apps/cms.c

   1 /*
   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 static int save_certs(char *signerfile, STACK_OF(X509) *signers);
  70 static int cms_cb(int ok, X509_STORE_CTX *ctx);
  71 static void receipt_request_print(CMS_ContentInfo *cms);
  72 static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING)
  73                                                 *rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING)
  74                                                 *rr_from);
  75 static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
  76                               STACK_OF(OPENSSL_STRING) *param);
  77
  78 # define SMIME_OP        0x10
  79 # define SMIME_IP        0x20
  80 # define SMIME_SIGNERS   0x40
  81 # define SMIME_ENCRYPT           (1 | SMIME_OP)
  82 # define SMIME_DECRYPT           (2 | SMIME_IP)
  83 # define SMIME_SIGN              (3 | SMIME_OP | SMIME_SIGNERS)
  84 # define SMIME_VERIFY            (4 | SMIME_IP)
  85 # define SMIME_CMSOUT            (5 | SMIME_IP | SMIME_OP)
  86 # define SMIME_RESIGN            (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS)
  87 # define SMIME_DATAOUT           (7 | SMIME_IP)
  88 # define SMIME_DATA_CREATE       (8 | SMIME_OP)
  89 # define SMIME_DIGEST_VERIFY     (9 | SMIME_IP)
  90 # define SMIME_DIGEST_CREATE     (10 | SMIME_OP)
  91 # define SMIME_UNCOMPRESS        (11 | SMIME_IP)
  92 # define SMIME_COMPRESS          (12 | SMIME_OP)
  93 # define SMIME_ENCRYPTED_DECRYPT (13 | SMIME_IP)
  94 # define SMIME_ENCRYPTED_ENCRYPT (14 | SMIME_OP)
  95 # define SMIME_SIGN_RECEIPT      (15 | SMIME_IP | SMIME_OP)
  96 # define SMIME_VERIFY_RECEIPT    (16 | SMIME_IP)
  97
  98 static int verify_err = 0;
  99
 100 typedef struct cms_key_param_st cms_key_param;
 101
 102 struct cms_key_param_st {
 103     int idx;
 104     STACK_OF(OPENSSL_STRING) *param;
 105     cms_key_param *next;
 106 };
 107
 108 typedef enum OPTION_choice {
 109     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
 110     OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_ENCRYPT,
 111     OPT_DECRYPT, OPT_SIGN, OPT_SIGN_RECEIPT, OPT_RESIGN,
 112     OPT_VERIFY, OPT_VERIFY_RETCODE, OPT_VERIFY_RECEIPT,
 113     OPT_CMSOUT, OPT_DATA_OUT, OPT_DATA_CREATE, OPT_DIGEST_VERIFY,
 114     OPT_DIGEST_CREATE, OPT_COMPRESS, OPT_UNCOMPRESS,
 115     OPT_ED_DECRYPT, OPT_ED_ENCRYPT, OPT_DEBUG_DECRYPT, OPT_TEXT,
 116     OPT_ASCIICRLF, OPT_NOINTERN, OPT_NOVERIFY, OPT_NOCERTS,
 117     OPT_NOATTR, OPT_NODETACH, OPT_NOSMIMECAP, OPT_BINARY, OPT_KEYID,
 118     OPT_NOSIGS, OPT_NO_CONTENT_VERIFY, OPT_NO_ATTR_VERIFY, OPT_INDEF,
 119     OPT_NOINDEF, OPT_NOOLDMIME, OPT_CRLFEOL, OPT_NOOUT, OPT_RR_PRINT,
 120     OPT_RR_ALL, OPT_RR_FIRST, OPT_RCTFORM, OPT_CERTFILE, OPT_CAFILE,
 121     OPT_CAPATH, OPT_CONTENT, OPT_PRINT, OPT_SECRETKEY,
 122     OPT_SECRETKEYID, OPT_PWRI_PASSWORD, OPT_ECONTENT_TYPE, OPT_RAND,
 123     OPT_PASSIN, OPT_TO, OPT_FROM, OPT_SUBJECT, OPT_SIGNER, OPT_RECIP,
 124     OPT_CERTSOUT, OPT_MD, OPT_INKEY, OPT_KEYFORM, OPT_KEYOPT, OPT_RR_FROM,
 125     OPT_RR_TO, OPT_AES128_WRAP, OPT_AES192_WRAP, OPT_AES256_WRAP,
 126     OPT_3DES_WRAP, OPT_ENGINE,
 127     OPT_V_ENUM,
 128     OPT_CIPHER
 129 } OPTION_CHOICE;
 130
 131 OPTIONS cms_options[] = {
 132     {OPT_HELP_STR, 1, '-', "Usage: %s [options] cert.pem...\n"},
 133     {OPT_HELP_STR, 1, '-',
 134         "  cert.pem... recipient certs for encryption\n"},
 135     {OPT_HELP_STR, 1, '-', "Valid options are:\n"},
 136     {"help", OPT_HELP, '-', "Display this summary"},
 137     {"inform", OPT_INFORM, 'F', "Input format SMIME (default), PEM or DER"},
 138     {"outform", OPT_OUTFORM, 'F',
 139      "Output format SMIME (default), PEM or DER"},
 140     {"in", OPT_IN, '<', "Input file"},
 141     {"out", OPT_OUT, '>', "Output file"},
 142     {"encrypt", OPT_ENCRYPT, '-', "Encrypt message"},
 143     {"decrypt", OPT_DECRYPT, '-', "Decrypt encrypted message"},
 144     {"sign", OPT_SIGN, '-', "Sign message"},
 145     {"sign_receipt", OPT_SIGN_RECEIPT, '-'},
 146     {"resign", OPT_RESIGN, '-'},
 147     {"verify", OPT_VERIFY, '-', "Verify signed message"},
 148     {"verify_retcode", OPT_VERIFY_RETCODE, '-'},
 149     {"verify_receipt", OPT_VERIFY_RECEIPT, '<'},
 150     {"cmsout", OPT_CMSOUT, '-', "Output CMS structure"},
 151     {"data_out", OPT_DATA_OUT, '-'},
 152     {"data_create", OPT_DATA_CREATE, '-'},
 153     {"digest_verify", OPT_DIGEST_VERIFY, '-'},
 154     {"digest_create", OPT_DIGEST_CREATE, '-'},
 155     {"compress", OPT_COMPRESS, '-'},
 156     {"uncompress", OPT_UNCOMPRESS, '-'},
 157     {"EncryptedData_decrypt", OPT_ED_DECRYPT, '-'},
 158     {"EncryptedData_encrypt", OPT_ED_ENCRYPT, '-'},
 159     {"debug_decrypt", OPT_DEBUG_DECRYPT, '-'},
 160     {"text", OPT_TEXT, '-', "Include or delete text MIME headers"},
 161     {"asciicrlf", OPT_ASCIICRLF, '-'},
 162     {"nointern", OPT_NOINTERN, '-',
 163      "Don't search certificates in message for signer"},
 164     {"noverify", OPT_NOVERIFY, '-', "Don't verify signers certificate"},
 165     {"nocerts", OPT_NOCERTS, '-',
 166      "Don't include signers certificate when signing"},
 167     {"noattr", OPT_NOATTR, '-', "Don't include any signed attributes"},
 168     {"nodetach", OPT_NODETACH, '-', "Use opaque signing"},
 169     {"nosmimecap", OPT_NOSMIMECAP, '-'},
 170     {"binary", OPT_BINARY, '-', "Don't translate message to text"},
 171     {"keyid", OPT_KEYID, '-', "Use subject key identifier"},
 172     {"nosigs", OPT_NOSIGS, '-', "Don't verify message signature"},
 173     {"no_content_verify", OPT_NO_CONTENT_VERIFY, '-'},
 174     {"no_attr_verify", OPT_NO_ATTR_VERIFY, '-'},
 175     {"stream", OPT_INDEF, '-'},
 176     {"indef", OPT_INDEF, '-'},
