apps/cms.c

   1 /*
   2  * Copyright 2008-2019 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 /* CMS utility function */
  11
  12 #include <stdio.h>
  13 #include <string.h>
  14 #include "apps.h"
  15 #include "progs.h"
  16
  17 #ifndef OPENSSL_NO_CMS
  18
  19 # include <openssl/crypto.h>
  20 # include <openssl/pem.h>
  21 # include <openssl/err.h>
  22 # include <openssl/x509_vfy.h>
  23 # include <openssl/x509v3.h>
  24 # include <openssl/cms.h>
  25
  26 static int save_certs(char *signerfile, STACK_OF(X509) *signers);
  27 static int cms_cb(int ok, X509_STORE_CTX *ctx);
  28 static void receipt_request_print(CMS_ContentInfo *cms);
  29 static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING)
  30                                                 *rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING)
  31                                                 *rr_from);
  32 static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
  33                               STACK_OF(OPENSSL_STRING) *param);
  34
  35 # define SMIME_OP        0x10
  36 # define SMIME_IP        0x20
  37 # define SMIME_SIGNERS   0x40
  38 # define SMIME_ENCRYPT           (1 | SMIME_OP)
  39 # define SMIME_DECRYPT           (2 | SMIME_IP)
  40 # define SMIME_SIGN              (3 | SMIME_OP | SMIME_SIGNERS)
  41 # define SMIME_VERIFY            (4 | SMIME_IP)
  42 # define SMIME_CMSOUT            (5 | SMIME_IP | SMIME_OP)
  43 # define SMIME_RESIGN            (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS)
  44 # define SMIME_DATAOUT           (7 | SMIME_IP)
  45 # define SMIME_DATA_CREATE       (8 | SMIME_OP)
  46 # define SMIME_DIGEST_VERIFY     (9 | SMIME_IP)
  47 # define SMIME_DIGEST_CREATE     (10 | SMIME_OP)
  48 # define SMIME_UNCOMPRESS        (11 | SMIME_IP)
  49 # define SMIME_COMPRESS          (12 | SMIME_OP)
  50 # define SMIME_ENCRYPTED_DECRYPT (13 | SMIME_IP)
  51 # define SMIME_ENCRYPTED_ENCRYPT (14 | SMIME_OP)
  52 # define SMIME_SIGN_RECEIPT      (15 | SMIME_IP | SMIME_OP)
  53 # define SMIME_VERIFY_RECEIPT    (16 | SMIME_IP)
  54
  55 static int verify_err = 0;
  56
  57 typedef struct cms_key_param_st cms_key_param;
  58
  59 struct cms_key_param_st {
  60     int idx;
  61     STACK_OF(OPENSSL_STRING) *param;
  62     cms_key_param *next;
  63 };
  64
  65 typedef enum OPTION_choice {
  66     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
  67     OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_ENCRYPT,
  68     OPT_DECRYPT, OPT_SIGN, OPT_CADES, OPT_SIGN_RECEIPT, OPT_RESIGN,
  69     OPT_VERIFY, OPT_VERIFY_RETCODE, OPT_VERIFY_RECEIPT,
  70     OPT_CMSOUT, OPT_DATA_OUT, OPT_DATA_CREATE, OPT_DIGEST_VERIFY,
  71     OPT_DIGEST_CREATE, OPT_COMPRESS, OPT_UNCOMPRESS,
  72     OPT_ED_DECRYPT, OPT_ED_ENCRYPT, OPT_DEBUG_DECRYPT, OPT_TEXT,
  73     OPT_ASCIICRLF, OPT_NOINTERN, OPT_NOVERIFY, OPT_NOCERTS,
  74     OPT_NOATTR, OPT_NODETACH, OPT_NOSMIMECAP, OPT_BINARY, OPT_KEYID,
  75     OPT_NOSIGS, OPT_NO_CONTENT_VERIFY, OPT_NO_ATTR_VERIFY, OPT_INDEF,
  76     OPT_NOINDEF, OPT_CRLFEOL, OPT_NOOUT, OPT_RR_PRINT,
  77     OPT_RR_ALL, OPT_RR_FIRST, OPT_RCTFORM, OPT_CERTFILE, OPT_CAFILE,
  78     OPT_CAPATH, OPT_NOCAPATH, OPT_NOCAFILE,OPT_CONTENT, OPT_PRINT,
  79     OPT_SECRETKEY, OPT_SECRETKEYID, OPT_PWRI_PASSWORD, OPT_ECONTENT_TYPE,
  80     OPT_PASSIN, OPT_TO, OPT_FROM, OPT_SUBJECT, OPT_SIGNER, OPT_RECIP,
  81     OPT_CERTSOUT, OPT_MD, OPT_INKEY, OPT_KEYFORM, OPT_KEYOPT, OPT_RR_FROM,
  82     OPT_RR_TO, OPT_AES128_WRAP, OPT_AES192_WRAP, OPT_AES256_WRAP,
  83     OPT_3DES_WRAP, OPT_ENGINE,
  84     OPT_R_ENUM,
  85     OPT_V_ENUM,
  86     OPT_CIPHER
  87 } OPTION_CHOICE;
  88
  89 const OPTIONS cms_options[] = {
  90     {OPT_HELP_STR, 1, '-', "Usage: %s [options] cert.pem...\n"},
  91     {OPT_HELP_STR, 1, '-',
  92         "  cert.pem... recipient certs for encryption\n"},
  93     {OPT_HELP_STR, 1, '-', "Valid options are:\n"},
  94     {"help", OPT_HELP, '-', "Display this summary"},
  95     {"inform", OPT_INFORM, 'c', "Input format SMIME (default), PEM or DER"},
  96     {"outform", OPT_OUTFORM, 'c',
  97      "Output format SMIME (default), PEM or DER"},
  98     {"in", OPT_IN, '<', "Input file"},
  99     {"out", OPT_OUT, '>', "Output file"},
 100     {"encrypt", OPT_ENCRYPT, '-', "Encrypt message"},
 101     {"decrypt", OPT_DECRYPT, '-', "Decrypt encrypted message"},
 102     {"sign", OPT_SIGN, '-', "Sign message"},
 103     {"sign_receipt", OPT_SIGN_RECEIPT, '-', "Generate a signed receipt for the message"},
 104     {"resign", OPT_RESIGN, '-', "Resign a signed message"},
 105     {"cades", OPT_CADES, '-', "Include signer certificate digest"},
 106     {"verify", OPT_VERIFY, '-', "Verify signed message"},
 107     {"verify_retcode", OPT_VERIFY_RETCODE, '-'},
 108     {"verify_receipt", OPT_VERIFY_RECEIPT, '<'},
 109     {"cmsout", OPT_CMSOUT, '-', "Output CMS structure"},
 110     {"data_out", OPT_DATA_OUT, '-'},
 111     {"data_create", OPT_DATA_CREATE, '-'},
 112     {"digest_verify", OPT_DIGEST_VERIFY, '-'},
 113     {"digest_create", OPT_DIGEST_CREATE, '-'},
 114     {"compress", OPT_COMPRESS, '-'},
 115     {"uncompress", OPT_UNCOMPRESS, '-'},
 116     {"EncryptedData_decrypt", OPT_ED_DECRYPT, '-'},
 117     {"EncryptedData_encrypt", OPT_ED_ENCRYPT, '-'},
 118     {"debug_decrypt", OPT_DEBUG_DECRYPT, '-'},
 119     {"text", OPT_TEXT, '-', "Include or delete text MIME headers"},
 120     {"asciicrlf", OPT_ASCIICRLF, '-'},
 121     {"nointern", OPT_NOINTERN, '-',
 122      "Don't search certificates in message for signer"},
 123     {"noverify", OPT_NOVERIFY, '-', "Don't verify signers certificate"},
 124     {"nocerts", OPT_NOCERTS, '-',
 125      "Don't include signers certificate when signing"},
 126     {"noattr", OPT_NOATTR, '-', "Don't include any signed attributes"},
 127     {"nodetach", OPT_NODETACH, '-', "Use opaque signing"},
 128     {"nosmimecap", OPT_NOSMIMECAP, '-', "Omit the SMIMECapabilities attribute"},
 129     {"binary", OPT_BINARY, '-', "Don't translate message to text"},
 130     {"keyid", OPT_KEYID, '-', "Use subject key identifier"},
