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, noout = 0, print = 0;
 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, "-text"))
 230                                 flags |= CMS_TEXT;
 231                 else if (!strcmp (*args, "-nointern"))
 232                                 flags |= CMS_NOINTERN;
 233                 else if (!strcmp (*args, "-noverify")
 234                         || !strcmp (*args, "-no_signer_cert_verify"))
 235                                 flags |= CMS_NO_SIGNER_CERT_VERIFY;
 236                 else if (!strcmp (*args, "-nocerts"))
 237                                 flags |= CMS_NOCERTS;
 238                 else if (!strcmp (*args, "-noattr"))
 239                                 flags |= CMS_NOATTR;
 240                 else if (!strcmp (*args, "-nodetach"))
 241                                 flags &= ~CMS_DETACHED;
 242                 else if (!strcmp (*args, "-nosmimecap"))
 243                                 flags |= CMS_NOSMIMECAP;
 244                 else if (!strcmp (*args, "-binary"))
 245                                 flags |= CMS_BINARY;
 246                 else if (!strcmp (*args, "-keyid"))
 247                                 flags |= CMS_USE_KEYID;
 248                 else if (!strcmp (*args, "-nosigs"))
 249                                 flags |= CMS_NOSIGS;
 250                 else if (!strcmp (*args, "-no_content_verify"))
 251                                 flags |= CMS_NO_CONTENT_VERIFY;
 252                 else if (!strcmp (*args, "-no_attr_verify"))
 253                                 flags |= CMS_NO_ATTR_VERIFY;
 254                 else if (!strcmp (*args, "-stream"))
 255                                 flags |= CMS_STREAM;
 256                 else if (!strcmp (*args, "-indef"))
 257                                 flags |= CMS_STREAM;
 258                 else if (!strcmp (*args, "-noindef"))
 259                                 flags &= ~CMS_STREAM;
 260                 else if (!strcmp (*args, "-nooldmime"))
 261                                 flags |= CMS_NOOLDMIMETYPE;
 262                 else if (!strcmp (*args, "-crlfeol"))
 263                                 flags |= CMS_CRLFEOL;
 264                 else if (!strcmp (*args, "-noout"))
 265                                 noout = 1;
 266                 else if (!strcmp (*args, "-receipt_request_print"))
 267                                 rr_print = 1;
 268                 else if (!strcmp (*args, "-receipt_request_all"))
 269                                 rr_allorfirst = 0;
 270                 else if (!strcmp (*args, "-receipt_request_first"))
 271                                 rr_allorfirst = 1;
 272                 else if (!strcmp(*args,"-receipt_request_from"))
 273                         {
 274                         if (!args[1])
 275                                 goto argerr;
 276                         args++;
 277                         if (!rr_from)
 278                                 rr_from = sk_new_null();
 279                         sk_push(rr_from, *args);
 280                         }
 281                 else if (!strcmp(*args,"-receipt_request_to"))
 282                         {
 283                         if (!args[1])
 284                                 goto argerr;
 285                         args++;
 286                         if (!rr_to)
 287                                 rr_to = sk_new_null();
 288                         sk_push(rr_to, *args);
 289                         }
 290                 else if (!strcmp (*args, "-print"))
 291                                 {
 292                                 noout = 1;
 293                                 print = 1;
 294                                 }
 295                 else if (!strcmp(*args,"-secretkey"))
 296                         {
 297                         long ltmp;
 298                         if (!args[1])
 299                                 goto argerr;
 300                         args++;
 301                         secret_key = string_to_hex(*args, &ltmp);
 302                         if (!secret_key)
 303                                 {
 304                                 BIO_printf(bio_err, "Invalid key %s\n", *args);
 305                                 goto argerr;
 306                                 }
 307                         secret_keylen = (size_t)ltmp;
 308                         }
 309                 else if (!strcmp(*args,"-secretkeyid"))
 310                         {
 311                         long ltmp;
 312                         if (!args[1])
 313                                 goto argerr;
 314                         args++;
 315                         secret_keyid = string_to_hex(*args, &ltmp);
 316                         if (!secret_keyid)
 317                                 {
 318                                 BIO_printf(bio_err, "Invalid id %s\n", *args);
 319                                 goto argerr;
 320                                 }
 321                         secret_keyidlen = (size_t)ltmp;
 322                         }
 323                 else if (!strcmp(*args,"-econtent_type"))
 324                         {
 325                         if (!args[1])
 326                                 goto argerr;
 327                         args++;
 328                         econtent_type = OBJ_txt2obj(*args, 0);
 329                         if (!econtent_type)
 330                                 {
 331                                 BIO_printf(bio_err, "Invalid OID %s\n", *args);
 332                                 goto argerr;
 333                                 }
 334                         }
 335                 else if (!strcmp(*args,"-rand"))
 336                         {
 337                         if (!args[1])
 338                                 goto argerr;
 339                         args++;
 340                         inrand = *args;
 341                         need_rand = 1;
 342                         }
 343 #ifndef OPENSSL_NO_ENGINE
 344                 else if (!strcmp(*args,"-engine"))
