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 argc, char **argv)
  84 {
  85         int operation = 0;
  86         int ret = 0;
  87         char **args;
  88         char *inmode = "r", *outmode = "w";
  89         char *infile = NULL, *outfile = NULL;
  90         char *signerfile = NULL, *recipfile = NULL;
  91         char *certfile = NULL, *keyfile = NULL;
  92         EVP_CIPHER *cipher = NULL;
  93         PKCS7 *p7 = NULL;
  94         X509_STORE *store = NULL;
  95         X509 *cert = NULL, *recip = NULL, *signer = NULL;
  96         EVP_PKEY *key = NULL;
  97         STACK_OF(X509) *encerts = NULL, *other = NULL;
  98         BIO *in = NULL, *out = NULL, *indata = NULL;
  99         int badarg = 0;
 100         int flags = PKCS7_DETACHED;
 101         char *to = NULL, *from = NULL, *subject = NULL;
 102         char *CAfile = NULL, *CApath = NULL, *passin = NULL;
 103
 104         args = argv + 1;
 105
 106         ret = 1;
 107
 108         while (!badarg && *args && *args[0] == '-') {
 109                 if (!strcmp (*args, "-encrypt")) operation = SMIME_ENCRYPT;
 110                 else if (!strcmp (*args, "-decrypt")) operation = SMIME_DECRYPT;
 111                 else if (!strcmp (*args, "-sign")) operation = SMIME_SIGN;
 112                 else if (!strcmp (*args, "-verify")) operation = SMIME_VERIFY;
 113                 else if (!strcmp (*args, "-pk7out")) operation = SMIME_PK7OUT;
 114 #ifndef NO_DES
 115                 else if (!strcmp (*args, "-des3"))
 116                                 cipher = EVP_des_ede3_cbc();
 117                 else if (!strcmp (*args, "-des"))
 118                                 cipher = EVP_des_cbc();
 119 #endif
 120 #ifndef NO_RC2
 121                 else if (!strcmp (*args, "-rc2-40"))
 122                                 cipher = EVP_rc2_40_cbc();
 123                 else if (!strcmp (*args, "-rc2-128"))
 124                                 cipher = EVP_rc2_cbc();
 125                 else if (!strcmp (*args, "-rc2-64"))
 126                                 cipher = EVP_rc2_64_cbc();
 127 #endif
 128                 else if (!strcmp (*args, "-text"))
 129                                 flags |= PKCS7_TEXT;
 130                 else if (!strcmp (*args, "-nointern"))
 131                                 flags |= PKCS7_NOINTERN;
 132                 else if (!strcmp (*args, "-noverify"))
 133                                 flags |= PKCS7_NOVERIFY;
 134                 else if (!strcmp (*args, "-nochain"))
 135                                 flags |= PKCS7_NOCHAIN;
 136                 else if (!strcmp (*args, "-nocerts"))
 137                                 flags |= PKCS7_NOCERTS;
 138                 else if (!strcmp (*args, "-noattr"))
 139                                 flags |= PKCS7_NOATTR;
 140                 else if (!strcmp (*args, "-nodetach"))
 141                                 flags &= ~PKCS7_DETACHED;
 142                 else if (!strcmp (*args, "-binary"))
 143                                 flags |= PKCS7_BINARY;
 144                 else if (!strcmp (*args, "-nosigs"))
 145                                 flags |= PKCS7_NOSIGS;
 146                 else if (!strcmp(*argv,"-passin")) {
 147                         if (--argc < 1) badarg = 1;
 148                         else passin= *(++argv);
 149                 } else if (!strcmp(*argv,"-envpassin")) {
 150                         if (--argc < 1) badarg = 1;
 151                         else if(!(passin= getenv(*(++argv)))) {
 152                                 BIO_printf(bio_err,
 153                                  "Can't read environment variable %s\n",
 154                                                                 *argv);
 155                                 badarg = 1;
 156                         }
 157                 } else if (!strcmp (*args, "-to")) {
 158                         if (args[1]) {
 159                                 args++;
 160                                 to = *args;
 161                         } else badarg = 1;
 162                 } else if (!strcmp (*args, "-from")) {
 163                         if (args[1]) {
 164                                 args++;
 165                                 from = *args;
 166                         } else badarg = 1;
 167                 } else if (!strcmp (*args, "-subject")) {
 168                         if (args[1]) {
 169                                 args++;
 170                                 subject = *args;
 171                         } else badarg = 1;
 172                 } else if (!strcmp (*args, "-signer")) {
