1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/ssl/libcrypto/src/crypto/bio/bio_lib.c Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,603 @@
1.4 +/* crypto/bio/bio_lib.c */
1.5 +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
1.6 + * All rights reserved.
1.7 + *
1.8 + * This package is an SSL implementation written
1.9 + * by Eric Young (eay@cryptsoft.com).
1.10 + * The implementation was written so as to conform with Netscapes SSL.
1.11 + *
1.12 + * This library is free for commercial and non-commercial use as long as
1.13 + * the following conditions are aheared to. The following conditions
1.14 + * apply to all code found in this distribution, be it the RC4, RSA,
1.15 + * lhash, DES, etc., code; not just the SSL code. The SSL documentation
1.16 + * included with this distribution is covered by the same copyright terms
1.17 + * except that the holder is Tim Hudson (tjh@cryptsoft.com).
1.18 + *
1.19 + * Copyright remains Eric Young's, and as such any Copyright notices in
1.20 + * the code are not to be removed.
1.21 + * If this package is used in a product, Eric Young should be given attribution
1.22 + * as the author of the parts of the library used.
1.23 + * This can be in the form of a textual message at program startup or
1.24 + * in documentation (online or textual) provided with the package.
1.25 + *
1.26 + * Redistribution and use in source and binary forms, with or without
1.27 + * modification, are permitted provided that the following conditions
1.28 + * are met:
1.29 + * 1. Redistributions of source code must retain the copyright
1.30 + * notice, this list of conditions and the following disclaimer.
1.31 + * 2. Redistributions in binary form must reproduce the above copyright
1.32 + * notice, this list of conditions and the following disclaimer in the
1.33 + * documentation and/or other materials provided with the distribution.
1.34 + * 3. All advertising materials mentioning features or use of this software
1.35 + * must display the following acknowledgement:
1.36 + * "This product includes cryptographic software written by
1.37 + * Eric Young (eay@cryptsoft.com)"
1.38 + * The word 'cryptographic' can be left out if the rouines from the library
1.39 + * being used are not cryptographic related :-).
1.40 + * 4. If you include any Windows specific code (or a derivative thereof) from
1.41 + * the apps directory (application code) you must include an acknowledgement:
1.42 + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
1.43 + *
1.44 + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
1.45 + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.46 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.47 + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1.48 + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.49 + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.50 + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.51 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.52 + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.53 + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.54 + * SUCH DAMAGE.
