apps/cms.c

   1 /*
   2  * Copyright 2008-2017 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (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
  16 #ifndef OPENSSL_NO_CMS
  17
  18 # include <openssl/crypto.h>
  19 # include <openssl/pem.h>
  20 # include <openssl/err.h>
  21 # include <openssl/x509_vfy.h>
  22 # include <openssl/x509v3.h>
  23 # include <openssl/cms.h>
  24
  25 static int save_certs(char *signerfile, STACK_OF(X509) *signers);
  26 static int cms_cb(int ok, X509_STORE_CTX *ctx);
  27 static void receipt_request_print(CMS_ContentInfo *cms);
  28 static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING)
  29                                                 *rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING)
  30                                                 *rr_from);
  31 static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
  32                               STACK_OF(OPENSSL_STRING) *param);
  33
  34 # define SMIME_OP        0x10
  35 # define SMIME_IP        0x20
  36 # define SMIME_SIGNERS   0x40
  37 # define SMIME_ENCRYPT           (1 | SMIME_OP)
  38 # define SMIME_DECRYPT           (2 | SMIME_IP)
  39 # define SMIME_SIGN              (3 | SMIME_OP | SMIME_SIGNERS)
  40 # define SMIME_VERIFY            (4 | SMIME_IP)
  41 # define SMIME_CMSOUT            (5 | SMIME_IP | SMIME_OP)
  42 # define SMIME_RESIGN            (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS)
  43 # define SMIME_DATAOUT           (7 | SMIME_IP)
  44 # define SMIME_DATA_CREATE       (8 | SMIME_OP)
  45 # define SMIME_DIGEST_VERIFY     (9 | SMIME_IP)
  46 # define SMIME_DIGEST_CREATE     (10 | SMIME_OP)
  47 # define SMIME_UNCOMPRESS        (11 | SMIME_IP)
  48 # define SMIME_COMPRESS          (12 | SMIME_OP)
  49 # define SMIME_ENCRYPTED_DECRYPT (13 | SMIME_IP)
  50 # define SMIME_ENCRYPTED_ENCRYPT (14 | SMIME_OP)
  51 # define SMIME_SIGN_RECEIPT      (15 | SMIME_IP | SMIME_OP)
  52 # define SMIME_VERIFY_RECEIPT    (16 | SMIME_IP)
  53
  54 static int verify_err = 0;
  55
  56 typedef struct cms_key_param_st cms_key_param;
  57
  58 struct cms_key_param_st {
  59     int idx;
  60     STACK_OF(OPENSSL_STRING) *param;
  61     cms_key_param *next;
  62 };
  63
  64 typedef enum OPTION_choice {
  65     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
  66     OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_ENCRYPT,
  67     OPT_DECRYPT, OPT_SIGN, OPT_SIGN_RECEIPT, OPT_RESIGN,
  68     OPT_VERIFY, OPT_VERIFY_RETCODE, OPT_VERIFY_RECEIPT,
  69     OPT_CMSOUT, OPT_DATA_OUT, OPT_DATA_CREATE, OPT_DIGEST_VERIFY,
  70     OPT_DIGEST_CREATE, OPT_COMPRESS, OPT_UNCOMPRESS,
  71     OPT_ED_DECRYPT, OPT_ED_ENCRYPT, OPT_DEBUG_DECRYPT, OPT_TEXT,
  72     OPT_ASCIICRLF, OPT_NOINTERN, OPT_NOVERIFY, OPT_NOCERTS,
  73     OPT_NOATTR, OPT_NODETACH, OPT_NOSMIMECAP, OPT_BINARY, OPT_KEYID,
  74     OPT_NOSIGS, OPT_NO_CONTENT_VERIFY, OPT_NO_ATTR_VERIFY, OPT_INDEF,
  75     OPT_NOINDEF, OPT_CRLFEOL, OPT_NOOUT, OPT_RR_PRINT,
  76     OPT_RR_ALL, OPT_RR_FIRST, OPT_RCTFORM, OPT_CERTFILE, OPT_CAFILE,
  77     OPT_CAPATH, OPT_NOCAPATH, OPT_NOCAFILE,OPT_CONTENT, OPT_PRINT,
  78     OPT_SECRETKEY, OPT_SECRETKEYID, OPT_PWRI_PASSWORD, OPT_ECONTENT_TYPE,
  79     OPT_RAND, OPT_PASSIN, OPT_TO, OPT_FROM, OPT_SUBJECT, OPT_SIGNER, OPT_RECIP,
  80     OPT_CERTSOUT, OPT_MD, OPT_INKEY, OPT_KEYFORM, OPT_KEYOPT, OPT_RR_FROM,
  81     OPT_RR_TO, OPT_AES128_WRAP, OPT_AES192_WRAP, OPT_AES256_WRAP,
  82     OPT_3DES_WRAP, OPT_ENGINE,
  83     OPT_V_ENUM,
  84     OPT_CIPHER
  85 } OPTION_CHOICE;
  86
  87 const OPTIONS cms_options[] = {
  88     {OPT_HELP_STR, 1, '-', "Usage: %s [options] cert.pem...\n"},
  89     {OPT_HELP_STR, 1, '-',
  90         "  cert.pem... recipient certs for encryption\n"},
  91     {OPT_HELP_STR, 1, '-', "Valid options are:\n"},
  92     {"help", OPT_HELP, '-', "Display this summary"},
  93     {"inform", OPT_INFORM, 'c', "Input format SMIME (default), PEM or DER"},
  94     {"outform", OPT_OUTFORM, 'c',
  95      "Output format SMIME (default), PEM or DER"},
  96     {"in", OPT_IN, '<', "Input file"},
  97     {"out", OPT_OUT, '>', "Output file"},
  98     {"encrypt", OPT_ENCRYPT, '-', "Encrypt message"},
  99     {"decrypt", OPT_DECRYPT, '-', "Decrypt encrypted message"},
 100     {"sign", OPT_SIGN, '-', "Sign message"},
 101     {"sign_receipt", OPT_SIGN_RECEIPT, '-', "Generate a signed receipt for the message"},
 102     {"resign", OPT_RESIGN, '-', "Resign a signed message"},
 103     {"verify", OPT_VERIFY, '-', "Verify signed message"},
 104     {"verify_retcode", OPT_VERIFY_RETCODE, '-'},
 105     {"verify_receipt", OPT_VERIFY_RECEIPT, '<'},
 106     {"cmsout", OPT_CMSOUT, '-', "Output CMS structure"},
 107     {"data_out", OPT_DATA_OUT, '-'},
 108     {"data_create", OPT_DATA_CREATE, '-'},
 109     {"digest_verify", OPT_DIGEST_VERIFY, '-'},
 110     {"digest_create", OPT_DIGEST_CREATE, '-'},
 111     {"compress", OPT_COMPRESS, '-'},
 112     {"uncompress", OPT_UNCOMPRESS, '-'},
 113     {"EncryptedData_decrypt", OPT_ED_DECRYPT, '-'},
 114     {"EncryptedData_encrypt", OPT_ED_ENCRYPT, '-'},
 115     {"debug_decrypt", OPT_DEBUG_DECRYPT, '-'},
 116     {"text", OPT_TEXT, '-', "Include or delete text MIME headers"},
 117     {"asciicrlf", OPT_ASCIICRLF, '-'},
 118     {"nointern", OPT_NOINTERN, '-',
 119      "Don't search certificates in message for signer"},
 120     {"noverify", OPT_NOVERIFY, '-', "Don't verify signers certificate"},
 121     {"nocerts", OPT_NOCERTS, '-',
 122      "Don't include signers certificate when signing"},
 123     {"noattr", OPT_NOATTR, '-', "Don't include any signed attributes"},
 124     {"nodetach", OPT_NODETACH, '-', "Use opaque signing"},
 125     {"nosmimecap", OPT_NOSMIMECAP, '-', "Omit the SMIMECapabilities attribute"},
 126     {"binary", OPT_BINARY, '-', "Don't translate message to text"},
 127     {"keyid", OPT_KEYID, '-', "Use subject key identifier"},
 128     {"nosigs", OPT_NOSIGS, '-', "Don't verify message signature"},
 129     {"no_content_verify", OPT_NO_CONTENT_VERIFY, '-'},
