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58964a49 | 1 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
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. | |
0f113f3e | 7 | * |
d02b48c6 RE |
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). | |
0f113f3e | 14 | * |
d02b48c6 RE |
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. | |
0f113f3e | 21 | * |
d02b48c6 RE |
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 :-). | |
0f113f3e | 36 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
37 | * the apps directory (application code) you must include an acknowledgement: |
38 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
0f113f3e | 39 | * |
d02b48c6 RE |
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. | |
0f113f3e | 51 | * |
d02b48c6 RE |
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> | |
ec577822 | 60 | #include <openssl/crypto.h> |
b39fc560 | 61 | #include "internal/cryptlib.h" |
ec577822 BM |
62 | #include <openssl/bio.h> |
63 | #include <openssl/stack.h> | |
58964a49 | 64 | |
6b691a5c | 65 | BIO *BIO_new(BIO_METHOD *method) |
0f113f3e | 66 | { |
b4faea50 | 67 | BIO *ret = OPENSSL_malloc(sizeof(*ret)); |
0f113f3e | 68 | |
0f113f3e MC |
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 | } | |
d02b48c6 | 79 | |
6b691a5c | 80 | int BIO_set(BIO *bio, BIO_METHOD *method) |
0f113f3e MC |
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 | if (method->create != NULL) | |
98 | if (!method->create(bio)) { | |
99 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data); | |
100 | return (0); | |
101 | } | |
102 | return (1); | |
103 | } | |
d02b48c6 | 104 | |
6b691a5c | 105 | int BIO_free(BIO *a) |
0f113f3e MC |
106 | { |
107 | int i; | |
d02b48c6 | 108 | |
0f113f3e MC |
109 | if (a == NULL) |
110 | return (0); | |
d02b48c6 | 111 | |
0f113f3e | 112 | i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_BIO); |
58964a49 | 113 | #ifdef REF_PRINT |
0f113f3e | 114 | REF_PRINT("BIO", a); |
58964a49 | 115 | #endif |
0f113f3e MC |
116 | if (i > 0) |
117 | return (1); | |
d02b48c6 | 118 | #ifdef REF_CHECK |
0f113f3e MC |
119 | if (i < 0) { |
120 | fprintf(stderr, "BIO_free, bad reference count\n"); | |
121 | abort(); | |
122 | } | |
d02b48c6 | 123 | #endif |
0f113f3e MC |
124 | if ((a->callback != NULL) && |
125 | ((i = (int)a->callback(a, BIO_CB_FREE, NULL, 0, 0L, 1L)) <= 0)) | |
126 | return (i); | |
d02b48c6 | 127 | |
0f113f3e | 128 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, a, &a->ex_data); |
58964a49 | 129 | |
0f113f3e MC |
130 | if ((a->method != NULL) && (a->method->destroy != NULL)) |
131 | a->method->destroy(a); | |
132 | OPENSSL_free(a); | |
133 | return (1); | |
134 | } | |
d02b48c6 | 135 | |
371acb22 | 136 | void BIO_vfree(BIO *a) |
0f113f3e MC |
137 | { |
138 | BIO_free(a); | |
139 | } | |
