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.]
66 #include <openssl/crypto.h>
72 /* These are the 'types' of BIOs */
73 #define BIO_TYPE_NONE 0
74 #define BIO_TYPE_MEM (1|0x0400)
75 #define BIO_TYPE_FILE (2|0x0400)
77 #define BIO_TYPE_FD (4|0x0400|0x0100)
78 #define BIO_TYPE_SOCKET (5|0x0400|0x0100)
79 #define BIO_TYPE_NULL (6|0x0400)
80 #define BIO_TYPE_SSL (7|0x0200)
81 #define BIO_TYPE_MD (8|0x0200) /* passive filter */
82 #define BIO_TYPE_BUFFER (9|0x0200) /* filter */
83 #define BIO_TYPE_CIPHER (10|0x0200) /* filter */
84 #define BIO_TYPE_BASE64 (11|0x0200) /* filter */
85 #define BIO_TYPE_CONNECT (12|0x0400|0x0100) /* socket - connect */
86 #define BIO_TYPE_ACCEPT (13|0x0400|0x0100) /* socket for accept */
87 #define BIO_TYPE_PROXY_CLIENT (14|0x0200) /* client proxy BIO */
88 #define BIO_TYPE_PROXY_SERVER (15|0x0200) /* server proxy BIO */
89 #define BIO_TYPE_NBIO_TEST (16|0x0200) /* server proxy BIO */
90 #define BIO_TYPE_NULL_FILTER (17|0x0200)
91 #define BIO_TYPE_BER (18|0x0200) /* BER -> bin filter */
92 #define BIO_TYPE_BIO (19|0x0400) /* (half a) BIO pair */
94 #define BIO_TYPE_DESCRIPTOR 0x0100 /* socket, fd, connect or accept */
95 #define BIO_TYPE_FILTER 0x0200
96 #define BIO_TYPE_SOURCE_SINK 0x0400
98 /* BIO_FILENAME_READ|BIO_CLOSE to open or close on free.
99 * BIO_set_fp(in,stdin,BIO_NOCLOSE); */
100 #define BIO_NOCLOSE 0x00
101 #define BIO_CLOSE 0x01
103 /* These are used in the following macros and are passed to
105 #define BIO_CTRL_RESET 1 /* opt - rewind/zero etc */
106 #define BIO_CTRL_EOF 2 /* opt - are we at the eof */
107 #define BIO_CTRL_INFO 3 /* opt - extra tit-bits */
108 #define BIO_CTRL_SET 4 /* man - set the 'IO' type */
109 #define BIO_CTRL_GET 5 /* man - get the 'IO' type */
110 #define BIO_CTRL_PUSH 6 /* opt - internal, used to signify change */
111 #define BIO_CTRL_POP 7 /* opt - internal, used to signify change */
112 #define BIO_CTRL_GET_CLOSE 8 /* man - set the 'close' on free */
113 #define BIO_CTRL_SET_CLOSE 9 /* man - set the 'close' on free */
114 #define BIO_CTRL_PENDING 10 /* opt - is their more data buffered */
115 #define BIO_CTRL_FLUSH 11 /* opt - 'flush' buffered output */
116 #define BIO_CTRL_DUP 12 /* man - extra stuff for 'duped' BIO */
117 #define BIO_CTRL_WPENDING 13 /* opt - number of bytes still to write */
118 /* callback is int cb(BIO *bio,state,ret); */
119 #define BIO_CTRL_SET_CALLBACK 14 /* opt - set callback function */
120 #define BIO_CTRL_GET_CALLBACK 15 /* opt - set callback function */
122 #define BIO_CTRL_SET_FILENAME 30 /* BIO_s_file special */
125 #define BIO_FP_READ 0x02
126 #define BIO_FP_WRITE 0x04
127 #define BIO_FP_APPEND 0x08
128 #define BIO_FP_TEXT 0x10
130 #define BIO_FLAGS_READ 0x01
131 #define BIO_FLAGS_WRITE 0x02
132 #define BIO_FLAGS_IO_SPECIAL 0x04
133 #define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL)
134 #define BIO_FLAGS_SHOULD_RETRY 0x08
136 /* Used in BIO_gethostbyname() */
137 #define BIO_GHBN_CTRL_HITS 1
138 #define BIO_GHBN_CTRL_MISSES 2
139 #define BIO_GHBN_CTRL_CACHE_SIZE 3
140 #define BIO_GHBN_CTRL_GET_ENTRY 4
141 #define BIO_GHBN_CTRL_FLUSH 5
143 /* Mostly used in the SSL BIO */
145 * #define BIO_FLAGS_PROTOCOL_DELAYED_READ 0x10
146 * #define BIO_FLAGS_PROTOCOL_DELAYED_WRITE 0x20
