]>
Commit | Line | Data |
---|---|---|
d02b48c6 | 1 | /* crypto/bio/bio_lib.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
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. | |
0f113f3e | 8 | * |
d02b48c6 RE |
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). | |
0f113f3e | 15 | * |
d02b48c6 RE |
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. | |
0f113f3e | 22 | * |
d02b48c6 RE |
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 :-). | |
0f113f3e | 37 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
38 | * the apps directory (application code) you must include an acknowledgement: |
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
0f113f3e | 40 | * |
d02b48c6 RE |
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. | |
0f113f3e | 52 | * |
d02b48c6 RE |
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 | #include <stdio.h> | |
60 | #include <errno.h> | |
ec577822 | 61 | #include <openssl/crypto.h> |
b39fc560 | 62 | #include "internal/cryptlib.h" |
ec577822 BM |
63 | #include <openssl/bio.h> |
64 | #include <openssl/stack.h> | |
58964a49 | 65 | |
6b691a5c | 66 | BIO *BIO_new(BIO_METHOD *method) |
0f113f3e | 67 | { |
b4faea50 | 68 | BIO *ret = OPENSSL_malloc(sizeof(*ret)); |
0f113f3e | 69 | |
0f113f3e MC |
70 | if (ret == NULL) { |
71 | BIOerr(BIO_F_BIO_NEW, ERR_R_MALLOC_FAILURE); | |
72 | return (NULL); | |
73 | } | |
74 | if (!BIO_set(ret, method)) { | |
75 | OPENSSL_free(ret); | |
76 | ret = NULL; | |
77 | } | |
78 | return (ret); | |
79 | } | |
d02b48c6 | 80 | |
6b691a5c | 81 | int BIO_set(BIO *bio, BIO_METHOD *method) |
0f113f3e MC |
82 | { |
83 | bio->method = method; | |
84 | bio->callback = NULL; | |
85 | bio->cb_arg = NULL; | |
86 | bio->init = 0; | |
87 | bio->shutdown = 1; | |
88 | bio->flags = 0; | |
89 | bio->retry_reason = 0; | |
90 | bio->num = 0; | |
91 | bio->ptr = NULL; | |
92 | bio->prev_bio = NULL; | |
93 | bio->next_bio = NULL; | |
94 | bio->references = 1; | |
95 | bio->num_read = 0L; | |
96 | bio->num_write = 0L; | |
97 | CRYPTO_new_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data); | |
98 | if (method->create != NULL) | |
99 | if (!method->create(bio)) { | |
100 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data); | |
101 | return (0); | |
102 | } | |
103 | return (1); | |
104 | } | |
d02b48c6 | 105 | |
6b691a5c | 106 | int BIO_free(BIO *a) |
0f113f3e MC |
107 | { |
108 | int i; | |
d02b48c6 | 109 | |
0f113f3e MC |
110 | if (a == NULL) |
111 | return (0); | |
d02b48c6 | 112 | |
0f113f3e | 113 | i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_BIO); |
58964a49 | 114 | #ifdef REF_PRINT |
0f113f3e | 115 | REF_PRINT("BIO", a); |
58964a49 | 116 | #endif |
0f113f3e MC |
117 | if (i > 0) |
118 | return (1); | |
d02b48c6 | 119 | #ifdef REF_CHECK |
0f113f3e MC |
120 | if (i < 0) { |
121 | fprintf(stderr, "BIO_free, bad reference count\n"); | |
122 | abort(); | |
123 | } | |
d02b48c6 | 124 | #endif |
0f113f3e MC |