 130     {"no_attr_verify", OPT_NO_ATTR_VERIFY, '-'},
 131     {"stream", OPT_INDEF, '-', "Enable CMS streaming"},
 132     {"indef", OPT_INDEF, '-', "Same as -stream"},
 133     {"noindef", OPT_NOINDEF, '-', "Disable CMS streaming"},
 134     {"crlfeol", OPT_CRLFEOL, '-', "Use CRLF as EOL termination instead of CR only" },
 135     {"noout", OPT_NOOUT, '-', "For the -cmsout operation do not output the parsed CMS structure"},
 136     {"receipt_request_print", OPT_RR_PRINT, '-', "Print CMS Receipt Request" },
 137     {"receipt_request_all", OPT_RR_ALL, '-'},
 138     {"receipt_request_first", OPT_RR_FIRST, '-'},
 139     {"rctform", OPT_RCTFORM, 'F', "Receipt file format"},
 140     {"certfile", OPT_CERTFILE, '<', "Other certificates file"},
 141     {"CAfile", OPT_CAFILE, '<', "Trusted certificates file"},
 142     {"CApath", OPT_CAPATH, '/', "trusted certificates directory"},
 143     {"no-CAfile", OPT_NOCAFILE, '-',
 144      "Do not load the default certificates file"},
 145     {"no-CApath", OPT_NOCAPATH, '-',
 146      "Do not load certificates from the default certificates directory"},
 147     {"content", OPT_CONTENT, '<',
 148      "Supply or override content for detached signature"},
 149     {"print", OPT_PRINT, '-',
 150      "For the -cmsout operation print out all fields of the CMS structure"},
 151     {"secretkey", OPT_SECRETKEY, 's'},
 152     {"secretkeyid", OPT_SECRETKEYID, 's'},
 153     {"pwri_password", OPT_PWRI_PASSWORD, 's'},
 154     {"econtent_type", OPT_ECONTENT_TYPE, 's'},
 155     {"rand", OPT_RAND, 's',
 156      "Load the file(s) into the random number generator"},
 157     {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
 158     {"to", OPT_TO, 's', "To address"},
 159     {"from", OPT_FROM, 's', "From address"},
 160     {"subject", OPT_SUBJECT, 's', "Subject"},
 161     {"signer", OPT_SIGNER, 's', "Signer certificate file"},
 162     {"recip", OPT_RECIP, '<', "Recipient cert file for decryption"},
 163     {"certsout", OPT_CERTSOUT, '>', "Certificate output file"},
 164     {"md", OPT_MD, 's', "Digest algorithm to use when signing or resigning"},
 165     {"inkey", OPT_INKEY, 's',
 166      "Input private key (if not signer or recipient)"},
 167     {"keyform", OPT_KEYFORM, 'f', "Input private key format (PEM or ENGINE)"},
 168     {"keyopt", OPT_KEYOPT, 's', "Set public key parameters as n:v pairs"},
 169     {"receipt_request_from", OPT_RR_FROM, 's'},
 170     {"receipt_request_to", OPT_RR_TO, 's'},
 171     {"", OPT_CIPHER, '-', "Any supported cipher"},
 172     OPT_V_OPTIONS,
 173     {"aes128-wrap", OPT_AES128_WRAP, '-', "Use AES128 to wrap key"},
 174     {"aes192-wrap", OPT_AES192_WRAP, '-', "Use AES192 to wrap key"},
 175     {"aes256-wrap", OPT_AES256_WRAP, '-', "Use AES256 to wrap key"},
 176 # ifndef OPENSSL_NO_DES
 177     {"des3-wrap", OPT_3DES_WRAP, '-', "Use 3DES-EDE to wrap key"},
 178 # endif
 179 # ifndef OPENSSL_NO_ENGINE
 180     {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
 181 # endif
 182     {NULL}
 183 };
 184
 185 int cms_main(int argc, char **argv)
 186 {
 187     ASN1_OBJECT *econtent_type = NULL;
 188     BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL;
 189     CMS_ContentInfo *cms = NULL, *rcms = NULL;
 190     CMS_ReceiptRequest *rr = NULL;
 191     ENGINE *e = NULL;
 192     EVP_PKEY *key = NULL;
 193     const EVP_CIPHER *cipher = NULL, *wrap_cipher = NULL;
 194     const EVP_MD *sign_md = NULL;
 195     STACK_OF(OPENSSL_STRING) *rr_to = NULL, *rr_from = NULL;
 196     STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL;
 197     STACK_OF(X509) *encerts = NULL, *other = NULL;
 198     X509 *cert = NULL, *recip = NULL, *signer = NULL;
 199     X509_STORE *store = NULL;
 200     X509_VERIFY_PARAM *vpm = NULL;
 201     char *certfile = NULL, *keyfile = NULL, *contfile = NULL;
 202     const char *CAfile = NULL, *CApath = NULL;
 203     char *certsoutfile = NULL;
 204     int noCAfile = 0, noCApath = 0;
 205     char *infile = NULL, *outfile = NULL, *rctfile = NULL, *inrand = NULL;
 206     char *passinarg = NULL, *passin = NULL, *signerfile = NULL, *recipfile =
 207         NULL;
 208     char *to = NULL, *from = NULL, *subject = NULL, *prog;
 209     cms_key_param *key_first = NULL, *key_param = NULL;
 210     int flags = CMS_DETACHED, noout = 0, print = 0, keyidx = -1, vpmtouched =
 211         0;
 212     int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
 213     int need_rand = 0, operation = 0, ret = 1, rr_print = 0, rr_allorfirst =
 214         -1;
 215     int verify_retcode = 0, rctformat = FORMAT_SMIME, keyform = FORMAT_PEM;
 216     size_t secret_keylen = 0, secret_keyidlen = 0;
 217     unsigned char *pwri_pass = NULL, *pwri_tmp = NULL;
 218     unsigned char *secret_key = NULL, *secret_keyid = NULL;
 219     long ltmp;
 220     const char *mime_eol = "\n";
 221     OPTION_CHOICE o;
 222
 223     if ((vpm = X509_VERIFY_PARAM_new()) == NULL)
 224         return 1;
 225
 226     prog = opt_init(argc, argv, cms_options);
 227     while ((o = opt_next()) != OPT_EOF) {
 228         switch (o) {
 229         case OPT_EOF:
 230         case OPT_ERR:
 231  opthelp:
 232             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 233             goto end;
 234         case OPT_HELP:
 235             opt_help(cms_options);
 236             ret = 0;
 237             goto end;
 238         case OPT_INFORM:
 239             if (!opt_format(opt_arg(), OPT_FMT_PDS, &informat))
 240                 goto opthelp;
 241             break;
 242         case OPT_OUTFORM:
 243             if (!opt_format(opt_arg(), OPT_FMT_PDS, &outformat))
 244                 goto opthelp;
 245             break;
 246         case OPT_OUT:
 247             outfile = opt_arg();
 248             break;
 249         case OPT_ENCRYPT:
 250             operation = SMIME_ENCRYPT;
 251             break;
 252         case OPT_DECRYPT:
 253             operation = SMIME_DECRYPT;
 254             break;
 255         case OPT_SIGN:
 256             operation = SMIME_SIGN;
 257             break;
 258         case OPT_SIGN_RECEIPT:
