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
  60 #include <stdio.h>
  61 #include <stdlib.h>
  62 #include <string.h>
  63 #include <openssl/e_os2.h>
  64 #include <openssl/bio.h>
  65 #include <openssl/ocsp.h>
  66 #include <openssl/txt_db.h>
  67 #include <openssl/ssl.h>
  68 #include <openssl/evp.h>
  69 #include "apps.h"
  70
  71 /* Maximum leeway in validity period: default 5 minutes */
  72 #define MAX_VALIDITY_PERIOD     (5 * 60)
  73
  74 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md, X509 *issuer,
  75                                 STACK_OF(OCSP_CERTID) *ids);
  76 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, const EVP_MD * cert_id_md, X509 *issuer,
  77                                 STACK_OF(OCSP_CERTID) *ids);
  78 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
  79                                 STACK *names, STACK_OF(OCSP_CERTID) *ids,
  80                                 long nsec, long maxage);
  81
  82 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
  83                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
  84                         STACK_OF(X509) *rother, unsigned long flags,
  85                         int nmin, int ndays);
  86
  87 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser);
  88 static BIO *init_responder(char *port);
  89 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port);
  90 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp);
  91 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
  92                                 OCSP_REQUEST *req, int req_timeout);
  93
  94 #undef PROG
  95 #define PROG ocsp_main
  96
  97 int MAIN(int, char **);
  98
  99 int MAIN(int argc, char **argv)
 100         {
 101         ENGINE *e = NULL;
 102         char **args;
 103         char *host = NULL, *port = NULL, *path = "/";
 104         char *reqin = NULL, *respin = NULL;
 105         char *reqout = NULL, *respout = NULL;
 106         char *signfile = NULL, *keyfile = NULL;
 107         char *rsignfile = NULL, *rkeyfile = NULL;
 108         char *outfile = NULL;
 109         int add_nonce = 1, noverify = 0, use_ssl = -1;
 110         OCSP_REQUEST *req = NULL;
 111         OCSP_RESPONSE *resp = NULL;
 112         OCSP_BASICRESP *bs = NULL;
 113         X509 *issuer = NULL, *cert = NULL;
 114         X509 *signer = NULL, *rsigner = NULL;
 115         EVP_PKEY *key = NULL, *rkey = NULL;
 116         BIO *acbio = NULL, *cbio = NULL;
 117         BIO *derbio = NULL;
 118         BIO *out = NULL;
 119         int req_timeout = -1;
 120         int req_text = 0, resp_text = 0;
 121         long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
 122         char *CAfile = NULL, *CApath = NULL;
 123         X509_STORE *store = NULL;
 124         STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL;
 125         char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL;
 126         unsigned long sign_flags = 0, verify_flags = 0, rflags = 0;
 127         int ret = 1;
 128         int accept_count = -1;
 129         int badarg = 0;
 130         int i;
 131         int ignore_err = 0;
 132         STACK *reqnames = NULL;
 133         STACK_OF(OCSP_CERTID) *ids = NULL;
 134
 135         X509 *rca_cert = NULL;
 136         char *ridx_filename = NULL;
 137         char *rca_filename = NULL;
 138         CA_DB *rdb = NULL;
 139         int nmin = 0, ndays = -1;
 140         const EVP_MD *cert_id_md = NULL;
 141
 142         if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
 143
 144         if (!load_config(bio_err, NULL))
 145                 goto end;
 146         SSL_load_error_strings();
 147         OpenSSL_add_ssl_algorithms();
 148         args = argv + 1;
 149         reqnames = sk_new_null();
 150         ids = sk_OCSP_CERTID_new_null();
 151         while (!badarg && *args && *args[0] == '-')
 152                 {
 153                 if (!strcmp(*args, "-out"))
 154                         {
 155                         if (args[1])
 156                                 {
 157                                 args++;
 158                                 outfile = *args;
 159                                 }
 160                         else badarg = 1;
 161                         }
 162                 else if (!strcmp(*args, "-timeout"))
 163                         {
 164                         if (args[1])
 165                                 {
 166                                 args++;
 167                                 req_timeout = atol(*args);
 168                                 if (req_timeout < 0)
 169                                         {
 170                                         BIO_printf(bio_err,
 171                                                 "Illegal timeout value %s\n",
 172                                                 *args);
 173                                         badarg = 1;
 174                                         }
 175                                 }
 176                         else badarg = 1;
 177                         }
 178                 else if (!strcmp(*args, "-url"))
 179                         {
 180                         if (args[1])
 181                                 {
 182                                 args++;
 183                                 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl))
 184                                         {
 185                                         BIO_printf(bio_err, "Error parsing URL\n");
 186                                         badarg = 1;
 187                                         }
 188                                 }
 189                         else badarg = 1;
 190                         }
 191                 else if (!strcmp(*args, "-host"))
 192                         {
 193                         if (args[1])
 194                                 {
 195                                 args++;
 196                                 host = *args;
 197                                 }
 198                         else badarg = 1;
 199                         }
 200                 else if (!strcmp(*args, "-port"))
 201                         {
 202                         if (args[1])
 203                                 {
 204                                 args++;
 205                                 port = *args;
 206                                 }
 207                         else badarg = 1;
 208                         }
 209                 else if (!strcmp(*args, "-ignore_err"))
 210                         ignore_err = 1;
 211                 else if (!strcmp(*args, "-noverify"))
 212                         noverify = 1;
 213                 else if (!strcmp(*args, "-nonce"))
 214                         add_nonce = 2;
 215                 else if (!strcmp(*args, "-no_nonce"))
 216                         add_nonce = 0;
 217                 else if (!strcmp(*args, "-resp_no_certs"))