 173                         if (args[1]) {
 174                                 args++;
 175                                 signerfile = *args;
 176                         } else badarg = 1;
 177                 } else if (!strcmp (*args, "-recip")) {
 178                         if (args[1]) {
 179                                 args++;
 180                                 recipfile = *args;
 181                         } else badarg = 1;
 182                 } else if (!strcmp (*args, "-inkey")) {
 183                         if (args[1]) {
 184                                 args++;
 185                                 keyfile = *args;
 186                         } else badarg = 1;
 187                 } else if (!strcmp (*args, "-certfile")) {
 188                         if (args[1]) {
 189                                 args++;
 190                                 certfile = *args;
 191                         } else badarg = 1;
 192                 } else if (!strcmp (*args, "-CAfile")) {
 193                         if (args[1]) {
 194                                 args++;
 195                                 CAfile = *args;
 196                         } else badarg = 1;
 197                 } else if (!strcmp (*args, "-CApath")) {
 198                         if (args[1]) {
 199                                 args++;
 200                                 CApath = *args;
 201                         } else badarg = 1;
 202                 } else if (!strcmp (*args, "-in")) {
 203                         if (args[1]) {
 204                                 args++;
 205                                 infile = *args;
 206                         } else badarg = 1;
 207                 } else if (!strcmp (*args, "-out")) {
 208                         if (args[1]) {
 209                                 args++;
 210                                 outfile = *args;
 211                         } else badarg = 1;
 212                 } else badarg = 1;
 213                 args++;
 214         }
 215
 216         if(operation == SMIME_SIGN) {
 217                 if(!signerfile) {
 218                         BIO_printf(bio_err, "No signer certificate specified\n");
 219                         badarg = 1;
 220                 }
 221         } else if(operation == SMIME_DECRYPT) {
 222                 if(!recipfile) {
 223                         BIO_printf(bio_err, "No recipient certificate and key specified\n");
 224                         badarg = 1;
 225                 }
 226         } else if(operation == SMIME_ENCRYPT) {
 227                 if(!*args) {
 228                         BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
 229                         badarg = 1;
 230                 }
 231         } else if(!operation) badarg = 1;
 232
 233         if (badarg) {
 234                 BIO_printf (bio_err, "Usage smime [options] cert.pem ...\n");
 235                 BIO_printf (bio_err, "where options are\n");
 236                 BIO_printf (bio_err, "-encrypt       encrypt message\n");
 237                 BIO_printf (bio_err, "-decrypt       decrypt encrypted message\n");
 238                 BIO_printf (bio_err, "-sign          sign message\n");
 239                 BIO_printf (bio_err, "-verify        verify signed message\n");
 240                 BIO_printf (bio_err, "-pk7out        output PKCS#7 structure\n");
 241 #ifndef NO_DES
 242                 BIO_printf (bio_err, "-des3          encrypt with triple DES\n");
 243                 BIO_printf (bio_err, "-des           encrypt with DES\n");
 244 #endif
 245 #ifndef NO_RC2
 246                 BIO_printf (bio_err, "-rc2-40        encrypt with RC2-40 (default)\n");
 247                 BIO_printf (bio_err, "-rc2-64        encrypt with RC2-64\n");
 248                 BIO_printf (bio_err, "-rc2-128       encrypt with RC2-128\n");
 249 #endif
 250                 BIO_printf (bio_err, "-nointern      don't search certificates in message for signer\n");
 251                 BIO_printf (bio_err, "-nosigs        don't verify message signature\n");
 252                 BIO_printf (bio_err, "-noverify      don't verify signers certificate\n");
 253                 BIO_printf (bio_err, "-nocerts       don't include signers certificate when signing\n");
 254                 BIO_printf (bio_err, "-nodetach      use opaque signing\n");
 255                 BIO_printf (bio_err, "-noattr        don't include any signed attributes\n");
 256                 BIO_printf (bio_err, "-binary        don't translate message to text\n");