125 | if ((a->callback != NULL) && |
126 | ((i = (int)a->callback(a, BIO_CB_FREE, NULL, 0, 0L, 1L)) <= 0)) | |
127 | return (i); | |
d02b48c6 | 128 | |
0f113f3e | 129 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, a, &a->ex_data); |
58964a49 | 130 | |
0f113f3e MC |
131 | if ((a->method != NULL) && (a->method->destroy != NULL)) |
132 | a->method->destroy(a); | |
133 | OPENSSL_free(a); | |
134 | return (1); | |
135 | } | |
d02b48c6 | 136 | |
371acb22 | 137 | void BIO_vfree(BIO *a) |
0f113f3e MC |
138 | { |
139 | BIO_free(a); | |
140 | } | |
371acb22 | 141 | |
7806f3dd | 142 | void BIO_clear_flags(BIO *b, int flags) |
0f113f3e MC |
143 | { |
144 | b->flags &= ~flags; | |
145 | } | |
146 | ||
147 | int BIO_test_flags(const BIO *b, int flags) | |
148 | { | |
149 | return (b->flags & flags); | |
150 | } | |
151 | ||
152 | void BIO_set_flags(BIO *b, int flags) | |
153 | { | |
154 | b->flags |= flags; | |
155 | } | |
156 | ||
157 | long (*BIO_get_callback(const BIO *b)) (struct bio_st *, int, const char *, | |
158 | int, long, long) { | |
159 | return b->callback; | |
160 | } | |
161 | ||
162 | void BIO_set_callback(BIO *b, | |
163 | long (*cb) (struct bio_st *, int, const char *, int, | |
164 | long, long)) | |
165 | { | |
166 | b->callback = cb; | |
167 | } | |
7806f3dd NL |
168 | |
169 | void BIO_set_callback_arg(BIO *b, char *arg) | |
0f113f3e MC |
170 | { |
171 | b->cb_arg = arg; | |
172 | } | |
7806f3dd | 173 | |
0f113f3e MC |
174 | char *BIO_get_callback_arg(const BIO *b) |
175 | { | |
176 | return b->cb_arg; | |
177 | } | |
7806f3dd | 178 | |
0f113f3e MC |
179 | const char *BIO_method_name(const BIO *b) |
180 | { | |
181 | return b->method->name; | |
182 | } | |
7806f3dd NL |
183 | |
184 | int BIO_method_type(const BIO *b) | |
0f113f3e MC |
185 | { |
186 | return b->method->type; | |
187 | } | |
7806f3dd | 188 | |
61f5b6f3 | 189 | int BIO_read(BIO *b, void *out, int outl) |
0f113f3e MC |
190 | { |
191 | int i; | |
192 | long (*cb) (BIO *, int, const char *, int, long, long); | |
d02b48c6 | 193 | |
0f113f3e MC |
194 | if ((b == NULL) || (b->method == NULL) || (b->method->bread == NULL)) { |
195 | BIOerr(BIO_F_BIO_READ, BIO_R_UNSUPPORTED_METHOD); | |
196 | return (-2); | |
197 | } | |
d02b48c6 | 198 | |
0f113f3e MC |
199 | cb = b->callback; |
200 | if ((cb != NULL) && | |
201 | ((i = (int)cb(b, BIO_CB_READ, out, outl, 0L, 1L)) <= 0)) | |
202 | return (i); | |
d02b48c6 | 203 | |
0f113f3e MC |
204 | if (!b->init) { |
205 | BIOerr(BIO_F_BIO_READ, BIO_R_UNINITIALIZED); | |
206 | return (-2); | |
207 | } | |
d02b48c6 | 208 | |
0f113f3e | 209 | i = b->method->bread(b, out, outl); |
dfeab068 | 210 | |
0f113f3e MC |
211 | if (i > 0) |
212 | b->num_read += (unsigned long)i; | |
d02b48c6 | 213 | |
0f113f3e MC |
214 | if (cb != NULL) |
215 | i = (int)cb(b, BIO_CB_READ | BIO_CB_RETURN, out, outl, 0L, (long)i); | |
216 | return (i); | |
217 | } | |
d02b48c6 | 218 | |
6343829a | 219 | int BIO_write(BIO *b, const void *in, int inl) |