 177     {"noindef", OPT_NOINDEF, '-'},
 178     {"nooldmime", OPT_NOOLDMIME, '-'},
 179     {"crlfeol", OPT_CRLFEOL, '-'},
 180     {"noout", OPT_NOOUT, '-'},
 181     {"receipt_request_print", OPT_RR_PRINT, '-'},
 182     {"receipt_request_all", OPT_RR_ALL, '-'},
 183     {"receipt_request_first", OPT_RR_FIRST, '-'},
 184     {"rctform", OPT_RCTFORM, 'F'},
 185     {"certfile", OPT_CERTFILE, '<', "Other certificates file"},
 186     {"CAfile", OPT_CAFILE, '<', "Trusted certificates file"},
 187     {"CApath", OPT_CAPATH, '/', "trusted certificates directory"},
 188     {"content", OPT_CONTENT, '<',
 189      "Supply or override content for detached signature"},
 190     {"print", OPT_PRINT, '-'},
 191     {"secretkey", OPT_SECRETKEY, 's'},
 192     {"secretkeyid", OPT_SECRETKEYID, 's'},
 193     {"pwri_password", OPT_PWRI_PASSWORD, 's'},
 194     {"econtent_type", OPT_ECONTENT_TYPE, 's'},
 195     {"rand", OPT_RAND, 's',
 196      "Load the file(s) into the random number generator"},
 197     {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
 198     {"to", OPT_TO, 's', "To address"},
 199     {"from", OPT_FROM, 's', "From address"},
 200     {"subject", OPT_SUBJECT, 's', "Subject"},
 201     {"signer", OPT_SIGNER, 's', "Signer certificate file"},
 202     {"recip", OPT_RECIP, '<', "Recipient cert file for decryption"},
 203     {"certsout", OPT_CERTSOUT, '>', "Certificate output file"},
 204     {"md", OPT_MD, 's'},
 205     {"inkey", OPT_INKEY, '<',
 206      "Input private key (if not signer or recipient)"},
 207     {"keyform", OPT_KEYFORM, 'f', "Input private key format (PEM or ENGINE)"},
 208     {"keyopt", OPT_KEYOPT, 's', "Set public key parameters as n:v pairs"},
 209     {"receipt_request_from", OPT_RR_FROM, 's'},
 210     {"receipt_request_to", OPT_RR_TO, 's'},
 211     {"", OPT_CIPHER, '-', "Any supported cipher"},
 212     OPT_V_OPTIONS,
 213 # ifndef OPENSSL_NO_AES
 214     {"aes128-wrap", OPT_AES128_WRAP, '-', "Use AES128 to wrap key"},
 215     {"aes192-wrap", OPT_AES192_WRAP, '-', "Use AES192 to wrap key"},
 216     {"aes256-wrap", OPT_AES256_WRAP, '-', "Use AES256 to wrap key"},
 217 # endif
 218 # ifndef OPENSSL_NO_DES
 219     {"des3-wrap", OPT_3DES_WRAP, '-', "Use 3DES-EDE to wrap key"},
 220 # endif
 221 # ifndef OPENSSL_NO_ENGINE
 222     {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
 223 # endif
 224     {NULL}
 225 };
 226
 227 int cms_main(int argc, char **argv)
 228 {
 229     ASN1_OBJECT *econtent_type = NULL;
 230     BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL;
 231     CMS_ContentInfo *cms = NULL, *rcms = NULL;
 232     CMS_ReceiptRequest *rr = NULL;
 233     ENGINE *e = NULL;
 234     EVP_PKEY *key = NULL;
 235     const EVP_CIPHER *cipher = NULL, *wrap_cipher = NULL;
 236     const EVP_MD *sign_md = NULL;
 237     STACK_OF(OPENSSL_STRING) *rr_to = NULL, *rr_from = NULL;
 238     STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL;
 239     STACK_OF(X509) *encerts = NULL, *other = NULL;
 240     X509 *cert = NULL, *recip = NULL, *signer = NULL;
 241     X509_STORE *store = NULL;
 242     X509_VERIFY_PARAM *vpm = NULL;
 243     char *certfile = NULL, *keyfile = NULL, *contfile = NULL;
 244     char *CAfile = NULL, *CApath = NULL, *certsoutfile = NULL;
 245     char *infile = NULL, *outfile = NULL, *rctfile = NULL, *inrand = NULL;
 246     char *passinarg = NULL, *passin = NULL, *signerfile = NULL, *recipfile =
 247         NULL;
 248     char *to = NULL, *from = NULL, *subject = NULL, *prog;
 249     cms_key_param *key_first = NULL, *key_param = NULL;
 250     int flags = CMS_DETACHED, noout = 0, print = 0, keyidx = -1, vpmtouched =
 251         0;
 252     int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
 253     int need_rand = 0, operation = 0, ret = 1, rr_print = 0, rr_allorfirst =
 254         -1;
 255     int verify_retcode = 0, rctformat = FORMAT_SMIME, keyform = FORMAT_PEM;
 256     size_t secret_keylen = 0, secret_keyidlen = 0;
 257     unsigned char *pwri_pass = NULL, *pwri_tmp = NULL;
 258     unsigned char *secret_key = NULL, *secret_keyid = NULL;
 259     long ltmp;
 260     OPTION_CHOICE o;
 261
 262     if ((vpm = X509_VERIFY_PARAM_new()) == NULL)
 263         return 1;
 264
 265     prog = opt_init(argc, argv, cms_options);
 266     while ((o = opt_next()) != OPT_EOF) {
 267         switch (o) {
 268         case OPT_EOF:
 269         case OPT_ERR:
 270  opthelp:
 271             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 272             goto end;
 273         case OPT_HELP:
 274             opt_help(cms_options);
 275             ret = 0;
 276             goto end;
 277         case OPT_INFORM:
 278             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
 279                 goto opthelp;
 280             break;
 281         case OPT_OUTFORM:
 282             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
 283                 goto opthelp;
 284             break;
 285         case OPT_OUT:
 286             outfile = opt_arg();
 287             break;
 288         case OPT_ENCRYPT:
 289             operation = SMIME_ENCRYPT;
 290             break;
 291         case OPT_DECRYPT:
 292             operation = SMIME_DECRYPT;
 293             break;
 294         case OPT_SIGN:
 295             operation = SMIME_SIGN;
 296             break;
 297         case OPT_SIGN_RECEIPT:
 298             operation = SMIME_SIGN_RECEIPT;
 299             break;
 300         case OPT_RESIGN:
 301             operation = SMIME_RESIGN;
 302             break;
 303         case OPT_VERIFY:
 304             operation = SMIME_VERIFY;
 305             break;
 306         case OPT_VERIFY_RETCODE:
 307             verify_retcode = 1;
 308             break;
