tfcrypt.c

   1 /*
   2  * tfcrypt -- high security Threefish encryption tool.
   3  *
   4  * tfcrypt is copyrighted:
   5  * Copyright (C) 2012-2019 Andrey Rys. All rights reserved.
   6  *
   7  * tfcrypt is licensed to you under the terms of std. MIT/X11 license:
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining
  10  * a copy of this software and associated documentation files (the
  11  * "Software"), to deal in the Software without restriction, including
  12  * without limitation the rights to use, copy, modify, merge, publish,
  13  * distribute, sublicense, and/or sell copies of the Software, and to
  14  * permit persons to whom the Software is furnished to do so, subject to
  15  * the following conditions:
  16  *
  17  * The above copyright notice and this permission notice shall be
  18  * included in all copies or substantial portions of the Software.
  19  *
  20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  23  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  24  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  25  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  26  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27  */
  28
  29 #include "tfcrypt.h"
  30
  31 static tfc_byte svctr[TF_BLOCK_SIZE];
  32 static tfc_fsize rwd, do_read_loops, loopcnt;
  33
  34 static void open_log(const char *logfile)
  35 {
  36         int fd;
  37         tfc_yesno ro;
  38
  39         if (!strcmp(logfile, "-")) return;
  40
  41         ro = read_only;
  42         read_only = NO;
  43         fd = xopen(logfile, O_WRONLY | O_CREAT | O_LARGEFILE | O_TRUNC);
  44         read_only = ro;
  45         xclose(2);
  46         if (dup2(fd, 2) == -1) xexit(2);
  47         xclose(fd);
  48         do_statline_dynamic = NO;
  49 }
  50
  51 static int getps_filter(struct getpasswd_state *getps, char chr, size_t pos)
  52 {
  53         if (chr == '\x03') {
  54                 getps->retn = ((size_t)-2);
  55                 return 6;
  56         }
  57         return 1;
  58 }
  59
  60 static int getps_hex_filter(struct getpasswd_state *getps, char chr, size_t pos)
  61 {
  62         if (chr == '\x03') {
  63                 getps->retn = ((size_t)-2);
  64                 return 6;
  65         }
  66         if (chr >= '0' && chr <= '9') return 1;
  67         if (chr >= 'a' && chr <= 'f') return 1;
  68         if (chr >= 'A' && chr <= 'F') return 1;
  69         if (chr == '\x7f' || chr == '\x08'
  70         || chr == '\x15' || chr == '\x17') return 1;
  71         return 0;
  72 }
  73
  74 static inline int isctrlchr(int c)
  75 {
  76         if (c == 9) return 0;
  77         if (c >= 0 && c <= 31) return 1;
  78         if (c == 127) return 1;
  79         return 0;
  80 }
  81
  82 static int getps_plain_filter(struct getpasswd_state *getps, char chr, size_t pos)
  83 {
  84         int x;
  85
  86         x = getps_filter(getps, chr, pos);
  87         if (x != 1) return x;
  88
  89         if (pos < getps->pwlen && !isctrlchr(chr))
  90                 write(getps->efd, &chr, sizeof(char));
  91         return 1;
  92 }
  93
  94 static int getps_plain_hex_filter(struct getpasswd_state *getps, char chr, size_t pos)
  95 {
  96         int x;
  97
  98         x = getps_hex_filter(getps, chr, pos);
  99         if (x != 1) return x;
 100
 101         if (pos < getps->pwlen && !isctrlchr(chr))
 102                 write(getps->efd, &chr, sizeof(char));
 103         return 1;
 104 }
 105
 106 static void make_hint(void *hint, size_t szhint, const void *data, size_t szdata)
 107 {
 108         char t[TF_FROM_BITS(TF_MAX_BITS)];
 109
 110         skein(t, TF_MAX_BITS, NULL, data, szdata);
 111         xor_shrink(hint, szhint, t, sizeof(t));
 112         memset(t, 0, sizeof(t));
 113 }
 114
 115 static void raw_say_hint(void *hint, size_t szhint, const void *data, size_t szdata, const char *prompt)
 116 {
 117         make_hint(hint, szhint, data, szdata);
 118         if (prompt) tfc_nfsay(stderr, "%s: ", prompt);
 119         mehexdump(hint, szhint, szhint, 1);
 120         memset(hint, 0, szhint);
 121 }
 122
 123 static void say_hint(const void *data, size_t szdata, const char *prompt)
 124 {
 125         char t[TF_SIZE_UNIT];
 126         raw_say_hint(t, TF_SIZE_UNIT, data, szdata, prompt);
 127         /* t[] is erased (automatically) */
 128 }
 129
 130 int main(int argc, char **argv)
 131 {
 132         int c;
 133         double td;
 134         char *s, *d, *t, *stoi;
 135         size_t x, n;
 136
 137         progpid = getpid();
 138         progname = basename(argv[0]);
 139
 140         if (!isatty(2)) do_statline_dynamic = NO;
 141
 142         s = (char *)srcblk;
 143         d = getenv("HOME");
 144         if (!d) d = "";
 145         n = PATH_MAX > sizeof(srcblk) ? sizeof(srcblk) : PATH_MAX;
 146         if (xstrlcpy(s, d, n) >= n) goto _baddfname;
 147         if (xstrlcat(s, "/.tfcrypt.defs", n) >= n) goto _baddfname;
 148         read_defaults(s, YES);
 149 _baddfname:
 150         memset(s, 0, n);
 151
 152         if (!strcmp(progname, "iotool")) {
 153                 do_edcrypt = TFC_DO_PLAIN;
 154                 password = YES;
 155                 ctr_mode = TFC_MODE_PLAIN;
 156         }
 157
 158         opterr = 0;
 159         while ((c = getopt(argc, argv, "L:s:aU:C:r:K:t:Pkzxc:l:qedn:vV:pwE:o:O:S:AmuM:R:Z:WHD:")) != -1) {
 160                 switch (c) {
 161                         case 'L':
 162                                 read_defaults(optarg, NO);
 163                                 break;
 164                         case 's':
 165                                 saltf = optarg;
 166                                 break;
 167                         case 'r':
 168                                 randsource = optarg;
 169                                 break;
 170                         case 'c':
 171                                 if (!strcasecmp(optarg, "show"))
 172                                         counter_opt = TFC_CTR_SHOW;
 173                                 else if (!strcasecmp(optarg, "head"))
 174                                         counter_opt = TFC_CTR_HEAD;
 175                                 else if (!strcasecmp(optarg, "rand"))
 176                                         counter_opt = TFC_CTR_RAND;
 177                                 else if (!strcasecmp(optarg, "zero"))
 178                                         counter_opt = TFC_CTR_ZERO;
 179                                 else if (strchr(optarg, ':')) {
 180                                         char *ss, chr;
 181
 182                                         counter_opt = TFC_CTR_SSET;
 183                                         n = sizeof(ctr);
 184
 185                                         s = d = optarg; t = NULL;
 186                                         while ((s = strtok_r(d, ",", &t))) {
 187                                                 if (d) d = NULL;
 188
 189                                                 if (n == 0) break;
 190                                                 ss = strchr(s, ':');
 191                                                 if (!ss) continue;
 192                                                 *ss = 0; ss++;
 193                                                 chr = (char)strtoul(s, &stoi, 16);
 194                                                 if (!str_empty(stoi)) continue;
 195                                                 x = (size_t)strtoul(ss, &stoi, 10);
 196                                                 if (!str_empty(stoi)) continue;
 197                                                 if (x > n) x = n;
 198                                                 memset(ctr+(sizeof(ctr)-n), (int)chr, x);
 199                                                 n -= x;
 200                                         }
 201                                 }
 202                                 else counter_file = sksum_hashlist_file = optarg;
 203                                 break;
 204                         case 'C':
 205                                 if (!strcasecmp(optarg, "ctr"))
 206                                         ctr_mode = TFC_MODE_CTR;
 207                                 else if (!strcasecmp(optarg, "stream"))
 208                                         ctr_mode = TFC_MODE_STREAM;
 209                                 else if (!strcasecmp(optarg, "cbc"))
 210                                         ctr_mode = TFC_MODE_CBC;
 211                                 else if (!strcasecmp(optarg, "ecb"))
 212                                         ctr_mode = TFC_MODE_ECB;
 213                                 else if (!strcasecmp(optarg, "xts"))
 214                                         ctr_mode = TFC_MODE_XTS;
 215                                 else xerror(NO, YES, YES, "%s: invalid mode of operation", optarg);
 216                                 break;
 217                         case 'P':
 218                                 do_edcrypt = TFC_DO_PLAIN;
 219                                 password = YES;
 220                                 ctr_mode = TFC_MODE_PLAIN;
 221                                 break;
 222                         case 'e':
 223                                 if (do_edcrypt != TFC_DO_PLAIN) do_edcrypt = TFC_DO_ENCRYPT;
 224                                 break;
 225                         case 'd':
 226                                 if (do_edcrypt != TFC_DO_PLAIN) do_edcrypt = TFC_DO_DECRYPT;
 227                                 break;
 228                         case 'D':
 229                                 macbits = strtoul(optarg, &stoi, 10);
 230                                 if (macbits == 0 || !str_empty(stoi) || macbits < 8
 231                                 || macbits > TF_MAX_BITS || macbits % 8)
 232                                         xerror(NO, YES, YES, "%s: invalid MAC bits setting", optarg);
 233                                 break;
 234                         case 'n':
 235                                 nr_turns = sksum_turns = strtoul(optarg, &stoi, 10);
