apps/ocsp.c

   1 /* ocsp.c */
   2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
   3  * project 2000.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58 #ifndef OPENSSL_NO_OCSP
  59 #define USE_SOCKETS
  60 #include <stdio.h>
  61 #include <stdlib.h>
  62 #include <string.h>
  63 #include "apps.h" /* needs to be included before the openssl headers! */
  64 #include <openssl/e_os2.h>
  65 #include <openssl/ssl.h>
  66
  67 /* Maximum leeway in validity period: default 5 minutes */
  68 #define MAX_VALIDITY_PERIOD     (5 * 60)
  69
  70 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, X509 *issuer,
  71                                 STACK_OF(OCSP_CERTID) *ids);
  72 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer,
  73                                 STACK_OF(OCSP_CERTID) *ids);
  74 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
  75                                 STACK *names, STACK_OF(OCSP_CERTID) *ids,
  76                                 long nsec, long maxage);
  77
  78 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
  79                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
  80                         STACK_OF(X509) *rother, unsigned long flags,
  81                         int nmin, int ndays);
  82
  83 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser);
  84 static BIO *init_responder(char *port);
  85 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port);
  86 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp);
  87 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
  88                                 OCSP_REQUEST *req, int req_timeout);
  89
  90 #undef PROG
  91 #define PROG ocsp_main
  92
  93 int MAIN(int, char **);
  94
  95 int MAIN(int argc, char **argv)
  96         {
  97         ENGINE *e = NULL;
  98         char **args;
  99         char *host = NULL, *port = NULL, *path = "/";
 100         char *reqin = NULL, *respin = NULL;
 101         char *reqout = NULL, *respout = NULL;
 102         char *signfile = NULL, *keyfile = NULL;
 103         char *rsignfile = NULL, *rkeyfile = NULL;
 104         char *outfile = NULL;
 105         int add_nonce = 1, noverify = 0, use_ssl = -1;
 106         OCSP_REQUEST *req = NULL;
 107         OCSP_RESPONSE *resp = NULL;
 108         OCSP_BASICRESP *bs = NULL;
 109         X509 *issuer = NULL, *cert = NULL;
 110         X509 *signer = NULL, *rsigner = NULL;
 111         EVP_PKEY *key = NULL, *rkey = NULL;
 112         BIO *acbio = NULL, *cbio = NULL;
 113         BIO *derbio = NULL;
 114         BIO *out = NULL;
 115         int req_timeout = -1;
 116         int req_text = 0, resp_text = 0;
 117         long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
 118         char *CAfile = NULL, *CApath = NULL;
 119         X509_STORE *store = NULL;
 120         STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL;
 121         char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL;
 122         unsigned long sign_flags = 0, verify_flags = 0, rflags = 0;
 123         int ret = 1;
 124         int accept_count = -1;
 125         int badarg = 0;
 126         int i;
 127         int ignore_err = 0;
 128         STACK *reqnames = NULL;
 129         STACK_OF(OCSP_CERTID) *ids = NULL;
 130
 131         X509 *rca_cert = NULL;
 132         char *ridx_filename = NULL;
 133         char *rca_filename = NULL;
 134         CA_DB *rdb = NULL;
 135         int nmin = 0, ndays = -1;
 136
 137         if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 138
 139         if (!load_config(bio_err, NULL))
 140                 goto end;
 141         SSL_load_error_strings();
 142         OpenSSL_add_ssl_algorithms();
 143         args = argv + 1;
 144         reqnames = sk_new_null();
 145         ids = sk_OCSP_CERTID_new_null();
 146         while (!badarg && *args && *args[0] == '-')
 147                 {
 148                 if (!strcmp(*args, "-out"))
 149                         {
 150                         if (args[1])
 151                                 {
 152                                 args++;
 153                                 outfile = *args;
 154                                 }
 155                         else badarg = 1;
 156                         }
 157                 else if (!strcmp(*args, "-timeout"))
 158                         {
 159                         if (args[1])
 160                                 {
 161                                 args++;
 162                                 req_timeout = atol(*args);
 163                                 if (req_timeout < 0)
 164                                         {
 165                                         BIO_printf(bio_err,
 166                                                 "Illegal timeout value %s\n",
 167                                                 *args);
 168                                         badarg = 1;
 169                                         }
 170                                 }
 171                         else badarg = 1;
 172                         }
 173                 else if (!strcmp(*args, "-url"))
 174                         {
 175                         if (args[1])
 176                                 {
 177                                 args++;
 178                                 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl))
 179                                         {
 180                                         BIO_printf(bio_err, "Error parsing URL\n");
 181                                         badarg = 1;
 182                                         }
 183                                 }
 184                         else badarg = 1;
 185                         }
 186                 else if (!strcmp(*args, "-host"))
 187                         {
 188                         if (args[1])
 189                                 {
 190                                 args++;
 191                                 host = *args;
 192                                 }
 193                         else badarg = 1;
 194                         }
 195                 else if (!strcmp(*args, "-port"))
 196                         {
 197                         if (args[1])
 198                                 {
 199                                 args++;
 200                                 port = *args;
 201                                 }
 202                         else badarg = 1;
 203                         }
 204                 else if (!strcmp(*args, "-ignore_err"))
 205                         ignore_err = 1;
 206                 else if (!strcmp(*args, "-noverify"))
 207                         noverify = 1;
 208                 else if (!strcmp(*args, "-nonce"))
 209                         add_nonce = 2;
 210                 else if (!strcmp(*args, "-no_nonce"))
 211                         add_nonce = 0;
