Fix free errors in ocsp utility.
[openssl.git] / apps / ocsp.c
1 /* ocsp.c */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) 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 #ifdef OPENSSL_SYS_VMS
61 #define _XOPEN_SOURCE_EXTENDED  /* So fd_set and friends get properly defined
62                                    on OpenVMS */
63 #endif
64
65 #define USE_SOCKETS
66
67 #include <stdio.h>
68 #include <stdlib.h>
69 #include <string.h>
70 #include <time.h>
71 #include "apps.h" /* needs to be included before the openssl headers! */
72 #include <openssl/e_os2.h>
73 #include <openssl/crypto.h>
74 #include <openssl/err.h>
75 #include <openssl/ssl.h>
76 #include <openssl/evp.h>
77 #include <openssl/bn.h>
78 #include <openssl/x509v3.h>
79
80 #if defined(NETWARE_CLIB)
81 #  ifdef NETWARE_BSDSOCK
82 #    include <sys/socket.h>
83 #    include <sys/bsdskt.h>
84 #  else
85 #    include <novsock2.h>
86 #  endif
87 #elif defined(NETWARE_LIBC)
88 #  ifdef NETWARE_BSDSOCK
89 #    include <sys/select.h>
90 #  else
91 #    include <novsock2.h>
92 #  endif
93 #endif
94   
95 /* Maximum leeway in validity period: default 5 minutes */
96 #define MAX_VALIDITY_PERIOD     (5 * 60)
97
98 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md, X509 *issuer,
99                                 STACK_OF(OCSP_CERTID) *ids);
100 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial, const EVP_MD * cert_id_md, X509 *issuer,
101                                 STACK_OF(OCSP_CERTID) *ids);
102 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
103                               STACK_OF(OPENSSL_STRING) *names,
104                               STACK_OF(OCSP_CERTID) *ids, long nsec,
105                               long maxage);
106
107 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
108                         X509 *ca, X509 *rcert, EVP_PKEY *rkey, const EVP_MD *md,
109                         STACK_OF(X509) *rother, unsigned long flags,
110                         int nmin, int ndays, int badsig);
111
112 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser);
113 static BIO *init_responder(const char *port);
114 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio, const char *port);
115 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp);
116 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, const char *path,
117                                       const STACK_OF(CONF_VALUE) *headers,
118                                       OCSP_REQUEST *req, int req_timeout);
119
120 #undef PROG
121 #define PROG ocsp_main
122
123 int MAIN(int, char **);
124
125 int MAIN(int argc, char **argv)
126         {
127         ENGINE *e = NULL;
128         char **args;
129         char *host = NULL, *port = NULL, *path = "/";
130         char *thost = NULL, *tport = NULL, *tpath = NULL;
131         char *reqin = NULL, *respin = NULL;
132         char *reqout = NULL, *respout = NULL;
133         char *signfile = NULL, *keyfile = NULL;
134         char *rsignfile = NULL, *rkeyfile = NULL;
135         char *outfile = NULL;
136         int add_nonce = 1, noverify = 0, use_ssl = -1;
137         STACK_OF(CONF_VALUE) *headers = NULL;
138         OCSP_REQUEST *req = NULL;
139         OCSP_RESPONSE *resp = NULL;
140         OCSP_BASICRESP *bs = NULL;
141         X509 *issuer = NULL, *cert = NULL;
142         X509 *signer = NULL, *rsigner = NULL;
143         EVP_PKEY *key = NULL, *rkey = NULL;
144         BIO *acbio = NULL, *cbio = NULL;
145         BIO *derbio = NULL;
146         BIO *out = NULL;
147         int req_timeout = -1;
148         int req_text = 0, resp_text = 0;
149         long nsec = MAX_VALIDITY_PERIOD, maxage = -1;
150         char *CAfile = NULL, *CApath = NULL;
151         X509_STORE *store = NULL;
152         X509_VERIFY_PARAM *vpm = NULL;
153         STACK_OF(X509) *sign_other = NULL, *verify_other = NULL, *rother = NULL;
154         char *sign_certfile = NULL, *verify_certfile = NULL, *rcertfile = NULL;
155         unsigned long sign_flags = 0, verify_flags = 0, rflags = 0;
156         int ret = 1;
157         int accept_count = -1;
158         int badarg = 0;
159         int badsig = 0;
160         int i;
161         int ignore_err = 0;
162         STACK_OF(OPENSSL_STRING) *reqnames = NULL;
163         STACK_OF(OCSP_CERTID) *ids = NULL;
164
165         X509 *rca_cert = NULL;
166         char *ridx_filename = NULL;
167         char *rca_filename = NULL;
168         CA_DB *rdb = NULL;
169         int nmin = 0, ndays = -1;
170         const EVP_MD *cert_id_md = NULL, *rsign_md = NULL;
171
172         if (bio_err == NULL) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
173
174         if (!load_config(bio_err, NULL))
175                 goto end;
176         SSL_load_error_strings();
177         OpenSSL_add_ssl_algorithms();
178         args = argv + 1;
179         reqnames = sk_OPENSSL_STRING_new_null();
180         ids = sk_OCSP_CERTID_new_null();
181         while (!badarg && *args && *args[0] == '-')
182                 {
183                 if (!strcmp(*args, "-out"))
184                         {
185                         if (args[1])
186                                 {
187                                 args++;
188                                 outfile = *args;
189                                 }
190                         else badarg = 1;
191                         }
192                 else if (!strcmp(*args, "-timeout"))
193                         {
194                         if (args[1])
195                                 {
196                                 args++;
197                                 req_timeout = atol(*args);
198                                 if (req_timeout < 0)
199                                         {
200                                         BIO_printf(bio_err,
201                                                 "Illegal timeout value %s\n",
202                                                 *args);
203                                         badarg = 1;
204                                         }
205                                 }
206                         else badarg = 1;
207                         }
208                 else if (!strcmp(*args, "-url"))
209                         {
210                         if (thost)
211                                 OPENSSL_free(thost);
212                         if (tport)
213                                 OPENSSL_free(tport);
214                         if (tpath)
215                                 OPENSSL_free(tpath);
216                         if (args[1])
217                                 {
218                                 args++;
219                                 if (!OCSP_parse_url(*args, &host, &port, &path, &use_ssl))
220                                         {
221                                         BIO_printf(bio_err, "Error parsing URL\n");
222                                         badarg = 1;
223                                         }
224                                 thost = host;
225                                 tport = port;
226                                 tpath = path;
227                                 }
228                         else badarg = 1;
229                         }
230                 else if (!strcmp(*args, "-host"))
231                         {
232                         if (args[1])
233                                 {
234                                 args++;
235                                 host = *args;
236                                 }
237                         else badarg = 1;
238                         }
239                 else if (!strcmp(*args, "-port"))
