crypto/x509/x509_vfy.c

   1 /* crypto/x509/x509_vfy.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   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.
   8  *
   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).
  15  *
  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.
  22  *
  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 :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  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.
  52  *
  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 <time.h>
  61 #include <errno.h>
  62 #include <sys/types.h>
  63 #include <sys/stat.h>
  64
  65 #include "crypto.h"
  66 #include "cryptlib.h"
  67 #include "lhash.h"
  68 #include "buffer.h"
  69 #include "evp.h"
  70 #include "asn1.h"
  71 #include "x509.h"
  72 #include "objects.h"
  73
  74 #ifndef NOPROTO
  75 static int null_callback(int ok,X509_STORE_CTX *e);
  76 static int internal_verify(X509_STORE_CTX *ctx);
  77 #else
  78 static int null_callback();
  79 static int internal_verify();
  80 #endif
  81
  82 char *X509_version="X.509 part of OpenSSL 0.9.2 31-Dec-1998";
  83 static STACK *x509_store_ctx_method=NULL;
  84 static int x509_store_ctx_num=0;
  85 #if 0
  86 static int x509_store_num=1;
  87 static STACK *x509_store_method=NULL;
  88 #endif
  89
  90 static int null_callback(ok,e)
  91 int ok;
  92 X509_STORE_CTX *e;
  93         {
  94         return(ok);
  95         }
  96
  97 #if 0
  98 static int x509_subject_cmp(a,b)
  99 X509 **a,**b;
 100         {
 101         return(X509_subject_name_cmp(*a,*b));
 102         }
 103 #endif
 104
 105 int X509_verify_cert(ctx)
 106 X509_STORE_CTX *ctx;
 107         {
 108         X509 *x,*xtmp,*chain_ss=NULL;
 109         X509_NAME *xn;
 110         X509_OBJECT obj;
 111         int depth,i,ok=0;
 112         int num;
 113         int (*cb)();
 114         STACK *sktmp=NULL;
 115
 116         if (ctx->cert == NULL)
 117                 {
 118                 X509err(X509_F_X509_VERIFY_CERT,X509_R_NO_CERT_SET_FOR_US_TO_VERIFY);
 119                 return(-1);
 120                 }
 121
 122         cb=ctx->ctx->verify_cb;
 123         if (cb == NULL) cb=null_callback;
 124
 125         /* first we make sure the chain we are going to build is
 126          * present and that the first entry is in place */
 127         if (ctx->chain == NULL)
 128                 {
 129                 if (    ((ctx->chain=sk_new_null()) == NULL) ||
 130                         (!sk_push(ctx->chain,(char *)ctx->cert)))
 131                         {
 132                         X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
 133                         goto end;
 134                         }
 135                 CRYPTO_add(&ctx->cert->references,1,CRYPTO_LOCK_X509);
 136                 ctx->last_untrusted=1;
 137                 }
 138
 139         /* We use a temporary so we can chop and hack at it */
 140         if ((ctx->untrusted != NULL) && (sktmp=sk_dup(ctx->untrusted)) == NULL)
 141                 {
 142                 X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
 143                 goto end;
 144                 }
 145
 146         num=sk_num(ctx->chain);
 147         x=(X509 *)sk_value(ctx->chain,num-1);
 148         depth=ctx->depth;
 149
 150
 151         for (;;)
 152                 {
 153                 /* If we have enough, we break */
 154                 if (depth <= num) break;
 155
 156                 /* If we are self signed, we break */
 157                 xn=X509_get_issuer_name(x);
 158                 if (X509_NAME_cmp(X509_get_subject_name(x),xn) == 0)
 159                         break;
 160
 161                 /* If we were passed a cert chain, use it first */
 162                 if (ctx->untrusted != NULL)
 163                         {
 164                         xtmp=X509_find_by_subject(sktmp,xn);
 165                         if (xtmp != NULL)
 166                                 {
 167                                 if (!sk_push(ctx->chain,(char *)xtmp))
 168                                         {
 169                                         X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
 170                                         goto end;
 171                                         }
 172                                 CRYPTO_add(&xtmp->references,1,CRYPTO_LOCK_X509);
 173                                 sk_delete_ptr(sktmp,(char *)xtmp);