 259             operation = SMIME_SIGN_RECEIPT;
 260             break;
 261         case OPT_RESIGN:
 262             operation = SMIME_RESIGN;
 263             break;
 264         case OPT_VERIFY:
 265             operation = SMIME_VERIFY;
 266             break;
 267         case OPT_VERIFY_RETCODE:
 268             verify_retcode = 1;
 269             break;
 270         case OPT_VERIFY_RECEIPT:
 271             operation = SMIME_VERIFY_RECEIPT;
 272             rctfile = opt_arg();
 273             break;
 274         case OPT_CMSOUT:
 275             operation = SMIME_CMSOUT;
 276             break;
 277         case OPT_DATA_OUT:
 278             operation = SMIME_DATAOUT;
 279             break;
 280         case OPT_DATA_CREATE:
 281             operation = SMIME_DATA_CREATE;
 282             break;
 283         case OPT_DIGEST_VERIFY:
 284             operation = SMIME_DIGEST_VERIFY;
 285             break;
 286         case OPT_DIGEST_CREATE:
 287             operation = SMIME_DIGEST_CREATE;
 288             break;
 289         case OPT_COMPRESS:
 290             operation = SMIME_COMPRESS;
 291             break;
 292         case OPT_UNCOMPRESS:
 293             operation = SMIME_UNCOMPRESS;
 294             break;
 295         case OPT_ED_DECRYPT:
 296             operation = SMIME_ENCRYPTED_DECRYPT;
 297             break;
 298         case OPT_ED_ENCRYPT:
 299             operation = SMIME_ENCRYPTED_ENCRYPT;
 300             break;
 301         case OPT_DEBUG_DECRYPT:
 302             flags |= CMS_DEBUG_DECRYPT;
 303             break;
 304         case OPT_TEXT:
 305             flags |= CMS_TEXT;
 306             break;
 307         case OPT_ASCIICRLF:
 308             flags |= CMS_ASCIICRLF;
 309             break;
 310         case OPT_NOINTERN:
 311             flags |= CMS_NOINTERN;
 312             break;
 313         case OPT_NOVERIFY:
 314             flags |= CMS_NO_SIGNER_CERT_VERIFY;
 315             break;
 316         case OPT_NOCERTS:
 317             flags |= CMS_NOCERTS;
 318             break;
 319         case OPT_NOATTR:
 320             flags |= CMS_NOATTR;
 321             break;
 322         case OPT_NODETACH:
 323             flags &= ~CMS_DETACHED;
 324             break;
 325         case OPT_NOSMIMECAP:
 326             flags |= CMS_NOSMIMECAP;
 327             break;
 328         case OPT_BINARY:
 329             flags |= CMS_BINARY;
 330             break;
 331         case OPT_KEYID:
 332             flags |= CMS_USE_KEYID;
 333             break;
 334         case OPT_NOSIGS:
 335             flags |= CMS_NOSIGS;
 336             break;
 337         case OPT_NO_CONTENT_VERIFY:
 338             flags |= CMS_NO_CONTENT_VERIFY;
 339             break;
 340         case OPT_NO_ATTR_VERIFY:
 341             flags |= CMS_NO_ATTR_VERIFY;
 342             break;
 343         case OPT_INDEF:
 344             flags |= CMS_STREAM;
 345             break;
 346         case OPT_NOINDEF:
 347             flags &= ~CMS_STREAM;
 348             break;
 349         case OPT_CRLFEOL:
 350             mime_eol = "\r\n";
 351             flags |= CMS_CRLFEOL;
 352             break;
 353         case OPT_NOOUT:
 354             noout = 1;
 355             break;
 356         case OPT_RR_PRINT:
 357             rr_print = 1;
 358             break;
 359         case OPT_RR_ALL:
 360             rr_allorfirst = 0;
 361             break;
 362         case OPT_RR_FIRST:
 363             rr_allorfirst = 1;
 364             break;
 365         case OPT_RCTFORM:
 366             if (rctformat == FORMAT_SMIME)
 367                 rcms = SMIME_read_CMS(rctin, NULL);
 368             else if (rctformat == FORMAT_PEM)
 369                 rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
 370             else if (rctformat == FORMAT_ASN1)
 371                 if (!opt_format(opt_arg(),
 372                                 OPT_FMT_PEMDER | OPT_FMT_SMIME, &rctformat))
 373                     goto opthelp;
 374             break;
 375         case OPT_CERTFILE:
 376             certfile = opt_arg();
 377             break;
 378         case OPT_CAFILE:
 379             CAfile = opt_arg();
 380             break;
 381         case OPT_CAPATH:
 382             CApath = opt_arg();
 383             break;
 384         case OPT_NOCAFILE:
 385             noCAfile = 1;
 386             break;
 387         case OPT_NOCAPATH:
 388             noCApath = 1;
 389             break;
 390         case OPT_IN:
 391             infile = opt_arg();
 392             break;
 393         case OPT_CONTENT:
 394             contfile = opt_arg();
 395             break;
 396         case OPT_RR_FROM:
 397             if (rr_from == NULL
 398                 && (rr_from = sk_OPENSSL_STRING_new_null()) == NULL)
 399                 goto end;
 400             sk_OPENSSL_STRING_push(rr_from, opt_arg());
 401             break;
 402         case OPT_RR_TO:
 403             if (rr_to == NULL
 404                 && (rr_to = sk_OPENSSL_STRING_new_null()) == NULL)
 405                 goto end;
 406             sk_OPENSSL_STRING_push(rr_to, opt_arg());
 407             break;
 408         case OPT_PRINT:
 409             noout = print = 1;
 410             break;
 411         case OPT_SECRETKEY:
 412             if (secret_key != NULL) {
 413                 BIO_printf(bio_err, "Invalid key (supplied twice) %s\n",
 414                            opt_arg());
 415                 goto opthelp;
 416             }
 417             secret_key = OPENSSL_hexstr2buf(opt_arg(), &ltmp);
 418             if (secret_key == NULL) {
 419                 BIO_printf(bio_err, "Invalid key %s\n", opt_arg());
 420                 goto end;
 421             }
 422             secret_keylen = (size_t)ltmp;
 423             break;
 424         case OPT_SECRETKEYID:
 425             if (secret_keyid != NULL) {
 426                 BIO_printf(bio_err, "Invalid id (supplied twice) %s\n",
 427                            opt_arg());
 428                 goto opthelp;
 429             }
