2 * tfcrypt -- high security Threefish encryption tool.
4 * tfcrypt is copyrighted:
5 * Copyright (C) 2012-2018 Andrey Rys. All rights reserved.
7 * tfcrypt is licensed to you under the terms of std. MIT/X11 license:
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:
17 * The above copyright notice and this permission notice shall be
18 * included in all copies or substantial portions of the Software.
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.
31 static int getps_filter(struct getpasswd_state *getps, char chr, size_t pos)
34 getps->retn = ((size_t)-2);
40 static int getps_hex_filter(struct getpasswd_state *getps, char chr, size_t pos)
43 getps->retn = ((size_t)-2);
46 if (chr >= '0' && chr <= '9') return 1;
47 if (chr >= 'a' && chr <= 'f') return 1;
48 if (chr >= 'A' && chr <= 'F') return 1;
49 if (chr == '\x7f' || chr == '\x08'
50 || chr == '\x15' || chr == '\x17') return 1;
54 int main(int argc, char **argv)
58 char *s, *d, *t, *stoi;
61 progname = basename(argv[0]);
63 if (!isatty(2)) do_statline_dynamic = NO;
66 while ((c = getopt(argc, argv, "s:aU:C:r:K:t:TPkzxc:l:qedn:vV:pwE:O:S:AmM:R:Z:WHD:")) != -1) {
75 if (!strcasecmp(optarg, "show"))
76 counter_opt = TFC_CTR_SHOW;
77 else if (!strcasecmp(optarg, "head"))
78 counter_opt = TFC_CTR_HEAD;
79 else if (!strcasecmp(optarg, "rand"))
80 counter_opt = TFC_CTR_RAND;
81 else counter_file = sksum_hashlist_file = optarg;
84 if (!strcasecmp(optarg, "ctr"))
85 ctr_mode = TFC_MODE_CTR;
86 else if (!strcasecmp(optarg, "stream"))
87 ctr_mode = TFC_MODE_STREAM;
88 else if (!strcasecmp(optarg, "cbc"))
89 ctr_mode = TFC_MODE_CBC;
90 else if (!strcasecmp(optarg, "ecb"))
91 ctr_mode = TFC_MODE_ECB;
92 else if (!strcasecmp(optarg, "xts"))
93 ctr_mode = TFC_MODE_XTS;
94 else if (!strcasecmp(optarg, "ocb"))
95 ctr_mode = TFC_MODE_OCB;
96 else xerror(NO, YES, YES, "%s: invalid mode of operation", optarg);
99 do_edcrypt = TFC_DO_PLAIN;
101 ctr_mode = TFC_MODE_PLAIN;
104 do_edcrypt = TFC_DO_ENCRYPT;
107 do_edcrypt = TFC_DO_DECRYPT;
110 macbits = strtoul(optarg, &stoi, 10);
111 if (macbits == 0 || !str_empty(stoi) || macbits < 8
112 || macbits > TF_MAX_BITS || macbits % 8)
113 xerror(NO, YES, YES, "%s: invalid MAC bits setting", optarg);
116 nr_turns = sksum_turns = strtoul(optarg, &stoi, 10);
117 if (!str_empty(stoi)) xerror(NO, YES, YES, "%s: invalid number of turns", optarg);
120 if (!strcasecmp(optarg, "key"))
121 mackey_opt = TFC_MACKEY_RAWKEY;
122 else if (!strcasecmp(optarg, "pwd"))
123 mackey_opt = TFC_MACKEY_PASSWORD;
125 mackey_opt = TFC_MACKEY_FILE;
133 rawkey = TFC_RAWKEY_KEYFILE;
136 rawkey = TFC_RAWKEY_ASKSTR;
139 rawkey = TFC_RAWKEY_ASKHEX;
153 if (maxlen != NOFSIZE) break;
155 maxlen = tfc_humanfsize(optarg, &stoi);
156 if (!str_empty(stoi)) {
157 maxlen = tfc_fnamesize(optarg, YES);
158 maxlen = tfc_modifysize(maxlen, strchr(optarg, ':'));
159 if (maxlen == NOFSIZE) xerror(NO, YES, YES,