 236                                 if (!str_empty(stoi)) xerror(NO, YES, YES, "%s: invalid number of turns", optarg);
 237                                 break;
 238                         case 'U':
 239                                 if (!strcasecmp(optarg, "key"))
 240                                         mackey_opt = TFC_MACKEY_RAWKEY;
 241                                 else if (!strcasecmp(optarg, "pwd"))
 242                                         mackey_opt = TFC_MACKEY_PASSWORD;
 243                                 else {
 244                                         mackey_opt = TFC_MACKEY_FILE;
 245                                         mackeyf = optarg;
 246                                 }
 247                                 break;
 248                         case 'p':
 249                                 password = YES;
 250                                 break;
 251                         case 'k':
 252                                 rawkey = TFC_RAWKEY_KEYFILE;
 253                                 break;
 254                         case 'z':
 255                                 rawkey = TFC_RAWKEY_ASKSTR;
 256                                 break;
 257                         case 'x':
 258                                 rawkey = TFC_RAWKEY_ASKHEX;
 259                                 break;
 260                         case 'K':
 261                                 verbose = YES;
 262                                 genkeyf = optarg;
 263                                 break;
 264                         case 't':
 265                                 tweakf = optarg;
 266                                 do_full_key = NO;
 267                                 break;
 268                         case 'l':
 269                                 if (maxlen != NOFSIZE) break;
 270
 271                                 maxlen = tfc_humanfsize(optarg, &stoi);
 272                                 if (!str_empty(stoi)) {
 273                                         maxlen = tfc_fnamesize(optarg, YES);
 274                                         maxlen = tfc_modifysize(maxlen, strchr(optarg, ':'));
 275                                         if (maxlen == NOFSIZE) xerror(NO, YES, YES,
 276                                         "%s: invalid count value", optarg);
 277                                 }
 278                                 else maxlen = tfc_modifysize(maxlen, strchr(optarg, ':'));
 279                                 if (counter_opt == TFC_CTR_HEAD)
 280                                         maxlen += TF_BLOCK_SIZE;
 281                                 break;
 282                         case 'w':
 283                                 overwrite_source = YES;
 284                                 break;
 285                         case 'E':
 286                                 if (!strcmp(optarg, "xall")) {
 287                                         catch_all_errors = YES;
 288                                         break;
 289                                 }
 290                                 if (!strcmp(optarg, "xseek")) {
 291                                         ignore_seek_errors = YES;
 292                                         break;
 293                                 }
 294                                 if (!strcmp(optarg, "exit"))
 295                                         error_action = TFC_ERRACT_EXIT;
 296                                 else if (!strncmp(optarg, "cont", 4))
 297                                         error_action = TFC_ERRACT_CONT;
 298                                 else if (!strcmp(optarg, "sync"))
 299                                         error_action = TFC_ERRACT_SYNC;
 300                                 else if (!strcmp(optarg, "lsync"))
 301                                         error_action = TFC_ERRACT_LSYNC;
 302                                 else xerror(NO, YES, YES, "invalid error action %s specified", optarg);
 303                                 break;
 304                         case 'o':
 305                                 open_log(optarg);
 306                                 break;
 307                         case 'O':
 308                                 s = d = optarg; t = NULL;
 309                                 while ((s = strtok_r(d, ",", &t))) {
 310                                         if (d) d = NULL;
 311                                         if (!strcmp(s, "sync"))
 312                                                 write_flags |= O_SYNC;
 313                                         else if (!strcmp(s, "trunc"))
 314                                                 write_flags |= O_TRUNC;
 315                                         else if (!strcmp(s, "append"))
 316                                                 write_flags |= O_APPEND;
 317                                         else if (!strcmp(s, "fsync"))
 318                                                 do_fsync = YES;
 319                                         else if (!strcmp(s, "pad"))
 320                                                 do_pad = YES;
 321                                         else if (!strcmp(s, "ro"))
 322                                                 read_only = YES;
 323                                         else if (!strcmp(s, "rw"))
 324                                                 read_only = NO;
 325                                         else if (!strcmp(s, "xtime"))
 326                                                 do_preserve_time = YES;
 327                                         else if (!strcmp(s, "gibsize"))
 328                                                 do_stats_in_gibs = YES;
 329                                         else if (!strcmp(s, "plainstats"))
 330                                                 do_statline_dynamic = NO;
 331                                         else if (!strcmp(s, "statless"))
 332                                                 do_less_stats = YES;
 333                                         else if (!strcmp(s, "norepeat"))
 334                                                 no_repeat = YES;
 335                                         else if (!strncmp(s, "prompt", 6) && *(s+6) == '=')
 336                                                 pw_prompt = s+7;
 337                                         else if (!strncmp(s, "macprompt", 9) && *(s+9) == '=')
 338                                                 mac_pw_prompt = s+10;
 339                                         else if (!strcmp(s, "shorthex"))
 340                                                 do_full_hexdump = NO;
 341                                         else if (!strcmp(s, "fullkey"))
 342                                                 do_full_key = YES;
 343                                         else if (!strcmp(s, "showsecrets"))
 344                                                 show_secrets = YES;
 345                                         else if (!strcmp(s, "finished"))
 346                                                 show_when_done = YES;
 347                                         else if (!strcmp(s, "pid"))
 348                                                 show_pid = YES;
 349                                         else if (!strncmp(s, "readloops", 9) && *(s+9) == '=') {
 350                                                 do_read_loops = tfc_humanfsize(s+10, &stoi);
 351                                                 if (!str_empty(stoi)) do_read_loops = NOSIZE;
 352                                         }
 353                                         else if (!strncmp(s, "logfile", 7) && *(s+7) == '=')
 354                                                 open_log(s+8);
 355                                         else if (!strncmp(s, "iobs", 4) && *(s+4) == '=') {
 356                                                 s += 5;
 357                                                 blksize = (size_t)tfc_humanfsize(s, &stoi);
 358                                                 if (!str_empty(stoi)) {
 359                                                         blksize = (size_t)tfc_fnamesize(s, YES);
 360                                                         blksize = (size_t)tfc_modifysize((tfc_fsize)blksize, strchr(s, ':'));
 361                                                         if (blksize == NOSIZE) xerror(NO, YES, YES,
 362                                                         "%s: invalid block size value", s);
 363                                                 }
 364                                                 else blksize = (size_t)tfc_modifysize((tfc_fsize)blksize, strchr(s, ':'));
 365                                                 if (do_edcrypt != TFC_DO_PLAIN && blksize < TF_BLOCK_SIZE) xerror(NO, YES, YES,
 366                                                         "%s: block size is lesser than TF_BLOCK_SIZE (%u bytes)", s, TFC_U(TF_BLOCK_SIZE));
 367                                                 if (blksize > TFC_BLKSIZE) xerror(NO, YES, YES,
 368                                                         "%s: block size exceeds %u bytes",
 369                                                         s, TFC_U(TFC_BLKSIZE));
 370                                         }
 371                                         else if (!strncmp(s, "xtsblocks", 9) && *(s+9) == '=') {
 372                                                 s += 10;
 373                                                 xtsblocks = (size_t)tfc_humanfsize(s, &stoi);
 374                                                 if (!str_empty(stoi)) {
 375                                                         xtsblocks = (size_t)tfc_fnamesize(s, YES);
 376                                                         xtsblocks = (size_t)tfc_modifysize((tfc_fsize)xtsblocks, strchr(s, ':'));
 377                                                         if (xtsblocks == NOSIZE) xerror(NO, YES, YES,
 378                                                         "%s: invalid blocks per xts block value", s);
 379                                                 }
 380                                                 else xtsblocks = (size_t)tfc_modifysize((tfc_fsize)xtsblocks, strchr(s, ':'));
