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 static tfc_yesno unbuffered;
  34
  35 static void open_log(const char *logfile)
  36 {
  37         int fd;
  38         tfc_yesno ro;
  39
  40         if (!strcmp(logfile, "-")) return;
  41
  42         ro = read_only;
  43         read_only = NO;
  44         fd = xopen(logfile, O_WRONLY | O_CREAT | O_LARGEFILE | O_TRUNC);
  45         read_only = ro;
  46         xclose(2);
  47         if (dup2(fd, 2) == -1) xexit(2);
  48         xclose(fd);
  49         do_statline_dynamic = NO;
  50 }
  51
  52 static int getps_filter(struct getpasswd_state *getps, char chr, size_t pos)
  53 {
  54         if (chr == '\x03') {
  55                 getps->retn = ((size_t)-2);
  56                 return 6;
  57         }
  58         return 1;
  59 }
  60
  61 static int getps_hex_filter(struct getpasswd_state *getps, char chr, size_t pos)
  62 {
  63         if (chr == '\x03') {
  64                 getps->retn = ((size_t)-2);
  65                 return 6;
  66         }
  67         if (chr >= '0' && chr <= '9') return 1;
  68         if (chr >= 'a' && chr <= 'f') return 1;
  69         if (chr >= 'A' && chr <= 'F') return 1;
  70         if (chr == '\x7f' || chr == '\x08'
  71         || chr == '\x15' || chr == '\x17') return 1;
  72         return 0;
  73 }
  74
  75 static inline int isctrlchr(int c)
  76 {
  77         if (c == 9) return 0;
  78         if (c >= 0 && c <= 31) return 1;
  79         if (c == 127) return 1;
  80         return 0;
  81 }
  82
  83 static int getps_plain_filter(struct getpasswd_state *getps, char chr, size_t pos)
  84 {
  85         int x;
  86
  87         x = getps_filter(getps, chr, pos);
  88         if (x != 1) return x;
  89
  90         if (pos < getps->pwlen && !isctrlchr(chr))
  91                 write(getps->efd, &chr, sizeof(char));
  92         return 1;
  93 }
  94
  95 static int getps_plain_hex_filter(struct getpasswd_state *getps, char chr, size_t pos)
  96 {
  97         int x;
  98
  99         x = getps_hex_filter(getps, chr, pos);
 100         if (x != 1) return x;
 101
 102         if (pos < getps->pwlen && !isctrlchr(chr))
 103                 write(getps->efd, &chr, sizeof(char));
 104         return 1;
 105 }
 106
 107 static void make_hint(void *hint, size_t szhint, const void *data, size_t szdata)
 108 {
 109         char t[TF_FROM_BITS(TF_MAX_BITS)];
 110
 111         skein(t, TF_MAX_BITS, NULL, data, szdata);
 112         xor_shrink(hint, szhint, t, sizeof(t));
 113         memset(t, 0, sizeof(t));
 114 }
 115
 116 static void raw_say_hint(void *hint, size_t szhint, const void *data, size_t szdata, const char *prompt)
 117 {
 118         make_hint(hint, szhint, data, szdata);
 119         if (prompt) tfc_nfsay(stderr, "%s: ", prompt);
 120         mehexdump(hint, szhint, szhint, 1);
 121         memset(hint, 0, szhint);
 122 }
 123
 124 static void say_hint(const void *data, size_t szdata, const char *prompt)
 125 {
 126         char t[TF_SIZE_UNIT];
 127         raw_say_hint(t, TF_SIZE_UNIT, data, szdata, prompt);
 128         /* t[] is erased (automatically) */
 129 }
 130
 131 int main(int argc, char **argv)
 132 {
 133         int c;
 134         double td;
 135         char *s, *d, *t, *stoi;
 136         size_t x, n;
 137
 138         progpid = getpid();
 139         progname = basename(argv[0]);
 140
 141         if (!isatty(2)) do_statline_dynamic = NO;
 142
 143         s = (char *)srcblk;
 144         d = getenv("HOME");
 145         if (!d) d = "";
 146         n = PATH_MAX > sizeof(srcblk) ? sizeof(srcblk) : PATH_MAX;
 147         if (xstrlcpy(s, d, n) >= n) goto _baddfname;
 148         if (xstrlcat(s, "/.tfcrypt.defs", n) >= n) goto _baddfname;
 149         read_defaults(s, YES);
 150 _baddfname:
 151         memset(s, 0, n);
 152
 153         if (!strcmp(progname, "iotool")) {
 154                 do_edcrypt = TFC_DO_PLAIN;
 155                 password = YES;
 156                 ctr_mode = TFC_MODE_PLAIN;
 157         }
 158
 159         opterr = 0;
 160         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) {
 161                 switch (c) {
 162                         case 'L':
 163                                 read_defaults(optarg, NO);
 164                                 break;
 165                         case 's':
 166                                 saltf = optarg;
 167                                 break;
 168                         case 'r':
 169                                 randsource = optarg;
 170                                 break;
 171                         case 'c':
 172                                 if (!strcasecmp(optarg, "show"))
 173                                         counter_opt = TFC_CTR_SHOW;
 174                                 else if (!strcasecmp(optarg, "head"))
 175                                         counter_opt = TFC_CTR_HEAD;
 176                                 else if (!strcasecmp(optarg, "rand"))
 177                                         counter_opt = TFC_CTR_RAND;
 178                                 else if (!strcasecmp(optarg, "zero"))
 179                                         counter_opt = TFC_CTR_ZERO;
 180                                 else if (strchr(optarg, ':')) {
 181                                         char *ss, chr;
 182
 183                                         counter_opt = TFC_CTR_SSET;
 184                                         n = sizeof(ctr);
 185
 186                                         s = d = optarg; t = NULL;
 187                                         while ((s = strtok_r(d, ",", &t))) {
 188                                                 if (d) d = NULL;
 189
 190                                                 if (n == 0) break;
 191                                                 ss = strchr(s, ':');
 192                                                 if (!ss) continue;
 193                                                 *ss = 0; ss++;
 194                                                 chr = (char)strtoul(s, &stoi, 16);
 195                                                 if (!str_empty(stoi)) continue;
 196                                                 x = (size_t)strtoul(ss, &stoi, 10);
 197                                                 if (!str_empty(stoi)) continue;
 198                                                 if (x > n) x = n;
 199                                                 memset(ctr+(sizeof(ctr)-n), (int)chr, x);
 200                                                 n -= x;
 201                                         }
 202                                 }
 203                                 else counter_file = sksum_hashlist_file = optarg;
 204                                 break;
 205                         case 'C':
 206                                 if (!strcasecmp(optarg, "ctr"))
 207                                         ctr_mode = TFC_MODE_CTR;
 208                                 else if (!strcasecmp(optarg, "stream"))
 209                                         ctr_mode = TFC_MODE_STREAM;
 210                                 else if (!strcasecmp(optarg, "cbc"))
 211                                         ctr_mode = TFC_MODE_CBC;
 212                                 else if (!strcasecmp(optarg, "ecb"))
 213                                         ctr_mode = TFC_MODE_ECB;
 214                                 else if (!strcasecmp(optarg, "xts"))
 215                                         ctr_mode = TFC_MODE_XTS;
 216                                 else xerror(NO, YES, YES, "%s: invalid mode of operation", optarg);
 217                                 break;
 218                         case 'P':
 219                                 do_edcrypt = TFC_DO_PLAIN;
 220                                 password = YES;
 221                                 ctr_mode = TFC_MODE_PLAIN;
 222                                 break;
 223                         case 'e':
 224                                 if (do_edcrypt != TFC_DO_PLAIN) do_edcrypt = TFC_DO_ENCRYPT;
 225                                 break;
 226                         case 'd':
 227                                 if (do_edcrypt != TFC_DO_PLAIN) do_edcrypt = TFC_DO_DECRYPT;
 228                                 break;
 229                         case 'D':
 230                                 macbits = strtoul(optarg, &stoi, 10);
 231                                 if (macbits == 0 || !str_empty(stoi) || macbits < 8
 232                                 || macbits > TF_MAX_BITS || macbits % 8)
 233                                         xerror(NO, YES, YES, "%s: invalid MAC bits setting", optarg);
 234                                 break;
 235                         case 'n':
 236                                 nr_turns = sksum_turns = strtoul(optarg, &stoi, 10);
 237                                 if (!str_empty(stoi)) xerror(NO, YES, YES, "%s: invalid number of turns", optarg);
 238                                 break;
 239                         case 'U':
 240                                 if (!strcasecmp(optarg, "key"))
 241                                         mackey_opt = TFC_MACKEY_RAWKEY;
 242                                 else if (!strcasecmp(optarg, "pwd"))
 243                                         mackey_opt = TFC_MACKEY_PASSWORD;
 244                                 else {
 245                                         mackey_opt = TFC_MACKEY_FILE;
 246                                         mackeyf = optarg;
 247                                 }
 248                                 break;
 249                         case 'p':
 250                                 password = YES;
 251                                 break;
 252                         case 'k':
 253                                 rawkey = TFC_RAWKEY_KEYFILE;
 254                                 break;
 255                         case 'z':
 256                                 rawkey = TFC_RAWKEY_ASKSTR;
 257                                 break;
 258                         case 'x':