160 "%s: invalid count value", optarg);
162 else maxlen = tfc_modifysize(maxlen, strchr(optarg, ':'));
163 if (counter_opt == TFC_CTR_HEAD)
164 maxlen += TF_BLOCK_SIZE;
167 overwrite_source = YES;
170 if (!strcmp(optarg, "xall")) {
171 catch_all_errors = YES;
174 if (!strcmp(optarg, "exit"))
175 error_action = TFC_ERRACT_EXIT;
176 else if (!strncmp(optarg, "cont", 4))
177 error_action = TFC_ERRACT_CONT;
178 else if (!strcmp(optarg, "sync"))
179 error_action = TFC_ERRACT_SYNC;
180 else xerror(NO, YES, YES, "invalid error action %s specified", optarg);
183 s = d = optarg; t = NULL;
184 while ((s = strtok_r(d, ",", &t))) {
186 if (!strcmp(s, "sync"))
187 write_flags |= O_SYNC;
188 else if (!strcmp(s, "trunc"))
189 write_flags |= O_TRUNC;
190 else if (!strcmp(s, "fsync"))
192 else if (!strcmp(s, "pad"))
194 else if (!strcmp(s, "xtime"))
195 do_preserve_time = YES;
196 else if (!strcmp(s, "gibsize"))
197 do_stats_in_gibs = YES;
198 else if (!strcmp(s, "plainstats"))
199 do_statline_dynamic = NO;
200 else if (!strcmp(s, "statless"))
202 else if (!strcmp(s, "norepeat"))
204 else if (!strncmp(s, "prompt", 6) && *(s+6) == '=')
206 else if (!strncmp(s, "macprompt", 9) && *(s+9) == '=')
207 mac_pw_prompt = s+10;
208 else if (!strcmp(s, "shorthex"))
209 do_full_hexdump = NO;
210 else if (!strncmp(s, "iobs", 4) && *(s+4) == '=') {
212 blksize = (size_t)tfc_humanfsize(s, &stoi);
213 if (!str_empty(stoi)) {
214 blksize = (size_t)tfc_fnamesize(s, YES);
215 blksize = (size_t)tfc_modifysize((tfc_fsize)blksize, strchr(s, ':'));
216 if (blksize == NOSIZE) xerror(NO, YES, YES,
217 "%s: invalid block size value", s);
219 else blksize = (size_t)tfc_modifysize((tfc_fsize)blksize, strchr(s, ':'));
220 if (blksize < TF_BLOCK_SIZE) xerror(NO, YES, YES,
221 "%s: block size is lesser than TF_BLOCK_SIZE (%u bytes)", s, TFC_U(TF_BLOCK_SIZE));
222 if (blksize > TFC_BLKSIZE) xerror(NO, YES, YES,
223 "%s: block size exceeds %u bytes",
224 s, TFC_U(TFC_BLKSIZE));
226 else if (!strncmp(s, "xtsblocks", 9) && *(s+9) == '=') {
228 xtsblocks = (size_t)tfc_humanfsize(s, &stoi);
229 if (!str_empty(stoi)) {
230 xtsblocks = (size_t)tfc_fnamesize(s, YES);
231 xtsblocks = (size_t)tfc_modifysize((tfc_fsize)xtsblocks, strchr(s, ':'));
232 if (xtsblocks == NOSIZE) xerror(NO, YES, YES,
233 "%s: invalid blocks per xts block value", s);
235 else xtsblocks = (size_t)tfc_modifysize((tfc_fsize)xtsblocks, strchr(s, ':'));
236 if (TFC_BLKSIZE % xtsblocks) xerror(NO, YES, YES,
237 "%s: nr of blocks per xts block is not round to %u bytes",
238 s, TFC_U(TFC_BLKSIZE));
239 if ((xtsblocks * TF_BLOCK_SIZE) > TFC_BLKSIZE) xerror(NO, YES, YES,
240 "%s: nr of blocks per xts block exceeds %u bytes",
241 s, TFC_U(TFC_BLKSIZE));
243 else if (!strncmp(s, "iseek", 5) && *(s+5) == '=') {
245 iseek = tfc_humanfsize(s, &stoi);
246 if (!str_empty(stoi)) {
247 iseek = tfc_fnamesize(s, YES);