 174                                 ctx->last_untrusted++;
 175                                 x=xtmp;
 176                                 num++;
 177                                 /* reparse the full chain for
 178                                  * the next one */
 179                                 continue;
 180                                 }
 181                         }
 182                 break;
 183                 }
 184
 185         /* at this point, chain should contain a list of untrusted
 186          * certificates.  We now need to add at least one trusted one,
 187          * if possible, otherwise we complain. */
 188
 189         i=sk_num(ctx->chain);
 190         x=(X509 *)sk_value(ctx->chain,i-1);
 191         if (X509_NAME_cmp(X509_get_subject_name(x),X509_get_issuer_name(x))
 192                 == 0)
 193                 {
 194                 /* we have a self signed certificate */
 195                 if (sk_num(ctx->chain) == 1)
 196                         {
 197                         ctx->error=X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT;
 198                         ctx->current_cert=x;
 199                         ctx->error_depth=i-1;
 200                         ok=cb(0,ctx);
 201                         if (!ok) goto end;
 202                         }
 203                 else
 204                         {
 205                         /* worry more about this one elsewhere */
 206                         chain_ss=(X509 *)sk_pop(ctx->chain);
 207                         ctx->last_untrusted--;
 208                         num--;
 209                         x=(X509 *)sk_value(ctx->chain,num-1);
 210                         }
 211                 }
 212
 213         /* We now lookup certs from the certificate store */
 214         for (;;)
 215                 {
 216                 /* If we have enough, we break */
 217                 if (depth <= num) break;
 218
 219                 /* If we are self signed, we break */
 220                 xn=X509_get_issuer_name(x);
 221                 if (X509_NAME_cmp(X509_get_subject_name(x),xn) == 0)
 222                         break;
 223
 224                 ok=X509_STORE_get_by_subject(ctx,X509_LU_X509,xn,&obj);
 225                 if (ok != X509_LU_X509)
 226                         {
 227                         if (ok == X509_LU_RETRY)
 228                                 {
 229                                 X509_OBJECT_free_contents(&obj);
 230                                 X509err(X509_F_X509_VERIFY_CERT,X509_R_SHOULD_RETRY);
 231                                 return(ok);
 232                                 }
 233                         else if (ok != X509_LU_FAIL)
 234                                 {
 235                                 X509_OBJECT_free_contents(&obj);
 236                                 /* not good :-(, break anyway */
 237                                 return(ok);
 238                                 }
 239                         break;
 240                         }
 241                 x=obj.data.x509;
 242                 if (!sk_push(ctx->chain,(char *)obj.data.x509))
 243                         {
 244                         X509_OBJECT_free_contents(&obj);
 245                         X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
 246                         return(0);
 247                         }
 248                 num++;
 249                 }
 250
 251         /* we now have our chain, lets check it... */
 252         xn=X509_get_issuer_name(x);
 253         if (X509_NAME_cmp(X509_get_subject_name(x),xn) != 0)
 254                 {
 255                 if ((chain_ss == NULL) || (X509_NAME_cmp(X509_get_subject_name(chain_ss),xn) != 0))
 256                         {
 257                         if (ctx->last_untrusted >= num)
 258                                 ctx->error=X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY;
 259                         else
 260                                 ctx->error=X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT;
 261                         ctx->current_cert=x;
 262                         }
 263                 else
 264                         {
 265
 266                         sk_push(ctx->chain,(char *)chain_ss);
 267                         num++;
 268                         ctx->last_untrusted=num;
 269                         ctx->current_cert=chain_ss;