 212                 else if (!strcmp(*args, "-resp_no_certs"))
 213                         rflags |= OCSP_NOCERTS;
 214                 else if (!strcmp(*args, "-resp_key_id"))
 215                         rflags |= OCSP_RESPID_KEY;
 216                 else if (!strcmp(*args, "-no_certs"))
 217                         sign_flags |= OCSP_NOCERTS;
 218                 else if (!strcmp(*args, "-no_signature_verify"))
 219                         verify_flags |= OCSP_NOSIGS;
 220                 else if (!strcmp(*args, "-no_cert_verify"))
 221                         verify_flags |= OCSP_NOVERIFY;
 222                 else if (!strcmp(*args, "-no_chain"))
 223                         verify_flags |= OCSP_NOCHAIN;
 224                 else if (!strcmp(*args, "-no_cert_checks"))
 225                         verify_flags |= OCSP_NOCHECKS;
 226                 else if (!strcmp(*args, "-no_explicit"))
 227                         verify_flags |= OCSP_NOEXPLICIT;
 228                 else if (!strcmp(*args, "-trust_other"))
 229                         verify_flags |= OCSP_TRUSTOTHER;
 230                 else if (!strcmp(*args, "-no_intern"))
 231                         verify_flags |= OCSP_NOINTERN;
 232                 else if (!strcmp(*args, "-text"))
 233                         {
 234                         req_text = 1;
 235                         resp_text = 1;
 236                         }
 237                 else if (!strcmp(*args, "-req_text"))
 238                         req_text = 1;
 239                 else if (!strcmp(*args, "-resp_text"))
 240                         resp_text = 1;
 241                 else if (!strcmp(*args, "-reqin"))
 242                         {
 243                         if (args[1])
 244                                 {
 245                                 args++;
 246                                 reqin = *args;
 247                                 }
 248                         else badarg = 1;
 249                         }
 250                 else if (!strcmp(*args, "-respin"))
 251                         {
 252                         if (args[1])
 253                                 {
 254                                 args++;
 255                                 respin = *args;
 256                                 }
 257                         else badarg = 1;
 258                         }
 259                 else if (!strcmp(*args, "-signer"))
 260                         {
 261                         if (args[1])
 262                                 {
 263                                 args++;
 264                                 signfile = *args;
 265                                 }
 266                         else badarg = 1;
 267                         }
 268                 else if (!strcmp (*args, "-VAfile"))
 269                         {
 270                         if (args[1])
 271                                 {
 272                                 args++;
 273                                 verify_certfile = *args;
 274                                 verify_flags |= OCSP_TRUSTOTHER;
 275                                 }
 276                         else badarg = 1;
 277                         }
 278                 else if (!strcmp(*args, "-sign_other"))
 279                         {
 280                         if (args[1])
 281                                 {
 282                                 args++;
 283                                 sign_certfile = *args;
 284                                 }
 285                         else badarg = 1;
 286                         }
 287                 else if (!strcmp(*args, "-verify_other"))
 288                         {
 289                         if (args[1])
 290                                 {
 291                                 args++;
 292                                 verify_certfile = *args;
 293                                 }
 294                         else badarg = 1;
 295                         }
 296                 else if (!strcmp (*args, "-CAfile"))
 297                         {
 298                         if (args[1])
 299                                 {
 300                                 args++;
 301                                 CAfile = *args;
 302                                 }
 303                         else badarg = 1;
 304                         }
 305                 else if (!strcmp (*args, "-CApath"))
 306                         {
 307                         if (args[1])
 308                                 {
 309                                 args++;
 310                                 CApath = *args;
 311                                 }
 312                         else badarg = 1;
 313                         }
 314                 else if (!strcmp (*args, "-validity_period"))
 315                         {
 316                         if (args[1])
 317                                 {
 318                                 args++;
 319                                 nsec = atol(*args);
 320                                 if (nsec < 0)
 321                                         {
 322                                         BIO_printf(bio_err,
 323                                                 "Illegal validity period %s\n",
 324                                                 *args);
 325                                         badarg = 1;
 326                                         }
 327                                 }
 328                         else badarg = 1;
 329                         }
 330                 else if (!strcmp (*args, "-status_age"))
 331                         {
 332                         if (args[1])
 333                                 {
 334                                 args++;
 335                                 maxage = atol(*args);
 336                                 if (maxage < 0)
 337                                         {
 338                                         BIO_printf(bio_err,
 339                                                 "Illegal validity age %s\n",
 340                                                 *args);
 341                                         badarg = 1;
 342                                         }
 343                                 }
 344                         else badarg = 1;
 345                         }
 346                  else if (!strcmp(*args, "-signkey"))
 347                         {
 348                         if (args[1])
 349                                 {
 350                                 args++;
 351                                 keyfile = *args;
 352                                 }
 353                         else badarg = 1;
 354                         }
 355                 else if (!strcmp(*args, "-reqout"))
 356                         {