 309         case OPT_VERIFY_RECEIPT:
 310             operation = SMIME_VERIFY_RECEIPT;
 311             rctfile = opt_arg();
 312             break;
 313         case OPT_CMSOUT:
 314             operation = SMIME_CMSOUT;
 315             break;
 316         case OPT_DATA_OUT:
 317             operation = SMIME_DATAOUT;
 318             break;
 319         case OPT_DATA_CREATE:
 320             operation = SMIME_DATA_CREATE;
 321             break;
 322         case OPT_DIGEST_VERIFY:
 323             operation = SMIME_DIGEST_VERIFY;
 324             break;
 325         case OPT_DIGEST_CREATE:
 326             operation = SMIME_DIGEST_CREATE;
 327             break;
 328         case OPT_COMPRESS:
 329             operation = SMIME_COMPRESS;
 330             break;
 331         case OPT_UNCOMPRESS:
 332             operation = SMIME_UNCOMPRESS;
 333             break;
 334         case OPT_ED_DECRYPT:
 335             operation = SMIME_ENCRYPTED_DECRYPT;
 336             break;
 337         case OPT_ED_ENCRYPT:
 338             operation = SMIME_ENCRYPTED_ENCRYPT;
 339             break;
 340         case OPT_DEBUG_DECRYPT:
 341             flags |= CMS_DEBUG_DECRYPT;
 342             break;
 343         case OPT_TEXT:
 344             flags |= CMS_TEXT;
 345             break;
 346         case OPT_ASCIICRLF:
 347             flags |= CMS_ASCIICRLF;
 348             break;
 349         case OPT_NOINTERN:
 350             flags |= CMS_NOINTERN;
 351             break;
 352         case OPT_NOVERIFY:
 353             flags |= CMS_NO_SIGNER_CERT_VERIFY;
 354             break;
 355         case OPT_NOCERTS:
 356             flags |= CMS_NOCERTS;
 357             break;
 358         case OPT_NOATTR:
 359             flags |= CMS_NOATTR;
 360             break;
 361         case OPT_NODETACH:
 362             flags &= ~CMS_DETACHED;
 363             break;
 364         case OPT_NOSMIMECAP:
 365             flags |= CMS_NOSMIMECAP;
 366             break;
 367         case OPT_BINARY:
 368             flags |= CMS_BINARY;
 369             break;
 370         case OPT_KEYID:
 371             flags |= CMS_USE_KEYID;
 372             break;
 373         case OPT_NOSIGS:
 374             flags |= CMS_NOSIGS;
 375             break;
 376         case OPT_NO_CONTENT_VERIFY:
 377             flags |= CMS_NO_CONTENT_VERIFY;
 378             break;
 379         case OPT_NO_ATTR_VERIFY:
 380             flags |= CMS_NO_ATTR_VERIFY;
 381             break;
 382         case OPT_INDEF:
 383             flags |= CMS_STREAM;
 384             break;
 385         case OPT_NOINDEF:
 386             flags &= ~CMS_STREAM;
 387             break;
 388         case OPT_NOOLDMIME:
 389             flags |= CMS_NOOLDMIMETYPE;
 390             break;
 391         case OPT_CRLFEOL:
 392             flags |= CMS_CRLFEOL;
 393             break;
 394         case OPT_NOOUT:
 395             noout = 1;
 396             break;
 397         case OPT_RR_PRINT:
 398             rr_print = 1;
 399             break;
 400         case OPT_RR_ALL:
 401             rr_allorfirst = 0;
 402             break;
 403         case OPT_RR_FIRST:
 404             rr_allorfirst = 1;
 405             break;
 406         case OPT_RCTFORM:
 407             if (rctformat == FORMAT_SMIME)
 408                 rcms = SMIME_read_CMS(rctin, NULL);
 409             else if (rctformat == FORMAT_PEM)
 410                 rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
 411             else if (rctformat == FORMAT_ASN1)
 412                 if (!opt_format(opt_arg(),
 413                                 OPT_FMT_PEMDER | OPT_FMT_SMIME, &rctformat))
 414                     goto opthelp;
 415             break;
 416         case OPT_CERTFILE:
 417             certfile = opt_arg();
 418             break;
 419         case OPT_CAFILE:
 420             CAfile = opt_arg();
 421             break;
 422         case OPT_CAPATH:
 423             CApath = opt_arg();
 424             break;
 425         case OPT_IN:
 426             infile = opt_arg();
 427             break;
 428         case OPT_CONTENT:
 429             contfile = opt_arg();
 430             break;
 431         case OPT_RR_FROM:
 432             if (rr_from == NULL
 433                 && (rr_from = sk_OPENSSL_STRING_new_null()) == NULL)
 434                 goto end;
 435             sk_OPENSSL_STRING_push(rr_from, opt_arg());
 436             break;
 437         case OPT_RR_TO:
 438             if (rr_to == NULL
 439                 && (rr_to = sk_OPENSSL_STRING_new_null()) == NULL)
 440                 goto end;
 441             sk_OPENSSL_STRING_push(rr_to, opt_arg());
 442             break;
 443         case OPT_PRINT:
 444             noout = print = 1;
 445             break;
 446         case OPT_SECRETKEY:
 447             secret_key = string_to_hex(opt_arg(), &ltmp);
 448             if (secret_key == NULL) {
 449                 BIO_printf(bio_err, "Invalid key %s\n", opt_arg());
 450                 goto end;
 451             }
 452             secret_keylen = (size_t)ltmp;
 453             break;
 454         case OPT_SECRETKEYID:
 455             secret_keyid = string_to_hex(opt_arg(), &ltmp);
 456             if (secret_keyid == NULL) {
 457                 BIO_printf(bio_err, "Invalid id %s\n", opt_arg());
 458                 goto opthelp;
 459             }
 460             secret_keyidlen = (size_t)ltmp;
 461             break;
 462         case OPT_PWRI_PASSWORD:
 463             pwri_pass = (unsigned char *)opt_arg();
 464             break;
 465         case OPT_ECONTENT_TYPE:
 466             econtent_type = OBJ_txt2obj(opt_arg(), 0);
 467             if (econtent_type == NULL) {
