2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
13 # include <openssl/e_os2.h>
15 # ifndef OPENSSL_NO_STDIO
20 # include <openssl/crypto.h>
21 # include <openssl/bioerr.h>
23 # ifndef OPENSSL_NO_SCTP
24 # include <openssl/e_os2.h>
31 /* There are the classes of BIOs */
32 # define BIO_TYPE_DESCRIPTOR 0x0100 /* socket, fd, connect or accept */
33 # define BIO_TYPE_FILTER 0x0200
34 # define BIO_TYPE_SOURCE_SINK 0x0400
36 /* These are the 'types' of BIOs */
37 # define BIO_TYPE_NONE 0
38 # define BIO_TYPE_MEM ( 1|BIO_TYPE_SOURCE_SINK)
39 # define BIO_TYPE_FILE ( 2|BIO_TYPE_SOURCE_SINK)
41 # define BIO_TYPE_FD ( 4|BIO_TYPE_SOURCE_SINK|BIO_TYPE_DESCRIPTOR)
42 # define BIO_TYPE_SOCKET ( 5|BIO_TYPE_SOURCE_SINK|BIO_TYPE_DESCRIPTOR)
43 # define BIO_TYPE_NULL ( 6|BIO_TYPE_SOURCE_SINK)
44 # define BIO_TYPE_SSL ( 7|BIO_TYPE_FILTER)
45 # define BIO_TYPE_MD ( 8|BIO_TYPE_FILTER)
46 # define BIO_TYPE_BUFFER ( 9|BIO_TYPE_FILTER)
47 # define BIO_TYPE_CIPHER (10|BIO_TYPE_FILTER)
48 # define BIO_TYPE_BASE64 (11|BIO_TYPE_FILTER)
49 # define BIO_TYPE_CONNECT (12|BIO_TYPE_SOURCE_SINK|BIO_TYPE_DESCRIPTOR)
50 # define BIO_TYPE_ACCEPT (13|BIO_TYPE_SOURCE_SINK|BIO_TYPE_DESCRIPTOR)
52 # define BIO_TYPE_NBIO_TEST (16|BIO_TYPE_FILTER)/* server proxy BIO */
53 # define BIO_TYPE_NULL_FILTER (17|BIO_TYPE_FILTER)
54 # define BIO_TYPE_BIO (19|BIO_TYPE_SOURCE_SINK)/* half a BIO pair */
55 # define BIO_TYPE_LINEBUFFER (20|BIO_TYPE_FILTER)
56 # define BIO_TYPE_DGRAM (21|BIO_TYPE_SOURCE_SINK|BIO_TYPE_DESCRIPTOR)
57 # define BIO_TYPE_ASN1 (22|BIO_TYPE_FILTER)
58 # define BIO_TYPE_COMP (23|BIO_TYPE_FILTER)
59 # ifndef OPENSSL_NO_SCTP
60 # define BIO_TYPE_DGRAM_SCTP (24|BIO_TYPE_SOURCE_SINK|BIO_TYPE_DESCRIPTOR)
63 #define BIO_TYPE_START 128
66 * BIO_FILENAME_READ|BIO_CLOSE to open or close on free.
67 * BIO_set_fp(in,stdin,BIO_NOCLOSE);
69 # define BIO_NOCLOSE 0x00
70 # define BIO_CLOSE 0x01
73 * These are used in the following macros and are passed to BIO_ctrl()
75 # define BIO_CTRL_RESET 1/* opt - rewind/zero etc */
76 # define BIO_CTRL_EOF 2/* opt - are we at the eof */
77 # define BIO_CTRL_INFO 3/* opt - extra tit-bits */
78 # define BIO_CTRL_SET 4/* man - set the 'IO' type */
79 # define BIO_CTRL_GET 5/* man - get the 'IO' type */
80 # define BIO_CTRL_PUSH 6/* opt - internal, used to signify change */
81 # define BIO_CTRL_POP 7/* opt - internal, used to signify change */
82 # define BIO_CTRL_GET_CLOSE 8/* man - set the 'close' on free */
83 # define BIO_CTRL_SET_CLOSE 9/* man - set the 'close' on free */
84 # define BIO_CTRL_PENDING 10/* opt - is their more data buffered */
85 # define BIO_CTRL_FLUSH 11/* opt - 'flush' buffered output */
86 # define BIO_CTRL_DUP 12/* man - extra stuff for 'duped' BIO */
87 # define BIO_CTRL_WPENDING 13/* opt - number of bytes still to write */
88 # define BIO_CTRL_SET_CALLBACK 14/* opt - set callback function */
89 # define BIO_CTRL_GET_CALLBACK 15/* opt - set callback function */
91 # define BIO_CTRL_SET_FILENAME 30/* BIO_s_file special */
94 # define BIO_CTRL_DGRAM_CONNECT 31/* BIO dgram special */
95 # define BIO_CTRL_DGRAM_SET_CONNECTED 32/* allow for an externally connected
96 * socket to be passed in */
97 # define BIO_CTRL_DGRAM_SET_RECV_TIMEOUT 33/* setsockopt, essentially */
98 # define BIO_CTRL_DGRAM_GET_RECV_TIMEOUT 34/* getsockopt, essentially */
99 # define BIO_CTRL_DGRAM_SET_SEND_TIMEOUT 35/* setsockopt, essentially */
100 # define BIO_CTRL_DGRAM_GET_SEND_TIMEOUT 36/* getsockopt, essentially */
102 # define BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP 37/* flag whether the last */
103 # define BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP 38/* I/O operation tiemd out */
105 /* #ifdef IP_MTU_DISCOVER */
106 # define BIO_CTRL_DGRAM_MTU_DISCOVER 39/* set DF bit on egress packets */
109 # define BIO_CTRL_DGRAM_QUERY_MTU 40/* as kernel for current MTU */
110 # define BIO_CTRL_DGRAM_GET_FALLBACK_MTU 47
111 # define BIO_CTRL_DGRAM_GET_MTU 41/* get cached value for MTU */
112 # define BIO_CTRL_DGRAM_SET_MTU 42/* set cached value for MTU.
