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1 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
2 | * All rights reserved. | |
3 | * | |
4 | * This package is an SSL implementation written | |
5 | * by Eric Young (eay@cryptsoft.com). | |
6 | * The implementation was written so as to conform with Netscapes SSL. | |
7 | * | |
8 | * This library is free for commercial and non-commercial use as long as | |
9 | * the following conditions are aheared to. The following conditions | |
10 | * apply to all code found in this distribution, be it the RC4, RSA, | |
11 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
12 | * included with this distribution is covered by the same copyright terms | |
13 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
14 | * | |
15 | * Copyright remains Eric Young's, and as such any Copyright notices in | |
16 | * the code are not to be removed. | |
17 | * If this package is used in a product, Eric Young should be given attribution | |
18 | * as the author of the parts of the library used. | |
19 | * This can be in the form of a textual message at program startup or | |
20 | * in documentation (online or textual) provided with the package. | |
21 | * | |
22 | * Redistribution and use in source and binary forms, with or without | |
23 | * modification, are permitted provided that the following conditions | |
24 | * are met: | |
25 | * 1. Redistributions of source code must retain the copyright | |
26 | * notice, this list of conditions and the following disclaimer. | |
27 | * 2. Redistributions in binary form must reproduce the above copyright | |
28 | * notice, this list of conditions and the following disclaimer in the | |
29 | * documentation and/or other materials provided with the distribution. | |
30 | * 3. All advertising materials mentioning features or use of this software | |
31 | * must display the following acknowledgement: | |
32 | * "This product includes cryptographic software written by | |
33 | * Eric Young (eay@cryptsoft.com)" | |
34 | * The word 'cryptographic' can be left out if the rouines from the library | |
35 | * being used are not cryptographic related :-). | |
36 | * 4. If you include any Windows specific code (or a derivative thereof) from | |
37 | * the apps directory (application code) you must include an acknowledgement: | |
38 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
39 | * | |
40 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
41 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
43 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
44 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
45 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
46 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
48 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
49 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
50 | * SUCH DAMAGE. | |
51 | * | |
52 | * The licence and distribution terms for any publically available version or | |
53 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
54 | * copied and put under another distribution licence | |
55 | * [including the GNU Public Licence.] | |
56 | */ | |
57 | ||
