1 /* crypto/bio/bio.h */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young (eay@cryptsoft.com).
7  * The implementation was written so as to conform with Netscapes SSL.
8  *
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to.  The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15  *
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  *
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  *    notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  *    notice, this list of conditions and the following disclaimer in the
30  *    documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  *    must display the following acknowledgement:
33  *    "This product includes cryptographic software written by
34  *     Eric Young (eay@cryptsoft.com)"
35  *    The word 'cryptographic' can be left out if the rouines from the library
36  *    being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from
38  *    the apps directory (application code) you must include an acknowledgement:
39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40  *
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  *
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58 
59 #ifndef HEADER_BIO_H
60 # define HEADER_BIO_H
61 
62 # include <openssl/e_os2.h>
63 
64 # ifndef OPENSSL_NO_FP_API
65 #  include <stdio.h>
66 # endif
67 # include <stdarg.h>
68 
69 # include <openssl/crypto.h>
70 
71 # ifndef OPENSSL_NO_SCTP
72 #  ifndef OPENSSL_SYS_VMS
73 #   include <stdint.h>
74 #  else
75 #   include <inttypes.h>
76 #  endif
77 # endif
78 
79 #ifdef  __cplusplus
80 extern "C" {
81 #endif
82 
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)
87 
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)
108 # endif
109 # define BIO_TYPE_ASN1           (22|0x0200)/* filter */
110 # define BIO_TYPE_COMP           (23|0x0200)/* filter */
111 
112 # define BIO_TYPE_DESCRIPTOR     0x0100/* socket, fd, connect or accept */
113 # define BIO_TYPE_FILTER         0x0200
114 # define BIO_TYPE_SOURCE_SINK    0x0400
115 
116 /*
117  * BIO_FILENAME_READ|BIO_CLOSE to open or close on free.
118  * BIO_set_fp(in,stdin,BIO_NOCLOSE);
119  */
120 # define BIO_NOCLOSE             0x00
121 # define BIO_CLOSE               0x01
122 
123 /*
124  * These are used in the following macros and are passed to BIO_ctrl()
125  */
126 # define BIO_CTRL_RESET          1/* opt - rewind/zero etc */
127 # define BIO_CTRL_EOF            2/* opt - are we at the eof */
128 # define BIO_CTRL_INFO           3/* opt - extra tit-bits */
129 # define BIO_CTRL_SET            4/* man - set the 'IO' type */
130 # define BIO_CTRL_GET            5/* man - get the 'IO' type */
131 # define BIO_CTRL_PUSH           6/* opt - internal, used to signify change */
132 # define BIO_CTRL_POP            7/* opt - internal, used to signify change */
133 # define BIO_CTRL_GET_CLOSE      8/* man - set the 'close' on free */
134 # define BIO_CTRL_SET_CLOSE      9/* man - set the 'close' on free */
135 # define BIO_CTRL_PENDING        10/* opt - is their more data buffered */
136 # define BIO_CTRL_FLUSH          11/* opt - 'flush' buffered output */
137 # define BIO_CTRL_DUP            12/* man - extra stuff for 'duped' BIO */
138 # define BIO_CTRL_WPENDING       13/* opt - number of bytes still to write */
139 /* callback is int cb(BIO *bio,state,ret); */
140 # define BIO_CTRL_SET_CALLBACK   14/* opt - set callback function */
141 # define BIO_CTRL_GET_CALLBACK   15/* opt - set callback function */
142 
143 # define BIO_CTRL_SET_FILENAME   30/* BIO_s_file special */
144 
145 /* dgram BIO stuff */
146 # define BIO_CTRL_DGRAM_CONNECT       31/* BIO dgram special */
147 # define BIO_CTRL_DGRAM_SET_CONNECTED 32/* allow for an externally connected
148                                          * socket to be passed in */
149 # define BIO_CTRL_DGRAM_SET_RECV_TIMEOUT 33/* setsockopt, essentially */
150 # define BIO_CTRL_DGRAM_GET_RECV_TIMEOUT 34/* getsockopt, essentially */
151 # define BIO_CTRL_DGRAM_SET_SEND_TIMEOUT 35/* setsockopt, essentially */
152 # define BIO_CTRL_DGRAM_GET_SEND_TIMEOUT 36/* getsockopt, essentially */
153 
154 # define BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP 37/* flag whether the last */
155 # define BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP 38/* I/O operation tiemd out */
156 
157 /* #ifdef IP_MTU_DISCOVER */
158 # define BIO_CTRL_DGRAM_MTU_DISCOVER       39/* set DF bit on egress packets */
159 /* #endif */
160 
161 # define BIO_CTRL_DGRAM_QUERY_MTU          40/* as kernel for current MTU */
162 # define BIO_CTRL_DGRAM_GET_FALLBACK_MTU   47
163 # define BIO_CTRL_DGRAM_GET_MTU            41/* get cached value for MTU */
164 # define BIO_CTRL_DGRAM_SET_MTU            42/* set cached value for MTU.