147 * #define BIO_FLAGS_PROTOCOL_STARTUP 0x40
150 #define BIO_FLAGS_BASE64_NO_NL 0x100
152 /* This is used with memory BIOs: it means we shouldn't free up or change the
155 #define BIO_FLAGS_MEM_RDONLY 0x200
157 #define BIO_set_flags(b,f) ((b)->flags|=(f))
158 #define BIO_get_flags(b) ((b)->flags)
159 #define BIO_set_retry_special(b) \
160 ((b)->flags|=(BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY))
161 #define BIO_set_retry_read(b) \
162 ((b)->flags|=(BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY))
163 #define BIO_set_retry_write(b) \
164 ((b)->flags|=(BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY))
166 /* These are normally used internally in BIOs */
167 #define BIO_clear_flags(b,f) ((b)->flags&= ~(f))
168 #define BIO_clear_retry_flags(b) \
169 ((b)->flags&= ~(BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
170 #define BIO_get_retry_flags(b) \
171 ((b)->flags&(BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
173 /* These should be used by the application to tell why we should retry */
174 #define BIO_should_read(a) ((a)->flags & BIO_FLAGS_READ)
175 #define BIO_should_write(a) ((a)->flags & BIO_FLAGS_WRITE)
176 #define BIO_should_io_special(a) ((a)->flags & BIO_FLAGS_IO_SPECIAL)
177 #define BIO_retry_type(a) ((a)->flags & BIO_FLAGS_RWS)
178 #define BIO_should_retry(a) ((a)->flags & BIO_FLAGS_SHOULD_RETRY)
180 /* The next two are used in conjunction with the
181 * BIO_should_io_special() condition. After this returns true,
182 * BIO *BIO_get_retry_BIO(BIO *bio, int *reason); will walk the BIO
183 * stack and return the 'reason' for the special and the offending BIO.
184 * Given a BIO, BIO_get_retry_reason(bio) will return the code. */
185 /* Returned from the SSL bio when the certificate retrieval code had an error */
186 #define BIO_RR_SSL_X509_LOOKUP 0x01
187 /* Returned from the connect BIO when a connect would have blocked */
188 #define BIO_RR_CONNECT 0x02
190 /* These are passed by the BIO callback */
191 #define BIO_CB_FREE 0x01
192 #define BIO_CB_READ 0x02
193 #define BIO_CB_WRITE 0x03
194 #define BIO_CB_PUTS 0x04
195 #define BIO_CB_GETS 0x05
196 #define BIO_CB_CTRL 0x06
198 /* The callback is called before and after the underling operation,
199 * The BIO_CB_RETURN flag indicates if it is after the call */
200 #define BIO_CB_RETURN 0x80
201 #define BIO_CB_return(a) ((a)|BIO_CB_RETURN))
202 #define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN))
203 #define BIO_cb_post(a) ((a)&BIO_CB_RETURN)
205 #define BIO_set_callback(b,cb) ((b)->callback=(cb))
206 #define BIO_set_callback_arg(b,arg) ((b)->cb_arg=(char *)(arg))
207 #define BIO_get_callback_arg(b) ((b)->cb_arg)
208 #define BIO_get_callback(b) ((b)->callback)
209 #define BIO_method_name(b) ((b)->method->name)
210 #define BIO_method_type(b) ((b)->method->type)
212 typedef struct bio_st BIO;
214 typedef void bio_info_cb(struct bio_st *, int, const char *, int, long, long);
217 typedef struct bio_method_st
221 int (*bwrite)(BIO *, const char *, int);
222 int (*bread)(BIO *, char *, int);
223 int (*bputs)(BIO *, const char *);
224 int (*bgets)(BIO *, char *, int);
225 long (*ctrl)(BIO *, int, long, void *);
226 int (*create)(BIO *);
227 int (*destroy)(BIO *);
228 long (*callback_ctrl)(BIO *, int, bio_info_cb *);