 381                                                 if (TFC_BLKSIZE % xtsblocks) xerror(NO, YES, YES,
 382                                                         "%s: nr of blocks per xts block is not round to %u bytes",
 383                                                         s, TFC_U(TFC_BLKSIZE));
 384                                                 if ((xtsblocks * TF_BLOCK_SIZE) > TFC_BLKSIZE) xerror(NO, YES, YES,
 385                                                         "%s: nr of blocks per xts block exceeds %u bytes",
 386                                                         s, TFC_U(TFC_BLKSIZE));
 387                                         }
 388                                         else if (!strncmp(s, "iseek", 5) && *(s+5) == '=') {
 389                                                 s += 6;
 390                                                 iseek = tfc_humanfsize(s, &stoi);
 391                                                 if (!str_empty(stoi)) {
 392                                                         iseek = tfc_fnamesize(s, YES);
 393                                                         iseek = tfc_modifysize(iseek, strchr(s, ':'));
 394                                                         if (iseek == NOFSIZE) xerror(NO, YES, YES,
 395                                                         "%s: invalid iseek value", s);
 396                                                 }
 397                                                 else iseek = tfc_modifysize(iseek, strchr(s, ':'));
 398                                                 if (ctr_mode != TFC_MODE_PLAIN && iseek % TF_BLOCK_SIZE)
 399                                                         xerror(NO, YES, YES,
 400                                                                 "%s: not round to TF block size "
 401                                                                 "of %u bytes",
 402                                                                 s, TFC_U(TF_BLOCK_SIZE));
 403                                                 iseek_blocks = iseek / TF_BLOCK_SIZE;
 404                                         }
 405                                         else if (!strncmp(s, "ixseek", 6) && *(s+6) == '=') {
 406                                                 s += 7;
 407                                                 iseek = tfc_humanfsize(s, &stoi);
 408                                                 if (!str_empty(stoi)) {
 409                                                         iseek = tfc_fnamesize(s, YES);
 410                                                         iseek = tfc_modifysize(iseek, strchr(s, ':'));
 411                                                         if (iseek == NOFSIZE) xerror(NO, YES, YES,
 412                                                                 "%s: invalid ixseek value", s);
 413                                                 }
 414                                                 else iseek = tfc_modifysize(iseek, strchr(s, ':'));
 415                                         }
 416                                         else if (!strncmp(s, "ictr", 4) && *(s+4) == '=') {
 417                                                 s += 5;
 418                                                 iseek_blocks = tfc_humanfsize(s, &stoi);
 419                                                 if (!str_empty(stoi)) {
 420                                                         iseek_blocks = tfc_fnamesize(s, YES);
 421                                                         if (iseek_blocks == NOFSIZE)
 422                                                                 xerror(NO, YES, YES,
 423                                                                 "%s: invalid ictr value", s);
 424                                                         iseek_blocks /= TF_BLOCK_SIZE;
 425                                                         iseek_blocks = tfc_modifysize(iseek_blocks, strchr(s, ':'));
 426                                                 }
 427                                                 else iseek_blocks = tfc_modifysize(iseek_blocks, strchr(s, ':'));
 428                                         }
 429                                         else if (!strncmp(s, "ixctr", 5) && *(s+5) == '=') {
 430                                                 s += 6;
 431                                                 iseek_blocks = tfc_humanfsize(s, &stoi);
 432                                                 if (!str_empty(stoi)) {
 433                                                         iseek_blocks = tfc_fnamesize(s, YES);
 434                                                         iseek_blocks = tfc_modifysize(iseek_blocks, strchr(s, ':'));
 435                                                         if (iseek_blocks == NOFSIZE)
 436                                                                 xerror(NO, YES, YES,
 437                                                                 "%s: invalid ixctr value", s);
 438                                                 }
 439                                                 else iseek_blocks = tfc_modifysize(iseek_blocks, strchr(s, ':'));
 440                                                 if (iseek_blocks % TF_BLOCK_SIZE)
 441                                                         xerror(NO, YES, YES,
 442                                                         "%s: not round to TF block size "
 443                                                         "of %u bytes", s, TFC_U(TF_BLOCK_SIZE));
 444                                                 iseek_blocks /= TF_BLOCK_SIZE;
 445                                         }
 446                                         else if (!strncmp(s, "oseek", 5) && *(s+5) == '=') {
 447                                                 s += 6;
 448                                                 oseek = tfc_humanfsize(s, &stoi);
 449                                                 if (!str_empty(stoi)) {
 450                                                         oseek = tfc_fnamesize(s, YES);
 451                                                         oseek = tfc_modifysize(oseek, strchr(s, ':'));
 452                                                         if (oseek == NOFSIZE) xerror(NO, YES, YES,
 453                                                         "%s: invalid oseek value", s);
 454                                                 }
 455                                                 else oseek = tfc_modifysize(oseek, strchr(s, ':'));
 456                                         }
 457                                         else if (!strncmp(s, "ioseek", 6) && *(s+6) == '=') {
 458                                                 s += 7;
 459
 460                                                 iseek = tfc_humanfsize(s, &stoi);
 461                                                 if (!str_empty(stoi)) {
 462                                                         iseek = tfc_fnamesize(s, YES);
 463                                                         iseek = tfc_modifysize(iseek, strchr(s, ':'));
 464                                                         if (iseek == NOFSIZE) xerror(NO, YES, YES,
 465                                                         "%s: invalid iseek value", s);
 466                                                 }
 467                                                 else iseek = tfc_modifysize(iseek, strchr(s, ':'));
 468                                                 if (ctr_mode != TFC_MODE_PLAIN && iseek % TF_BLOCK_SIZE)
 469                                                         xerror(NO, YES, YES,
 470                                                                 "%s: not round to TF block size "
 471                                                                 "of %u bytes",
 472                                                                 s, TFC_U(TF_BLOCK_SIZE));
 473                                                 iseek_blocks = iseek / TF_BLOCK_SIZE;
 474
 475                                                 oseek = tfc_humanfsize(s, &stoi);
 476                                                 if (!str_empty(stoi)) {
 477                                                         oseek = tfc_fnamesize(s, YES);
 478                                                         oseek = tfc_modifysize(oseek, strchr(s, ':'));
 479                                                         if (oseek == NOFSIZE) xerror(NO, YES, YES,
 480                                                         "%s: invalid oseek value", s);
 481                                                 }
 482                                                 else oseek = tfc_modifysize(oseek, strchr(s, ':'));
 483                                         }
 484                                         else if (!strncmp(s, "count", 5) && *(s+5) == '=') {
 485                                                 s += 6;
 486                                                 maxlen = tfc_humanfsize(s, &stoi);
 487                                                 if (!str_empty(stoi)) {
 488                                                         maxlen = tfc_fnamesize(s, YES);
 489                                                         maxlen = tfc_modifysize(maxlen, strchr(s, ':'));
 490                                                         if (maxlen == NOFSIZE) xerror(NO, YES, YES,
 491                                                         "%s: invalid count value", s);
 492                                                 }
 493                                                 else maxlen = tfc_modifysize(maxlen, strchr(s, ':'));
 494                                                 if (counter_opt == TFC_CTR_HEAD)
 495                                                         maxlen += TF_BLOCK_SIZE;
 496                                         }
 497                                         else if (!strncmp(s, "ftrunc", 6) && *(s+6) == '=') {
 498                                                 s += 7;