113 * want to use this if asking
114 * the kernel fails */
116 # define BIO_CTRL_DGRAM_MTU_EXCEEDED 43/* check whether the MTU was
117 * exceed in the previous write
120 # define BIO_CTRL_DGRAM_GET_PEER 46
121 # define BIO_CTRL_DGRAM_SET_PEER 44/* Destination for the data */
123 # define BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT 45/* Next DTLS handshake timeout
124 * to adjust socket timeouts */
125 # define BIO_CTRL_DGRAM_SET_DONT_FRAG 48
127 # define BIO_CTRL_DGRAM_GET_MTU_OVERHEAD 49
129 # define BIO_CTRL_DGRAM_SET_PEEK_MODE 50
131 # ifndef OPENSSL_NO_SCTP
133 # define BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE 50
134 # define BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY 51
135 # define BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY 52
136 # define BIO_CTRL_DGRAM_SCTP_AUTH_CCS_RCVD 53
137 # define BIO_CTRL_DGRAM_SCTP_GET_SNDINFO 60
138 # define BIO_CTRL_DGRAM_SCTP_SET_SNDINFO 61
139 # define BIO_CTRL_DGRAM_SCTP_GET_RCVINFO 62
140 # define BIO_CTRL_DGRAM_SCTP_SET_RCVINFO 63
141 # define BIO_CTRL_DGRAM_SCTP_GET_PRINFO 64
142 # define BIO_CTRL_DGRAM_SCTP_SET_PRINFO 65
143 # define BIO_CTRL_DGRAM_SCTP_SAVE_SHUTDOWN 70
147 # define BIO_FP_READ 0x02
148 # define BIO_FP_WRITE 0x04
149 # define BIO_FP_APPEND 0x08
150 # define BIO_FP_TEXT 0x10
152 # define BIO_FLAGS_READ 0x01
153 # define BIO_FLAGS_WRITE 0x02
154 # define BIO_FLAGS_IO_SPECIAL 0x04
155 # define BIO_FLAGS_RWS (BIO_FLAGS_READ|BIO_FLAGS_WRITE|BIO_FLAGS_IO_SPECIAL)
156 # define BIO_FLAGS_SHOULD_RETRY 0x08
157 # ifndef BIO_FLAGS_UPLINK
159 * "UPLINK" flag denotes file descriptors provided by application. It
160 * defaults to 0, as most platforms don't require UPLINK interface.
162 # define BIO_FLAGS_UPLINK 0
165 # define BIO_FLAGS_BASE64_NO_NL 0x100
168 * This is used with memory BIOs:
169 * BIO_FLAGS_MEM_RDONLY means we shouldn't free up or change the data in any way;
170 * BIO_FLAGS_NONCLEAR_RST means we shouldn't clear data on reset.
172 # define BIO_FLAGS_MEM_RDONLY 0x200
173 # define BIO_FLAGS_NONCLEAR_RST 0x400
175 typedef union bio_addr_st BIO_ADDR;
176 typedef struct bio_addrinfo_st BIO_ADDRINFO;
178 int BIO_get_new_index(void);
179 void BIO_set_flags(BIO *b, int flags);
180 int BIO_test_flags(const BIO *b, int flags);
181 void BIO_clear_flags(BIO *b, int flags);
183 # define BIO_get_flags(b) BIO_test_flags(b, ~(0x0))
184 # define BIO_set_retry_special(b) \
185 BIO_set_flags(b, (BIO_FLAGS_IO_SPECIAL|BIO_FLAGS_SHOULD_RETRY))
186 # define BIO_set_retry_read(b) \
187 BIO_set_flags(b, (BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY))
188 # define BIO_set_retry_write(b) \
189 BIO_set_flags(b, (BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY))
191 /* These are normally used internally in BIOs */
192 # define BIO_clear_retry_flags(b) \
193 BIO_clear_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
194 # define BIO_get_retry_flags(b) \
195 BIO_test_flags(b, (BIO_FLAGS_RWS|BIO_FLAGS_SHOULD_RETRY))
197 /* These should be used by the application to tell why we should retry */
198 # define BIO_should_read(a) BIO_test_flags(a, BIO_FLAGS_READ)
199 # define BIO_should_write(a) BIO_test_flags(a, BIO_FLAGS_WRITE)
200 # define BIO_should_io_special(a) BIO_test_flags(a, BIO_FLAGS_IO_SPECIAL)
201 # define BIO_retry_type(a) BIO_test_flags(a, BIO_FLAGS_RWS)
202 # define BIO_should_retry(a) BIO_test_flags(a, BIO_FLAGS_SHOULD_RETRY)
205 * The next three are used in conjunction with the BIO_should_io_special()
206 * condition. After this returns true, BIO *BIO_get_retry_BIO(BIO *bio, int
207 * *reason); will walk the BIO stack and return the 'reason' for the special
208 * and the offending BIO. Given a BIO, BIO_get_retry_reason(bio) will return
212 * Returned from the SSL bio when the certificate retrieval code had an error
214 # define BIO_RR_SSL_X509_LOOKUP 0x01