248 iseek = tfc_modifysize(iseek, strchr(s, ':'));
249 if (iseek == NOFSIZE) xerror(NO, YES, YES,
250 "%s: invalid iseek value", s);
252 else iseek = tfc_modifysize(iseek, strchr(s, ':'));
253 if (ctr_mode != TFC_MODE_PLAIN && iseek % TF_BLOCK_SIZE)
255 "%s: not round to TF block size "
257 s, TFC_U(TF_BLOCK_SIZE));
258 iseek_blocks = iseek / TF_BLOCK_SIZE;
260 else if (!strncmp(s, "ixseek", 6) && *(s+6) == '=') {
262 iseek = tfc_humanfsize(s, &stoi);
263 if (!str_empty(stoi)) {
264 iseek = tfc_fnamesize(s, YES);
265 iseek = tfc_modifysize(iseek, strchr(s, ':'));
266 if (iseek == NOFSIZE) xerror(NO, YES, YES,
267 "%s: invalid ixseek value", s);
269 else iseek = tfc_modifysize(iseek, strchr(s, ':'));
271 else if (!strncmp(s, "ictr", 4) && *(s+4) == '=') {
273 iseek_blocks = tfc_humanfsize(s, &stoi);
274 if (!str_empty(stoi)) {
275 iseek_blocks = tfc_fnamesize(s, YES);
276 if (iseek_blocks == NOFSIZE)
278 "%s: invalid ictr value", s);
279 iseek_blocks /= TF_BLOCK_SIZE;
280 iseek_blocks = tfc_modifysize(iseek_blocks, strchr(s, ':'));
282 else iseek_blocks = tfc_modifysize(iseek_blocks, strchr(s, ':'));
284 else if (!strncmp(s, "ixctr", 5) && *(s+5) == '=') {
286 iseek_blocks = tfc_humanfsize(s, &stoi);
287 if (!str_empty(stoi)) {
288 iseek_blocks = tfc_fnamesize(s, YES);
289 iseek_blocks = tfc_modifysize(iseek_blocks, strchr(s, ':'));
290 if (iseek_blocks == NOFSIZE)
292 "%s: invalid ixctr value", s);
294 else iseek_blocks = tfc_modifysize(iseek_blocks, strchr(s, ':'));
295 if (iseek_blocks % TF_BLOCK_SIZE)
297 "%s: not round to TF block size "
298 "of %u bytes", s, TFC_U(TF_BLOCK_SIZE));
299 iseek_blocks /= TF_BLOCK_SIZE;
301 else if (!strncmp(s, "oseek", 5) && *(s+5) == '=') {
303 oseek = tfc_humanfsize(s, &stoi);
304 if (!str_empty(stoi)) {
305 oseek = tfc_fnamesize(s, YES);
306 oseek = tfc_modifysize(oseek, strchr(s, ':'));
307 if (oseek == NOFSIZE) xerror(NO, YES, YES,
308 "%s: invalid oseek value", s);
310 else oseek = tfc_modifysize(oseek, strchr(s, ':'));
312 else if (!strncmp(s, "count", 5) && *(s+5) == '=') {
314 maxlen = tfc_humanfsize(s, &stoi);
315 if (!str_empty(stoi)) {
316 maxlen = tfc_fnamesize(s, YES);
317 maxlen = tfc_modifysize(maxlen, strchr(s, ':'));
318 if (maxlen == NOFSIZE) xerror(NO, YES, YES,
319 "%s: invalid count value", s);
321 else maxlen = tfc_modifysize(maxlen, strchr(s, ':'));
322 if (counter_opt == TFC_CTR_HEAD)
323 maxlen += TF_BLOCK_SIZE;
325 else if (!strncmp(s, "xkey", 4) && *(s+4) == '=') {
327 maxkeylen = tfc_humanfsize(s, &stoi);
328 if (!str_empty(stoi)) {
329 maxkeylen = (size_t)tfc_fnamesize(s, YES);
330 maxkeylen = (size_t)tfc_modifysize((tfc_fsize)maxkeylen, strchr(s, ':'));
331 if (maxkeylen == NOSIZE)
333 "%s: invalid key length value", s);
335 else maxkeylen = (size_t)tfc_modifysize((tfc_fsize)maxkeylen, strchr(s, ':'));
337 else if (!strncmp(s, "xctr", 4) && *(s+4) == '=') {
339 ctrsz = tfc_humanfsize(s, &stoi);