 499                                                 if (!strcmp(s, "tail")) {
 500                                                         do_ftrunc = TFC_FTRUNC_TAIL;
 501                                                         ftrunc_dfd = NOFSIZE;
 502                                                 }
 503                                                 else {
 504                                                         do_ftrunc = TFC_DO_FTRUNC;
 505                                                         ftrunc_dfd = tfc_humanfsize(s, &stoi);
 506                                                         if (!str_empty(stoi)) {
 507                                                                 ftrunc_dfd = tfc_fnamesize(s, YES);
 508                                                                 ftrunc_dfd = tfc_modifysize(ftrunc_dfd, strchr(s, ':'));
 509                                                                 if (ftrunc_dfd == NOFSIZE) xerror(NO, YES, YES,
 510                                                                 "%s: invalid ftrunc value", s);
 511                                                         }
 512                                                         else ftrunc_dfd = tfc_modifysize(ftrunc_dfd, strchr(s, ':'));
 513                                                 }
 514                                         }
 515                                         else if (!strncmp(s, "xkey", 4) && *(s+4) == '=') {
 516                                                 s += 5;
 517                                                 maxkeylen = tfc_humanfsize(s, &stoi);
 518                                                 if (!str_empty(stoi)) {
 519                                                         maxkeylen = tfc_fnamesize(s, YES);
 520                                                         maxkeylen = tfc_modifysize(maxkeylen, strchr(s, ':'));
 521                                                         if (maxkeylen == NOSIZE)
 522                                                                 xerror(NO, YES, YES,
 523                                                                 "%s: invalid key length value", s);
 524                                                 }
 525                                                 else maxkeylen = tfc_modifysize(maxkeylen, strchr(s, ':'));
 526                                         }
 527                                         else if (!strncmp(s, "okey", 4) && *(s+4) == '=') {
 528                                                 s += 5;
 529                                                 keyoffset = tfc_humanfsize(s, &stoi);
 530                                                 if (!str_empty(stoi)) {
 531                                                         keyoffset = tfc_fnamesize(s, YES);
 532                                                         keyoffset = tfc_modifysize(keyoffset, strchr(s, ':'));
 533                                                         if (keyoffset == NOFSIZE)
 534                                                                 xerror(NO, YES, YES,
 535                                                                 "%s: invalid key offset value", s);
 536                                                 }
 537                                                 else keyoffset = tfc_modifysize(keyoffset, strchr(s, ':'));
 538                                         }
 539                                         else if (!strncmp(s, "xctr", 4) && *(s+4) == '=') {
 540                                                 s += 5;
 541                                                 ctrsz = tfc_humanfsize(s, &stoi);
 542                                                 if (!str_empty(stoi)) {
 543                                                         ctrsz = (size_t)tfc_fnamesize(s, YES);
 544                                                         ctrsz = (size_t)tfc_modifysize((tfc_fsize)ctrsz, strchr(s, ':'));
 545                                                         if (ctrsz == NOSIZE)
 546                                                                 xerror(NO, YES, YES,
 547                                                                 "%s: invalid counter length value", s);
 548                                                 }
 549                                                 else ctrsz = (size_t)tfc_modifysize((tfc_fsize)ctrsz, strchr(s, ':'));
 550                                                 if (ctrsz > TF_BLOCK_SIZE)
 551                                                         xerror(NO, YES, YES, "%s: counter size cannot exceed TF block size", s);
 552                                         }
 553                                         else xerror(NO, YES, YES, "invalid option %s", s);
 554                                 }
 555                                 break;
 556                         case 'S':
 557                                 do_mac = TFC_MAC_SIGN;
 558                                 if (strcasecmp(optarg, "mac") != 0)
 559                                         do_mac_file = optarg;
 560                                 break;
 561                         case 'M':
 562                                 do_mac = TFC_MAC_VRFY;
 563                                 if (!strcasecmp(optarg, "drop"))
 564                                         do_mac = TFC_MAC_DROP;
 565                                 else if (strcasecmp(optarg, "mac") != 0)
 566                                         do_mac_file = optarg;
 567                                 break;
 568                         case 'm':
 569                         case 'u':
 570                                 if (do_mac != TFC_MAC_VRFY)
 571                                         xerror(NO, YES, YES, "signature source was not specified");
 572                                 do_mac = TFC_MAC_JUST_VRFY;
 573                                 if (c == 'u') do_mac = TFC_MAC_JUST_VRFY2;
 574                                 break;
 575                         case 'R':
 576                         case 'Z':
 577                                 if (maxlen != NOFSIZE) {
 578                                         if (c == 'Z') genzero_nr_bytes = maxlen;
 579                                         else genrandom_nr_bytes = maxlen;
 580                                 }
 581                                 else {
 582                                         tfc_fsize t;
 583                                         if (!strcasecmp(optarg, "cbs"))
 584                                                 t = TF_BLOCK_SIZE;
 585                                         else if (!strcasecmp(optarg, "ks"))
 586                                                 t = TF_FROM_BITS(TFC_KEY_BITS);
 587                                         else if (!strcasecmp(optarg, "xks"))
 588                                                 t = TF_FROM_BITS(TFC_KEY_BITS) * 2;
 589                                         else if (!strcasecmp(optarg, "iobs"))
 590                                                 t = blksize;
 591                                         else {
 592                                                 t = tfc_humanfsize(optarg, &stoi);
 593                                                 if (!str_empty(stoi)) {
 594                                                         t = tfc_fnamesize(optarg, NO);
 595                                                         t = tfc_modifysize(t, strchr(optarg, ':'));
 596                                                 }
 597                                                 else t = tfc_modifysize(t, strchr(optarg, ':'));
 598                                         }
 599                                         if (c == 'Z') genzero_nr_bytes = maxlen = t;
 600                                         else genrandom_nr_bytes = maxlen = t;
 601                                 }
 602                                 break;
 603                         case 'a':
 604                                 do_preserve_time = YES;
 605                                 break;
 606                         case 'A':
 607                                 do_outfmt = TFC_OUTFMT_B64;
 608                                 break;
 609                         case 'W':
 610                                 do_outfmt = TFC_OUTFMT_RAW;
 611                                 break;
 612                         case 'H':
 613                                 do_outfmt = TFC_OUTFMT_HEX;
 614                                 break;
 615                         case 'q':
 616                                 quiet = YES;
 617                                 xexit_no_nl = YES;
 618                                 verbose = NO;
 619                                 do_full_hexdump = NO;
 620                                 status_timer = 0;
 621                                 break;
 622                         case 'v':
 623                                 verbose = YES;
 624                                 break;
 625                         case 'V':
 626                                 td = strtod(optarg, &stoi);
 627                                 status_timer = TFC_DTOUSECS(td);
 628                                 if (status_timer <= TFC_DTOUSECS(0) || !str_empty(stoi)) status_timer = 0;
 629                                 break;
 630                         default:
 631                                 usage();
 632                                 break;
 633                 }
 634         }
 635
 636         if (!strcmp(progname, "tfbench")) {
 637                 if (!*(argv+optind)) usage();
 638
 639                 td = strtod(*(argv+optind), &stoi);
 640                 if (td <= TFC_DTOUSECS(0) || !str_empty(stoi))
 641                         xerror(NO, YES, YES,
 642                         "%s: invalid benchmark time in seconds", *(argv+optind));
 643                 bench_timer = TFC_DTOUSECS(td);
 644                 do_benchmark(bench_timer, td);
 645         }
 646         if (genrandom_nr_bytes) {
 647                 ctr_mode = TFC_MODE_STREAM;
 648                 do_edcrypt = TFC_DO_ENCRYPT;
 649                 gen_write_bytes(*(argv+optind), oseek, genrandom_nr_bytes);