231 typedef struct bio_method_st
235 int (_far *bwrite)();
240 int (_far *create)();
241 int (_far *destroy)();
242 long (_fat *callback_ctrl)();
249 /* bio, mode, argp, argi, argl, ret */
250 long (*callback)(struct bio_st *,int,const char *,int, long,long);
251 char *cb_arg; /* first argument for the callback */
255 int flags; /* extra storage */
259 struct bio_st *next_bio; /* used by filter BIOs */
260 struct bio_st *prev_bio; /* used by filter BIOs */
262 unsigned long num_read;
263 unsigned long num_write;
265 CRYPTO_EX_DATA ex_data;
268 DECLARE_STACK_OF(BIO)
270 typedef struct bio_f_buffer_ctx_struct
272 /* BIO *bio; */ /* this is now in the BIO struct */
273 int ibuf_size; /* how big is the input buffer */
274 int obuf_size; /* how big is the output buffer */
276 char *ibuf; /* the char array */
277 int ibuf_len; /* how many bytes are in it */
278 int ibuf_off; /* write/read offset */
280 char *obuf; /* the char array */
281 int obuf_len; /* how many bytes are in it */
282 int obuf_off; /* write/read offset */
285 /* connect BIO stuff */
286 #define BIO_CONN_S_BEFORE 1
287 #define BIO_CONN_S_GET_IP 2
288 #define BIO_CONN_S_GET_PORT 3
289 #define BIO_CONN_S_CREATE_SOCKET 4
290 #define BIO_CONN_S_CONNECT 5
291 #define BIO_CONN_S_OK 6
292 #define BIO_CONN_S_BLOCKED_CONNECT 7
293 #define BIO_CONN_S_NBIO 8
294 /*#define BIO_CONN_get_param_hostname BIO_ctrl */
296 #define BIO_C_SET_CONNECT 100
297 #define BIO_C_DO_STATE_MACHINE 101
298 #define BIO_C_SET_NBIO 102
299 #define BIO_C_SET_PROXY_PARAM 103
300 #define BIO_C_SET_FD 104
301 #define BIO_C_GET_FD 105
302 #define BIO_C_SET_FILE_PTR 106
303 #define BIO_C_GET_FILE_PTR 107
304 #define BIO_C_SET_FILENAME 108
305 #define BIO_C_SET_SSL 109
306 #define BIO_C_GET_SSL 110
307 #define BIO_C_SET_MD 111
308 #define BIO_C_GET_MD 112
309 #define BIO_C_GET_CIPHER_STATUS 113
310 #define BIO_C_SET_BUF_MEM 114
311 #define BIO_C_GET_BUF_MEM_PTR 115
312 #define BIO_C_GET_BUFF_NUM_LINES 116
313 #define BIO_C_SET_BUFF_SIZE 117
314 #define BIO_C_SET_ACCEPT 118
315 #define BIO_C_SSL_MODE 119
316 #define BIO_C_GET_MD_CTX 120
317 #define BIO_C_GET_PROXY_PARAM 121
318 #define BIO_C_SET_BUFF_READ_DATA 122 /* data to read first */
319 #define BIO_C_GET_CONNECT 123
320 #define BIO_C_GET_ACCEPT 124
321 #define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125
322 #define BIO_C_GET_SSL_NUM_RENEGOTIATES 126
323 #define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127
324 #define BIO_C_FILE_SEEK 128
325 #define BIO_C_GET_CIPHER_CTX 129
326 #define BIO_C_SET_BUF_MEM_EOF_RETURN 130/*return end of input value*/
327 #define BIO_C_SET_BIND_MODE 131
328 #define BIO_C_GET_BIND_MODE 132
329 #define BIO_C_FILE_TELL 133
330 #define BIO_C_GET_SOCKS 134
331 #define BIO_C_SET_SOCKS 135
333 #define BIO_C_SET_WRITE_BUF_SIZE 136/* for BIO_s_bio */
334 #define BIO_C_GET_WRITE_BUF_SIZE 137
335 #define BIO_C_MAKE_BIO_PAIR 138
336 #define BIO_C_DESTROY_BIO_PAIR 139
337 #define BIO_C_GET_WRITE_GUARANTEE 140
338 #define BIO_C_GET_READ_REQUEST 141
339 #define BIO_C_SHUTDOWN_WR 142
340 #define BIO_C_NREAD0 143
341 #define BIO_C_NREAD 144
342 #define BIO_C_NWRITE0 145
343 #define BIO_C_NWRITE 146
344 #define BIO_C_RESET_READ_REQUEST 147
347 #define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,arg)