 218                         rflags |= OCSP_NOCERTS;
 219                 else if (!strcmp(*args, "-resp_key_id"))
 220                         rflags |= OCSP_RESPID_KEY;
 221                 else if (!strcmp(*args, "-no_certs"))
 222                         sign_flags |= OCSP_NOCERTS;
 223                 else if (!strcmp(*args, "-no_signature_verify"))
 224                         verify_flags |= OCSP_NOSIGS;
 225                 else if (!strcmp(*args, "-no_cert_verify"))
 226                         verify_flags |= OCSP_NOVERIFY;
 227                 else if (!strcmp(*args, "-no_chain"))
 228                         verify_flags |= OCSP_NOCHAIN;
 229                 else if (!strcmp(*args, "-no_cert_checks"))
 230                         verify_flags |= OCSP_NOCHECKS;
 231                 else if (!strcmp(*args, "-no_explicit"))
 232                         verify_flags |= OCSP_NOEXPLICIT;
 233                 else if (!strcmp(*args, "-trust_other"))
 234                         verify_flags |= OCSP_TRUSTOTHER;
 235                 else if (!strcmp(*args, "-no_intern"))
 236                         verify_flags |= OCSP_NOINTERN;
 237                 else if (!strcmp(*args, "-text"))
 238                         {
 239                         req_text = 1;
 240                         resp_text = 1;
 241                         }
 242                 else if (!strcmp(*args, "-req_text"))
 243                         req_text = 1;
 244                 else if (!strcmp(*args, "-resp_text"))
 245                         resp_text = 1;
 246                 else if (!strcmp(*args, "-reqin"))
 247                         {
 248                         if (args[1])
 249                                 {
 250                                 args++;
 251                                 reqin = *args;
 252                                 }
 253                         else badarg = 1;
 254                         }
 255                 else if (!strcmp(*args, "-respin"))
 256                         {
 257                         if (args[1])
 258                                 {
 259                                 args++;
 260                                 respin = *args;
 261                                 }
 262                         else badarg = 1;
 263                         }
 264                 else if (!strcmp(*args, "-signer"))
 265                         {
 266                         if (args[1])
 267                                 {
 268                                 args++;
 269                                 signfile = *args;
 270                                 }
 271                         else badarg = 1;
 272                         }
 273                 else if (!strcmp (*args, "-VAfile"))
 274                         {
 275                         if (args[1])
 276                                 {
 277                                 args++;
 278                                 verify_certfile = *args;
 279                                 verify_flags |= OCSP_TRUSTOTHER;
 280                                 }
 281                         else badarg = 1;
 282                         }
 283                 else if (!strcmp(*args, "-sign_other"))
 284                         {
 285                         if (args[1])
 286                                 {
 287                                 args++;
 288                                 sign_certfile = *args;
 289                                 }
 290                         else badarg = 1;
 291                         }
 292                 else if (!strcmp(*args, "-verify_other"))
 293                         {
 294                         if (args[1])
 295                                 {
 296                                 args++;
 297                                 verify_certfile = *args;
 298                                 }
 299                         else badarg = 1;
 300                         }
 301                 else if (!strcmp (*args, "-CAfile"))
 302                         {
 303                         if (args[1])
 304                                 {
 305                                 args++;
 306                                 CAfile = *args;
 307                                 }
 308                         else badarg = 1;
 309                         }
 310                 else if (!strcmp (*args, "-CApath"))
 311                         {
 312                         if (args[1])
 313                                 {
 314                                 args++;
 315                                 CApath = *args;
 316                                 }
 317                         else badarg = 1;
 318                         }
 319                 else if (!strcmp (*args, "-validity_period"))
 320                         {
 321                         if (args[1])
 322                                 {
 323                                 args++;
 324                                 nsec = atol(*args);
 325                                 if (nsec < 0)
 326                                         {
 327                                         BIO_printf(bio_err,
 328                                                 "Illegal validity period %s\n",
 329                                                 *args);
 330                                         badarg = 1;
 331                                         }
 332                                 }
 333                         else badarg = 1;
 334                         }
 335                 else if (!strcmp (*args, "-status_age"))
 336                         {
 337                         if (args[1])
 338                                 {
 339                                 args++;
 340                                 maxage = atol(*args);
 341                                 if (maxage < 0)
 342                                         {
 343                                         BIO_printf(bio_err,
 344                                                 "Illegal validity age %s\n",
 345                                                 *args);
 346                                         badarg = 1;
 347                                         }
 348                                 }
 349                         else badarg = 1;
 350                         }
 351                  else if (!strcmp(*args, "-signkey"))
 352                         {
 353                         if (args[1])
 354                                 {
 355                                 args++;
 356                                 keyfile = *args;
 357                                 }
 358                         else badarg = 1;
 359                         }
 360                 else if (!strcmp(*args, "-reqout"))
 361                         {
 362                         if (args[1])
 363                                 {
 364                                 args++;
 365                                 reqout = *args;