 650         }
 651         if (genzero_nr_bytes) {
 652                 ctr_mode = TFC_MODE_PLAIN;
 653                 do_edcrypt = TFC_DO_PLAIN;
 654                 gen_write_bytes(*(argv+optind), oseek, genzero_nr_bytes);
 655         }
 656
 657         if (rawkey && password)
 658                 xerror(NO, YES, YES, "Cannot use rawkey and hashing password!");
 659         if (do_edcrypt == TFC_DO_ENCRYPT && do_mac >= TFC_MAC_VRFY)
 660                 xerror(NO, YES, YES, "Cannot encrypt and verify signature!");
 661         if (do_edcrypt == TFC_DO_DECRYPT && do_mac == TFC_MAC_SIGN)
 662                 xerror(NO, YES, YES, "Cannot decrypt and calculate signature!");
 663         if (do_edcrypt == TFC_DO_DECRYPT && counter_opt == TFC_CTR_RAND)
 664                 xerror(NO, YES, YES, "Cannot decrypt and embed a generated CTR into file!");
 665         if (do_edcrypt == TFC_DO_ENCRYPT && counter_opt == TFC_CTR_HEAD)
 666                 xerror(NO, YES, YES, "Cannot encrypt and read CTR from source!");
 667         if (overwrite_source && counter_opt == TFC_CTR_RAND)
 668                 xerror(NO, YES, YES, "Cannot embed a CTR into file when overwriting it!");
 669         if (ctr_mode == TFC_MODE_PLAIN
 670         && (do_edcrypt || do_mac || rawkey
 671         || mackey_opt || counter_opt || counter_file))
 672                 xerror(NO, YES, YES, "Encryption facility is disabled when in plain IO mode.");
 673
 674         errno = 0;
 675         do_stop = NO;
 676
 677         if (saltf) {
 678                 int saltfd;
 679
 680                 memset(tfc_salt, 0, TFC_MAX_SALT);
 681                 tfc_saltsz = 0;
 682                 if (!strcasecmp(saltf, "disable")) goto _nosalt;
 683
 684                 if (!strcmp(saltf, "-")) saltfd = 0;
 685                 else saltfd = xopen(saltf, O_RDONLY | O_LARGEFILE);
 686                 lio = xread(saltfd, tfc_salt, TFC_MAX_SALT - TF_FROM_BITS(TFC_KEY_BITS));
 687                 if (lio == NOSIZE) xerror(NO, NO, YES, "%s", saltf);
 688                 tfc_saltsz = lio;
 689                 xclose(saltfd);
 690         }
 691
 692 _nosalt:
 693         if (mackey_opt == TFC_MACKEY_FILE && mackeyf) {
 694                 int mkfd = -1;
 695                 tfc_yesno do_stop;
 696
 697                 if (!strcmp(mackeyf, "-")) mkfd = 0;
 698                 else mkfd = xopen(mackeyf, O_RDONLY | O_LARGEFILE);
 699
 700                 skein_init(&sk, TFC_KEY_BITS);
 701
 702                 do_stop = NO;
 703                 while (1) {
 704                         if (do_stop) break;
 705                         pblk = tmpdata;
 706                         ldone = 0;
 707                         lrem = lblock = sizeof(tmpdata);
 708                         if (error_action == TFC_ERRACT_SYNC) rdpos = tfc_fdgetpos(mkfd);
 709 _mkragain:              lio = xread(mkfd, pblk, lrem);
 710                         if (lio == 0 && do_stop == NO) do_stop = YES;
 711                         if (lio != NOSIZE) ldone += lio;
 712                         else {
 713                                 if (errno != EIO && catch_all_errors != YES)
 714                                         xerror(NO, NO, NO, "%s", mackeyf);
 715                                 switch (error_action) {
 716                                         case TFC_ERRACT_CONT: xerror(YES, NO, NO, "%s", mackeyf); goto _mkragain; break;
 717                                         case TFC_ERRACT_SYNC:
 718                                         case TFC_ERRACT_LSYNC:
 719                                                 xerror(YES, NO, NO, "%s", mackeyf);
 720                                                 lio = ldone = lrem = lblock;
 721                                                 memset(tmpdata, 0, lio);
 722                                                 if (rdpos == NOFSIZE) lseek(mkfd, lio, SEEK_CUR);
 723                                                 else lseek(mkfd, rdpos + lio, SEEK_SET);
 724                                                 break;
 725                                         default: xerror(NO, NO, NO, "%s", mackeyf); break;
 726                                 }
 727                         }
 728                         if (lio && lio < lrem) {
 729                                 pblk += lio;
 730                                 lrem -= lio;
 731                                 goto _mkragain;
 732                         }
 733
 734                         skein_update(&sk, tmpdata, ldone);
 735                 }
 736
 737                 skein_final(mackey, &sk);
 738
 739                 xclose(mkfd);
 740         }
 741         else if (mackey_opt == TFC_MACKEY_PASSWORD) {
 742                 memset(&getps, 0, sizeof(struct getpasswd_state));
 743                 getps.fd = getps.efd = -1;
 744                 getps.passwd = pwdask;
 745                 getps.pwlen = sizeof(pwdask)-1;
 746                 getps.echo = mac_pw_prompt ? mac_pw_prompt : "Enter MAC password: ";
 747                 getps.charfilter = (show_secrets == YES) ? getps_plain_filter : getps_filter;
 748                 getps.maskchar = (show_secrets == YES) ? 0 : 'x';
 749                 getps.flags = GETP_WAITFILL;
 750                 n = xgetpasswd(&getps);
 751                 if (n == NOSIZE) xerror(NO, NO, YES, "getting MAC password");
 752                 if (n == ((size_t)-2)) xexit(1);
 753                 if (verbose) say_hint(pwdask, n, "MAC password hint");
 754                 skein(mackey, TF_MAX_BITS, NULL, pwdask, n);
 755         }
 756
 757
 758         if ((strlen(progname) <= 9)
 759         && ((!strcmp(progname, "sksum"))
 760         || ((!memcmp(progname, "sk", 2))
 761         && (!memcmp(progname+3, "sum", 3)
 762         || !memcmp(progname+4, "sum", 3)
 763         || !memcmp(progname+5, "sum", 3)
 764         || !memcmp(progname+6, "sum", 3)))))
 765                 do_sksum(progname, argv+optind);
 766         if (!strcmp(progname, "tfbase64")) do_edbase64(argv+optind);
 767
 768         idx = optind;
 769
 770         if (argv[idx]) {
 771                 if (password || rawkey > TFC_RAWKEY_KEYFILE) goto _nokeyfd;
 772                 if (!strcmp(argv[idx], "-")) kfd = 0;
 773                 else kfd = xopen(argv[idx], O_RDONLY | O_LARGEFILE);
 774
 775                 lio = strnlen(argv[idx], PATH_MAX);
 776                 memset(argv[idx], '*', lio);
 777
 778                 idx++;
 779         }
 780         else password = YES;
 781
 782         errno = 0;
 783         if (do_full_key == NO && tweakf) {
 784                 int twfd;
 785
 786                 if (!strcmp(tweakf, "-")) twfd = 0;
 787                 else twfd = open(tweakf, O_RDONLY | O_LARGEFILE);
 788                 if (twfd == -1) xerror(NO, NO, YES, "%s", tweakf);
 789                 lio = ldone = xread(twfd, tweak, TF_TWEAK_SIZE);
 790                 if (lio == NOSIZE) xerror(NO, NO, YES, "%s", tweakf);
 791                 if (ldone < TF_TWEAK_SIZE)
 792                         xerror(NO, NO, YES, "%s: %zu bytes tweak required", tweakf, TF_TWEAK_SIZE);
 793                 xclose(twfd);
 794         }
 795
 796 _nokeyfd:
 797         errno = 0;
 798         if (argv[idx]) {
 799                 if (!strcmp(argv[idx], "-") && kfd) sfd = 0;
 800                 else {
 801                         sfd = xopen(argv[idx], O_RDONLY | O_LARGEFILE);
 802                         if (do_preserve_time) if (fstat(sfd, &s_stat) == -1)
 803                                 xerror(YES, NO, YES, "stat(%s)", argv[idx]);
 804                 }
 805
 806                 if ((do_mac >= TFC_MAC_VRFY || do_mac <= TFC_MAC_DROP) && !do_mac_file) {
 807                         maxlen = tfc_fdsize(sfd);
 808                         if (maxlen == NOFSIZE)
 809                                 xerror(NO, YES, YES,
 810                                 "Cannot verify embedded MAC with non-seekable source!");
 811                         maxlen -= TF_FROM_BITS(macbits);
 812                 }
 813                 srcfname = argv[idx];
 814                 idx++;
 815         }
 816
 817         if (!do_mac_file && (do_mac >= TFC_MAC_VRFY && sfd == 0))
 818                 xerror(NO, YES, YES, "Cannot verify embedded MAC with non-seekable source!");
 819
 820         if (ctrsz == NOSIZE) ctrsz = TF_BLOCK_SIZE;
 821         if (ctrsz > TF_BLOCK_SIZE) ctrsz = TF_BLOCK_SIZE;
 822
 823         if (ctr_mode == TFC_MODE_ECB) goto _ctrskip1;
 824         errno = 0;
 825         if (counter_file) {
 826                 int ctrfd;
 827
 828                 if (!strcmp(counter_file, "-")) ctrfd = 0;
 829                 else ctrfd = xopen(counter_file, O_RDONLY | O_LARGEFILE);
 830                 lio = xread(ctrfd, ctr, ctrsz);
 831                 if (lio == NOSIZE) xerror(NO, NO, YES, "%s", counter_file);
 832                 if (lio < ctrsz) xerror(NO, YES, YES, "counter file is too small (%zu)!", lio);
 833                 xclose(ctrfd);
 834         }
 835         else if (counter_opt == TFC_CTR_HEAD) {
 836                 pblk = ctr;
 837                 ldone = 0;
 838                 lrem = lblock = ctrsz;
 839                 if (error_action == TFC_ERRACT_SYNC) rdpos = tfc_fdgetpos(sfd);
 840 _ctrragain:     lio = xread(sfd, pblk, lrem);
 841                 if (lio != NOSIZE) ldone += lio;
 842                 else {
 843                         if (errno != EIO && catch_all_errors != YES)
 844                                 xerror(NO, NO, NO, "%s", srcfname);
 845                         switch (error_action) {
 846                                 case TFC_ERRACT_CONT: xerror(YES, NO, NO, "%s", srcfname); goto _ctrragain; break;
 847                                 case TFC_ERRACT_SYNC:
 848                                 case TFC_ERRACT_LSYNC:
 849                                         xerror(YES, NO, NO, "%s", srcfname);
 850                                         lio = ldone = lrem = lblock;
 851                                         memset(ctr, 0, lio);
 852                                         if (rdpos == NOFSIZE) lseek(sfd, lio, SEEK_CUR);