240                         {
241                         if (args[1])
242                                 {
243                                 args++;
244                                 port = *args;
245                                 }
246                         else badarg = 1;
247                         }
248                 else if (!strcmp(*args, "-header"))
249                         {
250                         if (args[1] && args[2])
251                                 {
252                                 if (!X509V3_add_value(args[1], args[2], &headers))
253                                         goto end;
254                                 args += 2;
255                                 }
256                         else badarg = 1;
257                         }
258                 else if (!strcmp(*args, "-ignore_err"))
259                         ignore_err = 1;
260                 else if (!strcmp(*args, "-noverify"))
261                         noverify = 1;
262                 else if (!strcmp(*args, "-nonce"))
263                         add_nonce = 2;
264                 else if (!strcmp(*args, "-no_nonce"))
265                         add_nonce = 0;
266                 else if (!strcmp(*args, "-resp_no_certs"))
267                         rflags |= OCSP_NOCERTS;
268                 else if (!strcmp(*args, "-resp_key_id"))
269                         rflags |= OCSP_RESPID_KEY;
270                 else if (!strcmp(*args, "-no_certs"))
271                         sign_flags |= OCSP_NOCERTS;
272                 else if (!strcmp(*args, "-no_signature_verify"))
273                         verify_flags |= OCSP_NOSIGS;
274                 else if (!strcmp(*args, "-no_cert_verify"))
275                         verify_flags |= OCSP_NOVERIFY;
276                 else if (!strcmp(*args, "-no_chain"))
277                         verify_flags |= OCSP_NOCHAIN;
278                 else if (!strcmp(*args, "-no_cert_checks"))
279                         verify_flags |= OCSP_NOCHECKS;
280                 else if (!strcmp(*args, "-no_explicit"))
281                         verify_flags |= OCSP_NOEXPLICIT;
282                 else if (!strcmp(*args, "-trust_other"))
283                         verify_flags |= OCSP_TRUSTOTHER;
284                 else if (!strcmp(*args, "-no_intern"))
285                         verify_flags |= OCSP_NOINTERN;
286                 else if (!strcmp(*args, "-badsig"))
287                         badsig = 1;
288                 else if (!strcmp(*args, "-text"))
289                         {
290                         req_text = 1;
291                         resp_text = 1;
292                         }
293                 else if (!strcmp(*args, "-req_text"))
294                         req_text = 1;
295                 else if (!strcmp(*args, "-resp_text"))
296                         resp_text = 1;
297                 else if (!strcmp(*args, "-reqin"))
298                         {
299                         if (args[1])
300                                 {
301                                 args++;
302                                 reqin = *args;
303                                 }
304                         else badarg = 1;
305                         }
306                 else if (!strcmp(*args, "-respin"))
307                         {
308                         if (args[1])
309                                 {
310                                 args++;
311                                 respin = *args;
312                                 }
313                         else badarg = 1;
314                         }
315                 else if (!strcmp(*args, "-signer"))
316                         {
317                         if (args[1])
318                                 {
319                                 args++;
320                                 signfile = *args;
321                                 }
322                         else badarg = 1;
323                         }
324                 else if (!strcmp (*args, "-VAfile"))
325                         {
326                         if (args[1])
327                                 {
328                                 args++;
329                                 verify_certfile = *args;
330                                 verify_flags |= OCSP_TRUSTOTHER;
331                                 }
332                         else badarg = 1;
333                         }
334                 else if (!strcmp(*args, "-sign_other"))
335                         {
336                         if (args[1])
337                                 {
338                                 args++;
339                                 sign_certfile = *args;
340                                 }
341                         else badarg = 1;
342                         }
343                 else if (!strcmp(*args, "-verify_other"))
344                         {
345                         if (args[1])
346                                 {
347                                 args++;
348                                 verify_certfile = *args;
349                                 }
350                         else badarg = 1;
351                         }
352                 else if (!strcmp (*args, "-CAfile"))
353                         {
354                         if (args[1])
355                                 {
356                                 args++;
357                                 CAfile = *args;
358                                 }
359                         else badarg = 1;
360                         }
361                 else if (!strcmp (*args, "-CApath"))
362                         {
363                         if (args[1])
364                                 {
365                                 args++;
366                                 CApath = *args;
367                                 }
368                         else badarg = 1;
369                         }
370                 else if (args_verify(&args, NULL, &badarg, bio_err, &vpm))
371                         {
372                         if (badarg)
373                                 goto end;
374                         continue;
375                         }
376                 else if (!strcmp (*args, "-validity_period"))
377                         {
378                         if (args[1])
379                                 {
380                                 args++;
381                                 nsec = atol(*args);
382                                 if (nsec < 0)
383                                         {
384                                         BIO_printf(bio_err,
385                                                 "Illegal validity period %s\n",
386                                                 *args);
387                                         badarg = 1;
388                                         }
389                                 }
390                         else badarg = 1;
391                         }
392                 else if (!strcmp (*args, "-status_age"))
393                         {
394                         if (args[1])
395                                 {
396                                 args++;
397                                 maxage = atol(*args);
398                                 if (maxage < 0)
399                                         {
400                                         BIO_printf(bio_err,
401                                                 "Illegal validity age %s\n",
402                                                 *args);
403                                         badarg = 1;