 366                                 }
 367                         else badarg = 1;
 368                         }
 369                 else if (!strcmp(*args, "-respout"))
 370                         {
 371                         if (args[1])
 372                                 {
 373                                 args++;
 374                                 respout = *args;
 375                                 }
 376                         else badarg = 1;
 377                         }
 378                  else if (!strcmp(*args, "-path"))
 379                         {
 380                         if (args[1])
 381                                 {
 382                                 args++;
 383                                 path = *args;
 384                                 }
 385                         else badarg = 1;
 386                         }
 387                 else if (!strcmp(*args, "-issuer"))
 388                         {
 389                         if (args[1])
 390                                 {
 391                                 args++;
 392                                 X509_free(issuer);
 393                                 issuer = load_cert(bio_err, *args, FORMAT_PEM,
 394                                         NULL, e, "issuer certificate");
 395                                 if(!issuer) goto end;
 396                                 }
 397                         else badarg = 1;
 398                         }
 399                 else if (!strcmp (*args, "-cert"))
 400                         {
 401                         if (args[1])
 402                                 {
 403                                 args++;
 404                                 X509_free(cert);
 405                                 cert = load_cert(bio_err, *args, FORMAT_PEM,
 406                                         NULL, e, "certificate");
 407                                 if(!cert) goto end;
 408                                 if (!cert_id_md) cert_id_md = EVP_sha1();
 409                                 if(!add_ocsp_cert(&req, cert, cert_id_md, issuer, ids))
 410                                         goto end;
 411                                 if(!sk_push(reqnames, *args))
 412                                         goto end;
 413                                 }
 414                         else badarg = 1;
 415                         }
 416                 else if (!strcmp(*args, "-serial"))
 417                         {
 418                         if (args[1])
 419                                 {
 420                                 args++;
 421                                 if (!cert_id_md) cert_id_md = EVP_sha1();
 422                                 if(!add_ocsp_serial(&req, *args, cert_id_md, issuer, ids))
 423                                         goto end;
 424                                 if(!sk_push(reqnames, *args))
 425                                         goto end;
 426                                 }
 427                         else badarg = 1;
 428                         }
 429                 else if (!strcmp(*args, "-index"))
 430                         {
 431                         if (args[1])
 432                                 {
 433                                 args++;
 434                                 ridx_filename = *args;
 435                                 }
 436                         else badarg = 1;
 437                         }
 438                 else if (!strcmp(*args, "-CA"))
 439                         {
 440                         if (args[1])
 441                                 {
 442                                 args++;
 443                                 rca_filename = *args;
 444                                 }
 445                         else badarg = 1;
 446                         }
 447                 else if (!strcmp (*args, "-nmin"))
 448                         {
 449                         if (args[1])
 450                                 {
 451                                 args++;
 452                                 nmin = atol(*args);
 453                                 if (nmin < 0)
 454                                         {
 455                                         BIO_printf(bio_err,
 456                                                 "Illegal update period %s\n",
 457                                                 *args);
 458                                         badarg = 1;
 459                                         }
 460                                 }
 461                                 if (ndays == -1)
 462                                         ndays = 0;
 463                         else badarg = 1;
 464                         }
 465                 else if (!strcmp (*args, "-nrequest"))
 466                         {
 467                         if (args[1])
 468                                 {
 469                                 args++;
 470                                 accept_count = atol(*args);
 471                                 if (accept_count < 0)
 472                                         {
 473                                         BIO_printf(bio_err,
 474                                                 "Illegal accept count %s\n",
 475                                                 *args);
 476                                         badarg = 1;
 477                                         }
 478                                 }
 479                         else badarg = 1;
 480                         }
 481                 else if (!strcmp (*args, "-ndays"))
 482                         {
 483                         if (args[1])
 484                                 {
 485                                 args++;
 486                                 ndays = atol(*args);
 487                                 if (ndays < 0)
 488                                         {
 489                                         BIO_printf(bio_err,
 490                                                 "Illegal update period %s\n",
 491                                                 *args);
 492                                         badarg = 1;
 493                                         }
 494                                 }
 495                         else badarg = 1;
 496                         }
 497                 else if (!strcmp(*args, "-rsigner"))
 498                         {
 499                         if (args[1])
 500                                 {
 501                                 args++;
 502                                 rsignfile = *args;
 503                                 }
 504                         else badarg = 1;
 505                         }
 506                 else if (!strcmp(*args, "-rkey"))
 507                         {
 508                         if (args[1])
 509                                 {
