crypto/libressl/apps/openssl/cms.c

   1 /* $OpenBSD: cms.c,v 1.5 2015/10/17 07:51:10 semarie Exp $ */
   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
  59 #include "apps.h"
  60
  61 #ifndef OPENSSL_NO_CMS
  62
  63 #include <openssl/cms.h>
  64 #include <openssl/crypto.h>
  65 #include <openssl/err.h>
  66 #include <openssl/pem.h>
  67 #include <openssl/x509_vfy.h>
  68 #include <openssl/x509v3.h>
  69
  70 static int save_certs(char *signerfile, STACK_OF(X509) * signers);
  71 static int cms_cb(int ok, X509_STORE_CTX * ctx);
  72 static void receipt_request_print(BIO * out, CMS_ContentInfo * cms);
  73 static CMS_ReceiptRequest * make_receipt_request(
  74     STACK_OF(OPENSSL_STRING) * rr_to, int rr_allorfirst,
  75     STACK_OF(OPENSSL_STRING) * 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 verify_err = 0;
  98
  99 int
 100 cms_main(int argc, char **argv)
 101 {
 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_OF(OPENSSL_STRING) * 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 verify_retcode = 0;
 121         int rr_print = 0, rr_allorfirst = -1;
 122         STACK_OF(OPENSSL_STRING) * rr_to = NULL, *rr_from = NULL;
 123         CMS_ReceiptRequest *rr = NULL;
 124         char *to = NULL, *from = NULL, *subject = NULL;
 125         char *CAfile = NULL, *CApath = NULL;
 126         char *passargin = NULL, *passin = NULL;
 127         const EVP_MD *sign_md = NULL;
 128         int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
 129         int rctformat = FORMAT_SMIME, keyform = FORMAT_PEM;
 130         unsigned char *secret_key = NULL, *secret_keyid = NULL;
 131         unsigned char *pwri_pass = NULL, *pwri_tmp = NULL;
 132         size_t secret_keylen = 0, secret_keyidlen = 0;
 133
 134         ASN1_OBJECT *econtent_type = NULL;
 135
 136         X509_VERIFY_PARAM *vpm = NULL;
 137
 138         if (single_execution) {
 139                 if (pledge("stdio rpath wpath cpath tty", NULL) == -1) {
 140                         perror("pledge");
 141                         exit(1);
 142                 }
 143         }
 144
 145         args = argv + 1;
 146         ret = 1;
 147
 148         while (!badarg && *args && *args[0] == '-') {
 149                 if (!strcmp(*args, "-encrypt"))
 150                         operation = SMIME_ENCRYPT;
 151                 else if (!strcmp(*args, "-decrypt"))
 152                         operation = SMIME_DECRYPT;
 153                 else if (!strcmp(*args, "-sign"))
 154                         operation = SMIME_SIGN;
 155                 else if (!strcmp(*args, "-sign_receipt"))
 156                         operation = SMIME_SIGN_RECEIPT;
 157                 else if (!strcmp(*args, "-resign"))
 158                         operation = SMIME_RESIGN;
 159                 else if (!strcmp(*args, "-verify"))
 160                         operation = SMIME_VERIFY;
 161                 else if (!strcmp(*args, "-verify_retcode"))
 162                         verify_retcode = 1;
 163                 else if (!strcmp(*args, "-verify_receipt")) {
 164                         operation = SMIME_VERIFY_RECEIPT;
 165                         if (!args[1])
 166                                 goto argerr;
 167                         args++;
 168                         rctfile = *args;
 169                 } else if (!strcmp(*args, "-cmsout"))
 170                         operation = SMIME_CMSOUT;
 171                 else if (!strcmp(*args, "-data_out"))
 172                         operation = SMIME_DATAOUT;
 173                 else if (!strcmp(*args, "-data_create"))
 174                         operation = SMIME_DATA_CREATE;
 175                 else if (!strcmp(*args, "-digest_verify"))
 176                         operation = SMIME_DIGEST_VERIFY;
 177                 else if (!strcmp(*args, "-digest_create"))
 178                         operation = SMIME_DIGEST_CREATE;
 179                 else if (!strcmp(*args, "-compress"))
 180                         operation = SMIME_COMPRESS;
 181                 else if (!strcmp(*args, "-uncompress"))
 182                         operation = SMIME_UNCOMPRESS;
 183                 else if (!strcmp(*args, "-EncryptedData_decrypt"))
 184                         operation = SMIME_ENCRYPTED_DECRYPT;
 185                 else if (!strcmp(*args, "-EncryptedData_encrypt"))
 186                         operation = SMIME_ENCRYPTED_ENCRYPT;
 187 #ifndef OPENSSL_NO_DES
 188                 else if (!strcmp(*args, "-des3"))
 189                         cipher = EVP_des_ede3_cbc();
 190                 else if (!strcmp(*args, "-des"))
 191                         cipher = EVP_des_cbc();
 192 #endif
 193 #ifndef OPENSSL_NO_RC2
 194                 else if (!strcmp(*args, "-rc2-40"))
 195                         cipher = EVP_rc2_40_cbc();
 196                 else if (!strcmp(*args, "-rc2-128"))
 197                         cipher = EVP_rc2_cbc();
 198                 else if (!strcmp(*args, "-rc2-64"))
 199                         cipher = EVP_rc2_64_cbc();
 200 #endif
 201 #ifndef OPENSSL_NO_AES
 202                 else if (!strcmp(*args, "-aes128"))
 203                         cipher = EVP_aes_128_cbc();
 204                 else if (!strcmp(*args, "-aes192"))
 205                         cipher = EVP_aes_192_cbc();
 206                 else if (!strcmp(*args, "-aes256"))
 207                         cipher = EVP_aes_256_cbc();
 208 #endif
 209 #ifndef OPENSSL_NO_CAMELLIA
 210                 else if (!strcmp(*args, "-camellia128"))
 211                         cipher = EVP_camellia_128_cbc();
 212                 else if (!strcmp(*args, "-camellia192"))
 213                         cipher = EVP_camellia_192_cbc();
 214                 else if (!strcmp(*args, "-camellia256"))
 215                         cipher = EVP_camellia_256_cbc();
 216 #endif
 217                 else if (!strcmp(*args, "-debug_decrypt"))
 218                         flags |= CMS_DEBUG_DECRYPT;
 219                 else if (!strcmp(*args, "-text"))
 220                         flags |= CMS_TEXT;
 221                 else if (!strcmp(*args, "-nointern"))
 222                         flags |= CMS_NOINTERN;
 223                 else if (!strcmp(*args, "-noverify") ||
 224                     !strcmp(*args, "-no_signer_cert_verify"))