 259                                 rawkey = TFC_RAWKEY_ASKHEX;
 260                                 break;
 261                         case 'K':
 262                                 verbose = YES;
 263                                 genkeyf = optarg;
 264                                 break;
 265                         case 't':
 266                                 tweakf = optarg;
 267                                 do_full_key = NO;
 268                                 break;
 269                         case 'l':
 270                                 if (maxlen != NOFSIZE) break;
 271
 272                                 maxlen = tfc_humanfsize(optarg, &stoi);
 273                                 if (!str_empty(stoi)) {
 274                                         maxlen = tfc_fnamesize(optarg, YES);
 275                                         maxlen = tfc_modifysize(maxlen, strchr(optarg, ':'));
 276                                         if (maxlen == NOFSIZE) xerror(NO, YES, YES,
 277                                         "%s: invalid count value", optarg);
 278                                 }
 279                                 else maxlen = tfc_modifysize(maxlen, strchr(optarg, ':'));
 280                                 if (counter_opt == TFC_CTR_HEAD)
 281                                         maxlen += TF_BLOCK_SIZE;
 282                                 break;
 283                         case 'w':
 284                                 overwrite_source = YES;
 285                                 break;
 286                         case 'E':
 287                                 if (!strcmp(optarg, "xall")) {
 288                                         catch_all_errors = YES;
 289                                         break;
 290                                 }
 291                                 if (!strcmp(optarg, "xseek")) {
 292                                         ignore_seek_errors = YES;
 293                                         break;
 294                                 }
 295                                 if (!strcmp(optarg, "exit"))
 296                                         error_action = TFC_ERRACT_EXIT;
 297                                 else if (!strncmp(optarg, "cont", 4))
 298                                         error_action = TFC_ERRACT_CONT;
 299                                 else if (!strcmp(optarg, "sync"))
 300                                         error_action = TFC_ERRACT_SYNC;
 301                                 else if (!strcmp(optarg, "lsync"))
 302                                         error_action = TFC_ERRACT_LSYNC;
 303                                 else xerror(NO, YES, YES, "invalid error action %s specified", optarg);
 304                                 break;
 305                         case 'o':
 306                                 open_log(optarg);
 307                                 break;
 308                         case 'O':
 309                                 s = d = optarg; t = NULL;
 310                                 while ((s = strtok_r(d, ",", &t))) {
 311                                         if (d) d = NULL;
 312                                         if (!strcmp(s, "sync"))
 313                                                 write_flags |= O_SYNC;
 314                                         else if (!strcmp(s, "trunc"))
 315                                                 write_flags |= O_TRUNC;
 316                                         else if (!strcmp(s, "append"))
 317                                                 write_flags |= O_APPEND;
 318                                         else if (!strcmp(s, "fsync"))
 319                                                 do_fsync = YES;
 320                                         else if (!strcmp(s, "pad"))
 321                                                 do_pad = YES;
 322                                         else if (!strcmp(s, "ro"))
 323                                                 read_only = YES;
 324                                         else if (!strcmp(s, "rw"))
 325                                                 read_only = NO;
 326                                         else if (!strcmp(s, "xtime"))
 327                                                 do_preserve_time = YES;
 328                                         else if (!strcmp(s, "gibsize"))
 329                                                 do_stats_in_gibs = YES;
 330                                         else if (!strcmp(s, "plainstats"))
 331                                                 do_statline_dynamic = NO;
 332                                         else if (!strcmp(s, "statless"))
 333                                                 do_less_stats = YES;
 334                                         else if (!strcmp(s, "norepeat"))
 335                                                 no_repeat = YES;
 336                                         else if (!strncmp(s, "prompt", 6) && *(s+6) == '=')
 337                                                 pw_prompt = s+7;
 338                                         else if (!strncmp(s, "macprompt", 9) && *(s+9) == '=')
 339                                                 mac_pw_prompt = s+10;
 340                                         else if (!strcmp(s, "shorthex"))
 341                                                 do_full_hexdump = NO;
 342                                         else if (!strcmp(s, "fullkey"))
 343                                                 do_full_key = YES;
 344                                         else if (!strcmp(s, "showsecrets"))
 345                                                 show_secrets = YES;
 346                                         else if (!strcmp(s, "finished"))
 347                                                 show_when_done = YES;
 348                                         else if (!strcmp(s, "pid"))
 349                                                 show_pid = YES;
 350                                         else if (!strcmp(s, "nobuf")) {
 351                                                 if (!tfc_is_freestream(ctr_mode)) xerror(NO, YES, YES,
 352                                                         "cannot activate unbuffered mode for non-stream cipher mode %s!",
 353                                                         tfc_modename(ctr_mode));
 354                                                 else unbuffered = YES;
 355                                         }
 356                                         else if (!strncmp(s, "readloops", 9) && *(s+9) == '=') {
 357                                                 do_read_loops = tfc_humanfsize(s+10, &stoi);
 358                                                 if (!str_empty(stoi)) do_read_loops = NOSIZE;
 359                                         }
 360                                         else if (!strncmp(s, "logfile", 7) && *(s+7) == '=')
 361                                                 open_log(s+8);
 362                                         else if (!strncmp(s, "iobs", 4) && *(s+4) == '=') {
 363                                                 s += 5;
 364                                                 blksize = (size_t)tfc_humanfsize(s, &stoi);
 365                                                 if (!str_empty(stoi)) {
 366                                                         blksize = (size_t)tfc_fnamesize(s, YES);
 367                                                         blksize = (size_t)tfc_modifysize((tfc_fsize)blksize, strchr(s, ':'));
 368                                                         if (blksize == NOSIZE) xerror(NO, YES, YES,
 369                                                         "%s: invalid block size value", s);
 370                                                 }
 371                                                 else blksize = (size_t)tfc_modifysize((tfc_fsize)blksize, strchr(s, ':'));
 372                                                 if (!tfc_is_freestream(ctr_mode) && blksize < TF_BLOCK_SIZE) xerror(NO, YES, YES,
 373                                                         "%s: block size is lesser than TF_BLOCK_SIZE (%u bytes)", s, TFC_U(TF_BLOCK_SIZE));
 374                                                 if (blksize > TFC_BLKSIZE) xerror(NO, YES, YES,
 375                                                         "%s: block size exceeds %u bytes",
 376                                                         s, TFC_U(TFC_BLKSIZE));
 377                                         }
 378                                         else if (!strncmp(s, "xtsblocks", 9) && *(s+9) == '=') {
 379                                                 s += 10;
 380                                                 xtsblocks = (size_t)tfc_humanfsize(s, &stoi);
 381                                                 if (!str_empty(stoi)) {
 382                                                         xtsblocks = (size_t)tfc_fnamesize(s, YES);
 383                                                         xtsblocks = (size_t)tfc_modifysize((tfc_fsize)xtsblocks, strchr(s, ':'));
 384                                                         if (xtsblocks == NOSIZE) xerror(NO, YES, YES,
 385                                                         "%s: invalid blocks per xts block value", s);
 386                                                 }
 387                                                 else xtsblocks = (size_t)tfc_modifysize((tfc_fsize)xtsblocks, strchr(s, ':'));
 388                                                 if (TFC_BLKSIZE % xtsblocks) xerror(NO, YES, YES,
 389                                                         "%s: nr of blocks per xts block is not round to %u bytes",
 390                                                         s, TFC_U(TFC_BLKSIZE));
 391                                                 if ((xtsblocks * TF_BLOCK_SIZE) > TFC_BLKSIZE) xerror(NO, YES, YES,
 392                                                         "%s: nr of blocks per xts block exceeds %u bytes",