 345                         {
 346                         if (!args[1])
 347                                 goto argerr;
 348                         engine = *++args;
 349                         }
 350 #endif
 351                 else if (!strcmp(*args,"-passin"))
 352                         {
 353                         if (!args[1])
 354                                 goto argerr;
 355                         passargin = *++args;
 356                         }
 357                 else if (!strcmp (*args, "-to"))
 358                         {
 359                         if (!args[1])
 360                                 goto argerr;
 361                         to = *++args;
 362                         }
 363                 else if (!strcmp (*args, "-from"))
 364                         {
 365                         if (!args[1])
 366                                 goto argerr;
 367                         from = *++args;
 368                         }
 369                 else if (!strcmp (*args, "-subject"))
 370                         {
 371                         if (!args[1])
 372                                 goto argerr;
 373                         subject = *++args;
 374                         }
 375                 else if (!strcmp (*args, "-signer"))
 376                         {
 377                         if (!args[1])
 378                                 goto argerr;
 379                         /* If previous -signer argument add signer to list */
 380
 381                         if (signerfile)
 382                                 {
 383                                 if (!sksigners)
 384                                         sksigners = sk_new_null();
 385                                 sk_push(sksigners, signerfile);
 386                                 if (!keyfile)
 387                                         keyfile = signerfile;
 388                                 if (!skkeys)
 389                                         skkeys = sk_new_null();
 390                                 sk_push(skkeys, keyfile);
 391                                 keyfile = NULL;
 392                                 }
 393                         signerfile = *++args;
 394                         }
 395                 else if (!strcmp (*args, "-recip"))
 396                         {
 397                         if (!args[1])
 398                                 goto argerr;
 399                         recipfile = *++args;
 400                         }
 401                 else if (!strcmp (*args, "-certsout"))
 402                         {
 403                         if (!args[1])
 404                                 goto argerr;
 405                         certsoutfile = *++args;
 406                         }
 407                 else if (!strcmp (*args, "-md"))
 408                         {
 409                         if (!args[1])
 410                                 goto argerr;
 411                         sign_md = EVP_get_digestbyname(*++args);
 412                         if (sign_md == NULL)
 413                                 {
 414                                 BIO_printf(bio_err, "Unknown digest %s\n",
 415                                                         *args);
 416                                 goto argerr;
 417                                 }
 418                         }
 419                 else if (!strcmp (*args, "-inkey"))
 420                         {
 421                         if (!args[1])
 422                                 goto argerr;
 423                         /* If previous -inkey arument add signer to list */
 424                         if (keyfile)
 425                                 {
 426                                 if (!signerfile)
 427                                         {
 428                                         BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 429                                         goto argerr;
 430                                         }
 431                                 if (!sksigners)
 432                                         sksigners = sk_new_null();
 433                                 sk_push(sksigners, signerfile);
 434                                 signerfile = NULL;
 435                                 if (!skkeys)
 436                                         skkeys = sk_new_null();
 437                                 sk_push(skkeys, keyfile);
 438                                 }
 439                         keyfile = *++args;
 440                         }
 441                 else if (!strcmp (*args, "-keyform"))
 442                         {
 443                         if (!args[1])
 444                                 goto argerr;
 445                         keyform = str2fmt(*++args);
 446                         }
 447                 else if (!strcmp (*args, "-rctform"))
 448                         {
 449                         if (!args[1])
 450                                 goto argerr;
 451                         rctformat = str2fmt(*++args);
 452                         }
 453                 else if (!strcmp (*args, "-certfile"))
 454                         {
 455                         if (!args[1])
 456                                 goto argerr;
 457                         certfile = *++args;
 458                         }
 459                 else if (!strcmp (*args, "-CAfile"))
 460                         {
 461                         if (!args[1])
 462                                 goto argerr;
 463                         CAfile = *++args;
 464                         }
 465                 else if (!strcmp (*args, "-CApath"))
 466                         {
 467                         if (!args[1])
 468                                 goto argerr;
 469                         CApath = *++args;
 470                         }
 471                 else if (!strcmp (*args, "-in"))
 472                         {
 473                         if (!args[1])
 474                                 goto argerr;
 475                         infile = *++args;
