crypto/openssl/apps/cms.c

   1 /* apps/cms.c */
   2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
   3  * project.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2008 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
  54 /* CMS utility function */
  55
  56 #include <stdio.h>
  57 #include <string.h>
  58 #include "apps.h"
  59
  60 #ifndef OPENSSL_NO_CMS
  61
  62 #include <openssl/crypto.h>
  63 #include <openssl/pem.h>
  64 #include <openssl/err.h>
  65 #include <openssl/x509_vfy.h>
  66 #include <openssl/x509v3.h>
  67 #include <openssl/cms.h>
  68
  69 #undef PROG
  70 #define PROG cms_main
  71 static int save_certs(char *signerfile, STACK_OF(X509) *signers);
  72 static int cms_cb(int ok, X509_STORE_CTX *ctx);
  73 static void receipt_request_print(BIO *out, CMS_ContentInfo *cms);
  74 static CMS_ReceiptRequest *make_receipt_request(STACK *rr_to, int rr_allorfirst,
  75                                                                 STACK *rr_from);
  76
  77 #define SMIME_OP        0x10
  78 #define SMIME_IP        0x20
  79 #define SMIME_SIGNERS   0x40
  80 #define SMIME_ENCRYPT           (1 | SMIME_OP)
  81 #define SMIME_DECRYPT           (2 | SMIME_IP)
  82 #define SMIME_SIGN              (3 | SMIME_OP | SMIME_SIGNERS)
  83 #define SMIME_VERIFY            (4 | SMIME_IP)
  84 #define SMIME_CMSOUT            (5 | SMIME_IP | SMIME_OP)
  85 #define SMIME_RESIGN            (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS)
  86 #define SMIME_DATAOUT           (7 | SMIME_IP)
  87 #define SMIME_DATA_CREATE       (8 | SMIME_OP)
  88 #define SMIME_DIGEST_VERIFY     (9 | SMIME_IP)
  89 #define SMIME_DIGEST_CREATE     (10 | SMIME_OP)
  90 #define SMIME_UNCOMPRESS        (11 | SMIME_IP)
  91 #define SMIME_COMPRESS          (12 | SMIME_OP)
  92 #define SMIME_ENCRYPTED_DECRYPT (13 | SMIME_IP)
  93 #define SMIME_ENCRYPTED_ENCRYPT (14 | SMIME_OP)
  94 #define SMIME_SIGN_RECEIPT      (15 | SMIME_IP | SMIME_OP)
  95 #define SMIME_VERIFY_RECEIPT    (16 | SMIME_IP)
  96
  97 int MAIN(int, char **);
  98
  99 int MAIN(int argc, char **argv)
 100         {
 101         ENGINE *e = NULL;
 102         int operation = 0;
 103         int ret = 0;
 104         char **args;
 105         const char *inmode = "r", *outmode = "w";
 106         char *infile = NULL, *outfile = NULL, *rctfile = NULL;
 107         char *signerfile = NULL, *recipfile = NULL;
 108         STACK *sksigners = NULL, *skkeys = NULL;
 109         char *certfile = NULL, *keyfile = NULL, *contfile=NULL;
 110         char *certsoutfile = NULL;
 111         const EVP_CIPHER *cipher = NULL;
 112         CMS_ContentInfo *cms = NULL, *rcms = NULL;
 113         X509_STORE *store = NULL;
 114         X509 *cert = NULL, *recip = NULL, *signer = NULL;
 115         EVP_PKEY *key = NULL;
 116         STACK_OF(X509) *encerts = NULL, *other = NULL;
 117         BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL;
 118         int badarg = 0;
 119         int flags = CMS_DETACHED;
 120         int rr_print = 0, rr_allorfirst = -1;
 121         STACK *rr_to = NULL, *rr_from = NULL;
 122         CMS_ReceiptRequest *rr = NULL;
 123         char *to = NULL, *from = NULL, *subject = NULL;
 124         char *CAfile = NULL, *CApath = NULL;
 125         char *passargin = NULL, *passin = NULL;
 126         char *inrand = NULL;
 127         int need_rand = 0;
 128         const EVP_MD *sign_md = NULL;
 129         int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
 130         int rctformat = FORMAT_SMIME, keyform = FORMAT_PEM;
 131 #ifndef OPENSSL_NO_ENGINE
 132         char *engine=NULL;
 133 #endif
 134         unsigned char *secret_key = NULL, *secret_keyid = NULL;
 135         size_t secret_keylen = 0, secret_keyidlen = 0;
 136
 137         ASN1_OBJECT *econtent_type = NULL;
 138
 139         X509_VERIFY_PARAM *vpm = NULL;
 140
 141         args = argv + 1;
 142         ret = 1;
 143
 144         apps_startup();
 145
 146         if (bio_err == NULL)
 147                 {
 148                 if ((bio_err = BIO_new(BIO_s_file())) != NULL)
 149                         BIO_set_fp(bio_err, stderr, BIO_NOCLOSE|BIO_FP_TEXT);
 150                 }
 151
 152         if (!load_config(bio_err, NULL))
 153                 goto end;
 154
 155         while (!badarg && *args && *args[0] == '-')
 156                 {
 157                 if (!strcmp (*args, "-encrypt"))
 158                         operation = SMIME_ENCRYPT;
 159                 else if (!strcmp (*args, "-decrypt"))
 160                         operation = SMIME_DECRYPT;
 161                 else if (!strcmp (*args, "-sign"))
 162                         operation = SMIME_SIGN;
 163                 else if (!strcmp (*args, "-sign_receipt"))
 164                         operation = SMIME_SIGN_RECEIPT;
 165                 else if (!strcmp (*args, "-resign"))
 166                         operation = SMIME_RESIGN;
 167                 else if (!strcmp (*args, "-verify"))
 168                         operation = SMIME_VERIFY;
 169                 else if (!strcmp(*args,"-verify_receipt"))
 170                         {
 171                         operation = SMIME_VERIFY_RECEIPT;
 172                         if (!args[1])
 173                                 goto argerr;
 174                         args++;
 175                         rctfile = *args;
 176                         }
 177                 else if (!strcmp (*args, "-cmsout"))
 178                         operation = SMIME_CMSOUT;
 179                 else if (!strcmp (*args, "-data_out"))
 180                         operation = SMIME_DATAOUT;
 181                 else if (!strcmp (*args, "-data_create"))
 182                         operation = SMIME_DATA_CREATE;
 183                 else if (!strcmp (*args, "-digest_verify"))
 184                         operation = SMIME_DIGEST_VERIFY;
 185                 else if (!strcmp (*args, "-digest_create"))
 186                         operation = SMIME_DIGEST_CREATE;
 187                 else if (!strcmp (*args, "-compress"))
 188                         operation = SMIME_COMPRESS;
 189                 else if (!strcmp (*args, "-uncompress"))
 190                         operation = SMIME_UNCOMPRESS;
 191                 else if (!strcmp (*args, "-EncryptedData_decrypt"))
 192                         operation = SMIME_ENCRYPTED_DECRYPT;
 193                 else if (!strcmp (*args, "-EncryptedData_encrypt"))
 194                         operation = SMIME_ENCRYPTED_ENCRYPT;
 195 #ifndef OPENSSL_NO_DES
 196                 else if (!strcmp (*args, "-des3"))
 197                                 cipher = EVP_des_ede3_cbc();
 198                 else if (!strcmp (*args, "-des"))
 199                                 cipher = EVP_des_cbc();
 200 #endif
 201 #ifndef OPENSSL_NO_SEED
 202                 else if (!strcmp (*args, "-seed"))
 203                                 cipher = EVP_seed_cbc();
 204 #endif
