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