 257                 BIO_printf (bio_err, "-certfile file other certificates file\n");
 258                 BIO_printf (bio_err, "-signer file   signer certificate file\n");
 259                 BIO_printf (bio_err, "-recip  file   recipient certificate file for decryption\n");
 260                 BIO_printf (bio_err, "-in file       input file\n");
 261                 BIO_printf (bio_err, "-inkey file    input private key (if not signer or recipient)\n");
 262                 BIO_printf (bio_err, "-out file      output file\n");
 263                 BIO_printf (bio_err, "-to addr       to address\n");
 264                 BIO_printf (bio_err, "-from ad       from address\n");
 265                 BIO_printf (bio_err, "-subject s     subject\n");
 266                 BIO_printf (bio_err, "-text          include or delete text MIME headers\n");
 267                 BIO_printf (bio_err, "-CApath dir    trusted certificates directory\n");
 268                 BIO_printf (bio_err, "-CAfile file   trusted certificates file\n");
 269                 BIO_printf (bio_err, "cert.pem       recipient certificate(s) for encryption\n");
 270                 goto end;
 271         }
 272
 273         ret = 2;
 274
 275         if(operation != SMIME_SIGN) flags &= ~PKCS7_DETACHED;
 276
 277         if(flags & PKCS7_BINARY) {
 278                 if(operation & SMIME_OP) inmode = "rb";
 279                 else outmode = "rb";
 280         }
 281
 282         if(operation == SMIME_ENCRYPT) {
 283                 if (!cipher) {
 284 #ifndef NO_RC2
 285                         cipher = EVP_rc2_40_cbc();
 286 #else
 287                         BIO_printf(bio_err, "No cipher selected\n");
 288                         goto end;
 289 #endif
 290                 }
 291 #ifdef CRYPTO_MDEBUG
 292                 CRYPTO_push_info("load encryption certificates");
 293 #endif
 294                 encerts = sk_X509_new_null();
 295                 while (*args) {
 296                         if(!(cert = load_cert(*args))) {
 297                                 BIO_printf(bio_err, "Can't read recipent certificate file %s\n", *args);
 298                                 goto end;
 299                         }
 300                         sk_X509_push(encerts, cert);
 301                         cert = NULL;
 302                         args++;
 303                 }
 304 #ifdef CRYPTO_MDEBUG
 305                 CRYPTO_pop_info();
 306 #endif
 307         }
 308
 309         if(signerfile && (operation == SMIME_SIGN)) {
 310 #ifdef CRYPTO_MDEBUG
 311                 CRYPTO_push_info("load signer certificate");
 312 #endif
 313                 if(!(signer = load_cert(signerfile))) {
 314                         BIO_printf(bio_err, "Can't read signer certificate file %s\n", signerfile);
 315                         goto end;
 316                 }
 317 #ifdef CRYPTO_MDEBUG
 318                 CRYPTO_pop_info();
 319 #endif
 320         }
 321
 322         if(certfile) {
 323 #ifdef CRYPTO_MDEBUG
 324                 CRYPTO_push_info("load other certfiles");
 325 #endif
 326                 if(!(other = load_certs(certfile))) {
 327                         BIO_printf(bio_err, "Can't read certificate file %s\n", certfile);
 328                         ERR_print_errors(bio_err);
 329                         goto end;
 330                 }
 331 #ifdef CRYPTO_MDEBUG
 332                 CRYPTO_pop_info();
 333 #endif
 334         }
 335
 336         if(recipfile && (operation == SMIME_DECRYPT)) {
 337 #ifdef CRYPTO_MDEBUG
 338                 CRYPTO_push_info("load recipient certificate");
 339 #endif
 340                 if(!(recip = load_cert(recipfile))) {
 341                         BIO_printf(bio_err, "Can't read recipient certificate file %s\n", recipfile);
 342                         ERR_print_errors(bio_err);
 343                         goto end;
 344                 }
 345 #ifdef CRYPTO_MDEBUG
 346                 CRYPTO_pop_info();
 347 #endif
 348         }
 349
 350         if(operation == SMIME_DECRYPT) {
 351                 if(!keyfile) keyfile = recipfile;
 352         } else if(operation == SMIME_SIGN) {
 353                 if(!keyfile) keyfile = signerfile;
 354         } else keyfile = NULL;
 355
 356         if(keyfile) {
 357 #ifdef CRYPTO_MDEBUG
 358                 CRYPTO_push_info("load keyfile");
 359 #endif
 360                 if(!(key = load_key(keyfile, passin))) {
 361                         BIO_printf(bio_err, "Can't read recipient certificate file %s\n", keyfile);
 362                         ERR_print_errors(bio_err);