404                                         }
405                                 }
406                         else badarg = 1;
407                         }
408                  else if (!strcmp(*args, "-signkey"))
409                         {
410                         if (args[1])
411                                 {
412                                 args++;
413                                 keyfile = *args;
414                                 }
415                         else badarg = 1;
416                         }
417                 else if (!strcmp(*args, "-reqout"))
418                         {
419                         if (args[1])
420                                 {
421                                 args++;
422                                 reqout = *args;
423                                 }
424                         else badarg = 1;
425                         }
426                 else if (!strcmp(*args, "-respout"))
427                         {
428                         if (args[1])
429                                 {
430                                 args++;
431                                 respout = *args;
432                                 }
433                         else badarg = 1;
434                         }
435                  else if (!strcmp(*args, "-path"))
436                         {
437                         if (args[1])
438                                 {
439                                 args++;
440                                 path = *args;
441                                 }
442                         else badarg = 1;
443                         }
444                 else if (!strcmp(*args, "-issuer"))
445                         {
446                         if (args[1])
447                                 {
448                                 args++;
449                                 X509_free(issuer);
450                                 issuer = load_cert(bio_err, *args, FORMAT_PEM,
451                                         NULL, e, "issuer certificate");
452                                 if(!issuer) goto end;
453                                 }
454                         else badarg = 1;
455                         }
456                 else if (!strcmp (*args, "-cert"))
457                         {
458                         if (args[1])
459                                 {
460                                 args++;
461                                 X509_free(cert);
462                                 cert = load_cert(bio_err, *args, FORMAT_PEM,
463                                         NULL, e, "certificate");
464                                 if(!cert) goto end;
465                                 if (!cert_id_md) cert_id_md = EVP_sha1();
466                                 if(!add_ocsp_cert(&req, cert, cert_id_md, issuer, ids))
467                                         goto end;
468                                 if(!sk_OPENSSL_STRING_push(reqnames, *args))
469                                         goto end;
470                                 }
471                         else badarg = 1;
472                         }
473                 else if (!strcmp(*args, "-serial"))
474                         {
475                         if (args[1])
476                                 {
477                                 args++;
478                                 if (!cert_id_md) cert_id_md = EVP_sha1();
479                                 if(!add_ocsp_serial(&req, *args, cert_id_md, issuer, ids))
480                                         goto end;
481                                 if(!sk_OPENSSL_STRING_push(reqnames, *args))
482                                         goto end;
483                                 }
484                         else badarg = 1;
485                         }
486                 else if (!strcmp(*args, "-index"))
487                         {
488                         if (args[1])
489                                 {
490                                 args++;
491                                 ridx_filename = *args;
492                                 }
493                         else badarg = 1;
494                         }
495                 else if (!strcmp(*args, "-CA"))
496                         {
497                         if (args[1])
498                                 {
499                                 args++;
500                                 rca_filename = *args;
501                                 }
502                         else badarg = 1;
503                         }
504                 else if (!strcmp (*args, "-nmin"))
505                         {
506                         if (args[1])
507                                 {
508                                 args++;
509                                 nmin = atol(*args);
510                                 if (nmin < 0)
511                                         {
512                                         BIO_printf(bio_err,
513                                                 "Illegal update period %s\n",
514                                                 *args);
515                                         badarg = 1;
516                                         }
517                                 }
518                                 if (ndays == -1)
519                                         ndays = 0;
520                         else badarg = 1;
521                         }
522                 else if (!strcmp (*args, "-nrequest"))
523                         {
524                         if (args[1])
525                                 {
526                                 args++;
527                                 accept_count = atol(*args);
528                                 if (accept_count < 0)
529                                         {
530                                         BIO_printf(bio_err,
531                                                 "Illegal accept count %s\n",
532                                                 *args);
533                                         badarg = 1;
534                                         }
535                                 }
536                         else badarg = 1;
537                         }
538                 else if (!strcmp (*args, "-ndays"))
539                         {
540                         if (args[1])
541                                 {
542                                 args++;
543                                 ndays = atol(*args);
544                                 if (ndays < 0)
545                                         {
546                                         BIO_printf(bio_err,
547                                                 "Illegal update period %s\n",
548                                                 *args);
549                                         badarg = 1;
550                                         }
551                                 }
552                         else badarg = 1;
553                         }
554                 else if (!strcmp(*args, "-rsigner"))
555                         {
556                         if (args[1])
557                                 {
558                                 args++;
559                                 rsignfile = *args;
560                                 }
561                         else badarg = 1;
562                         }
563                 else if (!strcmp(*args, "-rkey"))
564                         {
565                         if (args[1])
566                                 {
567                                 args++;