215 /* Returned from the connect BIO when a connect would have blocked */
216 # define BIO_RR_CONNECT 0x02
217 /* Returned from the accept BIO when an accept would have blocked */
218 # define BIO_RR_ACCEPT 0x03
220 /* These are passed by the BIO callback */
221 # define BIO_CB_FREE 0x01
222 # define BIO_CB_READ 0x02
223 # define BIO_CB_WRITE 0x03
224 # define BIO_CB_PUTS 0x04
225 # define BIO_CB_GETS 0x05
226 # define BIO_CB_CTRL 0x06
229 * The callback is called before and after the underling operation, The
230 * BIO_CB_RETURN flag indicates if it is after the call
232 # define BIO_CB_RETURN 0x80
233 # define BIO_CB_return(a) ((a)|BIO_CB_RETURN)
234 # define BIO_cb_pre(a) (!((a)&BIO_CB_RETURN))
235 # define BIO_cb_post(a) ((a)&BIO_CB_RETURN)
237 typedef long (*BIO_callback_fn)(BIO *b, int oper, const char *argp, int argi,
238 long argl, long ret);
239 typedef long (*BIO_callback_fn_ex)(BIO *b, int oper, const char *argp,
240 size_t len, int argi,
241 long argl, int ret, size_t *processed);
242 BIO_callback_fn BIO_get_callback(const BIO *b);
243 void BIO_set_callback(BIO *b, BIO_callback_fn callback);
245 BIO_callback_fn_ex BIO_get_callback_ex(const BIO *b);
246 void BIO_set_callback_ex(BIO *b, BIO_callback_fn_ex callback);
248 char *BIO_get_callback_arg(const BIO *b);
249 void BIO_set_callback_arg(BIO *b, char *arg);
251 typedef struct bio_method_st BIO_METHOD;
253 const char *BIO_method_name(const BIO *b);
254 int BIO_method_type(const BIO *b);
256 typedef void bio_info_cb(BIO *, int, const char *, int, long, long);
260 /* Prefix and suffix callback in ASN1 BIO */
261 typedef int asn1_ps_func (BIO *b, unsigned char **pbuf, int *plen,
264 # ifndef OPENSSL_NO_SCTP
265 /* SCTP parameter structs */
266 struct bio_dgram_sctp_sndinfo {
270 uint32_t snd_context;
273 struct bio_dgram_sctp_rcvinfo {
280 uint32_t rcv_context;
283 struct bio_dgram_sctp_prinfo {
290 * #define BIO_CONN_get_param_hostname BIO_ctrl
293 # define BIO_C_SET_CONNECT 100
294 # define BIO_C_DO_STATE_MACHINE 101
295 # define BIO_C_SET_NBIO 102
296 /* # define BIO_C_SET_PROXY_PARAM 103 */
297 # define BIO_C_SET_FD 104
298 # define BIO_C_GET_FD 105
299 # define BIO_C_SET_FILE_PTR 106
300 # define BIO_C_GET_FILE_PTR 107
301 # define BIO_C_SET_FILENAME 108
302 # define BIO_C_SET_SSL 109
303 # define BIO_C_GET_SSL 110
304 # define BIO_C_SET_MD 111
305 # define BIO_C_GET_MD 112
306 # define BIO_C_GET_CIPHER_STATUS 113
307 # define BIO_C_SET_BUF_MEM 114
308 # define BIO_C_GET_BUF_MEM_PTR 115
309 # define BIO_C_GET_BUFF_NUM_LINES 116
310 # define BIO_C_SET_BUFF_SIZE 117
311 # define BIO_C_SET_ACCEPT 118
312 # define BIO_C_SSL_MODE 119
313 # define BIO_C_GET_MD_CTX 120
314 /* # define BIO_C_GET_PROXY_PARAM 121 */
315 # define BIO_C_SET_BUFF_READ_DATA 122/* data to read first */
316 # define BIO_C_GET_CONNECT 123
317 # define BIO_C_GET_ACCEPT 124
318 # define BIO_C_SET_SSL_RENEGOTIATE_BYTES 125
319 # define BIO_C_GET_SSL_NUM_RENEGOTIATES 126
320 # define BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT 127
321 # define BIO_C_FILE_SEEK 128
322 # define BIO_C_GET_CIPHER_CTX 129
323 # define BIO_C_SET_BUF_MEM_EOF_RETURN 130/* return end of input
325 # define BIO_C_SET_BIND_MODE 131
326 # define BIO_C_GET_BIND_MODE 132
327 # define BIO_C_FILE_TELL 133
328 # define BIO_C_GET_SOCKS 134
329 # define BIO_C_SET_SOCKS 135
331 # define BIO_C_SET_WRITE_BUF_SIZE 136/* for BIO_s_bio */
332 # define BIO_C_GET_WRITE_BUF_SIZE 137
333 # define BIO_C_MAKE_BIO_PAIR 138
334 # define BIO_C_DESTROY_BIO_PAIR 139
335 # define BIO_C_GET_WRITE_GUARANTEE 140
336 # define BIO_C_GET_READ_REQUEST 141
337 # define BIO_C_SHUTDOWN_WR 142
338 # define BIO_C_NREAD0 143
339 # define BIO_C_NREAD 144
340 # define BIO_C_NWRITE0 145
341 # define BIO_C_NWRITE 146
342 # define BIO_C_RESET_READ_REQUEST 147
343 # define BIO_C_SET_MD_CTX 148
345 # define BIO_C_SET_PREFIX 149