371acb22 | 140 | |
7806f3dd | 141 | void BIO_clear_flags(BIO *b, int flags) |
0f113f3e MC |
142 | { |
143 | b->flags &= ~flags; | |
144 | } | |
145 | ||
146 | int BIO_test_flags(const BIO *b, int flags) | |
147 | { | |
148 | return (b->flags & flags); | |
149 | } | |
150 | ||
151 | void BIO_set_flags(BIO *b, int flags) | |
152 | { | |
153 | b->flags |= flags; | |
154 | } | |
155 | ||
156 | long (*BIO_get_callback(const BIO *b)) (struct bio_st *, int, const char *, | |
157 | int, long, long) { | |
158 | return b->callback; | |
159 | } | |
160 | ||
161 | void BIO_set_callback(BIO *b, | |
162 | long (*cb) (struct bio_st *, int, const char *, int, | |
163 | long, long)) | |
164 | { | |
165 | b->callback = cb; | |
166 | } | |
7806f3dd NL |
167 | |
168 | void BIO_set_callback_arg(BIO *b, char *arg) | |
0f113f3e MC |
169 | { |
170 | b->cb_arg = arg; | |
171 | } | |
7806f3dd | 172 | |
0f113f3e MC |
173 | char *BIO_get_callback_arg(const BIO *b) |
174 | { | |
175 | return b->cb_arg; | |
176 | } | |
7806f3dd | 177 | |
0f113f3e MC |
178 | const char *BIO_method_name(const BIO *b) |
179 | { | |
180 | return b->method->name; | |
181 | } | |
7806f3dd NL |
182 | |
183 | int BIO_method_type(const BIO *b) | |
0f113f3e MC |
184 | { |
185 | return b->method->type; | |
186 | } | |
7806f3dd | 187 | |
61f5b6f3 | 188 | int BIO_read(BIO *b, void *out, int outl) |
0f113f3e MC |
189 | { |
190 | int i; | |
191 | long (*cb) (BIO *, int, const char *, int, long, long); | |
d02b48c6 | 192 | |
0f113f3e MC |
193 | if ((b == NULL) || (b->method == NULL) || (b->method->bread == NULL)) { |
194 | BIOerr(BIO_F_BIO_READ, BIO_R_UNSUPPORTED_METHOD); | |
195 | return (-2); | |
196 | } | |
d02b48c6 | 197 | |
0f113f3e MC |
198 | cb = b->callback; |
199 | if ((cb != NULL) && | |
200 | ((i = (int)cb(b, BIO_CB_READ, out, outl, 0L, 1L)) <= 0)) | |
201 | return (i); | |
d02b48c6 | 202 | |
0f113f3e MC |
203 | if (!b->init) { |
204 | BIOerr(BIO_F_BIO_READ, BIO_R_UNINITIALIZED); | |
205 | return (-2); | |
206 | } | |
d02b48c6 | 207 | |
0f113f3e | 208 | i = b->method->bread(b, out, outl); |
dfeab068 | 209 | |
0f113f3e | 210 | if (i > 0) |
b8b12aad | 211 | b->num_read += (uint64_t)i; |
d02b48c6 | 212 | |
0f113f3e MC |
213 | if (cb != NULL) |
214 | i = (int)cb(b, BIO_CB_READ | BIO_CB_RETURN, out, outl, 0L, (long)i); | |
215 | return (i); | |
216 | } | |
d02b48c6 | 217 | |
6343829a | 218 | int BIO_write(BIO *b, const void *in, int inl) |
0f113f3e MC |
219 | { |
220 | int i; | |
221 | long (*cb) (BIO *, int, const char *, int, long, long); | |
58964a49 | 222 | |
0f113f3e MC |
223 | if (b == NULL) |
224 | return (0); | |
d02b48c6 | 225 | |
0f113f3e MC |
226 | cb = b->callback; |
227 | if ((b->method == NULL) || (b->method->bwrite == NULL)) { | |
228 | BIOerr(BIO_F_BIO_WRITE, BIO_R_UNSUPPORTED_METHOD); | |
229 | return (-2); | |