 393                                                         s, TFC_U(TFC_BLKSIZE));
 394                                         }
 395                                         else if (!strncmp(s, "iseek", 5) && *(s+5) == '=') {
 396                                                 s += 6;
 397                                                 iseek = tfc_humanfsize(s, &stoi);
 398                                                 if (!str_empty(stoi)) {
 399                                                         iseek = tfc_fnamesize(s, YES);
 400                                                         iseek = tfc_modifysize(iseek, strchr(s, ':'));
 401                                                         if (iseek == NOFSIZE) xerror(NO, YES, YES,
 402                                                         "%s: invalid iseek value", s);
 403                                                 }
 404                                                 else iseek = tfc_modifysize(iseek, strchr(s, ':'));
 405                                                 if (ctr_mode != TFC_MODE_PLAIN && iseek % TF_BLOCK_SIZE)
 406                                                         xerror(NO, YES, YES,
 407                                                                 "%s: not round to TF block size "
 408                                                                 "of %u bytes",
 409                                                                 s, TFC_U(TF_BLOCK_SIZE));
 410                                                 iseek_blocks = iseek / TF_BLOCK_SIZE;
 411                                         }
 412                                         else if (!strncmp(s, "ixseek", 6) && *(s+6) == '=') {
 413                                                 s += 7;
 414                                                 iseek = tfc_humanfsize(s, &stoi);
 415                                                 if (!str_empty(stoi)) {
 416                                                         iseek = tfc_fnamesize(s, YES);
 417                                                         iseek = tfc_modifysize(iseek, strchr(s, ':'));
 418                                                         if (iseek == NOFSIZE) xerror(NO, YES, YES,
 419                                                                 "%s: invalid ixseek value", s);
 420                                                 }
 421                                                 else iseek = tfc_modifysize(iseek, strchr(s, ':'));
 422                                         }
 423                                         else if (!strncmp(s, "ictr", 4) && *(s+4) == '=') {
 424                                                 s += 5;
 425                                                 iseek_blocks = tfc_humanfsize(s, &stoi);
 426                                                 if (!str_empty(stoi)) {
 427                                                         iseek_blocks = tfc_fnamesize(s, YES);
 428                                                         if (iseek_blocks == NOFSIZE)
 429                                                                 xerror(NO, YES, YES,
 430                                                                 "%s: invalid ictr value", s);
 431                                                         iseek_blocks /= TF_BLOCK_SIZE;
 432                                                         iseek_blocks = tfc_modifysize(iseek_blocks, strchr(s, ':'));
 433                                                 }
 434                                                 else iseek_blocks = tfc_modifysize(iseek_blocks, strchr(s, ':'));
 435                                         }
 436                                         else if (!strncmp(s, "ixctr", 5) && *(s+5) == '=') {
 437                                                 s += 6;
 438                                                 iseek_blocks = tfc_humanfsize(s, &stoi);
 439                                                 if (!str_empty(stoi)) {
 440                                                         iseek_blocks = tfc_fnamesize(s, YES);
 441                                                         iseek_blocks = tfc_modifysize(iseek_blocks, strchr(s, ':'));
 442                                                         if (iseek_blocks == NOFSIZE)
 443                                                                 xerror(NO, YES, YES,
 444                                                                 "%s: invalid ixctr value", s);
 445                                                 }
 446                                                 else iseek_blocks = tfc_modifysize(iseek_blocks, strchr(s, ':'));
 447                                                 if (iseek_blocks % TF_BLOCK_SIZE)
 448                                                         xerror(NO, YES, YES,
 449                                                         "%s: not round to TF block size "
 450                                                         "of %u bytes", s, TFC_U(TF_BLOCK_SIZE));
 451                                                 iseek_blocks /= TF_BLOCK_SIZE;
 452                                         }
 453                                         else if (!strncmp(s, "oseek", 5) && *(s+5) == '=') {
 454                                                 s += 6;
 455                                                 oseek = tfc_humanfsize(s, &stoi);
 456                                                 if (!str_empty(stoi)) {
 457                                                         oseek = tfc_fnamesize(s, YES);
 458                                                         oseek = tfc_modifysize(oseek, strchr(s, ':'));
 459                                                         if (oseek == NOFSIZE) xerror(NO, YES, YES,
 460                                                         "%s: invalid oseek value", s);
 461                                                 }
 462                                                 else oseek = tfc_modifysize(oseek, strchr(s, ':'));
 463                                         }
 464                                         else if (!strncmp(s, "ioseek", 6) && *(s+6) == '=') {
 465                                                 s += 7;
 466
 467                                                 iseek = tfc_humanfsize(s, &stoi);
 468                                                 if (!str_empty(stoi)) {
 469                                                         iseek = tfc_fnamesize(s, YES);
 470                                                         iseek = tfc_modifysize(iseek, strchr(s, ':'));
 471                                                         if (iseek == NOFSIZE) xerror(NO, YES, YES,
 472                                                         "%s: invalid iseek value", s);
 473                                                 }
 474                                                 else iseek = tfc_modifysize(iseek, strchr(s, ':'));
 475                                                 if (ctr_mode != TFC_MODE_PLAIN && iseek % TF_BLOCK_SIZE)
 476                                                         xerror(NO, YES, YES,
 477                                                                 "%s: not round to TF block size "
 478                                                                 "of %u bytes",
 479                                                                 s, TFC_U(TF_BLOCK_SIZE));
 480                                                 iseek_blocks = iseek / TF_BLOCK_SIZE;
 481
 482                                                 oseek = tfc_humanfsize(s, &stoi);
 483                                                 if (!str_empty(stoi)) {
 484                                                         oseek = tfc_fnamesize(s, YES);
 485                                                         oseek = tfc_modifysize(oseek, strchr(s, ':'));
 486                                                         if (oseek == NOFSIZE) xerror(NO, YES, YES,
 487                                                         "%s: invalid oseek value", s);
 488                                                 }
 489                                                 else oseek = tfc_modifysize(oseek, strchr(s, ':'));
 490                                         }
 491                                         else if (!strncmp(s, "count", 5) && *(s+5) == '=') {
 492                                                 s += 6;
 493                                                 maxlen = tfc_humanfsize(s, &stoi);
 494                                                 if (!str_empty(stoi)) {
 495                                                         maxlen = tfc_fnamesize(s, YES);
 496                                                         maxlen = tfc_modifysize(maxlen, strchr(s, ':'));
 497                                                         if (maxlen == NOFSIZE) xerror(NO, YES, YES,
 498                                                         "%s: invalid count value", s);
 499                                                 }
 500                                                 else maxlen = tfc_modifysize(maxlen, strchr(s, ':'));
 501                                                 if (counter_opt == TFC_CTR_HEAD)
 502                                                         maxlen += TF_BLOCK_SIZE;
 503                                         }
 504                                         else if (!strncmp(s, "ftrunc", 6) && *(s+6) == '=') {
 505                                                 s += 7;
 506                                                 if (!strcmp(s, "tail")) {
 507                                                         do_ftrunc = TFC_FTRUNC_TAIL;
 508                                                         ftrunc_dfd = NOFSIZE;
 509                                                 }
 510                                                 else {
 511                                                         do_ftrunc = TFC_DO_FTRUNC;
