crypto/openssl/apps/dgst.c

   1 /* apps/dgst.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58
  59 #include <stdio.h>
  60 #include <string.h>
  61 #include <stdlib.h>
  62 #include "apps.h"
  63 #include <openssl/bio.h>
  64 #include <openssl/err.h>
  65 #include <openssl/evp.h>
  66 #include <openssl/objects.h>
  67 #include <openssl/x509.h>
  68 #include <openssl/pem.h>
  69 #include <openssl/hmac.h>
  70
  71 #undef BUFSIZE
  72 #define BUFSIZE 1024*8
  73
  74 #undef PROG
  75 #define PROG    dgst_main
  76
  77 int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout,
  78           EVP_PKEY *key, unsigned char *sigin, int siglen,
  79           const char *sig_name, const char *md_name,
  80           const char *file,BIO *bmd);
  81
  82 static void list_md_fn(const EVP_MD *m,
  83                         const char *from, const char *to, void *arg)
  84         {
  85         const char *mname;
  86         /* Skip aliases */
  87         if (!m)
  88                 return;
  89         mname = OBJ_nid2ln(EVP_MD_type(m));
  90         /* Skip shortnames */
  91         if (strcmp(from, mname))
  92                 return;
  93         /* Skip clones */
  94         if (EVP_MD_flags(m) & EVP_MD_FLAG_PKEY_DIGEST)
  95                 return;
  96         if (strchr(mname, ' '))
  97                 mname= EVP_MD_name(m);
  98         BIO_printf(arg, "-%-14s to use the %s message digest algorithm\n",
  99                         mname, mname);
 100         }
 101
 102 int MAIN(int, char **);
 103
 104 int MAIN(int argc, char **argv)
 105         {
 106         ENGINE *e = NULL;
 107         unsigned char *buf=NULL;
 108         int i,err=1;
 109         const EVP_MD *md=NULL,*m;
 110         BIO *in=NULL,*inp;
 111         BIO *bmd=NULL;
 112         BIO *out = NULL;
 113 #define PROG_NAME_SIZE  39
 114         char pname[PROG_NAME_SIZE+1];
 115         int separator=0;
 116         int debug=0;
 117         int keyform=FORMAT_PEM;
 118         const char *outfile = NULL, *keyfile = NULL;
 119         const char *sigfile = NULL, *randfile = NULL;
 120         int out_bin = -1, want_pub = 0, do_verify = 0;
 121         EVP_PKEY *sigkey = NULL;
 122         unsigned char *sigbuf = NULL;
 123         int siglen = 0;
 124         char *passargin = NULL, *passin = NULL;
 125 #ifndef OPENSSL_NO_ENGINE
 126         char *engine=NULL;
 127 #endif
 128         char *hmac_key=NULL;
 129         char *mac_name=NULL;
 130         int non_fips_allow = 0;
 131         STACK_OF(OPENSSL_STRING) *sigopts = NULL, *macopts = NULL;
 132
 133         apps_startup();
 134
 135         if ((buf=(unsigned char *)OPENSSL_malloc(BUFSIZE)) == NULL)
 136                 {
 137                 BIO_printf(bio_err,"out of memory\n");
 138                 goto end;
 139                 }
 140         if (bio_err == NULL)
 141                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 142                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 143
 144         if (!load_config(bio_err, NULL))
 145                 goto end;
 146
 147         /* first check the program name */
 148         program_name(argv[0],pname,sizeof pname);
 149
 150         md=EVP_get_digestbyname(pname);
 151
 152         argc--;
 153         argv++;
 154         while (argc > 0)
 155                 {
 156                 if ((*argv)[0] != '-') break;
 157                 if (strcmp(*argv,"-c") == 0)
 158                         separator=1;
 159                 else if (strcmp(*argv,"-r") == 0)
 160                         separator=2;
 161                 else if (strcmp(*argv,"-rand") == 0)
 162                         {
 163                         if (--argc < 1) break;
 164                         randfile=*(++argv);
 165                         }
 166                 else if (strcmp(*argv,"-out") == 0)
 167                         {
 168                         if (--argc < 1) break;
 169                         outfile=*(++argv);
 170                         }
 171                 else if (strcmp(*argv,"-sign") == 0)
 172                         {
 173                         if (--argc < 1) break;
 174                         keyfile=*(++argv);
 175                         }
 176                 else if (!strcmp(*argv,"-passin"))
 177                         {
 178                         if (--argc < 1)
 179                                 break;
 180                         passargin=*++argv;
 181                         }
 182                 else if (strcmp(*argv,"-verify") == 0)
 183                         {
 184                         if (--argc < 1) break;
 185                         keyfile=*(++argv);
 186                         want_pub = 1;
 187                         do_verify = 1;
 188                         }
 189                 else if (strcmp(*argv,"-prverify") == 0)
 190                         {
 191                         if (--argc < 1) break;
 192                         keyfile=*(++argv);