 205 #ifndef OPENSSL_NO_RC2
 206                 else if (!strcmp (*args, "-rc2-40"))
 207                                 cipher = EVP_rc2_40_cbc();
 208                 else if (!strcmp (*args, "-rc2-128"))
 209                                 cipher = EVP_rc2_cbc();
 210                 else if (!strcmp (*args, "-rc2-64"))
 211                                 cipher = EVP_rc2_64_cbc();
 212 #endif
 213 #ifndef OPENSSL_NO_AES
 214                 else if (!strcmp(*args,"-aes128"))
 215                                 cipher = EVP_aes_128_cbc();
 216                 else if (!strcmp(*args,"-aes192"))
 217                                 cipher = EVP_aes_192_cbc();
 218                 else if (!strcmp(*args,"-aes256"))
 219                                 cipher = EVP_aes_256_cbc();
 220 #endif
 221 #ifndef OPENSSL_NO_CAMELLIA
 222                 else if (!strcmp(*args,"-camellia128"))
 223                                 cipher = EVP_camellia_128_cbc();
 224                 else if (!strcmp(*args,"-camellia192"))
 225                                 cipher = EVP_camellia_192_cbc();
 226                 else if (!strcmp(*args,"-camellia256"))
 227                                 cipher = EVP_camellia_256_cbc();
 228 #endif
 229                 else if (!strcmp (*args, "-debug_decrypt"))
 230                                 flags |= CMS_DEBUG_DECRYPT;
 231                 else if (!strcmp (*args, "-text"))
 232                                 flags |= CMS_TEXT;
 233                 else if (!strcmp (*args, "-nointern"))
 234                                 flags |= CMS_NOINTERN;
 235                 else if (!strcmp (*args, "-noverify")
 236                         || !strcmp (*args, "-no_signer_cert_verify"))
 237                                 flags |= CMS_NO_SIGNER_CERT_VERIFY;
 238                 else if (!strcmp (*args, "-nocerts"))
 239                                 flags |= CMS_NOCERTS;
 240                 else if (!strcmp (*args, "-noattr"))
 241                                 flags |= CMS_NOATTR;
 242                 else if (!strcmp (*args, "-nodetach"))
 243                                 flags &= ~CMS_DETACHED;
 244                 else if (!strcmp (*args, "-nosmimecap"))
 245                                 flags |= CMS_NOSMIMECAP;
 246                 else if (!strcmp (*args, "-binary"))
 247                                 flags |= CMS_BINARY;
 248                 else if (!strcmp (*args, "-keyid"))
 249                                 flags |= CMS_USE_KEYID;
 250                 else if (!strcmp (*args, "-nosigs"))
 251                                 flags |= CMS_NOSIGS;
 252                 else if (!strcmp (*args, "-no_content_verify"))
 253                                 flags |= CMS_NO_CONTENT_VERIFY;
 254                 else if (!strcmp (*args, "-no_attr_verify"))
 255                                 flags |= CMS_NO_ATTR_VERIFY;
 256                 else if (!strcmp (*args, "-stream"))
 257                                 {
 258                                 args++;
 259                                 continue;
 260                                 }
 261                 else if (!strcmp (*args, "-indef"))
 262                                 {
 263                                 args++;
 264                                 continue;
 265                                 }
 266                 else if (!strcmp (*args, "-noindef"))
 267                                 flags &= ~CMS_STREAM;
 268                 else if (!strcmp (*args, "-nooldmime"))
 269                                 flags |= CMS_NOOLDMIMETYPE;
 270                 else if (!strcmp (*args, "-crlfeol"))
 271                                 flags |= CMS_CRLFEOL;
 272                 else if (!strcmp (*args, "-receipt_request_print"))
 273                                 rr_print = 1;
 274                 else if (!strcmp (*args, "-receipt_request_all"))
 275                                 rr_allorfirst = 0;
 276                 else if (!strcmp (*args, "-receipt_request_first"))
 277                                 rr_allorfirst = 1;
 278                 else if (!strcmp(*args,"-receipt_request_from"))
 279                         {
 280                         if (!args[1])
 281                                 goto argerr;
 282                         args++;
 283                         if (!rr_from)
 284                                 rr_from = sk_new_null();
 285                         sk_push(rr_from, *args);
 286                         }
 287                 else if (!strcmp(*args,"-receipt_request_to"))
 288                         {
 289                         if (!args[1])
 290                                 goto argerr;
 291                         args++;
 292                         if (!rr_to)
 293                                 rr_to = sk_new_null();
 294                         sk_push(rr_to, *args);
 295                         }
 296                 else if (!strcmp(*args,"-secretkey"))
 297                         {
 298                         long ltmp;
 299                         if (!args[1])
 300                                 goto argerr;
 301                         args++;
 302                         secret_key = string_to_hex(*args, &ltmp);
 303                         if (!secret_key)
 304                                 {
 305                                 BIO_printf(bio_err, "Invalid key %s\n", *args);
 306                                 goto argerr;
 307                                 }
 308                         secret_keylen = (size_t)ltmp;
 309                         }
 310                 else if (!strcmp(*args,"-secretkeyid"))
 311                         {
 312                         long ltmp;
 313                         if (!args[1])
 314                                 goto argerr;
 315                         args++;
 316                         secret_keyid = string_to_hex(*args, &ltmp);
 317                         if (!secret_keyid)
 318                                 {
 319                                 BIO_printf(bio_err, "Invalid id %s\n", *args);
 320                                 goto argerr;
 321                                 }
 322                         secret_keyidlen = (size_t)ltmp;
 323                         }
 324                 else if (!strcmp(*args,"-econtent_type"))
 325                         {
 326                         if (!args[1])
 327                                 goto argerr;
 328                         args++;
 329                         econtent_type = OBJ_txt2obj(*args, 0);
 330                         if (!econtent_type)
 331                                 {
 332                                 BIO_printf(bio_err, "Invalid OID %s\n", *args);
 333                                 goto argerr;
 334                                 }
 335                         }
 336                 else if (!strcmp(*args,"-rand"))
 337                         {