 430             secret_keyid = OPENSSL_hexstr2buf(opt_arg(), &ltmp);
 431             if (secret_keyid == NULL) {
 432                 BIO_printf(bio_err, "Invalid id %s\n", opt_arg());
 433                 goto opthelp;
 434             }
 435             secret_keyidlen = (size_t)ltmp;
 436             break;
 437         case OPT_PWRI_PASSWORD:
 438             pwri_pass = (unsigned char *)opt_arg();
 439             break;
 440         case OPT_ECONTENT_TYPE:
 441             if (econtent_type != NULL) {
 442                 BIO_printf(bio_err, "Invalid OID (supplied twice) %s\n",
 443                            opt_arg());
 444                 goto opthelp;
 445             }
 446             econtent_type = OBJ_txt2obj(opt_arg(), 0);
 447             if (econtent_type == NULL) {
 448                 BIO_printf(bio_err, "Invalid OID %s\n", opt_arg());
 449                 goto opthelp;
 450             }
 451             break;
 452         case OPT_RAND:
 453             inrand = opt_arg();
 454             need_rand = 1;
 455             break;
 456         case OPT_ENGINE:
 457             e = setup_engine(opt_arg(), 0);
 458             break;
 459         case OPT_PASSIN:
 460             passinarg = opt_arg();
 461             break;
 462         case OPT_TO:
 463             to = opt_arg();
 464             break;
 465         case OPT_FROM:
 466             from = opt_arg();
 467             break;
 468         case OPT_SUBJECT:
 469             subject = opt_arg();
 470             break;
 471         case OPT_CERTSOUT:
 472             certsoutfile = opt_arg();
 473             break;
 474         case OPT_MD:
 475             if (!opt_md(opt_arg(), &sign_md))
 476                 goto end;
 477             break;
 478         case OPT_SIGNER:
 479             /* If previous -signer argument add signer to list */
 480             if (signerfile != NULL) {
 481                 if (sksigners == NULL
 482                     && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 483                     goto end;
 484                 sk_OPENSSL_STRING_push(sksigners, signerfile);
 485                 if (keyfile == NULL)
 486                     keyfile = signerfile;
 487                 if (skkeys == NULL
 488                     && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 489                     goto end;
 490                 sk_OPENSSL_STRING_push(skkeys, keyfile);
 491                 keyfile = NULL;
 492             }
 493             signerfile = opt_arg();
 494             break;
 495         case OPT_INKEY:
 496             /* If previous -inkey argument add signer to list */
 497             if (keyfile != NULL) {
 498                 if (signerfile == NULL) {
 499                     BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 500                     goto end;
 501                 }
 502                 if (sksigners == NULL
 503                     && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 504                     goto end;
 505                 sk_OPENSSL_STRING_push(sksigners, signerfile);
 506                 signerfile = NULL;
 507                 if (skkeys == NULL
 508                     && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 509                     goto end;
 510                 sk_OPENSSL_STRING_push(skkeys, keyfile);
 511             }
 512             keyfile = opt_arg();
 513             break;
 514         case OPT_KEYFORM:
 515             if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
 516                 goto opthelp;
 517             break;
 518         case OPT_RECIP:
 519             if (operation == SMIME_ENCRYPT) {
 520                 if (encerts == NULL && (encerts = sk_X509_new_null()) == NULL)
 521                     goto end;
 522                 cert = load_cert(opt_arg(), FORMAT_PEM,
 523                                  "recipient certificate file");
 524                 if (cert == NULL)
 525                     goto end;
 526                 sk_X509_push(encerts, cert);
 527                 cert = NULL;
 528             } else {
 529                 recipfile = opt_arg();
 530             }
 531             break;
 532         case OPT_CIPHER:
 533             if (!opt_cipher(opt_unknown(), &cipher))
 534                 goto end;
 535             break;
 536         case OPT_KEYOPT:
 537             keyidx = -1;
 538             if (operation == SMIME_ENCRYPT) {
 539                 if (encerts != NULL)
 540                     keyidx += sk_X509_num(encerts);
 541             } else {
 542                 if (keyfile != NULL || signerfile != NULL)
 543                     keyidx++;
 544                 if (skkeys != NULL)
 545                     keyidx += sk_OPENSSL_STRING_num(skkeys);
 546             }
 547             if (keyidx < 0) {
 548                 BIO_printf(bio_err, "No key specified\n");
 549                 goto opthelp;
 550             }
 551             if (key_param == NULL || key_param->idx != keyidx) {
 552                 cms_key_param *nparam;
 553                 nparam = app_malloc(sizeof(*nparam), "key param buffer");
 554                 nparam->idx = keyidx;
 555                 if ((nparam->param = sk_OPENSSL_STRING_new_null()) == NULL)
 556                     goto end;
 557                 nparam->next = NULL;
 558                 if (key_first == NULL)
 559                     key_first = nparam;
 560                 else
 561                     key_param->next = nparam;
 562                 key_param = nparam;
 563             }
 564             sk_OPENSSL_STRING_push(key_param->param, opt_arg());
 565             break;
 566         case OPT_V_CASES:
 567             if (!opt_verify(o, vpm))
 568                 goto end;
 569             vpmtouched++;
 570             break;
 571         case OPT_3DES_WRAP:
 572 # ifndef OPENSSL_NO_DES
 573             wrap_cipher = EVP_des_ede3_wrap();
 574 # endif
 575             break;
 576         case OPT_AES128_WRAP:
 577             wrap_cipher = EVP_aes_128_wrap();
 578             break;