 468                 BIO_printf(bio_err, "Invalid OID %s\n", opt_arg());
 469                 goto opthelp;
 470             }
 471             break;
 472         case OPT_RAND:
 473             inrand = opt_arg();
 474             need_rand = 1;
 475             break;
 476         case OPT_ENGINE:
 477             e = setup_engine(opt_arg(), 0);
 478             break;
 479         case OPT_PASSIN:
 480             passinarg = opt_arg();
 481             break;
 482         case OPT_TO:
 483             to = opt_arg();
 484             break;
 485         case OPT_FROM:
 486             from = opt_arg();
 487             break;
 488         case OPT_SUBJECT:
 489             subject = opt_arg();
 490             break;
 491         case OPT_CERTSOUT:
 492             certsoutfile = opt_arg();
 493             break;
 494         case OPT_MD:
 495             if (!opt_md(opt_arg(), &sign_md))
 496                 goto end;
 497             break;
 498         case OPT_SIGNER:
 499             /* If previous -signer argument add signer to list */
 500             if (signerfile) {
 501                 if (sksigners == NULL
 502                     && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 503                     goto end;
 504                 sk_OPENSSL_STRING_push(sksigners, signerfile);
 505                 if (keyfile == NULL)
 506                     keyfile = signerfile;
 507                 if (skkeys == NULL
 508                     && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 509                     goto end;
 510                 sk_OPENSSL_STRING_push(skkeys, keyfile);
 511                 keyfile = NULL;
 512             }
 513             signerfile = opt_arg();
 514             break;
 515         case OPT_INKEY:
 516             /* If previous -inkey arument add signer to list */
 517             if (keyfile) {
 518                 if (signerfile == NULL) {
 519                     BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 520                     goto end;
 521                 }
 522                 if (sksigners == NULL
 523                     && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 524                     goto end;
 525                 sk_OPENSSL_STRING_push(sksigners, signerfile);
 526                 signerfile = NULL;
 527                 if (skkeys == NULL
 528                     && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 529                     goto end;
 530                 sk_OPENSSL_STRING_push(skkeys, keyfile);
 531             }
 532             keyfile = opt_arg();
 533             break;
 534         case OPT_KEYFORM:
 535             if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
 536                 goto opthelp;
 537             break;
 538         case OPT_RECIP:
 539             if (operation == SMIME_ENCRYPT) {
 540                 if (encerts == NULL && (encerts = sk_X509_new_null()) == NULL)
 541                     goto end;
 542                 cert = load_cert(opt_arg(), FORMAT_PEM, NULL, e,
 543                                  "recipient certificate file");
 544                 if (cert == NULL)
 545                     goto end;
 546                 sk_X509_push(encerts, cert);
 547                 cert = NULL;
 548             } else
 549                 recipfile = opt_arg();
 550             break;
 551         case OPT_CIPHER:
 552             if (!opt_cipher(opt_unknown(), &cipher))
 553                 goto end;
 554             break;
 555         case OPT_KEYOPT:
 556             keyidx = -1;
 557             if (operation == SMIME_ENCRYPT) {
 558                 if (encerts)
 559                     keyidx += sk_X509_num(encerts);
 560             } else {
 561                 if (keyfile || signerfile)
 562                     keyidx++;
 563                 if (skkeys)
 564                     keyidx += sk_OPENSSL_STRING_num(skkeys);
 565             }
 566             if (keyidx < 0) {
 567                 BIO_printf(bio_err, "No key specified\n");
 568                 goto opthelp;
 569             }
 570             if (key_param == NULL || key_param->idx != keyidx) {
 571                 cms_key_param *nparam;
 572                 nparam = app_malloc(sizeof(*nparam), "key param buffer");
 573                 nparam->idx = keyidx;
 574                 if ((nparam->param = sk_OPENSSL_STRING_new_null()) == NULL)
 575                     goto end;
 576                 nparam->next = NULL;
 577                 if (key_first == NULL)
 578                     key_first = nparam;
 579                 else
 580                     key_param->next = nparam;
 581                 key_param = nparam;
 582             }
 583             sk_OPENSSL_STRING_push(key_param->param, opt_arg());
 584             break;
 585         case OPT_V_CASES:
 586             if (!opt_verify(o, vpm))
 587                 goto end;
 588             vpmtouched++;
 589             break;
 590         case OPT_3DES_WRAP:
 591 # ifndef OPENSSL_NO_DES
 592             wrap_cipher = EVP_des_ede3_wrap();
 593 # endif
 594             break;
 595 # ifndef OPENSSL_NO_AES
 596         case OPT_AES128_WRAP:
 597             wrap_cipher = EVP_aes_128_wrap();
 598             break;
 599         case OPT_AES192_WRAP:
 600             wrap_cipher = EVP_aes_192_wrap();
 601             break;
 602         case OPT_AES256_WRAP:
 603             wrap_cipher = EVP_aes_256_wrap();
 604             break;
 605 # else
 606         case OPT_AES128_WRAP:
 607         case OPT_AES192_WRAP:
 608         case OPT_AES256_WRAP:
 609             break;
 610 # endif
 611         }
 612     }
 613     argc = opt_num_rest();
 614     argv = opt_rest();
 615
 616     if (((rr_allorfirst != -1) || rr_from) && !rr_to) {