 270                         ctx->error=X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN;
 271                         chain_ss=NULL;
 272                         }
 273
 274                 ctx->error_depth=num-1;
 275                 ok=cb(0,ctx);
 276                 if (!ok) goto end;
 277                 }
 278
 279         /* We may as well copy down any DSA parameters that are required */
 280         X509_get_pubkey_parameters(NULL,ctx->chain);
 281
 282         /* At this point, we have a chain and just need to verify it */
 283         if (ctx->ctx->verify != NULL)
 284                 ok=ctx->ctx->verify(ctx);
 285         else
 286                 ok=internal_verify(ctx);
 287         if (0)
 288                 {
 289 end:
 290                 X509_get_pubkey_parameters(NULL,ctx->chain);
 291                 }
 292         if (sktmp != NULL) sk_free(sktmp);
 293         if (chain_ss != NULL) X509_free(chain_ss);
 294         return(ok);
 295         }
 296
 297 static int internal_verify(ctx)
 298 X509_STORE_CTX *ctx;
 299         {
 300         int i,ok=0,n;
 301         X509 *xs,*xi;
 302         EVP_PKEY *pkey=NULL;
 303         int (*cb)();
 304
 305         cb=ctx->ctx->verify_cb;
 306         if (cb == NULL) cb=null_callback;
 307
 308         n=sk_num(ctx->chain);
 309         ctx->error_depth=n-1;
 310         n--;
 311         xi=(X509 *)sk_value(ctx->chain,n);
 312         if (X509_NAME_cmp(X509_get_subject_name(xi),
 313                 X509_get_issuer_name(xi)) == 0)
 314                 xs=xi;
 315         else
 316                 {
 317                 if (n <= 0)
 318                         {
 319                         ctx->error=X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE;
 320                         ctx->current_cert=xi;
 321                         ok=cb(0,ctx);
 322                         goto end;
 323                         }
 324                 else
 325                         {
 326                         n--;
 327                         ctx->error_depth=n;
 328                         xs=(X509 *)sk_value(ctx->chain,n);
 329                         }
 330                 }
 331
 332 /*      ctx->error=0;  not needed */
 333         while (n >= 0)
 334                 {
 335                 ctx->error_depth=n;
 336                 if (!xs->valid)
 337                         {
 338                         if ((pkey=X509_get_pubkey(xi)) == NULL)
 339                                 {
 340                                 ctx->error=X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY;
 341                                 ctx->current_cert=xi;
 342                                 ok=(*cb)(0,ctx);
 343                                 if (!ok) goto end;
 344                                 }
 345                         if (X509_verify(xs,pkey) <= 0)
 346                                 {
 347                                 EVP_PKEY_free(pkey);
 348                                 ctx->error=X509_V_ERR_CERT_SIGNATURE_FAILURE;
 349                                 ctx->current_cert=xs;
 350                                 ok=(*cb)(0,ctx);
 351                                 if (!ok) goto end;
 352                                 }
 353                         EVP_PKEY_free(pkey);
 354                         pkey=NULL;
 355
 356                         i=X509_cmp_current_time(X509_get_notBefore(xs));
 357                         if (i == 0)
 358                                 {
 359                                 ctx->error=X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD;
 360                                 ctx->current_cert=xs;
 361                                 ok=(*cb)(0,ctx);
 362                                 if (!ok) goto end;
 363                                 }
 364                         if (i > 0)
 365                                 {
 366                                 ctx->error=X509_V_ERR_CERT_NOT_YET_VALID;
 367                                 ctx->current_cert=xs;
 368                                 ok=(*cb)(0,ctx);
 369                                 if (!ok) goto end;
 370                                 }
 371                         xs->valid=1;
 372                         }
 373
 374                 i=X509_cmp_current_time(X509_get_notAfter(xs));
 375                 if (i == 0)
 376                         {
 377                         ctx->error=X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD;