 225                         flags |= CMS_NO_SIGNER_CERT_VERIFY;
 226                 else if (!strcmp(*args, "-nocerts"))
 227                         flags |= CMS_NOCERTS;
 228                 else if (!strcmp(*args, "-noattr"))
 229                         flags |= CMS_NOATTR;
 230                 else if (!strcmp(*args, "-nodetach"))
 231                         flags &= ~CMS_DETACHED;
 232                 else if (!strcmp(*args, "-nosmimecap"))
 233                         flags |= CMS_NOSMIMECAP;
 234                 else if (!strcmp(*args, "-binary"))
 235                         flags |= CMS_BINARY;
 236                 else if (!strcmp(*args, "-keyid"))
 237                         flags |= CMS_USE_KEYID;
 238                 else if (!strcmp(*args, "-nosigs"))
 239                         flags |= CMS_NOSIGS;
 240                 else if (!strcmp(*args, "-no_content_verify"))
 241                         flags |= CMS_NO_CONTENT_VERIFY;
 242                 else if (!strcmp(*args, "-no_attr_verify"))
 243                         flags |= CMS_NO_ATTR_VERIFY;
 244                 else if (!strcmp(*args, "-stream"))
 245                         flags |= CMS_STREAM;
 246                 else if (!strcmp(*args, "-indef"))
 247                         flags |= CMS_STREAM;
 248                 else if (!strcmp(*args, "-noindef"))
 249                         flags &= ~CMS_STREAM;
 250                 else if (!strcmp(*args, "-nooldmime"))
 251                         flags |= CMS_NOOLDMIMETYPE;
 252                 else if (!strcmp(*args, "-crlfeol"))
 253                         flags |= CMS_CRLFEOL;
 254                 else if (!strcmp(*args, "-noout"))
 255                         noout = 1;
 256                 else if (!strcmp(*args, "-receipt_request_print"))
 257                         rr_print = 1;
 258                 else if (!strcmp(*args, "-receipt_request_all"))
 259                         rr_allorfirst = 0;
 260                 else if (!strcmp(*args, "-receipt_request_first"))
 261                         rr_allorfirst = 1;
 262                 else if (!strcmp(*args, "-receipt_request_from")) {
 263                         if (!args[1])
 264                                 goto argerr;
 265                         args++;
 266                         if (!rr_from)
 267                                 rr_from = sk_OPENSSL_STRING_new_null();
 268                         sk_OPENSSL_STRING_push(rr_from, *args);
 269                 } else if (!strcmp(*args, "-receipt_request_to")) {
 270                         if (!args[1])
 271                                 goto argerr;
 272                         args++;
 273                         if (!rr_to)
 274                                 rr_to = sk_OPENSSL_STRING_new_null();
 275                         sk_OPENSSL_STRING_push(rr_to, *args);
 276                 } else if (!strcmp(*args, "-print")) {
 277                         noout = 1;
 278                         print = 1;
 279                 } else if (!strcmp(*args, "-secretkey")) {
 280                         long ltmp;
 281                         if (!args[1])
 282                                 goto argerr;
 283                         args++;
 284                         secret_key = string_to_hex(*args, &ltmp);
 285                         if (!secret_key) {
 286                                 BIO_printf(bio_err, "Invalid key %s\n", *args);
 287                                 goto argerr;
 288                         }
 289                         secret_keylen = (size_t) ltmp;
 290                 } else if (!strcmp(*args, "-secretkeyid")) {
 291                         long ltmp;
 292                         if (!args[1])
 293                                 goto argerr;
 294                         args++;
 295                         secret_keyid = string_to_hex(*args, &ltmp);
 296                         if (!secret_keyid) {
 297                                 BIO_printf(bio_err, "Invalid id %s\n", *args);
 298                                 goto argerr;
 299                         }
 300                         secret_keyidlen = (size_t) ltmp;
 301                 } else if (!strcmp(*args, "-pwri_password")) {
 302                         if (!args[1])
 303                                 goto argerr;
 304                         args++;
 305                         pwri_pass = (unsigned char *) *args;
 306                 } else if (!strcmp(*args, "-econtent_type")) {
 307                         if (!args[1])
 308                                 goto argerr;
 309                         args++;
 310                         econtent_type = OBJ_txt2obj(*args, 0);
 311                         if (!econtent_type) {
 312                                 BIO_printf(bio_err, "Invalid OID %s\n", *args);
 313                                 goto argerr;
 314                         }
 315                 }
 316                 else if (!strcmp(*args, "-passin")) {
 317                         if (!args[1])
 318                                 goto argerr;
 319                         passargin = *++args;
 320                 } else if (!strcmp(*args, "-to")) {
 321                         if (!args[1])
 322                                 goto argerr;
 323                         to = *++args;
 324                 } else if (!strcmp(*args, "-from")) {
 325                         if (!args[1])
 326                                 goto argerr;
 327                         from = *++args;
 328                 } else if (!strcmp(*args, "-subject")) {
 329                         if (!args[1])
 330                                 goto argerr;
 331                         subject = *++args;
 332                 } else if (!strcmp(*args, "-signer")) {
 333                         if (!args[1])
 334                                 goto argerr;
 335                         /* If previous -signer argument add signer to list */
 336
 337                         if (signerfile) {
 338                                 if (!sksigners)
 339                                         sksigners =
 340                                             sk_OPENSSL_STRING_new_null();
 341                                 sk_OPENSSL_STRING_push(sksigners, signerfile);