 131     {"nosigs", OPT_NOSIGS, '-', "Don't verify message signature"},
 132     {"no_content_verify", OPT_NO_CONTENT_VERIFY, '-'},
 133     {"no_attr_verify", OPT_NO_ATTR_VERIFY, '-'},
 134     {"stream", OPT_INDEF, '-', "Enable CMS streaming"},
 135     {"indef", OPT_INDEF, '-', "Same as -stream"},
 136     {"noindef", OPT_NOINDEF, '-', "Disable CMS streaming"},
 137     {"crlfeol", OPT_CRLFEOL, '-', "Use CRLF as EOL termination instead of CR only" },
 138     {"noout", OPT_NOOUT, '-', "For the -cmsout operation do not output the parsed CMS structure"},
 139     {"receipt_request_print", OPT_RR_PRINT, '-', "Print CMS Receipt Request" },
 140     {"receipt_request_all", OPT_RR_ALL, '-'},
 141     {"receipt_request_first", OPT_RR_FIRST, '-'},
 142     {"rctform", OPT_RCTFORM, 'F', "Receipt file format"},
 143     {"certfile", OPT_CERTFILE, '<', "Other certificates file"},
 144     {"CAfile", OPT_CAFILE, '<', "Trusted certificates file"},
 145     {"CApath", OPT_CAPATH, '/', "trusted certificates directory"},
 146     {"no-CAfile", OPT_NOCAFILE, '-',
 147      "Do not load the default certificates file"},
 148     {"no-CApath", OPT_NOCAPATH, '-',
 149      "Do not load certificates from the default certificates directory"},
 150     {"content", OPT_CONTENT, '<',
 151      "Supply or override content for detached signature"},
 152     {"print", OPT_PRINT, '-',
 153      "For the -cmsout operation print out all fields of the CMS structure"},
 154     {"secretkey", OPT_SECRETKEY, 's'},
 155     {"secretkeyid", OPT_SECRETKEYID, 's'},
 156     {"pwri_password", OPT_PWRI_PASSWORD, 's'},
 157     {"econtent_type", OPT_ECONTENT_TYPE, 's'},
 158     {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
 159     {"to", OPT_TO, 's', "To address"},
 160     {"from", OPT_FROM, 's', "From address"},
 161     {"subject", OPT_SUBJECT, 's', "Subject"},
 162     {"signer", OPT_SIGNER, 's', "Signer certificate file"},
 163     {"recip", OPT_RECIP, '<', "Recipient cert file for decryption"},
 164     {"certsout", OPT_CERTSOUT, '>', "Certificate output file"},
 165     {"md", OPT_MD, 's', "Digest algorithm to use when signing or resigning"},
 166     {"inkey", OPT_INKEY, 's',
 167      "Input private key (if not signer or recipient)"},
 168     {"keyform", OPT_KEYFORM, 'f', "Input private key format (PEM or ENGINE)"},
 169     {"keyopt", OPT_KEYOPT, 's', "Set public key parameters as n:v pairs"},
 170     {"receipt_request_from", OPT_RR_FROM, 's'},
 171     {"receipt_request_to", OPT_RR_TO, 's'},
 172     {"", OPT_CIPHER, '-', "Any supported cipher"},
 173     OPT_R_OPTIONS,
 174     OPT_V_OPTIONS,
 175     {"aes128-wrap", OPT_AES128_WRAP, '-', "Use AES128 to wrap key"},
 176     {"aes192-wrap", OPT_AES192_WRAP, '-', "Use AES192 to wrap key"},
 177     {"aes256-wrap", OPT_AES256_WRAP, '-', "Use AES256 to wrap key"},
 178 # ifndef OPENSSL_NO_DES
 179     {"des3-wrap", OPT_3DES_WRAP, '-', "Use 3DES-EDE to wrap key"},
 180 # endif
 181 # ifndef OPENSSL_NO_ENGINE
 182     {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
 183 # endif
 184     {NULL}
 185 };
 186
 187 int cms_main(int argc, char **argv)
 188 {
 189     ASN1_OBJECT *econtent_type = NULL;
 190     BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL;
 191     CMS_ContentInfo *cms = NULL, *rcms = NULL;
 192     CMS_ReceiptRequest *rr = NULL;
 193     ENGINE *e = NULL;
 194     EVP_PKEY *key = NULL;
 195     const EVP_CIPHER *cipher = NULL, *wrap_cipher = NULL;
 196     const EVP_MD *sign_md = NULL;
 197     STACK_OF(OPENSSL_STRING) *rr_to = NULL, *rr_from = NULL;
 198     STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL;
 199     STACK_OF(X509) *encerts = NULL, *other = NULL;
 200     X509 *cert = NULL, *recip = NULL, *signer = NULL;
 201     X509_STORE *store = NULL;
 202     X509_VERIFY_PARAM *vpm = NULL;
 203     char *certfile = NULL, *keyfile = NULL, *contfile = NULL;
 204     const char *CAfile = NULL, *CApath = NULL;
 205     char *certsoutfile = NULL;
 206     int noCAfile = 0, noCApath = 0;
 207     char *infile = NULL, *outfile = NULL, *rctfile = NULL;
 208     char *passinarg = NULL, *passin = NULL, *signerfile = NULL, *recipfile = NULL;
 209     char *to = NULL, *from = NULL, *subject = NULL, *prog;
 210     cms_key_param *key_first = NULL, *key_param = NULL;
 211     int flags = CMS_DETACHED, noout = 0, print = 0, keyidx = -1, vpmtouched = 0;
 212     int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
 213     int operation = 0, ret = 1, rr_print = 0, rr_allorfirst = -1;
 214     int verify_retcode = 0, rctformat = FORMAT_SMIME, keyform = FORMAT_PEM;
 215     size_t secret_keylen = 0, secret_keyidlen = 0;
 216     unsigned char *pwri_pass = NULL, *pwri_tmp = NULL;
 217     unsigned char *secret_key = NULL, *secret_keyid = NULL;
 218     long ltmp;
 219     const char *mime_eol = "\n";
 220     OPTION_CHOICE o;
 221
 222     if ((vpm = X509_VERIFY_PARAM_new()) == NULL)
 223         return 1;
 224
 225     prog = opt_init(argc, argv, cms_options);
 226     while ((o = opt_next()) != OPT_EOF) {
 227         switch (o) {
 228         case OPT_EOF:
 229         case OPT_ERR:
 230  opthelp:
 231             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 232             goto end;
 233         case OPT_HELP:
 234             opt_help(cms_options);
 235             ret = 0;
 236             goto end;
 237         case OPT_INFORM:
 238             if (!opt_format(opt_arg(), OPT_FMT_PDS, &informat))
 239                 goto opthelp;
 240             break;
 241         case OPT_OUTFORM:
 242             if (!opt_format(opt_arg(), OPT_FMT_PDS, &outformat))
 243                 goto opthelp;
 244             break;
 245         case OPT_OUT:
 246             outfile = opt_arg();
 247             break;
 248         case OPT_ENCRYPT:
 249             operation = SMIME_ENCRYPT;
 250             break;
 251         case OPT_DECRYPT:
 252             operation = SMIME_DECRYPT;
 253             break;
 254         case OPT_SIGN:
 255             operation = SMIME_SIGN;
 256             break;