 510                                 args++;
 511                                 rkeyfile = *args;
 512                                 }
 513                         else badarg = 1;
 514                         }
 515                 else if (!strcmp(*args, "-rother"))
 516                         {
 517                         if (args[1])
 518                                 {
 519                                 args++;
 520                                 rcertfile = *args;
 521                                 }
 522                         else badarg = 1;
 523                         }
 524                 else if ((cert_id_md = EVP_get_digestbyname((*args)+1))==NULL)
 525                         {
 526                         badarg = 1;
 527                         }
 528                 args++;
 529                 }
 530
 531         /* Have we anything to do? */
 532         if (!req && !reqin && !respin && !(port && ridx_filename)) badarg = 1;
 533
 534         if (badarg)
 535                 {
 536                 BIO_printf (bio_err, "OCSP utility\n");
 537                 BIO_printf (bio_err, "Usage ocsp [options]\n");
 538                 BIO_printf (bio_err, "where options are\n");
 539                 BIO_printf (bio_err, "-out file          output filename\n");
 540                 BIO_printf (bio_err, "-issuer file       issuer certificate\n");
 541                 BIO_printf (bio_err, "-cert file         certificate to check\n");
 542                 BIO_printf (bio_err, "-serial n          serial number to check\n");
 543                 BIO_printf (bio_err, "-signer file       certificate to sign OCSP request with\n");
 544                 BIO_printf (bio_err, "-signkey file      private key to sign OCSP request with\n");
 545                 BIO_printf (bio_err, "-sign_other file   additional certificates to include in signed request\n");
 546                 BIO_printf (bio_err, "-no_certs          don't include any certificates in signed request\n");
 547                 BIO_printf (bio_err, "-req_text          print text form of request\n");
 548                 BIO_printf (bio_err, "-resp_text         print text form of response\n");
 549                 BIO_printf (bio_err, "-text              print text form of request and response\n");
 550                 BIO_printf (bio_err, "-reqout file       write DER encoded OCSP request to \"file\"\n");
 551                 BIO_printf (bio_err, "-respout file      write DER encoded OCSP reponse to \"file\"\n");
 552                 BIO_printf (bio_err, "-reqin file        read DER encoded OCSP request from \"file\"\n");
 553                 BIO_printf (bio_err, "-respin file       read DER encoded OCSP reponse from \"file\"\n");
 554                 BIO_printf (bio_err, "-nonce             add OCSP nonce to request\n");
 555                 BIO_printf (bio_err, "-no_nonce          don't add OCSP nonce to request\n");
 556                 BIO_printf (bio_err, "-url URL           OCSP responder URL\n");
 557                 BIO_printf (bio_err, "-host host:n       send OCSP request to host on port n\n");
 558                 BIO_printf (bio_err, "-path              path to use in OCSP request\n");
 559                 BIO_printf (bio_err, "-CApath dir        trusted certificates directory\n");
 560                 BIO_printf (bio_err, "-CAfile file       trusted certificates file\n");
 561                 BIO_printf (bio_err, "-VAfile file       validator certificates file\n");
 562                 BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n");
 563                 BIO_printf (bio_err, "-status_age n      maximum status age in seconds\n");
 564                 BIO_printf (bio_err, "-noverify          don't verify response at all\n");
 565                 BIO_printf (bio_err, "-verify_other file additional certificates to search for signer\n");
 566                 BIO_printf (bio_err, "-trust_other       don't verify additional certificates\n");
 567                 BIO_printf (bio_err, "-no_intern         don't search certificates contained in response for signer\n");
 568                 BIO_printf (bio_err, "-no_signature_verify don't check signature on response\n");
 569                 BIO_printf (bio_err, "-no_cert_verify    don't check signing certificate\n");
 570                 BIO_printf (bio_err, "-no_chain          don't chain verify response\n");
 571                 BIO_printf (bio_err, "-no_cert_checks    don't do additional checks on signing certificate\n");
 572                 BIO_printf (bio_err, "-port num          port to run responder on\n");
 573                 BIO_printf (bio_err, "-index file        certificate status index file\n");
 574                 BIO_printf (bio_err, "-CA file           CA certificate\n");
 575                 BIO_printf (bio_err, "-rsigner file      responder certificate to sign responses with\n");
 576                 BIO_printf (bio_err, "-rkey file         responder key to sign responses with\n");
 577                 BIO_printf (bio_err, "-rother file       other certificates to include in response\n");
 578                 BIO_printf (bio_err, "-resp_no_certs     don't include any certificates in response\n");
 579                 BIO_printf (bio_err, "-nmin n            number of minutes before next update\n");
 580                 BIO_printf (bio_err, "-ndays n           number of days before next update\n");
 581                 BIO_printf (bio_err, "-resp_key_id       identify reponse by signing certificate key ID\n");
 582                 BIO_printf (bio_err, "-nrequest n        number of requests to accept (default unlimited)\n");
 583                 BIO_printf (bio_err, "-<dgst alg>     use specified digest in the request");
 584                 goto end;
 585                 }
 586
 587         if(outfile) out = BIO_new_file(outfile, "w");
 588         else out = BIO_new_fp(stdout, BIO_NOCLOSE);
 589
 590         if(!out)
 591                 {
 592                 BIO_printf(bio_err, "Error opening output file\n");
 593                 goto end;
 594                 }
 595
 596         if (!req && (add_nonce != 2)) add_nonce = 0;
 597
 598         if (!req && reqin)
 599                 {
 600                 derbio = BIO_new_file(reqin, "rb");
 601                 if (!derbio)
 602                         {
 603                         BIO_printf(bio_err, "Error Opening OCSP request file\n");
 604                         goto end;
 605                         }
 606                 req = d2i_OCSP_REQUEST_bio(derbio, NULL);
 607                 BIO_free(derbio);
 608                 if(!req)
 609                         {
 610                         BIO_printf(bio_err, "Error reading OCSP request\n");
 611                         goto end;
 612                         }
 613                 }
 614
 615         if (!req && port)
 616                 {
 617                 acbio = init_responder(port);
 618                 if (!acbio)