 512                                                         ftrunc_dfd = tfc_humanfsize(s, &stoi);
 513                                                         if (!str_empty(stoi)) {
 514                                                                 ftrunc_dfd = tfc_fnamesize(s, YES);
 515                                                                 ftrunc_dfd = tfc_modifysize(ftrunc_dfd, strchr(s, ':'));
 516                                                                 if (ftrunc_dfd == NOFSIZE) xerror(NO, YES, YES,
 517                                                                 "%s: invalid ftrunc value", s);
 518                                                         }
 519                                                         else ftrunc_dfd = tfc_modifysize(ftrunc_dfd, strchr(s, ':'));
 520                                                 }
 521                                         }
 522                                         else if (!strncmp(s, "xkey", 4) && *(s+4) == '=') {
 523                                                 s += 5;
 524                                                 maxkeylen = tfc_humanfsize(s, &stoi);
 525                                                 if (!str_empty(stoi)) {
 526                                                         maxkeylen = tfc_fnamesize(s, YES);
 527                                                         maxkeylen = tfc_modifysize(maxkeylen, strchr(s, ':'));
 528                                                         if (maxkeylen == NOSIZE)
 529                                                                 xerror(NO, YES, YES,
 530                                                                 "%s: invalid key length value", s);
 531                                                 }
 532                                                 else maxkeylen = tfc_modifysize(maxkeylen, strchr(s, ':'));
 533                                         }
 534                                         else if (!strncmp(s, "okey", 4) && *(s+4) == '=') {
 535                                                 s += 5;
 536                                                 keyoffset = tfc_humanfsize(s, &stoi);
 537                                                 if (!str_empty(stoi)) {
 538                                                         keyoffset = tfc_fnamesize(s, YES);
 539                                                         keyoffset = tfc_modifysize(keyoffset, strchr(s, ':'));
 540                                                         if (keyoffset == NOFSIZE)
 541                                                                 xerror(NO, YES, YES,
 542                                                                 "%s: invalid key offset value", s);
 543                                                 }
 544                                                 else keyoffset = tfc_modifysize(keyoffset, strchr(s, ':'));
 545                                         }
 546                                         else if (!strncmp(s, "xctr", 4) && *(s+4) == '=') {
 547                                                 s += 5;
 548                                                 ctrsz = tfc_humanfsize(s, &stoi);
 549                                                 if (!str_empty(stoi)) {
 550                                                         ctrsz = (size_t)tfc_fnamesize(s, YES);
 551                                                         ctrsz = (size_t)tfc_modifysize((tfc_fsize)ctrsz, strchr(s, ':'));
 552                                                         if (ctrsz == NOSIZE)
 553                                                                 xerror(NO, YES, YES,
 554                                                                 "%s: invalid counter length value", s);
 555                                                 }
 556                                                 else ctrsz = (size_t)tfc_modifysize((tfc_fsize)ctrsz, strchr(s, ':'));
 557                                                 if (ctrsz > TF_BLOCK_SIZE)
 558                                                         xerror(NO, YES, YES, "%s: counter size cannot exceed TF block size", s);
 559                                         }
 560                                         else xerror(NO, YES, YES, "invalid option %s", s);
 561                                 }
 562                                 break;
 563                         case 'S':
 564                                 do_mac = TFC_MAC_SIGN;
 565                                 if (strcasecmp(optarg, "mac") != 0)
 566                                         do_mac_file = optarg;
 567                                 break;
 568                         case 'M':
 569                                 do_mac = TFC_MAC_VRFY;
 570                                 if (!strcasecmp(optarg, "drop"))
 571                                         do_mac = TFC_MAC_DROP;
 572                                 else if (strcasecmp(optarg, "mac") != 0)
 573                                         do_mac_file = optarg;
 574                                 break;
 575                         case 'm':
 576                         case 'u':
 577                                 if (do_mac != TFC_MAC_VRFY)
 578                                         xerror(NO, YES, YES, "signature source was not specified");
 579                                 do_mac = TFC_MAC_JUST_VRFY;
 580                                 if (c == 'u') do_mac = TFC_MAC_JUST_VRFY2;
 581                                 break;
 582                         case 'R':
 583                         case 'Z':
 584                                 if (maxlen != NOFSIZE) {
 585                                         if (c == 'Z') genzero_nr_bytes = maxlen;
 586                                         else genrandom_nr_bytes = maxlen;
 587                                 }
 588                                 else {
 589                                         tfc_fsize t;
 590                                         if (!strcasecmp(optarg, "cbs"))
 591                                                 t = TF_BLOCK_SIZE;
 592                                         else if (!strcasecmp(optarg, "ks"))
 593                                                 t = TF_FROM_BITS(TFC_KEY_BITS);
 594                                         else if (!strcasecmp(optarg, "xks"))
 595                                                 t = TF_FROM_BITS(TFC_KEY_BITS) * 2;
 596                                         else if (!strcasecmp(optarg, "iobs"))
 597                                                 t = blksize;
 598                                         else {
 599                                                 t = tfc_humanfsize(optarg, &stoi);
 600                                                 if (!str_empty(stoi)) {
 601                                                         t = tfc_fnamesize(optarg, NO);
 602                                                         t = tfc_modifysize(t, strchr(optarg, ':'));
 603                                                 }
 604                                                 else t = tfc_modifysize(t, strchr(optarg, ':'));
 605                                         }
 606                                         if (c == 'Z') genzero_nr_bytes = maxlen = t;
 607                                         else genrandom_nr_bytes = maxlen = t;
 608                                 }
 609                                 break;
 610                         case 'a':
 611                                 do_preserve_time = YES;
 612                                 break;
 613                         case 'A':
 614                                 do_outfmt = TFC_OUTFMT_B64;
 615                                 break;
 616                         case 'W':
 617                                 do_outfmt = TFC_OUTFMT_RAW;
 618                                 break;
 619                         case 'H':
 620                                 do_outfmt = TFC_OUTFMT_HEX;
 621                                 break;
 622                         case 'q':
 623                                 quiet = YES;
 624                                 xexit_no_nl = YES;
 625                                 verbose = NO;
 626                                 do_full_hexdump = NO;
 627                                 status_timer = 0;
 628                                 break;
 629                         case 'v':
 630                                 verbose = YES;
 631                                 break;
 632                         case 'V':
 633                                 td = strtod(optarg, &stoi);
 634                                 status_timer = TFC_DTOUSECS(td);
 635                                 if (status_timer <= TFC_DTOUSECS(0) || !str_empty(stoi)) status_timer = 0;
 636                                 break;
 637                         default:
 638                                 usage();
 639                                 break;
 640                 }
 641         }
 642
 643         if (!strcmp(progname, "tfbench")) {
 644                 if (!*(argv+optind)) usage();
 645
 646                 td = strtod(*(argv+optind), &stoi);
 647                 if (td <= TFC_DTOUSECS(0) || !str_empty(stoi))
 648                         xerror(NO, YES, YES,
 649                         "%s: invalid benchmark time in seconds", *(argv+optind));
 650                 bench_timer = TFC_DTOUSECS(td);
 651                 do_benchmark(bench_timer, td);
 652         }
 653         if (genrandom_nr_bytes) {
 654                 ctr_mode = TFC_MODE_STREAM;
 655                 do_edcrypt = TFC_DO_ENCRYPT;
 656                 gen_write_bytes(*(argv+optind), oseek, genrandom_nr_bytes);
 657         }
 658         if (genzero_nr_bytes) {
 659                 ctr_mode = TFC_MODE_PLAIN;
 660                 do_edcrypt = TFC_DO_PLAIN;
 661                 gen_write_bytes(*(argv+optind), oseek, genzero_nr_bytes);
 662         }
 663
 664         if (rawkey && password)
 665                 xerror(NO, YES, YES, "Cannot use rawkey and hashing password!");