165                                               * want to use this if asking
166                                               * the kernel fails */
167 
168 # define BIO_CTRL_DGRAM_MTU_EXCEEDED       43/* check whether the MTU was
169                                               * exceed in the previous write
170                                               * operation */
171 
172 # define BIO_CTRL_DGRAM_GET_PEER           46
173 # define BIO_CTRL_DGRAM_SET_PEER           44/* Destination for the data */
174 
175 # define BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT   45/* Next DTLS handshake timeout
176                                               * to adjust socket timeouts */
177 
178 # define BIO_CTRL_DGRAM_GET_MTU_OVERHEAD   49
179 
180 # ifndef OPENSSL_NO_SCTP
181 /* SCTP stuff */
182 #  define BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE    50
183 #  define BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY                51
184 #  define BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY               52
185 #  define BIO_CTRL_DGRAM_SCTP_AUTH_CCS_RCVD               53
186 #  define BIO_CTRL_DGRAM_SCTP_GET_SNDINFO         60
187 #  define BIO_CTRL_DGRAM_SCTP_SET_SNDINFO         61
188 #  define BIO_CTRL_DGRAM_SCTP_GET_RCVINFO         62
189 #  define BIO_CTRL_DGRAM_SCTP_SET_RCVINFO         63
190 #  define BIO_CTRL_DGRAM_SCTP_GET_PRINFO                  64
191 #  define BIO_CTRL_DGRAM_SCTP_SET_PRINFO                  65
192 #  define BIO_CTRL_DGRAM_SCTP_SAVE_SHUTDOWN               70
193 # endif
194 
195 /* modifiers */
196 # define BIO_FP_READ             0x02
197 # define BIO_FP_WRITE            0x04
198 # define BIO_FP_APPEND           0x08
199 # define BIO_FP_TEXT             0x10
200 
201 # define BIO_FLAGS_READ          0x01
202 # define BIO_FLAGS_WRITE         0x02
203 # define BIO_FLAGS_IO_SPECIAL    0x04
204 # define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL)
205 # define BIO_FLAGS_SHOULD_RETRY  0x08
206 # ifndef BIO_FLAGS_UPLINK
207 /*
208  * "UPLINK" flag denotes file descriptors provided by application. It
209  * defaults to 0, as most platforms don't require UPLINK interface.
210  */
211 #  define BIO_FLAGS_UPLINK        0
212 # endif
213 
214 /* Used in BIO_gethostbyname() */
215 # define BIO_GHBN_CTRL_HITS              1
216 # define BIO_GHBN_CTRL_MISSES            2
217 # define BIO_GHBN_CTRL_CACHE_SIZE        3
218 # define BIO_GHBN_CTRL_GET_ENTRY         4
219 # define BIO_GHBN_CTRL_FLUSH             5
220 
221 /* Mostly used in the SSL BIO */
222 /*-
223  * Not used anymore
224  * #define BIO_FLAGS_PROTOCOL_DELAYED_READ 0x10
225  * #define BIO_FLAGS_PROTOCOL_DELAYED_WRITE 0x20
226  * #define BIO_FLAGS_PROTOCOL_STARTUP   0x40
227  */
228 
229 # define BIO_FLAGS_BASE64_NO_NL  0x100
230 
231 /*
232  * This is used with memory BIOs: it means we shouldn't free up or change the
233  * data in any way.
234  */
235 # define BIO_FLAGS_MEM_RDONLY    0x200
236 
237 typedef struct bio_st BIO;
238 
239 void BIO_set_flags(BIO *b, int flags);
240 int BIO_test_flags(const BIO *b, int flags);
241 void BIO_clear_flags(BIO *b, int flags);
242 
243 # define BIO_get_flags(b) BIO_test_flags(b, ~(0x0))
244 # define BIO_set_retry_special(b) \
245                 BIO_set_flags(b, (BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY))
246 # define BIO_set_retry_read(b) \
247                 BIO_set_flags(b, (BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY))
248 # define BIO_set_retry_write(b) \
249                 BIO_set_flags(b, (BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY))
250 
251 /* These are normally used internally in BIOs */
252 # define BIO_clear_retry_flags(b) \
253                 BIO_clear_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
254 # define BIO_get_retry_flags(b) \
255                 BIO_test_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
256 
257 /* These should be used by the application to tell why we should retry */
258 # define BIO_should_read(a)              BIO_test_flags(a, BIO_FLAGS_READ)
259 # define BIO_should_write(a)             BIO_test_flags(a, BIO_FLAGS_WRITE)
260 # define BIO_should_io_special(a)        BIO_test_flags(a, BIO_FLAGS_IO_SPECIAL)
261 # define BIO_retry_type(a)               BIO_test_flags(a, BIO_FLAGS_RWS)
262 # define BIO_should_retry(a)             BIO_test_flags(a, BIO_FLAGS_SHOULD_RETRY)
263 
264 /*
265  * The next three are used in conjunction with the BIO_should_io_special()
266  * condition.  After this returns true, BIO *BIO_get_retry_BIO(BIO *bio, int
267  * *reason); will walk the BIO stack and return the 'reason' for the special
268  * and the offending BIO. Given a BIO, BIO_get_retry_reason(bio) will return
269  * the code.