 619                         goto end;
 620                 }
 621
 622         if (rsignfile && !rdb)
 623                 {
 624                 if (!rkeyfile) rkeyfile = rsignfile;
 625                 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM,
 626                         NULL, e, "responder certificate");
 627                 if (!rsigner)
 628                         {
 629                         BIO_printf(bio_err, "Error loading responder certificate\n");
 630                         goto end;
 631                         }
 632                 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM,
 633                         NULL, e, "CA certificate");
 634                 if (rcertfile)
 635                         {
 636                         rother = load_certs(bio_err, rcertfile, FORMAT_PEM,
 637                                 NULL, e, "responder other certificates");
 638                         if (!rother) goto end;
 639                         }
 640                 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL,
 641                         "responder private key");
 642                 if (!rkey)
 643                         goto end;
 644                 }
 645         if(acbio)
 646                 BIO_printf(bio_err, "Waiting for OCSP client connections...\n");
 647
 648         redo_accept:
 649
 650         if (acbio)
 651                 {
 652                 if (!do_responder(&req, &cbio, acbio, port))
 653                         goto end;
 654                 if (!req)
 655                         {
 656                         resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
 657                         send_ocsp_response(cbio, resp);
 658                         goto done_resp;
 659                         }
 660                 }
 661
 662         if (!req && (signfile || reqout || host || add_nonce || ridx_filename))
 663                 {
 664                 BIO_printf(bio_err, "Need an OCSP request for this operation!\n");
 665                 goto end;
 666                 }
 667
 668         if (req && add_nonce) OCSP_request_add1_nonce(req, NULL, -1);
 669
 670         if (signfile)
 671                 {
 672                 if (!keyfile) keyfile = signfile;
 673                 signer = load_cert(bio_err, signfile, FORMAT_PEM,
 674                         NULL, e, "signer certificate");
 675                 if (!signer)
 676                         {
 677                         BIO_printf(bio_err, "Error loading signer certificate\n");
 678                         goto end;
 679                         }
 680                 if (sign_certfile)
 681                         {
 682                         sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM,
 683                                 NULL, e, "signer certificates");
 684                         if (!sign_other) goto end;
 685                         }
 686                 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL,
 687                         "signer private key");
 688                 if (!key)
 689                         goto end;
 690
 691                 if (!OCSP_request_sign(req, signer, key, NULL, sign_other, sign_flags))
 692                         {
 693                         BIO_printf(bio_err, "Error signing OCSP request\n");
 694                         goto end;
 695                         }
 696                 }
 697
 698         if (req_text && req) OCSP_REQUEST_print(out, req, 0);
 699
 700         if (reqout)
 701                 {
 702                 derbio = BIO_new_file(reqout, "wb");
 703                 if(!derbio)
 704                         {
 705                         BIO_printf(bio_err, "Error opening file %s\n", reqout);
 706                         goto end;
 707                         }
 708                 i2d_OCSP_REQUEST_bio(derbio, req);
 709                 BIO_free(derbio);
 710                 }
 711
 712         if (ridx_filename && (!rkey || !rsigner || !rca_cert))
 713                 {
 714                 BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n");
 715                 goto end;
 716                 }
 717
 718         if (ridx_filename && !rdb)
 719                 {
 720                 rdb = load_index(ridx_filename, NULL);
 721                 if (!rdb) goto end;
 722                 if (!index_index(rdb)) goto end;
 723                 }
 724
 725         if (rdb)
 726                 {
 727                 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey, rother, rflags, nmin, ndays);
 728                 if (cbio)
 729                         send_ocsp_response(cbio, resp);
 730                 }
 731         else if (host)
 732                 {
 733 #ifndef OPENSSL_NO_SOCK
 734                 resp = process_responder(bio_err, req, host, path,
 735                                                 port, use_ssl, req_timeout);
 736                 if (!resp)
 737                         goto end;
 738 #else
 739                 BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n");
 740                 goto end;
 741 #endif
 742                 }
 743         else if (respin)
 744                 {
 745                 derbio = BIO_new_file(respin, "rb");
 746                 if (!derbio)
 747                         {
 748                         BIO_printf(bio_err, "Error Opening OCSP response file\n");
 749                         goto end;
 750                         }
 751                 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
 752                 BIO_free(derbio);
 753                 if(!resp)
 754                         {
 755                         BIO_printf(bio_err, "Error reading OCSP response\n");
 756                         goto end;
 757                         }
 758
 759                 }
 760         else
 761                 {
 762                 ret = 0;
 763                 goto end;
 764                 }
 765
 766         done_resp:
 767
 768         if (respout)
 769                 {
 770                 derbio = BIO_new_file(respout, "wb");
 771                 if(!derbio)
 772                         {
 773                         BIO_printf(bio_err, "Error opening file %s\n", respout);
 774                         goto end;
 775                         }
 776                 i2d_OCSP_RESPONSE_bio(derbio, resp);
 777                 BIO_free(derbio);
 778                 }
 779
 780         i = OCSP_response_status(resp);
 781
 782         if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL)
 783                 {
 784                 BIO_printf(out, "Responder Error: %s (%d)\n",
 785                                 OCSP_response_status_str(i), i);
 786                 if (ignore_err)
 787                         goto redo_accept;
 788                 ret = 0;
 789                 goto end;
 790                 }
 791
 792         if (resp_text) OCSP_RESPONSE_print(out, resp, 0);