 476                         }
 477                 else if (!strcmp (*args, "-inform"))
 478                         {
 479                         if (!args[1])
 480                                 goto argerr;
 481                         informat = str2fmt(*++args);
 482                         }
 483                 else if (!strcmp (*args, "-outform"))
 484                         {
 485                         if (!args[1])
 486                                 goto argerr;
 487                         outformat = str2fmt(*++args);
 488                         }
 489                 else if (!strcmp (*args, "-out"))
 490                         {
 491                         if (!args[1])
 492                                 goto argerr;
 493                         outfile = *++args;
 494                         }
 495                 else if (!strcmp (*args, "-content"))
 496                         {
 497                         if (!args[1])
 498                                 goto argerr;
 499                         contfile = *++args;
 500                         }
 501                 else if (args_verify(&args, NULL, &badarg, bio_err, &vpm))
 502                         continue;
 503                 else if ((cipher = EVP_get_cipherbyname(*args + 1)) == NULL)
 504                         badarg = 1;
 505                 args++;
 506                 }
 507
 508         if (((rr_allorfirst != -1) || rr_from) && !rr_to)
 509                 {
 510                 BIO_puts(bio_err, "No Signed Receipts Recipients\n");
 511                 goto argerr;
 512                 }
 513
 514         if (!(operation & SMIME_SIGNERS)  && (rr_to || rr_from))
 515                 {
 516                 BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
 517                 goto argerr;
 518                 }
 519         if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners))
 520                 {
 521                 BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
 522                 goto argerr;
 523                 }
 524
 525         if (operation & SMIME_SIGNERS)
 526                 {
 527                 if (keyfile && !signerfile)
 528                         {
 529                         BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 530                         goto argerr;
 531                         }
 532                 /* Check to see if any final signer needs to be appended */
 533                 if (signerfile)
 534                         {
 535                         if (!sksigners)
 536                                 sksigners = sk_new_null();
 537                         sk_push(sksigners, signerfile);
 538                         if (!skkeys)
 539                                 skkeys = sk_new_null();
 540                         if (!keyfile)
 541                                 keyfile = signerfile;
 542                         sk_push(skkeys, keyfile);
 543                         }
 544                 if (!sksigners)
 545                         {
 546                         BIO_printf(bio_err, "No signer certificate specified\n");
 547                         badarg = 1;
 548                         }
 549                 signerfile = NULL;
 550                 keyfile = NULL;
 551                 need_rand = 1;
 552                 }
 553
 554         else if (operation == SMIME_DECRYPT)
 555                 {
 556                 if (!recipfile && !keyfile && !secret_key)
 557                         {
 558                         BIO_printf(bio_err, "No recipient certificate or key specified\n");
 559                         badarg = 1;
 560                         }
 561                 }
 562         else if (operation == SMIME_ENCRYPT)
 563                 {
 564                 if (!*args && !secret_key)
 565                         {
 566                         BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
 567                         badarg = 1;
 568                         }
 569                 need_rand = 1;
 570                 }
 571         else if (!operation)
 572                 badarg = 1;
 573
 574         if (badarg)
 575                 {
 576                 argerr:
 577                 BIO_printf (bio_err, "Usage cms [options] cert.pem ...\n");
 578                 BIO_printf (bio_err, "where options are\n");
 579                 BIO_printf (bio_err, "-encrypt       encrypt message\n");
 580                 BIO_printf (bio_err, "-decrypt       decrypt encrypted message\n");
 581                 BIO_printf (bio_err, "-sign          sign message\n");
 582                 BIO_printf (bio_err, "-verify        verify signed message\n");
 583                 BIO_printf (bio_err, "-cmsout        output CMS structure\n");
 584 #ifndef OPENSSL_NO_DES
 585                 BIO_printf (bio_err, "-des3          encrypt with triple DES\n");
 586                 BIO_printf (bio_err, "-des           encrypt with DES\n");
 587 #endif
 588 #ifndef OPENSSL_NO_SEED
 589                 BIO_printf (bio_err, "-seed          encrypt with SEED\n");
 590 #endif
 591 #ifndef OPENSSL_NO_RC2
 592                 BIO_printf (bio_err, "-rc2-40        encrypt with RC2-40 (default)\n");
 593                 BIO_printf (bio_err, "-rc2-64        encrypt with RC2-64\n");
 594                 BIO_printf (bio_err, "-rc2-128       encrypt with RC2-128\n");
 595 #endif
 596 #ifndef OPENSSL_NO_AES
 597                 BIO_printf (bio_err, "-aes128, -aes192, -aes256\n");
 598                 BIO_printf (bio_err, "               encrypt PEM output with cbc aes\n");
 599 #endif
 600 #ifndef OPENSSL_NO_CAMELLIA
 601                 BIO_printf (bio_err, "-camellia128, -camellia192, -camellia256\n");
 602                 BIO_printf (bio_err, "               encrypt PEM output with cbc camellia\n");
 603 #endif
 604                 BIO_printf (bio_err, "-nointern      don't search certificates in message for signer\n");
 605                 BIO_printf (bio_err, "-nosigs        don't verify message signature\n");
 606                 BIO_printf (bio_err, "-noverify      don't verify signers certificate\n");