270  */
271 /*
272  * Returned from the SSL bio when the certificate retrieval code had an error
273  */
274 # define BIO_RR_SSL_X509_LOOKUP          0x01
275 /* Returned from the connect BIO when a connect would have blocked */
276 # define BIO_RR_CONNECT                  0x02
277 /* Returned from the accept BIO when an accept would have blocked */
278 # define BIO_RR_ACCEPT                   0x03
279 
280 /* These are passed by the BIO callback */
281 # define BIO_CB_FREE     0x01
282 # define BIO_CB_READ     0x02
283 # define BIO_CB_WRITE    0x03
284 # define BIO_CB_PUTS     0x04
285 # define BIO_CB_GETS     0x05
286 # define BIO_CB_CTRL     0x06
287 
288 /*
289  * The callback is called before and after the underling operation, The
290  * BIO_CB_RETURN flag indicates if it is after the call
291  */
292 # define BIO_CB_RETURN   0x80
293 # define BIO_CB_return(a) ((a)|BIO_CB_RETURN)
294 # define BIO_cb_pre(a)   (!((a)&BIO_CB_RETURN))
295 # define BIO_cb_post(a)  ((a)&BIO_CB_RETURN)
296 
297 long (*BIO_get_callback(const BIO *b)) (struct bio_st *, int, const char *,
298                                         int, long, long);
299 void BIO_set_callback(BIO *b,
300                       long (*callback) (struct bio_st *, int, const char *,
301                                         int, long, long));
302 char *BIO_get_callback_arg(const BIO *b);
303 void BIO_set_callback_arg(BIO *b, char *arg);
304 
305 const char *BIO_method_name(const BIO *b);
306 int BIO_method_type(const BIO *b);
307 
308 typedef void bio_info_cb (struct bio_st *, int, const char *, int, long,
309                           long);
310 
311 typedef struct bio_method_st {
312     int type;
313     const char *name;
314     int (*bwrite) (BIO *, const char *, int);
315     int (*bread) (BIO *, char *, int);
316     int (*bputs) (BIO *, const char *);
317     int (*bgets) (BIO *, char *, int);
318     long (*ctrl) (BIO *, int, long, void *);
319     int (*create) (BIO *);
320     int (*destroy) (BIO *);
321     long (*callback_ctrl) (BIO *, int, bio_info_cb *);
322 } BIO_METHOD;
323 
324 struct bio_st {
325     BIO_METHOD *method;
326     /* bio, mode, argp, argi, argl, ret */
327     long (*callback) (struct bio_st *, int, const char *, int, long, long);
328     char *cb_arg;               /* first argument for the callback */
329     int init;
330     int shutdown;
331     int flags;                  /* extra storage */
332     int retry_reason;
333     int num;
334     void *ptr;
335     struct bio_st *next_bio;    /* used by filter BIOs */
336     struct bio_st *prev_bio;    /* used by filter BIOs */
337     int references;
338     unsigned long num_read;
339     unsigned long num_write;
340     CRYPTO_EX_DATA ex_data;
341 };
342 
343 DECLARE_STACK_OF(BIO)
344 
345 typedef struct bio_f_buffer_ctx_struct {
346     /*-
347      * Buffers are setup like this:
348      *
349      * <---------------------- size ----------------------->
350      * +---------------------------------------------------+
351      * | consumed | remaining          | free space        |
352      * +---------------------------------------------------+
353      * <-- off --><------- len ------->
354      */
355     /*- BIO *bio; *//*
356      * this is now in the BIO struct
357      */
358     int ibuf_size;              /* how big is the input buffer */
359     int obuf_size;              /* how big is the output buffer */
360     char *ibuf;                 /* the char array */
361     int ibuf_len;               /* how many bytes are in it */
362     int ibuf_off;               /* write/read offset */
363     char *obuf;                 /* the char array */
364     int obuf_len;               /* how many bytes are in it */
365     int obuf_off;               /* write/read offset */
366 } BIO_F_BUFFER_CTX;
367 
368 /* Prefix and suffix callback in ASN1 BIO */
369 typedef int asn1_ps_func (BIO *b, unsigned char **pbuf, int *plen,
370                           void *parg);
371 
372 # ifndef OPENSSL_NO_SCTP
373 /* SCTP parameter structs */
374 struct bio_dgram_sctp_sndinfo {
375     uint16_t snd_sid;
376     uint16_t snd_flags;
377     uint32_t snd_ppid;
378     uint32_t snd_context;
379 };
380 
381 struct bio_dgram_sctp_rcvinfo {
382     uint16_t rcv_sid;
383     uint16_t rcv_ssn;
384     uint16_t rcv_flags;
385     uint32_t rcv_ppid;
386     uint32_t rcv_tsn;
387     uint32_t rcv_cumtsn;
388     uint32_t rcv_context;
389 };
390 
391 struct bio_dgram_sctp_prinfo {
392     uint16_t pr_policy;
393     uint32_t pr_value;
394 };
395 # endif
396 
397 /* connect BIO stuff */
398 # define BIO_CONN_S_BEFORE               1
399 # define BIO_CONN_S_GET_IP               2
400 # define BIO_CONN_S_GET_PORT             3
401 # define BIO_CONN_S_CREATE_SOCKET        4
402 # define BIO_CONN_S_CONNECT              5
403 # define BIO_CONN_S_OK                   6
404 # define BIO_CONN_S_BLOCKED_CONNECT      7