 378                         ctx->current_cert=xs;
 379                         ok=(*cb)(0,ctx);
 380                         if (!ok) goto end;
 381                         }
 382
 383                 if (i < 0)
 384                         {
 385                         ctx->error=X509_V_ERR_CERT_HAS_EXPIRED;
 386                         ctx->current_cert=xs;
 387                         ok=(*cb)(0,ctx);
 388                         if (!ok) goto end;
 389                         }
 390
 391                 /* CRL CHECK */
 392
 393                 /* The last error (if any) is still in the error value */
 394                 ctx->current_cert=xs;
 395                 ok=(*cb)(1,ctx);
 396                 if (!ok) goto end;
 397
 398                 n--;
 399                 if (n >= 0)
 400                         {
 401                         xi=xs;
 402                         xs=(X509 *)sk_value(ctx->chain,n);
 403                         }
 404                 }
 405         ok=1;
 406 end:
 407         return(ok);
 408         }
 409
 410 int X509_cmp_current_time(ctm)
 411 ASN1_UTCTIME *ctm;
 412         {
 413         char *str;
 414         ASN1_UTCTIME atm;
 415         time_t offset;
 416         char buff1[24],buff2[24],*p;
 417         int i,j;
 418
 419         p=buff1;
 420         i=ctm->length;
 421         str=(char *)ctm->data;
 422         if ((i < 11) || (i > 17)) return(0);
 423         memcpy(p,str,10);
 424         p+=10;
 425         str+=10;
 426
 427         if ((*str == 'Z') || (*str == '-') || (*str == '+'))
 428                 { *(p++)='0'; *(p++)='0'; }
 429         else    { *(p++)= *(str++); *(p++)= *(str++); }
 430         *(p++)='Z';
 431         *(p++)='\0';
 432
 433         if (*str == 'Z')
 434                 offset=0;
 435         else
 436                 {
 437                 if ((*str != '+') && (str[5] != '-'))
 438                         return(0);
 439                 offset=((str[1]-'0')*10+(str[2]-'0'))*60;
 440                 offset+=(str[3]-'0')*10+(str[4]-'0');
 441                 if (*str == '-')
 442                         offset= -offset;
 443                 }
 444         atm.type=V_ASN1_UTCTIME;
 445         atm.length=sizeof(buff2);
 446         atm.data=(unsigned char *)buff2;
 447
 448         X509_gmtime_adj(&atm,-offset);
 449
 450         i=(buff1[0]-'0')*10+(buff1[1]-'0');
 451         if (i < 70) i+=100;
 452         j=(buff2[0]-'0')*10+(buff2[1]-'0');
 453         if (j < 70) j+=100;
 454
 455         if (i < j) return (-1);
 456         if (i > j) return (1);
 457         i=strcmp(buff1,buff2);
 458         if (i == 0) /* wait a second then return younger :-) */
 459                 return(-1);
 460         else
 461                 return(i);
 462         }
 463
 464 ASN1_UTCTIME *X509_gmtime_adj(s, adj)
 465 ASN1_UTCTIME *s;
 466 long adj;
 467         {
 468         time_t t;
 469
 470         time(&t);
 471         t+=adj;
 472         return(ASN1_UTCTIME_set(s,t));
 473         }
 474
 475 int X509_get_pubkey_parameters(pkey,chain)
 476 EVP_PKEY *pkey;
 477 STACK *chain;
 478         {
 479         EVP_PKEY *ktmp=NULL,*ktmp2;
 480         int i,j;
 481
 482         if ((pkey != NULL) && !EVP_PKEY_missing_parameters(pkey)) return(1);
 483
 484         for (i=0; i<sk_num(chain); i++)
 485                 {
 486                 ktmp=X509_get_pubkey((X509 *)sk_value(chain,i));
 487                 if (ktmp == NULL)
 488                         {
 489                         X509err(X509_F_X509_GET_PUBKEY_PARAMETERS,X509_R_UNABLE_TO_GET_CERTS_PUBLIC_KEY);
 490                         return(0);
 491                         }
 492                 if (!EVP_PKEY_missing_parameters(ktmp))
 493                         break;
 494                 else
 495                         {
 496                         EVP_PKEY_free(ktmp);
 497                         ktmp=NULL;
 498                         }
 499                 }
 500         if (ktmp == NULL)
 501                 {
 502                 X509err(X509_F_X509_GET_PUBKEY_PARAMETERS,X509_R_UNABLE_TO_FIND_PARAMETERS_IN_CHAIN);
 503                 return(0);
 504                 }
 505
 506         /* first, populate the other certs */
 507         for (j=i-1; j >= 0; j--)
 508                 {
 509                 ktmp2=X509_get_pubkey((X509 *)sk_value(chain,j));
 510                 EVP_PKEY_copy_parameters(ktmp2,ktmp);
 511                 EVP_PKEY_free(ktmp2);