230 | } | |
d02b48c6 | 231 | |
0f113f3e MC |
232 | if ((cb != NULL) && |
233 | ((i = (int)cb(b, BIO_CB_WRITE, in, inl, 0L, 1L)) <= 0)) | |
234 | return (i); | |
d02b48c6 | 235 | |
0f113f3e MC |
236 | if (!b->init) { |
237 | BIOerr(BIO_F_BIO_WRITE, BIO_R_UNINITIALIZED); | |
238 | return (-2); | |
239 | } | |
d02b48c6 | 240 | |
0f113f3e | 241 | i = b->method->bwrite(b, in, inl); |
dfeab068 | 242 | |
0f113f3e | 243 | if (i > 0) |
b8b12aad | 244 | b->num_write += (uint64_t)i; |
d02b48c6 | 245 | |
0f113f3e MC |
246 | if (cb != NULL) |
247 | i = (int)cb(b, BIO_CB_WRITE | BIO_CB_RETURN, in, inl, 0L, (long)i); | |
248 | return (i); | |
249 | } | |
d02b48c6 | 250 | |
6b691a5c | 251 | int BIO_puts(BIO *b, const char *in) |
0f113f3e MC |
252 | { |
253 | int i; | |
254 | long (*cb) (BIO *, int, const char *, int, long, long); | |
d02b48c6 | 255 | |
0f113f3e MC |
256 | if ((b == NULL) || (b->method == NULL) || (b->method->bputs == NULL)) { |
257 | BIOerr(BIO_F_BIO_PUTS, BIO_R_UNSUPPORTED_METHOD); | |
258 | return (-2); | |
259 | } | |
d02b48c6 | 260 | |
0f113f3e | 261 | cb = b->callback; |
58964a49 | 262 | |
0f113f3e MC |
263 | if ((cb != NULL) && ((i = (int)cb(b, BIO_CB_PUTS, in, 0, 0L, 1L)) <= 0)) |
264 | return (i); | |
d02b48c6 | 265 | |
0f113f3e MC |
266 | if (!b->init) { |
267 | BIOerr(BIO_F_BIO_PUTS, BIO_R_UNINITIALIZED); | |
268 | return (-2); | |
269 | } | |
d02b48c6 | 270 | |
0f113f3e | 271 | i = b->method->bputs(b, in); |
d02b48c6 | 272 | |
0f113f3e | 273 | if (i > 0) |
b8b12aad | 274 | b->num_write += (uint64_t)i; |
7d95ff76 | 275 | |
0f113f3e MC |
276 | if (cb != NULL) |
277 | i = (int)cb(b, BIO_CB_PUTS | BIO_CB_RETURN, in, 0, 0L, (long)i); | |
278 | return (i); | |
279 | } | |
d02b48c6 | 280 | |
6b691a5c | 281 | int BIO_gets(BIO *b, char *in, int inl) |
0f113f3e MC |
282 | { |
283 | int i; | |
284 | long (*cb) (BIO *, int, const char *, int, long, long); | |
285 | ||
286 | if ((b == NULL) || (b->method == NULL) || (b->method->bgets == NULL)) { | |
287 | BIOerr(BIO_F_BIO_GETS, BIO_R_UNSUPPORTED_METHOD); | |
288 | return (-2); | |
289 | } | |
290 | ||
291 | cb = b->callback; | |
292 | ||
293 | if ((cb != NULL) && ((i = (int)cb(b, BIO_CB_GETS, in, inl, 0L, 1L)) <= 0)) | |
294 | return (i); | |
295 | ||
296 | if (!b->init) { | |
297 | BIOerr(BIO_F_BIO_GETS, BIO_R_UNINITIALIZED); | |
298 | return (-2); | |
299 | } | |
300 | ||
301 | i = b->method->bgets(b, in, inl); | |
302 | ||
303 | if (cb != NULL) | |
304 | i = (int)cb(b, BIO_CB_GETS | BIO_CB_RETURN, in, inl, 0L, (long)i); | |
305 | return (i); | |
306 | } | |
307 | ||
308 | int BIO_indent(BIO *b, int indent, int max) | |
309 | { | |
310 | if (indent < 0) | |
311 | indent = 0; | |
312 | if (indent > max) | |
313 | indent = max; | |
314 | while (indent--) | |
315 | if (BIO_puts(b, " ") != 1) | |