 666         if (do_edcrypt == TFC_DO_ENCRYPT && do_mac >= TFC_MAC_VRFY)
 667                 xerror(NO, YES, YES, "Cannot encrypt and verify signature!");
 668         if (do_edcrypt == TFC_DO_DECRYPT && do_mac == TFC_MAC_SIGN)
 669                 xerror(NO, YES, YES, "Cannot decrypt and calculate signature!");
 670         if (do_edcrypt == TFC_DO_DECRYPT && counter_opt == TFC_CTR_RAND)
 671                 xerror(NO, YES, YES, "Cannot decrypt and embed a generated CTR into file!");
 672         if (do_edcrypt == TFC_DO_ENCRYPT && counter_opt == TFC_CTR_HEAD)
 673                 xerror(NO, YES, YES, "Cannot encrypt and read CTR from source!");
 674         if (overwrite_source && counter_opt == TFC_CTR_RAND)
 675                 xerror(NO, YES, YES, "Cannot embed a CTR into file when overwriting it!");
 676         if (ctr_mode == TFC_MODE_PLAIN
 677         && (do_edcrypt || do_mac || rawkey
 678         || mackey_opt || counter_opt || counter_file))
 679                 xerror(NO, YES, YES, "Encryption facility is disabled when in plain IO mode.");
 680
 681         errno = 0;
 682         do_stop = NO;
 683
 684         if (saltf) {
 685                 int saltfd;
 686
 687                 memset(tfc_salt, 0, TFC_MAX_SALT);
 688                 tfc_saltsz = 0;
 689                 if (!strcasecmp(saltf, "disable")) goto _nosalt;
 690
 691                 if (!strcmp(saltf, "-")) saltfd = 0;
 692                 else saltfd = xopen(saltf, O_RDONLY | O_LARGEFILE);
 693                 lio = xread(saltfd, tfc_salt, TFC_MAX_SALT - TF_FROM_BITS(TFC_KEY_BITS));
 694                 if (lio == NOSIZE) xerror(NO, NO, YES, "%s", saltf);
 695                 tfc_saltsz = lio;
 696                 xclose(saltfd);
 697         }
 698
 699 _nosalt:
 700         if (mackey_opt == TFC_MACKEY_FILE && mackeyf) {
 701                 int mkfd = -1;
 702                 tfc_yesno do_stop;
 703
 704                 if (!strcmp(mackeyf, "-")) mkfd = 0;
 705                 else mkfd = xopen(mackeyf, O_RDONLY | O_LARGEFILE);
 706
 707                 skein_init(&sk, TFC_KEY_BITS);
 708
 709                 do_stop = NO;
 710                 while (1) {
 711                         if (do_stop) break;
 712                         pblk = tmpdata;
 713                         ldone = 0;
 714                         lrem = lblock = sizeof(tmpdata);
 715                         if (error_action == TFC_ERRACT_SYNC) rdpos = tfc_fdgetpos(mkfd);
 716 _mkragain:              lio = xread(mkfd, pblk, lrem);
 717                         if (lio == 0 && do_stop == NO) do_stop = YES;
 718                         if (lio != NOSIZE) ldone += lio;
 719                         else {
 720                                 if (errno != EIO && catch_all_errors != YES)
 721                                         xerror(NO, NO, NO, "%s", mackeyf);
 722                                 switch (error_action) {
 723                                         case TFC_ERRACT_CONT: xerror(YES, NO, NO, "%s", mackeyf); goto _mkragain; break;
 724                                         case TFC_ERRACT_SYNC:
 725                                         case TFC_ERRACT_LSYNC:
 726                                                 xerror(YES, NO, NO, "%s", mackeyf);
 727                                                 lio = ldone = lrem = lblock;
 728                                                 memset(tmpdata, 0, lio);
 729                                                 if (rdpos == NOFSIZE) lseek(mkfd, lio, SEEK_CUR);
 730                                                 else lseek(mkfd, rdpos + lio, SEEK_SET);
 731                                                 break;
 732                                         default: xerror(NO, NO, NO, "%s", mackeyf); break;
 733                                 }
 734                         }
 735                         if (lio && lio < lrem) {
 736                                 pblk += lio;
 737                                 lrem -= lio;
 738                                 goto _mkragain;
 739                         }
 740
 741                         skein_update(&sk, tmpdata, ldone);
 742                 }
 743
 744                 skein_final(mackey, &sk);
 745
 746                 xclose(mkfd);
 747         }
 748         else if (mackey_opt == TFC_MACKEY_PASSWORD) {
 749                 memset(&getps, 0, sizeof(struct getpasswd_state));
 750                 getps.fd = getps.efd = -1;
 751                 getps.passwd = pwdask;
 752                 getps.pwlen = sizeof(pwdask)-1;
 753                 getps.echo = mac_pw_prompt ? mac_pw_prompt : "Enter MAC password: ";
 754                 getps.charfilter = (show_secrets == YES) ? getps_plain_filter : getps_filter;
 755                 getps.maskchar = (show_secrets == YES) ? 0 : 'x';
 756                 getps.flags = GETP_WAITFILL;
 757                 n = xgetpasswd(&getps);
 758                 if (n == NOSIZE) xerror(NO, NO, YES, "getting MAC password");
 759                 if (n == ((size_t)-2)) xexit(1);
 760                 if (verbose) say_hint(pwdask, n, "MAC password hint");
 761                 skein(mackey, TF_MAX_BITS, NULL, pwdask, n);
 762         }
 763
 764
 765         if ((strlen(progname) <= 9)
 766         && ((!strcmp(progname, "sksum"))
 767         || ((!memcmp(progname, "sk", 2))
 768         && (!memcmp(progname+3, "sum", 3)
 769         || !memcmp(progname+4, "sum", 3)
 770         || !memcmp(progname+5, "sum", 3)
 771         || !memcmp(progname+6, "sum", 3)))))
 772                 do_sksum(progname, argv+optind);
 773         if (!strcmp(progname, "tfbase64")) do_edbase64(argv+optind);
 774
 775         idx = optind;
 776
 777         if (argv[idx]) {
 778                 if (password || rawkey > TFC_RAWKEY_KEYFILE) goto _nokeyfd;
 779                 if (!strcmp(argv[idx], "-")) kfd = 0;
 780                 else kfd = xopen(argv[idx], O_RDONLY | O_LARGEFILE);
 781
 782                 lio = strnlen(argv[idx], PATH_MAX);
 783                 memset(argv[idx], '*', lio);
 784
 785                 idx++;
 786         }
 787         else password = YES;
 788
 789         errno = 0;
 790         if (do_full_key == NO && tweakf) {
 791                 int twfd;
 792
 793                 if (!strcmp(tweakf, "-")) twfd = 0;
 794                 else twfd = open(tweakf, O_RDONLY | O_LARGEFILE);
 795                 if (twfd == -1) xerror(NO, NO, YES, "%s", tweakf);
 796                 lio = ldone = xread(twfd, tweak, TF_TWEAK_SIZE);
 797                 if (lio == NOSIZE) xerror(NO, NO, YES, "%s", tweakf);
 798                 if (ldone < TF_TWEAK_SIZE)
 799                         xerror(NO, NO, YES, "%s: %zu bytes tweak required", tweakf, TF_TWEAK_SIZE);
 800                 xclose(twfd);
 801         }
 802
 803 _nokeyfd:
 804         errno = 0;
 805         if (argv[idx]) {
 806                 if (!strcmp(argv[idx], "-") && kfd) sfd = 0;
 807                 else {
 808                         sfd = xopen(argv[idx], O_RDONLY | O_LARGEFILE);
 809                         if (do_preserve_time) if (fstat(sfd, &s_stat) == -1)
 810                                 xerror(YES, NO, YES, "stat(%s)", argv[idx]);
 811                 }
 812
 813                 if ((do_mac >= TFC_MAC_VRFY || do_mac <= TFC_MAC_DROP) && !do_mac_file) {
 814                         maxlen = tfc_fdsize(sfd);
 815                         if (maxlen == NOFSIZE)
 816                                 xerror(NO, YES, YES,
 817                                 "Cannot verify embedded MAC with non-seekable source!");
 818                         maxlen -= TF_FROM_BITS(macbits);
 819                 }
 820                 srcfname = argv[idx];
 821                 idx++;
 822         }
 823
 824         if (!do_mac_file && (do_mac >= TFC_MAC_VRFY && sfd == 0))
 825                 xerror(NO, YES, YES, "Cannot verify embedded MAC with non-seekable source!");
 826
 827         if (ctrsz == NOSIZE) ctrsz = TF_BLOCK_SIZE;
 828         if (ctrsz > TF_BLOCK_SIZE) ctrsz = TF_BLOCK_SIZE;
 829
 830         if (ctr_mode == TFC_MODE_ECB) goto _ctrskip1;
 831         errno = 0;
 832         if (counter_file) {
 833                 int ctrfd;
 834
 835                 if (!strcmp(counter_file, "-")) ctrfd = 0;
 836                 else ctrfd = xopen(counter_file, O_RDONLY | O_LARGEFILE);
 837                 lio = xread(ctrfd, ctr, ctrsz);
 838                 if (lio == NOSIZE) xerror(NO, NO, YES, "%s", counter_file);
 839                 if (lio < ctrsz) xerror(NO, YES, YES, "counter file is too small (%zu)!", lio);
 840                 xclose(ctrfd);
 841         }
 842         else if (counter_opt == TFC_CTR_HEAD) {
 843                 pblk = ctr;
 844                 ldone = 0;
 845                 lrem = lblock = ctrsz;
 846                 if (error_action == TFC_ERRACT_SYNC) rdpos = tfc_fdgetpos(sfd);
 847 _ctrragain:     lio = xread(sfd, pblk, lrem);
 848                 if (lio != NOSIZE) ldone += lio;
 849                 else {
 850                         if (errno != EIO && catch_all_errors != YES)
 851                                 xerror(NO, NO, NO, "%s", srcfname);
 852                         switch (error_action) {
 853                                 case TFC_ERRACT_CONT: xerror(YES, NO, NO, "%s", srcfname); goto _ctrragain; break;
 854                                 case TFC_ERRACT_SYNC:
 855                                 case TFC_ERRACT_LSYNC:
 856                                         xerror(YES, NO, NO, "%s", srcfname);
 857                                         lio = ldone = lrem = lblock;
 858                                         memset(ctr, 0, lio);
 859                                         if (rdpos == NOFSIZE) lseek(sfd, lio, SEEK_CUR);
 860                                         else lseek(sfd, rdpos + lio, SEEK_SET);
 861                                         break;
 862                                 default: xerror(NO, NO, NO, "%s", srcfname); break;
 863                         }
 864                 }
 865                 if (lio && lio < lrem) {