346 # define BIO_C_GET_PREFIX 150
347 # define BIO_C_SET_SUFFIX 151
348 # define BIO_C_GET_SUFFIX 152
350 # define BIO_C_SET_EX_ARG 153
351 # define BIO_C_GET_EX_ARG 154
353 # define BIO_C_SET_CONNECT_MODE 155
355 # define BIO_set_app_data(s,arg) BIO_set_ex_data(s,0,arg)
356 # define BIO_get_app_data(s) BIO_get_ex_data(s,0)
358 # define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL)
360 # ifndef OPENSSL_NO_SOCK
361 /* IP families we support, for BIO_s_connect() and BIO_s_accept() */
362 /* Note: the underlying operating system may not support some of them */
363 # define BIO_FAMILY_IPV4 4
364 # define BIO_FAMILY_IPV6 6
365 # define BIO_FAMILY_IPANY 256
367 /* BIO_s_connect() */
368 # define BIO_set_conn_hostname(b,name) BIO_ctrl(b,BIO_C_SET_CONNECT,0, \
370 # define BIO_set_conn_port(b,port) BIO_ctrl(b,BIO_C_SET_CONNECT,1, \
372 # define BIO_set_conn_address(b,addr) BIO_ctrl(b,BIO_C_SET_CONNECT,2, \
374 # define BIO_set_conn_ip_family(b,f) BIO_int_ctrl(b,BIO_C_SET_CONNECT,3,f)
375 # define BIO_get_conn_hostname(b) ((const char *)BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,0))
376 # define BIO_get_conn_port(b) ((const char *)BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,1))
377 # define BIO_get_conn_address(b) ((const BIO_ADDR *)BIO_ptr_ctrl(b,BIO_C_GET_CONNECT,2))
378 # define BIO_get_conn_ip_family(b) BIO_ctrl(b,BIO_C_GET_CONNECT,3,NULL)
379 # define BIO_set_conn_mode(b,n) BIO_ctrl(b,BIO_C_SET_CONNECT_MODE,(n),NULL)
382 # define BIO_set_accept_name(b,name) BIO_ctrl(b,BIO_C_SET_ACCEPT,0, \
384 # define BIO_set_accept_port(b,port) BIO_ctrl(b,BIO_C_SET_ACCEPT,1, \
386 # define BIO_get_accept_name(b) ((const char *)BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,0))
387 # define BIO_get_accept_port(b) ((const char *)BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,1))
388 # define BIO_get_peer_name(b) ((const char *)BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,2))
389 # define BIO_get_peer_port(b) ((const char *)BIO_ptr_ctrl(b,BIO_C_GET_ACCEPT,3))
390 /* #define BIO_set_nbio(b,n) BIO_ctrl(b,BIO_C_SET_NBIO,(n),NULL) */
391 # define BIO_set_nbio_accept(b,n) BIO_ctrl(b,BIO_C_SET_ACCEPT,2,(n)?(void *)"a":NULL)
392 # define BIO_set_accept_bios(b,bio) BIO_ctrl(b,BIO_C_SET_ACCEPT,3, \
394 # define BIO_set_accept_ip_family(b,f) BIO_int_ctrl(b,BIO_C_SET_ACCEPT,4,f)
395 # define BIO_get_accept_ip_family(b) BIO_ctrl(b,BIO_C_GET_ACCEPT,4,NULL)
397 /* Aliases kept for backward compatibility */
398 # define BIO_BIND_NORMAL 0
399 # define BIO_BIND_REUSEADDR BIO_SOCK_REUSEADDR
400 # define BIO_BIND_REUSEADDR_IF_UNUSED BIO_SOCK_REUSEADDR
401 # define BIO_set_bind_mode(b,mode) BIO_ctrl(b,BIO_C_SET_BIND_MODE,mode,NULL)
402 # define BIO_get_bind_mode(b) BIO_ctrl(b,BIO_C_GET_BIND_MODE,0,NULL)
404 /* BIO_s_accept() and BIO_s_connect() */
405 # define BIO_do_connect(b) BIO_do_handshake(b)
406 # define BIO_do_accept(b) BIO_do_handshake(b)
407 # endif /* OPENSSL_NO_SOCK */
409 # define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL)
411 /* BIO_s_datagram(), BIO_s_fd(), BIO_s_socket(), BIO_s_accept() and BIO_s_connect() */
412 # define BIO_set_fd(b,fd,c) BIO_int_ctrl(b,BIO_C_SET_FD,c,fd)
413 # define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char *)(c))
416 # define BIO_set_fp(b,fp,c) BIO_ctrl(b,BIO_C_SET_FILE_PTR,c,(char *)(fp))
417 # define BIO_get_fp(b,fpp) BIO_ctrl(b,BIO_C_GET_FILE_PTR,0,(char *)(fpp))
419 /* BIO_s_fd() and BIO_s_file() */
420 # define BIO_seek(b,ofs) (int)BIO_ctrl(b,BIO_C_FILE_SEEK,ofs,NULL)
421 # define BIO_tell(b) (int)BIO_ctrl(b,BIO_C_FILE_TELL,0,NULL)
424 * name is cast to lose const, but might be better to route through a
425 * function so we can do it safely
429 * If you are wondering why this isn't defined, its because CONST_STRICT is
430 * purely a compile-time kludge to allow const to be checked.
