintf(BIO *bio, const char *format, va_list args)
764 __bio_h__attr__((__format__(__printf__,2,0)));
765 int BIO_snprintf(char *buf, size_t n, const char *format, ...)
766 __bio_h__attr__((__format__(__printf__,3,4)));
767 int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args)
768 __bio_h__attr__((__format__(__printf__,3,0)));
769 #undef __bio_h__attr__
771 /* BEGIN ERROR CODES */
772 /* The following lines are auto generated by the script mkerr.pl. Any changes
773 * made after this point may be overwritten when the script is next run.
775 void ERR_load_BIO_strings(void);
777 /* Error codes for the BIO functions. */
779 /* Function codes. */
780 #define BIO_F_ACPT_STATE 100
781 #define BIO_F_BIO_ACCEPT 101
782 #define BIO_F_BIO_BER_GET_HEADER 102
783 #define BIO_F_BIO_CALLBACK_CTRL 131
784 #define BIO_F_BIO_CTRL 103
785 #define BIO_F_BIO_GETHOSTBYNAME 120
786 #define BIO_F_BIO_GETS 104
787 #define BIO_F_BIO_GET_ACCEPT_SOCKET 105
788 #define BIO_F_BIO_GET_HOST_IP 106
789 #define BIO_F_BIO_GET_PORT 107
790 #define BIO_F_BIO_MAKE_PAIR 121
791 #define BIO_F_BIO_NEW 108
792 #define BIO_F_BIO_NEW_FILE 109
793 #define BIO_F_BIO_NEW_MEM_BUF 126
794 #define BIO_F_BIO_NREAD 123
795 #define BIO_F_BIO_NREAD0 124
796 #define BIO_F_BIO_NWRITE 125
797 #define BIO_F_BIO_NWRITE0 122
798 #define BIO_F_BIO_PUTS 110
799 #define BIO_F_BIO_READ 111
800 #define BIO_F_BIO_SOCK_INIT 112
801 #define BIO_F_BIO_WRITE 113
802 #define BIO_F_BUFFER_CTRL 114
803 #define BIO_F_CONN_CTRL 127
804 #define BIO_F_CONN_STATE 115
805 #define BIO_F_DGRAM_SCTP_READ 132
806 #define BIO_F_FILE_CTRL 116
807 #define BIO_F_FILE_READ 130
808 #define BIO_F_LINEBUFFER_CTRL 129
809 #define BIO_F_MEM_READ 128
810 #define BIO_F_MEM_WRITE 117
811 #define BIO_F_SSL_NEW 118
812 #define BIO_F_WSASTARTUP 119
815 #define BIO_R_ACCEPT_ERROR 100
816 #define BIO_R_BAD_FOPEN_MODE 101
817 #define BIO_R_BAD_HOSTNAME_LOOKUP 102
818 #define BIO_R_BROKEN_PIPE 124
819 #define BIO_R_CONNECT_ERROR 103
820 #define BIO_R_EOF_ON_MEMORY_BIO 127
821 #define BIO_R_ERROR_SETTING_NBIO 104
822 #define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET 105
823 #define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET 106
824 #define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET 107
825 #define BIO_R_INVALID_ARGUMENT 125
826 #define BIO_R_INVALID_IP_ADDRESS 108
827 #define BIO_R_IN_USE 123
828 #define BIO_R_KEEPALIVE 109
829 #define BIO_R_NBIO_CONNECT_ERROR 110
830 #define BIO_R_NO_ACCEPT_PORT_SPECIFIED 111
831 #define BIO_R_NO_HOSTNAME_SPECIFIED 112
832 #define BIO_R_NO_PORT_DEFINED 113
833 #define BIO_R_NO_PORT_SPECIFIED 114
834 #define BIO_R_NO_SUCH_FILE 128
835 #define BIO_R_NULL_PARAMETER 115
836 #define BIO_R_TAG_MISMATCH 116
837 #define BIO_R_UNABLE_TO_BIND_SOCKET 117
838 #define BIO_R_UNABLE_TO_CREATE_SOCKET 118
839 #define BIO_R_UNABLE_TO_LISTEN_SOCKET 119
840 #define BIO_R_UNINITIALIZED 120
841 #define BIO_R_UNSUPPORTED_METHOD 121
842 #define BIO_R_WRITE_TO_READ_ONLY_BIO 126
843 #define BIO_R_WSASTARTUP 122