apps/smime.c

   1 /* smime.c */
   2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
   3  * project 1999.
   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
  59 /* S/MIME utility function */
  60
  61 #include <stdio.h>
  62 #include <string.h>
  63 #include "apps.h"
  64 #include <openssl/crypto.h>
  65 #include <openssl/pem.h>
  66 #include <openssl/err.h>
  67
  68 #undef PROG
  69 #define PROG smime_main
  70 static X509 *load_cert(char *file);
  71 static EVP_PKEY *load_key(char *file, char *pass);
  72 static STACK_OF(X509) *load_certs(char *file);
  73 static X509_STORE *setup_verify(char *CAfile, char *CApath);
  74 static int save_certs(char *signerfile, STACK_OF(X509) *signers);
  75
  76 #define SMIME_OP        0x10
  77 #define SMIME_ENCRYPT   (1 | SMIME_OP)
  78 #define SMIME_DECRYPT   2
  79 #define SMIME_SIGN      (3 | SMIME_OP)
  80 #define SMIME_VERIFY    4
  81 #define SMIME_PK7OUT    5
  82
  83 int MAIN(int, char **);
  84
  85 int MAIN(int argc, char **argv)
  86 {
  87         int operation = 0;
  88         int ret = 0;
  89         char **args;
  90         char *inmode = "r", *outmode = "w";
  91         char *infile = NULL, *outfile = NULL;
  92         char *signerfile = NULL, *recipfile = NULL;
  93         char *certfile = NULL, *keyfile = NULL;
  94         EVP_CIPHER *cipher = NULL;
  95         PKCS7 *p7 = NULL;
  96         X509_STORE *store = NULL;
  97         X509 *cert = NULL, *recip = NULL, *signer = NULL;
  98         EVP_PKEY *key = NULL;
  99         STACK_OF(X509) *encerts = NULL, *other = NULL;
 100         BIO *in = NULL, *out = NULL, *indata = NULL;
 101         int badarg = 0;
 102         int flags = PKCS7_DETACHED;
 103         char *to = NULL, *from = NULL, *subject = NULL;
 104         char *CAfile = NULL, *CApath = NULL;
 105         char *passargin = NULL, *passin = NULL;
 106         char *inrand = NULL;
 107         int need_rand = 0;
 108         args = argv + 1;
 109
 110         ret = 1;
 111
 112         while (!badarg && *args && *args[0] == '-') {
 113                 if (!strcmp (*args, "-encrypt")) operation = SMIME_ENCRYPT;
 114                 else if (!strcmp (*args, "-decrypt")) operation = SMIME_DECRYPT;
 115                 else if (!strcmp (*args, "-sign")) operation = SMIME_SIGN;
 116                 else if (!strcmp (*args, "-verify")) operation = SMIME_VERIFY;
 117                 else if (!strcmp (*args, "-pk7out")) operation = SMIME_PK7OUT;
 118 #ifndef NO_DES
 119                 else if (!strcmp (*args, "-des3"))
 120                                 cipher = EVP_des_ede3_cbc();
 121                 else if (!strcmp (*args, "-des"))
 122                                 cipher = EVP_des_cbc();
 123 #endif
 124 #ifndef NO_RC2
 125                 else if (!strcmp (*args, "-rc2-40"))
 126                                 cipher = EVP_rc2_40_cbc();
 127                 else if (!strcmp (*args, "-rc2-128"))
 128                                 cipher = EVP_rc2_cbc();
 129                 else if (!strcmp (*args, "-rc2-64"))
 130                                 cipher = EVP_rc2_64_cbc();
 131 #endif
 132                 else if (!strcmp (*args, "-text"))
 133                                 flags |= PKCS7_TEXT;
 134                 else if (!strcmp (*args, "-nointern"))
 135                                 flags |= PKCS7_NOINTERN;
 136                 else if (!strcmp (*args, "-noverify"))
 137                                 flags |= PKCS7_NOVERIFY;
 138                 else if (!strcmp (*args, "-nochain"))
 139                                 flags |= PKCS7_NOCHAIN;
 140                 else if (!strcmp (*args, "-nocerts"))
 141                                 flags |= PKCS7_NOCERTS;
 142                 else if (!strcmp (*args, "-noattr"))
 143                                 flags |= PKCS7_NOATTR;
 144                 else if (!strcmp (*args, "-nodetach"))
 145                                 flags &= ~PKCS7_DETACHED;
 146                 else if (!strcmp (*args, "-binary"))
 147                                 flags |= PKCS7_BINARY;
 148                 else if (!strcmp (*args, "-nosigs"))