432 int BIO_read_filename(BIO *b, const char *name);
434 # define BIO_read_filename(b,name) (int)BIO_ctrl(b,BIO_C_SET_FILENAME, \
435 BIO_CLOSE|BIO_FP_READ,(char *)(name))
437 # define BIO_write_filename(b,name) (int)BIO_ctrl(b,BIO_C_SET_FILENAME, \
438 BIO_CLOSE|BIO_FP_WRITE,name)
439 # define BIO_append_filename(b,name) (int)BIO_ctrl(b,BIO_C_SET_FILENAME, \
440 BIO_CLOSE|BIO_FP_APPEND,name)
441 # define BIO_rw_filename(b,name) (int)BIO_ctrl(b,BIO_C_SET_FILENAME, \
442 BIO_CLOSE|BIO_FP_READ|BIO_FP_WRITE,name)
445 * WARNING WARNING, this ups the reference count on the read bio of the SSL
446 * structure. This is because the ssl read BIO is now pointed to by the
447 * next_bio field in the bio. So when you free the BIO, make sure you are
448 * doing a BIO_free_all() to catch the underlying BIO.
450 # define BIO_set_ssl(b,ssl,c) BIO_ctrl(b,BIO_C_SET_SSL,c,(char *)(ssl))
451 # define BIO_get_ssl(b,sslp) BIO_ctrl(b,BIO_C_GET_SSL,0,(char *)(sslp))
452 # define BIO_set_ssl_mode(b,client) BIO_ctrl(b,BIO_C_SSL_MODE,client,NULL)
453 # define BIO_set_ssl_renegotiate_bytes(b,num) \
454 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_BYTES,num,NULL)
455 # define BIO_get_num_renegotiates(b) \
456 BIO_ctrl(b,BIO_C_GET_SSL_NUM_RENEGOTIATES,0,NULL)
457 # define BIO_set_ssl_renegotiate_timeout(b,seconds) \
458 BIO_ctrl(b,BIO_C_SET_SSL_RENEGOTIATE_TIMEOUT,seconds,NULL)
460 /* defined in evp.h */
461 /* #define BIO_set_md(b,md) BIO_ctrl(b,BIO_C_SET_MD,1,(char *)(md)) */
463 # define BIO_get_mem_data(b,pp) BIO_ctrl(b,BIO_CTRL_INFO,0,(char *)(pp))
464 # define BIO_set_mem_buf(b,bm,c) BIO_ctrl(b,BIO_C_SET_BUF_MEM,c,(char *)(bm))
465 # define BIO_get_mem_ptr(b,pp) BIO_ctrl(b,BIO_C_GET_BUF_MEM_PTR,0, \
467 # define BIO_set_mem_eof_return(b,v) \
468 BIO_ctrl(b,BIO_C_SET_BUF_MEM_EOF_RETURN,v,NULL)
470 /* For the BIO_f_buffer() type */
471 # define BIO_get_buffer_num_lines(b) BIO_ctrl(b,BIO_C_GET_BUFF_NUM_LINES,0,NULL)
472 # define BIO_set_buffer_size(b,size) BIO_ctrl(b,BIO_C_SET_BUFF_SIZE,size,NULL)
473 # define BIO_set_read_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,0)
474 # define BIO_set_write_buffer_size(b,size) BIO_int_ctrl(b,BIO_C_SET_BUFF_SIZE,size,1)
475 # define BIO_set_buffer_read_data(b,buf,num) BIO_ctrl(b,BIO_C_SET_BUFF_READ_DATA,num,buf)
477 /* Don't use the next one unless you know what you are doing :-) */
478 # define BIO_dup_state(b,ret) BIO_ctrl(b,BIO_CTRL_DUP,0,(char *)(ret))
480 # define BIO_reset(b) (int)BIO_ctrl(b,BIO_CTRL_RESET,0,NULL)
481 # define BIO_eof(b) (int)BIO_ctrl(b,BIO_CTRL_EOF,0,NULL)
482 # define BIO_set_close(b,c) (int)BIO_ctrl(b,BIO_CTRL_SET_CLOSE,(c),NULL)
483 # define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL)
484 # define BIO_pending(b) (int)BIO_ctrl(b,BIO_CTRL_PENDING,0,NULL)
485 # define BIO_wpending(b) (int)BIO_ctrl(b,BIO_CTRL_WPENDING,0,NULL)
486 /* ...pending macros have inappropriate return type */
487 size_t BIO_ctrl_pending(BIO *b);
488 size_t BIO_ctrl_wpending(BIO *b);
489 # define BIO_flush(b) (int)BIO_ctrl(b,BIO_CTRL_FLUSH,0,NULL)
490 # define BIO_get_info_callback(b,cbp) (int)BIO_ctrl(b,BIO_CTRL_GET_CALLBACK,0, \
492 # define BIO_set_info_callback(b,cb) (int)BIO_callback_ctrl(b,BIO_CTRL_SET_CALLBACK,cb)
494 /* For the BIO_f_buffer() type */
495 # define BIO_buffer_get_num_lines(b) BIO_ctrl(b,BIO_CTRL_GET,0,NULL)
497 /* For BIO_s_bio() */
498 # define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL)
499 # define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL)
500 # define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2)
501 # define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL)
502 # define BIO_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL)
503 /* macros with inappropriate type -- but ...pending macros use int too: */
504 # define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL)