58 | #include <stdio.h> | |
59 | #include <errno.h> | |
60 | #include <openssl/crypto.h> | |
61 | #include "bio_lcl.h" | |
62 | #include "internal/cryptlib.h" | |
63 | #include <openssl/stack.h> | |
64 | ||
65 | BIO *BIO_new(const BIO_METHOD *method) | |
66 | { | |
67 | BIO *ret = OPENSSL_malloc(sizeof(*ret)); | |
68 | ||
69 | if (ret == NULL) { | |
70 | BIOerr(BIO_F_BIO_NEW, ERR_R_MALLOC_FAILURE); | |
71 | return (NULL); | |
72 | } | |
73 | if (!BIO_set(ret, method)) { | |
74 | OPENSSL_free(ret); | |
75 | ret = NULL; | |
76 | } | |
77 | return (ret); | |
78 | } | |
79 | ||
80 | int BIO_set(BIO *bio, const BIO_METHOD *method) | |
81 | { | |
82 | bio->method = method; | |
83 | bio->callback = NULL; | |
84 | bio->cb_arg = NULL; | |
85 | bio->init = 0; | |
86 | bio->shutdown = 1; | |
87 | bio->flags = 0; | |
88 | bio->retry_reason = 0; | |
89 | bio->num = 0; | |
90 | bio->ptr = NULL; | |
91 | bio->prev_bio = NULL; | |
92 | bio->next_bio = NULL; | |
93 | bio->references = 1; | |
94 | bio->num_read = 0L; | |
95 | bio->num_write = 0L; | |
96 | CRYPTO_new_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data); | |
97 | ||
98 | bio->lock = CRYPTO_THREAD_lock_new(); | |
99 | if (bio->lock == NULL) { | |
100 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data); | |
101 | return 0; | |
102 | } | |
103 | ||
104 | if (method->create != NULL) { | |
105 | if (!method->create(bio)) { | |
106 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data); | |
107 | CRYPTO_THREAD_lock_free(bio->lock); | |
108 | return 0; | |
109 | } | |
110 | } | |
111 | ||
112 | return 1; | |
113 | } | |
114 | ||
115 | int BIO_free(BIO *a) | |
116 | { | |
117 | int i; | |
118 | ||
119 | if (a == NULL) | |
120 | return 0; | |
121 | ||
122 | if (CRYPTO_atomic_add(&a->references, -1, &i, a->lock) <= 0) | |
123 | return 0; | |
124 | ||
125 | REF_PRINT_COUNT("BIO", a); | |
126 | if (i > 0) | |
127 | return 1; | |
128 | REF_ASSERT_ISNT(i < 0); | |
129 | if ((a->callback != NULL) && | |
130 | ((i = (int)a->callback(a, BIO_CB_FREE, NULL, 0, 0L, 1L)) <= 0)) | |
131 | return i; | |
132 | ||
133 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, a, &a->ex_data); | |
134 | ||
135 | CRYPTO_THREAD_lock_free(a->lock); | |
136 | ||
137 | if ((a->method != NULL) && (a->method->destroy != NULL)) | |
138 | a->method->destroy(a); | |
139 | ||
140 | OPENSSL_free(a); | |
141 | ||
142 | return 1; | |
143 | } | |
144 | ||
145 | void BIO_set_data(BIO *a, void *ptr) | |
146 | { | |
147 | a->ptr = ptr; | |
148 | } | |
149 | ||
150 | void *BIO_get_data(BIO *a) | |
151 | { | |
152 | return a->ptr; | |
153 | } | |
154 | ||
155 | void BIO_set_init(BIO *a, int init) | |
156 | { | |
157 | a->init = init; | |
158 | } | |
159 | ||
160 | int BIO_get_init(BIO *a) | |
161 | { | |
162 | return a->init; | |
163 | } | |
164 | ||
165 | void BIO_set_shutdown(BIO *a, int shut) | |
166 | { | |
167 | a->shutdown = shut; | |
168 | } | |
169 | ||
170 | int BIO_get_shutdown(BIO *a) | |
171 | { | |
172 | return a->shutdown; | |
173 | } | |
174 | ||
175 | void BIO_vfree(BIO *a) | |
176 | { | |
177 | BIO_free(a); | |
178 | } | |
179 | ||
180 | int BIO_up_ref(BIO *a) | |
181 | { | |
182 | int i; | |