 193                         do_verify = 1;
 194                         }
 195                 else if (strcmp(*argv,"-signature") == 0)
 196                         {
 197                         if (--argc < 1) break;
 198                         sigfile=*(++argv);
 199                         }
 200                 else if (strcmp(*argv,"-keyform") == 0)
 201                         {
 202                         if (--argc < 1) break;
 203                         keyform=str2fmt(*(++argv));
 204                         }
 205 #ifndef OPENSSL_NO_ENGINE
 206                 else if (strcmp(*argv,"-engine") == 0)
 207                         {
 208                         if (--argc < 1) break;
 209                         engine= *(++argv);
 210                         e = setup_engine(bio_err, engine, 0);
 211                         }
 212 #endif
 213                 else if (strcmp(*argv,"-hex") == 0)
 214                         out_bin = 0;
 215                 else if (strcmp(*argv,"-binary") == 0)
 216                         out_bin = 1;
 217                 else if (strcmp(*argv,"-d") == 0)
 218                         debug=1;
 219                 else if (!strcmp(*argv,"-fips-fingerprint"))
 220                         hmac_key = "etaonrishdlcupfm";
 221                 else if (strcmp(*argv,"-non-fips-allow") == 0)
 222                         non_fips_allow=1;
 223                 else if (!strcmp(*argv,"-hmac"))
 224                         {
 225                         if (--argc < 1)
 226                                 break;
 227                         hmac_key=*++argv;
 228                         }
 229                 else if (!strcmp(*argv,"-mac"))
 230                         {
 231                         if (--argc < 1)
 232                                 break;
 233                         mac_name=*++argv;
 234                         }
 235                 else if (strcmp(*argv,"-sigopt") == 0)
 236                         {
 237                         if (--argc < 1)
 238                                 break;
 239                         if (!sigopts)
 240                                 sigopts = sk_OPENSSL_STRING_new_null();
 241                         if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, *(++argv)))
 242                                 break;
 243                         }
 244                 else if (strcmp(*argv,"-macopt") == 0)
 245                         {
 246                         if (--argc < 1)
 247                                 break;
 248                         if (!macopts)
 249                                 macopts = sk_OPENSSL_STRING_new_null();
 250                         if (!macopts || !sk_OPENSSL_STRING_push(macopts, *(++argv)))
 251                                 break;
 252                         }
 253                 else if ((m=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 254                         md=m;
 255                 else
 256                         break;
 257                 argc--;
 258                 argv++;
 259                 }
 260
 261
 262         if(do_verify && !sigfile) {
 263                 BIO_printf(bio_err, "No signature to verify: use the -signature option\n");
 264                 goto end;
 265         }
 266
 267         if ((argc > 0) && (argv[0][0] == '-')) /* bad option */
 268                 {
 269                 BIO_printf(bio_err,"unknown option '%s'\n",*argv);
 270                 BIO_printf(bio_err,"options are\n");
 271                 BIO_printf(bio_err,"-c              to output the digest with separating colons\n");
 272                 BIO_printf(bio_err,"-r              to output the digest in coreutils format\n");
 273                 BIO_printf(bio_err,"-d              to output debug info\n");
 274                 BIO_printf(bio_err,"-hex            output as hex dump\n");
 275                 BIO_printf(bio_err,"-binary         output in binary form\n");
 276                 BIO_printf(bio_err,"-hmac arg       set the HMAC key to arg\n");
 277                 BIO_printf(bio_err,"-non-fips-allow allow use of non FIPS digest\n");
 278                 BIO_printf(bio_err,"-sign   file    sign digest using private key in file\n");
 279                 BIO_printf(bio_err,"-verify file    verify a signature using public key in file\n");
 280                 BIO_printf(bio_err,"-prverify file  verify a signature using private key in file\n");
 281                 BIO_printf(bio_err,"-keyform arg    key file format (PEM or ENGINE)\n");
 282                 BIO_printf(bio_err,"-out filename   output to filename rather than stdout\n");
 283                 BIO_printf(bio_err,"-signature file signature to verify\n");
 284                 BIO_printf(bio_err,"-sigopt nm:v    signature parameter\n");
 285                 BIO_printf(bio_err,"-hmac key       create hashed MAC with key\n");