340 if (!str_empty(stoi)) {
341 ctrsz = (size_t)tfc_fnamesize(s, YES);
342 ctrsz = (size_t)tfc_modifysize((tfc_fsize)ctrsz, strchr(s, ':'));
345 "%s: invalid counter length value", s);
347 else ctrsz = (size_t)tfc_modifysize((tfc_fsize)ctrsz, strchr(s, ':'));
348 if (ctrsz > TF_BLOCK_SIZE)
349 xerror(NO, YES, YES, "%s: counter size cannot exceed TF block size", s);
351 else xerror(NO, YES, YES, "invalid option %s", s);
355 do_mac = TFC_MAC_SIGN;
356 if (strcasecmp(optarg, "mac") != 0)
357 do_mac_file = optarg;
360 do_mac = TFC_MAC_VRFY;
361 if (!strcasecmp(optarg, "drop"))
362 do_mac = TFC_MAC_DROP;
363 else if (strcasecmp(optarg, "mac") != 0)
364 do_mac_file = optarg;
367 if (do_mac != TFC_MAC_VRFY)
368 xerror(NO, YES, YES, "signature source was not specified");
369 do_mac = TFC_MAC_JUST_VRFY;
373 if (maxlen != NOFSIZE) {
374 if (c == 'Z') genzero_nr_bytes = maxlen;
375 else genrandom_nr_bytes = maxlen;
379 if (!strcasecmp(optarg, "cbs"))
381 else if (!strcasecmp(optarg, "ks"))
382 t = TF_FROM_BITS(TFC_KEY_BITS);
383 else if (!strcasecmp(optarg, "xks"))
384 t = TF_FROM_BITS(TFC_KEY_BITS) * 2;
385 else if (!strcasecmp(optarg, "iobs"))
388 t = tfc_humanfsize(optarg, &stoi);
389 if (!str_empty(stoi)) {
390 t = tfc_fnamesize(optarg, NO);
391 t = tfc_modifysize(t, strchr(optarg, ':'));
393 else t = tfc_modifysize(t, strchr(optarg, ':'));
395 if (c == 'Z') genzero_nr_bytes = maxlen = t;
396 else genrandom_nr_bytes = maxlen = t;
400 do_preserve_time = YES;
403 do_outfmt = TFC_OUTFMT_B64;
406 do_outfmt = TFC_OUTFMT_RAW;
409 do_outfmt = TFC_OUTFMT_HEX;
420 td = strtod(optarg, &stoi);
421 status_timer = TFC_DTOUSECS(td);
422 if (status_timer <= TFC_DTOUSECS(0) || !str_empty(stoi)) status_timer = 0;
430 if (!strcmp(progname, "tfbench")) {
431 if (!*(argv+optind)) usage();
433 td = strtod(*(argv+optind), &stoi);
434 if (td <= TFC_DTOUSECS(0) || !str_empty(stoi))
436 "%s: invalid benchmark time in seconds", *(argv+optind));
437 bench_timer = TFC_DTOUSECS(td);
438 do_benchmark(bench_timer, td);
440 if (genrandom_nr_bytes) {
441 ctr_mode = TFC_MODE_STREAM;
442 do_edcrypt = TFC_DO_ENCRYPT;
443 gen_write_bytes(*(argv+optind), oseek, genrandom_nr_bytes);
445 if (genzero_nr_bytes) {
446 ctr_mode = TFC_MODE_PLAIN;
447 do_edcrypt = TFC_DO_PLAIN;
448 gen_write_bytes(*(argv+optind), oseek, genzero_nr_bytes);
451 if (rawkey && password)
452 xerror(NO, YES, YES, "Cannot use rawkey and hashing password!");
453 if (do_edcrypt == TFC_DO_ENCRYPT && do_mac >= TFC_MAC_VRFY)
454 xerror(NO, YES, YES, "Cannot encrypt and verify signature!");
455 if (do_edcrypt == TFC_DO_DECRYPT && do_mac == TFC_MAC_SIGN)
456 xerror(NO, YES, YES, "Cannot decrypt and calculate signature!");
457 if (do_edcrypt == TFC_DO_DECRYPT && counter_opt == TFC_CTR_RAND)
458 xerror(NO, YES, YES, "Cannot decrypt and embed a generated CTR into file!");
459 if (do_edcrypt == TFC_DO_ENCRYPT && counter_opt == TFC_CTR_HEAD)