183 | ||
184 | if (CRYPTO_atomic_add(&a->references, 1, &i, a->lock) <= 0) | |
185 | return 0; | |
186 | ||
187 | REF_PRINT_COUNT("BIO", a); | |
188 | REF_ASSERT_ISNT(i < 2); | |
189 | return ((i > 1) ? 1 : 0); | |
190 | } | |
191 | ||
192 | void BIO_clear_flags(BIO *b, int flags) | |
193 | { | |
194 | b->flags &= ~flags; | |
195 | } | |
196 | ||
197 | int BIO_test_flags(const BIO *b, int flags) | |
198 | { | |
199 | return (b->flags & flags); | |
200 | } | |
201 | ||
202 | void BIO_set_flags(BIO *b, int flags) | |
203 | { | |
204 | b->flags |= flags; | |
205 | } | |
206 | ||
207 | long (*BIO_get_callback(const BIO *b)) (struct bio_st *, int, const char *, | |
208 | int, long, long) { | |
209 | return b->callback; | |
210 | } | |
211 | ||
212 | void BIO_set_callback(BIO *b, | |
213 | long (*cb) (struct bio_st *, int, const char *, int, | |
214 | long, long)) | |
215 | { | |
216 | b->callback = cb; | |
217 | } | |
218 | ||
219 | void BIO_set_callback_arg(BIO *b, char *arg) | |
220 | { | |
221 | b->cb_arg = arg; | |
222 | } | |
223 | ||
224 | char *BIO_get_callback_arg(const BIO *b) | |
225 | { | |
226 | return b->cb_arg; | |
227 | } | |
228 | ||
229 | const char *BIO_method_name(const BIO *b) | |
230 | { | |
231 | return b->method->name; | |
232 | } | |
233 | ||
234 | int BIO_method_type(const BIO *b) | |
235 | { | |
236 | return b->method->type; | |
237 | } | |
238 | ||
239 | int BIO_read(BIO *b, void *out, int outl) | |
240 | { | |
241 | int i; | |
242 | long (*cb) (BIO *, int, const char *, int, long, long); | |
243 | ||
244 | if ((b == NULL) || (b->method == NULL) || (b->method->bread == NULL)) { | |
245 | BIOerr(BIO_F_BIO_READ, BIO_R_UNSUPPORTED_METHOD); | |
246 | return (-2); | |
247 | } | |
248 | ||
249 | cb = b->callback; | |
250 | if ((cb != NULL) && | |
251 | ((i = (int)cb(b, BIO_CB_READ, out, outl, 0L, 1L)) <= 0)) | |
252 | return (i); | |
253 | ||
254 | if (!b->init) { | |
255 | BIOerr(BIO_F_BIO_READ, BIO_R_UNINITIALIZED); | |
256 | return (-2); | |
257 | } | |
258 | ||
259 | i = b->method->bread(b, out, outl); | |
260 | ||
261 | if (i > 0) | |
262 | b->num_read += (uint64_t)i; | |
263 | ||
264 | if (cb != NULL) | |
265 | i = (int)cb(b, BIO_CB_READ | BIO_CB_RETURN, out, outl, 0L, (long)i); | |
266 | return (i); | |
267 | } | |
268 | ||
269 | int BIO_write(BIO *b, const void *in, int inl) | |
270 | { | |
271 | int i; | |
272 | long (*cb) (BIO *, int, const char *, int, long, long); | |
273 | ||
274 | if (b == NULL) | |
275 | return (0); | |
276 | ||
277 | cb = b->callback; | |
278 | if ((b->method == NULL) || (b->method->bwrite == NULL)) { | |
279 | BIOerr(BIO_F_BIO_WRITE, BIO_R_UNSUPPORTED_METHOD); | |
280 | return (-2); | |
281 | } | |
282 | ||
283 | if ((cb != NULL) && | |
284 | ((i = (int)cb(b, BIO_CB_WRITE, in, inl, 0L, 1L)) <= 0)) | |
285 | return (i); | |
286 | ||
287 | if (!b->init) { | |
288 | BIOerr(BIO_F_BIO_WRITE, BIO_R_UNINITIALIZED); | |
289 | return (-2); | |
290 | } | |
291 | ||
292 | i = b->method->bwrite(b, in, inl); | |
293 | ||
294 | if (i > 0) | |
295 | b->num_write += (uint64_t)i; | |
296 | ||
297 | if (cb != NULL) | |
298 | i = (int)cb(b, BIO_CB_WRITE | BIO_CB_RETURN, in, inl, 0L, (long)i); | |