316 | return 0; | |
317 | return 1; | |
318 | } | |
54a656ef | 319 | |
6b691a5c | 320 | long BIO_int_ctrl(BIO *b, int cmd, long larg, int iarg) |
0f113f3e MC |
321 | { |
322 | int i; | |
d02b48c6 | 323 | |
0f113f3e MC |
324 | i = iarg; |
325 | return (BIO_ctrl(b, cmd, larg, (char *)&i)); | |
326 | } | |
d02b48c6 | 327 | |
6b691a5c | 328 | char *BIO_ptr_ctrl(BIO *b, int cmd, long larg) |
0f113f3e MC |
329 | { |
330 | char *p = NULL; | |
58964a49 | 331 | |
0f113f3e MC |
332 | if (BIO_ctrl(b, cmd, larg, (char *)&p) <= 0) |
333 | return (NULL); | |
334 | else | |
335 | return (p); | |
336 | } | |
58964a49 | 337 | |
95d29597 | 338 | long BIO_ctrl(BIO *b, int cmd, long larg, void *parg) |
0f113f3e MC |
339 | { |
340 | long ret; | |
341 | long (*cb) (BIO *, int, const char *, int, long, long); | |
d02b48c6 | 342 | |
0f113f3e MC |
343 | if (b == NULL) |
344 | return (0); | |
d02b48c6 | 345 | |
0f113f3e MC |
346 | if ((b->method == NULL) || (b->method->ctrl == NULL)) { |
347 | BIOerr(BIO_F_BIO_CTRL, BIO_R_UNSUPPORTED_METHOD); | |
348 | return (-2); | |
349 | } | |
d02b48c6 | 350 | |
0f113f3e | 351 | cb = b->callback; |
58964a49 | 352 | |
0f113f3e MC |
353 | if ((cb != NULL) && |
354 | ((ret = cb(b, BIO_CB_CTRL, parg, cmd, larg, 1L)) <= 0)) | |
355 | return (ret); | |
d02b48c6 | 356 | |
0f113f3e | 357 | ret = b->method->ctrl(b, cmd, larg, parg); |
d02b48c6 | 358 | |
0f113f3e MC |
359 | if (cb != NULL) |
360 | ret = cb(b, BIO_CB_CTRL | BIO_CB_RETURN, parg, cmd, larg, ret); | |
361 | return (ret); | |
362 | } | |
d02b48c6 | 363 | |
0f113f3e MC |
364 | long BIO_callback_ctrl(BIO *b, int cmd, |
365 | void (*fp) (struct bio_st *, int, const char *, int, | |
366 | long, long)) | |
367 | { | |
368 | long ret; | |
369 | long (*cb) (BIO *, int, const char *, int, long, long); | |
d3442bc7 | 370 | |
0f113f3e MC |
371 | if (b == NULL) |
372 | return (0); | |
d3442bc7 | 373 | |
0f113f3e MC |
374 | if ((b->method == NULL) || (b->method->callback_ctrl == NULL)) { |
375 | BIOerr(BIO_F_BIO_CALLBACK_CTRL, BIO_R_UNSUPPORTED_METHOD); | |
376 | return (-2); | |
377 | } | |
d3442bc7 | 378 | |
0f113f3e | 379 | cb = b->callback; |
d3442bc7 | 380 | |
0f113f3e MC |
381 | if ((cb != NULL) && |
382 | ((ret = cb(b, BIO_CB_CTRL, (void *)&fp, cmd, 0, 1L)) <= 0)) | |
383 | return (ret); | |
d3442bc7 | 384 | |
0f113f3e | 385 | ret = b->method->callback_ctrl(b, cmd, fp); |
d3442bc7 | 386 | |
0f113f3e MC |
387 | if (cb != NULL) |
388 | ret = cb(b, BIO_CB_CTRL | BIO_CB_RETURN, (void *)&fp, cmd, 0, ret); | |
389 | return (ret); | |
390 | } | |
d3442bc7 | 391 | |
0f113f3e MC |
392 | /* |
393 | * It is unfortunate to duplicate in functions what the BIO_(w)pending macros | |
95d29597 | 394 | * do; but those macros have inappropriate return type, and for interfacing |
0f113f3e MC |
395 | * from other programming languages, C macros aren't much of a help anyway. |