 342                                 if (!keyfile)
 343                                         keyfile = signerfile;
 344                                 if (!skkeys)
 345                                         skkeys = sk_OPENSSL_STRING_new_null();
 346                                 sk_OPENSSL_STRING_push(skkeys, keyfile);
 347                                 keyfile = NULL;
 348                         }
 349                         signerfile = *++args;
 350                 } else if (!strcmp(*args, "-recip")) {
 351                         if (!args[1])
 352                                 goto argerr;
 353                         recipfile = *++args;
 354                 } else if (!strcmp(*args, "-certsout")) {
 355                         if (!args[1])
 356                                 goto argerr;
 357                         certsoutfile = *++args;
 358                 } else if (!strcmp(*args, "-md")) {
 359                         if (!args[1])
 360                                 goto argerr;
 361                         sign_md = EVP_get_digestbyname(*++args);
 362                         if (sign_md == NULL) {
 363                                 BIO_printf(bio_err, "Unknown digest %s\n",
 364                                     *args);
 365                                 goto argerr;
 366                         }
 367                 } else if (!strcmp(*args, "-inkey")) {
 368                         if (!args[1])
 369                                 goto argerr;
 370                         /* If previous -inkey arument add signer to list */
 371                         if (keyfile) {
 372                                 if (!signerfile) {
 373                                         BIO_puts(bio_err,
 374                                             "Illegal -inkey without -signer\n");
 375                                         goto argerr;
 376                                 }
 377                                 if (!sksigners)
 378                                         sksigners =
 379                                             sk_OPENSSL_STRING_new_null();
 380                                 sk_OPENSSL_STRING_push(sksigners, signerfile);
 381                                 signerfile = NULL;
 382                                 if (!skkeys)
 383                                         skkeys = sk_OPENSSL_STRING_new_null();
 384                                 sk_OPENSSL_STRING_push(skkeys, keyfile);
 385                         }
 386                         keyfile = *++args;
 387                 } else if (!strcmp(*args, "-keyform")) {
 388                         if (!args[1])
 389                                 goto argerr;
 390                         keyform = str2fmt(*++args);
 391                 } else if (!strcmp(*args, "-rctform")) {
 392                         if (!args[1])
 393                                 goto argerr;
 394                         rctformat = str2fmt(*++args);
 395                 } else if (!strcmp(*args, "-certfile")) {
 396                         if (!args[1])
 397                                 goto argerr;
 398                         certfile = *++args;
 399                 } else if (!strcmp(*args, "-CAfile")) {
 400                         if (!args[1])
 401                                 goto argerr;
 402                         CAfile = *++args;
 403                 } else if (!strcmp(*args, "-CApath")) {
 404                         if (!args[1])
 405                                 goto argerr;
 406                         CApath = *++args;
 407                 } else if (!strcmp(*args, "-in")) {
 408                         if (!args[1])
 409                                 goto argerr;
 410                         infile = *++args;
 411                 } else if (!strcmp(*args, "-inform")) {
 412                         if (!args[1])
 413                                 goto argerr;
 414                         informat = str2fmt(*++args);
 415                 } else if (!strcmp(*args, "-outform")) {
 416                         if (!args[1])
 417                                 goto argerr;
 418                         outformat = str2fmt(*++args);
 419                 } else if (!strcmp(*args, "-out")) {
 420                         if (!args[1])
 421                                 goto argerr;
 422                         outfile = *++args;
 423                 } else if (!strcmp(*args, "-content")) {
 424                         if (!args[1])
 425                                 goto argerr;
 426                         contfile = *++args;
 427                 } else if (args_verify(&args, NULL, &badarg, bio_err, &vpm))
 428                         continue;
 429                 else if ((cipher = EVP_get_cipherbyname(*args + 1)) == NULL)
 430                         badarg = 1;
 431                 args++;
 432         }
 433
 434         if (((rr_allorfirst != -1) || rr_from) && !rr_to) {
 435                 BIO_puts(bio_err, "No Signed Receipts Recipients\n");
 436                 goto argerr;
 437         }
 438         if (!(operation & SMIME_SIGNERS) && (rr_to || rr_from)) {
 439                 BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
 440                 goto argerr;
 441         }
 442         if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) {
 443                 BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
 444                 goto argerr;
 445         }
 446         if (operation & SMIME_SIGNERS) {
 447                 if (keyfile && !signerfile) {
 448                         BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 449                         goto argerr;
 450                 }
 451                 /* Check to see if any final signer needs to be appended */
 452                 if (signerfile) {
 453                         if (!sksigners)
 454                                 sksigners = sk_OPENSSL_STRING_new_null();
 455                         sk_OPENSSL_STRING_push(sksigners, signerfile);
 456                         if (!skkeys)
 457                                 skkeys = sk_OPENSSL_STRING_new_null();
 458                         if (!keyfile)
 459                                 keyfile = signerfile;