 357                         if (args[1])
 358                                 {
 359                                 args++;
 360                                 reqout = *args;
 361                                 }
 362                         else badarg = 1;
 363                         }
 364                 else if (!strcmp(*args, "-respout"))
 365                         {
 366                         if (args[1])
 367                                 {
 368                                 args++;
 369                                 respout = *args;
 370                                 }
 371                         else badarg = 1;
 372                         }
 373                  else if (!strcmp(*args, "-path"))
 374                         {
 375                         if (args[1])
 376                                 {
 377                                 args++;
 378                                 path = *args;
 379                                 }
 380                         else badarg = 1;
 381                         }
 382                 else if (!strcmp(*args, "-issuer"))
 383                         {
 384                         if (args[1])
 385                                 {
 386                                 args++;
 387                                 X509_free(issuer);
 388                                 issuer = load_cert(bio_err, *args, FORMAT_PEM,
 389                                         NULL, e, "issuer certificate");
 390                                 if(!issuer) goto end;
 391                                 }
 392                         else badarg = 1;
 393                         }
 394                 else if (!strcmp (*args, "-cert"))
 395                         {
 396                         if (args[1])
 397                                 {
 398                                 args++;
 399                                 X509_free(cert);
 400                                 cert = load_cert(bio_err, *args, FORMAT_PEM,
 401                                         NULL, e, "certificate");
 402                                 if(!cert) goto end;
 403                                 if(!add_ocsp_cert(&req, cert, issuer, ids))
 404                                         goto end;
 405                                 if(!sk_push(reqnames, *args))
 406                                         goto end;
 407                                 }
 408                         else badarg = 1;
 409                         }
 410                 else if (!strcmp(*args, "-serial"))
 411                         {
 412                         if (args[1])
 413                                 {
 414                                 args++;
 415                                 if(!add_ocsp_serial(&req, *args, issuer, ids))
 416                                         goto end;
 417                                 if(!sk_push(reqnames, *args))
 418                                         goto end;
 419                                 }
 420                         else badarg = 1;
 421                         }
 422                 else if (!strcmp(*args, "-index"))
 423                         {
 424                         if (args[1])
 425                                 {
 426                                 args++;
 427                                 ridx_filename = *args;
 428                                 }
 429                         else badarg = 1;
 430                         }
 431                 else if (!strcmp(*args, "-CA"))
 432                         {
 433                         if (args[1])
 434                                 {
 435                                 args++;
 436                                 rca_filename = *args;
 437                                 }
 438                         else badarg = 1;
 439                         }
 440                 else if (!strcmp (*args, "-nmin"))
 441                         {
 442                         if (args[1])
 443                                 {
 444                                 args++;
 445                                 nmin = atol(*args);
 446                                 if (nmin < 0)
 447                                         {
 448                                         BIO_printf(bio_err,
 449                                                 "Illegal update period %s\n",
 450                                                 *args);
 451                                         badarg = 1;
 452                                         }
 453                                 }
 454                                 if (ndays == -1)
 455                                         ndays = 0;
 456                         else badarg = 1;
 457                         }
 458                 else if (!strcmp (*args, "-nrequest"))
 459                         {
 460                         if (args[1])
 461                                 {
 462                                 args++;
 463                                 accept_count = atol(*args);
 464                                 if (accept_count < 0)
 465                                         {
 466                                         BIO_printf(bio_err,
 467                                                 "Illegal accept count %s\n",
 468                                                 *args);
 469                                         badarg = 1;
 470                                         }
 471                                 }
 472                         else badarg = 1;
 473                         }
 474                 else if (!strcmp (*args, "-ndays"))
 475                         {
 476                         if (args[1])
 477                                 {
 478                                 args++;
 479                                 ndays = atol(*args);
 480                                 if (ndays < 0)
 481                                         {
 482                                         BIO_printf(bio_err,
 483                                                 "Illegal update period %s\n",
 484                                                 *args);
 485                                         badarg = 1;
 486                                         }
 487                                 }
 488                         else badarg = 1;
 489                         }
 490                 else if (!strcmp(*args, "-rsigner"))
 491                         {
 492                         if (args[1])
 493                                 {
 494                                 args++;
 495                                 rsignfile = *args;
 496                                 }
 497                         else badarg = 1;
 498                         }
 499                 else if (!strcmp(*args, "-rkey"))
 500                         {
 501                         if (args[1])