 257         case OPT_SIGN_RECEIPT:
 258             operation = SMIME_SIGN_RECEIPT;
 259             break;
 260         case OPT_RESIGN:
 261             operation = SMIME_RESIGN;
 262             break;
 263         case OPT_VERIFY:
 264             operation = SMIME_VERIFY;
 265             break;
 266         case OPT_VERIFY_RETCODE:
 267             verify_retcode = 1;
 268             break;
 269         case OPT_VERIFY_RECEIPT:
 270             operation = SMIME_VERIFY_RECEIPT;
 271             rctfile = opt_arg();
 272             break;
 273         case OPT_CMSOUT:
 274             operation = SMIME_CMSOUT;
 275             break;
 276         case OPT_DATA_OUT:
 277             operation = SMIME_DATAOUT;
 278             break;
 279         case OPT_DATA_CREATE:
 280             operation = SMIME_DATA_CREATE;
 281             break;
 282         case OPT_DIGEST_VERIFY:
 283             operation = SMIME_DIGEST_VERIFY;
 284             break;
 285         case OPT_DIGEST_CREATE:
 286             operation = SMIME_DIGEST_CREATE;
 287             break;
 288         case OPT_COMPRESS:
 289             operation = SMIME_COMPRESS;
 290             break;
 291         case OPT_UNCOMPRESS:
 292             operation = SMIME_UNCOMPRESS;
 293             break;
 294         case OPT_ED_DECRYPT:
 295             operation = SMIME_ENCRYPTED_DECRYPT;
 296             break;
 297         case OPT_ED_ENCRYPT:
 298             operation = SMIME_ENCRYPTED_ENCRYPT;
 299             break;
 300         case OPT_DEBUG_DECRYPT:
 301             flags |= CMS_DEBUG_DECRYPT;
 302             break;
 303         case OPT_TEXT:
 304             flags |= CMS_TEXT;
 305             break;
 306         case OPT_ASCIICRLF:
 307             flags |= CMS_ASCIICRLF;
 308             break;
 309         case OPT_NOINTERN:
 310             flags |= CMS_NOINTERN;
 311             break;
 312         case OPT_NOVERIFY:
 313             flags |= CMS_NO_SIGNER_CERT_VERIFY;
 314             break;
 315         case OPT_NOCERTS:
 316             flags |= CMS_NOCERTS;
 317             break;
 318         case OPT_NOATTR:
 319             flags |= CMS_NOATTR;
 320             break;
 321         case OPT_NODETACH:
 322             flags &= ~CMS_DETACHED;
 323             break;
 324         case OPT_NOSMIMECAP:
 325             flags |= CMS_NOSMIMECAP;
 326             break;
 327         case OPT_BINARY:
 328             flags |= CMS_BINARY;
 329             break;
 330         case OPT_CADES:
 331             flags |= CMS_CADES;
 332             break;
 333         case OPT_KEYID:
 334             flags |= CMS_USE_KEYID;
 335             break;
 336         case OPT_NOSIGS:
 337             flags |= CMS_NOSIGS;
 338             break;
 339         case OPT_NO_CONTENT_VERIFY:
 340             flags |= CMS_NO_CONTENT_VERIFY;
 341             break;
 342         case OPT_NO_ATTR_VERIFY:
 343             flags |= CMS_NO_ATTR_VERIFY;
 344             break;
 345         case OPT_INDEF:
 346             flags |= CMS_STREAM;
 347             break;
 348         case OPT_NOINDEF:
 349             flags &= ~CMS_STREAM;
 350             break;
 351         case OPT_CRLFEOL:
 352             mime_eol = "\r\n";
 353             flags |= CMS_CRLFEOL;
 354             break;
 355         case OPT_NOOUT:
 356             noout = 1;
 357             break;
 358         case OPT_RR_PRINT:
 359             rr_print = 1;
 360             break;
 361         case OPT_RR_ALL:
 362             rr_allorfirst = 0;
 363             break;
 364         case OPT_RR_FIRST:
 365             rr_allorfirst = 1;
 366             break;
 367         case OPT_RCTFORM:
 368             if (rctformat == FORMAT_SMIME)
 369                 rcms = SMIME_read_CMS(rctin, NULL);
 370             else if (rctformat == FORMAT_PEM)
 371                 rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
 372             else if (rctformat == FORMAT_ASN1)
 373                 if (!opt_format(opt_arg(),
 374                                 OPT_FMT_PEMDER | OPT_FMT_SMIME, &rctformat))
 375                     goto opthelp;
 376             break;
 377         case OPT_CERTFILE:
 378             certfile = opt_arg();
 379             break;
 380         case OPT_CAFILE:
 381             CAfile = opt_arg();
 382             break;
 383         case OPT_CAPATH:
 384             CApath = opt_arg();
 385             break;
 386         case OPT_NOCAFILE:
 387             noCAfile = 1;
 388             break;
 389         case OPT_NOCAPATH:
 390             noCApath = 1;
 391             break;
 392         case OPT_IN:
 393             infile = opt_arg();
 394             break;
 395         case OPT_CONTENT:
 396             contfile = opt_arg();
 397             break;
 398         case OPT_RR_FROM:
 399             if (rr_from == NULL
 400                 && (rr_from = sk_OPENSSL_STRING_new_null()) == NULL)
 401                 goto end;
 402             sk_OPENSSL_STRING_push(rr_from, opt_arg());
 403             break;
 404         case OPT_RR_TO:
 405             if (rr_to == NULL
 406                 && (rr_to = sk_OPENSSL_STRING_new_null()) == NULL)
 407                 goto end;
 408             sk_OPENSSL_STRING_push(rr_to, opt_arg());
 409             break;
 410         case OPT_PRINT:
 411             noout = print = 1;
 412             break;
 413         case OPT_SECRETKEY:
 414             if (secret_key != NULL) {
 415                 BIO_printf(bio_err, "Invalid key (supplied twice) %s\n",
 416                            opt_arg());
 417                 goto opthelp;
 418             }
 419             secret_key = OPENSSL_hexstr2buf(opt_arg(), &ltmp);
 420             if (secret_key == NULL) {
 421                 BIO_printf(bio_err, "Invalid key %s\n", opt_arg());
 422                 goto end;
 423             }
 424             secret_keylen = (size_t)ltmp;
 425             break;
 426         case OPT_SECRETKEYID:
 427             if (secret_keyid != NULL) {
 428                 BIO_printf(bio_err, "Invalid id (supplied twice) %s\n",