1.55 + *
1.56 + * The licence and distribution terms for any publically available version or
1.57 + * derivative of this code cannot be changed. i.e. this code cannot simply be
1.58 + * copied and put under another distribution licence
1.59 + * [including the GNU Public Licence.]
1.60 + */
1.61 +
1.62 +#include <stdio.h>
1.63 +#include <errno.h>
1.64 +#include <openssl/crypto.h>
1.65 +#include "cryptlib.h"
1.66 +#include <openssl/bio.h>
1.67 +#include <openssl/stack.h>
1.68 +
1.69 +EXPORT_C BIO *BIO_new(BIO_METHOD *method)
1.70 + {
1.71 + BIO *ret=NULL;
1.72 +
1.73 + ret=(BIO *)OPENSSL_malloc(sizeof(BIO));
1.74 + if (ret == NULL)
1.75 + {
1.76 + BIOerr(BIO_F_BIO_NEW,ERR_R_MALLOC_FAILURE);
1.77 + return(NULL);
1.78 + }
1.79 +#ifdef SYMBIAN
1.80 + memset(ret,0,sizeof(BIO));
1.81 +#endif
1.82 + if (!BIO_set(ret,method))
1.83 + {
1.84 + OPENSSL_free(ret);
1.85 + ret=NULL;
1.86 + }
1.87 + return(ret);
1.88 + }
1.89 +
1.90 +EXPORT_C int BIO_set(BIO *bio, BIO_METHOD *method)
1.91 + {
1.92 + bio->method=method;
1.93 + bio->callback=NULL;
1.94 + bio->cb_arg=NULL;
1.95 + bio->init=0;
1.96 + bio->shutdown=1;
1.97 + bio->flags=0;
1.98 + bio->retry_reason=0;
1.99 + bio->num=0;
1.100 + bio->ptr=NULL;
1.101 + bio->prev_bio=NULL;
1.102 + bio->next_bio=NULL;
1.103 + bio->references=1;
1.104 + bio->num_read=0L;
1.105 + bio->num_write=0L;
1.106 + CRYPTO_new_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data);
1.107 + if (method->create != NULL)
1.108 + if (!method->create(bio))
1.109 + {
1.110 + CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, bio,
1.111 + &bio->ex_data);
1.112 + return(0);
1.113 + }
1.114 + return(1);
1.115 + }
1.116 +
1.117 +EXPORT_C int BIO_free(BIO *a)
1.118 + {
1.119 + int ret=0,i;
1.120 +
1.121 + if (a == NULL) return(0);
1.122 +
1.123 + i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_BIO);
1.124 +#ifdef REF_PRINT
1.125 + REF_PRINT("BIO",a);
1.126 +#endif
1.127 + if (i > 0) return(1);
1.128 +#ifdef REF_CHECK
1.129 + if (i < 0)
1.130 + {
1.131 + fprintf(stderr,"BIO_free, bad reference count\n");
1.132 + abort();
1.133 + }
1.134 +#endif
1.135 + if ((a->callback != NULL) &&
1.136 + ((i=(int)a->callback(a,BIO_CB_FREE,NULL,0,0L,1L)) <= 0))
1.137 + return(i);
1.138 +
1.139 + CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, a, &a->ex_data);
1.140 +
1.141 + if ((a->method == NULL) || (a->method->destroy == NULL)) return(1);
1.142 + ret=a->method->destroy(a);
1.143 + OPENSSL_free(a);
1.144 + return(1);
1.145 + }
1.146 +
1.147 +EXPORT_C void BIO_vfree(BIO *a)
1.148 + { BIO_free(a); }
1.149 +
1.150 +EXPORT_C void BIO_clear_flags(BIO *b, int flags)
1.151 + {
1.152 + b->flags &= ~flags;
1.153 + }