 363                         goto end;
 364                 }
 365 #ifdef CRYPTO_MDEBUG
 366                 CRYPTO_pop_info();
 367 #endif
 368         }
 369
 370 #ifdef CRYPTO_MDEBUG
 371         CRYPTO_push_info("open input files");
 372 #endif
 373         if (infile) {
 374                 if (!(in = BIO_new_file(infile, inmode))) {
 375                         BIO_printf (bio_err,
 376                                  "Can't open input file %s\n", infile);
 377                         goto end;
 378                 }
 379         } else in = BIO_new_fp(stdin, BIO_NOCLOSE);
 380 #ifdef CRYPTO_MDEBUG
 381         CRYPTO_pop_info();
 382 #endif
 383
 384 #ifdef CRYPTO_MDEBUG
 385         CRYPTO_push_info("open output files");
 386 #endif
 387         if (outfile) {
 388                 if (!(out = BIO_new_file(outfile, outmode))) {
 389                         BIO_printf (bio_err,
 390                                  "Can't open output file %s\n", outfile);
 391                         goto end;
 392                 }
 393         } else out = BIO_new_fp(stdout, BIO_NOCLOSE);
 394 #ifdef CRYPTO_MDEBUG
 395         CRYPTO_pop_info();
 396 #endif
 397
 398         if(operation == SMIME_VERIFY) {
 399 #ifdef CRYPTO_MDEBUG
 400                 CRYPTO_push_info("setup_verify");
 401 #endif
 402                 if(!(store = setup_verify(CAfile, CApath))) goto end;
 403 #ifdef CRYPTO_MDEBUG
 404                 CRYPTO_pop_info();
 405 #endif
 406         }
 407
 408         ret = 3;
 409
 410         if(operation == SMIME_ENCRYPT) {
 411 #ifdef CRYPTO_MDEBUG
 412                 CRYPTO_push_info("PKCS7_encrypt");
 413 #endif
 414                 p7 = PKCS7_encrypt(encerts, in, cipher, flags);
 415 #ifdef CRYPTO_MDEBUG
 416                 CRYPTO_pop_info();
 417 #endif
 418         } else if(operation == SMIME_SIGN) {
 419 #ifdef CRYPTO_MDEBUG
 420                 CRYPTO_push_info("PKCS7_sign");
 421 #endif
 422                 p7 = PKCS7_sign(signer, key, other, in, flags);
 423                 BIO_reset(in);
 424 #ifdef CRYPTO_MDEBUG
 425                 CRYPTO_pop_info();
 426 #endif
 427         } else {
 428 #ifdef CRYPTO_MDEBUG
 429                 CRYPTO_push_info("SMIME_read_PKCS7");
 430 #endif
 431                 if(!(p7 = SMIME_read_PKCS7(in, &indata))) {
 432                         BIO_printf(bio_err, "Error reading S/MIME message\n");
 433                         goto end;
 434                 }
 435 #ifdef CRYPTO_MDEBUG
 436                 CRYPTO_pop_info();
 437 #endif
 438         }
 439
 440         if(!p7) {
 441                 BIO_printf(bio_err, "Error creating PKCS#7 structure\n");
 442                 goto end;
 443         }
 444
 445         ret = 4;
 446         if(operation == SMIME_DECRYPT) {
 447 #ifdef CRYPTO_MDEBUG
 448                 CRYPTO_push_info("PKCS7_decrypt");
 449 #endif
 450                 if(!PKCS7_decrypt(p7, key, recip, out, flags)) {
 451                         BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n");
 452                         goto end;
 453                 }
 454 #ifdef CRYPTO_MDEBUG
 455                 CRYPTO_pop_info();
 456 #endif
 457         } else if(operation == SMIME_VERIFY) {
 458                 STACK_OF(X509) *signers;
 459 #ifdef CRYPTO_MDEBUG
 460                 CRYPTO_push_info("PKCS7_verify");
 461 #endif
 462                 if(PKCS7_verify(p7, other, store, indata, out, flags)) {
 463                         BIO_printf(bio_err, "Verification Successful\n");
 464                 } else {
 465                         BIO_printf(bio_err, "Verification Failure\n");
 466                         goto end;
 467                 }
 468 #ifdef CRYPTO_MDEBUG
 469                 CRYPTO_pop_info();
 470                 CRYPTO_push_info("PKCS7_iget_signers");
 471 #endif
 472                 signers = PKCS7_iget_signers(p7, other, flags);
 473 #ifdef CRYPTO_MDEBUG
 474                 CRYPTO_pop_info();
 475                 CRYPTO_push_info("save_certs");
 476 #endif
 477                 if(!save_certs(signerfile, signers)) {
 478                         BIO_printf(bio_err, "Error writing signers to %s\n",
 479                                                                 signerfile);
 480                         ret = 5;
 481                         goto end;
 482                 }
 483 #ifdef CRYPTO_MDEBUG
 484                 CRYPTO_pop_info();
 485 #endif
 486                 sk_X509_free(signers);
 487         } else if(operation == SMIME_PK7OUT) {
 488                 PEM_write_bio_PKCS7(out, p7);
 489         } else {
 490                 if(to) BIO_printf(out, "To: %s\n", to);