505 # define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL)
506 size_t BIO_ctrl_get_write_guarantee(BIO *b);
507 size_t BIO_ctrl_get_read_request(BIO *b);
508 int BIO_ctrl_reset_read_request(BIO *b);
510 /* ctrl macros for dgram */
511 # define BIO_ctrl_dgram_connect(b,peer) \
512 (int)BIO_ctrl(b,BIO_CTRL_DGRAM_CONNECT,0, (char *)(peer))
513 # define BIO_ctrl_set_connected(b,peer) \
514 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_CONNECTED, 0, (char *)(peer))
515 # define BIO_dgram_recv_timedout(b) \
516 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP, 0, NULL)
517 # define BIO_dgram_send_timedout(b) \
518 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP, 0, NULL)
519 # define BIO_dgram_get_peer(b,peer) \
520 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_GET_PEER, 0, (char *)(peer))
521 # define BIO_dgram_set_peer(b,peer) \
522 (int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, (char *)(peer))
523 # define BIO_dgram_get_mtu_overhead(b) \
524 (unsigned int)BIO_ctrl((b), BIO_CTRL_DGRAM_GET_MTU_OVERHEAD, 0, NULL)
526 #define BIO_get_ex_new_index(l, p, newf, dupf, freef) \
527 CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_BIO, l, p, newf, dupf, freef)
528 int BIO_set_ex_data(BIO *bio, int idx, void *data);
529 void *BIO_get_ex_data(BIO *bio, int idx);
530 uint64_t BIO_number_read(BIO *bio);
531 uint64_t BIO_number_written(BIO *bio);
533 /* For BIO_f_asn1() */
534 int BIO_asn1_set_prefix(BIO *b, asn1_ps_func *prefix,
535 asn1_ps_func *prefix_free);
536 int BIO_asn1_get_prefix(BIO *b, asn1_ps_func **pprefix,
537 asn1_ps_func **pprefix_free);
538 int BIO_asn1_set_suffix(BIO *b, asn1_ps_func *suffix,
539 asn1_ps_func *suffix_free);
540 int BIO_asn1_get_suffix(BIO *b, asn1_ps_func **psuffix,
541 asn1_ps_func **psuffix_free);
543 const BIO_METHOD *BIO_s_file(void);
544 BIO *BIO_new_file(const char *filename, const char *mode);
545 # ifndef OPENSSL_NO_STDIO
546 BIO *BIO_new_fp(FILE *stream, int close_flag);
548 BIO *BIO_new(const BIO_METHOD *type);
549 int BIO_free(BIO *a);
550 void BIO_set_data(BIO *a, void *ptr);
551 void *BIO_get_data(BIO *a);
552 void BIO_set_init(BIO *a, int init);
553 int BIO_get_init(BIO *a);
554 void BIO_set_shutdown(BIO *a, int shut);
555 int BIO_get_shutdown(BIO *a);
556 void BIO_vfree(BIO *a);
557 int BIO_up_ref(BIO *a);
558 int BIO_read(BIO *b, void *data, int dlen);
559 int BIO_read_ex(BIO *b, void *data, size_t dlen, size_t *readbytes);
560 int BIO_gets(BIO *bp, char *buf, int size);
561 int BIO_write(BIO *b, const void *data, int dlen);
562 int BIO_write_ex(BIO *b, const void *data, size_t dlen, size_t *written);
563 int BIO_puts(BIO *bp, const char *buf);
564 int BIO_indent(BIO *b, int indent, int max);
565 long BIO_ctrl(BIO *bp, int cmd, long larg, void *parg);
566 long BIO_callback_ctrl(BIO *b, int cmd,
567 void (*fp) (BIO *, int, const char *, int, long, long));
568 void *BIO_ptr_ctrl(BIO *bp, int cmd, long larg);
569 long BIO_int_ctrl(BIO *bp, int cmd, long larg, int iarg);
570 BIO *BIO_push(BIO *b, BIO *append);
571 BIO *BIO_pop(BIO *b);
572 void BIO_free_all(BIO *a);
573 BIO *BIO_find_type(BIO *b, int bio_type);
574 BIO *BIO_next(BIO *b);
575 void BIO_set_next(BIO *b, BIO *next);
576 BIO *BIO_get_retry_BIO(BIO *bio, int *reason);
577 int BIO_get_retry_reason(BIO *bio);
578 void BIO_set_retry_reason(BIO *bio, int reason);
579 BIO *BIO_dup_chain(BIO *in);
581 int BIO_nread0(BIO *bio, char **buf);
582 int BIO_nread(BIO *bio, char **buf, int num);
583 int BIO_nwrite0(BIO *bio, char **buf);
584 int BIO_nwrite(BIO *bio, char **buf, int num);
586 long BIO_debug_callback(BIO *bio, int cmd, const char *argp, int argi,
587 long argl, long ret);
589 const BIO_METHOD *BIO_s_mem(void);
590 const BIO_METHOD *BIO_s_secmem(void);
591 BIO *BIO_new_mem_buf(const void *buf, int len);
592 # ifndef OPENSSL_NO_SOCK
593 const BIO_METHOD *BIO_s_socket(void);