460 xerror(NO, YES, YES, "Cannot encrypt and read CTR from source!");
461 if (overwrite_source && counter_opt == TFC_CTR_RAND)
462 xerror(NO, YES, YES, "Cannot embed a CTR into file when overwriting it!");
463 if (tweakf && do_tfcrypt1 == NO)
464 xerror(NO, YES, YES, "Use -T with -t tweakfile to enable old tfcrypt mode!");
465 if (ctr_mode == TFC_MODE_PLAIN
466 && (do_edcrypt || do_mac || rawkey
467 || mackey_opt || counter_opt || counter_file))
468 xerror(NO, YES, YES, "Encryption facility is disabled when in plain IO mode.");
476 memset(tfc_salt, 0, TFC_MAX_SALT);
478 if (!strcasecmp(saltf, "disable")) goto _nosalt;
480 if (!strcmp(saltf, "-")) saltfd = 0;
481 else saltfd = open(saltf, O_RDONLY | O_LARGEFILE);
482 if (saltfd == -1) xerror(NO, NO, YES, "%s", saltf);
483 lio = read(saltfd, tfc_salt, TFC_MAX_SALT - TF_FROM_BITS(TFC_KEY_BITS));
484 if (lio == NOSIZE) xerror(NO, NO, YES, "%s", saltf);
490 if (mackey_opt == TFC_MACKEY_FILE && mackeyf) {
494 if (!strcmp(mackeyf, "-")) mkfd = 0;
495 else mkfd = open(mackeyf, O_RDONLY | O_LARGEFILE);
496 if (mkfd == -1) xerror(NO, NO, YES, "%s", mackeyf);
498 skein_init(&sk, TFC_KEY_BITS);
505 lrem = lblock = sizeof(tmpdata);
506 _mkragain: lio = read(mkfd, pblk, lrem);
507 if (lio == 0) do_stop = YES;
508 if (lio != NOSIZE) ldone += lio;
510 if (errno != EIO && catch_all_errors != YES)
511 xerror(NO, NO, NO, "%s", mackeyf);
512 switch (error_action) {
513 case TFC_ERRACT_CONT: xerror(YES, NO, NO, "%s", mackeyf); goto _mkragain; break;
514 case TFC_ERRACT_SYNC:
515 xerror(YES, NO, NO, "%s", mackeyf);
516 lio = ldone = lrem = lblock;
517 memset(tmpdata, 0, lio);
518 lseek(mkfd, lio, SEEK_CUR);
520 default: xerror(NO, NO, NO, "%s", mackeyf); break;
523 if (lio && lio < lrem) {
529 skein_update(&sk, tmpdata, ldone);
532 skein_final(mackey, &sk);
536 else if (mackey_opt == TFC_MACKEY_PASSWORD) {
537 memset(&getps, 0, sizeof(struct getpasswd_state));
538 getps.fd = getps.efd = -1;
539 getps.passwd = pwdask;
540 getps.pwlen = sizeof(pwdask)-1;
541 getps.echo = mac_pw_prompt ? mac_pw_prompt : "Enter MAC password: ";
542 getps.charfilter = getps_filter;
543 getps.maskchar = 'x';
544 getps.flags = GETP_WAITFILL;
545 n = xgetpasswd(&getps);
546 if (n == NOSIZE) xerror(NO, NO, YES, "getting MAC password");
547 if (n == ((size_t)-2)) xexit(1);
548 skein(mackey, TF_MAX_BITS, NULL, pwdask, n);
550 skein(tmpdata, TF_MAX_BITS, NULL, mackey, TF_FROM_BITS(TF_MAX_BITS));
551 xor_shrink(tmpdata+TF_FROM_BITS(TF_MAX_BITS), TF_SIZE_UNIT, tmpdata, TF_FROM_BITS(TF_MAX_BITS));
552 tfc_nfsay(stderr, "MAC password hint: ");
553 mehexdump(tmpdata+TF_FROM_BITS(TF_MAX_BITS), TF_SIZE_UNIT, TF_SIZE_UNIT, 1);
554 memset(tmpdata, 0, sizeof(tmpdata));
559 if ((strlen(progname) <= 9)
560 && ((!strcmp(progname, "sksum"))
561 || ((!memcmp(progname, "sk", 2))
562 && (!memcmp(progname+3, "sum", 3)