 502                                 {
 503                                 args++;
 504                                 rkeyfile = *args;
 505                                 }
 506                         else badarg = 1;
 507                         }
 508                 else if (!strcmp(*args, "-rother"))
 509                         {
 510                         if (args[1])
 511                                 {
 512                                 args++;
 513                                 rcertfile = *args;
 514                                 }
 515                         else badarg = 1;
 516                         }
 517                 else badarg = 1;
 518                 args++;
 519                 }
 520
 521         /* Have we anything to do? */
 522         if (!req && !reqin && !respin && !(port && ridx_filename)) badarg = 1;
 523
 524         if (badarg)
 525                 {
 526                 BIO_printf (bio_err, "OCSP utility\n");
 527                 BIO_printf (bio_err, "Usage ocsp [options]\n");
 528                 BIO_printf (bio_err, "where options are\n");
 529                 BIO_printf (bio_err, "-out file          output filename\n");
 530                 BIO_printf (bio_err, "-issuer file       issuer certificate\n");
 531                 BIO_printf (bio_err, "-cert file         certificate to check\n");
 532                 BIO_printf (bio_err, "-serial n          serial number to check\n");
 533                 BIO_printf (bio_err, "-signer file       certificate to sign OCSP request with\n");
 534                 BIO_printf (bio_err, "-signkey file      private key to sign OCSP request with\n");
 535                 BIO_printf (bio_err, "-sign_other file   additional certificates to include in signed request\n");
 536                 BIO_printf (bio_err, "-no_certs          don't include any certificates in signed request\n");
 537                 BIO_printf (bio_err, "-req_text          print text form of request\n");
 538                 BIO_printf (bio_err, "-resp_text         print text form of response\n");
 539                 BIO_printf (bio_err, "-text              print text form of request and response\n");
 540                 BIO_printf (bio_err, "-reqout file       write DER encoded OCSP request to \"file\"\n");
 541                 BIO_printf (bio_err, "-respout file      write DER encoded OCSP reponse to \"file\"\n");
 542                 BIO_printf (bio_err, "-reqin file        read DER encoded OCSP request from \"file\"\n");
 543                 BIO_printf (bio_err, "-respin file       read DER encoded OCSP reponse from \"file\"\n");
 544                 BIO_printf (bio_err, "-nonce             add OCSP nonce to request\n");
 545                 BIO_printf (bio_err, "-no_nonce          don't add OCSP nonce to request\n");
 546                 BIO_printf (bio_err, "-url URL           OCSP responder URL\n");
 547                 BIO_printf (bio_err, "-host host:n       send OCSP request to host on port n\n");
 548                 BIO_printf (bio_err, "-path              path to use in OCSP request\n");
 549                 BIO_printf (bio_err, "-CApath dir        trusted certificates directory\n");
 550                 BIO_printf (bio_err, "-CAfile file       trusted certificates file\n");
 551                 BIO_printf (bio_err, "-VAfile file       validator certificates file\n");
 552                 BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n");
 553                 BIO_printf (bio_err, "-status_age n      maximum status age in seconds\n");
 554                 BIO_printf (bio_err, "-noverify          don't verify response at all\n");
 555                 BIO_printf (bio_err, "-verify_other file additional certificates to search for signer\n");
 556                 BIO_printf (bio_err, "-trust_other       don't verify additional certificates\n");
 557                 BIO_printf (bio_err, "-no_intern         don't search certificates contained in response for signer\n");
 558                 BIO_printf (bio_err, "-no_signature_verify don't check signature on response\n");
 559                 BIO_printf (bio_err, "-no_cert_verify    don't check signing certificate\n");
 560                 BIO_printf (bio_err, "-no_chain          don't chain verify response\n");
 561                 BIO_printf (bio_err, "-no_cert_checks    don't do additional checks on signing certificate\n");
 562                 BIO_printf (bio_err, "-port num          port to run responder on\n");
 563                 BIO_printf (bio_err, "-index file        certificate status index file\n");
 564                 BIO_printf (bio_err, "-CA file           CA certificate\n");
 565                 BIO_printf (bio_err, "-rsigner file      responder certificate to sign responses with\n");
 566                 BIO_printf (bio_err, "-rkey file         responder key to sign responses with\n");
 567                 BIO_printf (bio_err, "-rother file       other certificates to include in response\n");
 568                 BIO_printf (bio_err, "-resp_no_certs     don't include any certificates in response\n");
 569                 BIO_printf (bio_err, "-nmin n            number of minutes before next update\n");
 570                 BIO_printf (bio_err, "-ndays n           number of days before next update\n");
 571                 BIO_printf (bio_err, "-resp_key_id       identify reponse by signing certificate key ID\n");
 572                 BIO_printf (bio_err, "-nrequest n        number of requests to accept (default unlimited)\n");
 573                 goto end;
 574                 }
 575
 576         if(outfile) out = BIO_new_file(outfile, "w");
 577         else out = BIO_new_fp(stdout, BIO_NOCLOSE);
 578
 579         if(!out)
 580                 {
 581                 BIO_printf(bio_err, "Error opening output file\n");
 582                 goto end;
 583                 }
 584
 585         if (!req && (add_nonce != 2)) add_nonce = 0;
 586
 587         if (!req && reqin)
 588                 {
 589                 derbio = BIO_new_file(reqin, "rb");
 590                 if (!derbio)
 591                         {
 592                         BIO_printf(bio_err, "Error Opening OCSP request file\n");
 593                         goto end;
 594                         }
 595                 req = d2i_OCSP_REQUEST_bio(derbio, NULL);
 596                 BIO_free(derbio);
 597                 if(!req)
 598                         {
 599                         BIO_printf(bio_err, "Error reading OCSP request\n");
 600                         goto end;
 601                         }
 602                 }
 603
 604         if (!req && port)
 605                 {
 606                 acbio = init_responder(port);
 607                 if (!acbio)
 608                         goto end;
 609                 }
 610
 611         if (rsignfile && !rdb)