396 | */ | |
95d29597 | 397 | size_t BIO_ctrl_pending(BIO *bio) |
0f113f3e MC |
398 | { |
399 | return BIO_ctrl(bio, BIO_CTRL_PENDING, 0, NULL); | |
400 | } | |
95d29597 BM |
401 | |
402 | size_t BIO_ctrl_wpending(BIO *bio) | |
0f113f3e MC |
403 | { |
404 | return BIO_ctrl(bio, BIO_CTRL_WPENDING, 0, NULL); | |
405 | } | |
95d29597 | 406 | |
d02b48c6 | 407 | /* put the 'bio' on the end of b's list of operators */ |
6b691a5c | 408 | BIO *BIO_push(BIO *b, BIO *bio) |
0f113f3e MC |
409 | { |
410 | BIO *lb; | |
411 | ||
412 | if (b == NULL) | |
413 | return (bio); | |
414 | lb = b; | |
415 | while (lb->next_bio != NULL) | |
416 | lb = lb->next_bio; | |
417 | lb->next_bio = bio; | |
418 | if (bio != NULL) | |
419 | bio->prev_bio = lb; | |
420 | /* called to do internal processing */ | |
421 | BIO_ctrl(b, BIO_CTRL_PUSH, 0, lb); | |
422 | return (b); | |
423 | } | |
d02b48c6 RE |
424 | |
425 | /* Remove the first and return the rest */ | |
6b691a5c | 426 | BIO *BIO_pop(BIO *b) |
0f113f3e MC |
427 | { |
428 | BIO *ret; | |
d02b48c6 | 429 | |
0f113f3e MC |
430 | if (b == NULL) |
431 | return (NULL); | |
432 | ret = b->next_bio; | |
d02b48c6 | 433 | |
0f113f3e | 434 | BIO_ctrl(b, BIO_CTRL_POP, 0, b); |
5d780bab | 435 | |
0f113f3e MC |
436 | if (b->prev_bio != NULL) |
437 | b->prev_bio->next_bio = b->next_bio; | |
438 | if (b->next_bio != NULL) | |
439 | b->next_bio->prev_bio = b->prev_bio; | |
d02b48c6 | 440 | |
0f113f3e MC |
441 | b->next_bio = NULL; |
442 | b->prev_bio = NULL; | |
443 | return (ret); | |
444 | } | |
d02b48c6 | 445 | |
6b691a5c | 446 | BIO *BIO_get_retry_BIO(BIO *bio, int *reason) |
0f113f3e MC |
447 | { |
448 | BIO *b, *last; | |
449 | ||
450 | b = last = bio; | |
451 | for (;;) { | |
452 | if (!BIO_should_retry(b)) | |
453 | break; | |
454 | last = b; | |
455 | b = b->next_bio; | |
456 | if (b == NULL) | |
457 | break; | |
458 | } | |
459 | if (reason != NULL) | |
460 | *reason = last->retry_reason; | |
461 | return (last); | |
462 | } | |
d02b48c6 | 463 | |
6b691a5c | 464 | int BIO_get_retry_reason(BIO *bio) |
0f113f3e MC |
465 | { |
466 | return (bio->retry_reason); | |
467 | } | |
d02b48c6 | 468 | |
6b691a5c | 469 | BIO *BIO_find_type(BIO *bio, int type) |
0f113f3e MC |
470 | { |
471 | int mt, mask; | |
472 | ||
cc99bfa7 | 473 | if (bio == NULL) |
0f113f3e MC |
474 | return NULL; |
475 | mask = type & 0xff; | |
476 | do { | |
477 | if (bio->method != NULL) { | |
478 | mt = bio->method->type; | |
479 | ||
480 | if (!mask) { | |
481 | if (mt & type) | |
482 | return (bio); | |
483 | } else if (mt == type) | |
484 | return (bio); | |
485 | } | |
486 | bio = bio->next_bio; | |
487 | } while (bio != NULL); | |
488 | return (NULL); | |
489 | } | |
d02b48c6 | 490 | |
cfd3bb17 | 491 | BIO *BIO_next(BIO *b) |
0f113f3e | 492 | { |