563 || !memcmp(progname+4, "sum", 3)
564 || !memcmp(progname+5, "sum", 3)
565 || !memcmp(progname+6, "sum", 3)))))
566 do_sksum(progname, argv+optind);
567 if (!strcmp(progname, "tfbase64")) do_edbase64(argv+optind);
572 if (password || rawkey > TFC_RAWKEY_KEYFILE) goto _nokeyfd;
573 if (!strcmp(argv[idx], "-")) kfd = 0;
574 else kfd = open(argv[idx], O_RDONLY | O_LARGEFILE);
575 if (kfd == -1) xerror(NO, NO, YES, "%s", argv[idx]);
577 lio = strnlen(argv[idx], PATH_MAX);
578 memset(argv[idx], '*', lio);
585 if (do_tfcrypt1 == YES && tweakf) {
588 if (!strcmp(tweakf, "-")) twfd = 0;
589 else twfd = open(tweakf, O_RDONLY | O_LARGEFILE);
590 if (twfd == -1) xerror(NO, NO, YES, "%s", tweakf);
591 lio = ldone = read(twfd, key+TF_FROM_BITS(TF_MAX_BITS)+TF_SIZE_UNIT, 2*TF_SIZE_UNIT);
592 if (lio == NOSIZE) xerror(NO, NO, YES, "%s", tweakf);
593 if (ldone < 2*TF_SIZE_UNIT)
594 xerror(NO, NO, YES, "%s: %zu bytes tweak required", tweakf, 2*TF_SIZE_UNIT);
601 if (!strcmp(argv[idx], "-") && kfd) sfd = 0;
603 sfd = open(argv[idx], O_RDONLY | O_LARGEFILE);
604 if (do_preserve_time) if (fstat(sfd, &s_stat) == -1)
605 xerror(YES, NO, YES, "stat(%s)", argv[idx]);
607 if (sfd == -1) xerror(NO, NO, YES, "%s", argv[idx]);
609 if (do_edcrypt == TFC_DO_DECRYPT && do_mac != NO && maxlen != NOFSIZE) {
610 if (verbose) tfc_esay("%s: disabling signature verification on "
611 "requested partial decryption.", progname);
615 if ((do_mac >= TFC_MAC_VRFY || do_mac == TFC_MAC_DROP) && !do_mac_file) {
616 maxlen = tfc_fdsize(sfd);
617 if (maxlen == NOFSIZE)
619 "Cannot verify embedded MAC with non-seekable source!");
620 maxlen -= TF_FROM_BITS(macbits);
622 srcfname = argv[idx];
626 if (!do_mac_file && (do_mac >= TFC_MAC_VRFY && sfd == 0))
627 xerror(NO, YES, YES, "Cannot verify embedded MAC with non-seekable source!");
629 if (ctrsz == NOSIZE) ctrsz = TF_BLOCK_SIZE;
630 if (ctrsz > TF_BLOCK_SIZE) ctrsz = TF_BLOCK_SIZE;
632 if (ctr_mode == TFC_MODE_ECB) goto _ctrskip1;
637 if (!strcmp(counter_file, "-")) ctrfd = 0;
638 else ctrfd = open(counter_file, O_RDONLY | O_LARGEFILE);
639 if (ctrfd == -1) xerror(NO, NO, YES, "%s", counter_file);
640 lio = read(ctrfd, ctr, ctrsz);
641 if (lio == NOSIZE) xerror(NO, NO, YES, "%s", counter_file);
642 if (lio < ctrsz) xerror(NO, YES, YES, "counter file is too small (%zu)!", lio);
645 else if (counter_opt == TFC_CTR_HEAD) {
648 lrem = lblock = ctrsz;
649 _ctrragain: lio = read(sfd, pblk, lrem);
650 if (lio != NOSIZE) ldone += lio;
652 if (errno != EIO && catch_all_errors != YES)
653 xerror(NO, NO, NO, "%s", srcfname);
654 switch (error_action) {
655 case TFC_ERRACT_CONT: xerror(YES, NO, NO, "%s", srcfname); goto _ctrragain; break;
656 case TFC_ERRACT_SYNC:
657 xerror(YES, NO, NO, "%s", srcfname);
658 lio = ldone = lrem = lblock;
660 lseek(sfd, lio, SEEK_CUR);
662 default: xerror(NO, NO, NO, "%s", srcfname); break;
665 if (lio && lio < lrem) {