348 #define BIO_get_app_data(s) BIO_get_ex_data(s,0)
350 /* BIO_s_connect() and BIO_s_socks4a_connect() */
351 #define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name)
352 #define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port)
353 #define BIO_set_conn_ip(b,ip) BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip)
354 #define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port)
355 #define BIO_get_conn_hostname(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0)
356 #define BIO_get_conn_port(b) BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1)
357 #define BIO_get_conn_ip(b,ip) BIO_ptr_ctrl(b,BIO_C_SET_CONNECT,2)
358 #define BIO_get_conn_int_port(b,port) BIO_int_ctrl(b,BIO_C_SET_CONNECT,3,port)
361 #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL)
363 /* BIO_s_accept_socket() */
364 #define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name)
365 #define BIO_get_accept_port(b) BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0)
366 /* #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */
367 #define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?"a":NULL)
368 #define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio)
370 #define BIO_BIND_NORMAL 0
371 #define BIO_BIND_REUSEADDR_IF_UNUSED 1
372 #define BIO_BIND_REUSEADDR 2
373 #define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL)
374 #define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL)
376 #define BIO_do_connect(b) BIO_do_handshake(b)
377 #define BIO_do_accept(b) BIO_do_handshake(b)
378 #define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL)
380 /* BIO_s_proxy_client() */
381 #define BIO_set_url(b,url) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url))
382 #define BIO_set_proxies(b,p) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p))
383 /* BIO_set_nbio(b,n) */
384 #define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s))
385 /* BIO *BIO_get_filter_bio(BIO *bio); */
386 #define BIO_set_proxy_cb(b,cb) BIO_callback_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(void *(*cb)()))
387 #define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk)
388 #define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool)
390 #define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp)
391 #define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p))
392 #define BIO_get_url(b,url) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url))
393 #define BIO_get_no_connect_return(b) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL)
395 #define BIO_set_fd(b,fd,c) BIO_int_ctrl(b,BIO_C_SET_FD,c,fd)
396 #define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c)
398 #define BIO_set_fp(b,fp,c) BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp)
399 #define BIO_get_fp(b,fpp) BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp)
401 #define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL)
402 #define BIO_tell(b) (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL)
404 /* name is cast to lose const, but might be better to route through a function
405 so we can do it safely */
407 /* If you are wondering why this isn't defined, its because CONST_STRICT is
408 * purely a compile-time kludge to allow const to be checked.