 793
 794         /* If running as responder don't verify our own response */
 795         if (cbio)
 796                 {
 797                 if (accept_count > 0)
 798                         accept_count--;
 799                 /* Redo if more connections needed */
 800                 if (accept_count)
 801                         {
 802                         BIO_free_all(cbio);
 803                         cbio = NULL;
 804                         OCSP_REQUEST_free(req);
 805                         req = NULL;
 806                         OCSP_RESPONSE_free(resp);
 807                         resp = NULL;
 808                         goto redo_accept;
 809                         }
 810                 goto end;
 811                 }
 812
 813         if (!store)
 814                 store = setup_verify(bio_err, CAfile, CApath);
 815         if (!store)
 816                 goto end;
 817         if (verify_certfile)
 818                 {
 819                 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM,
 820                         NULL, e, "validator certificate");
 821                 if (!verify_other) goto end;
 822                 }
 823
 824         bs = OCSP_response_get1_basic(resp);
 825
 826         if (!bs)
 827                 {
 828                 BIO_printf(bio_err, "Error parsing response\n");
 829                 goto end;
 830                 }
 831
 832         if (!noverify)
 833                 {
 834                 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0))
 835                         {
 836                         if (i == -1)
 837                                 BIO_printf(bio_err, "WARNING: no nonce in response\n");
 838                         else
 839                                 {
 840                                 BIO_printf(bio_err, "Nonce Verify error\n");
 841                                 goto end;
 842                                 }
 843                         }
 844
 845                 i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
 846                 if (i < 0) i = OCSP_basic_verify(bs, NULL, store, 0);
 847
 848                 if(i <= 0)
 849                         {
 850                         BIO_printf(bio_err, "Response Verify Failure\n");
 851                         ERR_print_errors(bio_err);
 852                         }
 853                 else
 854                         BIO_printf(bio_err, "Response verify OK\n");
 855
 856                 }
 857
 858         if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage))
 859                 goto end;
 860
 861         ret = 0;
 862
 863 end:
 864         ERR_print_errors(bio_err);
 865         X509_free(signer);
 866         X509_STORE_free(store);
 867         EVP_PKEY_free(key);
 868         EVP_PKEY_free(rkey);
 869         X509_free(issuer);
 870         X509_free(cert);
 871         X509_free(rsigner);
 872         X509_free(rca_cert);
 873         free_index(rdb);
 874         BIO_free_all(cbio);
 875         BIO_free_all(acbio);
 876         BIO_free(out);
 877         OCSP_REQUEST_free(req);
 878         OCSP_RESPONSE_free(resp);
 879         OCSP_BASICRESP_free(bs);
 880         sk_free(reqnames);
 881         sk_OCSP_CERTID_free(ids);
 882         sk_X509_pop_free(sign_other, X509_free);
 883         sk_X509_pop_free(verify_other, X509_free);
 884
 885         if (use_ssl != -1)
 886                 {
 887                 OPENSSL_free(host);
 888                 OPENSSL_free(port);
 889                 OPENSSL_free(path);
 890                 }
 891
 892         OPENSSL_EXIT(ret);
 893 }
 894
 895 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md,X509 *issuer,
 896                                 STACK_OF(OCSP_CERTID) *ids)
 897         {
 898         OCSP_CERTID *id;
 899         if(!issuer)
 900                 {
 901                 BIO_printf(bio_err, "No issuer certificate specified\n");
 902                 return 0;
 903                 }
 904         if(!*req) *req = OCSP_REQUEST_new();
 905         if(!*req) goto err;
 906         id = OCSP_cert_to_id(cert_id_md, cert, issuer);
 907         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 908         if(!OCSP_request_add0_id(*req, id)) goto err;
 909         return 1;
 910
 911         err:
 912         BIO_printf(bio_err, "Error Creating OCSP request\n");
 913         return 0;
 914         }
 915
 916 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial,const EVP_MD *cert_id_md, X509 *issuer,
 917                                 STACK_OF(OCSP_CERTID) *ids)
 918         {
 919         OCSP_CERTID *id;
 920         X509_NAME *iname;
 921         ASN1_BIT_STRING *ikey;
 922         ASN1_INTEGER *sno;
 923         if(!issuer)
 924                 {
 925                 BIO_printf(bio_err, "No issuer certificate specified\n");
 926                 return 0;
 927                 }
 928         if(!*req) *req = OCSP_REQUEST_new();
 929         if(!*req) goto err;
 930         iname = X509_get_subject_name(issuer);
 931         ikey = X509_get0_pubkey_bitstr(issuer);
 932         sno = s2i_ASN1_INTEGER(NULL, serial);
 933         if(!sno)
 934                 {
 935                 BIO_printf(bio_err, "Error converting serial number %s\n", serial);
 936                 return 0;
 937                 }
 938         id = OCSP_cert_id_new(cert_id_md, iname, ikey, sno);
 939         ASN1_INTEGER_free(sno);
 940         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
 941         if(!OCSP_request_add0_id(*req, id)) goto err;
 942         return 1;
 943
 944         err:
 945         BIO_printf(bio_err, "Error Creating OCSP request\n");
 946         return 0;
 947         }
 948
 949 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
 950                                         STACK *names, STACK_OF(OCSP_CERTID) *ids,
 951                                         long nsec, long maxage)
 952         {
 953         OCSP_CERTID *id;
 954         char *name;
 955         int i;
 956
 957         int status, reason;
 958
 959         ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
 960
 961         if (!bs || !req || !sk_num(names) || !sk_OCSP_CERTID_num(ids))
 962                 return 1;
 963
 964         for (i = 0; i < sk_OCSP_CERTID_num(ids); i++)
 965                 {
 966                 id = sk_OCSP_CERTID_value(ids, i);
 967                 name = sk_value(names, i);
 968                 BIO_printf(out, "%s: ", name);
 969
 970                 if(!OCSP_resp_find_status(bs, id, &status, &reason,
 971                                         &rev, &thisupd, &nextupd))
 972                         {
 973                         BIO_puts(out, "ERROR: No Status found.\n");
 974                         continue;
 975                         }
 976
 977                 /* Check validity: if invalid write to output BIO so we
 978                  * know which response this refers to.