299 | return (i); | |
300 | } | |
301 | ||
302 | int BIO_puts(BIO *b, const char *in) | |
303 | { | |
304 | int i; | |
305 | long (*cb) (BIO *, int, const char *, int, long, long); | |
306 | ||
307 | if ((b == NULL) || (b->method == NULL) || (b->method->bputs == NULL)) { | |
308 | BIOerr(BIO_F_BIO_PUTS, BIO_R_UNSUPPORTED_METHOD); | |
309 | return (-2); | |
310 | } | |
311 | ||
312 | cb = b->callback; | |
313 | ||
314 | if ((cb != NULL) && ((i = (int)cb(b, BIO_CB_PUTS, in, 0, 0L, 1L)) <= 0)) | |
315 | return (i); | |
316 | ||
317 | if (!b->init) { | |
318 | BIOerr(BIO_F_BIO_PUTS, BIO_R_UNINITIALIZED); | |
319 | return (-2); | |
320 | } | |
321 | ||
322 | i = b->method->bputs(b, in); | |
323 | ||
324 | if (i > 0) | |
325 | b->num_write += (uint64_t)i; | |
326 | ||
327 | if (cb != NULL) | |
328 | i = (int)cb(b, BIO_CB_PUTS | BIO_CB_RETURN, in, 0, 0L, (long)i); | |
329 | return (i); | |
330 | } | |
331 | ||
332 | int BIO_gets(BIO *b, char *in, int inl) | |
333 | { | |
334 | int i; | |
335 | long (*cb) (BIO *, int, const char *, int, long, long); | |
336 | ||
337 | if ((b == NULL) || (b->method == NULL) || (b->method->bgets == NULL)) { | |
338 | BIOerr(BIO_F_BIO_GETS, BIO_R_UNSUPPORTED_METHOD); | |
339 | return (-2); | |
340 | } | |
341 | ||
342 | cb = b->callback; | |
343 | ||
344 | if ((cb != NULL) && ((i = (int)cb(b, BIO_CB_GETS, in, inl, 0L, 1L)) <= 0)) | |
345 | return (i); | |
346 | ||
347 | if (!b->init) { | |
348 | BIOerr(BIO_F_BIO_GETS, BIO_R_UNINITIALIZED); | |
349 | return (-2); | |
350 | } | |
351 | ||
352 | i = b->method->bgets(b, in, inl); | |
353 | ||
354 | if (cb != NULL) | |
355 | i = (int)cb(b, BIO_CB_GETS | BIO_CB_RETURN, in, inl, 0L, (long)i); | |
356 | return (i); | |
357 | } | |
358 | ||
359 | int BIO_indent(BIO *b, int indent, int max) | |
360 | { | |
361 | if (indent < 0) | |
362 | indent = 0; | |
363 | if (indent > max) | |
364 | indent = max; | |
365 | while (indent--) | |
366 | if (BIO_puts(b, " ") != 1) | |
367 | return 0; | |
368 | return 1; | |
369 | } | |
370 | ||
371 | long BIO_int_ctrl(BIO *b, int cmd, long larg, int iarg) | |
372 | { | |
373 | int i; | |
374 | ||
375 | i = iarg; | |
376 | return (BIO_ctrl(b, cmd, larg, (char *)&i)); | |
377 | } | |
378 | ||
379 | void *BIO_ptr_ctrl(BIO *b, int cmd, long larg) | |
380 | { | |
381 | void *p = NULL; | |
382 | ||
383 | if (BIO_ctrl(b, cmd, larg, (char *)&p) <= 0) | |
384 | return (NULL); | |
385 | else | |
386 | return (p); | |
387 | } | |
388 | ||
389 | long BIO_ctrl(BIO *b, int cmd, long larg, void *parg) | |
390 | { | |
391 | long ret; | |
392 | long (*cb) (BIO *, int, const char *, int, long, long); | |
393 | ||
394 | if (b == NULL) | |
395 | return (0); | |
396 | ||
397 | if ((b->method == NULL) || (b->method->ctrl == NULL)) { | |
398 | BIOerr(BIO_F_BIO_CTRL, BIO_R_UNSUPPORTED_METHOD); | |
399 | return (-2); | |
400 | } | |
401 | ||
402 | cb = b->callback; | |
403 | ||
404 | if ((cb != NULL) && | |
405 | ((ret = cb(b, BIO_CB_CTRL, parg, cmd, larg, 1L)) <= 0)) | |
406 | return (ret); | |
407 | ||
408 | ret = b->method->ctrl(b, cmd, larg, parg); | |
409 | ||
410 | if (cb != NULL) | |
411 | ret = cb(b, BIO_CB_CTRL | BIO_CB_RETURN, parg, cmd, larg, ret); | |