 491                 if(from) BIO_printf(out, "From: %s\n", from);
 492                 if(subject) BIO_printf(out, "Subject: %s\n", subject);
 493                 SMIME_write_PKCS7(out, p7, in, flags);
 494         }
 495         ret = 0;
 496 end:
 497 #ifdef CRYPTO_MDEBUG
 498         CRYPTO_remove_all_info();
 499 #endif
 500         if(ret) ERR_print_errors(bio_err);
 501         sk_X509_pop_free(encerts, X509_free);
 502         sk_X509_pop_free(other, X509_free);
 503         X509_STORE_free(store);
 504         X509_free(cert);
 505         X509_free(recip);
 506         X509_free(signer);
 507         EVP_PKEY_free(key);
 508         PKCS7_free(p7);
 509         BIO_free(in);
 510         BIO_free(indata);
 511         BIO_free(out);
 512         return (ret);
 513 }
 514
 515 static X509 *load_cert(char *file)
 516 {
 517         BIO *in;
 518         X509 *cert;
 519         if(!(in = BIO_new_file(file, "r"))) return NULL;
 520         cert = PEM_read_bio_X509(in, NULL, NULL,NULL);
 521         BIO_free(in);
 522         return cert;
 523 }
 524
 525 static EVP_PKEY *load_key(char *file, char *pass)
 526 {
 527         BIO *in;
 528         EVP_PKEY *key;
 529         if(!(in = BIO_new_file(file, "r"))) return NULL;
 530         key = PEM_read_bio_PrivateKey(in, NULL,PEM_cb,pass);
 531         BIO_free(in);
 532         return key;
 533 }
 534
 535 static STACK_OF(X509) *load_certs(char *file)
 536 {
 537         BIO *in;
 538         int i;
 539         STACK_OF(X509) *othercerts;
 540         STACK_OF(X509_INFO) *allcerts;
 541         X509_INFO *xi;
 542         if(!(in = BIO_new_file(file, "r"))) return NULL;
 543         othercerts = sk_X509_new(NULL);
 544         if(!othercerts) return NULL;
 545         allcerts = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL);
 546         for(i = 0; i < sk_X509_INFO_num(allcerts); i++) {
 547                 xi = sk_X509_INFO_value (allcerts, i);
 548                 if (xi->x509) {
 549                         sk_X509_push(othercerts, xi->x509);
 550                         xi->x509 = NULL;
 551                 }
 552         }
 553         sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
 554         BIO_free(in);
 555         return othercerts;
 556 }
 557
 558 static X509_STORE *setup_verify(char *CAfile, char *CApath)
 559 {
 560         X509_STORE *store;
 561         X509_LOOKUP *lookup;
 562 #ifdef CRYPTO_MDEBUG
 563         CRYPTO_push_info("X509_STORE_new");
 564 #endif
 565         if(!(store = X509_STORE_new())) goto end;
 566 #ifdef CRYPTO_MDEBUG
 567         CRYPTO_pop_info();
 568         CRYPTO_push_info("X509_STORE_add_lookup(...file)");
 569 #endif
 570         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file());
 571         if (lookup == NULL) goto end;
 572 #ifdef CRYPTO_MDEBUG
 573         CRYPTO_pop_info();
 574         CRYPTO_push_info("X509_LOOKUP_load_file");
 575 #endif
 576         if (CAfile) {
 577                 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
 578                         BIO_printf(bio_err, "Error loading file %s\n", CAfile);
 579                         goto end;
 580                 }
 581         } else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
 582
 583 #ifdef CRYPTO_MDEBUG
 584         CRYPTO_pop_info();
 585         CRYPTO_push_info("X509_STORE_add_lookup(...hash_dir)");
 586 #endif
 587         lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
 588         if (lookup == NULL) goto end;
 589 #ifdef CRYPTO_MDEBUG
 590         CRYPTO_pop_info();
 591         CRYPTO_push_info("X509_LOOKUP_add_dir");
 592 #endif
 593         if (CApath) {
 594                 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
 595                         BIO_printf(bio_err, "Error loading directory %s\n", CApath);
 596                         goto end;
 597                 }
 598         } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
 599 #ifdef CRYPTO_MDEBUG
 600         CRYPTO_pop_info();
 601 #endif
 602
 603         ERR_clear_error();
 604         return store;
 605         end:
 606         X509_STORE_free(store);
 607         return NULL;
 608 }
 609
 610 int save_certs(char *signerfile, STACK_OF(X509) *signers)
 611 {
 612         int i;
 613         BIO *tmp;
 614         if(!signerfile) return 1;
 615         tmp = BIO_new_file(signerfile, "w");
 616         if(!tmp) return 0;
 617         for(i = 0; i < sk_X509_num(signers); i++)
 618                 PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
 619         BIO_free(tmp);
 620         return 1;
 621 }
 622