568                                 rkeyfile = *args;
569                                 }
570                         else badarg = 1;
571                         }
572                 else if (!strcmp(*args, "-rother"))
573                         {
574                         if (args[1])
575                                 {
576                                 args++;
577                                 rcertfile = *args;
578                                 }
579                         else badarg = 1;
580                         }
581                 else if (!strcmp(*args, "-rmd"))
582                         {
583                         if (args[1])
584                                 {
585                                 args++;
586                                 rsign_md = EVP_get_digestbyname(*args);
587                                 if (!rsign_md)
588                                         badarg = 1;
589                                 }
590                         else badarg = 1;
591                         }
592                 else if ((cert_id_md = EVP_get_digestbyname((*args)+1))==NULL)
593                         {
594                         badarg = 1;
595                         }
596                 args++;
597                 }
598
599         /* Have we anything to do? */
600         if (!req && !reqin && !respin && !(port && ridx_filename)) badarg = 1;
601
602         if (badarg)
603                 {
604                 BIO_printf (bio_err, "OCSP utility\n");
605                 BIO_printf (bio_err, "Usage ocsp [options]\n");
606                 BIO_printf (bio_err, "where options are\n");
607                 BIO_printf (bio_err, "-out file          output filename\n");
608                 BIO_printf (bio_err, "-issuer file       issuer certificate\n");
609                 BIO_printf (bio_err, "-cert file         certificate to check\n");
610                 BIO_printf (bio_err, "-serial n          serial number to check\n");
611                 BIO_printf (bio_err, "-signer file       certificate to sign OCSP request with\n");
612                 BIO_printf (bio_err, "-signkey file      private key to sign OCSP request with\n");
613                 BIO_printf (bio_err, "-sign_other file   additional certificates to include in signed request\n");
614                 BIO_printf (bio_err, "-no_certs          don't include any certificates in signed request\n");
615                 BIO_printf (bio_err, "-req_text          print text form of request\n");
616                 BIO_printf (bio_err, "-resp_text         print text form of response\n");
617                 BIO_printf (bio_err, "-text              print text form of request and response\n");
618                 BIO_printf (bio_err, "-reqout file       write DER encoded OCSP request to \"file\"\n");
619                 BIO_printf (bio_err, "-respout file      write DER encoded OCSP reponse to \"file\"\n");
620                 BIO_printf (bio_err, "-reqin file        read DER encoded OCSP request from \"file\"\n");
621                 BIO_printf (bio_err, "-respin file       read DER encoded OCSP reponse from \"file\"\n");
622                 BIO_printf (bio_err, "-nonce             add OCSP nonce to request\n");
623                 BIO_printf (bio_err, "-no_nonce          don't add OCSP nonce to request\n");
624                 BIO_printf (bio_err, "-url URL           OCSP responder URL\n");
625                 BIO_printf (bio_err, "-host host:n       send OCSP request to host on port n\n");
626                 BIO_printf (bio_err, "-path              path to use in OCSP request\n");
627                 BIO_printf (bio_err, "-CApath dir        trusted certificates directory\n");
628                 BIO_printf (bio_err, "-CAfile file       trusted certificates file\n");
629                 BIO_printf (bio_err, "-VAfile file       validator certificates file\n");
630                 BIO_printf (bio_err, "-validity_period n maximum validity discrepancy in seconds\n");
631                 BIO_printf (bio_err, "-status_age n      maximum status age in seconds\n");
632                 BIO_printf (bio_err, "-noverify          don't verify response at all\n");
633                 BIO_printf (bio_err, "-verify_other file additional certificates to search for signer\n");
634                 BIO_printf (bio_err, "-trust_other       don't verify additional certificates\n");
635                 BIO_printf (bio_err, "-no_intern         don't search certificates contained in response for signer\n");
636                 BIO_printf (bio_err, "-no_signature_verify don't check signature on response\n");
637                 BIO_printf (bio_err, "-no_cert_verify    don't check signing certificate\n");
638                 BIO_printf (bio_err, "-no_chain          don't chain verify response\n");
639                 BIO_printf (bio_err, "-no_cert_checks    don't do additional checks on signing certificate\n");
640                 BIO_printf (bio_err, "-port num          port to run responder on\n");
641                 BIO_printf (bio_err, "-index file        certificate status index file\n");
642                 BIO_printf (bio_err, "-CA file           CA certificate\n");
643                 BIO_printf (bio_err, "-rsigner file      responder certificate to sign responses with\n");
644                 BIO_printf (bio_err, "-rkey file         responder key to sign responses with\n");
645                 BIO_printf (bio_err, "-rother file       other certificates to include in response\n");
646                 BIO_printf (bio_err, "-resp_no_certs     don't include any certificates in response\n");
647                 BIO_printf (bio_err, "-nmin n            number of minutes before next update\n");
648                 BIO_printf (bio_err, "-ndays n           number of days before next update\n");
649                 BIO_printf (bio_err, "-resp_key_id       identify reponse by signing certificate key ID\n");
650                 BIO_printf (bio_err, "-nrequest n        number of requests to accept (default unlimited)\n");
651                 BIO_printf (bio_err, "-<dgst alg>     use specified digest in the request\n");
652                 goto end;
653                 }
654
655         if(outfile) out = BIO_new_file(outfile, "w");
656         else out = BIO_new_fp(stdout, BIO_NOCLOSE);
657
658         if(!out)
659                 {
660                 BIO_printf(bio_err, "Error opening output file\n");
661                 goto end;
662                 }
663
664         if (!req && (add_nonce != 2)) add_nonce = 0;
665
666         if (!req && reqin)
667                 {
668                 if (!strcmp(reqin, "-"))
669                         derbio = BIO_new_fp(stdin, BIO_NOCLOSE);
670                 else
671                         derbio = BIO_new_file(reqin, "rb");
672                 if (!derbio)
673                         {
674                         BIO_printf(bio_err, "Error Opening OCSP request file\n");
675                         goto end;
676                         }
677                 req = d2i_OCSP_REQUEST_bio(derbio, NULL);
678                 BIO_free(derbio);
679                 if(!req)
680                         {
681                         BIO_printf(bio_err, "Error reading OCSP request\n");
682                         goto end;
683                         }
684                 }
685
686         if (!req && port)
687                 {
688                 acbio = init_responder(port);
689                 if (!acbio)
690                         goto end;
691                 }
692
693         if (rsignfile && !rdb)
694                 {
695                 if (!rkeyfile) rkeyfile = rsignfile;