 429                            opt_arg());
 430                 goto opthelp;
 431             }
 432             secret_keyid = OPENSSL_hexstr2buf(opt_arg(), &ltmp);
 433             if (secret_keyid == NULL) {
 434                 BIO_printf(bio_err, "Invalid id %s\n", opt_arg());
 435                 goto opthelp;
 436             }
 437             secret_keyidlen = (size_t)ltmp;
 438             break;
 439         case OPT_PWRI_PASSWORD:
 440             pwri_pass = (unsigned char *)opt_arg();
 441             break;
 442         case OPT_ECONTENT_TYPE:
 443             if (econtent_type != NULL) {
 444                 BIO_printf(bio_err, "Invalid OID (supplied twice) %s\n",
 445                            opt_arg());
 446                 goto opthelp;
 447             }
 448             econtent_type = OBJ_txt2obj(opt_arg(), 0);
 449             if (econtent_type == NULL) {
 450                 BIO_printf(bio_err, "Invalid OID %s\n", opt_arg());
 451                 goto opthelp;
 452             }
 453             break;
 454         case OPT_ENGINE:
 455             e = setup_engine(opt_arg(), 0);
 456             break;
 457         case OPT_PASSIN:
 458             passinarg = opt_arg();
 459             break;
 460         case OPT_TO:
 461             to = opt_arg();
 462             break;
 463         case OPT_FROM:
 464             from = opt_arg();
 465             break;
 466         case OPT_SUBJECT:
 467             subject = opt_arg();
 468             break;
 469         case OPT_CERTSOUT:
 470             certsoutfile = opt_arg();
 471             break;
 472         case OPT_MD:
 473             if (!opt_md(opt_arg(), &sign_md))
 474                 goto end;
 475             break;
 476         case OPT_SIGNER:
 477             /* If previous -signer argument add signer to list */
 478             if (signerfile != NULL) {
 479                 if (sksigners == NULL
 480                     && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 481                     goto end;
 482                 sk_OPENSSL_STRING_push(sksigners, signerfile);
 483                 if (keyfile == NULL)
 484                     keyfile = signerfile;
 485                 if (skkeys == NULL
 486                     && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 487                     goto end;
 488                 sk_OPENSSL_STRING_push(skkeys, keyfile);
 489                 keyfile = NULL;
 490             }
 491             signerfile = opt_arg();
 492             break;
 493         case OPT_INKEY:
 494             /* If previous -inkey argument add signer to list */
 495             if (keyfile != NULL) {
 496                 if (signerfile == NULL) {
 497                     BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 498                     goto end;
 499                 }
 500                 if (sksigners == NULL
 501                     && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 502                     goto end;
 503                 sk_OPENSSL_STRING_push(sksigners, signerfile);
 504                 signerfile = NULL;
 505                 if (skkeys == NULL
 506                     && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 507                     goto end;
 508                 sk_OPENSSL_STRING_push(skkeys, keyfile);
 509             }
 510             keyfile = opt_arg();
 511             break;
 512         case OPT_KEYFORM:
 513             if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
 514                 goto opthelp;
 515             break;
 516         case OPT_RECIP:
 517             if (operation == SMIME_ENCRYPT) {
 518                 if (encerts == NULL && (encerts = sk_X509_new_null()) == NULL)
 519                     goto end;
 520                 cert = load_cert(opt_arg(), FORMAT_PEM,
 521                                  "recipient certificate file");
 522                 if (cert == NULL)
 523                     goto end;
 524                 sk_X509_push(encerts, cert);
 525                 cert = NULL;
 526             } else {
 527                 recipfile = opt_arg();
 528             }
 529             break;
 530         case OPT_CIPHER:
 531             if (!opt_cipher(opt_unknown(), &cipher))
 532                 goto end;
 533             break;
 534         case OPT_KEYOPT:
 535             keyidx = -1;
 536             if (operation == SMIME_ENCRYPT) {
 537                 if (encerts != NULL)
 538                     keyidx += sk_X509_num(encerts);
 539             } else {
 540                 if (keyfile != NULL || signerfile != NULL)
 541                     keyidx++;
 542                 if (skkeys != NULL)
 543                     keyidx += sk_OPENSSL_STRING_num(skkeys);
 544             }
 545             if (keyidx < 0) {
 546                 BIO_printf(bio_err, "No key specified\n");
 547                 goto opthelp;
 548             }
 549             if (key_param == NULL || key_param->idx != keyidx) {
 550                 cms_key_param *nparam;
 551                 nparam = app_malloc(sizeof(*nparam), "key param buffer");
 552                 nparam->idx = keyidx;
 553                 if ((nparam->param = sk_OPENSSL_STRING_new_null()) == NULL)
 554                     goto end;
 555                 nparam->next = NULL;
 556                 if (key_first == NULL)
 557                     key_first = nparam;
 558                 else
 559                     key_param->next = nparam;
 560                 key_param = nparam;
 561             }
 562             sk_OPENSSL_STRING_push(key_param->param, opt_arg());
 563             break;
 564         case OPT_V_CASES:
 565             if (!opt_verify(o, vpm))
 566                 goto end;
 567             vpmtouched++;
 568             break;
 569         case OPT_R_CASES:
 570             if (!opt_rand(o))
 571                 goto end;
 572             break;
 573         case OPT_3DES_WRAP:
 574 # ifndef OPENSSL_NO_DES
 575             wrap_cipher = EVP_des_ede3_wrap();
 576 # endif
 577             break;