 512                 }
 513
 514         if (pkey != NULL) EVP_PKEY_copy_parameters(pkey,ktmp);
 515         EVP_PKEY_free(ktmp);
 516         return(1);
 517         }
 518
 519 int X509_STORE_add_cert(ctx,x)
 520 X509_STORE *ctx;
 521 X509 *x;
 522         {
 523         X509_OBJECT *obj,*r;
 524         int ret=1;
 525
 526         if (x == NULL) return(0);
 527         obj=(X509_OBJECT *)Malloc(sizeof(X509_OBJECT));
 528         if (obj == NULL)
 529                 {
 530                 X509err(X509_F_X509_STORE_ADD_CERT,ERR_R_MALLOC_FAILURE);
 531                 return(0);
 532                 }
 533         obj->type=X509_LU_X509;
 534         obj->data.x509=x;
 535
 536         CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
 537
 538         X509_OBJECT_up_ref_count(obj);
 539
 540         r=(X509_OBJECT *)lh_insert(ctx->certs,(char *)obj);
 541         if (r != NULL)
 542                 { /* oops, put it back */
 543                 lh_delete(ctx->certs,(char *)obj);
 544                 X509_OBJECT_free_contents(obj);
 545                 Free(obj);
 546                 lh_insert(ctx->certs,(char *)r);
 547                 X509err(X509_F_X509_STORE_ADD_CERT,X509_R_CERT_ALREADY_IN_HASH_TABLE);
 548                 ret=0;
 549                 }
 550
 551         CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
 552
 553         return(ret);
 554         }
 555
 556 int X509_STORE_add_crl(ctx,x)
 557 X509_STORE *ctx;
 558 X509_CRL *x;
 559         {
 560         X509_OBJECT *obj,*r;
 561         int ret=1;
 562
 563         if (x == NULL) return(0);
 564         obj=(X509_OBJECT *)Malloc(sizeof(X509_OBJECT));
 565         if (obj == NULL)
 566                 {
 567                 X509err(X509_F_X509_STORE_ADD_CRL,ERR_R_MALLOC_FAILURE);
 568                 return(0);
 569                 }
 570         obj->type=X509_LU_CRL;
 571         obj->data.crl=x;
 572
 573         CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
 574
 575         X509_OBJECT_up_ref_count(obj);
 576
 577         r=(X509_OBJECT *)lh_insert(ctx->certs,(char *)obj);
 578         if (r != NULL)
 579                 { /* oops, put it back */
 580                 lh_delete(ctx->certs,(char *)obj);
 581                 X509_OBJECT_free_contents(obj);
 582                 Free(obj);
 583                 lh_insert(ctx->certs,(char *)r);
 584                 X509err(X509_F_X509_STORE_ADD_CRL,X509_R_CERT_ALREADY_IN_HASH_TABLE);
 585                 ret=0;
 586                 }
 587
 588         CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
 589
 590         return(ret);
 591         }
 592
 593 int X509_STORE_CTX_get_ex_new_index(argl,argp,new_func,dup_func,free_func)
 594 long argl;
 595 char *argp;
 596 int (*new_func)();
 597 int (*dup_func)();
 598 void (*free_func)();
 599         {
 600         x509_store_ctx_num++;
 601         return(CRYPTO_get_ex_new_index(x509_store_ctx_num-1,
 602                 &x509_store_ctx_method,
 603                 argl,argp,new_func,dup_func,free_func));
 604         }
 605
 606 int X509_STORE_CTX_set_ex_data(ctx,idx,data)
 607 X509_STORE_CTX *ctx;
 608 int idx;
 609 char *data;
 610         {
 611         return(CRYPTO_set_ex_data(&ctx->ex_data,idx,data));
 612         }
 613
 614 char *X509_STORE_CTX_get_ex_data(ctx,idx)
 615 X509_STORE_CTX *ctx;
 616 int idx;
 617         {
 618         return(CRYPTO_get_ex_data(&ctx->ex_data,idx));
 619         }
 620
 621 int X509_STORE_CTX_get_error(ctx)
 622 X509_STORE_CTX *ctx;
 623         {
 624         return(ctx->error);
 625         }
 626
 627 void X509_STORE_CTX_set_error(ctx,err)
 628 X509_STORE_CTX *ctx;
 629 int err;
 630         {
 631         ctx->error=err;
 632         }
 633
 634 int X509_STORE_CTX_get_error_depth(ctx)
 635 X509_STORE_CTX *ctx;
 636         {
 637         return(ctx->error_depth);
 638         }
 639
 640 X509 *X509_STORE_CTX_get_current_cert(ctx)
 641 X509_STORE_CTX *ctx;
 642         {
 643         return(ctx->current_cert);
 644         }
 645
 646 STACK *X509_STORE_CTX_get_chain(ctx)
 647 X509_STORE_CTX *ctx;
 648         {
 649         return(ctx->chain);
 650         }
 651
 652 void X509_STORE_CTX_set_cert(ctx,x)
 653 X509_STORE_CTX *ctx;
 654 X509 *x;
 655         {
 656         ctx->cert=x;
 657         }
 658
 659 void X509_STORE_CTX_set_chain(ctx,sk)
 660 X509_STORE_CTX *ctx;
 661 STACK *sk;
 662         {
 663         ctx->untrusted=sk;
 664         }
 665
 666