696                 rsigner = load_cert(bio_err, rsignfile, FORMAT_PEM,
697                         NULL, e, "responder certificate");
698                 if (!rsigner)
699                         {
700                         BIO_printf(bio_err, "Error loading responder certificate\n");
701                         goto end;
702                         }
703                 rca_cert = load_cert(bio_err, rca_filename, FORMAT_PEM,
704                         NULL, e, "CA certificate");
705                 if (rcertfile)
706                         {
707                         rother = load_certs(bio_err, rcertfile, FORMAT_PEM,
708                                 NULL, e, "responder other certificates");
709                         if (!rother) goto end;
710                         }
711                 rkey = load_key(bio_err, rkeyfile, FORMAT_PEM, 0, NULL, NULL,
712                         "responder private key");
713                 if (!rkey)
714                         goto end;
715                 }
716         if(acbio)
717                 BIO_printf(bio_err, "Waiting for OCSP client connections...\n");
718
719         redo_accept:
720
721         if (acbio)
722                 {
723                 if (!do_responder(&req, &cbio, acbio, port))
724                         goto end;
725                 if (!req)
726                         {
727                         resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
728                         send_ocsp_response(cbio, resp);
729                         goto done_resp;
730                         }
731                 }
732
733         if (!req && (signfile || reqout || host || add_nonce || ridx_filename))
734                 {
735                 BIO_printf(bio_err, "Need an OCSP request for this operation!\n");
736                 goto end;
737                 }
738
739         if (req && add_nonce) OCSP_request_add1_nonce(req, NULL, -1);
740
741         if (signfile)
742                 {
743                 if (!keyfile) keyfile = signfile;
744                 signer = load_cert(bio_err, signfile, FORMAT_PEM,
745                         NULL, e, "signer certificate");
746                 if (!signer)
747                         {
748                         BIO_printf(bio_err, "Error loading signer certificate\n");
749                         goto end;
750                         }
751                 if (sign_certfile)
752                         {
753                         sign_other = load_certs(bio_err, sign_certfile, FORMAT_PEM,
754                                 NULL, e, "signer certificates");
755                         if (!sign_other) goto end;
756                         }
757                 key = load_key(bio_err, keyfile, FORMAT_PEM, 0, NULL, NULL,
758                         "signer private key");
759                 if (!key)
760                         goto end;
761
762                 if (!OCSP_request_sign(req, signer, key, NULL, sign_other, sign_flags))
763                         {
764                         BIO_printf(bio_err, "Error signing OCSP request\n");
765                         goto end;
766                         }
767                 }
768
769         if (req_text && req) OCSP_REQUEST_print(out, req, 0);
770
771         if (reqout)
772                 {
773                 if (!strcmp(reqout, "-"))
774                         derbio = BIO_new_fp(stdout, BIO_NOCLOSE);
775                 else
776                         derbio = BIO_new_file(reqout, "wb");
777                 if(!derbio)
778                         {
779                         BIO_printf(bio_err, "Error opening file %s\n", reqout);
780                         goto end;
781                         }
782                 i2d_OCSP_REQUEST_bio(derbio, req);
783                 BIO_free(derbio);
784                 }
785
786         if (ridx_filename && (!rkey || !rsigner || !rca_cert))
787                 {
788                 BIO_printf(bio_err, "Need a responder certificate, key and CA for this operation!\n");
789                 goto end;
790                 }
791
792         if (ridx_filename && !rdb)
793                 {
794                 rdb = load_index(ridx_filename, NULL);
795                 if (!rdb) goto end;
796                 if (!index_index(rdb)) goto end;
797                 }
798
799         if (rdb)
800                 {
801                 i = make_ocsp_response(&resp, req, rdb, rca_cert, rsigner, rkey,rsign_md, rother, rflags, nmin, ndays, badsig);
802                 if (cbio)
803                         send_ocsp_response(cbio, resp);
804                 }
805         else if (host)
806                 {
807 #ifndef OPENSSL_NO_SOCK
808                 resp = process_responder(bio_err, req, host, path,
809                                         port, use_ssl, headers, req_timeout);
810                 if (!resp)
811                         goto end;
812 #else
813                 BIO_printf(bio_err, "Error creating connect BIO - sockets not supported.\n");
814                 goto end;
815 #endif
816                 }
817         else if (respin)
818                 {
819                 if (!strcmp(respin, "-"))
820                         derbio = BIO_new_fp(stdin, BIO_NOCLOSE);
821                 else
822                         derbio = BIO_new_file(respin, "rb");
823                 if (!derbio)
824                         {
825                         BIO_printf(bio_err, "Error Opening OCSP response file\n");
826                         goto end;
827                         }
828                 resp = d2i_OCSP_RESPONSE_bio(derbio, NULL);
829                 BIO_free(derbio);
830                 if(!resp)
831                         {
832                         BIO_printf(bio_err, "Error reading OCSP response\n");
833                         goto end;
834                         }
835         
836                 }
837         else
838                 {
839                 ret = 0;
840                 goto end;
841                 }
842
843         done_resp:
844
845         if (respout)
846                 {
847                 if (!strcmp(respout, "-"))
848                         derbio = BIO_new_fp(stdout, BIO_NOCLOSE);
849                 else
850                         derbio = BIO_new_file(respout, "wb");
851                 if(!derbio)
852                         {
853                         BIO_printf(bio_err, "Error opening file %s\n", respout);
854                         goto end;
855                         }
856                 i2d_OCSP_RESPONSE_bio(derbio, resp);
857                 BIO_free(derbio);
858                 }
859
860         i = OCSP_response_status(resp);
861
862         if (i != OCSP_RESPONSE_STATUS_SUCCESSFUL)
863                 {
864                 BIO_printf(out, "Responder Error: %s (%d)\n",
865                                 OCSP_response_status_str(i), i);
866                 if (ignore_err)
867                         goto redo_accept;
868                 ret = 0;
869                 goto end;
870                 }
871
872         if (resp_text) OCSP_RESPONSE_print(out, resp, 0);
873
874         /* If running as responder don't verify our own response */
875         if (cbio)
876                 {
877                 if (accept_count > 0)
878                         accept_count--;
879                 /* Redo if more connections needed */
880                 if (accept_count)
881                         {
882                         BIO_free_all(cbio);
883                         cbio = NULL;
884                         OCSP_REQUEST_free(req);
885                         req = NULL;