0f113f3e MC |
220 | { |
221 | int i; | |
222 | long (*cb) (BIO *, int, const char *, int, long, long); | |
58964a49 | 223 | |
0f113f3e MC |
224 | if (b == NULL) |
225 | return (0); | |
d02b48c6 | 226 | |
0f113f3e MC |
227 | cb = b->callback; |
228 | if ((b->method == NULL) || (b->method->bwrite == NULL)) { | |
229 | BIOerr(BIO_F_BIO_WRITE, BIO_R_UNSUPPORTED_METHOD); | |
230 | return (-2); | |
231 | } | |
d02b48c6 | 232 | |
0f113f3e MC |
233 | if ((cb != NULL) && |
234 | ((i = (int)cb(b, BIO_CB_WRITE, in, inl, 0L, 1L)) <= 0)) | |
235 | return (i); | |
d02b48c6 | 236 | |
0f113f3e MC |
237 | if (!b->init) { |
238 | BIOerr(BIO_F_BIO_WRITE, BIO_R_UNINITIALIZED); | |
239 | return (-2); | |
240 | } | |
d02b48c6 | 241 | |
0f113f3e | 242 | i = b->method->bwrite(b, in, inl); |
dfeab068 | 243 | |
0f113f3e MC |
244 | if (i > 0) |
245 | b->num_write += (unsigned long)i; | |
d02b48c6 | 246 | |
0f113f3e MC |
247 | if (cb != NULL) |
248 | i = (int)cb(b, BIO_CB_WRITE | BIO_CB_RETURN, in, inl, 0L, (long)i); | |
249 | return (i); | |
250 | } | |
d02b48c6 | 251 | |
6b691a5c | 252 | int BIO_puts(BIO *b, const char *in) |
0f113f3e MC |
253 | { |
254 | int i; | |
255 | long (*cb) (BIO *, int, const char *, int, long, long); | |
d02b48c6 | 256 | |
0f113f3e MC |
257 | if ((b == NULL) || (b->method == NULL) || (b->method->bputs == NULL)) { |
258 | BIOerr(BIO_F_BIO_PUTS, BIO_R_UNSUPPORTED_METHOD); | |
259 | return (-2); | |
260 | } | |
d02b48c6 | 261 | |
0f113f3e | 262 | cb = b->callback; |
58964a49 | 263 | |
0f113f3e MC |
264 | if ((cb != NULL) && ((i = (int)cb(b, BIO_CB_PUTS, in, 0, 0L, 1L)) <= 0)) |
265 | return (i); | |
d02b48c6 | 266 | |
0f113f3e MC |
267 | if (!b->init) { |
268 | BIOerr(BIO_F_BIO_PUTS, BIO_R_UNINITIALIZED); | |
269 | return (-2); | |
270 | } | |
d02b48c6 | 271 | |
0f113f3e | 272 | i = b->method->bputs(b, in); |
d02b48c6 | 273 | |
0f113f3e MC |
274 | if (i > 0) |
275 | b->num_write += (unsigned long)i; | |
7d95ff76 | 276 | |
0f113f3e MC |
277 | if (cb != NULL) |
278 | i = (int)cb(b, BIO_CB_PUTS | BIO_CB_RETURN, in, 0, 0L, (long)i); | |
279 | return (i); | |
280 | } | |
d02b48c6 | 281 | |
6b691a5c | 282 | int BIO_gets(BIO *b, char *in, int inl) |
0f113f3e MC |
283 | { |
284 | int i; | |
285 | long (*cb) (BIO *, int, const char *, int, long, long); | |
286 | ||
287 | if ((b == NULL) || (b->method == NULL) || (b->method->bgets == NULL)) { | |
288 | BIOerr(BIO_F_BIO_GETS, BIO_R_UNSUPPORTED_METHOD); | |
289 | return (-2); | |
290 | } | |
291 | ||
292 | cb = b->callback; | |
293 | ||
294 | if ((cb != NULL) && ((i = (int)cb(b, BIO_CB_GETS, in, inl, 0L, 1L)) <= 0)) | |
295 | return (i); | |
296 | ||
297 | if (!b->init) { | |
298 | BIOerr(BIO_F_BIO_GETS, BIO_R_UNINITIALIZED); | |
299 | return (-2); | |
300 | } | |
301 | ||
302 | i = b->method->bgets(b, in, inl); | |
303 | ||
304 | if (cb != NULL) | |
305 | i = (int)cb(b, BIO_CB_GETS | BIO_CB_RETURN, in, inl, 0L, (long)i); | |
306 | return (i); | |