 338                         if (!args[1])
 339                                 goto argerr;
 340                         args++;
 341                         inrand = *args;
 342                         need_rand = 1;
 343                         }
 344 #ifndef OPENSSL_NO_ENGINE
 345                 else if (!strcmp(*args,"-engine"))
 346                         {
 347                         if (!args[1])
 348                                 goto argerr;
 349                         engine = *++args;
 350                         }
 351 #endif
 352                 else if (!strcmp(*args,"-passin"))
 353                         {
 354                         if (!args[1])
 355                                 goto argerr;
 356                         passargin = *++args;
 357                         }
 358                 else if (!strcmp (*args, "-to"))
 359                         {
 360                         if (!args[1])
 361                                 goto argerr;
 362                         to = *++args;
 363                         }
 364                 else if (!strcmp (*args, "-from"))
 365                         {
 366                         if (!args[1])
 367                                 goto argerr;
 368                         from = *++args;
 369                         }
 370                 else if (!strcmp (*args, "-subject"))
 371                         {
 372                         if (!args[1])
 373                                 goto argerr;
 374                         subject = *++args;
 375                         }
 376                 else if (!strcmp (*args, "-signer"))
 377                         {
 378                         if (!args[1])
 379                                 goto argerr;
 380                         /* If previous -signer argument add signer to list */
 381
 382                         if (signerfile)
 383                                 {
 384                                 if (!sksigners)
 385                                         sksigners = sk_new_null();
 386                                 sk_push(sksigners, signerfile);
 387                                 if (!keyfile)
 388                                         keyfile = signerfile;
 389                                 if (!skkeys)
 390                                         skkeys = sk_new_null();
 391                                 sk_push(skkeys, keyfile);
 392                                 keyfile = NULL;
 393                                 }
 394                         signerfile = *++args;
 395                         }
 396                 else if (!strcmp (*args, "-recip"))
 397                         {
 398                         if (!args[1])
 399                                 goto argerr;
 400                         recipfile = *++args;
 401                         }
 402                 else if (!strcmp (*args, "-certsout"))
 403                         {
 404                         if (!args[1])
 405                                 goto argerr;
 406                         certsoutfile = *++args;
 407                         }
 408                 else if (!strcmp (*args, "-md"))
 409                         {
 410                         if (!args[1])
 411                                 goto argerr;
 412                         sign_md = EVP_get_digestbyname(*++args);
 413                         if (sign_md == NULL)
 414                                 {
 415                                 BIO_printf(bio_err, "Unknown digest %s\n",
 416                                                         *args);
 417                                 goto argerr;
 418                                 }
 419                         }
 420                 else if (!strcmp (*args, "-inkey"))
 421                         {
 422                         if (!args[1])
 423                                 goto argerr;
 424                         /* If previous -inkey arument add signer to list */
 425                         if (keyfile)
 426                                 {
 427                                 if (!signerfile)
 428                                         {
 429                                         BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 430                                         goto argerr;
 431                                         }
 432                                 if (!sksigners)
 433                                         sksigners = sk_new_null();
 434                                 sk_push(sksigners, signerfile);
 435                                 signerfile = NULL;
 436                                 if (!skkeys)
 437                                         skkeys = sk_new_null();
 438                                 sk_push(skkeys, keyfile);
 439                                 }
 440                         keyfile = *++args;
 441                         }
 442                 else if (!strcmp (*args, "-keyform"))
 443                         {
 444                         if (!args[1])
 445                                 goto argerr;
 446                         keyform = str2fmt(*++args);
 447                         }
 448                 else if (!strcmp (*args, "-rctform"))
 449                         {
 450                         if (!args[1])
 451                                 goto argerr;
 452                         rctformat = str2fmt(*++args);
 453                         }
 454                 else if (!strcmp (*args, "-certfile"))
 455                         {
 456                         if (!args[1])
 457                                 goto argerr;
 458                         certfile = *++args;
 459                         }
 460                 else if (!strcmp (*args, "-CAfile"))
 461                         {
 462                         if (!args[1])
 463                                 goto argerr;
 464                         CAfile = *++args;
 465                         }
 466                 else if (!strcmp (*args, "-CApath"))
 467                         {
 468                         if (!args[1])
 469                                 goto argerr;
 470                         CApath = *++args;
 471                         }
 472                 else if (!strcmp (*args, "-in"))
 473                         {
 474                         if (!args[1])
 475                                 goto argerr;
 476                         infile = *++args;
 477                         }
 478                 else if (!strcmp (*args, "-inform"))
 479                         {
 480                         if (!args[1])
 481                                 goto argerr;
 482                         informat = str2fmt(*++args);
 483                         }
 484                 else if (!strcmp (*args, "-outform"))
 485                         {
 486                         if (!args[1])
 487                                 goto argerr;