1.154 +
1.155 +EXPORT_C int BIO_test_flags(const BIO *b, int flags)
1.156 + {
1.157 + return (b->flags & flags);
1.158 + }
1.159 +
1.160 +EXPORT_C void BIO_set_flags(BIO *b, int flags)
1.161 + {
1.162 + b->flags |= flags;
1.163 + }
1.164 +
1.165 +EXPORT_C long (*BIO_get_callback(const BIO *b))(struct bio_st *,int,const char *,int, long,long)
1.166 + {
1.167 + return b->callback;
1.168 + }
1.169 +
1.170 +EXPORT_C void BIO_set_callback(BIO *b, long (*cb)(struct bio_st *,int,const char *,int, long,long))
1.171 + {
1.172 + b->callback = cb;
1.173 + }
1.174 +
1.175 +EXPORT_C void BIO_set_callback_arg(BIO *b, char *arg)
1.176 + {
1.177 + b->cb_arg = arg;
1.178 + }
1.179 +
1.180 +EXPORT_C char * BIO_get_callback_arg(const BIO *b)
1.181 + {
1.182 + return b->cb_arg;
1.183 + }
1.184 +
1.185 +EXPORT_C const char * BIO_method_name(const BIO *b)
1.186 + {
1.187 + return b->method->name;
1.188 + }
1.189 +
1.190 +EXPORT_C int BIO_method_type(const BIO *b)
1.191 + {
1.192 + return b->method->type;
1.193 + }
1.194 +EXPORT_C int BIO_read(BIO *b, void *out, int outl)
1.195 + {
1.196 + int i;
1.197 + long (*cb)(BIO *,int,const char *,int,long,long);
1.198 +
1.199 + if ((b == NULL) || (b->method == NULL) || (b->method->bread == NULL))
1.200 + {
1.201 + BIOerr(BIO_F_BIO_READ,BIO_R_UNSUPPORTED_METHOD);
1.202 + return(-2);
1.203 + }
1.204 +
1.205 + cb=b->callback;
1.206 + if ((cb != NULL) &&
1.207 + ((i=(int)cb(b,BIO_CB_READ,out,outl,0L,1L)) <= 0))
1.208 + return(i);
1.209 +
1.210 + if (!b->init)
1.211 + {
1.212 + BIOerr(BIO_F_BIO_READ,BIO_R_UNINITIALIZED);
1.213 + return(-2);
1.214 + }
1.215 +
1.216 + i=b->method->bread(b,out,outl);
1.217 +
1.218 + if (i > 0) b->num_read+=(unsigned long)i;
1.219 +
1.220 + if (cb != NULL)
1.221 + i=(int)cb(b,BIO_CB_READ|BIO_CB_RETURN,out,outl,
1.222 + 0L,(long)i);
1.223 + return(i);
1.224 + }
1.225 +
1.226 +EXPORT_C int BIO_write(BIO *b, const void *in, int inl)
1.227 + {
1.228 + int i;
1.229 + long (*cb)(BIO *,int,const char *,int,long,long);
1.230 +
1.231 + if (b == NULL)
1.232 + return(0);
1.233 +
1.234 + cb=b->callback;
1.235 + if ((b->method == NULL) || (b->method->bwrite == NULL))
1.236 + {
1.237 + BIOerr(BIO_F_BIO_WRITE,BIO_R_UNSUPPORTED_METHOD);
1.238 + return(-2);
1.239 + }
1.240 +
1.241 + if ((cb != NULL) &&
1.242 + ((i=(int)cb(b,BIO_CB_WRITE,in,inl,0L,1L)) <= 0))
1.243 + return(i);
1.244 +
1.245 + if (!b->init)
1.246 + {
1.247 + BIOerr(BIO_F_BIO_WRITE,BIO_R_UNINITIALIZED);
1.248 + return(-2);
1.249 + }
1.250 +
1.251 + i=b->method->bwrite(b,in,inl);
1.252 +
1.253 + if (i > 0) b->num_write+=(unsigned long)i;
1.254 +
1.255 + if (cb != NULL)
1.256 + i=(int)cb(b,BIO_CB_WRITE|BIO_CB_RETURN,in,inl,
1.257 + 0L,(long)i);
1.258 + return(i);
1.259 + }
1.260 +
1.261 +EXPORT_C int BIO_puts(BIO *b, const char *in)
1.262 + {
1.263 + int i;
1.264 + long (*cb)(BIO *,int,const char *,int,long,long);
1.265 +