 578         case OPT_AES128_WRAP:
 579             wrap_cipher = EVP_aes_128_wrap();
 580             break;
 581         case OPT_AES192_WRAP:
 582             wrap_cipher = EVP_aes_192_wrap();
 583             break;
 584         case OPT_AES256_WRAP:
 585             wrap_cipher = EVP_aes_256_wrap();
 586             break;
 587         }
 588     }
 589     argc = opt_num_rest();
 590     argv = opt_rest();
 591
 592     if ((rr_allorfirst != -1 || rr_from != NULL) && rr_to == NULL) {
 593         BIO_puts(bio_err, "No Signed Receipts Recipients\n");
 594         goto opthelp;
 595     }
 596
 597     if (!(operation & SMIME_SIGNERS) && (rr_to != NULL || rr_from != NULL)) {
 598         BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
 599         goto opthelp;
 600     }
 601     if (!(operation & SMIME_SIGNERS) && (skkeys != NULL || sksigners != NULL)) {
 602         BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
 603         goto opthelp;
 604     }
 605
 606     if (operation & SMIME_SIGNERS) {
 607         if (keyfile != NULL && signerfile == NULL) {
 608             BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 609             goto opthelp;
 610         }
 611         /* Check to see if any final signer needs to be appended */
 612         if (signerfile != NULL) {
 613             if (sksigners == NULL
 614                 && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 615                 goto end;
 616             sk_OPENSSL_STRING_push(sksigners, signerfile);
 617             if (skkeys == NULL && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 618                 goto end;
 619             if (keyfile == NULL)
 620                 keyfile = signerfile;
 621             sk_OPENSSL_STRING_push(skkeys, keyfile);
 622         }
 623         if (sksigners == NULL) {
 624             BIO_printf(bio_err, "No signer certificate specified\n");
 625             goto opthelp;
 626         }
 627         signerfile = NULL;
 628         keyfile = NULL;
 629     } else if (operation == SMIME_DECRYPT) {
 630         if (recipfile == NULL && keyfile == NULL
 631             && secret_key == NULL && pwri_pass == NULL) {
 632             BIO_printf(bio_err,
 633                        "No recipient certificate or key specified\n");
 634             goto opthelp;
 635         }
 636     } else if (operation == SMIME_ENCRYPT) {
 637         if (*argv == NULL && secret_key == NULL
 638             && pwri_pass == NULL && encerts == NULL) {
 639             BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
 640             goto opthelp;
 641         }
 642     } else if (!operation) {
 643         goto opthelp;
 644     }
 645
 646     if (!app_passwd(passinarg, NULL, &passin, NULL)) {
 647         BIO_printf(bio_err, "Error getting password\n");
 648         goto end;
 649     }
 650
 651     ret = 2;
 652
 653     if (!(operation & SMIME_SIGNERS))
 654         flags &= ~CMS_DETACHED;
 655
 656     if (!(operation & SMIME_OP))
 657         if (flags & CMS_BINARY)
 658             outformat = FORMAT_BINARY;
 659
 660     if (!(operation & SMIME_IP))
 661         if (flags & CMS_BINARY)
 662             informat = FORMAT_BINARY;
 663
 664     if (operation == SMIME_ENCRYPT) {
 665         if (!cipher) {
 666 # ifndef OPENSSL_NO_DES
 667             cipher = EVP_des_ede3_cbc();
 668 # else
 669             BIO_printf(bio_err, "No cipher selected\n");
 670             goto end;
 671 # endif
 672         }
 673
 674         if (secret_key && !secret_keyid) {
 675             BIO_printf(bio_err, "No secret key id\n");
 676             goto end;
 677         }
 678
 679         if (*argv && encerts == NULL)
 680             if ((encerts = sk_X509_new_null()) == NULL)
 681                 goto end;
 682         while (*argv) {
 683             if ((cert = load_cert(*argv, FORMAT_PEM,
 684                                   "recipient certificate file")) == NULL)
 685                 goto end;
 686             sk_X509_push(encerts, cert);
 687             cert = NULL;
 688             argv++;
 689         }
 690     }
 691
 692     if (certfile != NULL) {
 693         if (!load_certs(certfile, &other, FORMAT_PEM, NULL,
 694                         "certificate file")) {
 695             ERR_print_errors(bio_err);
 696             goto end;
 697         }
 698     }
 699
 700     if (recipfile != NULL && (operation == SMIME_DECRYPT)) {
 701         if ((recip = load_cert(recipfile, FORMAT_PEM,
 702                                "recipient certificate file")) == NULL) {
 703             ERR_print_errors(bio_err);
 704             goto end;
 705         }
 706     }
 707
 708     if (operation == SMIME_SIGN_RECEIPT) {
 709         if ((signer = load_cert(signerfile, FORMAT_PEM,
 710                                 "receipt signer certificate file")) == NULL) {
 711             ERR_print_errors(bio_err);
 712             goto end;
 713         }
 714     }
 715
 716     if (operation == SMIME_DECRYPT) {
 717         if (keyfile == NULL)
 718             keyfile = recipfile;
 719     } else if ((operation == SMIME_SIGN) || (operation == SMIME_SIGN_RECEIPT)) {
 720         if (keyfile == NULL)
 721             keyfile = signerfile;
 722     } else {
 723         keyfile = NULL;
 724     }
 725
 726     if (keyfile != NULL) {
 727         key = load_key(keyfile, keyform, 0, passin, e, "signing key file");
 728         if (key == NULL)
 729             goto end;
 730     }
 731
 732     in = bio_open_default(infile, 'r', informat);
 733     if (in == NULL)
 734         goto end;
 735
 736     if (operation & SMIME_IP) {
 737         if (informat == FORMAT_SMIME) {
 738             cms = SMIME_read_CMS(in, &indata);
 739         } else if (informat == FORMAT_PEM) {
 740             cms = PEM_read_bio_CMS(in, NULL, NULL, NULL);
 741         } else if (informat == FORMAT_ASN1) {
 742             cms = d2i_CMS_bio(in, NULL);
 743         } else {
 744             BIO_printf(bio_err, "Bad input format for CMS file\n");
 745             goto end;