 853                                         else lseek(sfd, rdpos + lio, SEEK_SET);
 854                                         break;
 855                                 default: xerror(NO, NO, NO, "%s", srcfname); break;
 856                         }
 857                 }
 858                 if (lio && lio < lrem) {
 859                         pblk += lio;
 860                         lrem -= lio;
 861                         goto _ctrragain;
 862                 }
 863                 total_processed_src += ldone;
 864         }
 865
 866 _ctrskip1:
 867         if (iseek) {
 868                 if (counter_opt == TFC_CTR_HEAD && ctr_mode != TFC_MODE_ECB)
 869                         iseek += ctrsz;
 870                 if (lseek(sfd, iseek, SEEK_SET) == -1)
 871                         xerror(ignore_seek_errors, NO, NO, "%s: seek failed", srcfname);
 872         }
 873
 874         if (ctr_mode == TFC_MODE_PLAIN) goto _plain;
 875
 876         if (verbose) tfc_esay("%s: hashing password", tfc_format_pid(progname));
 877
 878         if (rawkey == TFC_RAWKEY_KEYFILE) {
 879                 tfc_yesno xtskeyset = NO;
 880
 881                 pblk = key;
 882 _xts2key:       ldone = 0;
 883                 lrem = lblock = TF_FROM_BITS(TFC_KEY_BITS);
 884                 if (error_action == TFC_ERRACT_SYNC) rdpos = tfc_fdgetpos(kfd);
 885 _keyragain:     lio = xread(kfd, pblk, lrem);
 886                 if (lio != NOSIZE) ldone += lio;
 887                 else {
 888                         if (errno != EIO && catch_all_errors != YES)
 889                                 xerror(NO, NO, NO, "reading key");
 890                         switch (error_action) {
 891                                 case TFC_ERRACT_CONT: xerror(YES, NO, NO, "reading key"); goto _keyragain; break;
 892                                 case TFC_ERRACT_SYNC:
 893                                 case TFC_ERRACT_LSYNC:
 894                                         xerror(YES, NO, NO, "reading key");
 895                                         lio = ldone = lrem = lblock;
 896                                         memset(key, 0, lio);
 897                                         if (rdpos == NOFSIZE) lseek(kfd, lio, SEEK_CUR);
 898                                         else lseek(kfd, rdpos + lio, SEEK_SET);
 899                                         break;
 900                                 default: xerror(NO, NO, NO, "reading key"); break;
 901                         }
 902                 }
 903                 if (lio && lio < lrem) {
 904                         pblk += lio;
 905                         lrem -= lio;
 906                         goto _keyragain;
 907                 }
 908                 if (ldone < lblock) xerror(NO, YES, YES, "rawkey too small! (%zu)", ldone);
 909
 910                 if (ctr_mode == TFC_MODE_XTS) {
 911                         if (xtskeyset == NO) {
 912                                 pblk = xtskey;
 913                                 xtskeyset = YES;
 914                                 goto _xts2key;
 915                         }
 916                 }
 917         }
 918         else if (rawkey == TFC_RAWKEY_ASKSTR) {
 919                 tfc_yesno xtskeyset = NO;
 920
 921                 pblk = key; n = sizeof(key);
 922 _xts2keyaskstr: memset(&getps, 0, sizeof(struct getpasswd_state));
 923                 getps.fd = getps.efd = -1;
 924                 getps.passwd = (char *)pblk;
 925                 getps.pwlen = n;
 926                 getps.echo = pw_prompt ? pw_prompt : "Enter rawkey (str): ";
 927                 getps.charfilter = (show_secrets == YES) ? getps_plain_filter : getps_filter;
 928                 getps.maskchar = (show_secrets == YES) ? 0 : 'x';
 929                 getps.flags = GETP_WAITFILL;
 930                 n = xgetpasswd(&getps);
 931                 if (n == NOSIZE) xerror(NO, NO, YES, "getting string rawkey");
 932                 if (n == ((size_t)-2)) xexit(1);
 933                 if (verbose) say_hint(pblk, n, "Raw string key hint");
 934                 if (ctr_mode == TFC_MODE_XTS) {
 935                         if (xtskeyset == NO) {
 936                                 pblk = xtskey; n = sizeof(xtskey);
 937                                 xtskeyset = YES;
 938                                 goto _xts2keyaskstr;
 939                         }
 940                 }
 941         }
 942         else if (rawkey == TFC_RAWKEY_ASKHEX) {
 943                 tfc_yesno xtskeyset = NO;
 944
 945                 pblk = key;
 946 _rawkey_hex_again:
 947                 memset(&getps, 0, sizeof(struct getpasswd_state));
 948                 getps.fd = getps.efd = -1;
 949                 getps.passwd = pwdask;
 950                 getps.pwlen = (TF_FROM_BITS(TFC_KEY_BITS)*2);
 951                 getps.echo = pw_prompt ? pw_prompt : "Enter rawkey (hex): ";
 952                 getps.charfilter = (show_secrets == YES) ? getps_plain_hex_filter : getps_hex_filter;
 953                 getps.maskchar = (show_secrets == YES) ? 0 : 'x';
 954                 getps.flags = GETP_WAITFILL;
 955                 n = xgetpasswd(&getps);
 956                 if (n == NOSIZE) xerror(NO, NO, YES, "getting hex rawkey");
 957                 if (n == ((size_t)-2)) xexit(1);
 958                 if (n % 2) {
 959                         tfc_esay("Please input even number of hex digits!");
 960                         goto _rawkey_hex_again;
 961                 }
 962                 hex2bin(pblk, pwdask);
 963                 memset(pwdask, 0, sizeof(pwdask));
 964                 if (verbose) say_hint(pblk, n/2, "Raw hex key hint");
 965                 if (ctr_mode == TFC_MODE_XTS) {
 966                         if (xtskeyset == NO) {
 967                                 pblk = xtskey;
 968                                 xtskeyset = YES;
 969                                 goto _rawkey_hex_again;
 970                         }
 971                 }
 972         }
 973         else if (password) {
 974 _pwdagain:      memset(&getps, 0, sizeof(struct getpasswd_state));
 975                 getps.fd = getps.efd = -1;
 976                 getps.passwd = pwdask;
 977                 getps.pwlen = sizeof(pwdask)-1;
 978                 getps.echo = pw_prompt ? pw_prompt : "Enter password: ";
 979                 getps.charfilter = (show_secrets == YES) ? getps_plain_filter : getps_filter;
 980                 getps.maskchar = (show_secrets == YES) ? 0 : 'x';
 981                 getps.flags = GETP_WAITFILL;
 982                 n = xgetpasswd(&getps);
 983                 if (n == NOSIZE) xerror(NO, NO, YES, "getting password");
 984                 if (n == ((size_t)-2)) xexit(1);
 985                 if (do_edcrypt == TFC_DO_ENCRYPT && no_repeat == NO) {
 986                         getps.fd = getps.efd = -1;
 987                         getps.passwd = pwdagain;
 988                         getps.pwlen = sizeof(pwdagain)-1;
 989                         getps.echo = "Enter it again: ";
 990                         getps.flags = GETP_WAITFILL;
 991                         n = xgetpasswd(&getps);
 992                         if (n == NOSIZE) xerror(NO, NO, YES, "getting password again");
 993                         if (n == ((size_t)-2)) xexit(1);
 994                         if (strncmp(pwdask, pwdagain, sizeof(pwdagain)-1) != 0) {
 995                                 tfc_esay("Passwords are different, try again");
 996                                 goto _pwdagain;
 997                         }
 998                 }
 999                 if (verbose) say_hint(pwdask, n, "Password hint");
1000                 skein(key, TFC_KEY_BITS, mackey_opt ? mackey : NULL, pwdask, n);
1001                 memset(pwdask, 0, sizeof(pwdask));
1002                 memset(pwdagain, 0, sizeof(pwdagain));
1003         }
1004         else {
1005                 if (skeinfd(key, TFC_KEY_BITS, mackey_opt ? mackey : NULL, kfd, keyoffset, maxkeylen) != YES)
1006                         xerror(NO, NO, YES, "hashing key");
1007         }
1008
1009         if (rawkey == NO) {
1010                 if (tfc_saltsz > 0) {
1011                         memcpy(tfc_salt+tfc_saltsz, key, TF_FROM_BITS(TFC_KEY_BITS));
1012                         skein(key, TFC_KEY_BITS, mackey_opt ? mackey : NULL, tfc_salt, tfc_saltsz+TF_FROM_BITS(TFC_KEY_BITS));
1013                 }
1014                 if (nr_turns > 1) for (x = 0; x < nr_turns; x++)
1015                         skein(key, TFC_KEY_BITS, mackey_opt ? mackey : NULL, key, TF_FROM_BITS(TFC_KEY_BITS));
1016                 memset(tfc_salt, 0, TFC_MAX_SALT);
1017         }
1018
1019         if (ctr_mode == TFC_MODE_XTS && rawkey == NO) {
1020                 skein(xtskey, TF_NR_KEY_BITS, mackey_opt ? mackey : NULL, key, TF_FROM_BITS(TFC_KEY_BITS));
1021         }
1022
1023         if (genkeyf) {
1024                 int krfd;
1025                 tfc_yesno xtskeyset = NO;
1026
1027                 pblk = key;
1028                 if (!strcmp(genkeyf, "-")) krfd = 1;
1029                 else krfd = xopen(genkeyf, O_WRONLY | O_CREAT | O_LARGEFILE | write_flags);
1030 _xts2genkey:    if (xwrite(krfd, pblk, TF_FROM_BITS(TFC_KEY_BITS)) == NOSIZE) xerror(NO, NO, YES, "%s", genkeyf);
1031                 if (do_fsync && fsync(krfd) == -1) xerror(NO, NO, YES, "%s", genkeyf);
1032                 if (verbose && xtskeyset == NO) {
1033                         tfc_esay("%s: password hashing done", tfc_format_pid(progname));
1034                         tfc_esay("%s: rawkey written to %s.", tfc_format_pid(progname), genkeyf);
1035                         tfc_esay("%s: Have a nice day!", tfc_format_pid(progname));
1036                 }
1037
1038                 if (ctr_mode == TFC_MODE_XTS) {
1039                         if (xtskeyset == NO) {
1040                                 pblk = xtskey;
1041                                 xtskeyset = YES;
1042                                 goto _xts2genkey;
1043                         }
1044                 }
1045
1046                 fchmod(krfd, 0600);
1047                 xclose(krfd);
1048                 xexit(0);
1049         }
1050