886                         OCSP_RESPONSE_free(resp);
887                         resp = NULL;
888                         goto redo_accept;
889                         }
890                 ret = 0;
891                 goto end;
892                 }
893         else if (ridx_filename)
894                 {
895                 ret = 0;
896                 goto end;
897                 }
898
899         if (!store)
900                 store = setup_verify(bio_err, CAfile, CApath);
901         if (!store)
902                 goto end;
903         if (vpm)
904                 X509_STORE_set1_param(store, vpm);
905         if (verify_certfile)
906                 {
907                 verify_other = load_certs(bio_err, verify_certfile, FORMAT_PEM,
908                         NULL, e, "validator certificate");
909                 if (!verify_other) goto end;
910                 }
911
912         bs = OCSP_response_get1_basic(resp);
913
914         if (!bs)
915                 {
916                 BIO_printf(bio_err, "Error parsing response\n");
917                 goto end;
918                 }
919
920         ret = 0;
921
922         if (!noverify)
923                 {
924                 if (req && ((i = OCSP_check_nonce(req, bs)) <= 0))
925                         {
926                         if (i == -1)
927                                 BIO_printf(bio_err, "WARNING: no nonce in response\n");
928                         else
929                                 {
930                                 BIO_printf(bio_err, "Nonce Verify error\n");
931                                 ret = 1;
932                                 goto end;
933                                 }
934                         }
935
936                 i = OCSP_basic_verify(bs, verify_other, store, verify_flags);
937                 if(i <= 0)
938                         {
939                         BIO_printf(bio_err, "Response Verify Failure\n");
940                         ERR_print_errors(bio_err);
941                         ret = 1;
942                         }
943                 else
944                         BIO_printf(bio_err, "Response verify OK\n");
945
946                 }
947
948         if (!print_ocsp_summary(out, bs, req, reqnames, ids, nsec, maxage))
949                 ret = 1;
950
951 end:
952         ERR_print_errors(bio_err);
953         X509_free(signer);
954         X509_STORE_free(store);
955         if (vpm)
956                 X509_VERIFY_PARAM_free(vpm);
957         EVP_PKEY_free(key);
958         EVP_PKEY_free(rkey);
959         X509_free(issuer);
960         X509_free(cert);
961         X509_free(rsigner);
962         X509_free(rca_cert);
963         free_index(rdb);
964         BIO_free_all(cbio);
965         BIO_free_all(acbio);
966         BIO_free(out);
967         OCSP_REQUEST_free(req);
968         OCSP_RESPONSE_free(resp);
969         OCSP_BASICRESP_free(bs);
970         sk_OPENSSL_STRING_free(reqnames);
971         sk_OCSP_CERTID_free(ids);
972         sk_X509_pop_free(sign_other, X509_free);
973         sk_X509_pop_free(verify_other, X509_free);
974         sk_CONF_VALUE_pop_free(headers, X509V3_conf_free);
975
976         if (thost)
977                 OPENSSL_free(thost);
978         if (tport)
979                 OPENSSL_free(tport);
980         if (tpath)
981                 OPENSSL_free(tpath);
982
983         OPENSSL_EXIT(ret);
984 }
985
986 static int add_ocsp_cert(OCSP_REQUEST **req, X509 *cert, const EVP_MD *cert_id_md,X509 *issuer,
987                                 STACK_OF(OCSP_CERTID) *ids)
988         {
989         OCSP_CERTID *id;
990         if(!issuer)
991                 {
992                 BIO_printf(bio_err, "No issuer certificate specified\n");
993                 return 0;
994                 }
995         if(!*req) *req = OCSP_REQUEST_new();
996         if(!*req) goto err;
997         id = OCSP_cert_to_id(cert_id_md, cert, issuer);
998         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
999         if(!OCSP_request_add0_id(*req, id)) goto err;
1000         return 1;
1001
1002         err:
1003         BIO_printf(bio_err, "Error Creating OCSP request\n");
1004         return 0;
1005         }
1006
1007 static int add_ocsp_serial(OCSP_REQUEST **req, char *serial,const EVP_MD *cert_id_md, X509 *issuer,
1008                                 STACK_OF(OCSP_CERTID) *ids)
1009         {
1010         OCSP_CERTID *id;
1011         X509_NAME *iname;
1012         ASN1_BIT_STRING *ikey;
1013         ASN1_INTEGER *sno;
1014         if(!issuer)
1015                 {
1016                 BIO_printf(bio_err, "No issuer certificate specified\n");
1017                 return 0;
1018                 }
1019         if(!*req) *req = OCSP_REQUEST_new();
1020         if(!*req) goto err;
1021         iname = X509_get_subject_name(issuer);
1022         ikey = X509_get0_pubkey_bitstr(issuer);
1023         sno = s2i_ASN1_INTEGER(NULL, serial);
1024         if(!sno)
1025                 {
1026                 BIO_printf(bio_err, "Error converting serial number %s\n", serial);
1027                 return 0;
1028                 }
1029         id = OCSP_cert_id_new(cert_id_md, iname, ikey, sno);
1030         ASN1_INTEGER_free(sno);
1031         if(!id || !sk_OCSP_CERTID_push(ids, id)) goto err;
1032         if(!OCSP_request_add0_id(*req, id)) goto err;
1033         return 1;
1034
1035         err:
1036         BIO_printf(bio_err, "Error Creating OCSP request\n");
1037         return 0;
1038         }
1039
1040 static int print_ocsp_summary(BIO *out, OCSP_BASICRESP *bs, OCSP_REQUEST *req,
1041                               STACK_OF(OPENSSL_STRING) *names,
1042                               STACK_OF(OCSP_CERTID) *ids, long nsec,
1043                               long maxage)
1044         {
1045         OCSP_CERTID *id;
1046         char *name;
1047         int i;
1048
1049         int status, reason;
1050
1051         ASN1_GENERALIZEDTIME *rev, *thisupd, *nextupd;
1052
1053         if (!bs || !req || !sk_OPENSSL_STRING_num(names) || !sk_OCSP_CERTID_num(ids))
1054                 return 1;
1055
1056         for (i = 0; i < sk_OCSP_CERTID_num(ids); i++)
1057                 {
1058                 id = sk_OCSP_CERTID_value(ids, i);
1059                 name = sk_OPENSSL_STRING_value(names, i);
1060                 BIO_printf(out, "%s: ", name);
1061
1062                 if(!OCSP_resp_find_status(bs, id, &status, &reason,
1063                                         &rev, &thisupd, &nextupd))
1064                         {
1065                         BIO_puts(out, "ERROR: No Status found.\n");
1066                         continue;
1067                         }
1068
1069                 /* Check validity: if invalid write to output BIO so we
1070                  * know which response this refers to.
1071                  */
1072                 if (!OCSP_check_validity(thisupd, nextupd, nsec, maxage))
1073                         {
1074                         BIO_puts(out, "WARNING: Status times invalid.\n");
1075                         ERR_print_errors(out);
1076                         }
1077                 BIO_printf(out, "%s\n", OCSP_cert_status_str(status));
1078
1079                 BIO_puts(out, "\tThis Update: ");
1080                 ASN1_GENERALIZEDTIME_print(out, thisupd);
1081                 BIO_puts(out, "\n");
1082
1083                 if(nextupd)
1084                         {
1085                         BIO_puts(out, "\tNext Update: ");
1086                         ASN1_GENERALIZEDTIME_print(out, nextupd);
1087                         BIO_puts(out, "\n");
1088                         }
1089