 149                                 flags |= PKCS7_NOSIGS;
 150                 else if (!strcmp(*args,"-rand")) {
 151                         if (args[1]) {
 152                                 args++;
 153                                 inrand = *args;
 154                         } else badarg = 1;
 155                         need_rand = 1;
 156                 } else if (!strcmp(*args,"-passin")) {
 157                         if (args[1]) {
 158                                 args++;
 159                                 passargin = *args;
 160                         } else badarg = 1;
 161                 } else if (!strcmp (*args, "-to")) {
 162                         if (args[1]) {
 163                                 args++;
 164                                 to = *args;
 165                         } else badarg = 1;
 166                 } else if (!strcmp (*args, "-from")) {
 167                         if (args[1]) {
 168                                 args++;
 169                                 from = *args;
 170                         } else badarg = 1;
 171                 } else if (!strcmp (*args, "-subject")) {
 172                         if (args[1]) {
 173                                 args++;
 174                                 subject = *args;
 175                         } else badarg = 1;
 176                 } else if (!strcmp (*args, "-signer")) {
 177                         if (args[1]) {
 178                                 args++;
 179                                 signerfile = *args;
 180                         } else badarg = 1;
 181                 } else if (!strcmp (*args, "-recip")) {
 182                         if (args[1]) {
 183                                 args++;
 184                                 recipfile = *args;
 185                         } else badarg = 1;
 186                 } else if (!strcmp (*args, "-inkey")) {
 187                         if (args[1]) {
 188                                 args++;
 189                                 keyfile = *args;
 190                         } else badarg = 1;
 191                 } else if (!strcmp (*args, "-certfile")) {
 192                         if (args[1]) {
 193                                 args++;
 194                                 certfile = *args;
 195                         } else badarg = 1;
 196                 } else if (!strcmp (*args, "-CAfile")) {
 197                         if (args[1]) {
 198                                 args++;
 199                                 CAfile = *args;
 200                         } else badarg = 1;
 201                 } else if (!strcmp (*args, "-CApath")) {
 202                         if (args[1]) {
 203                                 args++;
 204                                 CApath = *args;
 205                         } else badarg = 1;
 206                 } else if (!strcmp (*args, "-in")) {
 207                         if (args[1]) {
 208                                 args++;
 209                                 infile = *args;
 210                         } else badarg = 1;
 211                 } else if (!strcmp (*args, "-out")) {
 212                         if (args[1]) {
 213                                 args++;
 214                                 outfile = *args;
 215                         } else badarg = 1;
 216                 } else badarg = 1;
 217                 args++;
 218         }
 219
 220         if(operation == SMIME_SIGN) {
 221                 if(!signerfile) {
 222                         BIO_printf(bio_err, "No signer certificate specified\n");
 223                         badarg = 1;
 224                 }
 225                 need_rand = 1;
 226         } else if(operation == SMIME_DECRYPT) {
 227                 if(!recipfile) {
 228                         BIO_printf(bio_err, "No recipient certificate and key specified\n");
 229                         badarg = 1;
 230                 }
 231         } else if(operation == SMIME_ENCRYPT) {
 232                 if(!*args) {
 233                         BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
 234                         badarg = 1;