 460                         sk_OPENSSL_STRING_push(skkeys, keyfile);
 461                 }
 462                 if (!sksigners) {
 463                         BIO_printf(bio_err,
 464                             "No signer certificate specified\n");
 465                         badarg = 1;
 466                 }
 467                 signerfile = NULL;
 468                 keyfile = NULL;
 469         } else if (operation == SMIME_DECRYPT) {
 470                 if (!recipfile && !keyfile && !secret_key && !pwri_pass) {
 471                         BIO_printf(bio_err,
 472                             "No recipient certificate or key specified\n");
 473                         badarg = 1;
 474                 }
 475         } else if (operation == SMIME_ENCRYPT) {
 476                 if (!*args && !secret_key && !pwri_pass) {
 477                         BIO_printf(bio_err,
 478                             "No recipient(s) certificate(s) specified\n");
 479                         badarg = 1;
 480                 }
 481         } else if (!operation)
 482                 badarg = 1;
 483
 484         if (badarg) {
 485 argerr:
 486                 BIO_printf(bio_err, "Usage cms [options] cert.pem ...\n");
 487                 BIO_printf(bio_err, "where options are\n");
 488                 BIO_printf(bio_err, "-encrypt       encrypt message\n");
 489                 BIO_printf(bio_err, "-decrypt       decrypt encrypted message\n");
 490                 BIO_printf(bio_err, "-sign          sign message\n");
 491                 BIO_printf(bio_err, "-verify        verify signed message\n");
 492                 BIO_printf(bio_err, "-cmsout        output CMS structure\n");
 493 #ifndef OPENSSL_NO_DES
 494                 BIO_printf(bio_err, "-des3          encrypt with triple DES\n");
 495                 BIO_printf(bio_err, "-des           encrypt with DES\n");
 496 #endif
 497 #ifndef OPENSSL_NO_RC2
 498                 BIO_printf(bio_err, "-rc2-40        encrypt with RC2-40 (default)\n");
 499                 BIO_printf(bio_err, "-rc2-64        encrypt with RC2-64\n");
 500                 BIO_printf(bio_err, "-rc2-128       encrypt with RC2-128\n");
 501 #endif
 502 #ifndef OPENSSL_NO_AES
 503                 BIO_printf(bio_err, "-aes128, -aes192, -aes256\n");
 504                 BIO_printf(bio_err, "               encrypt PEM output with cbc aes\n");
 505 #endif
 506 #ifndef OPENSSL_NO_CAMELLIA
 507                 BIO_printf(bio_err, "-camellia128, -camellia192, -camellia256\n");
 508                 BIO_printf(bio_err, "               encrypt PEM output with cbc camellia\n");
 509 #endif
 510                 BIO_printf(bio_err, "-nointern      don't search certificates in message for signer\n");
 511                 BIO_printf(bio_err, "-nosigs        don't verify message signature\n");
 512                 BIO_printf(bio_err, "-noverify      don't verify signers certificate\n");
 513                 BIO_printf(bio_err, "-nocerts       don't include signers certificate when signing\n");
 514                 BIO_printf(bio_err, "-nodetach      use opaque signing\n");
 515                 BIO_printf(bio_err, "-noattr        don't include any signed attributes\n");
 516                 BIO_printf(bio_err, "-binary        don't translate message to text\n");
 517                 BIO_printf(bio_err, "-certfile file other certificates file\n");
 518                 BIO_printf(bio_err, "-certsout file certificate output file\n");
 519                 BIO_printf(bio_err, "-signer file   signer certificate file\n");
 520                 BIO_printf(bio_err, "-recip  file   recipient certificate file for decryption\n");
 521                 BIO_printf(bio_err, "-keyid         use subject key identifier\n");
 522                 BIO_printf(bio_err, "-in file       input file\n");
 523                 BIO_printf(bio_err, "-inform arg    input format SMIME (default), PEM or DER\n");
 524                 BIO_printf(bio_err, "-inkey file    input private key (if not signer or recipient)\n");
 525                 BIO_printf(bio_err, "-keyform arg   input private key format (PEM)\n");
 526                 BIO_printf(bio_err, "-out file      output file\n");
 527                 BIO_printf(bio_err, "-outform arg   output format SMIME (default), PEM or DER\n");
 528                 BIO_printf(bio_err, "-content file  supply or override content for detached signature\n");
 529                 BIO_printf(bio_err, "-to addr       to address\n");
 530                 BIO_printf(bio_err, "-from ad       from address\n");
 531                 BIO_printf(bio_err, "-subject s     subject\n");
 532                 BIO_printf(bio_err, "-text          include or delete text MIME headers\n");
 533                 BIO_printf(bio_err, "-CApath dir    trusted certificates directory\n");
 534                 BIO_printf(bio_err, "-CAfile file   trusted certificates file\n");
 535                 BIO_printf(bio_err, "-crl_check     check revocation status of signer's certificate using CRLs\n");
 536                 BIO_printf(bio_err, "-crl_check_all check revocation status of signer's certificate chain using CRLs\n");
 537                 BIO_printf(bio_err, "-passin arg    input file pass phrase source\n");
 538                 BIO_printf(bio_err, "cert.pem       recipient certificate(s) for encryption\n");
 539                 goto end;
 540         }
 541
 542         if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
 543                 BIO_printf(bio_err, "Error getting password\n");
 544                 goto end;
 545         }
 546         ret = 2;
 547
 548         if (!(operation & SMIME_SIGNERS))
 549                 flags &= ~CMS_DETACHED;
 550
 551         if (operation & SMIME_OP) {
 552                 if (outformat == FORMAT_ASN1)
 553                         outmode = "wb";
 554         } else {
 555                 if (flags & CMS_BINARY)
 556                         outmode = "wb";
 557         }
 558
 559         if (operation & SMIME_IP) {
 560                 if (informat == FORMAT_ASN1)
 561                         inmode = "rb";
 562         } else {
 563                 if (flags & CMS_BINARY)
 564                         inmode = "rb";
 565         }
 566
 567         if (operation == SMIME_ENCRYPT) {