cc99bfa7 | 493 | if (b == NULL) |
0f113f3e MC |
494 | return NULL; |
495 | return b->next_bio; | |
496 | } | |
cfd3bb17 | 497 | |
6b691a5c | 498 | void BIO_free_all(BIO *bio) |
0f113f3e MC |
499 | { |
500 | BIO *b; | |
501 | int ref; | |
502 | ||
503 | while (bio != NULL) { | |
504 | b = bio; | |
505 | ref = b->references; | |
506 | bio = bio->next_bio; | |
507 | BIO_free(b); | |
508 | /* Since ref count > 1, don't free anyone else. */ | |
509 | if (ref > 1) | |
510 | break; | |
511 | } | |
512 | } | |
d02b48c6 | 513 | |
6b691a5c | 514 | BIO *BIO_dup_chain(BIO *in) |
0f113f3e MC |
515 | { |
516 | BIO *ret = NULL, *eoc = NULL, *bio, *new_bio; | |
517 | ||
518 | for (bio = in; bio != NULL; bio = bio->next_bio) { | |
519 | if ((new_bio = BIO_new(bio->method)) == NULL) | |
520 | goto err; | |
521 | new_bio->callback = bio->callback; | |
522 | new_bio->cb_arg = bio->cb_arg; | |
523 | new_bio->init = bio->init; | |
524 | new_bio->shutdown = bio->shutdown; | |
525 | new_bio->flags = bio->flags; | |
526 | ||
527 | /* This will let SSL_s_sock() work with stdin/stdout */ | |
528 | new_bio->num = bio->num; | |
529 | ||
530 | if (!BIO_dup_state(bio, (char *)new_bio)) { | |
531 | BIO_free(new_bio); | |
532 | goto err; | |
533 | } | |
534 | ||
535 | /* copy app data */ | |
536 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_BIO, &new_bio->ex_data, | |
aec54108 MC |
537 | &bio->ex_data)) { |
538 | BIO_free(new_bio); | |
0f113f3e | 539 | goto err; |
aec54108 | 540 | } |
0f113f3e MC |
541 | |
542 | if (ret == NULL) { | |
543 | eoc = new_bio; | |
544 | ret = eoc; | |
545 | } else { | |
546 | BIO_push(eoc, new_bio); | |
547 | eoc = new_bio; | |
548 | } | |
549 | } | |
550 | return (ret); | |
551 | err: | |
aec54108 MC |
552 | BIO_free_all(ret); |
553 | ||
0f113f3e MC |
554 | return (NULL); |
555 | } | |
d02b48c6 | 556 | |
6b691a5c | 557 | void BIO_copy_next_retry(BIO *b) |
0f113f3e MC |
558 | { |
559 | BIO_set_flags(b, BIO_get_retry_flags(b->next_bio)); | |
560 | b->retry_reason = b->next_bio->retry_reason; | |
561 | } | |
d02b48c6 | 562 | |
dd9d233e | 563 | int BIO_set_ex_data(BIO *bio, int idx, void *data) |
0f113f3e MC |
564 | { |
565 | return (CRYPTO_set_ex_data(&(bio->ex_data), idx, data)); | |
566 | } | |
58964a49 | 567 | |
dd9d233e | 568 | void *BIO_get_ex_data(BIO *bio, int idx) |
0f113f3e MC |
569 | { |
570 | return (CRYPTO_get_ex_data(&(bio->ex_data), idx)); | |
571 | } | |
58964a49 | 572 | |
b8b12aad | 573 | uint64_t BIO_number_read(BIO *bio) |
c3ed3b6e | 574 | { |
0f113f3e MC |
575 | if (bio) |
576 | return bio->num_read; | |
577 | return 0; | |
c3ed3b6e DSH |
578 | } |
579 | ||
b8b12aad | 580 | uint64_t BIO_number_written(BIO *bio) |
c3ed3b6e | 581 | { |
0f113f3e MC |
582 | if (bio) |
583 | return bio->num_write; | |
584 | return 0; | |
c3ed3b6e | 585 | } |