 746         }
 747
 748         if (cms == NULL) {
 749             BIO_printf(bio_err, "Error reading S/MIME message\n");
 750             goto end;
 751         }
 752         if (contfile != NULL) {
 753             BIO_free(indata);
 754             if ((indata = BIO_new_file(contfile, "rb")) == NULL) {
 755                 BIO_printf(bio_err, "Can't read content file %s\n", contfile);
 756                 goto end;
 757             }
 758         }
 759         if (certsoutfile != NULL) {
 760             STACK_OF(X509) *allcerts;
 761             allcerts = CMS_get1_certs(cms);
 762             if (!save_certs(certsoutfile, allcerts)) {
 763                 BIO_printf(bio_err,
 764                            "Error writing certs to %s\n", certsoutfile);
 765                 ret = 5;
 766                 goto end;
 767             }
 768             sk_X509_pop_free(allcerts, X509_free);
 769         }
 770     }
 771
 772     if (rctfile != NULL) {
 773         char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r";
 774         if ((rctin = BIO_new_file(rctfile, rctmode)) == NULL) {
 775             BIO_printf(bio_err, "Can't open receipt file %s\n", rctfile);
 776             goto end;
 777         }
 778
 779         if (rctformat == FORMAT_SMIME) {
 780             rcms = SMIME_read_CMS(rctin, NULL);
 781         } else if (rctformat == FORMAT_PEM) {
 782             rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
 783         } else if (rctformat == FORMAT_ASN1) {
 784             rcms = d2i_CMS_bio(rctin, NULL);
 785         } else {
 786             BIO_printf(bio_err, "Bad input format for receipt\n");
 787             goto end;
 788         }
 789
 790         if (rcms == NULL) {
 791             BIO_printf(bio_err, "Error reading receipt\n");
 792             goto end;
 793         }
 794     }
 795
 796     out = bio_open_default(outfile, 'w', outformat);
 797     if (out == NULL)
 798         goto end;
 799
 800     if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT)) {
 801         if ((store = setup_verify(CAfile, CApath, noCAfile, noCApath)) == NULL)
 802             goto end;
 803         X509_STORE_set_verify_cb(store, cms_cb);
 804         if (vpmtouched)
 805             X509_STORE_set1_param(store, vpm);
 806     }
 807
 808     ret = 3;
 809
 810     if (operation == SMIME_DATA_CREATE) {
 811         cms = CMS_data_create(in, flags);
 812     } else if (operation == SMIME_DIGEST_CREATE) {
 813         cms = CMS_digest_create(in, sign_md, flags);
 814     } else if (operation == SMIME_COMPRESS) {
 815         cms = CMS_compress(in, -1, flags);
 816     } else if (operation == SMIME_ENCRYPT) {
 817         int i;
 818         flags |= CMS_PARTIAL;
 819         cms = CMS_encrypt(NULL, in, cipher, flags);
 820         if (cms == NULL)
 821             goto end;
 822         for (i = 0; i < sk_X509_num(encerts); i++) {
 823             CMS_RecipientInfo *ri;
 824             cms_key_param *kparam;
 825             int tflags = flags;
 826             X509 *x = sk_X509_value(encerts, i);
 827             for (kparam = key_first; kparam; kparam = kparam->next) {
 828                 if (kparam->idx == i) {
 829                     tflags |= CMS_KEY_PARAM;
 830                     break;
 831                 }
 832             }
 833             ri = CMS_add1_recipient_cert(cms, x, tflags);
 834             if (ri == NULL)
 835                 goto end;
 836             if (kparam != NULL) {
 837                 EVP_PKEY_CTX *pctx;
 838                 pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
 839                 if (!cms_set_pkey_param(pctx, kparam->param))
 840                     goto end;
 841             }
 842             if (CMS_RecipientInfo_type(ri) == CMS_RECIPINFO_AGREE
 843                 && wrap_cipher) {
 844                 EVP_CIPHER_CTX *wctx;
 845                 wctx = CMS_RecipientInfo_kari_get0_ctx(ri);
 846                 EVP_EncryptInit_ex(wctx, wrap_cipher, NULL, NULL, NULL);
 847             }
 848         }
 849
 850         if (secret_key != NULL) {
 851             if (!CMS_add0_recipient_key(cms, NID_undef,
 852                                         secret_key, secret_keylen,
 853                                         secret_keyid, secret_keyidlen,
 854                                         NULL, NULL, NULL))
 855                 goto end;
 856             /* NULL these because call absorbs them */
 857             secret_key = NULL;
 858             secret_keyid = NULL;
 859         }
 860         if (pwri_pass != NULL) {
 861             pwri_tmp = (unsigned char *)OPENSSL_strdup((char *)pwri_pass);
 862             if (pwri_tmp == NULL)
 863                 goto end;
 864             if (CMS_add0_recipient_password(cms,
 865                                             -1, NID_undef, NID_undef,
 866                                             pwri_tmp, -1, NULL) == NULL)
 867                 goto end;
 868             pwri_tmp = NULL;
 869         }
 870         if (!(flags & CMS_STREAM)) {
 871             if (!CMS_final(cms, in, NULL, flags))
 872                 goto end;
 873         }
 874     } else if (operation == SMIME_ENCRYPTED_ENCRYPT) {
 875         cms = CMS_EncryptedData_encrypt(in, cipher,
 876                                         secret_key, secret_keylen, flags);
 877
 878     } else if (operation == SMIME_SIGN_RECEIPT) {
 879         CMS_ContentInfo *srcms = NULL;
 880         STACK_OF(CMS_SignerInfo) *sis;
 881         CMS_SignerInfo *si;
 882         sis = CMS_get0_SignerInfos(cms);
 883         if (sis == NULL)
 884             goto end;
 885         si = sk_CMS_SignerInfo_value(sis, 0);
 886         srcms = CMS_sign_receipt(si, signer, key, other, flags);
 887         if (srcms == NULL)
 888             goto end;
 889         CMS_ContentInfo_free(cms);
 890         cms = srcms;
 891     } else if (operation & SMIME_SIGNERS) {
 892         int i;
 893         /*
 894          * If detached data content we enable streaming if S/MIME output
 895          * format.