412 | return (ret); | |
413 | } | |
414 | ||
415 | long BIO_callback_ctrl(BIO *b, int cmd, | |
416 | void (*fp) (struct bio_st *, int, const char *, int, | |
417 | long, long)) | |
418 | { | |
419 | long ret; | |
420 | long (*cb) (BIO *, int, const char *, int, long, long); | |
421 | ||
422 | if (b == NULL) | |
423 | return (0); | |
424 | ||
425 | if ((b->method == NULL) || (b->method->callback_ctrl == NULL)) { | |
426 | BIOerr(BIO_F_BIO_CALLBACK_CTRL, BIO_R_UNSUPPORTED_METHOD); | |
427 | return (-2); | |
428 | } | |
429 | ||
430 | cb = b->callback; | |
431 | ||
432 | if ((cb != NULL) && | |
433 | ((ret = cb(b, BIO_CB_CTRL, (void *)&fp, cmd, 0, 1L)) <= 0)) | |
434 | return (ret); | |
435 | ||
436 | ret = b->method->callback_ctrl(b, cmd, fp); | |
437 | ||
438 | if (cb != NULL) | |
439 | ret = cb(b, BIO_CB_CTRL | BIO_CB_RETURN, (void *)&fp, cmd, 0, ret); | |
440 | return (ret); | |
441 | } | |
442 | ||
443 | /* | |
444 | * It is unfortunate to duplicate in functions what the BIO_(w)pending macros | |
445 | * do; but those macros have inappropriate return type, and for interfacing | |
446 | * from other programming languages, C macros aren't much of a help anyway. | |
447 | */ | |
448 | size_t BIO_ctrl_pending(BIO *bio) | |
449 | { | |
450 | return BIO_ctrl(bio, BIO_CTRL_PENDING, 0, NULL); | |
451 | } | |
452 | ||
453 | size_t BIO_ctrl_wpending(BIO *bio) | |
454 | { | |
455 | return BIO_ctrl(bio, BIO_CTRL_WPENDING, 0, NULL); | |
456 | } | |
457 | ||
458 | /* put the 'bio' on the end of b's list of operators */ | |
459 | BIO *BIO_push(BIO *b, BIO *bio) | |
460 | { | |
461 | BIO *lb; | |
462 | ||
463 | if (b == NULL) | |
464 | return (bio); | |
465 | lb = b; | |
466 | while (lb->next_bio != NULL) | |
467 | lb = lb->next_bio; | |
468 | lb->next_bio = bio; | |
469 | if (bio != NULL) | |
470 | bio->prev_bio = lb; | |
471 | /* called to do internal processing */ | |
472 | BIO_ctrl(b, BIO_CTRL_PUSH, 0, lb); | |
473 | return (b); | |
474 | } | |
475 | ||
476 | /* Remove the first and return the rest */ | |
477 | BIO *BIO_pop(BIO *b) | |
478 | { | |
479 | BIO *ret; | |
480 | ||
481 | if (b == NULL) | |
482 | return (NULL); | |
483 | ret = b->next_bio; | |
484 | ||
485 | BIO_ctrl(b, BIO_CTRL_POP, 0, b); | |
486 | ||
487 | if (b->prev_bio != NULL) | |
488 | b->prev_bio->next_bio = b->next_bio; | |
489 | if (b->next_bio != NULL) | |
490 | b->next_bio->prev_bio = b->prev_bio; | |
491 | ||
492 | b->next_bio = NULL; | |
493 | b->prev_bio = NULL; | |
494 | return (ret); | |
495 | } | |
496 | ||
497 | BIO *BIO_get_retry_BIO(BIO *bio, int *reason) | |
498 | { | |
499 | BIO *b, *last; | |
500 | ||
501 | b = last = bio; | |
502 | for (;;) { | |
503 | if (!BIO_should_retry(b)) | |
504 | break; | |
505 | last = b; | |
506 | b = b->next_bio; | |
507 | if (b == NULL) | |
508 | break; | |
509 | } | |
510 | if (reason != NULL) | |
511 | *reason = last->retry_reason; | |
512 | return (last); | |
513 | } | |
514 | ||
515 | int BIO_get_retry_reason(BIO *bio) | |
516 | { | |
517 | return (bio->retry_reason); | |
518 | } | |
519 | ||
520 | void BIO_set_retry_reason(BIO *bio, int reason) | |
521 | { | |
522 | bio->retry_reason = reason; | |