410 int BIO_read_filename(BIO *b,const char *name);
412 #define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
413 BIO_CLOSE|BIO_FP_READ,(char *)name)
415 #define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
416 BIO_CLOSE|BIO_FP_WRITE,name)
417 #define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
418 BIO_CLOSE|BIO_FP_APPEND,name)
419 #define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
420 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name)
422 /* WARNING WARNING, this ups the reference count on the read bio of the
423 * SSL structure. This is because the ssl read BIO is now pointed to by
424 * the next_bio field in the bio. So when you free the BIO, make sure
425 * you are doing a BIO_free_all() to catch the underlying BIO. */
426 #define BIO_set_ssl(b,ssl,c) BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl)
427 #define BIO_get_ssl(b,sslp) BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp)
428 #define BIO_set_ssl_mode(b,client) BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL)
429 #define BIO_set_ssl_renegotiate_bytes(b,num) \
430 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL);
431 #define BIO_get_num_renegotiates(b) \
432 BIO_ctrl(b,BIO_C_SET_SSL_NUM_RENEGOTIATES,0,NULL);
433 #define BIO_set_ssl_renegotiate_timeout(b,seconds) \
434 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL);
436 /* defined in evp.h */
437 /* #define BIO_set_md(b,md) BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */
439 #define BIO_get_mem_data(b,pp) BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp)
440 #define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm)
441 #define BIO_get_mem_ptr(b,pp) BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp)
442 #define BIO_set_mem_eof_return(b,v) \
443 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL)
445 /* For the BIO_f_buffer() type */
446 #define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL)
447 #define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL)
448 #define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0)
449 #define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1)
450 #define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf)
452 /* Don't use the next one unless you know what you are doing :-) */
453 #define BIO_dup_state(b,ret) BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret))
455 #define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL)
456 #define BIO_eof(b) (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL)
457 #define BIO_set_close(b,c) (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL)
458 #define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL)
459 #define BIO_pending(b) (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL)
460 #define BIO_wpending(b) (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL)
461 /* ...pending macros have inappropriate return type */
462 size_t BIO_ctrl_pending(BIO *b);
463 size_t BIO_ctrl_wpending(BIO *b);
464 #define BIO_flush(b) (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL)
465 #define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0,(bio_info_cb **)(cbp))
466 #define BIO_set_info_callback(b,cb) (int)BIO_callback_ctrl(b,BIO_CTRL_SET_CALLBACK,(bio_info_cb *)(cb))
468 /* For the BIO_f_buffer() type */
469 #define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL)
471 /* For BIO_s_bio() */
472 #define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL)
473 #define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL)
474 #define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2)
475 #define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL)
476 /* macros with inappropriate type -- but ...pending macros use int too: */
477 #define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL)
478 #define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL)
479 size_t BIO_ctrl_get_write_guarantee(BIO *b);
480 size_t BIO_ctrl_get_read_request(BIO *b);
481 int BIO_ctrl_reset_read_request(BIO *b);
483 /* These two aren't currently implemented */
484 /* int BIO_get_ex_num(BIO *bio); */
485 /* void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)()); */
486 int BIO_set_ex_data(BIO *bio,int idx,void *data);