 979                  */
 980                 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage))
 981                         {
 982                         BIO_puts(out, "WARNING: Status times invalid.\n");
 983                         ERR_print_errors(out);
 984                         }
 985                 BIO_printf(out, "%s\n", OCSP_cert_status_str(status));
 986
 987                 BIO_puts(out, "\tThis Update: ");
 988                 ASN1_GENERALIZEDTIME_print(out, thisupd);
 989                 BIO_puts(out, "\n");
 990
 991                 if(nextupd)
 992                         {
 993                         BIO_puts(out, "\tNext Update: ");
 994                         ASN1_GENERALIZEDTIME_print(out, nextupd);
 995                         BIO_puts(out, "\n");
 996                         }
 997
 998                 if (status != V_OCSP_CERTSTATUS_REVOKED)
 999                         continue;
1000
1001                 if (reason != -1)
1002                         BIO_printf(out, "\tReason: %s\n",
1003                                 OCSP_crl_reason_str(reason));
1004
1005                 BIO_puts(out, "\tRevocation Time: ");
1006                 ASN1_GENERALIZEDTIME_print(out, rev);
1007                 BIO_puts(out, "\n");
1008                 }
1009
1010         return 1;
1011         }
1012
1013
1014 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
1015                         X509 *ca, X509 *rcert, EVP_PKEY *rkey,
1016                         STACK_OF(X509) *rother, unsigned long flags,
1017                         int nmin, int ndays)
1018         {
1019         ASN1_TIME *thisupd = NULL, *nextupd = NULL;
1020         OCSP_CERTID *cid, *ca_id = NULL;
1021         OCSP_BASICRESP *bs = NULL;
1022         int i, id_count, ret = 1;
1023
1024         id_count = OCSP_request_onereq_count(req);
1025
1026         if (id_count <= 0)
1027                 {
1028                 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
1029                 goto end;
1030                 }
1031
1032         ca_id = OCSP_cert_to_id(EVP_sha1(), NULL, ca);
1033
1034         bs = OCSP_BASICRESP_new();
1035         thisupd = X509_gmtime_adj(NULL, 0);
1036         if (ndays != -1)
1037                 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 );
1038
1039         /* Examine each certificate id in the request */
1040         for (i = 0; i < id_count; i++)
1041                 {
1042                 OCSP_ONEREQ *one;
1043                 ASN1_INTEGER *serial;
1044                 char **inf;
1045                 one = OCSP_request_onereq_get0(req, i);
1046                 cid = OCSP_onereq_get0_id(one);
1047                 /* Is this request about our CA? */
1048                 if (OCSP_id_issuer_cmp(ca_id, cid))
1049                         {
1050                         OCSP_basic_add1_status(bs, cid,
1051                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1052                                                 0, NULL,
1053                                                 thisupd, nextupd);
1054                         continue;
1055                         }
1056                 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
1057                 inf = lookup_serial(db, serial);
1058                 if (!inf)
1059                         OCSP_basic_add1_status(bs, cid,
1060                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1061                                                 0, NULL,
1062                                                 thisupd, nextupd);
1063                 else if (inf[DB_type][0] == DB_TYPE_VAL)
1064                         OCSP_basic_add1_status(bs, cid,
1065                                                 V_OCSP_CERTSTATUS_GOOD,
1066                                                 0, NULL,
1067                                                 thisupd, nextupd);
1068                 else if (inf[DB_type][0] == DB_TYPE_REV)
1069                         {
1070                         ASN1_OBJECT *inst = NULL;
1071                         ASN1_TIME *revtm = NULL;
1072                         ASN1_GENERALIZEDTIME *invtm = NULL;
1073                         OCSP_SINGLERESP *single;
1074                         int reason = -1;
1075                         unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]);
1076                         single = OCSP_basic_add1_status(bs, cid,
1077                                                 V_OCSP_CERTSTATUS_REVOKED,
1078                                                 reason, revtm,
1079                                                 thisupd, nextupd);
1080                         if (invtm)
1081                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, invtm, 0, 0);
1082                         else if (inst)
1083                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_hold_instruction_code, inst, 0, 0);
1084                         ASN1_OBJECT_free(inst);
1085                         ASN1_TIME_free(revtm);
1086                         ASN1_GENERALIZEDTIME_free(invtm);
1087                         }
1088                 }
1089
1090         OCSP_copy_nonce(bs, req);
1091
1092         OCSP_basic_sign(bs, rcert, rkey, NULL, rother, flags);
1093
1094         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);
1095
1096         end:
1097         ASN1_TIME_free(thisupd);
1098         ASN1_TIME_free(nextupd);
1099         OCSP_CERTID_free(ca_id);
1100         OCSP_BASICRESP_free(bs);
1101         return ret;
1102
1103         }
1104
1105 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
1106         {
1107         int i;
1108         BIGNUM *bn = NULL;
1109         char *itmp, *row[DB_NUMBER],**rrow;
1110         for (i = 0; i < DB_NUMBER; i++) row[i] = NULL;
1111         bn = ASN1_INTEGER_to_BN(ser,NULL);
1112         OPENSSL_assert(bn); /* FIXME: should report an error at this point and abort */
1113         if (BN_is_zero(bn))
1114                 itmp = BUF_strdup("00");
1115         else
1116                 itmp = BN_bn2hex(bn);
1117         row[DB_serial] = itmp;
1118         BN_free(bn);
1119         rrow=TXT_DB_get_by_index(db->db,DB_serial,row);
1120         OPENSSL_free(itmp);
1121         return rrow;
1122         }
1123
1124 /* Quick and dirty OCSP server: read in and parse input request */
1125
1126 static BIO *init_responder(char *port)
1127         {
1128         BIO *acbio = NULL, *bufbio = NULL;
1129         bufbio = BIO_new(BIO_f_buffer());
1130         if (!bufbio)
1131                 goto err;
1132 #ifndef OPENSSL_NO_SOCK
1133         acbio = BIO_new_accept(port);
1134 #else
1135         BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n");
1136 #endif
1137         if (!acbio)
1138                 goto err;
1139         BIO_set_accept_bios(acbio, bufbio);
1140         bufbio = NULL;
1141
1142         if (BIO_do_accept(acbio) <= 0)
1143                 {
1144                         BIO_printf(bio_err, "Error setting up accept BIO\n");
1145                         ERR_print_errors(bio_err);
1146                         goto err;
1147                 }
1148
1149         return acbio;
1150
1151         err:
1152         BIO_free_all(acbio);