1051         if (do_mac != NO) {
1052                 if (mackey_opt == TFC_MACKEY_RAWKEY) skein(mackey, TF_MAX_BITS, key, key, TF_FROM_BITS(TFC_KEY_BITS));
1053                 if (verbose) tfc_esay("%s: doing MAC calculation, processing speed "
1054                         "will be slower.", tfc_format_pid(progname));
1055                 if (mackey_opt) skein_init_key(&sk, mackey, macbits);
1056                 else skein_init(&sk, macbits);
1057         }
1058
1059         if (!counter_file && counter_opt <= TFC_CTR_SHOW && ctr_mode != TFC_MODE_ECB) {
1060                 skein(ctr, TF_TO_BITS(ctrsz), mackey_opt ? mackey : NULL, key, TF_FROM_BITS(TFC_KEY_BITS));
1061         }
1062
1063         tf_convkey(key);
1064         if (ctr_mode == TFC_MODE_XTS) tf_convkey(xtskey);
1065         if (do_full_key == NO) {
1066                 if (!tweakf) skein(tweak, TF_NR_TWEAK_BITS, NULL, key, TF_FROM_BITS(TFC_KEY_BITS));
1067                 tf_tweak_set(key, tweak);
1068         }
1069         if (ctr_mode == TFC_MODE_ECB) goto _ctrskip2;
1070
1071         if (counter_opt == TFC_CTR_ZERO) memset(ctr, 0, ctrsz);
1072
1073         tfc_data_to_words64(&iseek_blocks, sizeof(iseek_blocks));
1074         tf_ctr_set(ctr, &iseek_blocks, sizeof(iseek_blocks));
1075         if (do_mac == TFC_MAC_JUST_VRFY2) memcpy(svctr, ctr, TF_BLOCK_SIZE);
1076
1077         if (counter_opt == TFC_CTR_SHOW) {
1078                 switch (do_outfmt) {
1079                         case TFC_OUTFMT_B64: tfc_printbase64(stderr, ctr, ctrsz, YES); break;
1080                         case TFC_OUTFMT_RAW: xwrite(2, ctr, ctrsz); break;
1081                         case TFC_OUTFMT_HEX: mehexdump(ctr, ctrsz, ctrsz, YES); break;
1082                 }
1083         }
1084         else if (counter_opt == TFC_CTR_RAND) tfc_getrandom(ctr, ctrsz);
1085
1086 _ctrskip2:
1087         if (kfd != -1) {
1088                 xclose(kfd);
1089                 kfd = -1;
1090         }
1091         if (verbose) tfc_esay("%s: password hashing done", tfc_format_pid(progname));
1092
1093         if (overwrite_source && srcfname) argv[idx] = srcfname;
1094
1095 _plain:
1096         if (argv[idx]) {
1097                 if (!strcmp(argv[idx], "-")) dfd = 1;
1098                 else dfd = xxopen(YES, argv[idx], O_RDWR | O_LARGEFILE | write_flags);
1099                 if (dfd == -1) dfd = xopen(argv[idx], O_WRONLY | O_CREAT | O_LARGEFILE | write_flags);
1100                 dstfname = argv[idx];
1101                 idx++;
1102         }
1103
1104         if (oseek) {
1105                 if (lseek(dfd, oseek, SEEK_SET) == -1)
1106                         xerror(ignore_seek_errors, NO, NO, "%s: seek failed", dstfname);
1107         }
1108
1109         for (x = 1; x < NSIG; x++) signal(x, SIG_IGN);
1110         memset(&sigact, 0, sizeof(sigact));
1111         sigact.sa_flags = SA_RESTART;
1112         sigact.sa_handler = print_crypt_status;
1113         sigaction(SIGUSR1, &sigact, NULL);
1114         sigaction(SIGALRM, &sigact, NULL);
1115         if (status_timer) setup_next_alarm(status_timer > 1000000 ? 1000000 : status_timer);
1116         sigact.sa_handler = change_status_width;
1117         sigaction(SIGQUIT, &sigact, NULL);
1118         sigact.sa_handler = change_status_timer;
1119         sigaction(SIGUSR2, &sigact, NULL);
1120         if (quiet == NO) {
1121                 sigact.sa_handler = print_crypt_status;
1122                 sigaction(SIGINT, &sigact, NULL);
1123                 sigaction(SIGTERM, &sigact, NULL);
1124                 sigaction(SIGTSTP, &sigact, NULL);
1125         }
1126         else {
1127                 sigact.sa_handler = exit_sigterm;
1128                 sigaction(SIGINT, &sigact, NULL);
1129                 sigaction(SIGTERM, &sigact, NULL);
1130                 sigact.sa_handler = handle_sigtstp;
1131                 sigaction(SIGTSTP, &sigact, NULL);
1132         }
1133         memset(&sigact, 0, sizeof(struct sigaction));
1134
1135         tfc_getcurtime(&delta_time);
1136
1137         errno = 0;
1138         if (counter_opt == TFC_CTR_RAND && ctr_mode != TFC_MODE_ECB) {
1139                 pblk = ctr;
1140                 lio = lrem = ctrsz;
1141                 ldone = 0;
1142 _ctrwagain:     lio = xwrite(dfd, pblk, lrem);
1143                 if (lio != NOSIZE) ldone += lio;
1144                 else xerror(NO, NO, NO, "%s", dstfname);
1145                 if (do_fsync && fsync(dfd) == -1) xerror(NO, NO, NO, "%s", dstfname);
1146                 if (lio < lrem) {
1147                         pblk += lio;
1148                         lrem -= lio;
1149                         goto _ctrwagain;
1150                 }
1151                 total_written_dst += ldone;
1152                 total_processed_dst += ldone;
1153                 delta_processed += ldone;
1154         }
1155
1156         if (ctr_mode == TFC_MODE_STREAM) tfe_init_iv(&tfe, key, ctr);
1157
1158         if (do_mac == TFC_MAC_JUST_VRFY2) {
1159                 rwd = tfc_fdgetpos(sfd);
1160                 if (rwd == NOFSIZE) {
1161                         tfc_esay("%s: WARNING: input is not seekable, disabling MAC testing mode", tfc_format_pid(progname));
1162                         do_mac = TFC_MAC_VRFY;
1163                 }
1164                 goto _nodecrypt_again_vrfy2;
1165
1166 _decrypt_again_vrfy2:
1167                 if (lseek(sfd, (off_t)rwd, SEEK_SET) == ((off_t)-1)) {
1168                         xerror(ignore_seek_errors, NO, YES, "MAC testing seek failed");
1169                 }
1170                 total_processed_src = rwd;
1171                 memcpy(ctr, svctr, TF_BLOCK_SIZE);
1172                 memset(svctr, 0, TF_BLOCK_SIZE);
1173         }
1174
1175 _nodecrypt_again_vrfy2:
1176         loopcnt = 1;
1177         errno = 0;
1178         do_stop = NO;
1179         while (1) {
1180                 if (do_stop) break;
1181                 pblk = srcblk;
1182                 ldone = 0;
1183                 lrem = lblock = blk_len_adj(maxlen, total_processed_src, blksize);
1184                 if (error_action == TFC_ERRACT_SYNC) rdpos = tfc_fdgetpos(sfd);
1185 _ragain:        lio = xread(sfd, pblk, lrem);
1186                 if (lio == 0) {
1187                         if ((do_read_loops != 0 && sfd != 0) && (loopcnt < do_read_loops)) {
1188                                 lseek(sfd, 0L, SEEK_SET);
1189                                 loopcnt++;
1190                                 goto _ragain;
1191                         }
1192
1193                         do_stop = YES;
1194                 }
1195                 if (lio != NOSIZE) ldone += lio;
1196                 else {
1197                         if (errno != EIO && catch_all_errors != YES)
1198                                 xerror(NO, NO, NO, "%s", srcfname);
1199                         switch (error_action) {
1200                                 case TFC_ERRACT_CONT: xerror(YES, NO, NO, "%s", srcfname); goto _ragain; break;
1201                                 case TFC_ERRACT_SYNC:
1202                                 case TFC_ERRACT_LSYNC:
1203                                         xerror(YES, NO, NO, "%s", srcfname);
1204                                         lio = ldone = lrem = lblock;
1205                                         memset(srcblk, 0, lio);
1206                                         if (rdpos == NOFSIZE) lseek(sfd, lio, SEEK_CUR);
1207                                         else lseek(sfd, rdpos + lio, SEEK_SET);
1208                                         break;
1209                                 default: xerror(NO, NO, NO, "%s", srcfname); break;
1210                         }
1211                 }
1212                 if (lio && lio < lrem) {
1213                         pblk += lio;
1214                         lrem -= lio;
1215                         goto _ragain;
1216                 }
1217                 total_processed_src += ldone;
1218
1219                 if (do_pad && (ldone % TF_BLOCK_SIZE)) {
1220                         size_t orig = ldone;
1221                         ldone += (TF_BLOCK_SIZE - (ldone % TF_BLOCK_SIZE));
1222                         if (ldone > blksize) ldone = blksize;
1223                         memset(srcblk+orig, 0, sizeof(srcblk)-orig);
1224                 }
1225
1226                 if (do_mac == TFC_MAC_SIGN) skein_update(&sk, srcblk, ldone);
1227
1228                 if (ctr_mode == TFC_MODE_CTR) tf_ctr_crypt(key, ctr, dstblk, srcblk, ldone);
1229                 else if (ctr_mode == TFC_MODE_STREAM) tf_stream_crypt(&tfe, dstblk, srcblk, ldone);
1230                 else if (ctr_mode == TFC_MODE_XTS && do_edcrypt == TFC_DO_ENCRYPT)
1231                         tf_xts_encrypt(key, xtskey, ctr, dstblk, srcblk, ldone, xtsblocks);
1232                 else if (ctr_mode == TFC_MODE_XTS && do_edcrypt == TFC_DO_DECRYPT)
1233                         tf_xts_decrypt(key, xtskey, ctr, dstblk, srcblk, ldone, xtsblocks);
1234                 else if (ctr_mode == TFC_MODE_ECB && do_edcrypt == TFC_DO_ENCRYPT)
1235                         tf_ecb_encrypt(key, dstblk, srcblk, ldone);
1236                 else if (ctr_mode == TFC_MODE_ECB && do_edcrypt == TFC_DO_DECRYPT)
1237                         tf_ecb_decrypt(key, dstblk, srcblk, ldone);
1238                 else if (ctr_mode == TFC_MODE_CBC && do_edcrypt == TFC_DO_ENCRYPT)
1239                         tf_cbc_encrypt(key, ctr, dstblk, srcblk, ldone);
1240                 else if (ctr_mode == TFC_MODE_CBC && do_edcrypt == TFC_DO_DECRYPT)
1241                         tf_cbc_decrypt(key, ctr, dstblk, srcblk, ldone);
1242
1243                 else if (ctr_mode == TFC_MODE_PLAIN)
1244                         memcpy(dstblk, srcblk, ldone);
1245
1246                 if (do_mac >= TFC_MAC_VRFY) skein_update(&sk, dstblk, ldone);
1247                 if (do_mac >= TFC_MAC_JUST_VRFY) goto _nowrite;
1248
1249                 pblk = dstblk;
1250                 lrem = ldone;
1251                 ldone = 0;
1252 _wagain:        lio = xwrite(dfd, pblk, lrem);
1253                 if (lio != NOSIZE) ldone += lio;
1254                 else xerror(NO, NO, NO, "%s", dstfname);