405 # define BIO_CONN_S_NBIO                 8
406 /*
407  * #define BIO_CONN_get_param_hostname BIO_ctrl
408  */
409 
410 # define BIO_C_SET_CONNECT                       100
411 # define BIO_C_DO_STATE_MACHINE                  101
412 # define BIO_C_SET_NBIO                          102
413 # define BIO_C_SET_PROXY_PARAM                   103
414 # define BIO_C_SET_FD                            104
415 # define BIO_C_GET_FD                            105
416 # define BIO_C_SET_FILE_PTR                      106
417 # define BIO_C_GET_FILE_PTR                      107
418 # define BIO_C_SET_FILENAME                      108
419 # define BIO_C_SET_SSL                           109
420 # define BIO_C_GET_SSL                           110
421 # define BIO_C_SET_MD                            111
422 # define BIO_C_GET_MD                            112
423 # define BIO_C_GET_CIPHER_STATUS                 113
424 # define BIO_C_SET_BUF_MEM                       114
425 # define BIO_C_GET_BUF_MEM_PTR                   115
426 # define BIO_C_GET_BUFF_NUM_LINES                116
427 # define BIO_C_SET_BUFF_SIZE                     117
428 # define BIO_C_SET_ACCEPT                        118
429 # define BIO_C_SSL_MODE                          119
430 # define BIO_C_GET_MD_CTX                        120
431 # define BIO_C_GET_PROXY_PARAM                   121
432 # define BIO_C_SET_BUFF_READ_DATA                122/* data to read first */
433 # define BIO_C_GET_CONNECT                       123
434 # define BIO_C_GET_ACCEPT                        124
435 # define BIO_C_SET_SSL_RENEGOTIATE_BYTES         125
436 # define BIO_C_GET_SSL_NUM_RENEGOTIATES          126
437 # define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT       127
438 # define BIO_C_FILE_SEEK                         128
439 # define BIO_C_GET_CIPHER_CTX                    129
440 # define BIO_C_SET_BUF_MEM_EOF_RETURN            130/* return end of input
441                                                      * value */
442 # define BIO_C_SET_BIND_MODE                     131
443 # define BIO_C_GET_BIND_MODE                     132
444 # define BIO_C_FILE_TELL                         133
445 # define BIO_C_GET_SOCKS                         134
446 # define BIO_C_SET_SOCKS                         135
447 
448 # define BIO_C_SET_WRITE_BUF_SIZE                136/* for BIO_s_bio */
449 # define BIO_C_GET_WRITE_BUF_SIZE                137
450 # define BIO_C_MAKE_BIO_PAIR                     138
451 # define BIO_C_DESTROY_BIO_PAIR                  139
452 # define BIO_C_GET_WRITE_GUARANTEE               140
453 # define BIO_C_GET_READ_REQUEST                  141
454 # define BIO_C_SHUTDOWN_WR                       142
455 # define BIO_C_NREAD0                            143
456 # define BIO_C_NREAD                             144
457 # define BIO_C_NWRITE0                           145
458 # define BIO_C_NWRITE                            146
459 # define BIO_C_RESET_READ_REQUEST                147
460 # define BIO_C_SET_MD_CTX                        148
461 
462 # define BIO_C_SET_PREFIX                        149
463 # define BIO_C_GET_PREFIX                        150
464 # define BIO_C_SET_SUFFIX                        151
465 # define BIO_C_GET_SUFFIX                        152
466 
467 # define BIO_C_SET_EX_ARG                        153
468 # define BIO_C_GET_EX_ARG                        154
469 
470 # define BIO_set_app_data(s,arg)         BIO_set_ex_data(s,0,arg)
471 # define BIO_get_app_data(s)             BIO_get_ex_data(s,0)
472 
473 /* BIO_s_connect() and BIO_s_socks4a_connect() */
474 # define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0,(char *)name)
475 # define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1,(char *)port)
476 # define BIO_set_conn_ip(b,ip)     BIO_ctrl(b,BIO_C_SET_CONNECT,2,(char *)ip)
477 # define BIO_set_conn_int_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,3,(char *)port)
478 # define BIO_get_conn_hostname(b)  BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0)
479 # define BIO_get_conn_port(b)      BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1)
480 # define BIO_get_conn_ip(b)               BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,2)
481 # define BIO_get_conn_int_port(b) BIO_int_ctrl(b,BIO_C_GET_CONNECT,3,0)
482 
483 # define BIO_set_nbio(b,n)       BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL)
484 
485 /* BIO_s_accept_socket() */
486 # define BIO_set_accept_port(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0,(char *)name)
487 # define BIO_get_accept_port(b)  BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0)
488 /* #define BIO_set_nbio(b,n)    BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */
489 # define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,1,(n)?(void *)"a":NULL)