307 | } | |
308 | ||
309 | int BIO_indent(BIO *b, int indent, int max) | |
310 | { | |
311 | if (indent < 0) | |
312 | indent = 0; | |
313 | if (indent > max) | |
314 | indent = max; | |
315 | while (indent--) | |
316 | if (BIO_puts(b, " ") != 1) | |
317 | return 0; | |
318 | return 1; | |
319 | } | |
54a656ef | 320 | |
6b691a5c | 321 | long BIO_int_ctrl(BIO *b, int cmd, long larg, int iarg) |
0f113f3e MC |
322 | { |
323 | int i; | |
d02b48c6 | 324 | |
0f113f3e MC |
325 | i = iarg; |
326 | return (BIO_ctrl(b, cmd, larg, (char *)&i)); | |
327 | } | |
d02b48c6 | 328 | |
6b691a5c | 329 | char *BIO_ptr_ctrl(BIO *b, int cmd, long larg) |
0f113f3e MC |
330 | { |
331 | char *p = NULL; | |
58964a49 | 332 | |
0f113f3e MC |
333 | if (BIO_ctrl(b, cmd, larg, (char *)&p) <= 0) |
334 | return (NULL); | |
335 | else | |
336 | return (p); | |
337 | } | |
58964a49 | 338 | |
95d29597 | 339 | long BIO_ctrl(BIO *b, int cmd, long larg, void *parg) |
0f113f3e MC |
340 | { |
341 | long ret; | |
342 | long (*cb) (BIO *, int, const char *, int, long, long); | |
d02b48c6 | 343 | |
0f113f3e MC |
344 | if (b == NULL) |
345 | return (0); | |
d02b48c6 | 346 | |
0f113f3e MC |
347 | if ((b->method == NULL) || (b->method->ctrl == NULL)) { |
348 | BIOerr(BIO_F_BIO_CTRL, BIO_R_UNSUPPORTED_METHOD); | |
349 | return (-2); | |
350 | } | |
d02b48c6 | 351 | |
0f113f3e | 352 | cb = b->callback; |
58964a49 | 353 | |
0f113f3e MC |
354 | if ((cb != NULL) && |
355 | ((ret = cb(b, BIO_CB_CTRL, parg, cmd, larg, 1L)) <= 0)) | |
356 | return (ret); | |
d02b48c6 | 357 | |
0f113f3e | 358 | ret = b->method->ctrl(b, cmd, larg, parg); |
d02b48c6 | 359 | |
0f113f3e MC |
360 | if (cb != NULL) |
361 | ret = cb(b, BIO_CB_CTRL | BIO_CB_RETURN, parg, cmd, larg, ret); | |
362 | return (ret); | |
363 | } | |
d02b48c6 | 364 | |
0f113f3e MC |
365 | long BIO_callback_ctrl(BIO *b, int cmd, |
366 | void (*fp) (struct bio_st *, int, const char *, int, | |
367 | long, long)) | |
368 | { | |
369 | long ret; | |
370 | long (*cb) (BIO *, int, const char *, int, long, long); | |
d3442bc7 | 371 | |
0f113f3e MC |
372 | if (b == NULL) |
373 | return (0); | |
d3442bc7 | 374 | |
0f113f3e MC |
375 | if ((b->method == NULL) || (b->method->callback_ctrl == NULL)) { |
376 | BIOerr(BIO_F_BIO_CALLBACK_CTRL, BIO_R_UNSUPPORTED_METHOD); | |
377 | return (-2); | |
378 | } | |
d3442bc7 | 379 | |
0f113f3e | 380 | cb = b->callback; |
d3442bc7 | 381 | |
0f113f3e MC |
382 | if ((cb != NULL) && |
383 | ((ret = cb(b, BIO_CB_CTRL, (void *)&fp, cmd, 0, 1L)) <= 0)) | |
384 | return (ret); | |
d3442bc7 | 385 | |
0f113f3e | 386 | ret = b->method->callback_ctrl(b, cmd, fp); |
d3442bc7 | 387 | |
0f113f3e MC |
388 | if (cb != NULL) |
389 | ret = cb(b, BIO_CB_CTRL | BIO_CB_RETURN, (void *)&fp, cmd, 0, ret); | |
390 | return (ret); | |
391 | } | |
d3442bc7 | 392 | |
0f113f3e MC |
393 | /* |
394 | * It is unfortunate to duplicate in functions what the BIO_(w)pending macros | |