 617         BIO_puts(bio_err, "No Signed Receipts Recipients\n");
 618         goto opthelp;
 619     }
 620
 621     if (!(operation & SMIME_SIGNERS) && (rr_to || rr_from)) {
 622         BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
 623         goto opthelp;
 624     }
 625     if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) {
 626         BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
 627         goto opthelp;
 628     }
 629
 630     if (operation & SMIME_SIGNERS) {
 631         if (keyfile && !signerfile) {
 632             BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 633             goto opthelp;
 634         }
 635         /* Check to see if any final signer needs to be appended */
 636         if (signerfile) {
 637             if (!sksigners
 638                 && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 639                 goto end;
 640             sk_OPENSSL_STRING_push(sksigners, signerfile);
 641             if (!skkeys && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 642                 goto end;
 643             if (!keyfile)
 644                 keyfile = signerfile;
 645             sk_OPENSSL_STRING_push(skkeys, keyfile);
 646         }
 647         if (!sksigners) {
 648             BIO_printf(bio_err, "No signer certificate specified\n");
 649             goto opthelp;
 650         }
 651         signerfile = NULL;
 652         keyfile = NULL;
 653         need_rand = 1;
 654     }
 655
 656     else if (operation == SMIME_DECRYPT) {
 657         if (!recipfile && !keyfile && !secret_key && !pwri_pass) {
 658             BIO_printf(bio_err,
 659                        "No recipient certificate or key specified\n");
 660             goto opthelp;
 661         }
 662     } else if (operation == SMIME_ENCRYPT) {
 663         if (*argv == NULL && !secret_key && !pwri_pass && !encerts) {
 664             BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
 665             goto opthelp;
 666         }
 667         need_rand = 1;
 668     } else if (!operation)
 669         goto opthelp;
 670
 671     if (!app_passwd(passinarg, NULL, &passin, NULL)) {
 672         BIO_printf(bio_err, "Error getting password\n");
 673         goto end;
 674     }
 675
 676     if (!app_load_modules(NULL))
 677         goto end;
 678
 679     if (need_rand) {
 680         app_RAND_load_file(NULL, (inrand != NULL));
 681         if (inrand != NULL)
 682             BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
 683                        app_RAND_load_files(inrand));
 684     }
 685
 686     ret = 2;
 687
 688     if (!(operation & SMIME_SIGNERS))
 689         flags &= ~CMS_DETACHED;
 690
 691     if (!(operation & SMIME_OP)) {
 692         if (flags & CMS_BINARY)
 693             outformat = FORMAT_BINARY;
 694     }
 695
 696     if (!(operation & SMIME_IP)) {
 697         if (flags & CMS_BINARY)
 698             informat = FORMAT_BINARY;
 699     }
 700
 701     if (operation == SMIME_ENCRYPT) {
 702         if (!cipher) {
 703 # ifndef OPENSSL_NO_DES
 704             cipher = EVP_des_ede3_cbc();
 705 # else
 706             BIO_printf(bio_err, "No cipher selected\n");
 707             goto end;
 708 # endif
 709         }
 710
 711         if (secret_key && !secret_keyid) {
 712             BIO_printf(bio_err, "No secret key id\n");
 713             goto end;
 714         }
 715
 716         if (*argv && !encerts)
 717             if ((encerts = sk_X509_new_null()) == NULL)
 718                 goto end;
 719         while (*argv) {
 720             if ((cert = load_cert(*argv, FORMAT_PEM, NULL, e,
 721                                   "recipient certificate file")) == NULL)
 722                 goto end;
 723             sk_X509_push(encerts, cert);
 724             cert = NULL;
 725             argv++;
 726         }
 727     }
 728
 729     if (certfile) {
 730         if ((other = load_certs(certfile, FORMAT_PEM, NULL, e,
 731                                 "certificate file")) == NULL) {
 732             ERR_print_errors(bio_err);
 733             goto end;
 734         }
 735     }
 736
 737     if (recipfile && (operation == SMIME_DECRYPT)) {
 738         if ((recip = load_cert(recipfile, FORMAT_PEM, NULL, e,
 739                                "recipient certificate file")) == NULL) {
 740             ERR_print_errors(bio_err);
 741             goto end;
 742         }
 743     }
 744
 745     if (operation == SMIME_SIGN_RECEIPT) {
 746         if ((signer = load_cert(signerfile, FORMAT_PEM, NULL, e,
 747                                 "receipt signer certificate file")) == NULL) {
 748             ERR_print_errors(bio_err);
 749             goto end;
 750         }
 751     }
 752
 753     if (operation == SMIME_DECRYPT) {
 754         if (!keyfile)
 755             keyfile = recipfile;
 756     } else if ((operation == SMIME_SIGN) || (operation == SMIME_SIGN_RECEIPT)) {
 757         if (!keyfile)
 758             keyfile = signerfile;
 759     } else
 760         keyfile = NULL;
 761
 762     if (keyfile) {
 763         key = load_key(keyfile, keyform, 0, passin, e, "signing key file");
 764         if (!key)
 765             goto end;
 766     }
 767
 768     in = bio_open_default(infile, 'r', informat);
 769     if (in == NULL)
 770         goto end;
 771
 772     if (operation & SMIME_IP) {
 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             BIO_printf(bio_err, "Bad input format for CMS file\n");
 781             goto end;
 782         }
 783
 784         if (!cms) {
 785             BIO_printf(bio_err, "Error reading S/MIME message\n");
 786             goto end;
 787         }
 788         if (contfile) {