 286                 BIO_printf(bio_err,"-mac algorithm  create MAC (not neccessarily HMAC)\n");
 287                 BIO_printf(bio_err,"-macopt nm:v    MAC algorithm parameters or key\n");
 288 #ifndef OPENSSL_NO_ENGINE
 289                 BIO_printf(bio_err,"-engine e       use engine e, possibly a hardware device.\n");
 290 #endif
 291
 292                 EVP_MD_do_all_sorted(list_md_fn, bio_err);
 293                 goto end;
 294                 }
 295
 296         in=BIO_new(BIO_s_file());
 297         bmd=BIO_new(BIO_f_md());
 298         if (debug)
 299                 {
 300                 BIO_set_callback(in,BIO_debug_callback);
 301                 /* needed for windows 3.1 */
 302                 BIO_set_callback_arg(in,(char *)bio_err);
 303                 }
 304
 305         if(!app_passwd(bio_err, passargin, NULL, &passin, NULL))
 306                 {
 307                 BIO_printf(bio_err, "Error getting password\n");
 308                 goto end;
 309                 }
 310
 311         if ((in == NULL) || (bmd == NULL))
 312                 {
 313                 ERR_print_errors(bio_err);
 314                 goto end;
 315                 }
 316
 317         if(out_bin == -1) {
 318                 if(keyfile)
 319                         out_bin = 1;
 320                 else
 321                         out_bin = 0;
 322         }
 323
 324         if(randfile)
 325                 app_RAND_load_file(randfile, bio_err, 0);
 326
 327         if(outfile) {
 328                 if(out_bin)
 329                         out = BIO_new_file(outfile, "wb");
 330                 else    out = BIO_new_file(outfile, "w");
 331         } else {
 332                 out = BIO_new_fp(stdout, BIO_NOCLOSE);
 333 #ifdef OPENSSL_SYS_VMS
 334                 {
 335                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 336                 out = BIO_push(tmpbio, out);
 337                 }
 338 #endif
 339         }
 340
 341         if(!out) {
 342                 BIO_printf(bio_err, "Error opening output file %s\n",
 343                                         outfile ? outfile : "(stdout)");
 344                 ERR_print_errors(bio_err);
 345                 goto end;
 346         }
 347         if ((!!mac_name + !!keyfile + !!hmac_key) > 1)
 348                 {
 349                 BIO_printf(bio_err, "MAC and Signing key cannot both be specified\n");
 350                 goto end;
 351                 }
 352
 353         if(keyfile)
 354                 {
 355                 if (want_pub)
 356                         sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL,
 357                                 e, "key file");
 358                 else
 359                         sigkey = load_key(bio_err, keyfile, keyform, 0, passin,
 360                                 e, "key file");
 361                 if (!sigkey)
 362                         {
 363                         /* load_[pub]key() has already printed an appropriate
 364                            message */
 365                         goto end;
 366                         }
 367                 }
 368
 369         if (mac_name)
 370                 {
 371                 EVP_PKEY_CTX *mac_ctx = NULL;
 372                 int r = 0;
 373                 if (!init_gen_str(bio_err, &mac_ctx, mac_name,e, 0))
 374                         goto mac_end;
 375                 if (macopts)
 376                         {
 377                         char *macopt;
 378                         for (i = 0; i < sk_OPENSSL_STRING_num(macopts); i++)
 379                                 {
 380                                 macopt = sk_OPENSSL_STRING_value(macopts, i);
 381                                 if (pkey_ctrl_string(mac_ctx, macopt) <= 0)
 382                                         {
 383                                         BIO_printf(bio_err,
 384                                                 "MAC parameter error \"%s\"\n",
 385                                                 macopt);
 386                                         ERR_print_errors(bio_err);
 387                                         goto mac_end;
 388                                         }
 389                                 }
 390                         }
 391                 if (EVP_PKEY_keygen(mac_ctx, &sigkey) <= 0)
 392                         {
 393                         BIO_puts(bio_err, "Error generating key\n");
 394                         ERR_print_errors(bio_err);
 395                         goto mac_end;
 396                         }
 397                 r = 1;
 398                 mac_end:
 399                 if (mac_ctx)
 400                         EVP_PKEY_CTX_free(mac_ctx);
 401                 if (r == 0)
 402                         goto end;
 403                 }
 404
 405         if (non_fips_allow)
 406                 {
 407                 EVP_MD_CTX *md_ctx;
 408                 BIO_get_md_ctx(bmd,&md_ctx);