 235                 }
 236                 need_rand = 1;
 237         } else if(!operation) badarg = 1;
 238
 239         if (badarg) {
 240                 BIO_printf (bio_err, "Usage smime [options] cert.pem ...\n");
 241                 BIO_printf (bio_err, "where options are\n");
 242                 BIO_printf (bio_err, "-encrypt       encrypt message\n");
 243                 BIO_printf (bio_err, "-decrypt       decrypt encrypted message\n");
 244                 BIO_printf (bio_err, "-sign          sign message\n");
 245                 BIO_printf (bio_err, "-verify        verify signed message\n");
 246                 BIO_printf (bio_err, "-pk7out        output PKCS#7 structure\n");
 247 #ifndef NO_DES
 248                 BIO_printf (bio_err, "-des3          encrypt with triple DES\n");
 249                 BIO_printf (bio_err, "-des           encrypt with DES\n");
 250 #endif
 251 #ifndef NO_RC2
 252                 BIO_printf (bio_err, "-rc2-40        encrypt with RC2-40 (default)\n");
 253                 BIO_printf (bio_err, "-rc2-64        encrypt with RC2-64\n");
 254                 BIO_printf (bio_err, "-rc2-128       encrypt with RC2-128\n");
 255 #endif
 256                 BIO_printf (bio_err, "-nointern      don't search certificates in message for signer\n");
 257                 BIO_printf (bio_err, "-nosigs        don't verify message signature\n");
 258                 BIO_printf (bio_err, "-noverify      don't verify signers certificate\n");
 259                 BIO_printf (bio_err, "-nocerts       don't include signers certificate when signing\n");
 260                 BIO_printf (bio_err, "-nodetach      use opaque signing\n");
 261                 BIO_printf (bio_err, "-noattr        don't include any signed attributes\n");
 262                 BIO_printf (bio_err, "-binary        don't translate message to text\n");
 263                 BIO_printf (bio_err, "-certfile file other certificates file\n");
 264                 BIO_printf (bio_err, "-signer file   signer certificate file\n");
 265                 BIO_printf (bio_err, "-recip  file   recipient certificate file for decryption\n");
 266                 BIO_printf (bio_err, "-in file       input file\n");
 267                 BIO_printf (bio_err, "-inkey file    input private key (if not signer or recipient)\n");
 268                 BIO_printf (bio_err, "-out file      output file\n");
 269                 BIO_printf (bio_err, "-to addr       to address\n");
 270                 BIO_printf (bio_err, "-from ad       from address\n");
 271                 BIO_printf (bio_err, "-subject s     subject\n");
 272                 BIO_printf (bio_err, "-text          include or delete text MIME headers\n");
 273                 BIO_printf (bio_err, "-CApath dir    trusted certificates directory\n");
 274                 BIO_printf (bio_err, "-CAfile file   trusted certificates file\n");
 275                 BIO_printf(bio_err,  "-rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 276                 BIO_printf(bio_err,  "               load the file (or the files in the directory) into\n");
 277                 BIO_printf(bio_err,  "               the random number generator\n");
 278                 BIO_printf (bio_err, "cert.pem       recipient certificate(s) for encryption\n");
 279                 goto end;
 280         }
 281
 282         if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
 283                 BIO_printf(bio_err, "Error getting password\n");
 284                 goto end;
 285         }
 286
 287         if (need_rand) {
 288                 app_RAND_load_file(NULL, bio_err, (inrand != NULL));
 289                 if (inrand != NULL)
 290                         BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 291                                 app_RAND_load_files(inrand));
 292         }
 293
 294         ret = 2;
 295
 296         if(operation != SMIME_SIGN) flags &= ~PKCS7_DETACHED;
 297
 298         if(flags & PKCS7_BINARY) {
 299                 if(operation & SMIME_OP) inmode = "rb";
 300                 else outmode = "rb";
 301         }
 302