1.266 + if ((b == NULL) || (b->method == NULL) || (b->method->bputs == NULL))
1.267 + {
1.268 + BIOerr(BIO_F_BIO_PUTS,BIO_R_UNSUPPORTED_METHOD);
1.269 + return(-2);
1.270 + }
1.271 +
1.272 + cb=b->callback;
1.273 +
1.274 + if ((cb != NULL) &&
1.275 + ((i=(int)cb(b,BIO_CB_PUTS,in,0,0L,1L)) <= 0))
1.276 + return(i);
1.277 +
1.278 + if (!b->init)
1.279 + {
1.280 + BIOerr(BIO_F_BIO_PUTS,BIO_R_UNINITIALIZED);
1.281 + return(-2);
1.282 + }
1.283 +
1.284 + i=b->method->bputs(b,in);
1.285 +
1.286 + if (i > 0) b->num_write+=(unsigned long)i;
1.287 +
1.288 + if (cb != NULL)
1.289 + i=(int)cb(b,BIO_CB_PUTS|BIO_CB_RETURN,in,0,
1.290 + 0L,(long)i);
1.291 + return(i);
1.292 + }
1.293 +
1.294 +EXPORT_C int BIO_gets(BIO *b, char *in, int inl)
1.295 + {
1.296 + int i;
1.297 + long (*cb)(BIO *,int,const char *,int,long,long);
1.298 +
1.299 + if ((b == NULL) || (b->method == NULL) || (b->method->bgets == NULL))
1.300 + {
1.301 + BIOerr(BIO_F_BIO_GETS,BIO_R_UNSUPPORTED_METHOD);
1.302 + return(-2);
1.303 + }
1.304 +
1.305 + cb=b->callback;
1.306 +
1.307 + if ((cb != NULL) &&
1.308 + ((i=(int)cb(b,BIO_CB_GETS,in,inl,0L,1L)) <= 0))
1.309 + return(i);
1.310 +
1.311 + if (!b->init)
1.312 + {
1.313 + BIOerr(BIO_F_BIO_GETS,BIO_R_UNINITIALIZED);
1.314 + return(-2);
1.315 + }
1.316 +
1.317 + i=b->method->bgets(b,in,inl);
1.318 +
1.319 + if (cb != NULL)
1.320 + i=(int)cb(b,BIO_CB_GETS|BIO_CB_RETURN,in,inl,
1.321 + 0L,(long)i);
1.322 + return(i);
1.323 + }
1.324 +
1.325 +EXPORT_C int BIO_indent(BIO *b,int indent,int max)
1.326 + {
1.327 + if(indent < 0)
1.328 + indent=0;
1.329 + if(indent > max)
1.330 + indent=max;
1.331 + while(indent--)
1.332 + if(BIO_puts(b," ") != 1)
1.333 + return 0;
1.334 + return 1;
1.335 + }
1.336 +
1.337 +EXPORT_C long BIO_int_ctrl(BIO *b, int cmd, long larg, int iarg)
1.338 + {
1.339 + int i;
1.340 +
1.341 + i=iarg;
1.342 + return(BIO_ctrl(b,cmd,larg,(char *)&i));
1.343 + }
1.344 +
1.345 +EXPORT_C char *BIO_ptr_ctrl(BIO *b, int cmd, long larg)
1.346 + {
1.347 + char *p=NULL;
1.348 +
1.349 + if (BIO_ctrl(b,cmd,larg,(char *)&p) <= 0)
1.350 + return(NULL);
1.351 + else
1.352 + return(p);
1.353 + }
1.354 +
1.355 +EXPORT_C long BIO_ctrl(BIO *b, int cmd, long larg, void *parg)
1.356 + {
1.357 + long ret;
1.358 + long (*cb)(BIO *,int,const char *,int,long,long);
1.359 +
1.360 + if (b == NULL) return(0);
1.361 +
1.362 + if ((b->method == NULL) || (b->method->ctrl == NULL))
1.363 + {
1.364 + BIOerr(BIO_F_BIO_CTRL,BIO_R_UNSUPPORTED_METHOD);
1.365 + return(-2);
1.366 + }
1.367 +
1.368 + cb=b->callback;
1.369 +
1.370 + if ((cb != NULL) &&
1.371 + ((ret=cb(b,BIO_CB_CTRL,parg,cmd,larg,1L)) <= 0))
1.372 + return(ret);
1.373 +
1.374 + ret=b->method->ctrl(b,cmd,larg,parg);
1.375 +
1.376 + if (cb != NULL)
1.377 + ret=cb(b,BIO_CB_CTRL|BIO_CB_RETURN,parg,cmd,
1.378 + larg,ret);
1.379 + return(ret);
1.380 + }
1.381 +
1.382 +EXPORT_C long BIO_callback_ctrl(BIO *b, int cmd, void (*fp)(struct bio_st *, int, const char *, int, long, long))