1090                 if (status != V_OCSP_CERTSTATUS_REVOKED)
1091                         continue;
1092
1093                 if (reason != -1)
1094                         BIO_printf(out, "\tReason: %s\n",
1095                                 OCSP_crl_reason_str(reason));
1096
1097                 BIO_puts(out, "\tRevocation Time: ");
1098                 ASN1_GENERALIZEDTIME_print(out, rev);
1099                 BIO_puts(out, "\n");
1100                 }
1101
1102         return 1;
1103         }
1104
1105
1106 static int make_ocsp_response(OCSP_RESPONSE **resp, OCSP_REQUEST *req, CA_DB *db,
1107                         X509 *ca, X509 *rcert,
1108                         EVP_PKEY *rkey, const EVP_MD *rmd,
1109                         STACK_OF(X509) *rother, unsigned long flags,
1110                         int nmin, int ndays, int badsig)
1111         {
1112         ASN1_TIME *thisupd = NULL, *nextupd = NULL;
1113         OCSP_CERTID *cid, *ca_id = NULL;
1114         OCSP_BASICRESP *bs = NULL;
1115         int i, id_count, ret = 1;
1116
1117         id_count = OCSP_request_onereq_count(req);
1118
1119         if (id_count <= 0)
1120                 {
1121                 *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_MALFORMEDREQUEST, NULL);
1122                 goto end;
1123                 }
1124
1125
1126         bs = OCSP_BASICRESP_new();
1127         thisupd = X509_gmtime_adj(NULL, 0);
1128         if (ndays != -1)
1129                 nextupd = X509_gmtime_adj(NULL, nmin * 60 + ndays * 3600 * 24 );
1130
1131         /* Examine each certificate id in the request */
1132         for (i = 0; i < id_count; i++)
1133                 {
1134                 OCSP_ONEREQ *one;
1135                 ASN1_INTEGER *serial;
1136                 char **inf;
1137                 ASN1_OBJECT *cert_id_md_oid;
1138                 const EVP_MD *cert_id_md;
1139                 one = OCSP_request_onereq_get0(req, i);
1140                 cid = OCSP_onereq_get0_id(one);
1141
1142                 OCSP_id_get0_info(NULL,&cert_id_md_oid, NULL,NULL, cid);
1143
1144                 cert_id_md = EVP_get_digestbyobj(cert_id_md_oid);       
1145                 if (! cert_id_md) 
1146                         {
1147                         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_INTERNALERROR,
1148                                 NULL);
1149                                 goto end;
1150                         }       
1151                 if (ca_id) OCSP_CERTID_free(ca_id);
1152                 ca_id = OCSP_cert_to_id(cert_id_md, NULL, ca);
1153
1154                 /* Is this request about our CA? */
1155                 if (OCSP_id_issuer_cmp(ca_id, cid))
1156                         {
1157                         OCSP_basic_add1_status(bs, cid,
1158                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1159                                                 0, NULL,
1160                                                 thisupd, nextupd);
1161                         continue;
1162                         }
1163                 OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
1164                 inf = lookup_serial(db, serial);
1165                 if (!inf)
1166                         OCSP_basic_add1_status(bs, cid,
1167                                                 V_OCSP_CERTSTATUS_UNKNOWN,
1168                                                 0, NULL,
1169                                                 thisupd, nextupd);
1170                 else if (inf[DB_type][0] == DB_TYPE_VAL)
1171                         OCSP_basic_add1_status(bs, cid,
1172                                                 V_OCSP_CERTSTATUS_GOOD,
1173                                                 0, NULL,
1174                                                 thisupd, nextupd);
1175                 else if (inf[DB_type][0] == DB_TYPE_REV)
1176                         {
1177                         ASN1_OBJECT *inst = NULL;
1178                         ASN1_TIME *revtm = NULL;
1179                         ASN1_GENERALIZEDTIME *invtm = NULL;
1180                         OCSP_SINGLERESP *single;
1181                         int reason = -1;
1182                         unpack_revinfo(&revtm, &reason, &inst, &invtm, inf[DB_rev_date]);
1183                         single = OCSP_basic_add1_status(bs, cid,
1184                                                 V_OCSP_CERTSTATUS_REVOKED,
1185                                                 reason, revtm,
1186                                                 thisupd, nextupd);
1187                         if (invtm)
1188                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_invalidity_date, invtm, 0, 0);
1189                         else if (inst)
1190                                 OCSP_SINGLERESP_add1_ext_i2d(single, NID_hold_instruction_code, inst, 0, 0);
1191                         ASN1_OBJECT_free(inst);
1192                         ASN1_TIME_free(revtm);
1193                         ASN1_GENERALIZEDTIME_free(invtm);
1194                         }
1195                 }
1196
1197         OCSP_copy_nonce(bs, req);
1198         
1199         OCSP_basic_sign(bs, rcert, rkey, rmd, rother, flags);
1200
1201         if (badsig)
1202                 bs->signature->data[bs->signature->length -1] ^= 0x1;
1203
1204         *resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);
1205
1206         end:
1207         ASN1_TIME_free(thisupd);
1208         ASN1_TIME_free(nextupd);
1209         OCSP_CERTID_free(ca_id);
1210         OCSP_BASICRESP_free(bs);
1211         return ret;
1212
1213         }
1214
1215 static char **lookup_serial(CA_DB *db, ASN1_INTEGER *ser)
1216         {
1217         int i;
1218         BIGNUM *bn = NULL;
1219         char *itmp, *row[DB_NUMBER],**rrow;
1220         for (i = 0; i < DB_NUMBER; i++) row[i] = NULL;
1221         bn = ASN1_INTEGER_to_BN(ser,NULL);
1222         OPENSSL_assert(bn); /* FIXME: should report an error at this point and abort */
1223         if (BN_is_zero(bn))
1224                 itmp = BUF_strdup("00");
1225         else
1226                 itmp = BN_bn2hex(bn);
1227         row[DB_serial] = itmp;
1228         BN_free(bn);
1229         rrow=TXT_DB_get_by_index(db->db,DB_serial,row);
1230         OPENSSL_free(itmp);
1231         return rrow;
1232         }
1233
1234 /* Quick and dirty OCSP server: read in and parse input request */
1235
1236 static BIO *init_responder(const char *port)
1237         {
1238         BIO *acbio = NULL, *bufbio = NULL;
1239         bufbio = BIO_new(BIO_f_buffer());
1240         if (!bufbio) 
1241                 goto err;
1242 #ifndef OPENSSL_NO_SOCK
1243         acbio = BIO_new_accept(port);
1244 #else
1245         BIO_printf(bio_err, "Error setting up accept BIO - sockets not supported.\n");
1246 #endif
1247         if (!acbio)
1248                 goto err;
1249         BIO_set_accept_bios(acbio, bufbio);
1250         bufbio = NULL;
1251
1252         if (BIO_do_accept(acbio) <= 0)
1253                 {
1254                         BIO_printf(bio_err, "Error setting up accept BIO\n");
1255                         ERR_print_errors(bio_err);
1256                         goto err;
1257                 }
1258
1259         return acbio;
1260
1261         err:
1262         BIO_free_all(acbio);
1263         BIO_free(bufbio);
1264         return NULL;
1265         }
1266
1267 static int do_responder(OCSP_REQUEST **preq, BIO **pcbio, BIO *acbio,
1268                         const char *port)
1269         {
1270         int have_post = 0, len;
1271         OCSP_REQUEST *req = NULL;
1272         char inbuf[1024];
1273         BIO *cbio = NULL;