 612                 {
 613                 if (!rkeyfile) rkeyfile = rsignfile;
 614                 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM,
 615                         NULL, e, "responder certificate");
 616                 if (!rsigner)
 617                         {
 618                         BIO_printf(bio_err, "Error loading responder certificate\n");
 619                         goto end;
 620                         }
 621                 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM,
 622                         NULL, e, "CA certificate");
 623                 if (rcertfile)
 624                         {
 625                         rother = load_certs(bio_err, rcertfile, FORMAT_PEM,
 626                                 NULL, e, "responder other certificates");
 627                         if (!rother) goto end;
 628                         }
 629                 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL,
 630                         "responder private key");
 631                 if (!rkey)
 632                         goto end;
 633                 }
 634         if(acbio)
 635                 BIO_printf(bio_err, "Waiting for OCSP client connections...\n");
 636
 637         redo_accept:
 638
 639         if (acbio)
 640                 {
 641                 if (!do_responder(&req, &cbio, acbio, port))
 642                         goto end;
 643                 if (!req)
 644                         {
 645                         resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
 646                         send_ocsp_response(cbio, resp);
 647                         goto done_resp;
 648                         }
 649                 }
 650
 651         if (!req && (signfile || reqout || host || add_nonce || ridx_filename))
 652                 {
 653                 BIO_printf(bio_err, "Need an OCSP request for this operation!\n");
 654                 goto end;
 655                 }
 656
 657         if (req && add_nonce) OCSP_request_add1_nonce(req, NULL, -1);
 658
 659         if (signfile)
 660                 {
 661                 if (!keyfile) keyfile = signfile;
 662                 signer = load_cert(bio_err, signfile, FORMAT_PEM,
 663                         NULL, e, "signer certificate");
 664                 if (!signer)
 665                         {
 666                         BIO_printf(bio_err, "Error loading signer certificate\n");
 667                         goto end;
 668                         }
 669                 if (sign_certfile)
 670                         {
 671                         sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM,
 672                                 NULL, e, "signer certificates");
 673                         if (!sign_other) goto end;
 674                         }
 675                 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL,
 676                         "signer private key");
 677                 if (!key)
 678                         goto end;
 679                 if (!OCSP_request_sign(req, signer, key, EVP_sha1(), sign_other, sign_flags))
 680                         {
 681                         BIO_printf(bio_err, "Error signing OCSP request\n");
 682                         goto end;
 683                         }
 684                 }
 685
 686         if (req_text && req) OCSP_REQUEST_print(out, req, 0);
 687
 688         if (reqout)
 689                 {
 690                 derbio = BIO_new_file(reqout, "wb");
 691                 if(!derbio)
 692                         {
 693                         BIO_printf(bio_err, "Error opening file %s\n", reqout);
 694                         goto end;
 695                         }
 696                 i2d_OCSP_REQUEST_bio(derbio, req);
 697                 BIO_free(derbio);
 698                 }
 699
 700         if (ridx_filename && (!rkey || !rsigner || !rca_cert))
 701                 {
 702                 BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n");
 703                 goto end;
 704                 }
 705
 706         if (ridx_filename && !rdb)
 707                 {
 708                 rdb = load_index(ridx_filename, NULL);
 709                 if (!rdb) goto end;
 710                 if (!index_index(rdb)) goto end;
 711                 }
 712
 713         if (rdb)
 714                 {
 715                 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, rother, rflags, nmin, ndays);
 716                 if (cbio)
 717                         send_ocsp_response(cbio, resp);
 718                 }
 719         else if (host)
 720                 {
 721 #ifndef OPENSSL_NO_SOCK
 722                 resp = process_responder(bio_err, req, host, path,
 723                                                 port, use_ssl, req_timeout);
 724                 if (!resp)
 725                         goto end;
 726 #else
 727                 BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n");
 728                 goto end;
 729 #endif
 730                 }
 731         else if (respin)
 732                 {
 733                 derbio = BIO_new_file(respin, "rb");
 734                 if (!derbio)
 735                         {
 736                         BIO_printf(bio_err, "Error Opening OCSP response file\n");
 737                         goto end;
 738                         }
 739                 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
 740                 BIO_free(derbio);
 741                 if(!resp)
 742                         {
 743                         BIO_printf(bio_err, "Error reading OCSP response\n");
 744                         goto end;
 745                         }
 746
 747                 }
 748         else
 749                 {
 750                 ret = 0;
 751                 goto end;
 752                 }
 753
 754         done_resp:
 755
 756         if (respout)
 757                 {
 758                 derbio = BIO_new_file(respout, "wb");
 759                 if(!derbio)
 760                         {
 761                         BIO_printf(bio_err, "Error opening file %s\n", respout);
 762                         goto end;
 763                         }
 764                 i2d_OCSP_RESPONSE_bio(derbio, resp);
 765                 BIO_free(derbio);
 766                 }
 767
 768         i = OCSP_response_status(resp);
 769
 770         if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL)
 771                 {
 772                 BIO_printf(out, "Responder Error: %s (%d)\n",
 773                                 OCSP_response_status_str(i), i);
 774                 if (ignore_err)
 775                         goto redo_accept;
 776                 ret = 0;
 777                 goto end;
 778                 }
 779
 780         if (resp_text) OCSP_RESPONSE_print(out, resp, 0);
 781