 303         if(operation == SMIME_ENCRYPT) {
 304                 if (!cipher) {
 305 #ifndef NO_RC2
 306                         cipher = EVP_rc2_40_cbc();
 307 #else
 308                         BIO_printf(bio_err, "No cipher selected\n");
 309                         goto end;
 310 #endif
 311                 }
 312 #ifdef CRYPTO_MDEBUG
 313                 CRYPTO_push_info("load encryption certificates");
 314 #endif
 315                 encerts = sk_X509_new_null();
 316                 while (*args) {
 317                         if(!(cert = load_cert(*args))) {
 318                                 BIO_printf(bio_err, "Can't read recipient certificate file %s\n", *args);
 319                                 goto end;
 320                         }
 321                         sk_X509_push(encerts, cert);
 322                         cert = NULL;
 323                         args++;
 324                 }
 325 #ifdef CRYPTO_MDEBUG
 326                 CRYPTO_pop_info();
 327 #endif
 328         }
 329
 330         if(signerfile && (operation == SMIME_SIGN)) {
 331 #ifdef CRYPTO_MDEBUG
 332                 CRYPTO_push_info("load signer certificate");
 333 #endif
 334                 if(!(signer = load_cert(signerfile))) {
 335                         BIO_printf(bio_err, "Can't read signer certificate file %s\n", signerfile);
 336                         goto end;
 337                 }
 338 #ifdef CRYPTO_MDEBUG
 339                 CRYPTO_pop_info();
 340 #endif
 341         }
 342
 343         if(certfile) {
 344 #ifdef CRYPTO_MDEBUG
 345                 CRYPTO_push_info("load other certfiles");
 346 #endif
 347                 if(!(other = load_certs(certfile))) {
 348                         BIO_printf(bio_err, "Can't read certificate file %s\n", certfile);
 349                         ERR_print_errors(bio_err);
 350                         goto end;
 351                 }
 352 #ifdef CRYPTO_MDEBUG
 353                 CRYPTO_pop_info();
 354 #endif
 355         }
 356
 357         if(recipfile && (operation == SMIME_DECRYPT)) {
 358 #ifdef CRYPTO_MDEBUG
 359                 CRYPTO_push_info("load recipient certificate");
 360 #endif
 361                 if(!(recip = load_cert(recipfile))) {
 362                         BIO_printf(bio_err, "Can't read recipient certificate file %s\n", recipfile);
 363                         ERR_print_errors(bio_err);
 364                         goto end;
 365                 }
 366 #ifdef CRYPTO_MDEBUG
 367                 CRYPTO_pop_info();
 368 #endif
 369         }
 370
 371         if(operation == SMIME_DECRYPT) {
 372                 if(!keyfile) keyfile = recipfile;
 373         } else if(operation == SMIME_SIGN) {
 374                 if(!keyfile) keyfile = signerfile;
 375         } else keyfile = NULL;
 376
 377         if(keyfile) {
 378 #ifdef CRYPTO_MDEBUG
 379                 CRYPTO_push_info("load keyfile");
 380 #endif
 381                 if(!(key = load_key(keyfile, passin))) {
 382                         BIO_printf(bio_err, "Can't read recipient certificate file %s\n", keyfile);
 383                         ERR_print_errors(bio_err);
 384                         goto end;
 385                 }
 386 #ifdef CRYPTO_MDEBUG
 387                 CRYPTO_pop_info();
 388 #endif
 389         }
 390
 391 #ifdef CRYPTO_MDEBUG
 392         CRYPTO_push_info("open input files");
 393 #endif
 394         if (infile) {
 395                 if (!(in = BIO_new_file(infile, inmode))) {
 396                         BIO_printf (bio_err,
 397                                  "Can't open input file %s\n", infile);
 398                         goto end;
 399                 }
 400         } else in = BIO_new_fp(stdin, BIO_NOCLOSE);
 401 #ifdef CRYPTO_MDEBUG
 402         CRYPTO_pop_info();
 403 #endif
 404
 405 #ifdef CRYPTO_MDEBUG
 406         CRYPTO_push_info("open output files");
 407 #endif
 408         if (outfile) {
 409                 if (!(out = BIO_new_file(outfile, outmode))) {
 410                         BIO_printf (bio_err,
 411                                  "Can't open output file %s\n", outfile);
 412                         goto end;
 413                 }