 866                         pblk += lio;
 867                         lrem -= lio;
 868                         goto _ctrragain;
 869                 }
 870                 total_processed_src += ldone;
 871         }
 872
 873 _ctrskip1:
 874         if (iseek) {
 875                 if (counter_opt == TFC_CTR_HEAD && ctr_mode != TFC_MODE_ECB)
 876                         iseek += ctrsz;
 877                 if (lseek(sfd, iseek, SEEK_SET) == -1)
 878                         xerror(ignore_seek_errors, NO, NO, "%s: seek failed", srcfname);
 879         }
 880
 881         if (ctr_mode == TFC_MODE_PLAIN) goto _plain;
 882
 883         if (verbose) tfc_esay("%s: hashing password", tfc_format_pid(progname));
 884
 885         if (rawkey == TFC_RAWKEY_KEYFILE) {
 886                 tfc_yesno xtskeyset = NO;
 887
 888                 pblk = key;
 889 _xts2key:       ldone = 0;
 890                 lrem = lblock = TF_FROM_BITS(TFC_KEY_BITS);
 891                 if (error_action == TFC_ERRACT_SYNC) rdpos = tfc_fdgetpos(kfd);
 892 _keyragain:     lio = xread(kfd, pblk, lrem);
 893                 if (lio != NOSIZE) ldone += lio;
 894                 else {
 895                         if (errno != EIO && catch_all_errors != YES)
 896                                 xerror(NO, NO, NO, "reading key");
 897                         switch (error_action) {
 898                                 case TFC_ERRACT_CONT: xerror(YES, NO, NO, "reading key"); goto _keyragain; break;
 899                                 case TFC_ERRACT_SYNC:
 900                                 case TFC_ERRACT_LSYNC:
 901                                         xerror(YES, NO, NO, "reading key");
 902                                         lio = ldone = lrem = lblock;
 903                                         memset(key, 0, lio);
 904                                         if (rdpos == NOFSIZE) lseek(kfd, lio, SEEK_CUR);
 905                                         else lseek(kfd, rdpos + lio, SEEK_SET);
 906                                         break;
 907                                 default: xerror(NO, NO, NO, "reading key"); break;
 908                         }
 909                 }
 910                 if (lio && lio < lrem) {
 911                         pblk += lio;
 912                         lrem -= lio;
 913                         goto _keyragain;
 914                 }
 915                 if (ldone < lblock) xerror(NO, YES, YES, "rawkey too small! (%zu)", ldone);
 916
 917                 if (ctr_mode == TFC_MODE_XTS) {
 918                         if (xtskeyset == NO) {
 919                                 pblk = xtskey;
 920                                 xtskeyset = YES;
 921                                 goto _xts2key;
 922                         }
 923                 }
 924         }
 925         else if (rawkey == TFC_RAWKEY_ASKSTR) {
 926                 tfc_yesno xtskeyset = NO;
 927
 928                 pblk = key; n = sizeof(key);
 929 _xts2keyaskstr: memset(&getps, 0, sizeof(struct getpasswd_state));
 930                 getps.fd = getps.efd = -1;
 931                 getps.passwd = (char *)pblk;
 932                 getps.pwlen = n;
 933                 getps.echo = pw_prompt ? pw_prompt : "Enter rawkey (str): ";
 934                 getps.charfilter = (show_secrets == YES) ? getps_plain_filter : getps_filter;
 935                 getps.maskchar = (show_secrets == YES) ? 0 : 'x';
 936                 getps.flags = GETP_WAITFILL;
 937                 n = xgetpasswd(&getps);
 938                 if (n == NOSIZE) xerror(NO, NO, YES, "getting string rawkey");
 939                 if (n == ((size_t)-2)) xexit(1);
 940                 if (verbose) say_hint(pblk, n, "Raw string key hint");
 941                 if (ctr_mode == TFC_MODE_XTS) {
 942                         if (xtskeyset == NO) {
 943                                 pblk = xtskey; n = sizeof(xtskey);
 944                                 xtskeyset = YES;
 945                                 goto _xts2keyaskstr;
 946                         }
 947                 }
 948         }
 949         else if (rawkey == TFC_RAWKEY_ASKHEX) {
 950                 tfc_yesno xtskeyset = NO;
 951
 952                 pblk = key;
 953 _rawkey_hex_again:
 954                 memset(&getps, 0, sizeof(struct getpasswd_state));
 955                 getps.fd = getps.efd = -1;
 956                 getps.passwd = pwdask;
 957                 getps.pwlen = (TF_FROM_BITS(TFC_KEY_BITS)*2);
 958                 getps.echo = pw_prompt ? pw_prompt : "Enter rawkey (hex): ";
 959                 getps.charfilter = (show_secrets == YES) ? getps_plain_hex_filter : getps_hex_filter;
 960                 getps.maskchar = (show_secrets == YES) ? 0 : 'x';
 961                 getps.flags = GETP_WAITFILL;
 962                 n = xgetpasswd(&getps);
 963                 if (n == NOSIZE) xerror(NO, NO, YES, "getting hex rawkey");
 964                 if (n == ((size_t)-2)) xexit(1);
 965                 if (n % 2) {
 966                         tfc_esay("Please input even number of hex digits!");
 967                         goto _rawkey_hex_again;
 968                 }
 969                 hex2bin(pblk, pwdask);
 970                 memset(pwdask, 0, sizeof(pwdask));
 971                 if (verbose) say_hint(pblk, n/2, "Raw hex key hint");
 972                 if (ctr_mode == TFC_MODE_XTS) {
 973                         if (xtskeyset == NO) {
 974                                 pblk = xtskey;
 975                                 xtskeyset = YES;
 976                                 goto _rawkey_hex_again;
 977                         }
 978                 }
 979         }
 980         else if (password) {
 981 _pwdagain:      memset(&getps, 0, sizeof(struct getpasswd_state));
 982                 getps.fd = getps.efd = -1;
 983                 getps.passwd = pwdask;
 984                 getps.pwlen = sizeof(pwdask)-1;
 985                 getps.echo = pw_prompt ? pw_prompt : "Enter password: ";
 986                 getps.charfilter = (show_secrets == YES) ? getps_plain_filter : getps_filter;
 987                 getps.maskchar = (show_secrets == YES) ? 0 : 'x';
 988                 getps.flags = GETP_WAITFILL;
 989                 n = xgetpasswd(&getps);
 990                 if (n == NOSIZE) xerror(NO, NO, YES, "getting password");
 991                 if (n == ((size_t)-2)) xexit(1);
 992                 if (do_edcrypt == TFC_DO_ENCRYPT && no_repeat == NO) {
 993                         getps.fd = getps.efd = -1;
 994                         getps.passwd = pwdagain;
 995                         getps.pwlen = sizeof(pwdagain)-1;
 996                         getps.echo = "Enter it again: ";
 997                         getps.flags = GETP_WAITFILL;
 998                         n = xgetpasswd(&getps);
 999                         if (n == NOSIZE) xerror(NO, NO, YES, "getting password again");
1000                         if (n == ((size_t)-2)) xexit(1);
1001                         if (strncmp(pwdask, pwdagain, sizeof(pwdagain)-1) != 0) {
1002                                 tfc_esay("Passwords are different, try again");
1003                                 goto _pwdagain;
1004                         }
1005                 }
1006                 if (verbose) say_hint(pwdask, n, "Password hint");
1007                 skein(key, TFC_KEY_BITS, mackey_opt ? mackey : NULL, pwdask, n);
1008                 memset(pwdask, 0, sizeof(pwdask));
1009                 memset(pwdagain, 0, sizeof(pwdagain));
1010         }
1011         else {
1012                 if (skeinfd(key, TFC_KEY_BITS, mackey_opt ? mackey : NULL, kfd, keyoffset, maxkeylen) != YES)
1013                         xerror(NO, NO, YES, "hashing key");
1014         }
1015
1016         if (rawkey == NO) {
1017                 if (tfc_saltsz > 0) {
1018                         memcpy(tfc_salt+tfc_saltsz, key, TF_FROM_BITS(TFC_KEY_BITS));
1019                         skein(key, TFC_KEY_BITS, mackey_opt ? mackey : NULL, tfc_salt, tfc_saltsz+TF_FROM_BITS(TFC_KEY_BITS));
1020                 }
1021                 if (nr_turns > 1) for (x = 0; x < nr_turns; x++)
1022                         skein(key, TFC_KEY_BITS, mackey_opt ? mackey : NULL, key, TF_FROM_BITS(TFC_KEY_BITS));
1023                 memset(tfc_salt, 0, TFC_MAX_SALT);
1024         }
1025
1026         if (ctr_mode == TFC_MODE_XTS && rawkey == NO) {
1027                 skein(xtskey, TF_NR_KEY_BITS, mackey_opt ? mackey : NULL, key, TF_FROM_BITS(TFC_KEY_BITS));
1028         }
1029
1030         if (genkeyf) {
1031                 int krfd;
1032                 tfc_yesno xtskeyset = NO;
1033
1034                 pblk = key;
1035                 if (!strcmp(genkeyf, "-")) krfd = 1;
1036                 else krfd = xopen(genkeyf, O_WRONLY | O_CREAT | O_LARGEFILE | write_flags);
1037 _xts2genkey:    if (xwrite(krfd, pblk, TF_FROM_BITS(TFC_KEY_BITS)) == NOSIZE) xerror(NO, NO, YES, "%s", genkeyf);
1038                 if (do_fsync && fsync(krfd) == -1) xerror(NO, NO, YES, "%s", genkeyf);
1039                 if (verbose && xtskeyset == NO) {
1040                         tfc_esay("%s: password hashing done", tfc_format_pid(progname));
1041                         tfc_esay("%s: rawkey written to %s.", tfc_format_pid(progname), genkeyf);
1042                         tfc_esay("%s: Have a nice day!", tfc_format_pid(progname));
1043                 }
1044
1045                 if (ctr_mode == TFC_MODE_XTS) {
1046                         if (xtskeyset == NO) {
1047                                 pblk = xtskey;
1048                                 xtskeyset = YES;
1049                                 goto _xts2genkey;
1050                         }
1051                 }
1052
1053                 fchmod(krfd, 0600);
1054                 xclose(krfd);
1055                 xexit(0);
1056         }
1057
1058         if (do_mac != NO) {
1059                 if (mackey_opt == TFC_MACKEY_RAWKEY) skein(mackey, TF_MAX_BITS, key, key, TF_FROM_BITS(TFC_KEY_BITS));
1060                 if (verbose) tfc_esay("%s: doing MAC calculation, processing speed "