 782         /* If running as responder don't verify our own response */
 783         if (cbio)
 784                 {
 785                 if (accept_count > 0)
 786                         accept_count--;
 787                 /* Redo if more connections needed */
 788                 if (accept_count)
 789                         {
 790                         BIO_free_all(cbio);
 791                         cbio = NULL;
 792                         OCSP_REQUEST_free(req);
 793                         req = NULL;
 794                         OCSP_RESPONSE_free(resp);
 795                         resp = NULL;
 796                         goto redo_accept;
 797                         }
 798                 goto end;
 799                 }
 800
 801         if (!store)
 802                 store = setup_verify(bio_err, CAfile, CApath);
 803         if (!store)
 804                 goto end;
 805         if (verify_certfile)
 806                 {
 807                 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM,
 808                         NULL, e, "validator certificate");
 809                 if (!verify_other) goto end;
 810                 }
 811
 812         bs = OCSP_response_get1_basic(resp);
 813
 814         if (!bs)
 815                 {
 816                 BIO_printf(bio_err, "Error parsing response\n");
 817                 goto end;
 818                 }
 819
 820         if (!noverify)
 821                 {
 822                 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0))
 823                         {
 824                         if (i == -1)
 825                                 BIO_printf(bio_err, "WARNING: no nonce in response\n");
 826                         else
 827                                 {
 828                                 BIO_printf(bio_err, "Nonce Verify error\n");
 829                                 goto end;
 830                                 }
 831                         }
 832
 833                 i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
 834                 if (i < 0) i = OCSP_basic_verify(bs, NULL, store, 0);
 835
 836                 if(i <= 0)
 837                         {
 838                         BIO_printf(bio_err, "Response Verify Failure\n");
 839                         ERR_print_errors(bio_err);
 840                         }
 841                 else
 842                         BIO_printf(bio_err, "Response verify OK\n");
 843
 844                 }
 845
 846         if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage))
 847                 goto end;
 848
 849         ret = 0;
 850
 851 end:
 852         ERR_print_errors(bio_err);
 853         X509_free(signer);
 854         X509_STORE_free(store);
 855         EVP_PKEY_free(key);
 856         EVP_PKEY_free(rkey);
 857         X509_free(issuer);
 858         X509_free(cert);
 859         X509_free(rsigner);
 860         X509_free(rca_cert);
 861         free_index(rdb);
 862         BIO_free_all(cbio);
 863         BIO_free_all(acbio);
 864         BIO_free(out);
 865         OCSP_REQUEST_free(req);
 866         OCSP_RESPONSE_free(resp);
 867         OCSP_BASICRESP_free(bs);
 868         sk_free(reqnames);
 869         sk_OCSP_CERTID_free(ids);
 870         sk_X509_pop_free(sign_other, X509_free);
 871         sk_X509_pop_free(verify_other, X509_free);
 872
 873         if (use_ssl != -1)
 874                 {
 875                 OPENSSL_free(host);
 876                 OPENSSL_free(port);
 877                 OPENSSL_free(path);
 878                 }
 879
 880         OPENSSL_EXIT(ret);
 881 }
 882
 883 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, X509 *issuer,
 884                                 STACK_OF(OCSP_CERTID) *ids)
 885         {
 886         OCSP_CERTID *id;
 887         if(!issuer)
 888                 {
 889                 BIO_printf(bio_err, "No issuer certificate specified\n");
 890                 return 0;
 891                 }
 892         if(!*req) *req = OCSP_REQUEST_new();
 893         if(!*req) goto err;
 894         id = OCSP_cert_to_id(NULL, cert, issuer);
 895         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 896         if(!OCSP_request_add0_id(*req, id)) goto err;
 897         return 1;
 898
 899         err:
 900         BIO_printf(bio_err, "Error Creating OCSP request\n");
 901         return 0;
 902         }
 903
 904 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, X509 *issuer,
 905                                 STACK_OF(OCSP_CERTID) *ids)
 906         {
 907         OCSP_CERTID *id;
 908         X509_NAME *iname;
 909         ASN1_BIT_STRING *ikey;
 910         ASN1_INTEGER *sno;
 911         if(!issuer)
 912                 {
 913                 BIO_printf(bio_err, "No issuer certificate specified\n");
 914                 return 0;
 915                 }
 916         if(!*req) *req = OCSP_REQUEST_new();
 917         if(!*req) goto err;
 918         iname = X509_get_subject_name(issuer);
 919         ikey = X509_get0_pubkey_bitstr(issuer);
 920         sno = s2i_ASN1_INTEGER(NULL, serial);
 921         if(!sno)
 922                 {
 923                 BIO_printf(bio_err, "Error converting serial number %s\n", serial);
 924                 return 0;
 925                 }
 926         id = OCSP_cert_id_new(EVP_sha1(), iname, ikey, sno);
 927         ASN1_INTEGER_free(sno);
 928         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 929         if(!OCSP_request_add0_id(*req, id)) goto err;
 930         return 1;
 931
 932         err:
 933         BIO_printf(bio_err, "Error Creating OCSP request\n");
 934         return 0;
 935         }
 936
 937 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
 938                                         STACK *names, STACK_OF(OCSP_CERTID) *ids,
 939                                         long nsec, long maxage)
 940         {
 941         OCSP_CERTID *id;
 942         char *name;
 943         int i;
 944
 945         int status, reason;
 946
 947         ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
 948
 949         if (!bs || !req || !sk_num(names) || !sk_OCSP_CERTID_num(ids))
 950                 return 1;
 951
 952         for (i = 0; i < sk_OCSP_CERTID_num(ids); i++)
 953                 {
 954                 id = sk_OCSP_CERTID_value(ids, i);
 955                 name = sk_value(names, i);
 956                 BIO_printf(out, "%s: ", name);
 957
 958                 if(!OCSP_resp_find_status(bs, id, &status, &reason,
 959                                         &rev, &thisupd, &nextupd))
 960                         {
 961                         BIO_puts(out, "ERROR: No Status found.\n");
 962                         continue;
 963                         }
 964
 965                 /* Check validity: if invalid write to output BIO so we
 966                  * know which response this refers to.