1.383 + {
1.384 + long ret;
1.385 + long (*cb)(BIO *,int,const char *,int,long,long);
1.386 +
1.387 + if (b == NULL) return(0);
1.388 +
1.389 + if ((b->method == NULL) || (b->method->callback_ctrl == NULL))
1.390 + {
1.391 + BIOerr(BIO_F_BIO_CALLBACK_CTRL,BIO_R_UNSUPPORTED_METHOD);
1.392 + return(-2);
1.393 + }
1.394 +
1.395 + cb=b->callback;
1.396 +
1.397 + if ((cb != NULL) &&
1.398 + ((ret=cb(b,BIO_CB_CTRL,(void *)&fp,cmd,0,1L)) <= 0))
1.399 + return(ret);
1.400 +
1.401 + ret=b->method->callback_ctrl(b,cmd,fp);
1.402 +
1.403 + if (cb != NULL)
1.404 + ret=cb(b,BIO_CB_CTRL|BIO_CB_RETURN,(void *)&fp,cmd,
1.405 + 0,ret);
1.406 + return(ret);
1.407 + }
1.408 +
1.409 +/* It is unfortunate to duplicate in functions what the BIO_(w)pending macros
1.410 + * do; but those macros have inappropriate return type, and for interfacing
1.411 + * from other programming languages, C macros aren't much of a help anyway. */
1.412 +EXPORT_C size_t BIO_ctrl_pending(BIO *bio)
1.413 + {
1.414 + return BIO_ctrl(bio, BIO_CTRL_PENDING, 0, NULL);
1.415 + }
1.416 +
1.417 +EXPORT_C size_t BIO_ctrl_wpending(BIO *bio)
1.418 + {
1.419 + return BIO_ctrl(bio, BIO_CTRL_WPENDING, 0, NULL);
1.420 + }
1.421 +
1.422 +
1.423 +/* put the 'bio' on the end of b's list of operators */
1.424 +EXPORT_C BIO *BIO_push(BIO *b, BIO *bio)
1.425 + {
1.426 + BIO *lb;
1.427 +
1.428 + if (b == NULL) return(bio);
1.429 + lb=b;
1.430 + while (lb->next_bio != NULL)
1.431 + lb=lb->next_bio;
1.432 + lb->next_bio=bio;
1.433 + if (bio != NULL)
1.434 + bio->prev_bio=lb;
1.435 + /* called to do internal processing */
1.436 + BIO_ctrl(b,BIO_CTRL_PUSH,0,NULL);
1.437 + return(b);
1.438 + }
1.439 +
1.440 +/* Remove the first and return the rest */
1.441 +EXPORT_C BIO *BIO_pop(BIO *b)
1.442 + {
1.443 + BIO *ret;
1.444 +
1.445 + if (b == NULL) return(NULL);
1.446 + ret=b->next_bio;
1.447 +
1.448 + BIO_ctrl(b,BIO_CTRL_POP,0,NULL);
1.449 +
1.450 + if (b->prev_bio != NULL)
1.451 + b->prev_bio->next_bio=b->next_bio;
1.452 + if (b->next_bio != NULL)
1.453 + b->next_bio->prev_bio=b->prev_bio;
1.454 +
1.455 + b->next_bio=NULL;
1.456 + b->prev_bio=NULL;
1.457 + return(ret);
1.458 + }
1.459 +
1.460 +EXPORT_C BIO *BIO_get_retry_BIO(BIO *bio, int *reason)
1.461 + {
1.462 + BIO *b,*last;
1.463 +
1.464 + b=last=bio;
1.465 + for (;;)
1.466 + {
1.467 + if (!BIO_should_retry(b)) break;
1.468 + last=b;
1.469 + b=b->next_bio;
1.470 + if (b == NULL) break;
1.471 + }
1.472 + if (reason != NULL) *reason=last->retry_reason;
1.473 + return(last);
1.474 + }
1.475 +
1.476 +EXPORT_C int BIO_get_retry_reason(BIO *bio)
1.477 + {
1.478 + return(bio->retry_reason);
1.479 + }
1.480 +
1.481 +EXPORT_C BIO *BIO_find_type(BIO *bio, int type)
1.482 + {
1.483 + int mt,mask;
1.484 +
1.485 + if(!bio) return NULL;
1.486 + mask=type&0xff;
1.487 + do {
1.488 + if (bio->method != NULL)
1.489 + {