594 const BIO_METHOD *BIO_s_connect(void);
595 const BIO_METHOD *BIO_s_accept(void);
597 const BIO_METHOD *BIO_s_fd(void);
598 const BIO_METHOD *BIO_s_log(void);
599 const BIO_METHOD *BIO_s_bio(void);
600 const BIO_METHOD *BIO_s_null(void);
601 const BIO_METHOD *BIO_f_null(void);
602 const BIO_METHOD *BIO_f_buffer(void);
603 const BIO_METHOD *BIO_f_linebuffer(void);
604 const BIO_METHOD *BIO_f_nbio_test(void);
605 # ifndef OPENSSL_NO_DGRAM
606 const BIO_METHOD *BIO_s_datagram(void);
607 int BIO_dgram_non_fatal_error(int error);
608 BIO *BIO_new_dgram(int fd, int close_flag);
609 # ifndef OPENSSL_NO_SCTP
610 const BIO_METHOD *BIO_s_datagram_sctp(void);
611 BIO *BIO_new_dgram_sctp(int fd, int close_flag);
612 int BIO_dgram_is_sctp(BIO *bio);
613 int BIO_dgram_sctp_notification_cb(BIO *b,
614 void (*handle_notifications) (BIO *bio,
618 int BIO_dgram_sctp_wait_for_dry(BIO *b);
619 int BIO_dgram_sctp_msg_waiting(BIO *b);
623 # ifndef OPENSSL_NO_SOCK
624 int BIO_sock_should_retry(int i);
625 int BIO_sock_non_fatal_error(int error);
628 int BIO_fd_should_retry(int i);
629 int BIO_fd_non_fatal_error(int error);
630 int BIO_dump_cb(int (*cb) (const void *data, size_t len, void *u),
631 void *u, const char *s, int len);
632 int BIO_dump_indent_cb(int (*cb) (const void *data, size_t len, void *u),
633 void *u, const char *s, int len, int indent);
634 int BIO_dump(BIO *b, const char *bytes, int len);
635 int BIO_dump_indent(BIO *b, const char *bytes, int len, int indent);
636 # ifndef OPENSSL_NO_STDIO
637 int BIO_dump_fp(FILE *fp, const char *s, int len);
638 int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent);
640 int BIO_hex_string(BIO *out, int indent, int width, unsigned char *data,
643 # ifndef OPENSSL_NO_SOCK
644 BIO_ADDR *BIO_ADDR_new(void);
645 int BIO_ADDR_rawmake(BIO_ADDR *ap, int family,
646 const void *where, size_t wherelen, unsigned short port);
647 void BIO_ADDR_free(BIO_ADDR *);
648 void BIO_ADDR_clear(BIO_ADDR *ap);
649 int BIO_ADDR_family(const BIO_ADDR *ap);
650 int BIO_ADDR_rawaddress(const BIO_ADDR *ap, void *p, size_t *l);
651 unsigned short BIO_ADDR_rawport(const BIO_ADDR *ap);
652 char *BIO_ADDR_hostname_string(const BIO_ADDR *ap, int numeric);
653 char *BIO_ADDR_service_string(const BIO_ADDR *ap, int numeric);
654 char *BIO_ADDR_path_string(const BIO_ADDR *ap);
656 const BIO_ADDRINFO *BIO_ADDRINFO_next(const BIO_ADDRINFO *bai);
657 int BIO_ADDRINFO_family(const BIO_ADDRINFO *bai);
658 int BIO_ADDRINFO_socktype(const BIO_ADDRINFO *bai);
659 int BIO_ADDRINFO_protocol(const BIO_ADDRINFO *bai);
660 const BIO_ADDR *BIO_ADDRINFO_address(const BIO_ADDRINFO *bai);
661 void BIO_ADDRINFO_free(BIO_ADDRINFO *bai);
663 enum BIO_hostserv_priorities {
664 BIO_PARSE_PRIO_HOST, BIO_PARSE_PRIO_SERV
666 int BIO_parse_hostserv(const char *hostserv, char **host, char **service,
667 enum BIO_hostserv_priorities hostserv_prio);
668 enum BIO_lookup_type {
669 BIO_LOOKUP_CLIENT, BIO_LOOKUP_SERVER
671 int BIO_lookup(const char *host, const char *service,
672 enum BIO_lookup_type lookup_type,
673 int family, int socktype, BIO_ADDRINFO **res);
674 int BIO_lookup_ex(const char *host, const char *service,
675 int lookup_type, int family, int socktype, int protocol,
677 int BIO_sock_error(int sock);
678 int BIO_socket_ioctl(int fd, long type, void *arg);
679 int BIO_socket_nbio(int fd, int mode);
680 int BIO_sock_init(void);
681 # if OPENSSL_API_COMPAT < 0x10100000L
682 # define BIO_sock_cleanup() while(0) continue
684 int BIO_set_tcp_ndelay(int sock, int turn_on);
686 DEPRECATEDIN_1_1_0(struct hostent *BIO_gethostbyname(const char *name))
687 DEPRECATEDIN_1_1_0(int BIO_get_port(const char *str, unsigned short *port_ptr))
688 DEPRECATEDIN_1_1_0(int BIO_get_host_ip(const char *str, unsigned char *ip))
689 DEPRECATEDIN_1_1_0(int BIO_get_accept_socket(char *host_port, int mode))