1255                 if (do_fsync && fsync(dfd) == -1) xerror(NO, NO, NO, "%s", dstfname);
1256                 if (lio < lrem) {
1257                         pblk += lio;
1258                         lrem -= lio;
1259                         goto _wagain;
1260                 }
1261                 total_written_dst += ldone;
1262 _nowrite:       total_processed_dst += ldone;
1263                 delta_processed += ldone;
1264
1265                 if (maxlen != NOFSIZE && total_processed_src >= maxlen) {
1266                         do_stop = YES;
1267                         break;
1268                 }
1269         }
1270
1271         if (verbose && status_timer && do_statline_dynamic == YES && statline_was_shown == YES) tfc_esay("\n");
1272
1273         errno = 0;
1274         if (do_mac >= TFC_MAC_VRFY) {
1275                 if (!do_mac_file) {
1276                         pblk = macvrfy;
1277                         ldone = 0;
1278                         lrem = lblock = TF_FROM_BITS(macbits);
1279                         if (error_action == TFC_ERRACT_SYNC) rdpos = tfc_fdgetpos(sfd);
1280 _macragain:             lio = xread(sfd, pblk, lrem);
1281                         if (lio != NOSIZE) ldone += lio;
1282                         else {
1283                                 if (errno != EIO && catch_all_errors != YES)
1284                                         xerror(NO, NO, NO, "%s", srcfname);
1285                                 switch (error_action) {
1286                                         case TFC_ERRACT_CONT: xerror(YES, NO, NO, "%s", srcfname); goto _macragain; break;
1287                                         case TFC_ERRACT_SYNC:
1288                                         case TFC_ERRACT_LSYNC:
1289                                                 xerror(YES, NO, NO, "%s", srcfname);
1290                                                 lio = ldone = lrem = lblock;
1291                                                 memset(macvrfy, 0, lio);
1292                                                 if (rdpos == NOFSIZE) lseek(sfd, lio, SEEK_CUR);
1293                                                 else lseek(sfd, rdpos + lio, SEEK_SET);
1294                                                 break;
1295                                         default: xerror(NO, NO, NO, "%s", srcfname); break;
1296                                 }
1297                         }
1298                         if (lio && lio < lrem) {
1299                                 pblk += lio;
1300                                 lrem -= lio;
1301                                 goto _macragain;
1302                         }
1303                         total_processed_src += ldone;
1304                 }
1305                 else {
1306                         int mfd;
1307
1308                         if (!strcmp(do_mac_file, "-")) mfd = 0;
1309                         else mfd = xopen(do_mac_file, O_RDONLY | O_LARGEFILE);
1310                         lio = ldone = xread(mfd, tmpdata, sizeof(tmpdata));
1311                         if (lio == NOSIZE) xerror(NO, NO, YES, "%s", do_mac_file);
1312                         if (!memcmp(tmpdata, TFC_ASCII_TFC_MAC_FOURCC, TFC_ASCII_TFC_MAC_FOURCC_LEN)) {
1313                                 memmove(tmpdata, tmpdata+TFC_ASCII_TFC_MAC_FOURCC_LEN,
1314                                         sizeof(tmpdata)-TFC_ASCII_TFC_MAC_FOURCC_LEN);
1315                                 lio = TF_FROM_BITS(macbits);
1316                                 base64_decode((char *)macvrfy, lio, (char *)tmpdata, sizeof(tmpdata));
1317                         }
1318                         else memcpy(macvrfy, tmpdata, TF_FROM_BITS(macbits));
1319                         xclose(mfd);
1320                 }
1321
1322                 if (ldone < TF_FROM_BITS(macbits)) {
1323                         if (quiet == NO) tfc_esay("%s: short signature (%zu), "
1324                                 "not verifying", tfc_format_pid(progname), ldone);
1325                         exitcode = 1;
1326                         goto _shortmac;
1327                 }
1328
1329                 skein_final(macresult, &sk);
1330
1331                 if (ctr_mode == TFC_MODE_CTR) tf_ctr_crypt(key, ctr, tmpdata, macvrfy, TF_FROM_BITS(macbits));
1332                 else if (ctr_mode == TFC_MODE_STREAM) tf_stream_crypt(&tfe, tmpdata, macvrfy, TF_FROM_BITS(macbits));
1333                 else if (ctr_mode == TFC_MODE_XTS) tf_xts_decrypt(key, xtskey, ctr, tmpdata, macvrfy, TF_FROM_BITS(macbits), xtsblocks);
1334                 else if (ctr_mode == TFC_MODE_ECB) tf_ecb_decrypt(key, tmpdata, macvrfy, TF_FROM_BITS(macbits));
1335                 else if (ctr_mode == TFC_MODE_CBC) tf_cbc_decrypt(key, ctr, tmpdata, macvrfy, TF_FROM_BITS(macbits));
1336
1337                 if (!memcmp(tmpdata, macresult, TF_FROM_BITS(macbits))) {
1338                         if (quiet == NO) {
1339                                 tfc_esay("%s: signature is good", tfc_format_pid(progname));
1340                                 if (verbose) {
1341                                         if (do_outfmt == TFC_OUTFMT_B64) tfc_printbase64(stderr, macresult, TF_FROM_BITS(macbits), YES);
1342                                         else mehexdump(macresult, TF_FROM_BITS(macbits), TF_FROM_BITS(macbits), YES);
1343                                 }
1344                         }
1345                         if (do_mac == TFC_MAC_JUST_VRFY2) {
1346                                 if (verbose) tfc_esay("%s: -u: MAC signature is valid, proceeding with decrypting it again", tfc_format_pid(progname));
1347                                 maxlen = total_processed_src - SKEIN_DIGEST_SIZE;
1348                                 do_mac = TFC_MAC_DROP2;
1349                                 goto _decrypt_again_vrfy2;
1350                         }
1351                 }
1352                 else {
1353                         if (quiet == NO) {
1354                                 tfc_esay("%s: signature is BAD: "
1355                                 "wrong password, key, mode, or file is not signed", tfc_format_pid(progname));
1356                                 if (do_mac == TFC_MAC_JUST_VRFY2) tfc_esay("%s: -u: MAC signature is invalid, not decrypting it again", tfc_format_pid(progname));
1357                         }
1358                         exitcode = 1;
1359                 }
1360
1361 _shortmac:      memset(macvrfy, 0, sizeof(macvrfy));
1362                 memset(macresult, 0, sizeof(macresult));
1363                 memset(tmpdata, 0, sizeof(tmpdata));
1364         }
1365         else if (do_mac == TFC_MAC_SIGN) {
1366                 skein_final(macresult, &sk);
1367
1368                 if (ctr_mode == TFC_MODE_CTR) tf_ctr_crypt(key, ctr, tmpdata, macresult, TF_FROM_BITS(macbits));
1369                 else if (ctr_mode == TFC_MODE_STREAM) tf_stream_crypt(&tfe, tmpdata, macresult, TF_FROM_BITS(macbits));
1370                 else if (ctr_mode == TFC_MODE_XTS) tf_xts_encrypt(key, xtskey, ctr, tmpdata, macresult, TF_FROM_BITS(macbits), xtsblocks);
1371                 else if (ctr_mode == TFC_MODE_ECB) tf_ecb_encrypt(key, tmpdata, macresult, TF_FROM_BITS(macbits));
1372                 else if (ctr_mode == TFC_MODE_CBC) tf_cbc_encrypt(key, ctr, tmpdata, macresult, TF_FROM_BITS(macbits));
1373                 memset(macresult, 0, sizeof(macresult));
1374
1375                 if (!do_mac_file) {
1376                         pblk = tmpdata;
1377                         lio = lrem = TF_FROM_BITS(macbits);
1378                         ldone = 0;
1379 _macwagain:             lio = xwrite(dfd, pblk, lrem);
1380                         if (lio != NOSIZE) ldone += lio;
1381                         else xerror(NO, NO, NO, "%s", dstfname);
1382                         if (do_fsync && fsync(dfd) == -1) xerror(NO, NO, NO, "%s", dstfname);
1383                         if (lio < lrem) {
1384                                 pblk += lio;
1385                                 lrem -= lio;
1386                                 goto _macwagain;
1387                         }
1388                         total_written_dst += ldone;
1389                         total_processed_dst += ldone;
1390                         delta_processed += ldone;
1391                 }
1392                 else {
1393                         int mfd;
1394
1395                         if (!strcmp(do_mac_file, "-")) mfd = 1;
1396                         else mfd = xopen(do_mac_file, O_WRONLY | O_CREAT | O_LARGEFILE | write_flags);
1397                         if (do_outfmt == TFC_OUTFMT_B64) {
1398                                 memcpy(macvrfy, tmpdata, TF_FROM_BITS(macbits));
1399                                 memset(tmpdata, 0, TFC_TMPSIZE);
1400                                 memcpy(tmpdata, TFC_ASCII_TFC_MAC_FOURCC, TFC_ASCII_TFC_MAC_FOURCC_LEN);
1401                                 base64_encode((char *)tmpdata+TFC_ASCII_TFC_MAC_FOURCC_LEN, (char *)macvrfy, TF_FROM_BITS(macbits));
1402                                 lrem = strnlen((char *)tmpdata, sizeof(tmpdata));
1403                                 if (lrem) {
1404                                         tmpdata[lrem] = '\n';
1405                                         lrem++;
1406                                 }
1407                                 lio = xwrite(mfd, tmpdata, lrem);
1408                         }
1409                         else lio = xwrite(mfd, tmpdata, TF_FROM_BITS(macbits));
1410                         if (lio == NOSIZE) xerror(NO, NO, YES, "%s", do_mac_file);
1411                         if (do_fsync && fsync(mfd) == -1) xerror(NO, NO, YES, "%s", do_mac_file);
1412                         xclose(mfd);
1413                 }
1414
1415                 memset(macvrfy, 0, sizeof(macvrfy));
1416                 memset(macresult, 0, sizeof(macresult));
1417                 memset(tmpdata, 0, sizeof(tmpdata));
1418         }
1419         else if (do_mac == TFC_MAC_DROP2) total_processed_src += SKEIN_DIGEST_SIZE;
1420
1421         if (verbose || status_timer || (do_stop == YES && quiet == NO)) print_crypt_status(0);
1422
1423         xexit(exitcode);
1424         return -1;
1425 }