 488                         outformat = str2fmt(*++args);
 489                         }
 490                 else if (!strcmp (*args, "-out"))
 491                         {
 492                         if (!args[1])
 493                                 goto argerr;
 494                         outfile = *++args;
 495                         }
 496                 else if (!strcmp (*args, "-content"))
 497                         {
 498                         if (!args[1])
 499                                 goto argerr;
 500                         contfile = *++args;
 501                         }
 502                 else if (args_verify(&args, NULL, &badarg, bio_err, &vpm))
 503                         continue;
 504                 else if ((cipher = EVP_get_cipherbyname(*args + 1)) == NULL)
 505                         badarg = 1;
 506                 args++;
 507                 }
 508
 509         if (((rr_allorfirst != -1) || rr_from) && !rr_to)
 510                 {
 511                 BIO_puts(bio_err, "No Signed Receipts Recipients\n");
 512                 goto argerr;
 513                 }
 514
 515         if (!(operation & SMIME_SIGNERS)  && (rr_to || rr_from))
 516                 {
 517                 BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
 518                 goto argerr;
 519                 }
 520         if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners))
 521                 {
 522                 BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
 523                 goto argerr;
 524                 }
 525
 526         if (operation & SMIME_SIGNERS)
 527                 {
 528                 if (keyfile && !signerfile)
 529                         {
 530                         BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 531                         goto argerr;
 532                         }
 533                 /* Check to see if any final signer needs to be appended */
 534                 if (signerfile)
 535                         {
 536                         if (!sksigners)
 537                                 sksigners = sk_new_null();
 538                         sk_push(sksigners, signerfile);
 539                         if (!skkeys)
 540                                 skkeys = sk_new_null();
 541                         if (!keyfile)
 542                                 keyfile = signerfile;
 543                         sk_push(skkeys, keyfile);
 544                         }
 545                 if (!sksigners)
 546                         {
 547                         BIO_printf(bio_err, "No signer certificate specified\n");
 548                         badarg = 1;
 549                         }
 550                 signerfile = NULL;
 551                 keyfile = NULL;
 552                 need_rand = 1;
 553                 }
 554
 555         else if (operation == SMIME_DECRYPT)
 556                 {
 557                 if (!recipfile && !keyfile && !secret_key)
 558                         {
 559                         BIO_printf(bio_err, "No recipient certificate or key specified\n");
 560                         badarg = 1;
 561                         }
 562                 }
 563         else if (operation == SMIME_ENCRYPT)
 564                 {
 565                 if (!*args && !secret_key)
 566                         {
 567                         BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
 568                         badarg = 1;
 569                         }
 570                 need_rand = 1;
 571                 }
 572         else if (!operation)
 573                 badarg = 1;
 574
 575         if (badarg)
 576                 {
 577                 argerr:
 578                 BIO_printf (bio_err, "Usage cms [options] cert.pem ...\n");
 579                 BIO_printf (bio_err, "where options are\n");
 580                 BIO_printf (bio_err, "-encrypt       encrypt message\n");
 581                 BIO_printf (bio_err, "-decrypt       decrypt encrypted message\n");
 582                 BIO_printf (bio_err, "-sign          sign message\n");
 583                 BIO_printf (bio_err, "-verify        verify signed message\n");
 584                 BIO_printf (bio_err, "-cmsout        output CMS structure\n");
 585 #ifndef OPENSSL_NO_DES
 586                 BIO_printf (bio_err, "-des3          encrypt with triple DES\n");
 587                 BIO_printf (bio_err, "-des           encrypt with DES\n");
 588 #endif
 589 #ifndef OPENSSL_NO_SEED
 590                 BIO_printf (bio_err, "-seed          encrypt with SEED\n");
 591 #endif
 592 #ifndef OPENSSL_NO_RC2
 593                 BIO_printf (bio_err, "-rc2-40        encrypt with RC2-40 (default)\n");
 594                 BIO_printf (bio_err, "-rc2-64        encrypt with RC2-64\n");
 595                 BIO_printf (bio_err, "-rc2-128       encrypt with RC2-128\n");
 596 #endif
 597 #ifndef OPENSSL_NO_AES
 598                 BIO_printf (bio_err, "-aes128, -aes192, -aes256\n");
 599                 BIO_printf (bio_err, "               encrypt PEM output with cbc aes\n");
 600 #endif
 601 #ifndef OPENSSL_NO_CAMELLIA
 602                 BIO_printf (bio_err, "-camellia128, -camellia192, -camellia256\n");
 603                 BIO_printf (bio_err, "               encrypt PEM output with cbc camellia\n");
 604 #endif
 605                 BIO_printf (bio_err, "-nointern      don't search certificates in message for signer\n");
 606                 BIO_printf (bio_err, "-nosigs        don't verify message signature\n");
 607                 BIO_printf (bio_err, "-noverify      don't verify signers certificate\n");
 608                 BIO_printf (bio_err, "-nocerts       don't include signers certificate when signing\n");
 609                 BIO_printf (bio_err, "-nodetach      use opaque signing\n");
 610                 BIO_printf (bio_err, "-noattr        don't include any signed attributes\n");
 611                 BIO_printf (bio_err, "-binary        don't translate message to text\n");
 612                 BIO_printf (bio_err, "-certfile file other certificates file\n");
 613                 BIO_printf (bio_err, "-certsout file certificate output file\n");
 614                 BIO_printf (bio_err, "-signer file   signer certificate file\n");
 615                 BIO_printf (bio_err, "-recip  file   recipient certificate file for decryption\n");
 616                 BIO_printf (bio_err, "-keyid         use subject key identifier\n");
 617                 BIO_printf (bio_err, "-in file       input file\n");
 618                 BIO_printf (bio_err, "-inform arg    input format SMIME (default), PEM or DER\n");
 619                 BIO_printf (bio_err, "-inkey file    input private key (if not signer or recipient)\n");
 620                 BIO_printf (bio_err, "-keyform arg   input private key format (PEM or ENGINE)\n");
 621                 BIO_printf (bio_err, "-out file      output file\n");