 607                 BIO_printf (bio_err, "-nocerts       don't include signers certificate when signing\n");
 608                 BIO_printf (bio_err, "-nodetach      use opaque signing\n");
 609                 BIO_printf (bio_err, "-noattr        don't include any signed attributes\n");
 610                 BIO_printf (bio_err, "-binary        don't translate message to text\n");
 611                 BIO_printf (bio_err, "-certfile file other certificates file\n");
 612                 BIO_printf (bio_err, "-certsout file certificate output file\n");
 613                 BIO_printf (bio_err, "-signer file   signer certificate file\n");
 614                 BIO_printf (bio_err, "-recip  file   recipient certificate file for decryption\n");
 615                 BIO_printf (bio_err, "-skeyid        use subject key identifier\n");
 616                 BIO_printf (bio_err, "-in file       input file\n");
 617                 BIO_printf (bio_err, "-inform arg    input format SMIME (default), PEM or DER\n");
 618                 BIO_printf (bio_err, "-inkey file    input private key (if not signer or recipient)\n");
 619                 BIO_printf (bio_err, "-keyform arg   input private key format (PEM or ENGINE)\n");
 620                 BIO_printf (bio_err, "-out file      output file\n");
 621                 BIO_printf (bio_err, "-outform arg   output format SMIME (default), PEM or DER\n");
 622                 BIO_printf (bio_err, "-content file  supply or override content for detached signature\n");
 623                 BIO_printf (bio_err, "-to addr       to address\n");
 624                 BIO_printf (bio_err, "-from ad       from address\n");
 625                 BIO_printf (bio_err, "-subject s     subject\n");
 626                 BIO_printf (bio_err, "-text          include or delete text MIME headers\n");
 627                 BIO_printf (bio_err, "-CApath dir    trusted certificates directory\n");
 628                 BIO_printf (bio_err, "-CAfile file   trusted certificates file\n");
 629                 BIO_printf (bio_err, "-crl_check     check revocation status of signer's certificate using CRLs\n");
 630                 BIO_printf (bio_err, "-crl_check_all check revocation status of signer's certificate chain using CRLs\n");
 631 #ifndef OPENSSL_NO_ENGINE
 632                 BIO_printf (bio_err, "-engine e      use engine e, possibly a hardware device.\n");
 633 #endif
 634                 BIO_printf (bio_err, "-passin arg    input file pass phrase source\n");
 635                 BIO_printf(bio_err,  "-rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 636                 BIO_printf(bio_err,  "               load the file (or the files in the directory) into\n");
 637                 BIO_printf(bio_err,  "               the random number generator\n");
 638                 BIO_printf (bio_err, "cert.pem       recipient certificate(s) for encryption\n");
 639                 goto end;
 640                 }
 641
 642 #ifndef OPENSSL_NO_ENGINE
 643         e = setup_engine(bio_err, engine, 0);
 644 #endif
 645
 646         if (!app_passwd(bio_err, passargin, NULL, &passin, NULL))
 647                 {
 648                 BIO_printf(bio_err, "Error getting password\n");
 649                 goto end;
 650                 }
 651
 652         if (need_rand)
 653                 {
 654                 app_RAND_load_file(NULL, bio_err, (inrand != NULL));
 655                 if (inrand != NULL)
 656                         BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 657                                 app_RAND_load_files(inrand));
 658                 }
 659
 660         ret = 2;
 661
 662         if (!(operation & SMIME_SIGNERS))
 663                 flags &= ~CMS_DETACHED;
 664
 665         if (operation & SMIME_OP)
 666                 {
 667                 if (outformat == FORMAT_ASN1)
 668                         outmode = "wb";
 669                 }
 670         else
 671                 {
 672                 if (flags & CMS_BINARY)
 673                         outmode = "wb";
 674                 }
 675
 676         if (operation & SMIME_IP)
 677                 {
 678                 if (informat == FORMAT_ASN1)
 679                         inmode = "rb";
 680                 }
 681         else
 682                 {
 683                 if (flags & CMS_BINARY)
 684                         inmode = "rb";
 685                 }
 686
 687         if (operation == SMIME_ENCRYPT)
 688                 {
 689                 if (!cipher)
 690                         {
 691 #ifndef OPENSSL_NO_DES
 692                         cipher = EVP_des_ede3_cbc();
 693 #else
 694                         BIO_printf(bio_err, "No cipher selected\n");
 695                         goto end;
 696 #endif
 697                         }
 698
 699                 if (secret_key && !secret_keyid)
 700                         {
 701                         BIO_printf(bio_err, "No sectre key id\n");
 702                         goto end;
 703                         }
 704
 705                 if (*args)
 706                         encerts = sk_X509_new_null();
 707                 while (*args)
 708                         {
 709                         if (!(cert = load_cert(bio_err,*args,FORMAT_PEM,
 710                                 NULL, e, "recipient certificate file")))
 711                                 goto end;
 712                         sk_X509_push(encerts, cert);
 713                         cert = NULL;
 714                         args++;
 715                         }
 716                 }
 717
 718         if (certfile)
 719                 {
 720                 if (!(other = load_certs(bio_err,certfile,FORMAT_PEM, NULL,
 721                         e, "certificate file")))
 722                         {
 723                         ERR_print_errors(bio_err);
 724                         goto end;
 725                         }
 726                 }
 727
 728         if (recipfile && (operation == SMIME_DECRYPT))
 729                 {