95d29597 | 395 | * do; but those macros have inappropriate return type, and for interfacing |
0f113f3e MC |
396 | * from other programming languages, C macros aren't much of a help anyway. |
397 | */ | |
95d29597 | 398 | size_t BIO_ctrl_pending(BIO *bio) |
0f113f3e MC |
399 | { |
400 | return BIO_ctrl(bio, BIO_CTRL_PENDING, 0, NULL); | |
401 | } | |
95d29597 BM |
402 | |
403 | size_t BIO_ctrl_wpending(BIO *bio) | |
0f113f3e MC |
404 | { |
405 | return BIO_ctrl(bio, BIO_CTRL_WPENDING, 0, NULL); | |
406 | } | |
95d29597 | 407 | |
d02b48c6 | 408 | /* put the 'bio' on the end of b's list of operators */ |
6b691a5c | 409 | BIO *BIO_push(BIO *b, BIO *bio) |
0f113f3e MC |
410 | { |
411 | BIO *lb; | |
412 | ||
413 | if (b == NULL) | |
414 | return (bio); | |
415 | lb = b; | |
416 | while (lb->next_bio != NULL) | |
417 | lb = lb->next_bio; | |
418 | lb->next_bio = bio; | |
419 | if (bio != NULL) | |
420 | bio->prev_bio = lb; | |
421 | /* called to do internal processing */ | |
422 | BIO_ctrl(b, BIO_CTRL_PUSH, 0, lb); | |
423 | return (b); | |
424 | } | |
d02b48c6 RE |
425 | |
426 | /* Remove the first and return the rest */ | |
6b691a5c | 427 | BIO *BIO_pop(BIO *b) |
0f113f3e MC |
428 | { |
429 | BIO *ret; | |
d02b48c6 | 430 | |
0f113f3e MC |
431 | if (b == NULL) |
432 | return (NULL); | |
433 | ret = b->next_bio; | |
d02b48c6 | 434 | |
0f113f3e | 435 | BIO_ctrl(b, BIO_CTRL_POP, 0, b); |
5d780bab | 436 | |
0f113f3e MC |
437 | if (b->prev_bio != NULL) |
438 | b->prev_bio->next_bio = b->next_bio; | |
439 | if (b->next_bio != NULL) | |
440 | b->next_bio->prev_bio = b->prev_bio; | |
d02b48c6 | 441 | |
0f113f3e MC |
442 | b->next_bio = NULL; |
443 | b->prev_bio = NULL; | |
444 | return (ret); | |
445 | } | |
d02b48c6 | 446 | |
6b691a5c | 447 | BIO *BIO_get_retry_BIO(BIO *bio, int *reason) |
0f113f3e MC |
448 | { |
449 | BIO *b, *last; | |
450 | ||
451 | b = last = bio; | |
452 | for (;;) { | |
453 | if (!BIO_should_retry(b)) | |
454 | break; | |
455 | last = b; | |
456 | b = b->next_bio; | |
457 | if (b == NULL) | |
458 | break; | |
459 | } | |
460 | if (reason != NULL) | |
461 | *reason = last->retry_reason; | |
462 | return (last); | |
463 | } | |
d02b48c6 | 464 | |
6b691a5c | 465 | int BIO_get_retry_reason(BIO *bio) |
0f113f3e MC |
466 | { |
467 | return (bio->retry_reason); | |
468 | } | |
d02b48c6 | 469 | |
6b691a5c | 470 | BIO *BIO_find_type(BIO *bio, int type) |
0f113f3e MC |
471 | { |
472 | int mt, mask; | |
473 | ||
474 | if (!bio) | |
475 | return NULL; | |
476 | mask = type & 0xff; | |
477 | do { | |
478 | if (bio->method != NULL) { | |
479 | mt = bio->method->type; | |
480 | ||
481 | if (!mask) { | |
482 | if (mt & type) | |
483 | return (bio); | |
484 | } else if (mt == type) | |
485 | return (bio); | |
486 | } | |
487 | bio = bio->next_bio; | |
488 | } while (bio != NULL); | |
489 | return (NULL); | |
490 | } | |
d02b48c6 | 491 | |
cfd3bb17 | 492 | BIO *BIO_next(BIO *b) |
0f113f3e MC |
493 | { |
494 | if (!b) | |
495 | return NULL; | |