690 DEPRECATEDIN_1_1_0(int BIO_accept(int sock, char **ip_port))
692 union BIO_sock_info_u {
695 enum BIO_sock_info_type {
696 BIO_SOCK_INFO_ADDRESS
698 int BIO_sock_info(int sock,
699 enum BIO_sock_info_type type, union BIO_sock_info_u *info);
701 # define BIO_SOCK_REUSEADDR 0x01
702 # define BIO_SOCK_V6_ONLY 0x02
703 # define BIO_SOCK_KEEPALIVE 0x04
704 # define BIO_SOCK_NONBLOCK 0x08
705 # define BIO_SOCK_NODELAY 0x10
707 int BIO_socket(int domain, int socktype, int protocol, int options);
708 int BIO_connect(int sock, const BIO_ADDR *addr, int options);
709 int BIO_listen(int sock, const BIO_ADDR *addr, int options);
710 int BIO_accept_ex(int accept_sock, BIO_ADDR *addr, int options);
711 int BIO_closesocket(int sock);
713 BIO *BIO_new_socket(int sock, int close_flag);
714 BIO *BIO_new_connect(const char *host_port);
715 BIO *BIO_new_accept(const char *host_port);
716 # endif /* OPENSSL_NO_SOCK*/
718 BIO *BIO_new_fd(int fd, int close_flag);
720 int BIO_new_bio_pair(BIO **bio1, size_t writebuf1,
721 BIO **bio2, size_t writebuf2);
723 * If successful, returns 1 and in *bio1, *bio2 two BIO pair endpoints.
724 * Otherwise returns 0 and sets *bio1 and *bio2 to NULL. Size 0 uses default
728 void BIO_copy_next_retry(BIO *b);
731 * long BIO_ghbn_ctrl(int cmd,int iarg,char *parg);
734 # define __bio_h__attr__(x)
735 # if defined(__GNUC__) && defined(__STDC_VERSION__)
737 * Because we support the 'z' modifier, which made its appearance in C99,
738 * we can't use __attribute__ with pre C99 dialects.
740 # if __STDC_VERSION__ >= 199901L
741 # undef __bio_h__attr__
742 # define __bio_h__attr__ __attribute__
745 int BIO_printf(BIO *bio, const char *format, ...)
746 __bio_h__attr__((__format__(__printf__, 2, 3)));
747 int BIO_vprintf(BIO *bio, const char *format, va_list args)
748 __bio_h__attr__((__format__(__printf__, 2, 0)));
749 int BIO_snprintf(char *buf, size_t n, const char *format, ...)
750 __bio_h__attr__((__format__(__printf__, 3, 4)));
751 int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args)
752 __bio_h__attr__((__format__(__printf__, 3, 0)));
753 # undef __bio_h__attr__
756 BIO_METHOD *BIO_meth_new(int type, const char *name);
757 void BIO_meth_free(BIO_METHOD *biom);
758 int (*BIO_meth_get_write(BIO_METHOD *biom)) (BIO *, const char *, int);
759 int (*BIO_meth_get_write_ex(BIO_METHOD *biom)) (BIO *, const char *, size_t,
761 int BIO_meth_set_write(BIO_METHOD *biom,
762 int (*write) (BIO *, const char *, int));
763 int BIO_meth_set_write_ex(BIO_METHOD *biom,
764 int (*bwrite) (BIO *, const char *, size_t, size_t *));
765 int (*BIO_meth_get_read(BIO_METHOD *biom)) (BIO *, char *, int);
766 int (*BIO_meth_get_read_ex(BIO_METHOD *biom)) (BIO *, char *, size_t, size_t *);
767 int BIO_meth_set_read(BIO_METHOD *biom,
768 int (*read) (BIO *, char *, int));
769 int BIO_meth_set_read_ex(BIO_METHOD *biom,
770 int (*bread) (BIO *, char *, size_t, size_t *));
771 int (*BIO_meth_get_puts(BIO_METHOD *biom)) (BIO *, const char *);
772 int BIO_meth_set_puts(BIO_METHOD *biom,
773 int (*puts) (BIO *, const char *));
774 int (*BIO_meth_get_gets(BIO_METHOD *biom)) (BIO *, char *, int);
775 int BIO_meth_set_gets(BIO_METHOD *biom,
776 int (*gets) (BIO *, char *, int));
777 long (*BIO_meth_get_ctrl(BIO_METHOD *biom)) (BIO *, int, long, void *);
778 int BIO_meth_set_ctrl(BIO_METHOD *biom,
779 long (*ctrl) (BIO *, int, long, void *));
780 int (*BIO_meth_get_create(BIO_METHOD *bion)) (BIO *);
781 int BIO_meth_set_create(BIO_METHOD *biom, int (*create) (BIO *));
782 int (*BIO_meth_get_destroy(BIO_METHOD *biom)) (BIO *);
783 int BIO_meth_set_destroy(BIO_METHOD *biom, int (*destroy) (BIO *));
784 long (*BIO_meth_get_callback_ctrl(BIO_METHOD *biom))
785 (BIO *, int, bio_info_cb *);
786 int BIO_meth_set_callback_ctrl(BIO_METHOD *biom,
787 long (*callback_ctrl) (BIO *, int,
789 int ERR_load_BIO_strings(void);