1061                         "will be slower.", tfc_format_pid(progname));
1062                 if (mackey_opt) skein_init_key(&sk, mackey, macbits);
1063                 else skein_init(&sk, macbits);
1064         }
1065
1066         if (!counter_file && counter_opt <= TFC_CTR_SHOW && ctr_mode != TFC_MODE_ECB) {
1067                 skein(ctr, TF_TO_BITS(ctrsz), mackey_opt ? mackey : NULL, key, TF_FROM_BITS(TFC_KEY_BITS));
1068         }
1069
1070         tf_convkey(key);
1071         if (ctr_mode == TFC_MODE_XTS) tf_convkey(xtskey);
1072         if (do_full_key == NO) {
1073                 if (!tweakf) skein(tweak, TF_NR_TWEAK_BITS, NULL, key, TF_FROM_BITS(TFC_KEY_BITS));
1074                 tf_tweak_set(key, tweak);
1075         }
1076         if (ctr_mode == TFC_MODE_ECB) goto _ctrskip2;
1077
1078         if (counter_opt == TFC_CTR_ZERO) memset(ctr, 0, ctrsz);
1079
1080         tfc_data_to_words64(&iseek_blocks, sizeof(iseek_blocks));
1081         tf_ctr_set(ctr, &iseek_blocks, sizeof(iseek_blocks));
1082         if (do_mac == TFC_MAC_JUST_VRFY2) memcpy(svctr, ctr, TF_BLOCK_SIZE);
1083
1084         if (counter_opt == TFC_CTR_SHOW) {
1085                 switch (do_outfmt) {
1086                         case TFC_OUTFMT_B64: tfc_printbase64(stderr, ctr, ctrsz, YES); break;
1087                         case TFC_OUTFMT_RAW: xwrite(2, ctr, ctrsz); break;
1088                         case TFC_OUTFMT_HEX: mehexdump(ctr, ctrsz, ctrsz, YES); break;
1089                 }
1090         }
1091         else if (counter_opt == TFC_CTR_RAND) tfc_getrandom(ctr, ctrsz);
1092
1093 _ctrskip2:
1094         if (kfd != -1) {
1095                 xclose(kfd);
1096                 kfd = -1;
1097         }
1098         if (verbose) tfc_esay("%s: password hashing done", tfc_format_pid(progname));
1099
1100         if (overwrite_source && srcfname) argv[idx] = srcfname;
1101
1102 _plain:
1103         if (argv[idx]) {
1104                 if (!strcmp(argv[idx], "-")) dfd = 1;
1105                 else dfd = xxopen(YES, argv[idx], O_RDWR | O_LARGEFILE | write_flags);
1106                 if (dfd == -1) dfd = xopen(argv[idx], O_WRONLY | O_CREAT | O_LARGEFILE | write_flags);
1107                 dstfname = argv[idx];
1108                 idx++;
1109         }
1110
1111         if (oseek) {
1112                 if (lseek(dfd, oseek, SEEK_SET) == -1)
1113                         xerror(ignore_seek_errors, NO, NO, "%s: seek failed", dstfname);
1114         }
1115
1116         for (x = 1; x < NSIG; x++) signal(x, SIG_IGN);
1117         memset(&sigact, 0, sizeof(sigact));
1118         sigact.sa_flags = SA_RESTART;
1119         sigact.sa_handler = print_crypt_status;
1120         sigaction(SIGUSR1, &sigact, NULL);
1121         sigaction(SIGALRM, &sigact, NULL);
1122         if (status_timer) setup_next_alarm(status_timer > 1000000 ? 1000000 : status_timer);
1123         sigact.sa_handler = change_status_width;
1124         sigaction(SIGQUIT, &sigact, NULL);
1125         sigact.sa_handler = change_status_timer;
1126         sigaction(SIGUSR2, &sigact, NULL);
1127         if (quiet == NO) {
1128                 sigact.sa_handler = print_crypt_status;
1129                 sigaction(SIGINT, &sigact, NULL);
1130                 sigaction(SIGTERM, &sigact, NULL);
1131                 sigaction(SIGTSTP, &sigact, NULL);
1132         }
1133         else {
1134                 sigact.sa_handler = exit_sigterm;
1135                 sigaction(SIGINT, &sigact, NULL);
1136                 sigaction(SIGTERM, &sigact, NULL);
1137                 sigact.sa_handler = handle_sigtstp;
1138                 sigaction(SIGTSTP, &sigact, NULL);
1139         }
1140         memset(&sigact, 0, sizeof(struct sigaction));
1141
1142         tfc_getcurtime(&delta_time);
1143
1144         errno = 0;
1145         if (counter_opt == TFC_CTR_RAND && ctr_mode != TFC_MODE_ECB) {
1146                 pblk = ctr;
1147                 lio = lrem = ctrsz;
1148                 ldone = 0;
1149 _ctrwagain:     lio = xwrite(dfd, pblk, lrem);
1150                 if (lio != NOSIZE) ldone += lio;
1151                 else xerror(NO, NO, NO, "%s", dstfname);
1152                 if (do_fsync && fsync(dfd) == -1) xerror(NO, NO, NO, "%s", dstfname);
1153                 if (lio < lrem) {
1154                         pblk += lio;
1155                         lrem -= lio;
1156                         goto _ctrwagain;
1157                 }
1158                 total_written_dst += ldone;
1159                 total_processed_dst += ldone;
1160                 delta_processed += ldone;
1161         }
1162
1163         if (ctr_mode == TFC_MODE_STREAM) tfe_init_iv(&tfe, key, ctr);
1164
1165         if (do_mac == TFC_MAC_JUST_VRFY2) {
1166                 rwd = tfc_fdgetpos(sfd);
1167                 if (rwd == NOFSIZE) {
1168                         tfc_esay("%s: WARNING: input is not seekable, disabling MAC testing mode", tfc_format_pid(progname));
1169                         do_mac = TFC_MAC_VRFY;
1170                 }
1171                 goto _nodecrypt_again_vrfy2;
1172
1173 _decrypt_again_vrfy2:
1174                 if (lseek(sfd, (off_t)rwd, SEEK_SET) == ((off_t)-1)) {
1175                         xerror(ignore_seek_errors, NO, YES, "MAC testing seek failed");
1176                 }
1177                 total_processed_src = rwd;
1178                 memcpy(ctr, svctr, TF_BLOCK_SIZE);
1179                 memset(svctr, 0, TF_BLOCK_SIZE);
1180         }
1181
1182 _nodecrypt_again_vrfy2:
1183         loopcnt = 1;
1184         errno = 0;
1185         do_stop = NO;
1186         while (1) {
1187                 if (do_stop) break;
1188                 pblk = srcblk;
1189                 ldone = 0;
1190                 lrem = lblock = blk_len_adj(maxlen, total_processed_src, blksize);
1191                 if (error_action == TFC_ERRACT_SYNC) rdpos = tfc_fdgetpos(sfd);
1192 _ragain:        lio = xread(sfd, pblk, lrem);
1193                 if (lio == 0) {
1194                         if ((do_read_loops != 0 && sfd != 0) && (loopcnt < do_read_loops)) {
1195                                 lseek(sfd, 0L, SEEK_SET);
1196                                 loopcnt++;
1197                                 goto _ragain;
1198                         }
1199
1200                         do_stop = YES;
1201                 }
1202                 if (lio != NOSIZE) ldone += lio;
1203                 else {
1204                         if (errno != EIO && catch_all_errors != YES)
1205                                 xerror(NO, NO, NO, "%s", srcfname);
1206                         switch (error_action) {
1207                                 case TFC_ERRACT_CONT: xerror(YES, NO, NO, "%s", srcfname); goto _ragain; break;
1208                                 case TFC_ERRACT_SYNC:
1209                                 case TFC_ERRACT_LSYNC:
1210                                         xerror(YES, NO, NO, "%s", srcfname);
1211                                         lio = ldone = lrem = lblock;
1212                                         memset(srcblk, 0, lio);
1213                                         if (rdpos == NOFSIZE) lseek(sfd, lio, SEEK_CUR);
1214                                         else lseek(sfd, rdpos + lio, SEEK_SET);
1215                                         break;
1216                                 default: xerror(NO, NO, NO, "%s", srcfname); break;
1217                         }
1218                 }
1219                 if (unbuffered == NO && lio && lio < lrem) {
1220                         pblk += lio;
1221                         lrem -= lio;
1222                         goto _ragain;
1223                 }
1224                 total_processed_src += ldone;
1225
1226                 if (do_pad && (ldone % TF_BLOCK_SIZE)) {
1227                         size_t orig = ldone;
1228                         ldone += (TF_BLOCK_SIZE - (ldone % TF_BLOCK_SIZE));
1229                         if (ldone > blksize) ldone = blksize;
1230                         memset(srcblk+orig, 0, sizeof(srcblk)-orig);
1231                 }
1232
1233                 if (do_mac == TFC_MAC_SIGN) skein_update(&sk, srcblk, ldone);
1234
1235                 if (ctr_mode == TFC_MODE_CTR) tf_ctr_crypt(key, ctr, dstblk, srcblk, ldone);
1236                 else if (ctr_mode == TFC_MODE_STREAM) tf_stream_crypt(&tfe, dstblk, srcblk, ldone);
1237                 else if (ctr_mode == TFC_MODE_XTS && do_edcrypt == TFC_DO_ENCRYPT)
1238                         tf_xts_encrypt(key, xtskey, ctr, dstblk, srcblk, ldone, xtsblocks);
1239                 else if (ctr_mode == TFC_MODE_XTS && do_edcrypt == TFC_DO_DECRYPT)
1240                         tf_xts_decrypt(key, xtskey, ctr, dstblk, srcblk, ldone, xtsblocks);
1241                 else if (ctr_mode == TFC_MODE_ECB && do_edcrypt == TFC_DO_ENCRYPT)
1242                         tf_ecb_encrypt(key, dstblk, srcblk, ldone);
1243                 else if (ctr_mode == TFC_MODE_ECB && do_edcrypt == TFC_DO_DECRYPT)
1244                         tf_ecb_decrypt(key, dstblk, srcblk, ldone);
1245                 else if (ctr_mode == TFC_MODE_CBC && do_edcrypt == TFC_DO_ENCRYPT)
1246                         tf_cbc_encrypt(key, ctr, dstblk, srcblk, ldone);
1247                 else if (ctr_mode == TFC_MODE_CBC && do_edcrypt == TFC_DO_DECRYPT)
1248                         tf_cbc_decrypt(key, ctr, dstblk, srcblk, ldone);
1249
1250                 else if (ctr_mode == TFC_MODE_PLAIN)
1251                         memcpy(dstblk, srcblk, ldone);
1252
1253                 if (do_mac >= TFC_MAC_VRFY) skein_update(&sk, dstblk, ldone);
1254                 if (do_mac >= TFC_MAC_JUST_VRFY) goto _nowrite;
1255
1256                 pblk = dstblk;
1257                 lrem = ldone;
1258                 ldone = 0;
1259 _wagain:        lio = xwrite(dfd, pblk, lrem);
1260                 if (lio != NOSIZE) ldone += lio;
1261                 else xerror(NO, NO, NO, "%s", dstfname);
1262                 if (do_fsync && fsync(dfd) == -1) xerror(NO, NO, NO, "%s", dstfname);
1263                 if (lio < lrem) {