 579         case OPT_AES192_WRAP:
 580             wrap_cipher = EVP_aes_192_wrap();
 581             break;
 582         case OPT_AES256_WRAP:
 583             wrap_cipher = EVP_aes_256_wrap();
 584             break;
 585         }
 586     }
 587     argc = opt_num_rest();
 588     argv = opt_rest();
 589
 590     if ((rr_allorfirst != -1 || rr_from != NULL) && rr_to == NULL) {
 591         BIO_puts(bio_err, "No Signed Receipts Recipients\n");
 592         goto opthelp;
 593     }
 594
 595     if (!(operation & SMIME_SIGNERS) && (rr_to != NULL || rr_from != NULL)) {
 596         BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
 597         goto opthelp;
 598     }
 599     if (!(operation & SMIME_SIGNERS) && (skkeys != NULL || sksigners != NULL)) {
 600         BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
 601         goto opthelp;
 602     }
 603
 604     if (operation & SMIME_SIGNERS) {
 605         if (keyfile != NULL && signerfile == NULL) {
 606             BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 607             goto opthelp;
 608         }
 609         /* Check to see if any final signer needs to be appended */
 610         if (signerfile != NULL) {
 611             if (sksigners == NULL
 612                 && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 613                 goto end;
 614             sk_OPENSSL_STRING_push(sksigners, signerfile);
 615             if (skkeys == NULL && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 616                 goto end;
 617             if (keyfile == NULL)
 618                 keyfile = signerfile;
 619             sk_OPENSSL_STRING_push(skkeys, keyfile);
 620         }
 621         if (sksigners == NULL) {
 622             BIO_printf(bio_err, "No signer certificate specified\n");
 623             goto opthelp;
 624         }
 625         signerfile = NULL;
 626         keyfile = NULL;
 627         need_rand = 1;
 628     } else if (operation == SMIME_DECRYPT) {
 629         if (recipfile == NULL && keyfile == NULL
 630             && secret_key == NULL && pwri_pass == NULL) {
 631             BIO_printf(bio_err,
 632                        "No recipient certificate or key specified\n");
 633             goto opthelp;
 634         }
 635     } else if (operation == SMIME_ENCRYPT) {
 636         if (*argv == NULL && secret_key == NULL
 637             && pwri_pass == NULL && encerts == NULL) {
 638             BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
 639             goto opthelp;
 640         }
 641         need_rand = 1;
 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     if (need_rand) {
 652         app_RAND_load_file(NULL, (inrand != NULL));
 653         if (inrand != NULL)
 654             BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
 655                        app_RAND_load_files(inrand));
 656     }
 657
 658     ret = 2;
 659
 660     if (!(operation & SMIME_SIGNERS))
 661         flags &= ~CMS_DETACHED;
 662
 663     if (!(operation & SMIME_OP))
 664         if (flags & CMS_BINARY)
 665             outformat = FORMAT_BINARY;
 666
 667     if (!(operation & SMIME_IP))
 668         if (flags & CMS_BINARY)
 669             informat = FORMAT_BINARY;
 670
 671     if (operation == SMIME_ENCRYPT) {
 672         if (!cipher) {
 673 # ifndef OPENSSL_NO_DES
 674             cipher = EVP_des_ede3_cbc();
 675 # else
 676             BIO_printf(bio_err, "No cipher selected\n");
 677             goto end;
 678 # endif
 679         }
 680
 681         if (secret_key && !secret_keyid) {
 682             BIO_printf(bio_err, "No secret key id\n");
 683             goto end;
 684         }
 685
 686         if (*argv && encerts == NULL)
 687             if ((encerts = sk_X509_new_null()) == NULL)
 688                 goto end;
 689         while (*argv) {
 690             if ((cert = load_cert(*argv, FORMAT_PEM,
 691                                   "recipient certificate file")) == NULL)
 692                 goto end;
 693             sk_X509_push(encerts, cert);
 694             cert = NULL;
 695             argv++;
 696         }
 697     }
 698
 699     if (certfile != NULL) {
 700         if (!load_certs(certfile, &other, FORMAT_PEM, NULL,
 701                         "certificate file")) {
 702             ERR_print_errors(bio_err);
 703             goto end;
 704         }
 705     }
 706
 707     if (recipfile != NULL && (operation == SMIME_DECRYPT)) {
 708         if ((recip = load_cert(recipfile, FORMAT_PEM,
 709                                "recipient certificate file")) == NULL) {
 710             ERR_print_errors(bio_err);
 711             goto end;
 712         }
 713     }
 714
 715     if (operation == SMIME_SIGN_RECEIPT) {
 716         if ((signer = load_cert(signerfile, FORMAT_PEM,
 717                                 "receipt signer certificate file")) == NULL) {
 718             ERR_print_errors(bio_err);
 719             goto end;
 720         }
 721     }
 722
 723     if (operation == SMIME_DECRYPT) {
 724         if (keyfile == NULL)
 725             keyfile = recipfile;
 726     } else if ((operation == SMIME_SIGN) || (operation == SMIME_SIGN_RECEIPT)) {
 727         if (keyfile == NULL)
 728             keyfile = signerfile;
 729     } else {
 730         keyfile = NULL;
 731     }
 732
 733     if (keyfile != NULL) {
 734         key = load_key(keyfile, keyform, 0, passin, e, "signing key file");
 735         if (key == NULL)
 736             goto end;
 737     }
 738
 739     in = bio_open_default(infile, 'r', informat);
 740     if (in == NULL)
 741         goto end;
 742
 743     if (operation & SMIME_IP) {
 744         if (informat == FORMAT_SMIME) {
 745             cms = SMIME_read_CMS(in, &indata);
 746         } else if (informat == FORMAT_PEM) {
 747             cms = PEM_read_bio_CMS(in, NULL, NULL, NULL);
 748         } else if (informat == FORMAT_ASN1) {
 749             cms = d2i_CMS_bio(in, NULL);
 750         } else {
 751             BIO_printf(bio_err, "Bad input format for CMS file\n");
 752             goto end;