487 void *BIO_get_ex_data(BIO *bio,int idx);
488 int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
489 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
490 unsigned long BIO_number_read(BIO *bio);
491 unsigned long BIO_number_written(BIO *bio);
494 # if defined(WIN16) && defined(_WINDLL)
495 BIO_METHOD *BIO_s_file_internal(void);
496 BIO *BIO_new_file_internal(char *filename, char *mode);
497 BIO *BIO_new_fp_internal(FILE *stream, int close_flag);
498 # define BIO_s_file BIO_s_file_internal
499 # define BIO_new_file BIO_new_file_internal
500 # define BIO_new_fp BIO_new_fp_internal
502 BIO_METHOD *BIO_s_file(void );
503 BIO *BIO_new_file(const char *filename, const char *mode);
504 BIO *BIO_new_fp(FILE *stream, int close_flag);
505 # define BIO_s_file_internal BIO_s_file
506 # define BIO_new_file_internal BIO_new_file
507 # define BIO_new_fp_internal BIO_s_file
510 BIO * BIO_new(BIO_METHOD *type);
511 int BIO_set(BIO *a,BIO_METHOD *type);
512 int BIO_free(BIO *a);
513 void BIO_vfree(BIO *a);
514 int BIO_read(BIO *b, void *data, int len);
515 int BIO_gets(BIO *bp,char *buf, int size);
516 int BIO_write(BIO *b, const void *data, int len);
517 int BIO_puts(BIO *bp,const char *buf);
518 long BIO_ctrl(BIO *bp,int cmd,long larg,void *parg);
519 long BIO_callback_ctrl(BIO *b, int cmd, void (*fp)(struct bio_st *, int, const char *, int, long, long));
520 char * BIO_ptr_ctrl(BIO *bp,int cmd,long larg);
521 long BIO_int_ctrl(BIO *bp,int cmd,long larg,int iarg);
522 BIO * BIO_push(BIO *b,BIO *append);
523 BIO * BIO_pop(BIO *b);
524 void BIO_free_all(BIO *a);
525 BIO * BIO_find_type(BIO *b,int bio_type);
526 BIO * BIO_get_retry_BIO(BIO *bio, int *reason);
527 int BIO_get_retry_reason(BIO *bio);
528 BIO * BIO_dup_chain(BIO *in);
530 int BIO_nread0(BIO *bio, char **buf);
531 int BIO_nread(BIO *bio, char **buf, int num);
532 int BIO_nwrite0(BIO *bio, char **buf);
533 int BIO_nwrite(BIO *bio, char **buf, int num);
536 long BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi,
539 long _far _loadds BIO_debug_callback(BIO *bio,int cmd,const char *argp,int argi,
543 BIO_METHOD *BIO_s_mem(void);
544 BIO *BIO_new_mem_buf(void *buf, int len);
545 BIO_METHOD *BIO_s_socket(void);
546 BIO_METHOD *BIO_s_connect(void);
547 BIO_METHOD *BIO_s_accept(void);
548 BIO_METHOD *BIO_s_fd(void);
549 BIO_METHOD *BIO_s_log(void);
550 BIO_METHOD *BIO_s_bio(void);
551 BIO_METHOD *BIO_s_null(void);
552 BIO_METHOD *BIO_f_null(void);
553 BIO_METHOD *BIO_f_buffer(void);
554 BIO_METHOD *BIO_f_nbio_test(void);
555 /* BIO_METHOD *BIO_f_ber(void); */
557 int BIO_sock_should_retry(int i);
558 int BIO_sock_non_fatal_error(int error);
559 int BIO_fd_should_retry(int i);
560 int BIO_fd_non_fatal_error(int error);
561 int BIO_dump(BIO *b,const char *bytes,int len);
562 int BIO_dump_indent(BIO *b,const char *bytes,int len,int indent);
564 struct hostent *BIO_gethostbyname(const char *name);
565 /* We might want a thread-safe interface too:
566 * struct hostent *BIO_gethostbyname_r(const char *name,
567 * struct hostent *result, void *buffer, size_t buflen);
568 * or something similar (caller allocates a struct hostent,
569 * pointed to by "result", and additional buffer space for the various
570 * substructures; if the buffer does not suffice, NULL is returned
571 * and an appropriate error code is set).
573 int BIO_sock_error(int sock);
574 int BIO_socket_ioctl(int fd, long type, unsigned long *arg);
575 int BIO_socket_nbio(int fd,int mode);
576 int BIO_get_port(const char *str, unsigned short *port_ptr);
577 int BIO_get_host_ip(const char *str, unsigned char *ip);
578 int BIO_get_accept_socket(char *host_port,int mode);
579 int BIO_accept(int sock,char **ip_port);
580 int BIO_sock_init(void );
581 void BIO_sock_cleanup(void);
582 int BIO_set_tcp_ndelay(int sock,int turn_on);
584 void ERR_load_BIO_strings(void );
586 BIO *BIO_new_socket(int sock, int close_flag);
587 BIO *BIO_new_fd(int fd, int close_flag);
588 BIO *BIO_new_connect(char *host_port);
589 BIO *BIO_new_accept(char *host_port);
591 int BIO_new_bio_pair(BIO **bio1, size_t writebuf1,
592 BIO **bio2, size_t writebuf2);
593 /* If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints.