 967                  */
 968                 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage))
 969                         {
 970                         BIO_puts(out, "WARNING: Status times invalid.\n");
 971                         ERR_print_errors(out);
 972                         }
 973                 BIO_printf(out, "%s\n", OCSP_cert_status_str(status));
 974
 975                 BIO_puts(out, "\tThis Update: ");
 976                 ASN1_GENERALIZEDTIME_print(out, thisupd);
 977                 BIO_puts(out, "\n");
 978
 979                 if(nextupd)
 980                         {
 981                         BIO_puts(out, "\tNext Update: ");
 982                         ASN1_GENERALIZEDTIME_print(out, nextupd);
 983                         BIO_puts(out, "\n");
 984                         }
 985
 986                 if (status != V_OCSP_CERTSTATUS_REVOKED)
 987                         continue;
 988
 989                 if (reason != -1)
 990                         BIO_printf(out, "\tReason: %s\n",
 991                                 OCSP_crl_reason_str(reason));
 992
 993                 BIO_puts(out, "\tRevocation Time: ");
 994                 ASN1_GENERALIZEDTIME_print(out, rev);
 995                 BIO_puts(out, "\n");
 996                 }
 997
 998         return 1;
 999         }
1000
1001
1002 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
1003                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
1004                         STACK_OF(X509) *rother, unsigned long flags,
1005                         int nmin, int ndays)
1006         {
1007         ASN1_TIME *thisupd = NULL, *nextupd = NULL;
1008         OCSP_CERTID *cid, *ca_id = NULL;
1009         OCSP_BASICRESP *bs = NULL;
1010         int i, id_count, ret = 1;
1011
1012
1013         id_count = OCSP_request_onereq_count(req);
1014
1015         if (id_count <= 0)
1016                 {
1017                 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
1018                 goto end;
1019                 }
1020
1021         ca_id = OCSP_cert_to_id(EVP_sha1(), NULL, ca);
1022
1023         bs = OCSP_BASICRESP_new();
1024         thisupd = X509_gmtime_adj(NULL, 0);
1025         if (ndays != -1)
1026                 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 );
1027
1028         /* Examine each certificate id in the request */
1029         for (i = 0; i < id_count; i++)
1030                 {
1031                 OCSP_ONEREQ *one;
1032                 ASN1_INTEGER *serial;
1033                 char **inf;
1034                 one = OCSP_request_onereq_get0(req, i);
1035                 cid = OCSP_onereq_get0_id(one);
1036                 /* Is this request about our CA? */
1037                 if (OCSP_id_issuer_cmp(ca_id, cid))
1038                         {
1039                         OCSP_basic_add1_status(bs, cid,
1040                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1041                                                 0, NULL,
1042                                                 thisupd, nextupd);
1043                         continue;
1044                         }
1045                 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
1046                 inf = lookup_serial(db, serial);
1047                 if (!inf)
1048                         OCSP_basic_add1_status(bs, cid,
1049                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1050                                                 0, NULL,
1051                                                 thisupd, nextupd);
1052                 else if (inf[DB_type][0] == DB_TYPE_VAL)
1053                         OCSP_basic_add1_status(bs, cid,
1054                                                 V_OCSP_CERTSTATUS_GOOD,
1055                                                 0, NULL,
1056                                                 thisupd, nextupd);
1057                 else if (inf[DB_type][0] == DB_TYPE_REV)
1058                         {
1059                         ASN1_OBJECT *inst = NULL;
1060                         ASN1_TIME *revtm = NULL;
1061                         ASN1_GENERALIZEDTIME *invtm = NULL;
1062                         OCSP_SINGLERESP *single;
1063                         int reason = -1;
1064                         unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]);
1065                         single = OCSP_basic_add1_status(bs, cid,
1066                                                 V_OCSP_CERTSTATUS_REVOKED,
1067                                                 reason, revtm,
1068                                                 thisupd, nextupd);
1069                         if (invtm)
1070                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, invtm, 0, 0);
1071                         else if (inst)
1072                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_hold_instruction_code, inst, 0, 0);
1073                         ASN1_OBJECT_free(inst);
1074                         ASN1_TIME_free(revtm);
1075                         ASN1_GENERALIZEDTIME_free(invtm);
1076                         }
1077                 }
1078
1079         OCSP_copy_nonce(bs, req);
1080
1081         OCSP_basic_sign(bs, rcert, rkey, EVP_sha1(), rother, flags);
1082
1083         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);
1084
1085         end:
1086         ASN1_TIME_free(thisupd);
1087         ASN1_TIME_free(nextupd);
1088         OCSP_CERTID_free(ca_id);
1089         OCSP_BASICRESP_free(bs);
1090         return ret;
1091
1092         }
1093
1094 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
1095         {
1096         int i;
1097         BIGNUM *bn = NULL;
1098         char *itmp, *row[DB_NUMBER],**rrow;
1099         for (i = 0; i < DB_NUMBER; i++) row[i] = NULL;
1100         bn = ASN1_INTEGER_to_BN(ser,NULL);
1101         OPENSSL_assert(bn); /* FIXME: should report an error at this point and abort */
1102         if (BN_is_zero(bn))
1103                 itmp = BUF_strdup("00");
1104         else
1105                 itmp = BN_bn2hex(bn);
1106         row[DB_serial] = itmp;
1107         BN_free(bn);
1108         rrow=TXT_DB_get_by_index(db->db,DB_serial,row);
1109         OPENSSL_free(itmp);
1110         return rrow;
1111         }
1112
1113 /* Quick and dirty OCSP server: read in and parse input request */
1114
1115 static BIO *init_responder(char *port)
1116         {
1117         BIO *acbio = NULL, *bufbio = NULL;
1118         bufbio = BIO_new(BIO_f_buffer());
1119         if (!bufbio)
1120                 goto err;
1121 #ifndef OPENSSL_NO_SOCK
1122         acbio = BIO_new_accept(port);
1123 #else
1124         BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n");
1125 #endif
1126         if (!acbio)
1127                 goto err;
1128         BIO_set_accept_bios(acbio, bufbio);
1129         bufbio = NULL;
1130
1131         if (BIO_do_accept(acbio) <= 0)
1132                 {
1133                         BIO_printf(bio_err, "Error setting up accept BIO\n");
1134                         ERR_print_errors(bio_err);
1135                         goto err;
1136                 }
1137
1138         return acbio;
1139
1140         err:
1141         BIO_free_all(acbio);