 753         }
 754
 755         if (cms == NULL) {
 756             BIO_printf(bio_err, "Error reading S/MIME message\n");
 757             goto end;
 758         }
 759         if (contfile != NULL) {
 760             BIO_free(indata);
 761             if ((indata = BIO_new_file(contfile, "rb")) == NULL) {
 762                 BIO_printf(bio_err, "Can't read content file %s\n", contfile);
 763                 goto end;
 764             }
 765         }
 766         if (certsoutfile != NULL) {
 767             STACK_OF(X509) *allcerts;
 768             allcerts = CMS_get1_certs(cms);
 769             if (!save_certs(certsoutfile, allcerts)) {
 770                 BIO_printf(bio_err,
 771                            "Error writing certs to %s\n", certsoutfile);
 772                 ret = 5;
 773                 goto end;
 774             }
 775             sk_X509_pop_free(allcerts, X509_free);
 776         }
 777     }
 778
 779     if (rctfile != NULL) {
 780         char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r";
 781         if ((rctin = BIO_new_file(rctfile, rctmode)) == NULL) {
 782             BIO_printf(bio_err, "Can't open receipt file %s\n", rctfile);
 783             goto end;
 784         }
 785
 786         if (rctformat == FORMAT_SMIME) {
 787             rcms = SMIME_read_CMS(rctin, NULL);
 788         } else if (rctformat == FORMAT_PEM) {
 789             rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
 790         } else if (rctformat == FORMAT_ASN1) {
 791             rcms = d2i_CMS_bio(rctin, NULL);
 792         } else {
 793             BIO_printf(bio_err, "Bad input format for receipt\n");
 794             goto end;
 795         }
 796
 797         if (rcms == NULL) {
 798             BIO_printf(bio_err, "Error reading receipt\n");
 799             goto end;
 800         }
 801     }
 802
 803     out = bio_open_default(outfile, 'w', outformat);
 804     if (out == NULL)
 805         goto end;
 806
 807     if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT)) {
 808         if ((store = setup_verify(CAfile, CApath, noCAfile, noCApath)) == NULL)
 809             goto end;
 810         X509_STORE_set_verify_cb(store, cms_cb);
 811         if (vpmtouched)
 812             X509_STORE_set1_param(store, vpm);
 813     }
 814
 815     ret = 3;
 816
 817     if (operation == SMIME_DATA_CREATE) {
 818         cms = CMS_data_create(in, flags);
 819     } else if (operation == SMIME_DIGEST_CREATE) {
 820         cms = CMS_digest_create(in, sign_md, flags);
 821     } else if (operation == SMIME_COMPRESS) {
 822         cms = CMS_compress(in, -1, flags);
 823     } else if (operation == SMIME_ENCRYPT) {
 824         int i;
 825         flags |= CMS_PARTIAL;
 826         cms = CMS_encrypt(NULL, in, cipher, flags);
 827         if (cms == NULL)
 828             goto end;
 829         for (i = 0; i < sk_X509_num(encerts); i++) {
 830             CMS_RecipientInfo *ri;
 831             cms_key_param *kparam;
 832             int tflags = flags;
 833             X509 *x = sk_X509_value(encerts, i);
 834             for (kparam = key_first; kparam; kparam = kparam->next) {
 835                 if (kparam->idx == i) {
 836                     tflags |= CMS_KEY_PARAM;
 837                     break;
 838                 }
 839             }
 840             ri = CMS_add1_recipient_cert(cms, x, tflags);
 841             if (ri == NULL)
 842                 goto end;
 843             if (kparam != NULL) {
 844                 EVP_PKEY_CTX *pctx;
 845                 pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
 846                 if (!cms_set_pkey_param(pctx, kparam->param))
 847                     goto end;
 848             }
 849             if (CMS_RecipientInfo_type(ri) == CMS_RECIPINFO_AGREE
 850                 && wrap_cipher) {
 851                 EVP_CIPHER_CTX *wctx;
 852                 wctx = CMS_RecipientInfo_kari_get0_ctx(ri);
 853                 EVP_EncryptInit_ex(wctx, wrap_cipher, NULL, NULL, NULL);
 854             }
 855         }
 856
 857         if (secret_key != NULL) {
 858             if (!CMS_add0_recipient_key(cms, NID_undef,
 859                                         secret_key, secret_keylen,
 860                                         secret_keyid, secret_keyidlen,
 861                                         NULL, NULL, NULL))
 862                 goto end;
 863             /* NULL these because call absorbs them */
 864             secret_key = NULL;
 865             secret_keyid = NULL;
 866         }
 867         if (pwri_pass != NULL) {
 868             pwri_tmp = (unsigned char *)OPENSSL_strdup((char *)pwri_pass);
 869             if (pwri_tmp == NULL)
 870                 goto end;
 871             if (CMS_add0_recipient_password(cms,
 872                                             -1, NID_undef, NID_undef,
 873                                             pwri_tmp, -1, NULL) == NULL)
 874                 goto end;
 875             pwri_tmp = NULL;
 876         }
 877         if (!(flags & CMS_STREAM)) {
 878             if (!CMS_final(cms, in, NULL, flags))
 879                 goto end;
 880         }
 881     } else if (operation == SMIME_ENCRYPTED_ENCRYPT) {
 882         cms = CMS_EncryptedData_encrypt(in, cipher,
 883                                         secret_key, secret_keylen, flags);
 884
 885     } else if (operation == SMIME_SIGN_RECEIPT) {
 886         CMS_ContentInfo *srcms = NULL;
 887         STACK_OF(CMS_SignerInfo) *sis;
 888         CMS_SignerInfo *si;
 889         sis = CMS_get0_SignerInfos(cms);
 890         if (sis == NULL)
 891             goto end;
 892         si = sk_CMS_SignerInfo_value(sis, 0);
 893         srcms = CMS_sign_receipt(si, signer, key, other, flags);
 894         if (srcms == NULL)
 895             goto end;
 896         CMS_ContentInfo_free(cms);
 897         cms = srcms;
 898     } else if (operation & SMIME_SIGNERS) {
 899         int i;
 900         /*
 901          * If detached data content we enable streaming if S/MIME output
 902          * format.