 622                 BIO_printf (bio_err, "-outform arg   output format SMIME (default), PEM or DER\n");
 623                 BIO_printf (bio_err, "-content file  supply or override content for detached signature\n");
 624                 BIO_printf (bio_err, "-to addr       to address\n");
 625                 BIO_printf (bio_err, "-from ad       from address\n");
 626                 BIO_printf (bio_err, "-subject s     subject\n");
 627                 BIO_printf (bio_err, "-text          include or delete text MIME headers\n");
 628                 BIO_printf (bio_err, "-CApath dir    trusted certificates directory\n");
 629                 BIO_printf (bio_err, "-CAfile file   trusted certificates file\n");
 630                 BIO_printf (bio_err, "-crl_check     check revocation status of signer's certificate using CRLs\n");
 631                 BIO_printf (bio_err, "-crl_check_all check revocation status of signer's certificate chain using CRLs\n");
 632 #ifndef OPENSSL_NO_ENGINE
 633                 BIO_printf (bio_err, "-engine e      use engine e, possibly a hardware device.\n");
 634 #endif
 635                 BIO_printf (bio_err, "-passin arg    input file pass phrase source\n");
 636                 BIO_printf(bio_err,  "-rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 637                 BIO_printf(bio_err,  "               load the file (or the files in the directory) into\n");
 638                 BIO_printf(bio_err,  "               the random number generator\n");
 639                 BIO_printf (bio_err, "cert.pem       recipient certificate(s) for encryption\n");
 640                 goto end;
 641                 }
 642
 643 #ifndef OPENSSL_NO_ENGINE
 644         e = setup_engine(bio_err, engine, 0);
 645 #endif
 646
 647         if (!app_passwd(bio_err, passargin, NULL, &passin, NULL))
 648                 {
 649                 BIO_printf(bio_err, "Error getting password\n");
 650                 goto end;
 651                 }
 652
 653         if (need_rand)
 654                 {
 655                 app_RAND_load_file(NULL, bio_err, (inrand != NULL));
 656                 if (inrand != NULL)
 657                         BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 658                                 app_RAND_load_files(inrand));
 659                 }
 660
 661         ret = 2;
 662
 663         if (!(operation & SMIME_SIGNERS))
 664                 flags &= ~CMS_DETACHED;
 665
 666         if (operation & SMIME_OP)
 667                 {
 668                 if (outformat == FORMAT_ASN1)
 669                         outmode = "wb";
 670                 }
 671         else
 672                 {
 673                 if (flags & CMS_BINARY)
 674                         outmode = "wb";
 675                 }
 676
 677         if (operation & SMIME_IP)
 678                 {
 679                 if (informat == FORMAT_ASN1)
 680                         inmode = "rb";
 681                 }
 682         else
 683                 {
 684                 if (flags & CMS_BINARY)
 685                         inmode = "rb";
 686                 }
 687
 688         if (operation == SMIME_ENCRYPT)
 689                 {
 690                 if (!cipher)
 691                         {
 692 #ifndef OPENSSL_NO_DES
 693                         cipher = EVP_des_ede3_cbc();
 694 #else
 695                         BIO_printf(bio_err, "No cipher selected\n");
 696                         goto end;
 697 #endif
 698                         }
 699
 700                 if (secret_key && !secret_keyid)
 701                         {
 702                         BIO_printf(bio_err, "No sectre key id\n");
 703                         goto end;
 704                         }
 705
 706                 if (*args)
 707                         encerts = sk_X509_new_null();
 708                 while (*args)
 709                         {
 710                         if (!(cert = load_cert(bio_err,*args,FORMAT_PEM,
 711                                 NULL, e, "recipient certificate file")))
 712                                 goto end;
 713                         sk_X509_push(encerts, cert);
 714                         cert = NULL;
 715                         args++;
 716                         }
 717                 }
 718
 719         if (certfile)
 720                 {
 721                 if (!(other = load_certs(bio_err,certfile,FORMAT_PEM, NULL,
 722                         e, "certificate file")))
 723                         {
 724                         ERR_print_errors(bio_err);
 725                         goto end;
 726                         }
 727                 }
 728
 729         if (recipfile && (operation == SMIME_DECRYPT))
 730                 {
 731                 if (!(recip = load_cert(bio_err,recipfile,FORMAT_PEM,NULL,
 732                         e, "recipient certificate file")))
 733                         {
 734                         ERR_print_errors(bio_err);
 735                         goto end;
 736                         }
 737                 }
 738
 739         if (operation == SMIME_SIGN_RECEIPT)
 740                 {
 741                 if (!(signer = load_cert(bio_err,signerfile,FORMAT_PEM,NULL,
 742                         e, "receipt signer certificate file")))
 743                         {
 744                         ERR_print_errors(bio_err);
 745                         goto end;
 746                         }
 747                 }
 748
 749         if (operation == SMIME_DECRYPT)
 750                 {
 751                 if (!keyfile)
 752                         keyfile = recipfile;
 753                 }
 754         else if ((operation == SMIME_SIGN) || (operation == SMIME_SIGN_RECEIPT))
 755                 {
 756                 if (!keyfile)
 757                         keyfile = signerfile;
 758                 }
 759         else keyfile = NULL;
 760
 761         if (keyfile)
 762                 {
 763                 key = load_key(bio_err, keyfile, keyform, 0, passin, e,
 764                                "signing key file");
 765                 if (!key)
 766                         goto end;
 767                 }
 768
 769         if (infile)
 770                 {
 771                 if (!(in = BIO_new_file(infile, inmode)))
 772                         {
 773                         BIO_printf (bio_err,
 774                                  "Can't open input file %s\n", infile);
 775                         goto end;
 776                         }
 777                 }
 778         else
 779                 in = BIO_new_fp(stdin, BIO_NOCLOSE);
 780
 781         if (operation & SMIME_IP)
 782                 {
 783                 if (informat == FORMAT_SMIME)
 784                         cms = SMIME_read_CMS(in, &indata);
 785                 else if (informat == FORMAT_PEM)
 786                         cms = PEM_read_bio_CMS(in, NULL, NULL, NULL);