1.490 + mt=bio->method->type;
1.491 +
1.492 + if (!mask)
1.493 + {
1.494 + if (mt & type) return(bio);
1.495 + }
1.496 + else if (mt == type)
1.497 + return(bio);
1.498 + }
1.499 + bio=bio->next_bio;
1.500 + } while (bio != NULL);
1.501 + return(NULL);
1.502 + }
1.503 +
1.504 +EXPORT_C BIO *BIO_next(BIO *b)
1.505 + {
1.506 + if(!b) return NULL;
1.507 + return b->next_bio;
1.508 + }
1.509 +
1.510 +EXPORT_C void BIO_free_all(BIO *bio)
1.511 + {
1.512 + BIO *b;
1.513 + int ref;
1.514 +
1.515 + while (bio != NULL)
1.516 + {
1.517 + b=bio;
1.518 + ref=b->references;
1.519 + bio=bio->next_bio;
1.520 + BIO_free(b);
1.521 + /* Since ref count > 1, don't free anyone else. */
1.522 + if (ref > 1) break;
1.523 + }
1.524 + }
1.525 +
1.526 +EXPORT_C BIO *BIO_dup_chain(BIO *in)
1.527 + {
1.528 + BIO *ret=NULL,*eoc=NULL,*bio,*new;
1.529 +
1.530 + for (bio=in; bio != NULL; bio=bio->next_bio)
1.531 + {
1.532 + if ((new=BIO_new(bio->method)) == NULL) goto err;
1.533 + new->callback=bio->callback;
1.534 + new->cb_arg=bio->cb_arg;
1.535 + new->init=bio->init;
1.536 + new->shutdown=bio->shutdown;
1.537 + new->flags=bio->flags;
1.538 +
1.539 + /* This will let SSL_s_sock() work with stdin/stdout */
1.540 + new->num=bio->num;
1.541 +
1.542 + if (!BIO_dup_state(bio,(char *)new))
1.543 + {
1.544 + BIO_free(new);
1.545 + goto err;
1.546 + }
1.547 +
1.548 + /* copy app data */
1.549 + if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_BIO, &new->ex_data,
1.550 + &bio->ex_data))
1.551 + goto err;
1.552 +
1.553 + if (ret == NULL)
1.554 + {
1.555 + eoc=new;
1.556 + ret=eoc;
1.557 + }
1.558 + else
1.559 + {
1.560 + BIO_push(eoc,new);
1.561 + eoc=new;
1.562 + }
1.563 + }
1.564 + return(ret);
1.565 +err:
1.566 + if (ret != NULL)
1.567 + BIO_free(ret);
1.568 + return(NULL);
1.569 + }
1.570 +
1.571 +EXPORT_C void BIO_copy_next_retry(BIO *b)
1.572 + {
1.573 + BIO_set_flags(b,BIO_get_retry_flags(b->next_bio));
1.574 + b->retry_reason=b->next_bio->retry_reason;
1.575 + }
1.576 +
1.577 +EXPORT_C int BIO_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
1.578 + CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
1.579 + {
1.580 + return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_BIO, argl, argp,
1.581 + new_func, dup_func, free_func);
1.582 + }
1.583 +
1.584 +EXPORT_C int BIO_set_ex_data(BIO *bio, int idx, void *data)
1.585 + {
1.586 + return(CRYPTO_set_ex_data(&(bio->ex_data),idx,data));
1.587 + }
1.588 +
1.589 +EXPORT_C void *BIO_get_ex_data(BIO *bio, int idx)
1.590 + {
1.591 + return(CRYPTO_get_ex_data(&(bio->ex_data),idx));
1.592 + }
1.593 +
1.594 +EXPORT_C unsigned long BIO_number_read(BIO *bio)
1.595 +{
1.596 + if(bio) return bio->num_read;
1.597 + return 0;
1.598 +}
1.599 +
1.600 +EXPORT_C unsigned long BIO_number_written(BIO *bio)
1.601 +{
1.602 + if(bio) return bio->num_write;
1.603 + return 0;
1.604 +}
1.605 +
1.606 +IMPLEMENT_STACK_OF(BIO)