1142         BIO_free(bufbio);
1143         return NULL;
1144         }
1145
1146 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port)
1147         {
1148         int have_post = 0, len;
1149         OCSP_REQUEST *req = NULL;
1150         char inbuf[1024];
1151         BIO *cbio = NULL;
1152
1153         if (BIO_do_accept(acbio) <= 0)
1154                 {
1155                         BIO_printf(bio_err, "Error accepting connection\n");
1156                         ERR_print_errors(bio_err);
1157                         return 0;
1158                 }
1159
1160         cbio = BIO_pop(acbio);
1161         *pcbio = cbio;
1162
1163         for(;;)
1164                 {
1165                 len = BIO_gets(cbio, inbuf, sizeof inbuf);
1166                 if (len <= 0)
1167                         return 1;
1168                 /* Look for "POST" signalling start of query */
1169                 if (!have_post)
1170                         {
1171                         if(strncmp(inbuf, "POST", 4))
1172                                 {
1173                                 BIO_printf(bio_err, "Invalid request\n");
1174                                 return 1;
1175                                 }
1176                         have_post = 1;
1177                         }
1178                 /* Look for end of headers */
1179                 if ((inbuf[0] == '\r') || (inbuf[0] == '\n'))
1180                         break;
1181                 }
1182
1183         /* Try to read OCSP request */
1184
1185         req = d2i_OCSP_REQUEST_bio(cbio, NULL);
1186
1187         if (!req)
1188                 {
1189                 BIO_printf(bio_err, "Error parsing OCSP request\n");
1190                 ERR_print_errors(bio_err);
1191                 }
1192
1193         *preq = req;
1194
1195         return 1;
1196
1197         }
1198
1199 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
1200         {
1201         char http_resp[] =
1202                 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n"
1203                 "Content-Length: %d\r\n\r\n";
1204         if (!cbio)
1205                 return 0;
1206         BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
1207         i2d_OCSP_RESPONSE_bio(cbio, resp);
1208         (void)BIO_flush(cbio);
1209         return 1;
1210         }
1211
1212 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
1213                                 OCSP_REQUEST *req, int req_timeout)
1214         {
1215         int fd;
1216         int rv;
1217         OCSP_REQ_CTX *ctx = NULL;
1218         OCSP_RESPONSE *rsp = NULL;
1219         fd_set confds;
1220         struct timeval tv;
1221
1222         if (req_timeout != -1)
1223                 BIO_set_nbio(cbio, 1);
1224
1225         rv = BIO_do_connect(cbio);
1226
1227         if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio)))
1228                 {
1229                 BIO_puts(err, "Error connecting BIO\n");
1230                 return NULL;
1231                 }
1232
1233         if (req_timeout == -1)
1234                 return OCSP_sendreq_bio(cbio, path, req);
1235
1236         if (BIO_get_fd(cbio, &fd) <= 0)
1237                 {
1238                 BIO_puts(err, "Can't get connection fd\n");
1239                 goto err;
1240                 }
1241
1242         if (rv <= 0)
1243                 {
1244                 FD_ZERO(&confds);
1245                 openssl_fdset(fd, &confds);
1246                 tv.tv_usec = 0;
1247                 tv.tv_sec = req_timeout;
1248                 rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1249                 if (rv == 0)
1250                         {
1251                         BIO_puts(err, "Timeout on connect\n");
1252                         return NULL;
1253                         }
1254                 }
1255
1256
1257         ctx = OCSP_sendreq_new(cbio, path, req, -1);
1258         if (!ctx)
1259                 return NULL;
1260
1261         for (;;)
1262                 {
1263                 rv = OCSP_sendreq_nbio(&rsp, ctx);
1264                 if (rv != -1)
1265                         break;
1266                 FD_ZERO(&confds);
1267                 openssl_fdset(fd, &confds);
1268                 tv.tv_usec = 0;
1269                 tv.tv_sec = req_timeout;
1270                 if (BIO_should_read(cbio))
1271                         rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv);
1272                 else if (BIO_should_write(cbio))
1273                         rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1274                 else
1275                         {
1276                         BIO_puts(err, "Unexpected retry condition\n");
1277                         goto err;
1278                         }
1279                 if (rv == 0)
1280                         {
1281                         BIO_puts(err, "Timeout on request\n");
1282                         break;
1283                         }
1284                 if (rv == -1)
1285                         {
1286                         BIO_puts(err, "Select error\n");
1287                         break;
1288                         }
1289
1290                 }
1291         err:
1292         if (ctx)
1293                 OCSP_REQ_CTX_free(ctx);
1294
1295         return rsp;
1296         }
1297
1298 OCSP_RESPONSE *process_responder(BIO *err, OCSP_REQUEST *req,
1299                         char *host, char *path, char *port, int use_ssl,
1300                         int req_timeout)
1301         {
1302         BIO *cbio = NULL;
1303         SSL_CTX *ctx = NULL;
1304         OCSP_RESPONSE *resp = NULL;
1305         cbio = BIO_new_connect(host);
1306         if (!cbio)
1307                 {
1308                 BIO_printf(err, "Error creating connect BIO\n");
1309                 goto end;
1310                 }
1311         if (port) BIO_set_conn_port(cbio, port);
1312         if (use_ssl == 1)
1313                 {
1314                 BIO *sbio;
1315 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
1316                 ctx = SSL_CTX_new(SSLv23_client_method());
1317 #elif !defined(OPENSSL_NO_SSL3)
1318                 ctx = SSL_CTX_new(SSLv3_client_method());
1319 #elif !defined(OPENSSL_NO_SSL2)
1320                 ctx = SSL_CTX_new(SSLv2_client_method());
1321 #else
1322                 BIO_printf(err, "SSL is disabled\n");
1323                         goto end;
1324 #endif
1325                 if (ctx == NULL)
1326                         {
1327                         BIO_printf(err, "Error creating SSL context.\n");
1328                         goto end;
1329                         }
1330                 SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
1331                 sbio = BIO_new_ssl(ctx, 1);
1332                 cbio = BIO_push(sbio, cbio);
1333                 }
1334         resp = query_responder(err, cbio, path, req, req_timeout);
1335         if (!resp)
1336                 BIO_printf(bio_err, "Error querying OCSP responsder\n");
1337         end:
1338         if (ctx)
1339                 SSL_CTX_free(ctx);
1340         if (cbio)
1341                 BIO_free_all(cbio);
1342         return resp;
1343         }
1344
1345 #endif