 896          */
 897         if (operation == SMIME_SIGN) {
 898
 899             if (flags & CMS_DETACHED) {
 900                 if (outformat == FORMAT_SMIME)
 901                     flags |= CMS_STREAM;
 902             }
 903             flags |= CMS_PARTIAL;
 904             cms = CMS_sign(NULL, NULL, other, in, flags);
 905             if (cms == NULL)
 906                 goto end;
 907             if (econtent_type != NULL)
 908                 CMS_set1_eContentType(cms, econtent_type);
 909
 910             if (rr_to != NULL) {
 911                 rr = make_receipt_request(rr_to, rr_allorfirst, rr_from);
 912                 if (rr == NULL) {
 913                     BIO_puts(bio_err,
 914                              "Signed Receipt Request Creation Error\n");
 915                     goto end;
 916                 }
 917             }
 918         } else {
 919             flags |= CMS_REUSE_DIGEST;
 920         }
 921         for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
 922             CMS_SignerInfo *si;
 923             cms_key_param *kparam;
 924             int tflags = flags;
 925             signerfile = sk_OPENSSL_STRING_value(sksigners, i);
 926             keyfile = sk_OPENSSL_STRING_value(skkeys, i);
 927
 928             signer = load_cert(signerfile, FORMAT_PEM, "signer certificate");
 929             if (signer == NULL) {
 930                 ret = 2;
 931                 goto end;
 932             }
 933             key = load_key(keyfile, keyform, 0, passin, e, "signing key file");
 934             if (key == NULL) {
 935                 ret = 2;
 936                 goto end;
 937             }
 938             for (kparam = key_first; kparam; kparam = kparam->next) {
 939                 if (kparam->idx == i) {
 940                     tflags |= CMS_KEY_PARAM;
 941                     break;
 942                 }
 943             }
 944             si = CMS_add1_signer(cms, signer, key, sign_md, tflags);
 945             if (si == NULL)
 946                 goto end;
 947             if (kparam != NULL) {
 948                 EVP_PKEY_CTX *pctx;
 949                 pctx = CMS_SignerInfo_get0_pkey_ctx(si);
 950                 if (!cms_set_pkey_param(pctx, kparam->param))
 951                     goto end;
 952             }
 953             if (rr != NULL && !CMS_add1_ReceiptRequest(si, rr))
 954                 goto end;
 955             X509_free(signer);
 956             signer = NULL;
 957             EVP_PKEY_free(key);
 958             key = NULL;
 959         }
 960         /* If not streaming or resigning finalize structure */
 961         if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) {
 962             if (!CMS_final(cms, in, NULL, flags))
 963                 goto end;
 964         }
 965     }
 966
 967     if (cms == NULL) {
 968         BIO_printf(bio_err, "Error creating CMS structure\n");
 969         goto end;
 970     }
 971
 972     ret = 4;
 973     if (operation == SMIME_DECRYPT) {
 974         if (flags & CMS_DEBUG_DECRYPT)
 975             CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
 976
 977         if (secret_key != NULL) {
 978             if (!CMS_decrypt_set1_key(cms,
 979                                       secret_key, secret_keylen,
 980                                       secret_keyid, secret_keyidlen)) {
 981                 BIO_puts(bio_err, "Error decrypting CMS using secret key\n");
 982                 goto end;
 983             }
 984         }
 985
 986         if (key != NULL) {
 987             if (!CMS_decrypt_set1_pkey(cms, key, recip)) {
 988                 BIO_puts(bio_err, "Error decrypting CMS using private key\n");
 989                 goto end;
 990             }
 991         }
 992
 993         if (pwri_pass != NULL) {
 994             if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) {
 995                 BIO_puts(bio_err, "Error decrypting CMS using password\n");
 996                 goto end;
 997             }
 998         }
 999
1000         if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) {
1001             BIO_printf(bio_err, "Error decrypting CMS structure\n");
1002             goto end;
1003         }
1004     } else if (operation == SMIME_DATAOUT) {
1005         if (!CMS_data(cms, out, flags))
1006             goto end;
1007     } else if (operation == SMIME_UNCOMPRESS) {
1008         if (!CMS_uncompress(cms, indata, out, flags))
1009             goto end;
1010     } else if (operation == SMIME_DIGEST_VERIFY) {
1011         if (CMS_digest_verify(cms, indata, out, flags) > 0) {
1012             BIO_printf(bio_err, "Verification successful\n");
1013         } else {
1014             BIO_printf(bio_err, "Verification failure\n");
1015             goto end;
1016         }
1017     } else if (operation == SMIME_ENCRYPTED_DECRYPT) {
1018         if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
1019                                        indata, out, flags))
1020             goto end;
1021     } else if (operation == SMIME_VERIFY) {
1022         if (CMS_verify(cms, other, store, indata, out, flags) > 0) {
1023             BIO_printf(bio_err, "Verification successful\n");
1024         } else {
1025             BIO_printf(bio_err, "Verification failure\n");
1026             if (verify_retcode)
1027                 ret = verify_err + 32;
1028             goto end;
1029         }
1030         if (signerfile != NULL) {
1031             STACK_OF(X509) *signers;
1032             signers = CMS_get0_signers(cms);
1033             if (!save_certs(signerfile, signers)) {
1034                 BIO_printf(bio_err,
1035                            "Error writing signers to %s\n", signerfile);
1036                 ret = 5;
1037                 goto end;
1038             }
1039             sk_X509_free(signers);
1040         }
1041         if (rr_print)
1042             receipt_request_print(cms);
1043
1044     } else if (operation == SMIME_VERIFY_RECEIPT) {
1045         if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0) {
1046             BIO_printf(bio_err, "Verification successful\n");
1047         } else {
1048             BIO_printf(bio_err, "Verification failure\n");
1049             goto end;
1050         }
1051     } else {
1052         if (noout) {
1053             if (print)
1054                 CMS_ContentInfo_print_ctx(out, cms, 0, NULL);
1055         } else if (outformat == FORMAT_SMIME) {
1056             if (to)
1057                 BIO_printf(out, "To: %s%s", to, mime_eol);
1058             if (from)
1059                 BIO_printf(out, "From: %s%s", from, mime_eol);
1060             if (subject)
1061                 BIO_printf(out, "Subject: %s%s", subject, mime_eol);
1062             if (operation == SMIME_RESIGN)
1063                 ret = SMIME_write_CMS(out, cms, indata, flags);
1064             else
1065                 ret = SMIME_write_CMS(out, cms, in, flags);
1066         } else if (outformat == FORMAT_PEM) {
1067             ret = PEM_write_bio_CMS_stream(out, cms, in, flags);
1068         } else if (outformat == FORMAT_ASN1) {
1069             ret = i2d_CMS_bio_stream(out, cms, in, flags);
1070         } else {
1071             BIO_printf(bio_err, "Bad output format for CMS file\n");
1072             goto end;
1073         }
1074         if (ret <= 0) {
1075             ret = 6;