1264                         pblk += lio;
1265                         lrem -= lio;
1266                         goto _wagain;
1267                 }
1268                 total_written_dst += ldone;
1269 _nowrite:       total_processed_dst += ldone;
1270                 delta_processed += ldone;
1271
1272                 if (maxlen != NOFSIZE && total_processed_src >= maxlen) {
1273                         do_stop = YES;
1274                         break;
1275                 }
1276         }
1277
1278         if (verbose && status_timer && do_statline_dynamic == YES && statline_was_shown == YES) tfc_esay("\n");
1279
1280         errno = 0;
1281         if (do_mac >= TFC_MAC_VRFY) {
1282                 if (!do_mac_file) {
1283                         pblk = macvrfy;
1284                         ldone = 0;
1285                         lrem = lblock = TF_FROM_BITS(macbits);
1286                         if (error_action == TFC_ERRACT_SYNC) rdpos = tfc_fdgetpos(sfd);
1287 _macragain:             lio = xread(sfd, pblk, lrem);
1288                         if (lio != NOSIZE) ldone += lio;
1289                         else {
1290                                 if (errno != EIO && catch_all_errors != YES)
1291                                         xerror(NO, NO, NO, "%s", srcfname);
1292                                 switch (error_action) {
1293                                         case TFC_ERRACT_CONT: xerror(YES, NO, NO, "%s", srcfname); goto _macragain; break;
1294                                         case TFC_ERRACT_SYNC:
1295                                         case TFC_ERRACT_LSYNC:
1296                                                 xerror(YES, NO, NO, "%s", srcfname);
1297                                                 lio = ldone = lrem = lblock;
1298                                                 memset(macvrfy, 0, lio);
1299                                                 if (rdpos == NOFSIZE) lseek(sfd, lio, SEEK_CUR);
1300                                                 else lseek(sfd, rdpos + lio, SEEK_SET);
1301                                                 break;
1302                                         default: xerror(NO, NO, NO, "%s", srcfname); break;
1303                                 }
1304                         }
1305                         if (lio && lio < lrem) {
1306                                 pblk += lio;
1307                                 lrem -= lio;
1308                                 goto _macragain;
1309                         }
1310                         total_processed_src += ldone;
1311                 }
1312                 else {
1313                         int mfd;
1314
1315                         if (!strcmp(do_mac_file, "-")) mfd = 0;
1316                         else mfd = xopen(do_mac_file, O_RDONLY | O_LARGEFILE);
1317                         lio = ldone = xread(mfd, tmpdata, sizeof(tmpdata));
1318                         if (lio == NOSIZE) xerror(NO, NO, YES, "%s", do_mac_file);
1319                         if (!memcmp(tmpdata, TFC_ASCII_TFC_MAC_FOURCC, TFC_ASCII_TFC_MAC_FOURCC_LEN)) {
1320                                 memmove(tmpdata, tmpdata+TFC_ASCII_TFC_MAC_FOURCC_LEN,
1321                                         sizeof(tmpdata)-TFC_ASCII_TFC_MAC_FOURCC_LEN);
1322                                 lio = TF_FROM_BITS(macbits);
1323                                 base64_decode((char *)macvrfy, lio, (char *)tmpdata, sizeof(tmpdata));
1324                         }
1325                         else memcpy(macvrfy, tmpdata, TF_FROM_BITS(macbits));
1326                         xclose(mfd);
1327                 }
1328
1329                 if (ldone < TF_FROM_BITS(macbits)) {
1330                         if (quiet == NO) tfc_esay("%s: short signature (%zu), "
1331                                 "not verifying", tfc_format_pid(progname), ldone);
1332                         exitcode = 1;
1333                         goto _shortmac;
1334                 }
1335
1336                 skein_final(macresult, &sk);
1337
1338                 if (ctr_mode == TFC_MODE_CTR) tf_ctr_crypt(key, ctr, tmpdata, macvrfy, TF_FROM_BITS(macbits));
1339                 else if (ctr_mode == TFC_MODE_STREAM) tf_stream_crypt(&tfe, tmpdata, macvrfy, TF_FROM_BITS(macbits));
1340                 else if (ctr_mode == TFC_MODE_XTS) tf_xts_decrypt(key, xtskey, ctr, tmpdata, macvrfy, TF_FROM_BITS(macbits), xtsblocks);
1341                 else if (ctr_mode == TFC_MODE_ECB) tf_ecb_decrypt(key, tmpdata, macvrfy, TF_FROM_BITS(macbits));
1342                 else if (ctr_mode == TFC_MODE_CBC) tf_cbc_decrypt(key, ctr, tmpdata, macvrfy, TF_FROM_BITS(macbits));
1343
1344                 if (!memcmp(tmpdata, macresult, TF_FROM_BITS(macbits))) {
1345                         if (quiet == NO) {
1346                                 tfc_esay("%s: signature is good", tfc_format_pid(progname));
1347                                 if (verbose) {
1348                                         if (do_outfmt == TFC_OUTFMT_B64) tfc_printbase64(stderr, macresult, TF_FROM_BITS(macbits), YES);
1349                                         else mehexdump(macresult, TF_FROM_BITS(macbits), TF_FROM_BITS(macbits), YES);
1350                                 }
1351                         }
1352                         if (do_mac == TFC_MAC_JUST_VRFY2) {
1353                                 if (verbose) tfc_esay("%s: -u: MAC signature is valid, proceeding with decrypting it again", tfc_format_pid(progname));
1354                                 maxlen = total_processed_src - SKEIN_DIGEST_SIZE;
1355                                 do_mac = TFC_MAC_DROP2;
1356                                 goto _decrypt_again_vrfy2;
1357                         }
1358                 }
1359                 else {
1360                         if (quiet == NO) {
1361                                 tfc_esay("%s: signature is BAD: "
1362                                 "wrong password, key, mode, or file is not signed", tfc_format_pid(progname));
1363                                 if (do_mac == TFC_MAC_JUST_VRFY2) tfc_esay("%s: -u: MAC signature is invalid, not decrypting it again", tfc_format_pid(progname));
1364                         }
1365                         exitcode = 1;
1366                 }
1367
1368 _shortmac:      memset(macvrfy, 0, sizeof(macvrfy));
1369                 memset(macresult, 0, sizeof(macresult));
1370                 memset(tmpdata, 0, sizeof(tmpdata));
1371         }
1372         else if (do_mac == TFC_MAC_SIGN) {
1373                 skein_final(macresult, &sk);
1374
1375                 if (ctr_mode == TFC_MODE_CTR) tf_ctr_crypt(key, ctr, tmpdata, macresult, TF_FROM_BITS(macbits));
1376                 else if (ctr_mode == TFC_MODE_STREAM) tf_stream_crypt(&tfe, tmpdata, macresult, TF_FROM_BITS(macbits));
1377                 else if (ctr_mode == TFC_MODE_XTS) tf_xts_encrypt(key, xtskey, ctr, tmpdata, macresult, TF_FROM_BITS(macbits), xtsblocks);
1378                 else if (ctr_mode == TFC_MODE_ECB) tf_ecb_encrypt(key, tmpdata, macresult, TF_FROM_BITS(macbits));
1379                 else if (ctr_mode == TFC_MODE_CBC) tf_cbc_encrypt(key, ctr, tmpdata, macresult, TF_FROM_BITS(macbits));
1380                 memset(macresult, 0, sizeof(macresult));
1381
1382                 if (!do_mac_file) {
1383                         pblk = tmpdata;
1384                         lio = lrem = TF_FROM_BITS(macbits);
1385                         ldone = 0;
1386 _macwagain:             lio = xwrite(dfd, pblk, lrem);
1387                         if (lio != NOSIZE) ldone += lio;
1388                         else xerror(NO, NO, NO, "%s", dstfname);
1389                         if (do_fsync && fsync(dfd) == -1) xerror(NO, NO, NO, "%s", dstfname);
1390                         if (lio < lrem) {
1391                                 pblk += lio;
1392                                 lrem -= lio;
1393                                 goto _macwagain;
1394                         }
1395                         total_written_dst += ldone;
1396                         total_processed_dst += ldone;
1397                         delta_processed += ldone;
1398                 }
1399                 else {
1400                         int mfd;
1401
1402                         if (!strcmp(do_mac_file, "-")) mfd = 1;
1403                         else mfd = xopen(do_mac_file, O_WRONLY | O_CREAT | O_LARGEFILE | write_flags);
1404                         if (do_outfmt == TFC_OUTFMT_B64) {
1405                                 memcpy(macvrfy, tmpdata, TF_FROM_BITS(macbits));
1406                                 memset(tmpdata, 0, TFC_TMPSIZE);
1407                                 memcpy(tmpdata, TFC_ASCII_TFC_MAC_FOURCC, TFC_ASCII_TFC_MAC_FOURCC_LEN);
1408                                 base64_encode((char *)tmpdata+TFC_ASCII_TFC_MAC_FOURCC_LEN, (char *)macvrfy, TF_FROM_BITS(macbits));
1409                                 lrem = strnlen((char *)tmpdata, sizeof(tmpdata));
1410                                 if (lrem) {
1411                                         tmpdata[lrem] = '\n';
1412                                         lrem++;
1413                                 }
1414                                 lio = xwrite(mfd, tmpdata, lrem);
1415                         }
1416                         else lio = xwrite(mfd, tmpdata, TF_FROM_BITS(macbits));
1417                         if (lio == NOSIZE) xerror(NO, NO, YES, "%s", do_mac_file);
1418                         if (do_fsync && fsync(mfd) == -1) xerror(NO, NO, YES, "%s", do_mac_file);
1419                         xclose(mfd);
1420                 }
1421
1422                 memset(macvrfy, 0, sizeof(macvrfy));
1423                 memset(macresult, 0, sizeof(macresult));
1424                 memset(tmpdata, 0, sizeof(tmpdata));
1425         }
1426         else if (do_mac == TFC_MAC_DROP2) total_processed_src += SKEIN_DIGEST_SIZE;
1427
1428         if (verbose || status_timer || (do_stop == YES && quiet == NO)) print_crypt_status(0);
1429
1430         xexit(exitcode);
1431         return -1;
1432 }