496 | return b->next_bio; | |
497 | } | |
cfd3bb17 | 498 | |
6b691a5c | 499 | void BIO_free_all(BIO *bio) |
0f113f3e MC |
500 | { |
501 | BIO *b; | |
502 | int ref; | |
503 | ||
504 | while (bio != NULL) { | |
505 | b = bio; | |
506 | ref = b->references; | |
507 | bio = bio->next_bio; | |
508 | BIO_free(b); | |
509 | /* Since ref count > 1, don't free anyone else. */ | |
510 | if (ref > 1) | |
511 | break; | |
512 | } | |
513 | } | |
d02b48c6 | 514 | |
6b691a5c | 515 | BIO *BIO_dup_chain(BIO *in) |
0f113f3e MC |
516 | { |
517 | BIO *ret = NULL, *eoc = NULL, *bio, *new_bio; | |
518 | ||
519 | for (bio = in; bio != NULL; bio = bio->next_bio) { | |
520 | if ((new_bio = BIO_new(bio->method)) == NULL) | |
521 | goto err; | |
522 | new_bio->callback = bio->callback; | |
523 | new_bio->cb_arg = bio->cb_arg; | |
524 | new_bio->init = bio->init; | |
525 | new_bio->shutdown = bio->shutdown; | |
526 | new_bio->flags = bio->flags; | |
527 | ||
528 | /* This will let SSL_s_sock() work with stdin/stdout */ | |
529 | new_bio->num = bio->num; | |
530 | ||
531 | if (!BIO_dup_state(bio, (char *)new_bio)) { | |
532 | BIO_free(new_bio); | |
533 | goto err; | |
534 | } | |
535 | ||
536 | /* copy app data */ | |
537 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_BIO, &new_bio->ex_data, | |
538 | &bio->ex_data)) | |
539 | goto err; | |
540 | ||
541 | if (ret == NULL) { | |
542 | eoc = new_bio; | |
543 | ret = eoc; | |
544 | } else { | |
545 | BIO_push(eoc, new_bio); | |
546 | eoc = new_bio; | |
547 | } | |
548 | } | |
549 | return (ret); | |
550 | err: | |
ca3a82c3 | 551 | BIO_free(ret); |
0f113f3e MC |
552 | return (NULL); |
553 | } | |
d02b48c6 | 554 | |
6b691a5c | 555 | void BIO_copy_next_retry(BIO *b) |
0f113f3e MC |
556 | { |
557 | BIO_set_flags(b, BIO_get_retry_flags(b->next_bio)); | |
558 | b->retry_reason = b->next_bio->retry_reason; | |
559 | } | |
d02b48c6 | 560 | |
dd9d233e | 561 | int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, |
0f113f3e MC |
562 | CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) |
563 | { | |
564 | return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_BIO, argl, argp, | |
565 | new_func, dup_func, free_func); | |
566 | } | |
58964a49 | 567 | |
dd9d233e | 568 | int BIO_set_ex_data(BIO *bio, int idx, void *data) |
0f113f3e MC |
569 | { |
570 | return (CRYPTO_set_ex_data(&(bio->ex_data), idx, data)); | |
571 | } | |
58964a49 | 572 | |
dd9d233e | 573 | void *BIO_get_ex_data(BIO *bio, int idx) |
0f113f3e MC |
574 | { |
575 | return (CRYPTO_get_ex_data(&(bio->ex_data), idx)); | |
576 | } | |
58964a49 | 577 | |
c3ed3b6e DSH |
578 | unsigned long BIO_number_read(BIO *bio) |
579 | { | |
0f113f3e MC |
580 | if (bio) |
581 | return bio->num_read; | |
582 | return 0; | |
c3ed3b6e DSH |
583 | } |
584 | ||
585 | unsigned long BIO_number_written(BIO *bio) | |
586 | { | |
0f113f3e MC |
587 | if (bio) |
588 | return bio->num_write; | |
589 | return 0; | |
c3ed3b6e | 590 | } |