 789             BIO_free(indata);
 790             if ((indata = BIO_new_file(contfile, "rb")) == NULL) {
 791                 BIO_printf(bio_err, "Can't read content file %s\n", contfile);
 792                 goto end;
 793             }
 794         }
 795         if (certsoutfile) {
 796             STACK_OF(X509) *allcerts;
 797             allcerts = CMS_get1_certs(cms);
 798             if (!save_certs(certsoutfile, allcerts)) {
 799                 BIO_printf(bio_err,
 800                            "Error writing certs to %s\n", certsoutfile);
 801                 ret = 5;
 802                 goto end;
 803             }
 804             sk_X509_pop_free(allcerts, X509_free);
 805         }
 806     }
 807
 808     if (rctfile) {
 809         char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r";
 810         if ((rctin = BIO_new_file(rctfile, rctmode)) == NULL) {
 811             BIO_printf(bio_err, "Can't open receipt file %s\n", rctfile);
 812             goto end;
 813         }
 814
 815         if (rctformat == FORMAT_SMIME)
 816             rcms = SMIME_read_CMS(rctin, NULL);
 817         else if (rctformat == FORMAT_PEM)
 818             rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
 819         else if (rctformat == FORMAT_ASN1)
 820             rcms = d2i_CMS_bio(rctin, NULL);
 821         else {
 822             BIO_printf(bio_err, "Bad input format for receipt\n");
 823             goto end;
 824         }
 825
 826         if (!rcms) {
 827             BIO_printf(bio_err, "Error reading receipt\n");
 828             goto end;
 829         }
 830     }
 831
 832     out = bio_open_default(outfile, 'w', outformat);
 833     if (out == NULL)
 834         goto end;
 835
 836     if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT)) {
 837         if ((store = setup_verify(CAfile, CApath)) == NULL)
 838             goto end;
 839         X509_STORE_set_verify_cb(store, cms_cb);
 840         if (vpmtouched)
 841             X509_STORE_set1_param(store, vpm);
 842     }
 843
 844     ret = 3;
 845
 846     if (operation == SMIME_DATA_CREATE) {
 847         cms = CMS_data_create(in, flags);
 848     } else if (operation == SMIME_DIGEST_CREATE) {
 849         cms = CMS_digest_create(in, sign_md, flags);
 850     } else if (operation == SMIME_COMPRESS) {
 851         cms = CMS_compress(in, -1, flags);
 852     } else if (operation == SMIME_ENCRYPT) {
 853         int i;
 854         flags |= CMS_PARTIAL;
 855         cms = CMS_encrypt(NULL, in, cipher, flags);
 856         if (!cms)
 857             goto end;
 858         for (i = 0; i < sk_X509_num(encerts); i++) {
 859             CMS_RecipientInfo *ri;
 860             cms_key_param *kparam;
 861             int tflags = flags;
 862             X509 *x = sk_X509_value(encerts, i);
 863             for (kparam = key_first; kparam; kparam = kparam->next) {
 864                 if (kparam->idx == i) {
 865                     tflags |= CMS_KEY_PARAM;
 866                     break;
 867                 }
 868             }
 869             ri = CMS_add1_recipient_cert(cms, x, tflags);
 870             if (!ri)
 871                 goto end;
 872             if (kparam) {
 873                 EVP_PKEY_CTX *pctx;
 874                 pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
 875                 if (!cms_set_pkey_param(pctx, kparam->param))
 876                     goto end;
 877             }
 878             if (CMS_RecipientInfo_type(ri) == CMS_RECIPINFO_AGREE
 879                 && wrap_cipher) {
 880                 EVP_CIPHER_CTX *wctx;
 881                 wctx = CMS_RecipientInfo_kari_get0_ctx(ri);
 882                 EVP_EncryptInit_ex(wctx, wrap_cipher, NULL, NULL, NULL);
 883             }
 884         }
 885
 886         if (secret_key) {
 887             if (!CMS_add0_recipient_key(cms, NID_undef,
 888                                         secret_key, secret_keylen,
 889                                         secret_keyid, secret_keyidlen,
 890                                         NULL, NULL, NULL))
 891                 goto end;
 892             /* NULL these because call absorbs them */
 893             secret_key = NULL;
 894             secret_keyid = NULL;
 895         }
 896         if (pwri_pass) {
 897             pwri_tmp = (unsigned char *)BUF_strdup((char *)pwri_pass);
 898             if (!pwri_tmp)
 899                 goto end;
 900             if (!CMS_add0_recipient_password(cms,
 901                                              -1, NID_undef, NID_undef,
 902                                              pwri_tmp, -1, NULL))
 903                 goto end;
 904             pwri_tmp = NULL;
 905         }
 906         if (!(flags & CMS_STREAM)) {
 907             if (!CMS_final(cms, in, NULL, flags))
 908                 goto end;
 909         }
 910     } else if (operation == SMIME_ENCRYPTED_ENCRYPT) {
 911         cms = CMS_EncryptedData_encrypt(in, cipher,
 912                                         secret_key, secret_keylen, flags);
 913
 914     } else if (operation == SMIME_SIGN_RECEIPT) {
 915         CMS_ContentInfo *srcms = NULL;
 916         STACK_OF(CMS_SignerInfo) *sis;
 917         CMS_SignerInfo *si;
 918         sis = CMS_get0_SignerInfos(cms);
 919         if (!sis)
 920             goto end;
 921         si = sk_CMS_SignerInfo_value(sis, 0);
 922         srcms = CMS_sign_receipt(si, signer, key, other, flags);
 923         if (!srcms)
 924             goto end;
 925         CMS_ContentInfo_free(cms);
 926         cms = srcms;
 927     } else if (operation & SMIME_SIGNERS) {
 928         int i;
 929         /*
 930          * If detached data content we enable streaming if S/MIME output
 931          * format.