 409                 EVP_MD_CTX_set_flags(md_ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
 410                 }
 411
 412         if (hmac_key)
 413                 {
 414                 sigkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, e,
 415                                         (unsigned char *)hmac_key, -1);
 416                 if (!sigkey)
 417                         goto end;
 418                 }
 419
 420         if (sigkey)
 421                 {
 422                 EVP_MD_CTX *mctx = NULL;
 423                 EVP_PKEY_CTX *pctx = NULL;
 424                 int r;
 425                 if (!BIO_get_md_ctx(bmd, &mctx))
 426                         {
 427                         BIO_printf(bio_err, "Error getting context\n");
 428                         ERR_print_errors(bio_err);
 429                         goto end;
 430                         }
 431                 if (do_verify)
 432                         r = EVP_DigestVerifyInit(mctx, &pctx, md, NULL, sigkey);
 433                 else
 434                         r = EVP_DigestSignInit(mctx, &pctx, md, NULL, sigkey);
 435                 if (!r)
 436                         {
 437                         BIO_printf(bio_err, "Error setting context\n");
 438                         ERR_print_errors(bio_err);
 439                         goto end;
 440                         }
 441                 if (sigopts)
 442                         {
 443                         char *sigopt;
 444                         for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++)
 445                                 {
 446                                 sigopt = sk_OPENSSL_STRING_value(sigopts, i);
 447                                 if (pkey_ctrl_string(pctx, sigopt) <= 0)
 448                                         {
 449                                         BIO_printf(bio_err,
 450                                                 "parameter error \"%s\"\n",
 451                                                 sigopt);
 452                                         ERR_print_errors(bio_err);
 453                                         goto end;
 454                                         }
 455                                 }
 456                         }
 457                 }
 458         /* we use md as a filter, reading from 'in' */
 459         else
 460                 {
 461                 if (md == NULL)
 462                         md = EVP_md5();
 463                 if (!BIO_set_md(bmd,md))
 464                         {
 465                         BIO_printf(bio_err, "Error setting digest %s\n", pname);
 466                         ERR_print_errors(bio_err);
 467                         goto end;
 468                         }
 469                 }
 470
 471         if(sigfile && sigkey) {
 472                 BIO *sigbio;
 473                 sigbio = BIO_new_file(sigfile, "rb");
 474                 siglen = EVP_PKEY_size(sigkey);
 475                 sigbuf = OPENSSL_malloc(siglen);
 476                 if(!sigbio) {
 477                         BIO_printf(bio_err, "Error opening signature file %s\n",
 478                                                                 sigfile);
 479                         ERR_print_errors(bio_err);
 480                         goto end;
 481                 }
 482                 siglen = BIO_read(sigbio, sigbuf, siglen);
 483                 BIO_free(sigbio);
 484                 if(siglen <= 0) {
 485                         BIO_printf(bio_err, "Error reading signature file %s\n",
 486                                                                 sigfile);
 487                         ERR_print_errors(bio_err);
 488                         goto end;
 489                 }
 490         }
 491         inp=BIO_push(bmd,in);
 492
 493         if (md == NULL)
 494                 {
 495                 EVP_MD_CTX *tctx;
 496                 BIO_get_md_ctx(bmd, &tctx);
 497                 md = EVP_MD_CTX_md(tctx);
 498                 }
 499
 500         if (argc == 0)
 501                 {
 502                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
 503                 err=do_fp(out, buf,inp,separator, out_bin, sigkey, sigbuf,
 504                           siglen,NULL,NULL,"stdin",bmd);
 505                 }
 506         else
 507                 {
 508                 const char *md_name = NULL, *sig_name = NULL;
 509                 if(!out_bin)
 510                         {
 511                         if (sigkey)
 512                                 {
 513                                 const EVP_PKEY_ASN1_METHOD *ameth;
 514                                 ameth = EVP_PKEY_get0_asn1(sigkey);
 515                                 if (ameth)
 516                                         EVP_PKEY_asn1_get0_info(NULL, NULL,
 517                                                 NULL, NULL, &sig_name, ameth);
 518                                 }