1076             goto end;
1077         }
1078     }
1079     ret = 0;
1080  end:
1081     if (ret)
1082         ERR_print_errors(bio_err);
1083     sk_X509_pop_free(encerts, X509_free);
1084     sk_X509_pop_free(other, X509_free);
1085     X509_VERIFY_PARAM_free(vpm);
1086     sk_OPENSSL_STRING_free(sksigners);
1087     sk_OPENSSL_STRING_free(skkeys);
1088     OPENSSL_free(secret_key);
1089     OPENSSL_free(secret_keyid);
1090     OPENSSL_free(pwri_tmp);
1091     ASN1_OBJECT_free(econtent_type);
1092     CMS_ReceiptRequest_free(rr);
1093     sk_OPENSSL_STRING_free(rr_to);
1094     sk_OPENSSL_STRING_free(rr_from);
1095     for (key_param = key_first; key_param;) {
1096         cms_key_param *tparam;
1097         sk_OPENSSL_STRING_free(key_param->param);
1098         tparam = key_param->next;
1099         OPENSSL_free(key_param);
1100         key_param = tparam;
1101     }
1102     X509_STORE_free(store);
1103     X509_free(cert);
1104     X509_free(recip);
1105     X509_free(signer);
1106     EVP_PKEY_free(key);
1107     CMS_ContentInfo_free(cms);
1108     CMS_ContentInfo_free(rcms);
1109     release_engine(e);
1110     BIO_free(rctin);
1111     BIO_free(in);
1112     BIO_free(indata);
1113     BIO_free_all(out);
1114     OPENSSL_free(passin);
1115     return ret;
1116 }
1117
1118 static int save_certs(char *signerfile, STACK_OF(X509) *signers)
1119 {
1120     int i;
1121     BIO *tmp;
1122     if (signerfile == NULL)
1123         return 1;
1124     tmp = BIO_new_file(signerfile, "w");
1125     if (tmp == NULL)
1126         return 0;
1127     for (i = 0; i < sk_X509_num(signers); i++)
1128         PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
1129     BIO_free(tmp);
1130     return 1;
1131 }
1132
1133 /* Minimal callback just to output policy info (if any) */
1134
1135 static int cms_cb(int ok, X509_STORE_CTX *ctx)
1136 {
1137     int error;
1138
1139     error = X509_STORE_CTX_get_error(ctx);
1140
1141     verify_err = error;
1142
1143     if ((error != X509_V_ERR_NO_EXPLICIT_POLICY)
1144         && ((error != X509_V_OK) || (ok != 2)))
1145         return ok;
1146
1147     policies_print(ctx);
1148
1149     return ok;
1150
1151 }
1152
1153 static void gnames_stack_print(STACK_OF(GENERAL_NAMES) *gns)
1154 {
1155     STACK_OF(GENERAL_NAME) *gens;
1156     GENERAL_NAME *gen;
1157     int i, j;
1158
1159     for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) {
1160         gens = sk_GENERAL_NAMES_value(gns, i);
1161         for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) {
1162             gen = sk_GENERAL_NAME_value(gens, j);
1163             BIO_puts(bio_err, "    ");
1164             GENERAL_NAME_print(bio_err, gen);
1165             BIO_puts(bio_err, "\n");
1166         }
1167     }
1168     return;
1169 }
1170
1171 static void receipt_request_print(CMS_ContentInfo *cms)
1172 {
1173     STACK_OF(CMS_SignerInfo) *sis;
1174     CMS_SignerInfo *si;
1175     CMS_ReceiptRequest *rr;
1176     int allorfirst;
1177     STACK_OF(GENERAL_NAMES) *rto, *rlist;
1178     ASN1_STRING *scid;
1179     int i, rv;
1180     sis = CMS_get0_SignerInfos(cms);
1181     for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) {
1182         si = sk_CMS_SignerInfo_value(sis, i);
1183         rv = CMS_get1_ReceiptRequest(si, &rr);
1184         BIO_printf(bio_err, "Signer %d:\n", i + 1);
1185         if (rv == 0) {
1186             BIO_puts(bio_err, "  No Receipt Request\n");
1187         } else if (rv < 0) {
1188             BIO_puts(bio_err, "  Receipt Request Parse Error\n");
1189             ERR_print_errors(bio_err);
1190         } else {
1191             const char *id;
1192             int idlen;
1193             CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
1194                                            &rlist, &rto);
1195             BIO_puts(bio_err, "  Signed Content ID:\n");
1196             idlen = ASN1_STRING_length(scid);
1197             id = (const char *)ASN1_STRING_get0_data(scid);
1198             BIO_dump_indent(bio_err, id, idlen, 4);
1199             BIO_puts(bio_err, "  Receipts From");
1200             if (rlist != NULL) {
1201                 BIO_puts(bio_err, " List:\n");
1202                 gnames_stack_print(rlist);
1203             } else if (allorfirst == 1) {
1204                 BIO_puts(bio_err, ": First Tier\n");
1205             } else if (allorfirst == 0) {
1206                 BIO_puts(bio_err, ": All\n");
1207             } else {
1208                 BIO_printf(bio_err, " Unknown (%d)\n", allorfirst);
1209             }
1210             BIO_puts(bio_err, "  Receipts To:\n");
1211             gnames_stack_print(rto);
1212         }
1213         CMS_ReceiptRequest_free(rr);
1214     }
1215 }
1216
1217 static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK_OF(OPENSSL_STRING) *ns)
1218 {
1219     int i;
1220     STACK_OF(GENERAL_NAMES) *ret;
1221     GENERAL_NAMES *gens = NULL;
1222     GENERAL_NAME *gen = NULL;
1223     ret = sk_GENERAL_NAMES_new_null();
1224     if (ret == NULL)
1225         goto err;
1226     for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++) {
1227         char *str = sk_OPENSSL_STRING_value(ns, i);
1228         gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0);
1229         if (gen == NULL)
1230             goto err;
1231         gens = GENERAL_NAMES_new();
1232         if (gens == NULL)
1233             goto err;
1234         if (!sk_GENERAL_NAME_push(gens, gen))
1235             goto err;
1236         gen = NULL;
1237         if (!sk_GENERAL_NAMES_push(ret, gens))
1238             goto err;
1239         gens = NULL;
1240     }
1241
1242     return ret;
1243
1244  err:
1245     sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
1246     GENERAL_NAMES_free(gens);
1247     GENERAL_NAME_free(gen);
1248     return NULL;
1249 }
1250
1251 static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING)
1252                                                 *rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING)
1253                                                 *rr_from)
1254 {
1255     STACK_OF(GENERAL_NAMES) *rct_to = NULL, *rct_from = NULL;
1256     CMS_ReceiptRequest *rr;
1257     rct_to = make_names_stack(rr_to);
1258     if (rct_to == NULL)
1259         goto err;
1260     if (rr_from != NULL) {
1261         rct_from = make_names_stack(rr_from);
1262         if (rct_from == NULL)
1263             goto err;
1264     } else {
1265         rct_from = NULL;
1266     }
1267     rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from,
1268                                     rct_to);
1269     return rr;
1270  err:
1271     sk_GENERAL_NAMES_pop_free(rct_to, GENERAL_NAMES_free);
1272     return NULL;
1273 }
1274
1275 static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
1276                               STACK_OF(OPENSSL_STRING) *param)
1277 {
1278     char *keyopt;
1279     int i;
1280     if (sk_OPENSSL_STRING_num(param) <= 0)
1281         return 1;
1282     for (i = 0; i < sk_OPENSSL_STRING_num(param); i++) {
1283         keyopt = sk_OPENSSL_STRING_value(param, i);
1284         if (pkey_ctrl_string(pctx, keyopt) <= 0) {
1285             BIO_printf(bio_err, "parameter error \"%s\"\n", keyopt);
1286             ERR_print_errors(bio_err);
1287             return 0;
1288         }
1289     }
1290     return 1;
1291 }
1292
1293 #endif