 568                 if (!cipher) {
 569 #ifndef OPENSSL_NO_DES
 570                         cipher = EVP_des_ede3_cbc();
 571 #else
 572                         BIO_printf(bio_err, "No cipher selected\n");
 573                         goto end;
 574 #endif
 575                 }
 576                 if (secret_key && !secret_keyid) {
 577                         BIO_printf(bio_err, "No secret key id\n");
 578                         goto end;
 579                 }
 580                 if (*args)
 581                         encerts = sk_X509_new_null();
 582                 while (*args) {
 583                         if (!(cert = load_cert(bio_err, *args, FORMAT_PEM,
 584                             NULL, e, "recipient certificate file")))
 585                                 goto end;
 586                         sk_X509_push(encerts, cert);
 587                         cert = NULL;
 588                         args++;
 589                 }
 590         }
 591         if (certfile) {
 592                 if (!(other = load_certs(bio_err, certfile, FORMAT_PEM, NULL,
 593                     e, "certificate file"))) {
 594                         ERR_print_errors(bio_err);
 595                         goto end;
 596                 }
 597         }
 598         if (recipfile && (operation == SMIME_DECRYPT)) {
 599                 if (!(recip = load_cert(bio_err, recipfile, FORMAT_PEM, NULL,
 600                     e, "recipient certificate file"))) {
 601                         ERR_print_errors(bio_err);
 602                         goto end;
 603                 }
 604         }
 605         if (operation == SMIME_SIGN_RECEIPT) {
 606                 if (!(signer = load_cert(bio_err, signerfile, FORMAT_PEM, NULL,
 607                     e, "receipt signer certificate file"))) {
 608                         ERR_print_errors(bio_err);
 609                         goto end;
 610                 }
 611         }
 612         if (operation == SMIME_DECRYPT) {
 613                 if (!keyfile)
 614                         keyfile = recipfile;
 615         } else if ((operation == SMIME_SIGN) ||
 616             (operation == SMIME_SIGN_RECEIPT)) {
 617                 if (!keyfile)
 618                         keyfile = signerfile;
 619         } else
 620                 keyfile = NULL;
 621
 622         if (keyfile) {
 623                 key = load_key(bio_err, keyfile, keyform, 0, passin, e,
 624                     "signing key file");
 625                 if (!key)
 626                         goto end;
 627         }
 628         if (infile) {
 629                 if (!(in = BIO_new_file(infile, inmode))) {
 630                         BIO_printf(bio_err,
 631                             "Can't open input file %s\n", infile);
 632                         goto end;
 633                 }
 634         } else
 635                 in = BIO_new_fp(stdin, BIO_NOCLOSE);
 636
 637         if (operation & SMIME_IP) {
 638                 if (informat == FORMAT_SMIME)
 639                         cms = SMIME_read_CMS(in, &indata);
 640                 else if (informat == FORMAT_PEM)
 641                         cms = PEM_read_bio_CMS(in, NULL, NULL, NULL);
 642                 else if (informat == FORMAT_ASN1)
 643                         cms = d2i_CMS_bio(in, NULL);
 644                 else {
 645                         BIO_printf(bio_err, "Bad input format for CMS file\n");
 646                         goto end;
 647                 }
 648
 649                 if (!cms) {
 650                         BIO_printf(bio_err, "Error reading S/MIME message\n");
 651                         goto end;
 652                 }
 653                 if (contfile) {
 654                         BIO_free(indata);
 655                         if (!(indata = BIO_new_file(contfile, "rb"))) {
 656                                 BIO_printf(bio_err,
 657                                     "Can't read content file %s\n", contfile);
 658                                 goto end;
 659                         }
 660                 }
 661                 if (certsoutfile) {
 662                         STACK_OF(X509) * allcerts;
 663                         allcerts = CMS_get1_certs(cms);
 664                         if (!save_certs(certsoutfile, allcerts)) {
 665                                 BIO_printf(bio_err,
 666                                     "Error writing certs to %s\n",
 667                                     certsoutfile);
 668                                 ret = 5;
 669                                 goto end;
 670                         }
 671                         sk_X509_pop_free(allcerts, X509_free);
 672                 }
 673         }
 674         if (rctfile) {
 675                 char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r";
 676                 if (!(rctin = BIO_new_file(rctfile, rctmode))) {
 677                         BIO_printf(bio_err,
 678                             "Can't open receipt file %s\n", rctfile);
 679                         goto end;
 680                 }
 681                 if (rctformat == FORMAT_SMIME)
 682                         rcms = SMIME_read_CMS(rctin, NULL);
 683                 else if (rctformat == FORMAT_PEM)
 684                         rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
 685                 else if (rctformat == FORMAT_ASN1)
 686                         rcms = d2i_CMS_bio(rctin, NULL);
 687                 else {
 688                         BIO_printf(bio_err, "Bad input format for receipt\n");
 689                         goto end;
 690                 }
 691
 692                 if (!rcms) {
 693                         BIO_printf(bio_err, "Error reading receipt\n");
 694                         goto end;
 695                 }
 696         }
 697         if (outfile) {
 698                 if (!(out = BIO_new_file(outfile, outmode))) {
 699                         BIO_printf(bio_err,
 700                             "Can't open output file %s\n", outfile);
 701                         goto end;
 702                 }
 703         } else {
 704                 out = BIO_new_fp(stdout, BIO_NOCLOSE);
 705         }
 706
 707         if ((operation == SMIME_VERIFY) ||
 708             (operation == SMIME_VERIFY_RECEIPT)) {