 932          */
 933         if (operation == SMIME_SIGN) {
 934
 935             if (flags & CMS_DETACHED) {
 936                 if (outformat == FORMAT_SMIME)
 937                     flags |= CMS_STREAM;
 938             }
 939             flags |= CMS_PARTIAL;
 940             cms = CMS_sign(NULL, NULL, other, in, flags);
 941             if (!cms)
 942                 goto end;
 943             if (econtent_type)
 944                 CMS_set1_eContentType(cms, econtent_type);
 945
 946             if (rr_to) {
 947                 rr = make_receipt_request(rr_to, rr_allorfirst, rr_from);
 948                 if (!rr) {
 949                     BIO_puts(bio_err,
 950                              "Signed Receipt Request Creation Error\n");
 951                     goto end;
 952                 }
 953             }
 954         } else
 955             flags |= CMS_REUSE_DIGEST;
 956         for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
 957             CMS_SignerInfo *si;
 958             cms_key_param *kparam;
 959             int tflags = flags;
 960             signerfile = sk_OPENSSL_STRING_value(sksigners, i);
 961             keyfile = sk_OPENSSL_STRING_value(skkeys, i);
 962
 963             signer = load_cert(signerfile, FORMAT_PEM, NULL,
 964                                e, "signer certificate");
 965             if (!signer)
 966                 goto end;
 967             key = load_key(keyfile, keyform, 0, passin, e, "signing key file");
 968             if (!key)
 969                 goto end;
 970             for (kparam = key_first; kparam; kparam = kparam->next) {
 971                 if (kparam->idx == i) {
 972                     tflags |= CMS_KEY_PARAM;
 973                     break;
 974                 }
 975             }
 976             si = CMS_add1_signer(cms, signer, key, sign_md, tflags);
 977             if (!si)
 978                 goto end;
 979             if (kparam) {
 980                 EVP_PKEY_CTX *pctx;
 981                 pctx = CMS_SignerInfo_get0_pkey_ctx(si);
 982                 if (!cms_set_pkey_param(pctx, kparam->param))
 983                     goto end;
 984             }
 985             if (rr && !CMS_add1_ReceiptRequest(si, rr))
 986                 goto end;
 987             X509_free(signer);
 988             signer = NULL;
 989             EVP_PKEY_free(key);
 990             key = NULL;
 991         }
 992         /* If not streaming or resigning finalize structure */
 993         if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) {
 994             if (!CMS_final(cms, in, NULL, flags))
 995                 goto end;
 996         }
 997     }
 998
 999     if (!cms) {
1000         BIO_printf(bio_err, "Error creating CMS structure\n");
1001         goto end;
1002     }
1003
1004     ret = 4;
1005     if (operation == SMIME_DECRYPT) {
1006         if (flags & CMS_DEBUG_DECRYPT)
1007             CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
1008
1009         if (secret_key) {
1010             if (!CMS_decrypt_set1_key(cms,
1011                                       secret_key, secret_keylen,
1012                                       secret_keyid, secret_keyidlen)) {
1013                 BIO_puts(bio_err, "Error decrypting CMS using secret key\n");
1014                 goto end;
1015             }
1016         }
1017
1018         if (key) {
1019             if (!CMS_decrypt_set1_pkey(cms, key, recip)) {
1020                 BIO_puts(bio_err, "Error decrypting CMS using private key\n");
1021                 goto end;
1022             }
1023         }
1024
1025         if (pwri_pass) {
1026             if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) {
1027                 BIO_puts(bio_err, "Error decrypting CMS using password\n");
1028                 goto end;
1029             }
1030         }
1031
1032         if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) {
1033             BIO_printf(bio_err, "Error decrypting CMS structure\n");
1034             goto end;
1035         }
1036     } else if (operation == SMIME_DATAOUT) {
1037         if (!CMS_data(cms, out, flags))
1038             goto end;
1039     } else if (operation == SMIME_UNCOMPRESS) {
1040         if (!CMS_uncompress(cms, indata, out, flags))
1041             goto end;
1042     } else if (operation == SMIME_DIGEST_VERIFY) {
1043         if (CMS_digest_verify(cms, indata, out, flags) > 0)
1044             BIO_printf(bio_err, "Verification successful\n");
1045         else {
1046             BIO_printf(bio_err, "Verification failure\n");
1047             goto end;
1048         }
1049     } else if (operation == SMIME_ENCRYPTED_DECRYPT) {
1050         if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
1051                                        indata, out, flags))
1052             goto end;
1053     } else if (operation == SMIME_VERIFY) {
1054         if (CMS_verify(cms, other, store, indata, out, flags) > 0)
1055             BIO_printf(bio_err, "Verification successful\n");
1056         else {
1057             BIO_printf(bio_err, "Verification failure\n");
1058             if (verify_retcode)
1059                 ret = verify_err + 32;
1060             goto end;
1061         }
1062         if (signerfile) {
1063             STACK_OF(X509) *signers;
1064             signers = CMS_get0_signers(cms);
1065             if (!save_certs(signerfile, signers)) {
1066                 BIO_printf(bio_err,
1067                            "Error writing signers to %s\n", signerfile);
1068                 ret = 5;
1069                 goto end;
1070             }
1071             sk_X509_free(signers);
1072         }
1073         if (rr_print)
1074             receipt_request_print(cms);
1075
1076     } else if (operation == SMIME_VERIFY_RECEIPT) {
1077         if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0)
1078             BIO_printf(bio_err, "Verification successful\n");
1079         else {
1080             BIO_printf(bio_err, "Verification failure\n");
1081             goto end;
1082         }
1083     } else {
1084         if (noout) {
1085             if (print)
1086                 CMS_ContentInfo_print_ctx(out, cms, 0, NULL);
1087         } else if (outformat == FORMAT_SMIME) {
1088             if (to)
1089                 BIO_printf(out, "To: %s\n", to);
1090             if (from)
1091                 BIO_printf(out, "From: %s\n", from);
1092             if (subject)
1093                 BIO_printf(out, "Subject: %s\n", subject);
1094             if (operation == SMIME_RESIGN)
1095                 ret = SMIME_write_CMS(out, cms, indata, flags);
1096             else
1097                 ret = SMIME_write_CMS(out, cms, in, flags);
1098         } else if (outformat == FORMAT_PEM)
1099             ret = PEM_write_bio_CMS_stream(out, cms, in, flags);
1100         else if (outformat == FORMAT_ASN1)
1101             ret = i2d_CMS_bio_stream(out, cms, in, flags);
1102         else {
1103             BIO_printf(bio_err, "Bad output format for CMS file\n");
1104             goto end;
1105         }
1106         if (ret <= 0) {
1107             ret = 6;
1108             goto end;