 787                 else if (informat == FORMAT_ASN1)
 788                         cms = d2i_CMS_bio(in, NULL);
 789                 else
 790                         {
 791                         BIO_printf(bio_err, "Bad input format for CMS file\n");
 792                         goto end;
 793                         }
 794
 795                 if (!cms)
 796                         {
 797                         BIO_printf(bio_err, "Error reading S/MIME message\n");
 798                         goto end;
 799                         }
 800                 if (contfile)
 801                         {
 802                         BIO_free(indata);
 803                         if (!(indata = BIO_new_file(contfile, "rb")))
 804                                 {
 805                                 BIO_printf(bio_err, "Can't read content file %s\n", contfile);
 806                                 goto end;
 807                                 }
 808                         }
 809                 if (certsoutfile)
 810                         {
 811                         STACK_OF(X509) *allcerts;
 812                         allcerts = CMS_get1_certs(cms);
 813                         if (!save_certs(certsoutfile, allcerts))
 814                                 {
 815                                 BIO_printf(bio_err,
 816                                                 "Error writing certs to %s\n",
 817                                                                 certsoutfile);
 818                                 ret = 5;
 819                                 goto end;
 820                                 }
 821                         sk_X509_pop_free(allcerts, X509_free);
 822                         }
 823                 }
 824
 825         if (rctfile)
 826                 {
 827                 char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r";
 828                 if (!(rctin = BIO_new_file(rctfile, rctmode)))
 829                         {
 830                         BIO_printf (bio_err,
 831                                  "Can't open receipt file %s\n", rctfile);
 832                         goto end;
 833                         }
 834
 835                 if (rctformat == FORMAT_SMIME)
 836                         rcms = SMIME_read_CMS(rctin, NULL);
 837                 else if (rctformat == FORMAT_PEM)
 838                         rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
 839                 else if (rctformat == FORMAT_ASN1)
 840                         rcms = d2i_CMS_bio(rctin, NULL);
 841                 else
 842                         {
 843                         BIO_printf(bio_err, "Bad input format for receipt\n");
 844                         goto end;
 845                         }
 846
 847                 if (!rcms)
 848                         {
 849                         BIO_printf(bio_err, "Error reading receipt\n");
 850                         goto end;
 851                         }
 852                 }
 853
 854         if (outfile)
 855                 {
 856                 if (!(out = BIO_new_file(outfile, outmode)))
 857                         {
 858                         BIO_printf (bio_err,
 859                                  "Can't open output file %s\n", outfile);
 860                         goto end;
 861                         }
 862                 }
 863         else
 864                 {
 865                 out = BIO_new_fp(stdout, BIO_NOCLOSE);
 866 #ifdef OPENSSL_SYS_VMS
 867                 {
 868                     BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 869                     out = BIO_push(tmpbio, out);
 870                 }
 871 #endif
 872                 }
 873
 874         if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT))
 875                 {
 876                 if (!(store = setup_verify(bio_err, CAfile, CApath)))
 877                         goto end;
 878                 X509_STORE_set_verify_cb_func(store, cms_cb);
 879                 if (vpm)
 880                         X509_STORE_set1_param(store, vpm);
 881                 }
 882
 883
 884         ret = 3;
 885
 886         if (operation == SMIME_DATA_CREATE)
 887                 {
 888                 cms = CMS_data_create(in, flags);
 889                 }
 890         else if (operation == SMIME_DIGEST_CREATE)
 891                 {
 892                 cms = CMS_digest_create(in, sign_md, flags);
 893                 }
 894         else if (operation == SMIME_COMPRESS)
 895                 {
 896                 cms = CMS_compress(in, -1, flags);
 897                 }
 898         else if (operation == SMIME_ENCRYPT)
 899                 {
 900                 flags |= CMS_PARTIAL;
 901                 cms = CMS_encrypt(encerts, in, cipher, flags);
 902                 if (!cms)
 903                         goto end;
 904                 if (secret_key)
 905                         {
 906                         if (!CMS_add0_recipient_key(cms, NID_undef,
 907                                                 secret_key, secret_keylen,
 908                                                 secret_keyid, secret_keyidlen,
 909                                                 NULL, NULL, NULL))
 910                                 goto end;
 911                         /* NULL these because call absorbs them */
 912                         secret_key = NULL;
 913                         secret_keyid = NULL;
 914                         }
 915                 if (!(flags & CMS_STREAM))
 916                         {
 917                         if (!CMS_final(cms, in, NULL, flags))
 918                                 goto end;
 919                         }
 920                 }
 921         else if (operation == SMIME_ENCRYPTED_ENCRYPT)
 922                 {
 923                 cms = CMS_EncryptedData_encrypt(in, cipher,
 924                                                 secret_key, secret_keylen,
 925                                                 flags);
 926
 927                 }
 928         else if (operation == SMIME_SIGN_RECEIPT)
 929                 {
 930                 CMS_ContentInfo *srcms = NULL;
 931                 STACK_OF(CMS_SignerInfo) *sis;
 932                 CMS_SignerInfo *si;
 933                 sis = CMS_get0_SignerInfos(cms);
 934                 if (!sis)
 935                         goto end;
 936                 si = sk_CMS_SignerInfo_value(sis, 0);
 937                 srcms = CMS_sign_receipt(si, signer, key, other, flags);
 938                 if (!srcms)
 939                         goto end;
 940                 CMS_ContentInfo_free(cms);
 941                 cms = srcms;
 942                 }
 943         else if (operation & SMIME_SIGNERS)
 944                 {
 945                 int i;
 946                 /* If detached data content we enable streaming if
 947                  * S/MIME output format.