 414         } else out = BIO_new_fp(stdout, BIO_NOCLOSE);
 415 #ifdef CRYPTO_MDEBUG
 416         CRYPTO_pop_info();
 417 #endif
 418
 419         if(operation == SMIME_VERIFY) {
 420 #ifdef CRYPTO_MDEBUG
 421                 CRYPTO_push_info("setup_verify");
 422 #endif
 423                 if(!(store = setup_verify(CAfile, CApath))) goto end;
 424 #ifdef CRYPTO_MDEBUG
 425                 CRYPTO_pop_info();
 426 #endif
 427         }
 428
 429         ret = 3;
 430
 431         if(operation == SMIME_ENCRYPT) {
 432 #ifdef CRYPTO_MDEBUG
 433                 CRYPTO_push_info("PKCS7_encrypt");
 434 #endif
 435                 p7 = PKCS7_encrypt(encerts, in, cipher, flags);
 436 #ifdef CRYPTO_MDEBUG
 437                 CRYPTO_pop_info();
 438 #endif
 439         } else if(operation == SMIME_SIGN) {
 440 #ifdef CRYPTO_MDEBUG
 441                 CRYPTO_push_info("PKCS7_sign");
 442 #endif
 443                 p7 = PKCS7_sign(signer, key, other, in, flags);
 444                 BIO_reset(in);
 445 #ifdef CRYPTO_MDEBUG
 446                 CRYPTO_pop_info();
 447 #endif
 448         } else {
 449 #ifdef CRYPTO_MDEBUG
 450                 CRYPTO_push_info("SMIME_read_PKCS7");
 451 #endif
 452                 if(!(p7 = SMIME_read_PKCS7(in, &indata))) {
 453                         BIO_printf(bio_err, "Error reading S/MIME message\n");
 454                         goto end;
 455                 }
 456 #ifdef CRYPTO_MDEBUG
 457                 CRYPTO_pop_info();
 458 #endif
 459         }
 460
 461         if(!p7) {
 462                 BIO_printf(bio_err, "Error creating PKCS#7 structure\n");
 463                 goto end;
 464         }
 465
 466         ret = 4;
 467         if(operation == SMIME_DECRYPT) {
 468 #ifdef CRYPTO_MDEBUG
 469                 CRYPTO_push_info("PKCS7_decrypt");
 470 #endif
 471                 if(!PKCS7_decrypt(p7, key, recip, out, flags)) {
 472                         BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n");
 473                         goto end;
 474                 }
 475 #ifdef CRYPTO_MDEBUG
 476                 CRYPTO_pop_info();
 477 #endif
 478         } else if(operation == SMIME_VERIFY) {
 479                 STACK_OF(X509) *signers;
 480 #ifdef CRYPTO_MDEBUG
 481                 CRYPTO_push_info("PKCS7_verify");
 482 #endif
 483                 if(PKCS7_verify(p7, other, store, indata, out, flags)) {
 484                         BIO_printf(bio_err, "Verification Successful\n");
 485                 } else {
 486                         BIO_printf(bio_err, "Verification Failure\n");
 487                         goto end;
 488                 }
 489 #ifdef CRYPTO_MDEBUG
 490                 CRYPTO_pop_info();
 491                 CRYPTO_push_info("PKCS7_get0_signers");
 492 #endif
 493                 signers = PKCS7_get0_signers(p7, other, flags);
 494 #ifdef CRYPTO_MDEBUG
 495                 CRYPTO_pop_info();
 496                 CRYPTO_push_info("save_certs");
 497 #endif
 498                 if(!save_certs(signerfile, signers)) {
 499                         BIO_printf(bio_err, "Error writing signers to %s\n",
 500                                                                 signerfile);
 501                         ret = 5;
 502                         goto end;
 503                 }
 504 #ifdef CRYPTO_MDEBUG
 505                 CRYPTO_pop_info();
 506 #endif
 507                 sk_X509_free(signers);
 508         } else if(operation == SMIME_PK7OUT) {
 509                 PEM_write_bio_PKCS7(out, p7);
 510         } else {
 511                 if(to) BIO_printf(out, "To: %s\n", to);
 512                 if(from) BIO_printf(out, "From: %s\n", from);
 513                 if(subject) BIO_printf(out, "Subject: %s\n", subject);
 514                 SMIME_write_PKCS7(out, p7, in, flags);
 515         }
 516         ret = 0;
 517 end:
 518 #ifdef CRYPTO_MDEBUG
 519         CRYPTO_remove_all_info();
 520 #endif
 521         if (need_rand)
 522                 app_RAND_write_file(NULL, bio_err);
 523         if(ret) ERR_print_errors(bio_err);
 524         sk_X509_pop_free(encerts, X509_free);
 525         sk_X509_pop_free(other, X509_free);