 903          */
 904         if (operation == SMIME_SIGN) {
 905
 906             if (flags & CMS_DETACHED) {
 907                 if (outformat == FORMAT_SMIME)
 908                     flags |= CMS_STREAM;
 909             }
 910             flags |= CMS_PARTIAL;
 911             cms = CMS_sign(NULL, NULL, other, in, flags);
 912             if (cms == NULL)
 913                 goto end;
 914             if (econtent_type != NULL)
 915                 CMS_set1_eContentType(cms, econtent_type);
 916
 917             if (rr_to != NULL) {
 918                 rr = make_receipt_request(rr_to, rr_allorfirst, rr_from);
 919                 if (rr == NULL) {
 920                     BIO_puts(bio_err,
 921                              "Signed Receipt Request Creation Error\n");
 922                     goto end;
 923                 }
 924             }
 925         } else {
 926             flags |= CMS_REUSE_DIGEST;
 927         }
 928         for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
 929             CMS_SignerInfo *si;
 930             cms_key_param *kparam;
 931             int tflags = flags;
 932             signerfile = sk_OPENSSL_STRING_value(sksigners, i);
 933             keyfile = sk_OPENSSL_STRING_value(skkeys, i);
 934
 935             signer = load_cert(signerfile, FORMAT_PEM, "signer certificate");
 936             if (signer == NULL)
 937                 goto end;
 938             key = load_key(keyfile, keyform, 0, passin, e, "signing key file");
 939             if (key == NULL)
 940                 goto end;
 941             for (kparam = key_first; kparam; kparam = kparam->next) {
 942                 if (kparam->idx == i) {
 943                     tflags |= CMS_KEY_PARAM;
 944                     break;
 945                 }
 946             }
 947             si = CMS_add1_signer(cms, signer, key, sign_md, tflags);
 948             if (si == NULL)
 949                 goto end;
 950             if (kparam != NULL) {
 951                 EVP_PKEY_CTX *pctx;
 952                 pctx = CMS_SignerInfo_get0_pkey_ctx(si);
 953                 if (!cms_set_pkey_param(pctx, kparam->param))
 954                     goto end;
 955             }
 956             if (rr != NULL && !CMS_add1_ReceiptRequest(si, rr))
 957                 goto end;
 958             X509_free(signer);
 959             signer = NULL;
 960             EVP_PKEY_free(key);
 961             key = NULL;
 962         }
 963         /* If not streaming or resigning finalize structure */
 964         if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) {
 965             if (!CMS_final(cms, in, NULL, flags))
 966                 goto end;
 967         }
 968     }
 969
 970     if (cms == NULL) {
 971         BIO_printf(bio_err, "Error creating CMS structure\n");
 972         goto end;
 973     }
 974
 975     ret = 4;
 976     if (operation == SMIME_DECRYPT) {
 977         if (flags & CMS_DEBUG_DECRYPT)
 978             CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
 979
 980         if (secret_key != NULL) {
 981             if (!CMS_decrypt_set1_key(cms,
 982                                       secret_key, secret_keylen,
 983                                       secret_keyid, secret_keyidlen)) {
 984                 BIO_puts(bio_err, "Error decrypting CMS using secret key\n");
 985                 goto end;
 986             }
 987         }
 988
 989         if (key != NULL) {
 990             if (!CMS_decrypt_set1_pkey(cms, key, recip)) {
 991                 BIO_puts(bio_err, "Error decrypting CMS using private key\n");
 992                 goto end;
 993             }
 994         }
 995
 996         if (pwri_pass != NULL) {
 997             if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) {
 998                 BIO_puts(bio_err, "Error decrypting CMS using password\n");
 999                 goto end;
1000             }
1001         }
1002
1003         if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) {
1004             BIO_printf(bio_err, "Error decrypting CMS structure\n");
1005             goto end;
1006         }
1007     } else if (operation == SMIME_DATAOUT) {
1008         if (!CMS_data(cms, out, flags))
1009             goto end;
1010     } else if (operation == SMIME_UNCOMPRESS) {
1011         if (!CMS_uncompress(cms, indata, out, flags))
1012             goto end;
1013     } else if (operation == SMIME_DIGEST_VERIFY) {
1014         if (CMS_digest_verify(cms, indata, out, flags) > 0) {
1015             BIO_printf(bio_err, "Verification successful\n");
1016         } else {
1017             BIO_printf(bio_err, "Verification failure\n");
1018             goto end;
1019         }
1020     } else if (operation == SMIME_ENCRYPTED_DECRYPT) {
1021         if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
1022                                        indata, out, flags))
1023             goto end;
1024     } else if (operation == SMIME_VERIFY) {
1025         if (CMS_verify(cms, other, store, indata, out, flags) > 0) {
1026             BIO_printf(bio_err, "Verification successful\n");
1027         } else {
1028             BIO_printf(bio_err, "Verification failure\n");
1029             if (verify_retcode)
1030                 ret = verify_err + 32;
1031             goto end;
1032         }
1033         if (signerfile != NULL) {
1034             STACK_OF(X509) *signers;
1035             signers = CMS_get0_signers(cms);
1036             if (!save_certs(signerfile, signers)) {
1037                 BIO_printf(bio_err,
1038                            "Error writing signers to %s\n", signerfile);
1039                 ret = 5;
1040                 goto end;
1041             }
1042             sk_X509_free(signers);
1043         }
1044         if (rr_print)
1045             receipt_request_print(cms);
1046
1047     } else if (operation == SMIME_VERIFY_RECEIPT) {
1048         if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0) {
1049             BIO_printf(bio_err, "Verification successful\n");
1050         } else {
1051             BIO_printf(bio_err, "Verification failure\n");
1052             goto end;
1053         }
1054     } else {
1055         if (noout) {
1056             if (print)
1057                 CMS_ContentInfo_print_ctx(out, cms, 0, NULL);
1058         } else if (outformat == FORMAT_SMIME) {
1059             if (to)
1060                 BIO_printf(out, "To: %s%s", to, mime_eol);
1061             if (from)
1062                 BIO_printf(out, "From: %s%s", from, mime_eol);
1063             if (subject)
1064                 BIO_printf(out, "Subject: %s%s", subject, mime_eol);
1065             if (operation == SMIME_RESIGN)
1066                 ret = SMIME_write_CMS(out, cms, indata, flags);
1067             else
1068                 ret = SMIME_write_CMS(out, cms, in, flags);
1069         } else if (outformat == FORMAT_PEM) {
1070             ret = PEM_write_bio_CMS_stream(out, cms, in, flags);
1071         } else if (outformat == FORMAT_ASN1) {
1072             ret = i2d_CMS_bio_stream(out, cms, in, flags);
1073         } else {
1074             BIO_printf(bio_err, "Bad output format for CMS file\n");
1075             goto end;
1076         }
1077         if (ret <= 0) {
1078             ret = 6;
1079             goto end;
1080         }
1081     }
1082     ret = 0;
1083  end:
1084     if (ret)
1085         ERR_print_errors(bio_err);
1086     if (need_rand)
1087         app_RAND_write_file(NULL);
1088     sk_X509_pop_free(encerts, X509_free);
1089     sk_X509_pop_free(other, X509_free);
1090     X509_VERIFY_PARAM_free(vpm);
1091     sk_OPENSSL_STRING_free(sksigners);
1092     sk_OPENSSL_STRING_free(skkeys);
1093     OPENSSL_free(secret_key);
1094     OPENSSL_free(secret_keyid);
1095     OPENSSL_free(pwri_tmp);
1096     ASN1_OBJECT_free(econtent_type);
1097     CMS_ReceiptRequest_free(rr);
1098     sk_OPENSSL_STRING_free(rr_to);
1099     sk_OPENSSL_STRING_free(rr_from);
1100     for (key_param = key_first; key_param;) {
1101         cms_key_param *tparam;
1102         sk_OPENSSL_STRING_free(key_param->param);
1103         tparam = key_param->next;
1104         OPENSSL_free(key_param);
1105         key_param = tparam;
1106     }
1107     X509_STORE_free(store);
1108     X509_free(cert);
1109     X509_free(recip);
1110     X509_free(signer);
1111     EVP_PKEY_free(key);
1112     CMS_ContentInfo_free(cms);
1113     CMS_ContentInfo_free(rcms);
1114     release_engine(e);
1115     BIO_free(rctin);
1116     BIO_free(in);
1117     BIO_free(indata);
1118     BIO_free_all(out);
1119     OPENSSL_free(passin);
1120     return (ret);
1121 }
1122
1123 static int save_certs(char *signerfile, STACK_OF(X509) *signers)
1124 {
1125     int i;
1126     BIO *tmp;
1127     if (signerfile == NULL)
1128         return 1;
1129     tmp = BIO_new_file(signerfile, "w");
1130     if (tmp == NULL)
1131         return 0;
1132     for (i = 0; i < sk_X509_num(signers); i++)
1133         PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
1134     BIO_free(tmp);
1135     return 1;
1136 }
1137
1138 /* Minimal callback just to output policy info (if any) */
1139
1140 static int cms_cb(int ok, X509_STORE_CTX *ctx)
1141 {
1142     int error;
1143
1144     error = X509_STORE_CTX_get_error(ctx);
1145
1146     verify_err = error;
1147
1148     if ((error != X509_V_ERR_NO_EXPLICIT_POLICY)
1149         && ((error != X509_V_OK) || (ok != 2)))
1150         return ok;
1151
1152     policies_print(ctx);
1153
1154     return ok;
1155
1156 }
1157
1158 static void gnames_stack_print(STACK_OF(GENERAL_NAMES) *gns)
1159 {
1160     STACK_OF(GENERAL_NAME) *gens;
1161     GENERAL_NAME *gen;
1162     int i, j;
1163
1164     for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) {
1165         gens = sk_GENERAL_NAMES_value(gns, i);
1166         for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) {
1167             gen = sk_GENERAL_NAME_value(gens, j);
1168             BIO_puts(bio_err, "    ");
1169             GENERAL_NAME_print(bio_err, gen);
1170             BIO_puts(bio_err, "\n");
1171         }
1172     }
1173     return;
1174 }
1175
1176 static void receipt_request_print(CMS_ContentInfo *cms)
1177 {
1178     STACK_OF(CMS_SignerInfo) *sis;
1179     CMS_SignerInfo *si;
1180     CMS_ReceiptRequest *rr;
1181     int allorfirst;
1182     STACK_OF(GENERAL_NAMES) *rto, *rlist;
1183     ASN1_STRING *scid;
1184     int i, rv;
1185     sis = CMS_get0_SignerInfos(cms);
1186     for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) {
1187         si = sk_CMS_SignerInfo_value(sis, i);
1188         rv = CMS_get1_ReceiptRequest(si, &rr);
1189         BIO_printf(bio_err, "Signer %d:\n", i + 1);
1190         if (rv == 0) {
1191             BIO_puts(bio_err, "  No Receipt Request\n");
1192         } else if (rv < 0) {
1193             BIO_puts(bio_err, "  Receipt Request Parse Error\n");
1194             ERR_print_errors(bio_err);
1195         } else {
1196             const char *id;
1197             int idlen;
1198             CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
1199                                            &rlist, &rto);
1200             BIO_puts(bio_err, "  Signed Content ID:\n");
1201             idlen = ASN1_STRING_length(scid);
1202             id = (const char *)ASN1_STRING_get0_data(scid);
1203             BIO_dump_indent(bio_err, id, idlen, 4);
1204             BIO_puts(bio_err, "  Receipts From");
1205             if (rlist != NULL) {
1206                 BIO_puts(bio_err, " List:\n");
1207                 gnames_stack_print(rlist);
1208             } else if (allorfirst == 1) {
1209                 BIO_puts(bio_err, ": First Tier\n");
1210             } else if (allorfirst == 0) {
1211                 BIO_puts(bio_err, ": All\n");
1212             } else {
1213                 BIO_printf(bio_err, " Unknown (%d)\n", allorfirst);
1214             }
1215             BIO_puts(bio_err, "  Receipts To:\n");
1216             gnames_stack_print(rto);
1217         }
1218         CMS_ReceiptRequest_free(rr);
1219     }
1220 }
1221
1222 static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK_OF(OPENSSL_STRING) *ns)
1223 {
1224     int i;
1225     STACK_OF(GENERAL_NAMES) *ret;
1226     GENERAL_NAMES *gens = NULL;
1227     GENERAL_NAME *gen = NULL;
1228     ret = sk_GENERAL_NAMES_new_null();
1229     if (ret == NULL)
1230         goto err;
1231     for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++) {
1232         char *str = sk_OPENSSL_STRING_value(ns, i);
1233         gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0);
1234         if (gen == NULL)
1235             goto err;
1236         gens = GENERAL_NAMES_new();
1237         if (gens == NULL)
1238             goto err;
1239         if (!sk_GENERAL_NAME_push(gens, gen))
1240             goto err;
1241         gen = NULL;
1242         if (!sk_GENERAL_NAMES_push(ret, gens))
1243             goto err;
1244         gens = NULL;
1245     }
1246
1247     return ret;
1248
1249  err:
1250     sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
1251     GENERAL_NAMES_free(gens);
1252     GENERAL_NAME_free(gen);
1253     return NULL;
1254 }
1255
1256 static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING)
1257                                                 *rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING)
1258                                                 *rr_from)
1259 {
1260     STACK_OF(GENERAL_NAMES) *rct_to = NULL, *rct_from = NULL;
1261     CMS_ReceiptRequest *rr;
1262     rct_to = make_names_stack(rr_to);
1263     if (rct_to == NULL)
1264         goto err;
1265     if (rr_from != NULL) {
1266         rct_from = make_names_stack(rr_from);
1267         if (rct_from == NULL)
1268             goto err;
1269     } else {
1270         rct_from = NULL;
1271     }
1272     rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from,
1273                                     rct_to);
1274     return rr;
1275  err:
1276     sk_GENERAL_NAMES_pop_free(rct_to, GENERAL_NAMES_free);
1277     return NULL;
1278 }
1279
1280 static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
1281                               STACK_OF(OPENSSL_STRING) *param)
1282 {
1283     char *keyopt;
1284     int i;
1285     if (sk_OPENSSL_STRING_num(param) <= 0)
1286         return 1;
1287     for (i = 0; i < sk_OPENSSL_STRING_num(param); i++) {
1288         keyopt = sk_OPENSSL_STRING_value(param, i);
1289         if (pkey_ctrl_string(pctx, keyopt) <= 0) {
1290             BIO_printf(bio_err, "parameter error \"%s\"\n", keyopt);
1291             ERR_print_errors(bio_err);
1292             return 0;
1293         }
1294     }
1295     return 1;
1296 }
1297
1298 #endif