 948                  */
 949                 if (operation == SMIME_SIGN)
 950                         {
 951
 952                         if (flags & CMS_DETACHED)
 953                                 {
 954                                 if (outformat == FORMAT_SMIME)
 955                                         flags |= CMS_STREAM;
 956                                 }
 957                         flags |= CMS_PARTIAL;
 958                         cms = CMS_sign(NULL, NULL, other, in, flags);
 959                         if (!cms)
 960                                 goto end;
 961                         if (econtent_type)
 962                                 CMS_set1_eContentType(cms, econtent_type);
 963
 964                         if (rr_to)
 965                                 {
 966                                 rr = make_receipt_request(rr_to, rr_allorfirst,
 967                                                                 rr_from);
 968                                 if (!rr)
 969                                         {
 970                                         BIO_puts(bio_err,
 971                                 "Signed Receipt Request Creation Error\n");
 972                                         goto end;
 973                                         }
 974                                 }
 975                         }
 976                 else
 977                         flags |= CMS_REUSE_DIGEST;
 978                 for (i = 0; i < sk_num(sksigners); i++)
 979                         {
 980                         CMS_SignerInfo *si;
 981                         signerfile = sk_value(sksigners, i);
 982                         keyfile = sk_value(skkeys, i);
 983                         signer = load_cert(bio_err, signerfile,FORMAT_PEM, NULL,
 984                                         e, "signer certificate");
 985                         if (!signer)
 986                                 goto end;
 987                         key = load_key(bio_err, keyfile, keyform, 0, passin, e,
 988                                "signing key file");
 989                         if (!key)
 990                                 goto end;
 991                         si = CMS_add1_signer(cms, signer, key, sign_md, flags);
 992                         if (!si)
 993                                 goto end;
 994                         if (rr && !CMS_add1_ReceiptRequest(si, rr))
 995                                 goto end;
 996                         X509_free(signer);
 997                         signer = NULL;
 998                         EVP_PKEY_free(key);
 999                         key = NULL;
1000                         }
1001                 /* If not streaming or resigning finalize structure */
1002                 if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM))
1003                         {
1004                         if (!CMS_final(cms, in, NULL, flags))
1005                                 goto end;
1006                         }
1007                 }
1008
1009         if (!cms)
1010                 {
1011                 BIO_printf(bio_err, "Error creating CMS structure\n");
1012                 goto end;
1013                 }
1014
1015         ret = 4;
1016         if (operation == SMIME_DECRYPT)
1017                 {
1018                 if (flags & CMS_DEBUG_DECRYPT)
1019                         CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
1020
1021                 if (secret_key)
1022                         {
1023                         if (!CMS_decrypt_set1_key(cms,
1024                                                 secret_key, secret_keylen,
1025                                                 secret_keyid, secret_keyidlen))
1026                                 {
1027                                 BIO_puts(bio_err,
1028                                         "Error decrypting CMS using secret key\n");
1029                                 goto end;
1030                                 }
1031                         }
1032
1033                 if (key)
1034                         {
1035                         if (!CMS_decrypt_set1_pkey(cms, key, recip))
1036                                 {
1037                                 BIO_puts(bio_err,
1038                                         "Error decrypting CMS using private key\n");
1039                                 goto end;
1040                                 }
1041                         }
1042
1043                 if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags))
1044                         {
1045                         BIO_printf(bio_err, "Error decrypting CMS structure\n");
1046                         goto end;
1047                         }
1048                 }
1049         else if (operation == SMIME_DATAOUT)
1050                 {
1051                 if (!CMS_data(cms, out, flags))
1052                         goto end;
1053                 }
1054         else if (operation == SMIME_UNCOMPRESS)
1055                 {
1056                 if (!CMS_uncompress(cms, indata, out, flags))
1057                         goto end;
1058                 }
1059         else if (operation == SMIME_DIGEST_VERIFY)
1060                 {
1061                 if (CMS_digest_verify(cms, indata, out, flags) > 0)
1062                         BIO_printf(bio_err, "Verification successful\n");
1063                 else
1064                         {
1065                         BIO_printf(bio_err, "Verification failure\n");
1066                         goto end;
1067                         }
1068                 }
1069         else if (operation == SMIME_ENCRYPTED_DECRYPT)
1070                 {
1071                 if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
1072                                                 indata, out, flags))
1073                         goto end;
1074                 }
1075         else if (operation == SMIME_VERIFY)
1076                 {
1077                 if (CMS_verify(cms, other, store, indata, out, flags) > 0)
1078                         BIO_printf(bio_err, "Verification successful\n");
1079                 else
1080                         {
1081                         BIO_printf(bio_err, "Verification failure\n");
1082                         goto end;
1083                         }
1084                 if (signerfile)
1085                         {
1086                         STACK_OF(X509) *signers;
1087                         signers = CMS_get0_signers(cms);
1088                         if (!save_certs(signerfile, signers))
1089                                 {
1090                                 BIO_printf(bio_err,
1091                                                 "Error writing signers to %s\n",
1092                                                                 signerfile);
1093                                 ret = 5;
1094                                 goto end;
1095                                 }
1096                         sk_X509_free(signers);
1097                         }
1098                 if (rr_print)
1099                         receipt_request_print(bio_err, cms);
1100
1101                 }
1102         else if (operation == SMIME_VERIFY_RECEIPT)
1103                 {
1104                 if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0)
1105                         BIO_printf(bio_err, "Verification successful\n");
1106                 else
1107                         {
1108                         BIO_printf(bio_err, "Verification failure\n");
1109                         goto end;
1110                         }
1111                 }
1112         else
1113                 {
1114                 if (outformat == FORMAT_SMIME)
1115                         {
1116                         if (to)
1117                                 BIO_printf(out, "To: %s\n", to);
1118                         if (from)
1119                                 BIO_printf(out, "From: %s\n", from);
1120                         if (subject)
1121                                 BIO_printf(out, "Subject: %s\n", subject);
1122                         if (operation == SMIME_RESIGN)
1123                                 ret = SMIME_write_CMS(out, cms, indata, flags);
1124                         else
1125                                 ret = SMIME_write_CMS(out, cms, in, flags);
1126                         }
1127                 else if (outformat == FORMAT_PEM)