1274
1275         if (BIO_do_accept(acbio) <= 0)
1276                 {
1277                         BIO_printf(bio_err, "Error accepting connection\n");
1278                         ERR_print_errors(bio_err);
1279                         return 0;
1280                 }
1281
1282         cbio = BIO_pop(acbio);
1283         *pcbio = cbio;
1284
1285         for(;;)
1286                 {
1287                 len = BIO_gets(cbio, inbuf, sizeof inbuf);
1288                 if (len <= 0)
1289                         return 1;
1290                 /* Look for "POST" signalling start of query */
1291                 if (!have_post)
1292                         {
1293                         if(strncmp(inbuf, "POST", 4))
1294                                 {
1295                                 BIO_printf(bio_err, "Invalid request\n");
1296                                 return 1;
1297                                 }
1298                         have_post = 1;
1299                         }
1300                 /* Look for end of headers */
1301                 if ((inbuf[0] == '\r') || (inbuf[0] == '\n'))
1302                         break;
1303                 }
1304
1305         /* Try to read OCSP request */
1306
1307         req = d2i_OCSP_REQUEST_bio(cbio, NULL);
1308
1309         if (!req)
1310                 {
1311                 BIO_printf(bio_err, "Error parsing OCSP request\n");
1312                 ERR_print_errors(bio_err);
1313                 }
1314
1315         *preq = req;
1316
1317         return 1;
1318
1319         }
1320
1321 static int send_ocsp_response(BIO *cbio, OCSP_RESPONSE *resp)
1322         {
1323         char http_resp[] = 
1324                 "HTTP/1.0 200 OK\r\nContent-type: application/ocsp-response\r\n"
1325                 "Content-Length: %d\r\n\r\n";
1326         if (!cbio)
1327                 return 0;
1328         BIO_printf(cbio, http_resp, i2d_OCSP_RESPONSE(resp, NULL));
1329         i2d_OCSP_RESPONSE_bio(cbio, resp);
1330         (void)BIO_flush(cbio);
1331         return 1;
1332         }
1333
1334 static OCSP_RESPONSE *query_responder(BIO *err, BIO *cbio, const char *path,
1335                                       const STACK_OF(CONF_VALUE) *headers,
1336                                       OCSP_REQUEST *req, int req_timeout)
1337         {
1338         int fd;
1339         int rv;
1340         int i;
1341         OCSP_REQ_CTX *ctx = NULL;
1342         OCSP_RESPONSE *rsp = NULL;
1343         fd_set confds;
1344         struct timeval tv;
1345
1346         if (req_timeout != -1)
1347                 BIO_set_nbio(cbio, 1);
1348
1349         rv = BIO_do_connect(cbio);
1350
1351         if ((rv <= 0) && ((req_timeout == -1) || !BIO_should_retry(cbio)))
1352                 {
1353                 BIO_puts(err, "Error connecting BIO\n");
1354                 return NULL;
1355                 }
1356
1357         if (BIO_get_fd(cbio, &fd) <= 0)
1358                 {
1359                 BIO_puts(err, "Can't get connection fd\n");
1360                 goto err;
1361                 }
1362
1363         if (req_timeout != -1 && rv <= 0)
1364                 {
1365                 FD_ZERO(&confds);
1366                 openssl_fdset(fd, &confds);
1367                 tv.tv_usec = 0;
1368                 tv.tv_sec = req_timeout;
1369                 rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1370                 if (rv == 0)
1371                         {
1372                         BIO_puts(err, "Timeout on connect\n");
1373                         return NULL;
1374                         }
1375                 }
1376
1377
1378         ctx = OCSP_sendreq_new(cbio, path, NULL, -1);
1379         if (!ctx)
1380                 return NULL;
1381
1382         for (i = 0; i < sk_CONF_VALUE_num(headers); i++)
1383                 {
1384                 CONF_VALUE *hdr = sk_CONF_VALUE_value(headers, i);
1385                 if (!OCSP_REQ_CTX_add1_header(ctx, hdr->name, hdr->value))
1386                         goto err;
1387                 }
1388
1389         if (!OCSP_REQ_CTX_set1_req(ctx, req))
1390                 goto err;
1391         
1392         for (;;)
1393                 {
1394                 rv = OCSP_sendreq_nbio(&rsp, ctx);
1395                 if (rv != -1)
1396                         break;
1397                 if (req_timeout == -1)
1398                         continue;
1399                 FD_ZERO(&confds);
1400                 openssl_fdset(fd, &confds);
1401                 tv.tv_usec = 0;
1402                 tv.tv_sec = req_timeout;
1403                 if (BIO_should_read(cbio))
1404                         rv = select(fd + 1, (void *)&confds, NULL, NULL, &tv);
1405                 else if (BIO_should_write(cbio))
1406                         rv = select(fd + 1, NULL, (void *)&confds, NULL, &tv);
1407                 else
1408                         {
1409                         BIO_puts(err, "Unexpected retry condition\n");
1410                         goto err;
1411                         }
1412                 if (rv == 0)
1413                         {
1414                         BIO_puts(err, "Timeout on request\n");
1415                         break;
1416                         }
1417                 if (rv == -1)
1418                         {
1419                         BIO_puts(err, "Select error\n");
1420                         break;
1421                         }
1422
1423                 }
1424         err:
1425         if (ctx)
1426                 OCSP_REQ_CTX_free(ctx);
1427
1428         return rsp;
1429         }
1430
1431 OCSP_RESPONSE *process_responder(BIO *err, OCSP_REQUEST *req,
1432                                  const char *host, const char *path,
1433                                  const char *port, int use_ssl,
1434                                  const STACK_OF(CONF_VALUE) *headers,
1435                                  int req_timeout)
1436         {
1437         BIO *cbio = NULL;
1438         SSL_CTX *ctx = NULL;
1439         OCSP_RESPONSE *resp = NULL;
1440         cbio = BIO_new_connect(host);
1441         if (!cbio)
1442                 {
1443                 BIO_printf(err, "Error creating connect BIO\n");
1444                 goto end;
1445                 }
1446         if (port) BIO_set_conn_port(cbio, port);
1447         if (use_ssl == 1)
1448                 {
1449                 BIO *sbio;
1450 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
1451                 ctx = SSL_CTX_new(SSLv23_client_method());
1452 #elif !defined(OPENSSL_NO_SSL3)
1453                 ctx = SSL_CTX_new(SSLv3_client_method());
1454 #elif !defined(OPENSSL_NO_SSL2)
1455                 ctx = SSL_CTX_new(SSLv2_client_method());
1456 #else
1457                 BIO_printf(err, "SSL is disabled\n");
1458                         goto end;
1459 #endif
1460                 if (ctx == NULL)
1461                         {
1462                         BIO_printf(err, "Error creating SSL context.\n");
1463                         goto end;
1464                         }
1465                 SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
1466                 sbio = BIO_new_ssl(ctx, 1);
1467                 cbio = BIO_push(sbio, cbio);
1468                 }
1469         resp = query_responder(err, cbio, path, headers, req, req_timeout);
1470         if (!resp)
1471                 BIO_printf(bio_err, "Error querying OCSP responsder\n");
1472         end:
1473         if (cbio)
1474                 BIO_free_all(cbio);
1475         if (ctx)
1476                 SSL_CTX_free(ctx);
1477         return resp;
1478         }
1479
1480 #endif