 709                 if (!(store = setup_verify(bio_err, CAfile, CApath)))
 710                         goto end;
 711                 X509_STORE_set_verify_cb(store, cms_cb);
 712                 if (vpm)
 713                         X509_STORE_set1_param(store, vpm);
 714         }
 715         ret = 3;
 716
 717         if (operation == SMIME_DATA_CREATE) {
 718                 cms = CMS_data_create(in, flags);
 719         } else if (operation == SMIME_DIGEST_CREATE) {
 720                 cms = CMS_digest_create(in, sign_md, flags);
 721         } else if (operation == SMIME_COMPRESS) {
 722                 cms = CMS_compress(in, -1, flags);
 723         } else if (operation == SMIME_ENCRYPT) {
 724                 flags |= CMS_PARTIAL;
 725                 cms = CMS_encrypt(encerts, in, cipher, flags);
 726                 if (!cms)
 727                         goto end;
 728                 if (secret_key) {
 729                         if (!CMS_add0_recipient_key(cms, NID_undef, secret_key,
 730                             secret_keylen, secret_keyid, secret_keyidlen,
 731                             NULL, NULL, NULL))
 732                                 goto end;
 733                         /* NULL these because call absorbs them */
 734                         secret_key = NULL;
 735                         secret_keyid = NULL;
 736                 }
 737                 if (pwri_pass) {
 738                         pwri_tmp = strdup(pwri_pass);
 739                         if (!pwri_tmp)
 740                                 goto end;
 741                         if (!CMS_add0_recipient_password(cms, -1, NID_undef,
 742                             NID_undef, pwri_tmp, -1, NULL))
 743                                 goto end;
 744                         pwri_tmp = NULL;
 745                 }
 746                 if (!(flags & CMS_STREAM)) {
 747                         if (!CMS_final(cms, in, NULL, flags))
 748                                 goto end;
 749                 }
 750         } else if (operation == SMIME_ENCRYPTED_ENCRYPT) {
 751                 cms = CMS_EncryptedData_encrypt(in, cipher, secret_key,
 752                     secret_keylen, flags);
 753
 754         } else if (operation == SMIME_SIGN_RECEIPT) {
 755                 CMS_ContentInfo *srcms = NULL;
 756                 STACK_OF(CMS_SignerInfo) * sis;
 757                 CMS_SignerInfo *si;
 758                 sis = CMS_get0_SignerInfos(cms);
 759                 if (!sis)
 760                         goto end;
 761                 si = sk_CMS_SignerInfo_value(sis, 0);
 762                 srcms = CMS_sign_receipt(si, signer, key, other, flags);
 763                 if (!srcms)
 764                         goto end;
 765                 CMS_ContentInfo_free(cms);
 766                 cms = srcms;
 767         } else if (operation & SMIME_SIGNERS) {
 768                 int i;
 769                 /*
 770                  * If detached data content we enable streaming if S/MIME
 771                  * output format.
 772                  */
 773                 if (operation == SMIME_SIGN) {
 774
 775                         if (flags & CMS_DETACHED) {
 776                                 if (outformat == FORMAT_SMIME)
 777                                         flags |= CMS_STREAM;
 778                         }
 779                         flags |= CMS_PARTIAL;
 780                         cms = CMS_sign(NULL, NULL, other, in, flags);
 781                         if (!cms)
 782                                 goto end;
 783                         if (econtent_type)
 784                                 CMS_set1_eContentType(cms, econtent_type);
 785
 786                         if (rr_to) {
 787                                 rr = make_receipt_request(rr_to, rr_allorfirst,
 788                                     rr_from);
 789                                 if (!rr) {
 790                                         BIO_puts(bio_err,
 791                                             "Signed Receipt Request Creation Error\n");
 792                                         goto end;
 793                                 }
 794                         }
 795                 } else
 796                         flags |= CMS_REUSE_DIGEST;
 797                 for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
 798                         CMS_SignerInfo *si;
 799                         signerfile = sk_OPENSSL_STRING_value(sksigners, i);
 800                         keyfile = sk_OPENSSL_STRING_value(skkeys, i);
 801                         signer = load_cert(bio_err, signerfile, FORMAT_PEM,
 802                             NULL, e, "signer certificate");
 803                         if (!signer)
 804                                 goto end;
 805                         key = load_key(bio_err, keyfile, keyform, 0, passin, e,
 806                             "signing key file");
 807                         if (!key)
 808                                 goto end;
 809                         si = CMS_add1_signer(cms, signer, key, sign_md, flags);
 810                         if (!si)
 811                                 goto end;
 812                         if (rr && !CMS_add1_ReceiptRequest(si, rr))
 813                                 goto end;
 814                         X509_free(signer);
 815                         signer = NULL;
 816                         EVP_PKEY_free(key);
 817                         key = NULL;
 818                 }
 819                 /* If not streaming or resigning finalize structure */
 820                 if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) {
 821                         if (!CMS_final(cms, in, NULL, flags))
 822                                 goto end;
 823                 }
 824         }
 825         if (!cms) {
 826                 BIO_printf(bio_err, "Error creating CMS structure\n");
 827                 goto end;
 828         }
 829         ret = 4;
 830         if (operation == SMIME_DECRYPT) {
 831                 if (flags & CMS_DEBUG_DECRYPT)
 832                         CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
 833
 834                 if (secret_key) {
 835                         if (!CMS_decrypt_set1_key(cms, secret_key,