490 # define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(char *)bio)
491 
492 # define BIO_BIND_NORMAL                 0
493 # define BIO_BIND_REUSEADDR_IF_UNUSED    1
494 # define BIO_BIND_REUSEADDR              2
495 # define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL)
496 # define BIO_get_bind_mode(b,mode) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL)
497 
498 # define BIO_do_connect(b)       BIO_do_handshake(b)
499 # define BIO_do_accept(b)        BIO_do_handshake(b)
500 # define BIO_do_handshake(b)     BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL)
501 
502 /* BIO_s_proxy_client() */
503 # define BIO_set_url(b,url)      BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,0,(char *)(url))
504 # define BIO_set_proxies(b,p)    BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,1,(char *)(p))
505 /* BIO_set_nbio(b,n) */
506 # define BIO_set_filter_bio(b,s) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,2,(char *)(s))
507 /* BIO *BIO_get_filter_bio(BIO *bio); */
508 # define BIO_set_proxy_cb(b,cb) BIO_callback_ctrl(b,BIO_C_SET_PROXY_PARAM,3,(void *(*cb)()))
509 # define BIO_set_proxy_header(b,sk) BIO_ctrl(b,BIO_C_SET_PROXY_PARAM,4,(char *)sk)
510 # define BIO_set_no_connect_return(b,bool) BIO_int_ctrl(b,BIO_C_SET_PROXY_PARAM,5,bool)
511 
512 # define BIO_get_proxy_header(b,skp) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,0,(char *)skp)
513 # define BIO_get_proxies(b,pxy_p) BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,1,(char *)(pxy_p))
514 # define BIO_get_url(b,url)      BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,2,(char *)(url))
515 # define BIO_get_no_connect_return(b)    BIO_ctrl(b,BIO_C_GET_PROXY_PARAM,5,NULL)
516 
517 # define BIO_set_fd(b,fd,c)      BIO_int_ctrl(b,BIO_C_SET_FD,c,fd)
518 # define BIO_get_fd(b,c)         BIO_ctrl(b,BIO_C_GET_FD,0,(char *)c)
519 
520 # define BIO_set_fp(b,fp,c)      BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)fp)
521 # define BIO_get_fp(b,fpp)       BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)fpp)
522 
523 # define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL)
524 # define BIO_tell(b)     (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL)
525 
526 /*
527  * name is cast to lose const, but might be better to route through a
528  * function so we can do it safely
529  */
530 # ifdef CONST_STRICT
531 /*
532  * If you are wondering why this isn't defined, its because CONST_STRICT is
533  * purely a compile-time kludge to allow const to be checked.
534  */
535 int BIO_read_filename(BIO *b, const char *name);
536 # else
537 #  define BIO_read_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
538                 BIO_CLOSE|BIO_FP_READ,(char *)name)
539 # endif
540 # define BIO_write_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
541                 BIO_CLOSE|BIO_FP_WRITE,name)
542 # define BIO_append_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
543                 BIO_CLOSE|BIO_FP_APPEND,name)
544 # define BIO_rw_filename(b,name) BIO_ctrl(b,BIO_C_SET_FILENAME, \
545                 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name)
546 
547 /*
548  * WARNING WARNING, this ups the reference count on the read bio of the SSL
549  * structure.  This is because the ssl read BIO is now pointed to by the
550  * next_bio field in the bio.  So when you free the BIO, make sure you are
551  * doing a BIO_free_all() to catch the underlying BIO.
552  */
553 # define BIO_set_ssl(b,ssl,c)    BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)ssl)
554 # define BIO_get_ssl(b,sslp)     BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)sslp)
555 # define BIO_set_ssl_mode(b,client)      BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL)
556 # define BIO_set_ssl_renegotiate_bytes(b,num) \
557         BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL);
558 # define BIO_get_num_renegotiates(b) \
559         BIO_ctrl(b,BIO_C_GET_SSL_NUM_RENEGOTIATES,0,NULL);
560 # define BIO_set_ssl_renegotiate_timeout(b,seconds) \
561         BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL);
562 
563 /* defined in evp.h */
564 /* #define BIO_set_md(b,md)     BIO_ctrl(b,BIO_C_SET_MD,1,(char *)md) */
565 
566 # define BIO_get_mem_data(b,pp)  BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)pp)
567 # define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)bm)
568 # define BIO_get_mem_ptr(b,pp)   BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0,(char *)pp)
569 # define BIO_set_mem_eof_return(b,v) \
570                                 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL)
571 
572 /* For the BIO_f_buffer() type */
573 # define BIO_get_buffer_num_lines(b)     BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL)
574 # define BIO_set_buffer_size(b,size)     BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL)
575 # define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0)