 730                 if (!(recip = load_cert(bio_err,recipfile,FORMAT_PEM,NULL,
 731                         e, "recipient certificate file")))
 732                         {
 733                         ERR_print_errors(bio_err);
 734                         goto end;
 735                         }
 736                 }
 737
 738         if (operation == SMIME_SIGN_RECEIPT)
 739                 {
 740                 if (!(signer = load_cert(bio_err,signerfile,FORMAT_PEM,NULL,
 741                         e, "receipt signer certificate file")))
 742                         {
 743                         ERR_print_errors(bio_err);
 744                         goto end;
 745                         }
 746                 }
 747
 748         if (operation == SMIME_DECRYPT)
 749                 {
 750                 if (!keyfile)
 751                         keyfile = recipfile;
 752                 }
 753         else if ((operation == SMIME_SIGN) || (operation == SMIME_SIGN_RECEIPT))
 754                 {
 755                 if (!keyfile)
 756                         keyfile = signerfile;
 757                 }
 758         else keyfile = NULL;
 759
 760         if (keyfile)
 761                 {
 762                 key = load_key(bio_err, keyfile, keyform, 0, passin, e,
 763                                "signing key file");
 764                 if (!key)
 765                         goto end;
 766                 }
 767
 768         if (infile)
 769                 {
 770                 if (!(in = BIO_new_file(infile, inmode)))
 771                         {
 772                         BIO_printf (bio_err,
 773                                  "Can't open input file %s\n", infile);
 774                         goto end;
 775                         }
 776                 }
 777         else
 778                 in = BIO_new_fp(stdin, BIO_NOCLOSE);
 779
 780         if (operation & SMIME_IP)
 781                 {
 782                 if (informat == FORMAT_SMIME)
 783                         cms = SMIME_read_CMS(in, &indata);
 784                 else if (informat == FORMAT_PEM)
 785                         cms = PEM_read_bio_CMS(in, NULL, NULL, NULL);
 786                 else if (informat == FORMAT_ASN1)
 787                         cms = d2i_CMS_bio(in, NULL);
 788                 else
 789                         {
 790                         BIO_printf(bio_err, "Bad input format for CMS file\n");
 791                         goto end;
 792                         }
 793
 794                 if (!cms)
 795                         {
 796                         BIO_printf(bio_err, "Error reading S/MIME message\n");
 797                         goto end;
 798                         }
 799                 if (contfile)
 800                         {
 801                         BIO_free(indata);
 802                         if (!(indata = BIO_new_file(contfile, "rb")))
 803                                 {
 804                                 BIO_printf(bio_err, "Can't read content file %s\n", contfile);
 805                                 goto end;
 806                                 }
 807                         }
 808                 if (certsoutfile)
 809                         {
 810                         STACK_OF(X509) *allcerts;
 811                         allcerts = CMS_get1_certs(cms);
 812                         if (!save_certs(certsoutfile, allcerts))
 813                                 {
 814                                 BIO_printf(bio_err,
 815                                                 "Error writing certs to %s\n",
 816                                                                 certsoutfile);
 817                                 ret = 5;
 818                                 goto end;
 819                                 }
 820                         sk_X509_pop_free(allcerts, X509_free);
 821                         }
 822                 }
 823
 824         if (rctfile)
 825                 {
 826                 char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r";
 827                 if (!(rctin = BIO_new_file(rctfile, rctmode)))
 828                         {
 829                         BIO_printf (bio_err,
 830                                  "Can't open receipt file %s\n", rctfile);
 831                         goto end;
 832                         }
 833
 834                 if (rctformat == FORMAT_SMIME)
 835                         rcms = SMIME_read_CMS(rctin, NULL);
 836                 else if (rctformat == FORMAT_PEM)
 837                         rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
 838                 else if (rctformat == FORMAT_ASN1)
 839                         rcms = d2i_CMS_bio(rctin, NULL);
 840                 else
 841                         {
 842                         BIO_printf(bio_err, "Bad input format for receipt\n");
 843                         goto end;
 844                         }
 845
 846                 if (!rcms)
 847                         {
 848                         BIO_printf(bio_err, "Error reading receipt\n");
 849                         goto end;
 850                         }
 851                 }
 852
 853         if (outfile)
 854                 {
 855                 if (!(out = BIO_new_file(outfile, outmode)))
 856                         {
 857                         BIO_printf (bio_err,
 858                                  "Can't open output file %s\n", outfile);
 859                         goto end;
 860                         }
 861                 }
 862         else
 863                 {
 864                 out = BIO_new_fp(stdout, BIO_NOCLOSE);
 865 #ifdef OPENSSL_SYS_VMS
 866                 {
 867                     BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 868                     out = BIO_push(tmpbio, out);
 869                 }
 870 #endif
 871                 }
 872
 873         if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT))
 874                 {
 875                 if (!(store = setup_verify(bio_err, CAfile, CApath)))
 876                         goto end;