 836                             secret_keylen, secret_keyid, secret_keyidlen)) {
 837                                 BIO_puts(bio_err,
 838                                     "Error decrypting CMS using secret key\n");
 839                                 goto end;
 840                         }
 841                 }
 842                 if (key) {
 843                         if (!CMS_decrypt_set1_pkey(cms, key, recip)) {
 844                                 BIO_puts(bio_err,
 845                                     "Error decrypting CMS using private key\n");
 846                                 goto end;
 847                         }
 848                 }
 849                 if (pwri_pass) {
 850                         if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) {
 851                                 BIO_puts(bio_err,
 852                                     "Error decrypting CMS using password\n");
 853                                 goto end;
 854                         }
 855                 }
 856                 if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) {
 857                         BIO_printf(bio_err, "Error decrypting CMS structure\n");
 858                         goto end;
 859                 }
 860         } else if (operation == SMIME_DATAOUT) {
 861                 if (!CMS_data(cms, out, flags))
 862                         goto end;
 863         } else if (operation == SMIME_UNCOMPRESS) {
 864                 if (!CMS_uncompress(cms, indata, out, flags))
 865                         goto end;
 866         } else if (operation == SMIME_DIGEST_VERIFY) {
 867                 if (CMS_digest_verify(cms, indata, out, flags) > 0)
 868                         BIO_printf(bio_err, "Verification successful\n");
 869                 else {
 870                         BIO_printf(bio_err, "Verification failure\n");
 871                         goto end;
 872                 }
 873         } else if (operation == SMIME_ENCRYPTED_DECRYPT) {
 874                 if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
 875                     indata, out, flags))
 876                         goto end;
 877         } else if (operation == SMIME_VERIFY) {
 878                 if (CMS_verify(cms, other, store, indata, out, flags) > 0)
 879                         BIO_printf(bio_err, "Verification successful\n");
 880                 else {
 881                         BIO_printf(bio_err, "Verification failure\n");
 882                         if (verify_retcode)
 883                                 ret = verify_err + 32;
 884                         goto end;
 885                 }
 886                 if (signerfile) {
 887                         STACK_OF(X509) * signers;
 888                         signers = CMS_get0_signers(cms);
 889                         if (!save_certs(signerfile, signers)) {
 890                                 BIO_printf(bio_err,
 891                                     "Error writing signers to %s\n",
 892                                     signerfile);
 893                                 ret = 5;
 894                                 goto end;
 895                         }
 896                         sk_X509_free(signers);
 897                 }
 898                 if (rr_print)
 899                         receipt_request_print(bio_err, cms);
 900
 901         } else if (operation == SMIME_VERIFY_RECEIPT) {
 902                 if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0)
 903                         BIO_printf(bio_err, "Verification successful\n");
 904                 else {
 905                         BIO_printf(bio_err, "Verification failure\n");
 906                         goto end;
 907                 }
 908         } else {
 909                 if (noout) {
 910                         if (print)
 911                                 CMS_ContentInfo_print_ctx(out, cms, 0, NULL);
 912                 } else if (outformat == FORMAT_SMIME) {
 913                         if (to)
 914                                 BIO_printf(out, "To: %s\n", to);
 915                         if (from)
 916                                 BIO_printf(out, "From: %s\n", from);
 917                         if (subject)
 918                                 BIO_printf(out, "Subject: %s\n", subject);
 919                         if (operation == SMIME_RESIGN)
 920                                 ret = SMIME_write_CMS(out, cms, indata, flags);
 921                         else
 922                                 ret = SMIME_write_CMS(out, cms, in, flags);
 923                 } else if (outformat == FORMAT_PEM)
 924                         ret = PEM_write_bio_CMS_stream(out, cms, in, flags);
 925                 else if (outformat == FORMAT_ASN1)
 926                         ret = i2d_CMS_bio_stream(out, cms, in, flags);
 927                 else {
 928                         BIO_printf(bio_err, "Bad output format for CMS file\n");
 929                         goto end;
 930                 }
 931                 if (ret <= 0) {
 932                         ret = 6;
 933                         goto end;
 934                 }
 935         }
 936         ret = 0;
 937
 938 end:
 939         if (ret)
 940                 ERR_print_errors(bio_err);
 941         sk_X509_pop_free(encerts, X509_free);
 942         sk_X509_pop_free(other, X509_free);
 943         if (vpm)
 944                 X509_VERIFY_PARAM_free(vpm);
 945         if (sksigners)
 946                 sk_OPENSSL_STRING_free(sksigners);
 947         if (skkeys)
 948                 sk_OPENSSL_STRING_free(skkeys);
 949         free(secret_key);
 950         free(secret_keyid);
 951         free(pwri_tmp);
 952         if (econtent_type)
 953                 ASN1_OBJECT_free(econtent_type);
 954         if (rr)
 955                 CMS_ReceiptRequest_free(rr);
 956         if (rr_to)
 957                 sk_OPENSSL_STRING_free(rr_to);
 958         if (rr_from)
 959                 sk_OPENSSL_STRING_free(rr_from);
 960         X509_STORE_free(store);
 961         X509_free(cert);
 962         X509_free(recip);
 963         X509_free(signer);
 964         EVP_PKEY_free(key);
 965         CMS_ContentInfo_free(cms);
 966         CMS_ContentInfo_free(rcms);