1153         BIO_free(bufbio);
1154         return NULL;
1155         }
1156
1157 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, char *port)
1158         {
1159         int have_post = 0, len;
1160         OCSP_REQUEST *req = NULL;
1161         char inbuf[1024];
1162         BIO *cbio = NULL;
1163
1164         if (BIO_do_accept(acbio) <= 0)
1165                 {
1166                         BIO_printf(bio_err, "Error accepting connection\n");
1167                         ERR_print_errors(bio_err);
1168                         return 0;
1169                 }
1170
1171         cbio = BIO_pop(acbio);
1172         *pcbio = cbio;
1173
1174         for(;;)
1175                 {
1176                 len = BIO_gets(cbio, inbuf, sizeof inbuf);
1177                 if (len <= 0)
1178                         return 1;
1179                 /* Look for "POST" signalling start of query */
1180                 if (!have_post)
1181                         {
1182                         if(strncmp(inbuf, "POST", 4))
1183                                 {
1184                                 BIO_printf(bio_err, "Invalid request\n");
1185                                 return 1;
1186                                 }
1187                         have_post = 1;
1188                         }
1189                 /* Look for end of headers */
1190                 if ((inbuf[0] == '\r') || (inbuf[0] == '\n'))
1191                         break;
1192                 }
1193
1194         /* Try to read OCSP request */
1195
1196         req = d2i_OCSP_REQUEST_bio(cbio, NULL);
1197
1198         if (!req)
1199                 {
1200                 BIO_printf(bio_err, "Error parsing OCSP request\n");
1201                 ERR_print_errors(bio_err);
1202                 }
1203
1204         *preq = req;
1205
1206         return 1;
1207
1208         }
1209
1210 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
1211         {
1212         char http_resp[] =
1213                 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n"
1214                 "Content-Length: %d\r\n\r\n";
1215         if (!cbio)
1216                 return 0;
1217         BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
1218         i2d_OCSP_RESPONSE_bio(cbio, resp);
1219         (void)BIO_flush(cbio);
1220         return 1;
1221         }
1222
1223 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, char *path,
1224                                 OCSP_REQUEST *req, int req_timeout)
1225         {
1226         int fd;
1227         int rv;
1228         OCSP_REQ_CTX *ctx = NULL;
1229         OCSP_RESPONSE *rsp = NULL;
1230         fd_set confds;
1231         struct timeval tv;
1232
1233         if (req_timeout != -1)
1234                 BIO_set_nbio(cbio, 1);
1235
1236         rv = BIO_do_connect(cbio);
1237
1238         if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio)))
1239                 {
1240                 BIO_puts(err, "Error connecting BIO\n");
1241                 return NULL;
1242                 }
1243
1244         if (req_timeout == -1)
1245                 return OCSP_sendreq_bio(cbio, path, req);
1246
1247         if (BIO_get_fd(cbio, &fd) <= 0)
1248                 {
1249                 BIO_puts(err, "Can't get connection fd\n");
1250                 goto err;
1251                 }
1252
1253         if (rv <= 0)
1254                 {
1255                 FD_ZERO(&confds);
1256                 openssl_fdset(fd, &confds);
1257                 tv.tv_usec = 0;
1258                 tv.tv_sec = req_timeout;
1259                 rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1260                 if (rv == 0)
1261                         {
1262                         BIO_puts(err, "Timeout on connect\n");
1263                         return NULL;
1264                         }
1265                 }
1266
1267
1268         ctx = OCSP_sendreq_new(cbio, path, req, -1);
1269         if (!ctx)
1270                 return NULL;
1271
1272         for (;;)
1273                 {
1274                 rv = OCSP_sendreq_nbio(&rsp, ctx);
1275                 if (rv != -1)
1276                         break;
1277                 FD_ZERO(&confds);
1278                 openssl_fdset(fd, &confds);
1279                 tv.tv_usec = 0;
1280                 tv.tv_sec = req_timeout;
1281                 if (BIO_should_read(cbio))
1282                         rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv);
1283                 else if (BIO_should_write(cbio))
1284                         rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1285                 else
1286                         {
1287                         BIO_puts(err, "Unexpected retry condition\n");
1288                         goto err;
1289                         }
1290                 if (rv == 0)
1291                         {
1292                         BIO_puts(err, "Timeout on request\n");
1293                         break;
1294                         }
1295                 if (rv == -1)
1296                         {
1297                         BIO_puts(err, "Select error\n");
1298                         break;
1299                         }
1300
1301                 }
1302         err:
1303         if (ctx)
1304                 OCSP_REQ_CTX_free(ctx);
1305
1306         return rsp;
1307         }
1308
1309 OCSP_RESPONSE *process_responder(BIO *err, OCSP_REQUEST *req,
1310                         char *host, char *path, char *port, int use_ssl,
1311                         int req_timeout)
1312         {
1313         BIO *cbio = NULL;
1314         SSL_CTX *ctx = NULL;
1315         OCSP_RESPONSE *resp = NULL;
1316         cbio = BIO_new_connect(host);
1317         if (!cbio)
1318                 {
1319                 BIO_printf(err, "Error creating connect BIO\n");
1320                 goto end;
1321                 }
1322         if (port) BIO_set_conn_port(cbio, port);
1323         if (use_ssl == 1)
1324                 {
1325                 BIO *sbio;
1326 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
1327                 ctx = SSL_CTX_new(SSLv23_client_method());
1328 #elif !defined(OPENSSL_NO_SSL3)
1329                 ctx = SSL_CTX_new(SSLv3_client_method());
1330 #elif !defined(OPENSSL_NO_SSL2)
1331                 ctx = SSL_CTX_new(SSLv2_client_method());
1332 #else
1333                 BIO_printf(err, "SSL is disabled\n");
1334                         goto end;
1335 #endif
1336                 if (ctx == NULL)
1337                         {
1338                         BIO_printf(err, "Error creating SSL context.\n");
1339                         goto end;
1340                         }
1341                 SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
1342                 sbio = BIO_new_ssl(ctx, 1);
1343                 cbio = BIO_push(sbio, cbio);
1344                 }
1345         resp = query_responder(err, cbio, path, req, req_timeout);
1346         if (!resp)
1347                 BIO_printf(bio_err, "Error querying OCSP responsder\n");
1348         end:
1349         if (ctx)
1350                 SSL_CTX_free(ctx);
1351         if (cbio)
1352                 BIO_free_all(cbio);
1353         return resp;
1354         }
1355
1356 #endif