576 # define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1)
577 # define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf)
578 
579 /* Don't use the next one unless you know what you are doing :-) */
580 # define BIO_dup_state(b,ret)    BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret))
581 
582 # define BIO_reset(b)            (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL)
583 # define BIO_eof(b)              (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL)
584 # define BIO_set_close(b,c)      (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL)
585 # define BIO_get_close(b)        (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL)
586 # define BIO_pending(b)          (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL)
587 # define BIO_wpending(b)         (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL)
588 /* ...pending macros have inappropriate return type */
589 size_t BIO_ctrl_pending(BIO *b);
590 size_t BIO_ctrl_wpending(BIO *b);
591 # define BIO_flush(b)            (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL)
592 # define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0, \
593                                                    cbp)
594 # define BIO_set_info_callback(b,cb) (int)BIO_callback_ctrl(b,BIO_CTRL_SET_CALLBACK,cb)
595 
596 /* For the BIO_f_buffer() type */
597 # define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL)
598 
599 /* For BIO_s_bio() */
600 # define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL)
601 # define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL)
602 # define BIO_make_bio_pair(b1,b2)   (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2)
603 # define BIO_destroy_bio_pair(b)    (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL)
604 # define BIO_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL)
605 /* macros with inappropriate type -- but ...pending macros use int too: */
606 # define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL)
607 # define BIO_get_read_request(b)    (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL)
608 size_t BIO_ctrl_get_write_guarantee(BIO *b);
609 size_t BIO_ctrl_get_read_request(BIO *b);
610 int BIO_ctrl_reset_read_request(BIO *b);
611 
612 /* ctrl macros for dgram */
613 # define BIO_ctrl_dgram_connect(b,peer)  \
614                      (int)BIO_ctrl(b,BIO_CTRL_DGRAM_CONNECT,0, (char *)peer)
615 # define BIO_ctrl_set_connected(b, state, peer) \
616          (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_CONNECTED, state, (char *)peer)
617 # define BIO_dgram_recv_timedout(b) \
618          (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP, 0, NULL)
619 # define BIO_dgram_send_timedout(b) \
620          (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP, 0, NULL)
621 # define BIO_dgram_get_peer(b,peer) \
622          (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_PEER, 0, (char *)peer)
623 # define BIO_dgram_set_peer(b,peer) \
624          (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, (char *)peer)
625 # define BIO_dgram_get_mtu_overhead(b) \
626          (unsigned int)BIO_ctrl((b), BIO_CTRL_DGRAM_GET_MTU_OVERHEAD, 0, NULL)
627 
628 /* These two aren't currently implemented */
629 /* int BIO_get_ex_num(BIO *bio); */
630 /* void BIO_set_ex_free_func(BIO *bio,int idx,void (*cb)()); */
631 int BIO_set_ex_data(BIO *bio, int idx, void *data);
632 void *BIO_get_ex_data(BIO *bio, int idx);
633 int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
634                          CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
635 unsigned long BIO_number_read(BIO *bio);
636 unsigned long BIO_number_written(BIO *bio);
637 
638 /* For BIO_f_asn1() */
639 int BIO_asn1_set_prefix(BIO *b, asn1_ps_func *prefix,
640                         asn1_ps_func *prefix_free);
641 int BIO_asn1_get_prefix(BIO *b, asn1_ps_func **pprefix,
642                         asn1_ps_func **pprefix_free);
643 int BIO_asn1_set_suffix(BIO *b, asn1_ps_func *suffix,
644                         asn1_ps_func *suffix_free);
645 int BIO_asn1_get_suffix(BIO *b, asn1_ps_func **psuffix,
646                         asn1_ps_func **psuffix_free);
647 
648 # ifndef OPENSSL_NO_FP_API
649 BIO_METHOD *BIO_s_file(void);
650 BIO *BIO_new_file(const char *filename, const char *mode);
651 BIO *BIO_new_fp(FILE *stream, int close_flag);
652 #  define BIO_s_file_internal    BIO_s_file
653 # endif
654 BIO *BIO_new(BIO_METHOD *type);
655 int BIO_set(BIO *a, BIO_METHOD *type);
656 int BIO_free(BIO *a);
657 void BIO_vfree(BIO *a);
658 int BIO_read(BIO *b, void *data, int len);
659 int BIO_gets(BIO *bp, char *buf, int size);
660 int BIO_write(BIO *b, const void *data, int len);
661 int BIO_puts(BIO *bp, const char *buf);
662 int BIO_indent(BIO *b, int indent, int max);
663 long BIO_ctrl(BIO *bp, int cmd, long larg, void *parg);
