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