1109         }
1110     }
1111     ret = 0;
1112  end:
1113     if (ret)
1114         ERR_print_errors(bio_err);
1115     if (need_rand)
1116         app_RAND_write_file(NULL);
1117     sk_X509_pop_free(encerts, X509_free);
1118     sk_X509_pop_free(other, X509_free);
1119     X509_VERIFY_PARAM_free(vpm);
1120     sk_OPENSSL_STRING_free(sksigners);
1121     sk_OPENSSL_STRING_free(skkeys);
1122     OPENSSL_free(secret_key);
1123     OPENSSL_free(secret_keyid);
1124     OPENSSL_free(pwri_tmp);
1125     ASN1_OBJECT_free(econtent_type);
1126     CMS_ReceiptRequest_free(rr);
1127     sk_OPENSSL_STRING_free(rr_to);
1128     sk_OPENSSL_STRING_free(rr_from);
1129     for (key_param = key_first; key_param;) {
1130         cms_key_param *tparam;
1131         sk_OPENSSL_STRING_free(key_param->param);
1132         tparam = key_param->next;
1133         OPENSSL_free(key_param);
1134         key_param = tparam;
1135     }
1136     X509_STORE_free(store);
1137     X509_free(cert);
1138     X509_free(recip);
1139     X509_free(signer);
1140     EVP_PKEY_free(key);
1141     CMS_ContentInfo_free(cms);
1142     CMS_ContentInfo_free(rcms);
1143     BIO_free(rctin);
1144     BIO_free(in);
1145     BIO_free(indata);
1146     BIO_free_all(out);
1147     OPENSSL_free(passin);
1148     return (ret);
1149 }
1150
1151 static int save_certs(char *signerfile, STACK_OF(X509) *signers)
1152 {
1153     int i;
1154     BIO *tmp;
1155     if (!signerfile)
1156         return 1;
1157     tmp = BIO_new_file(signerfile, "w");
1158     if (!tmp)
1159         return 0;
1160     for (i = 0; i < sk_X509_num(signers); i++)
1161         PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
1162     BIO_free(tmp);
1163     return 1;
1164 }
1165
1166 /* Minimal callback just to output policy info (if any) */
1167
1168 static int cms_cb(int ok, X509_STORE_CTX *ctx)
1169 {
1170     int error;
1171
1172     error = X509_STORE_CTX_get_error(ctx);
1173
1174     verify_err = error;
1175
1176     if ((error != X509_V_ERR_NO_EXPLICIT_POLICY)
1177         && ((error != X509_V_OK) || (ok != 2)))
1178         return ok;
1179
1180     policies_print(ctx);
1181
1182     return ok;
1183
1184 }
1185
1186 static void gnames_stack_print(STACK_OF(GENERAL_NAMES) *gns)
1187 {
1188     STACK_OF(GENERAL_NAME) *gens;
1189     GENERAL_NAME *gen;
1190     int i, j;
1191
1192     for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) {
1193         gens = sk_GENERAL_NAMES_value(gns, i);
1194         for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) {
1195             gen = sk_GENERAL_NAME_value(gens, j);
1196             BIO_puts(bio_err, "    ");
1197             GENERAL_NAME_print(bio_err, gen);
1198             BIO_puts(bio_err, "\n");
1199         }
1200     }
1201     return;
1202 }
1203
1204 static void receipt_request_print(CMS_ContentInfo *cms)
1205 {
1206     STACK_OF(CMS_SignerInfo) *sis;
1207     CMS_SignerInfo *si;
1208     CMS_ReceiptRequest *rr;
1209     int allorfirst;
1210     STACK_OF(GENERAL_NAMES) *rto, *rlist;
1211     ASN1_STRING *scid;
1212     int i, rv;
1213     sis = CMS_get0_SignerInfos(cms);
1214     for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) {
1215         si = sk_CMS_SignerInfo_value(sis, i);
1216         rv = CMS_get1_ReceiptRequest(si, &rr);
1217         BIO_printf(bio_err, "Signer %d:\n", i + 1);
1218         if (rv == 0)
1219             BIO_puts(bio_err, "  No Receipt Request\n");
1220         else if (rv < 0) {
1221             BIO_puts(bio_err, "  Receipt Request Parse Error\n");
1222             ERR_print_errors(bio_err);
1223         } else {
1224             char *id;
1225             int idlen;
1226             CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
1227                                            &rlist, &rto);
1228             BIO_puts(bio_err, "  Signed Content ID:\n");
1229             idlen = ASN1_STRING_length(scid);
1230             id = (char *)ASN1_STRING_data(scid);
1231             BIO_dump_indent(bio_err, id, idlen, 4);
1232             BIO_puts(bio_err, "  Receipts From");
1233             if (rlist) {
1234                 BIO_puts(bio_err, " List:\n");
1235                 gnames_stack_print(rlist);
1236             } else if (allorfirst == 1)
1237                 BIO_puts(bio_err, ": First Tier\n");
1238             else if (allorfirst == 0)
1239                 BIO_puts(bio_err, ": All\n");
1240             else
1241                 BIO_printf(bio_err, " Unknown (%d)\n", allorfirst);
1242             BIO_puts(bio_err, "  Receipts To:\n");
1243             gnames_stack_print(rto);
1244         }
1245         CMS_ReceiptRequest_free(rr);
1246     }
1247 }
1248
1249 static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK_OF(OPENSSL_STRING) *ns)
1250 {
1251     int i;
1252     STACK_OF(GENERAL_NAMES) *ret;
1253     GENERAL_NAMES *gens = NULL;
1254     GENERAL_NAME *gen = NULL;
1255     ret = sk_GENERAL_NAMES_new_null();
1256     if (!ret)
1257         goto err;
1258     for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++) {
1259         char *str = sk_OPENSSL_STRING_value(ns, i);
1260         gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0);
1261         if (!gen)
1262             goto err;
1263         gens = GENERAL_NAMES_new();
1264         if (!gens)
1265             goto err;
1266         if (!sk_GENERAL_NAME_push(gens, gen))
1267             goto err;
1268         gen = NULL;
1269         if (!sk_GENERAL_NAMES_push(ret, gens))
1270             goto err;
1271         gens = NULL;
1272     }
1273
1274     return ret;
1275
1276  err:
1277     sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
1278     GENERAL_NAMES_free(gens);
1279     GENERAL_NAME_free(gen);
1280     return NULL;
1281 }
1282
1283 static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING)
1284                                                 *rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING)
1285                                                 *rr_from)
1286 {
1287     STACK_OF(GENERAL_NAMES) *rct_to, *rct_from;
1288     CMS_ReceiptRequest *rr;
1289     rct_to = make_names_stack(rr_to);
1290     if (!rct_to)
1291         goto err;
1292     if (rr_from) {
1293         rct_from = make_names_stack(rr_from);
1294         if (!rct_from)
1295             goto err;
1296     } else
1297         rct_from = NULL;
1298     rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from,
1299                                     rct_to);
1300     return rr;
1301  err:
1302     return NULL;
1303 }
1304
1305 static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
1306                               STACK_OF(OPENSSL_STRING) *param)
1307 {
1308     char *keyopt;
1309     int i;
1310     if (sk_OPENSSL_STRING_num(param) <= 0)
1311         return 1;
1312     for (i = 0; i < sk_OPENSSL_STRING_num(param); i++) {
1313         keyopt = sk_OPENSSL_STRING_value(param, i);
1314         if (pkey_ctrl_string(pctx, keyopt) <= 0) {
1315             BIO_printf(bio_err, "parameter error \"%s\"\n", keyopt);
1316             ERR_print_errors(bio_err);
1317             return 0;
1318         }
1319     }
1320     return 1;
1321 }
1322
1323 #endif