 877                 X509_STORE_set_verify_cb_func(store, cms_cb);
 878                 if (vpm)
 879                         X509_STORE_set1_param(store, vpm);
 880                 }
 881
 882
 883         ret = 3;
 884
 885         if (operation == SMIME_DATA_CREATE)
 886                 {
 887                 cms = CMS_data_create(in, flags);
 888                 }
 889         else if (operation == SMIME_DIGEST_CREATE)
 890                 {
 891                 cms = CMS_digest_create(in, sign_md, flags);
 892                 }
 893         else if (operation == SMIME_COMPRESS)
 894                 {
 895                 cms = CMS_compress(in, -1, flags);
 896                 }
 897         else if (operation == SMIME_ENCRYPT)
 898                 {
 899                 flags |= CMS_PARTIAL;
 900                 cms = CMS_encrypt(encerts, in, cipher, flags);
 901                 if (!cms)
 902                         goto end;
 903                 if (secret_key)
 904                         {
 905                         if (!CMS_add0_recipient_key(cms, NID_undef,
 906                                                 secret_key, secret_keylen,
 907                                                 secret_keyid, secret_keyidlen,
 908                                                 NULL, NULL, NULL))
 909                                 goto end;
 910                         /* NULL these because call absorbs them */
 911                         secret_key = NULL;
 912                         secret_keyid = NULL;
 913                         }
 914                 if (!(flags & CMS_STREAM))
 915                         {
 916                         if (!CMS_final(cms, in, NULL, flags))
 917                                 goto end;
 918                         }
 919                 }
 920         else if (operation == SMIME_ENCRYPTED_ENCRYPT)
 921                 {
 922                 cms = CMS_EncryptedData_encrypt(in, cipher,
 923                                                 secret_key, secret_keylen,
 924                                                 flags);
 925
 926                 }
 927         else if (operation == SMIME_SIGN_RECEIPT)
 928                 {
 929                 CMS_ContentInfo *srcms = NULL;
 930                 STACK_OF(CMS_SignerInfo) *sis;
 931                 CMS_SignerInfo *si;
 932                 sis = CMS_get0_SignerInfos(cms);
 933                 if (!sis)
 934                         goto end;
 935                 si = sk_CMS_SignerInfo_value(sis, 0);
 936                 srcms = CMS_sign_receipt(si, signer, key, other, flags);
 937                 if (!srcms)
 938                         goto end;
 939                 CMS_ContentInfo_free(cms);
 940                 cms = srcms;
 941                 }
 942         else if (operation & SMIME_SIGNERS)
 943                 {
 944                 int i;
 945                 /* If detached data content we enable streaming if
 946                  * S/MIME output format.
 947                  */
 948                 if (operation == SMIME_SIGN)
 949                         {
 950
 951                         if (flags & CMS_DETACHED)
 952                                 {
 953                                 if (outformat == FORMAT_SMIME)
 954                                         flags |= CMS_STREAM;
 955                                 }
 956                         flags |= CMS_PARTIAL;
 957                         cms = CMS_sign(NULL, NULL, other, in, flags);
 958                         if (!cms)
 959                                 goto end;
 960                         if (econtent_type)
 961                                 CMS_set1_eContentType(cms, econtent_type);
 962
 963                         if (rr_to)
 964                                 {
 965                                 rr = make_receipt_request(rr_to, rr_allorfirst,
 966                                                                 rr_from);
 967                                 if (!rr)
 968                                         {
 969                                         BIO_puts(bio_err,
 970                                 "Signed Receipt Request Creation Error\n");
 971                                         goto end;
 972                                         }
 973                                 }
 974                         }
 975                 else
 976                         flags |= CMS_REUSE_DIGEST;
 977                 for (i = 0; i < sk_num(sksigners); i++)
 978                         {
 979                         CMS_SignerInfo *si;
 980                         signerfile = sk_value(sksigners, i);
 981                         keyfile = sk_value(skkeys, i);
 982                         signer = load_cert(bio_err, signerfile,FORMAT_PEM, NULL,
 983                                         e, "signer certificate");
 984                         if (!signer)
 985                                 goto end;
 986                         key = load_key(bio_err, keyfile, keyform, 0, passin, e,
 987                                "signing key file");
 988                         if (!key)
 989                                 goto end;
 990                         si = CMS_add1_signer(cms, signer, key, sign_md, flags);
 991                         if (!si)
 992                                 goto end;
 993                         if (rr && !CMS_add1_ReceiptRequest(si, rr))
 994                                 goto end;
 995                         X509_free(signer);
 996                         signer = NULL;
 997                         EVP_PKEY_free(key);
 998                         key = NULL;
 999                         }
1000                 /* If not streaming or resigning finalize structure */
1001                 if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM))
1002                         {
1003                         if (!CMS_final(cms, in, NULL, flags))
1004                                 goto end;
1005                         }
1006                 }
1007
1008         if (!cms)
1009                 {
1010                 BIO_printf(bio_err, "Error creating CMS structure\n");