664 long BIO_callback_ctrl(BIO *b, int cmd,
665                        void (*fp) (struct bio_st *, int, const char *, int,
666                                    long, long));
667 char *BIO_ptr_ctrl(BIO *bp, int cmd, long larg);
668 long BIO_int_ctrl(BIO *bp, int cmd, long larg, int iarg);
669 BIO *BIO_push(BIO *b, BIO *append);
670 BIO *BIO_pop(BIO *b);
671 void BIO_free_all(BIO *a);
672 BIO *BIO_find_type(BIO *b, int bio_type);
673 BIO *BIO_next(BIO *b);
674 BIO *BIO_get_retry_BIO(BIO *bio, int *reason);
675 int BIO_get_retry_reason(BIO *bio);
676 BIO *BIO_dup_chain(BIO *in);
677 
678 int BIO_nread0(BIO *bio, char **buf);
679 int BIO_nread(BIO *bio, char **buf, int num);
680 int BIO_nwrite0(BIO *bio, char **buf);
681 int BIO_nwrite(BIO *bio, char **buf, int num);
682 
683 long BIO_debug_callback(BIO *bio, int cmd, const char *argp, int argi,
684                         long argl, long ret);
685 
686 BIO_METHOD *BIO_s_mem(void);
687 BIO *BIO_new_mem_buf(void *buf, int len);
688 BIO_METHOD *BIO_s_socket(void);
689 BIO_METHOD *BIO_s_connect(void);
690 BIO_METHOD *BIO_s_accept(void);
691 BIO_METHOD *BIO_s_fd(void);
692 # ifndef OPENSSL_SYS_OS2
693 BIO_METHOD *BIO_s_log(void);
694 # endif
695 BIO_METHOD *BIO_s_bio(void);
696 BIO_METHOD *BIO_s_null(void);
697 BIO_METHOD *BIO_f_null(void);
698 BIO_METHOD *BIO_f_buffer(void);
699 # ifdef OPENSSL_SYS_VMS
700 BIO_METHOD *BIO_f_linebuffer(void);
701 # endif
702 BIO_METHOD *BIO_f_nbio_test(void);
703 # ifndef OPENSSL_NO_DGRAM
704 BIO_METHOD *BIO_s_datagram(void);
705 #  ifndef OPENSSL_NO_SCTP
706 BIO_METHOD *BIO_s_datagram_sctp(void);
707 #  endif
708 # endif
709 
710 /* BIO_METHOD *BIO_f_ber(void); */
711 
712 int BIO_sock_should_retry(int i);
713 int BIO_sock_non_fatal_error(int error);
714 int BIO_dgram_non_fatal_error(int error);
715 
716 int BIO_fd_should_retry(int i);
717 int BIO_fd_non_fatal_error(int error);
718 int BIO_dump_cb(int (*cb) (const void *data, size_t len, void *u),
719                 void *u, const char *s, int len);
720 int BIO_dump_indent_cb(int (*cb) (const void *data, size_t len, void *u),
721                        void *u, const char *s, int len, int indent);
722 int BIO_dump(BIO *b, const char *bytes, int len);
723 int BIO_dump_indent(BIO *b, const char *bytes, int len, int indent);
724 # ifndef OPENSSL_NO_FP_API
725 int BIO_dump_fp(FILE *fp, const char *s, int len);
726 int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent);
727 # endif
728 struct hostent *BIO_gethostbyname(const char *name);
729 /*-
730  * We might want a thread-safe interface too:
731  * struct hostent *BIO_gethostbyname_r(const char *name,
732  *     struct hostent *result, void *buffer, size_t buflen);
733  * or something similar (caller allocates a struct hostent,
734  * pointed to by "result", and additional buffer space for the various
735  * substructures; if the buffer does not suffice, NULL is returned
736  * and an appropriate error code is set).
737  */
738 int BIO_sock_error(int sock);
739 int BIO_socket_ioctl(int fd, long type, void *arg);
740 int BIO_socket_nbio(int fd, int mode);
741 int BIO_get_port(const char *str, unsigned short *port_ptr);
742 int BIO_get_host_ip(const char *str, unsigned char *ip);
743 int BIO_get_accept_socket(char *host_port, int mode);
744 int BIO_accept(int sock, char **ip_port);
745 int BIO_sock_init(void);
746 void BIO_sock_cleanup(void);
747 int BIO_set_tcp_ndelay(int sock, int turn_on);
748 
749 BIO *BIO_new_socket(int sock, int close_flag);
750 BIO *BIO_new_dgram(int fd, int close_flag);
751 # ifndef OPENSSL_NO_SCTP
752 BIO *BIO_new_dgram_sctp(int fd, int close_flag);
753 int BIO_dgram_is_sctp(BIO *bio);
754 int BIO_dgram_sctp_notification_cb(BIO *b,
755                                    void (*handle_notifications) (BIO *bio,
756                                                                  void
757                                                                  *context,
758                                                                  void *buf),
759                                    void *context);
760 int BIO_dgram_sctp_wait_for_dry(BIO *b);
761 int BIO_dgram_sctp_msg_waiting(BIO *b);
762 # endif
763 BIO *BIO_new_fd(int fd, int close_flag);
764 BIO *BIO_new_connect(char *host_port);
765 BIO *BIO_new_accept(char *host_port);
766 
767 int BIO_new_bio_pair(BIO **bio1, size_t writebuf1,
768                      BIO **bio2, size_t writebuf2);
769 /*
770  * If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints.
771  * Otherwise returns 0 and sets *bio1 and *bio2 to NULL. Size 0 uses default
772  * value.
773  */
774 
775 void BIO_copy_next_retry(BIO *b);
776 
777 /*
778  * long BIO_ghbn_ctrl(int cmd,int iarg,char *parg);
779  */
780 
781 # ifdef __GNUC__
782 #  define __bio_h__attr__ __attribute__
783 # else
784 #  define __bio_h__attr__(x)
785 # endif
786 int BIO_printf(BIO *bio, const char *format, ...)