594 * Otherwise returns 0 and sets *bio1 and *bio2 to NULL.
595 * Size 0 uses default value.
598 void BIO_copy_next_retry(BIO *b);
600 long BIO_ghbn_ctrl(int cmd,int iarg,char *parg);
602 int BIO_printf(BIO *bio, const char *format, ...);
603 int BIO_snprintf(char *buf, size_t n, const char *format, ...);
605 /* BEGIN ERROR CODES */
606 /* The following lines are auto generated by the script mkerr.pl. Any changes
607 * made after this point may be overwritten when the script is next run.
610 /* Error codes for the BIO functions. */
612 /* Function codes. */
613 #define BIO_F_ACPT_STATE 100
614 #define BIO_F_BIO_ACCEPT 101
615 #define BIO_F_BIO_BER_GET_HEADER 102
616 #define BIO_F_BIO_CTRL 103
617 #define BIO_F_BIO_GETHOSTBYNAME 120
618 #define BIO_F_BIO_GETS 104
619 #define BIO_F_BIO_GET_ACCEPT_SOCKET 105
620 #define BIO_F_BIO_GET_HOST_IP 106
621 #define BIO_F_BIO_GET_PORT 107
622 #define BIO_F_BIO_MAKE_PAIR 121
623 #define BIO_F_BIO_NEW 108
624 #define BIO_F_BIO_NEW_FILE 109
625 #define BIO_F_BIO_NEW_MEM_BUF 126
626 #define BIO_F_BIO_NREAD 123
627 #define BIO_F_BIO_NREAD0 124
628 #define BIO_F_BIO_NWRITE 125
629 #define BIO_F_BIO_NWRITE0 122
630 #define BIO_F_BIO_PUTS 110
631 #define BIO_F_BIO_READ 111
632 #define BIO_F_BIO_SOCK_INIT 112
633 #define BIO_F_BIO_WRITE 113
634 #define BIO_F_BUFFER_CTRL 114
635 #define BIO_F_CONN_CTRL 127
636 #define BIO_F_CONN_STATE 115
637 #define BIO_F_FILE_CTRL 116
638 #define BIO_F_MEM_WRITE 117
639 #define BIO_F_SSL_NEW 118
640 #define BIO_F_WSASTARTUP 119
643 #define BIO_R_ACCEPT_ERROR 100
644 #define BIO_R_BAD_FOPEN_MODE 101
645 #define BIO_R_BAD_HOSTNAME_LOOKUP 102
646 #define BIO_R_BROKEN_PIPE 124
647 #define BIO_R_CONNECT_ERROR 103
648 #define BIO_R_ERROR_SETTING_NBIO 104
649 #define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET 105
650 #define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET 106
651 #define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET 107
652 #define BIO_R_INVALID_ARGUMENT 125
653 #define BIO_R_INVALID_IP_ADDRESS 108
654 #define BIO_R_IN_USE 123
655 #define BIO_R_KEEPALIVE 109
656 #define BIO_R_NBIO_CONNECT_ERROR 110
657 #define BIO_R_NO_ACCEPT_PORT_SPECIFIED 111
658 #define BIO_R_NO_HOSTNAME_SPECIFIED 112
659 #define BIO_R_NO_PORT_DEFINED 113
660 #define BIO_R_NO_PORT_SPECIFIED 114
661 #define BIO_R_NULL_PARAMETER 115
662 #define BIO_R_TAG_MISMATCH 116
663 #define BIO_R_UNABLE_TO_BIND_SOCKET 117
664 #define BIO_R_UNABLE_TO_CREATE_SOCKET 118
665 #define BIO_R_UNABLE_TO_LISTEN_SOCKET 119
666 #define BIO_R_UNINITIALIZED 120
667 #define BIO_R_UNSUPPORTED_METHOD 121
668 #define BIO_R_WRITE_TO_READ_ONLY_BIO 126
669 #define BIO_R_WSASTARTUP 122
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