1011                 goto end;
1012                 }
1013
1014         ret = 4;
1015         if (operation == SMIME_DECRYPT)
1016                 {
1017
1018                 if (secret_key)
1019                         {
1020                         if (!CMS_decrypt_set1_key(cms,
1021                                                 secret_key, secret_keylen,
1022                                                 secret_keyid, secret_keyidlen))
1023                                 {
1024                                 BIO_puts(bio_err,
1025                                         "Error decrypting CMS using secret key\n");
1026                                 goto end;
1027                                 }
1028                         }
1029
1030                 if (key)
1031                         {
1032                         if (!CMS_decrypt_set1_pkey(cms, key, recip))
1033                                 {
1034                                 BIO_puts(bio_err,
1035                                         "Error decrypting CMS using private key\n");
1036                                 goto end;
1037                                 }
1038                         }
1039
1040                 if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags))
1041                         {
1042                         BIO_printf(bio_err, "Error decrypting CMS structure\n");
1043                         goto end;
1044                         }
1045                 }
1046         else if (operation == SMIME_DATAOUT)
1047                 {
1048                 if (!CMS_data(cms, out, flags))
1049                         goto end;
1050                 }
1051         else if (operation == SMIME_UNCOMPRESS)
1052                 {
1053                 if (!CMS_uncompress(cms, indata, out, flags))
1054                         goto end;
1055                 }
1056         else if (operation == SMIME_DIGEST_VERIFY)
1057                 {
1058                 if (CMS_digest_verify(cms, indata, out, flags) > 0)
1059                         BIO_printf(bio_err, "Verification successful\n");
1060                 else
1061                         {
1062                         BIO_printf(bio_err, "Verification failure\n");
1063                         goto end;
1064                         }
1065                 }
1066         else if (operation == SMIME_ENCRYPTED_DECRYPT)
1067                 {
1068                 if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
1069                                                 indata, out, flags))
1070                         goto end;
1071                 }
1072         else if (operation == SMIME_VERIFY)
1073                 {
1074                 if (CMS_verify(cms, other, store, indata, out, flags) > 0)
1075                         BIO_printf(bio_err, "Verification successful\n");
1076                 else
1077                         {
1078                         BIO_printf(bio_err, "Verification failure\n");
1079                         goto end;
1080                         }
1081                 if (signerfile)
1082                         {
1083                         STACK_OF(X509) *signers;
1084                         signers = CMS_get0_signers(cms);
1085                         if (!save_certs(signerfile, signers))
1086                                 {
1087                                 BIO_printf(bio_err,
1088                                                 "Error writing signers to %s\n",
1089                                                                 signerfile);
1090                                 ret = 5;
1091                                 goto end;
1092                                 }
1093                         sk_X509_free(signers);
1094                         }
1095                 if (rr_print)
1096                         receipt_request_print(bio_err, cms);
1097
1098                 }
1099         else if (operation == SMIME_VERIFY_RECEIPT)
1100                 {
1101                 if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0)
1102                         BIO_printf(bio_err, "Verification successful\n");
1103                 else
1104                         {
1105                         BIO_printf(bio_err, "Verification failure\n");
1106                         goto end;
1107                         }
1108                 }
1109         else
1110                 {
1111                 if (noout)
1112                         {
1113                         if (print)
1114                                 CMS_ContentInfo_print_ctx(out, cms, 0, NULL);
1115                         }
1116                 else if (outformat == FORMAT_SMIME)
1117                         {
1118                         if (to)
1119                                 BIO_printf(out, "To: %s\n", to);
1120                         if (from)
1121                                 BIO_printf(out, "From: %s\n", from);
1122                         if (subject)
1123                                 BIO_printf(out, "Subject: %s\n", subject);
1124                         if (operation == SMIME_RESIGN)
1125                                 ret = SMIME_write_CMS(out, cms, indata, flags);
1126                         else
1127                                 ret = SMIME_write_CMS(out, cms, in, flags);
1128                         }
1129                 else if (outformat == FORMAT_PEM)
1130                         ret = PEM_write_bio_CMS_stream(out, cms, in, flags);
1131                 else if (outformat == FORMAT_ASN1)
1132                         ret = i2d_CMS_bio_stream(out,cms, in, flags);
1133                 else
1134                         {
1135                         BIO_printf(bio_err, "Bad output format for CMS file\n");
1136                         goto end;
1137                         }
1138                 if (ret <= 0)
1139                         {
1140                         ret = 6;
1141                         goto end;
1142                         }
1143                 }
1144         ret = 0;
1145 end:
1146         if (ret)