787 __bio_h__attr__((__format__(__printf__, 2, 3)));
788 int BIO_vprintf(BIO *bio, const char *format, va_list args)
789 __bio_h__attr__((__format__(__printf__, 2, 0)));
790 int BIO_snprintf(char *buf, size_t n, const char *format, ...)
791 __bio_h__attr__((__format__(__printf__, 3, 4)));
792 int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args)
793 __bio_h__attr__((__format__(__printf__, 3, 0)));
794 # undef __bio_h__attr__
795 
796 /* BEGIN ERROR CODES */
797 /*
798  * The following lines are auto generated by the script mkerr.pl. Any changes
799  * made after this point may be overwritten when the script is next run.
800  */
801 void ERR_load_BIO_strings(void);
802 
803 /* Error codes for the BIO functions. */
804 
805 /* Function codes. */
806 # define BIO_F_ACPT_STATE                                 100
807 # define BIO_F_BIO_ACCEPT                                 101
808 # define BIO_F_BIO_BER_GET_HEADER                         102
809 # define BIO_F_BIO_CALLBACK_CTRL                          131
810 # define BIO_F_BIO_CTRL                                   103
811 # define BIO_F_BIO_GETHOSTBYNAME                          120
812 # define BIO_F_BIO_GETS                                   104
813 # define BIO_F_BIO_GET_ACCEPT_SOCKET                      105
814 # define BIO_F_BIO_GET_HOST_IP                            106
815 # define BIO_F_BIO_GET_PORT                               107
816 # define BIO_F_BIO_MAKE_PAIR                              121
817 # define BIO_F_BIO_NEW                                    108
818 # define BIO_F_BIO_NEW_FILE                               109
819 # define BIO_F_BIO_NEW_MEM_BUF                            126
820 # define BIO_F_BIO_NREAD                                  123
821 # define BIO_F_BIO_NREAD0                                 124
822 # define BIO_F_BIO_NWRITE                                 125
823 # define BIO_F_BIO_NWRITE0                                122
824 # define BIO_F_BIO_PUTS                                   110
825 # define BIO_F_BIO_READ                                   111
826 # define BIO_F_BIO_SOCK_INIT                              112
827 # define BIO_F_BIO_WRITE                                  113
828 # define BIO_F_BUFFER_CTRL                                114
829 # define BIO_F_CONN_CTRL                                  127
830 # define BIO_F_CONN_STATE                                 115
831 # define BIO_F_DGRAM_SCTP_READ                            132
832 # define BIO_F_DGRAM_SCTP_WRITE                           133
833 # define BIO_F_FILE_CTRL                                  116
834 # define BIO_F_FILE_READ                                  130
835 # define BIO_F_LINEBUFFER_CTRL                            129
836 # define BIO_F_MEM_READ                                   128
837 # define BIO_F_MEM_WRITE                                  117
838 # define BIO_F_SSL_NEW                                    118
839 # define BIO_F_WSASTARTUP                                 119
840 
841 /* Reason codes. */
842 # define BIO_R_ACCEPT_ERROR                               100
843 # define BIO_R_BAD_FOPEN_MODE                             101
844 # define BIO_R_BAD_HOSTNAME_LOOKUP                        102
845 # define BIO_R_BROKEN_PIPE                                124
846 # define BIO_R_CONNECT_ERROR                              103
847 # define BIO_R_EOF_ON_MEMORY_BIO                          127
848 # define BIO_R_ERROR_SETTING_NBIO                         104
849 # define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET      105
850 # define BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET        106
851 # define BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET          107
852 # define BIO_R_INVALID_ARGUMENT                           125
853 # define BIO_R_INVALID_IP_ADDRESS                         108
854 # define BIO_R_IN_USE                                     123
855 # define BIO_R_KEEPALIVE                                  109
856 # define BIO_R_NBIO_CONNECT_ERROR                         110
857 # define BIO_R_NO_ACCEPT_PORT_SPECIFIED                   111
858 # define BIO_R_NO_HOSTNAME_SPECIFIED                      112
859 # define BIO_R_NO_PORT_DEFINED                            113
860 # define BIO_R_NO_PORT_SPECIFIED                          114
861 # define BIO_R_NO_SUCH_FILE                               128
862 # define BIO_R_NULL_PARAMETER                             115
863 # define BIO_R_TAG_MISMATCH                               116
864 # define BIO_R_UNABLE_TO_BIND_SOCKET                      117
865 # define BIO_R_UNABLE_TO_CREATE_SOCKET                    118
866 # define BIO_R_UNABLE_TO_LISTEN_SOCKET                    119
867 # define BIO_R_UNINITIALIZED                              120
868 # define BIO_R_UNSUPPORTED_METHOD                         121
869 # define BIO_R_WRITE_TO_READ_ONLY_BIO                     126
870 # define BIO_R_WSASTARTUP                                 122
871 
872 #ifdef  __cplusplus
873 }
874 #endif
875 #endif
876