 526         X509_STORE_free(store);
 527         X509_free(cert);
 528         X509_free(recip);
 529         X509_free(signer);
 530         EVP_PKEY_free(key);
 531         PKCS7_free(p7);
 532         BIO_free(in);
 533         BIO_free(indata);
 534         BIO_free(out);
 535         if(passin) Free(passin);
 536         return (ret);
 537 }
 538
 539 static X509 *load_cert(char *file)
 540 {
 541         BIO *in;
 542         X509 *cert;
 543         if(!(in = BIO_new_file(file, "r"))) return NULL;
 544         cert = PEM_read_bio_X509(in, NULL, NULL,NULL);
 545         BIO_free(in);
 546         return cert;
 547 }
 548
 549 static EVP_PKEY *load_key(char *file, char *pass)
 550 {
 551         BIO *in;
 552         EVP_PKEY *key;
 553         if(!(in = BIO_new_file(file, "r"))) return NULL;
 554         key = PEM_read_bio_PrivateKey(in, NULL,NULL,pass);
 555         BIO_free(in);
 556         return key;
 557 }
 558
 559 static STACK_OF(X509) *load_certs(char *file)
 560 {
 561         BIO *in;
 562         int i;
 563         STACK_OF(X509) *othercerts;
 564         STACK_OF(X509_INFO) *allcerts;
 565         X509_INFO *xi;
 566         if(!(in = BIO_new_file(file, "r"))) return NULL;
 567         othercerts = sk_X509_new(NULL);
 568         if(!othercerts) return NULL;
 569         allcerts = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL);
 570         for(i = 0; i < sk_X509_INFO_num(allcerts); i++) {
 571                 xi = sk_X509_INFO_value (allcerts, i);
 572                 if (xi->x509) {
 573                         sk_X509_push(othercerts, xi->x509);
 574                         xi->x509 = NULL;
 575                 }
 576         }
 577         sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
 578         BIO_free(in);
 579         return othercerts;
 580 }
 581
 582 static X509_STORE *setup_verify(char *CAfile, char *CApath)
 583 {
 584         X509_STORE *store;
 585         X509_LOOKUP *lookup;
 586 #ifdef CRYPTO_MDEBUG
 587         CRYPTO_push_info("X509_STORE_new");
 588 #endif
 589         if(!(store = X509_STORE_new())) goto end;
 590 #ifdef CRYPTO_MDEBUG
 591         CRYPTO_pop_info();
 592         CRYPTO_push_info("X509_STORE_add_lookup(...file)");
 593 #endif
 594         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
 595         if (lookup == NULL) goto end;
 596 #ifdef CRYPTO_MDEBUG
 597         CRYPTO_pop_info();
 598         CRYPTO_push_info("X509_LOOKUP_load_file");
 599 #endif
 600         if (CAfile) {
 601                 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
 602                         BIO_printf(bio_err, "Error loading file %s\n", CAfile);
 603                         goto end;
 604                 }
 605         } else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
 606
 607 #ifdef CRYPTO_MDEBUG
 608         CRYPTO_pop_info();
 609         CRYPTO_push_info("X509_STORE_add_lookup(...hash_dir)");
 610 #endif
 611         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
 612         if (lookup == NULL) goto end;
 613 #ifdef CRYPTO_MDEBUG
 614         CRYPTO_pop_info();
 615         CRYPTO_push_info("X509_LOOKUP_add_dir");
 616 #endif
 617         if (CApath) {
 618                 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
 619                         BIO_printf(bio_err, "Error loading directory %s\n", CApath);
 620                         goto end;
 621                 }
 622         } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
 623 #ifdef CRYPTO_MDEBUG
 624         CRYPTO_pop_info();
 625 #endif
 626
 627         ERR_clear_error();
 628         return store;
 629         end:
 630         X509_STORE_free(store);
 631         return NULL;
 632 }
 633
 634 static int save_certs(char *signerfile, STACK_OF(X509) *signers)
 635 {
 636         int i;
 637         BIO *tmp;
 638         if(!signerfile) return 1;
 639         tmp = BIO_new_file(signerfile, "w");
 640         if(!tmp) return 0;
 641         for(i = 0; i < sk_X509_num(signers); i++)
 642                 PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
 643         BIO_free(tmp);
 644         return 1;
 645 }
 646