523 | } | |
524 | ||
525 | BIO *BIO_find_type(BIO *bio, int type) | |
526 | { | |
527 | int mt, mask; | |
528 | ||
529 | if (bio == NULL) | |
530 | return NULL; | |
531 | mask = type & 0xff; | |
532 | do { | |
533 | if (bio->method != NULL) { | |
534 | mt = bio->method->type; | |
535 | ||
536 | if (!mask) { | |
537 | if (mt & type) | |
538 | return (bio); | |
539 | } else if (mt == type) | |
540 | return (bio); | |
541 | } | |
542 | bio = bio->next_bio; | |
543 | } while (bio != NULL); | |
544 | return (NULL); | |
545 | } | |
546 | ||
547 | BIO *BIO_next(BIO *b) | |
548 | { | |
549 | if (b == NULL) | |
550 | return NULL; | |
551 | return b->next_bio; | |
552 | } | |
553 | ||
554 | void BIO_set_next(BIO *b, BIO *next) | |
555 | { | |
556 | b->next_bio = next; | |
557 | } | |
558 | ||
559 | void BIO_free_all(BIO *bio) | |
560 | { | |
561 | BIO *b; | |
562 | int ref; | |
563 | ||
564 | while (bio != NULL) { | |
565 | b = bio; | |
566 | ref = b->references; | |
567 | bio = bio->next_bio; | |
568 | BIO_free(b); | |
569 | /* Since ref count > 1, don't free anyone else. */ | |
570 | if (ref > 1) | |
571 | break; | |
572 | } | |
573 | } | |
574 | ||
575 | BIO *BIO_dup_chain(BIO *in) | |
576 | { | |
577 | BIO *ret = NULL, *eoc = NULL, *bio, *new_bio; | |
578 | ||
579 | for (bio = in; bio != NULL; bio = bio->next_bio) { | |
580 | if ((new_bio = BIO_new(bio->method)) == NULL) | |
581 | goto err; | |
582 | new_bio->callback = bio->callback; | |
583 | new_bio->cb_arg = bio->cb_arg; | |
584 | new_bio->init = bio->init; | |
585 | new_bio->shutdown = bio->shutdown; | |
586 | new_bio->flags = bio->flags; | |
587 | ||
588 | /* This will let SSL_s_sock() work with stdin/stdout */ | |
589 | new_bio->num = bio->num; | |
590 | ||
591 | if (!BIO_dup_state(bio, (char *)new_bio)) { | |
592 | BIO_free(new_bio); | |
593 | goto err; | |
594 | } | |
595 | ||
596 | /* copy app data */ | |
597 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_BIO, &new_bio->ex_data, | |
598 | &bio->ex_data)) { | |
599 | BIO_free(new_bio); | |
600 | goto err; | |
601 | } | |
602 | ||
603 | if (ret == NULL) { | |
604 | eoc = new_bio; | |
605 | ret = eoc; | |
606 | } else { | |
607 | BIO_push(eoc, new_bio); | |
608 | eoc = new_bio; | |
609 | } | |
610 | } | |
611 | return (ret); | |
612 | err: | |
613 | BIO_free_all(ret); | |
614 | ||
615 | return (NULL); | |
616 | } | |
617 | ||
618 | void BIO_copy_next_retry(BIO *b) | |
619 | { | |
620 | BIO_set_flags(b, BIO_get_retry_flags(b->next_bio)); | |
621 | b->retry_reason = b->next_bio->retry_reason; | |
622 | } | |
623 | ||
624 | int BIO_set_ex_data(BIO *bio, int idx, void *data) | |
625 | { | |
626 | return (CRYPTO_set_ex_data(&(bio->ex_data), idx, data)); | |
627 | } | |
628 | ||
629 | void *BIO_get_ex_data(BIO *bio, int idx) | |
630 | { | |
631 | return (CRYPTO_get_ex_data(&(bio->ex_data), idx)); | |
632 | } | |
633 | ||
634 | uint64_t BIO_number_read(BIO *bio) | |
635 | { | |
636 | if (bio) | |
637 | return bio->num_read; | |
638 | return 0; | |
639 | } | |
640 | ||
641 | uint64_t BIO_number_written(BIO *bio) | |
642 | { | |
643 | if (bio) | |
644 | return bio->num_write; | |
645 | return 0; | |
646 | } |