1128                         ret = PEM_write_bio_CMS(out, cms);
1129                 else if (outformat == FORMAT_ASN1)
1130                         ret = i2d_CMS_bio(out,cms);
1131                 else
1132                         {
1133                         BIO_printf(bio_err, "Bad output format for CMS file\n");
1134                         goto end;
1135                         }
1136                 if (ret <= 0)
1137                         {
1138                         ret = 6;
1139                         goto end;
1140                         }
1141                 }
1142         ret = 0;
1143 end:
1144         if (ret)
1145                 ERR_print_errors(bio_err);
1146         if (need_rand)
1147                 app_RAND_write_file(NULL, bio_err);
1148         sk_X509_pop_free(encerts, X509_free);
1149         sk_X509_pop_free(other, X509_free);
1150         if (vpm)
1151                 X509_VERIFY_PARAM_free(vpm);
1152         if (sksigners)
1153                 sk_free(sksigners);
1154         if (skkeys)
1155                 sk_free(skkeys);
1156         if (secret_key)
1157                 OPENSSL_free(secret_key);
1158         if (secret_keyid)
1159                 OPENSSL_free(secret_keyid);
1160         if (econtent_type)
1161                 ASN1_OBJECT_free(econtent_type);
1162         if (rr)
1163                 CMS_ReceiptRequest_free(rr);
1164         if (rr_to)
1165                 sk_free(rr_to);
1166         if (rr_from)
1167                 sk_free(rr_from);
1168         X509_STORE_free(store);
1169         X509_free(cert);
1170         X509_free(recip);
1171         X509_free(signer);
1172         EVP_PKEY_free(key);
1173         CMS_ContentInfo_free(cms);
1174         CMS_ContentInfo_free(rcms);
1175         BIO_free(rctin);
1176         BIO_free(in);
1177         BIO_free(indata);
1178         BIO_free_all(out);
1179         if (passin) OPENSSL_free(passin);
1180         return (ret);
1181 }
1182
1183 static int save_certs(char *signerfile, STACK_OF(X509) *signers)
1184         {
1185         int i;
1186         BIO *tmp;
1187         if (!signerfile)
1188                 return 1;
1189         tmp = BIO_new_file(signerfile, "w");
1190         if (!tmp) return 0;
1191         for(i = 0; i < sk_X509_num(signers); i++)
1192                 PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
1193         BIO_free(tmp);
1194         return 1;
1195         }
1196
1197
1198 /* Minimal callback just to output policy info (if any) */
1199
1200 static int cms_cb(int ok, X509_STORE_CTX *ctx)
1201         {
1202         int error;
1203
1204         error = X509_STORE_CTX_get_error(ctx);
1205
1206         if ((error != X509_V_ERR_NO_EXPLICIT_POLICY)
1207                 && ((error != X509_V_OK) || (ok != 2)))
1208                 return ok;
1209
1210         policies_print(NULL, ctx);
1211
1212         return ok;
1213
1214         }
1215
1216 static void gnames_stack_print(BIO *out, STACK_OF(GENERAL_NAMES) *gns)
1217         {
1218         STACK_OF(GENERAL_NAME) *gens;
1219         GENERAL_NAME *gen;
1220         int i, j;
1221         for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++)
1222                 {
1223                 gens = sk_GENERAL_NAMES_value(gns, i);
1224                 for (j = 0; j < sk_GENERAL_NAME_num(gens); j++)
1225                         {
1226                         gen = sk_GENERAL_NAME_value(gens, j);
1227                         BIO_puts(out, "    ");
1228                         GENERAL_NAME_print(out, gen);
1229                         BIO_puts(out, "\n");
1230                         }
1231                 }
1232         return;
1233         }
1234
1235 static void receipt_request_print(BIO *out, CMS_ContentInfo *cms)
1236         {
1237         STACK_OF(CMS_SignerInfo) *sis;
1238         CMS_SignerInfo *si;
1239         CMS_ReceiptRequest *rr;
1240         int allorfirst;
1241         STACK_OF(GENERAL_NAMES) *rto, *rlist;
1242         ASN1_STRING *scid;
1243         int i, rv;
1244         sis = CMS_get0_SignerInfos(cms);
1245         for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++)
1246                 {
1247                 si = sk_CMS_SignerInfo_value(sis, i);
1248                 rv = CMS_get1_ReceiptRequest(si, &rr);
1249                 BIO_printf(bio_err, "Signer %d:\n", i + 1);
1250                 if (rv == 0)
1251                         BIO_puts(bio_err, "  No Receipt Request\n");
1252                 else if (rv < 0)
1253                         {
1254                         BIO_puts(bio_err, "  Receipt Request Parse Error\n");
1255                         ERR_print_errors(bio_err);
1256                         }
1257                 else
1258                         {
1259                         char *id;
1260                         int idlen;
1261                         CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
1262                                                         &rlist, &rto);
1263                         BIO_puts(out, "  Signed Content ID:\n");
1264                         idlen = ASN1_STRING_length(scid);
1265                         id = (char *)ASN1_STRING_data(scid);
1266                         BIO_dump_indent(out, id, idlen, 4);
1267                         BIO_puts(out, "  Receipts From");
1268                         if (rlist)
1269                                 {
1270                                 BIO_puts(out, " List:\n");
1271                                 gnames_stack_print(out, rlist);
1272                                 }
1273                         else if (allorfirst == 1)
1274                                 BIO_puts(out, ": First Tier\n");
1275                         else if (allorfirst == 0)
1276                                 BIO_puts(out, ": All\n");
1277                         else
1278                                 BIO_printf(out, " Unknown (%d)\n", allorfirst);
1279                         BIO_puts(out, "  Receipts To:\n");
1280                         gnames_stack_print(out, rto);
1281                         }
1282                 if (rr)
1283                         CMS_ReceiptRequest_free(rr);
1284                 }
1285         }
1286
1287 static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK *ns)
1288         {
1289         int i;
1290         STACK_OF(GENERAL_NAMES) *ret;
1291         GENERAL_NAMES *gens = NULL;
1292         GENERAL_NAME *gen = NULL;
1293         ret = sk_GENERAL_NAMES_new_null();
1294         if (!ret)
1295                 goto err;
1296         for (i = 0; i < sk_num(ns); i++)
1297                 {
1298                 CONF_VALUE cnf;
1299                 cnf.name = "email";
1300                 cnf.value = sk_value(ns, i);
1301                 gen = v2i_GENERAL_NAME(NULL, NULL, &cnf);
1302                 if (!gen)
1303                         goto err;
1304                 gens = GENERAL_NAMES_new();
1305                 if (!gens)
1306                         goto err;
1307                 if (!sk_GENERAL_NAME_push(gens, gen))
1308                         goto err;
1309                 gen = NULL;
1310                 if (!sk_GENERAL_NAMES_push(ret, gens))
1311                         goto err;
1312                 gens = NULL;
1313                 }
1314
1315         return ret;
1316
1317         err:
1318         if (ret)
1319                 sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
1320         if (gens)
1321                 GENERAL_NAMES_free(gens);
1322         if (gen)
1323                 GENERAL_NAME_free(gen);
1324         return NULL;
1325         }
1326
1327
1328 static CMS_ReceiptRequest *make_receipt_request(STACK *rr_to, int rr_allorfirst,
1329                                                                 STACK *rr_from)
1330         {
1331         STACK_OF(GENERAL_NAMES) *rct_to, *rct_from;
1332         CMS_ReceiptRequest *rr;
1333         rct_to = make_names_stack(rr_to);
1334         if (!rct_to)
1335                 goto err;
1336         if (rr_from)
1337                 {
1338                 rct_from = make_names_stack(rr_from);
1339                 if (!rct_from)
1340                         goto err;
1341                 }
1342         else
1343                 rct_from = NULL;
1344         rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from,
1345                                                 rct_to);
1346         return rr;
1347         err:
1348         return NULL;
1349         }
1350
1351 #endif