1147                 ERR_print_errors(bio_err);
1148         if (need_rand)
1149                 app_RAND_write_file(NULL, bio_err);
1150         sk_X509_pop_free(encerts, X509_free);
1151         sk_X509_pop_free(other, X509_free);
1152         if (vpm)
1153                 X509_VERIFY_PARAM_free(vpm);
1154         if (sksigners)
1155                 sk_free(sksigners);
1156         if (skkeys)
1157                 sk_free(skkeys);
1158         if (secret_key)
1159                 OPENSSL_free(secret_key);
1160         if (secret_keyid)
1161                 OPENSSL_free(secret_keyid);
1162         if (econtent_type)
1163                 ASN1_OBJECT_free(econtent_type);
1164         if (rr)
1165                 CMS_ReceiptRequest_free(rr);
1166         if (rr_to)
1167                 sk_free(rr_to);
1168         if (rr_from)
1169                 sk_free(rr_from);
1170         X509_STORE_free(store);
1171         X509_free(cert);
1172         X509_free(recip);
1173         X509_free(signer);
1174         EVP_PKEY_free(key);
1175         CMS_ContentInfo_free(cms);
1176         CMS_ContentInfo_free(rcms);
1177         BIO_free(rctin);
1178         BIO_free(in);
1179         BIO_free(indata);
1180         BIO_free_all(out);
1181         if (passin) OPENSSL_free(passin);
1182         return (ret);
1183 }
1184
1185 static int save_certs(char *signerfile, STACK_OF(X509) *signers)
1186         {
1187         int i;
1188         BIO *tmp;
1189         if (!signerfile)
1190                 return 1;
1191         tmp = BIO_new_file(signerfile, "w");
1192         if (!tmp) return 0;
1193         for(i = 0; i < sk_X509_num(signers); i++)
1194                 PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
1195         BIO_free(tmp);
1196         return 1;
1197         }
1198
1199
1200 /* Minimal callback just to output policy info (if any) */
1201
1202 static int cms_cb(int ok, X509_STORE_CTX *ctx)
1203         {
1204         int error;
1205
1206         error = X509_STORE_CTX_get_error(ctx);
1207
1208         if ((error != X509_V_ERR_NO_EXPLICIT_POLICY)
1209                 && ((error != X509_V_OK) || (ok != 2)))
1210                 return ok;
1211
1212         policies_print(NULL, ctx);
1213
1214         return ok;
1215
1216         }
1217
1218 static void gnames_stack_print(BIO *out, STACK_OF(GENERAL_NAMES) *gns)
1219         {
1220         STACK_OF(GENERAL_NAME) *gens;
1221         GENERAL_NAME *gen;
1222         int i, j;
1223         for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++)
1224                 {
1225                 gens = sk_GENERAL_NAMES_value(gns, i);
1226                 for (j = 0; j < sk_GENERAL_NAME_num(gens); j++)
1227                         {
1228                         gen = sk_GENERAL_NAME_value(gens, j);
1229                         BIO_puts(out, "    ");
1230                         GENERAL_NAME_print(out, gen);
1231                         BIO_puts(out, "\n");
1232                         }
1233                 }
1234         return;
1235         }
1236
1237 static void receipt_request_print(BIO *out, CMS_ContentInfo *cms)
1238         {
1239         STACK_OF(CMS_SignerInfo) *sis;
1240         CMS_SignerInfo *si;
1241         CMS_ReceiptRequest *rr;
1242         int allorfirst;
1243         STACK_OF(GENERAL_NAMES) *rto, *rlist;
1244         ASN1_STRING *scid;
1245         int i, rv;
1246         sis = CMS_get0_SignerInfos(cms);
1247         for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++)
1248                 {
1249                 si = sk_CMS_SignerInfo_value(sis, i);
1250                 rv = CMS_get1_ReceiptRequest(si, &rr);
1251                 BIO_printf(bio_err, "Signer %d:\n", i + 1);
1252                 if (rv == 0)
1253                         BIO_puts(bio_err, "  No Receipt Request\n");
1254                 else if (rv < 0)
1255                         {
1256                         BIO_puts(bio_err, "  Receipt Request Parse Error\n");
1257                         ERR_print_errors(bio_err);
1258                         }
1259                 else
1260                         {
1261                         char *id;
1262                         int idlen;
1263                         CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
1264                                                         &rlist, &rto);
1265                         BIO_puts(out, "  Signed Content ID:\n");
1266                         idlen = ASN1_STRING_length(scid);
1267                         id = (char *)ASN1_STRING_data(scid);
1268                         BIO_dump_indent(out, id, idlen, 4);
1269                         BIO_puts(out, "  Receipts From");
1270                         if (rlist)
1271                                 {
1272                                 BIO_puts(out, " List:\n");
1273                                 gnames_stack_print(out, rlist);
1274                                 }
1275                         else if (allorfirst == 1)
1276                                 BIO_puts(out, ": First Tier\n");
1277                         else if (allorfirst == 0)
1278                                 BIO_puts(out, ": All\n");
1279                         else
1280                                 BIO_printf(out, " Unknown (%d)\n", allorfirst);
1281                         BIO_puts(out, "  Receipts To:\n");
1282                         gnames_stack_print(out, rto);
1283                         }
1284                 if (rr)
1285                         CMS_ReceiptRequest_free(rr);
1286                 }
1287         }
1288
1289 static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK *ns)
1290         {
1291         int i;
1292         STACK_OF(GENERAL_NAMES) *ret;
1293         GENERAL_NAMES *gens = NULL;
1294         GENERAL_NAME *gen = NULL;
1295         ret = sk_GENERAL_NAMES_new_null();
1296         if (!ret)
1297                 goto err;
1298         for (i = 0; i < sk_num(ns); i++)
1299                 {
1300                 char *str = sk_value(ns, i);
1301                 gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0);
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