 967         BIO_free(rctin);
 968         BIO_free(in);
 969         BIO_free(indata);
 970         BIO_free_all(out);
 971         free(passin);
 972         return (ret);
 973 }
 974
 975 static int
 976 save_certs(char *signerfile, STACK_OF(X509) * signers)
 977 {
 978         int i;
 979         BIO *tmp;
 980
 981         if (!signerfile)
 982                 return 1;
 983         tmp = BIO_new_file(signerfile, "w");
 984         if (!tmp)
 985                 return 0;
 986         for (i = 0; i < sk_X509_num(signers); i++)
 987                 PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
 988         BIO_free(tmp);
 989         return 1;
 990 }
 991
 992 /* Minimal callback just to output policy info (if any) */
 993
 994 static int
 995 cms_cb(int ok, X509_STORE_CTX * ctx)
 996 {
 997         int error;
 998
 999         error = X509_STORE_CTX_get_error(ctx);
1000
1001         verify_err = error;
1002
1003         if ((error != X509_V_ERR_NO_EXPLICIT_POLICY) &&
1004             ((error != X509_V_OK) || (ok != 2)))
1005                 return ok;
1006
1007         policies_print(NULL, ctx);
1008
1009         return ok;
1010 }
1011
1012 static void
1013 gnames_stack_print(BIO * out, STACK_OF(GENERAL_NAMES) * gns)
1014 {
1015         STACK_OF(GENERAL_NAME) * gens;
1016         GENERAL_NAME *gen;
1017         int i, j;
1018
1019         for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) {
1020                 gens = sk_GENERAL_NAMES_value(gns, i);
1021                 for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) {
1022                         gen = sk_GENERAL_NAME_value(gens, j);
1023                         BIO_puts(out, "    ");
1024                         GENERAL_NAME_print(out, gen);
1025                         BIO_puts(out, "\n");
1026                 }
1027         }
1028         return;
1029 }
1030
1031 static void
1032 receipt_request_print(BIO * out, CMS_ContentInfo * cms)
1033 {
1034         STACK_OF(CMS_SignerInfo) * sis;
1035         CMS_SignerInfo *si;
1036         CMS_ReceiptRequest *rr;
1037         int allorfirst;
1038         STACK_OF(GENERAL_NAMES) * rto, *rlist;
1039         ASN1_STRING *scid;
1040         int i, rv;
1041
1042         sis = CMS_get0_SignerInfos(cms);
1043         for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) {
1044                 si = sk_CMS_SignerInfo_value(sis, i);
1045                 rv = CMS_get1_ReceiptRequest(si, &rr);
1046                 BIO_printf(bio_err, "Signer %d:\n", i + 1);
1047                 if (rv == 0)
1048                         BIO_puts(bio_err, "  No Receipt Request\n");
1049                 else if (rv < 0) {
1050                         BIO_puts(bio_err, "  Receipt Request Parse Error\n");
1051                         ERR_print_errors(bio_err);
1052                 } else {
1053                         char *id;
1054                         int idlen;
1055                         CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
1056                             &rlist, &rto);
1057                         BIO_puts(out, "  Signed Content ID:\n");
1058                         idlen = ASN1_STRING_length(scid);
1059                         id = (char *) ASN1_STRING_data(scid);
1060                         BIO_dump_indent(out, id, idlen, 4);
1061                         BIO_puts(out, "  Receipts From");
1062                         if (rlist) {
1063                                 BIO_puts(out, " List:\n");
1064                                 gnames_stack_print(out, rlist);
1065                         } else if (allorfirst == 1)
1066                                 BIO_puts(out, ": First Tier\n");
1067                         else if (allorfirst == 0)
1068                                 BIO_puts(out, ": All\n");
1069                         else
1070                                 BIO_printf(out, " Unknown (%d)\n", allorfirst);
1071                         BIO_puts(out, "  Receipts To:\n");
1072                         gnames_stack_print(out, rto);
1073                 }
1074                 if (rr)
1075                         CMS_ReceiptRequest_free(rr);
1076         }
1077 }
1078
1079 static STACK_OF(GENERAL_NAMES) *
1080 make_names_stack(STACK_OF(OPENSSL_STRING) * ns)
1081 {
1082         int i;
1083         STACK_OF(GENERAL_NAMES) * ret;
1084         GENERAL_NAMES *gens = NULL;
1085         GENERAL_NAME *gen = NULL;
1086         ret = sk_GENERAL_NAMES_new_null();
1087         if (!ret)
1088                 goto err;
1089         for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++) {
1090                 char *str = sk_OPENSSL_STRING_value(ns, i);
1091                 gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0);
1092                 if (!gen)
1093                         goto err;
1094                 gens = GENERAL_NAMES_new();
1095                 if (!gens)
1096                         goto err;
1097                 if (!sk_GENERAL_NAME_push(gens, gen))
1098                         goto err;
1099                 gen = NULL;
1100                 if (!sk_GENERAL_NAMES_push(ret, gens))
1101                         goto err;
1102                 gens = NULL;
1103         }
1104
1105         return ret;
1106
1107 err:
1108         if (ret)
1109                 sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
1110         if (gens)
1111                 GENERAL_NAMES_free(gens);
1112         if (gen)
1113                 GENERAL_NAME_free(gen);
1114         return NULL;
1115 }
1116
1117
1118 static CMS_ReceiptRequest *
1119 make_receipt_request(STACK_OF(OPENSSL_STRING) * rr_to, int rr_allorfirst,
1120     STACK_OF(OPENSSL_STRING) * rr_from)
1121 {
1122         STACK_OF(GENERAL_NAMES) * rct_to, *rct_from;
1123         CMS_ReceiptRequest *rr;
1124
1125         rct_to = make_names_stack(rr_to);
1126         if (!rct_to)
1127                 goto err;
1128         if (rr_from) {
1129                 rct_from = make_names_stack(rr_from);
1130                 if (!rct_from)
1131                         goto err;
1132         } else
1133                 rct_from = NULL;
1134         rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from,
1135             rct_to);
1136         return rr;
1137
1138 err:
1139         return NULL;
1140 }
1141
1142 #endif