 519                         md_name = EVP_MD_name(md);
 520                         }
 521                 err = 0;
 522                 for (i=0; i<argc; i++)
 523                         {
 524                         int r;
 525                         if (BIO_read_filename(in,argv[i]) <= 0)
 526                                 {
 527                                 perror(argv[i]);
 528                                 err++;
 529                                 continue;
 530                                 }
 531                         else
 532                         r=do_fp(out,buf,inp,separator,out_bin,sigkey,sigbuf,
 533                                 siglen,sig_name,md_name, argv[i],bmd);
 534                         if(r)
 535                             err=r;
 536                         (void)BIO_reset(bmd);
 537                         }
 538                 }
 539 end:
 540         if (buf != NULL)
 541                 {
 542                 OPENSSL_cleanse(buf,BUFSIZE);
 543                 OPENSSL_free(buf);
 544                 }
 545         if (in != NULL) BIO_free(in);
 546         if (passin)
 547                 OPENSSL_free(passin);
 548         BIO_free_all(out);
 549         EVP_PKEY_free(sigkey);
 550         if (sigopts)
 551                 sk_OPENSSL_STRING_free(sigopts);
 552         if (macopts)
 553                 sk_OPENSSL_STRING_free(macopts);
 554         if(sigbuf) OPENSSL_free(sigbuf);
 555         if (bmd != NULL) BIO_free(bmd);
 556         apps_shutdown();
 557         OPENSSL_EXIT(err);
 558         }
 559
 560 int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout,
 561           EVP_PKEY *key, unsigned char *sigin, int siglen,
 562           const char *sig_name, const char *md_name,
 563           const char *file,BIO *bmd)
 564         {
 565         size_t len;
 566         int i;
 567
 568         for (;;)
 569                 {
 570                 i=BIO_read(bp,(char *)buf,BUFSIZE);
 571                 if(i < 0)
 572                         {
 573                         BIO_printf(bio_err, "Read Error in %s\n",file);
 574                         ERR_print_errors(bio_err);
 575                         return 1;
 576                         }
 577                 if (i == 0) break;
 578                 }
 579         if(sigin)
 580                 {
 581                 EVP_MD_CTX *ctx;
 582                 BIO_get_md_ctx(bp, &ctx);
 583                 i = EVP_DigestVerifyFinal(ctx, sigin, (unsigned int)siglen);
 584                 if(i > 0)
 585                         BIO_printf(out, "Verified OK\n");
 586                 else if(i == 0)
 587                         {
 588                         BIO_printf(out, "Verification Failure\n");
 589                         return 1;
 590                         }
 591                 else
 592                         {
 593                         BIO_printf(bio_err, "Error Verifying Data\n");
 594                         ERR_print_errors(bio_err);
 595                         return 1;
 596                         }
 597                 return 0;
 598                 }
 599         if(key)
 600                 {
 601                 EVP_MD_CTX *ctx;
 602                 BIO_get_md_ctx(bp, &ctx);
 603                 len = BUFSIZE;
 604                 if(!EVP_DigestSignFinal(ctx, buf, &len))
 605                         {
 606                         BIO_printf(bio_err, "Error Signing Data\n");
 607                         ERR_print_errors(bio_err);
 608                         return 1;
 609                         }
 610                 }
 611         else
 612                 {
 613                 len=BIO_gets(bp,(char *)buf,BUFSIZE);
 614                 if ((int)len <0)
 615                         {
 616                         ERR_print_errors(bio_err);
 617                         return 1;
 618                         }
 619                 }
 620
 621         if(binout) BIO_write(out, buf, len);
 622         else if (sep == 2)
 623                 {
 624                 for (i=0; i<(int)len; i++)
 625                         BIO_printf(out, "%02x",buf[i]);
 626                 BIO_printf(out, " *%s\n", file);
 627                 }
 628         else
 629                 {
 630                 if (sig_name)
 631                         BIO_printf(out, "%s-%s(%s)= ", sig_name, md_name, file);
 632                 else if (md_name)
 633                         BIO_printf(out, "%s(%s)= ", md_name, file);
 634                 else
 635                         BIO_printf(out, "(%s)= ", file);
 636                 for (i=0; i<(int)len; i++)
 637                         {
 638                         if (sep && (i != 0))
 639                                 BIO_printf(out, ":");
 640                         BIO_printf(out, "%02x",buf[i]);
 641                         }
 642                 BIO_printf(out, "\n");
 643                 }
 644         return 0;
 645         }
 646