670 total_processed_src += ldone;
675 if (counter_opt == TFC_CTR_HEAD && ctr_mode != TFC_MODE_ECB)
677 if (lseek(sfd, iseek, SEEK_SET) == -1)
678 xerror(YES, NO, NO, "%s: seek failed", srcfname);
681 if (ctr_mode == TFC_MODE_PLAIN) goto _plain;
683 if (verbose) tfc_esay("%s: hashing password", progname);
685 if (rawkey == TFC_RAWKEY_KEYFILE) {
686 tfc_yesno xtskeyset = NO;
690 lrem = lblock = TF_FROM_BITS(TFC_KEY_BITS);
691 _keyragain: lio = read(kfd, pblk, lrem);
692 if (lio != NOSIZE) ldone += lio;
694 if (errno != EIO && catch_all_errors != YES)
695 xerror(NO, NO, NO, "reading key");
696 switch (error_action) {
697 case TFC_ERRACT_CONT: xerror(YES, NO, NO, "reading key"); goto _keyragain; break;
698 case TFC_ERRACT_SYNC:
699 xerror(YES, NO, NO, "reading key");
700 lio = ldone = lrem = lblock;
702 lseek(kfd, lio, SEEK_CUR);
704 default: xerror(NO, NO, NO, "reading key"); break;
707 if (lio && lio < lrem) {
712 if (ldone < lblock) xerror(NO, YES, YES, "rawkey too small! (%zu)", ldone);
714 if (ctr_mode == TFC_MODE_XTS) {
715 if (xtskeyset == NO) {
722 else if (rawkey == TFC_RAWKEY_ASKSTR) {
723 tfc_yesno xtskeyset = NO;
725 pblk = key; n = sizeof(key);
726 _xts2keyaskstr: memset(&getps, 0, sizeof(struct getpasswd_state));
727 getps.fd = getps.efd = -1;
728 getps.passwd = (char *)pblk;
730 getps.echo = pw_prompt ? pw_prompt : "Enter rawkey (str): ";
731 getps.charfilter = getps_filter;
732 getps.maskchar = 'x';
733 getps.flags = GETP_WAITFILL;
734 n = xgetpasswd(&getps);
735 if (n == NOSIZE) xerror(NO, NO, YES, "getting string rawkey");
736 if (n == ((size_t)-2)) xexit(1);
737 if (ctr_mode == TFC_MODE_XTS) {
738 if (xtskeyset == NO) {
739 pblk = xtskey; n = sizeof(xtskey);
745 else if (rawkey == TFC_RAWKEY_ASKHEX) {
746 tfc_yesno xtskeyset = NO;
750 memset(&getps, 0, sizeof(struct getpasswd_state));
751 getps.fd = getps.efd = -1;
752 getps.passwd = pwdask;
753 getps.pwlen = (TF_FROM_BITS(TFC_KEY_BITS)*2);
754 getps.echo = pw_prompt ? pw_prompt : "Enter rawkey (hex): ";
755 getps.charfilter = getps_hex_filter;
756 getps.maskchar = 'x';
757 getps.flags = GETP_WAITFILL;
758 n = xgetpasswd(&getps);
759 if (n == NOSIZE) xerror(NO, NO, YES, "getting hex rawkey");
760 if (n == ((size_t)-2)) xexit(1);
762 tfc_esay("Please input even number of hex digits!");
763 goto _rawkey_hex_again;
765 hex2bin(pblk, pwdask);
766 memset(pwdask, 0, sizeof(pwdask));
767 if (ctr_mode == TFC_MODE_XTS) {
768 if (xtskeyset == NO) {
771 goto _rawkey_hex_again;
776 _pwdagain: memset(&getps, 0, sizeof(struct getpasswd_state));
777 getps.fd = getps.efd = -1;
778 getps.passwd = pwdask;
779 getps.pwlen = sizeof(pwdask)-1;
780 getps.echo = pw_prompt ? pw_prompt : "Enter password: ";
781 getps.charfilter = getps_filter;
782 getps.maskchar = 'x';
783 getps.flags = GETP_WAITFILL;
784 n = xgetpasswd(&getps);
785 if (n == NOSIZE) xerror(NO, NO, YES, "getting password");
786 if (n == ((size_t)-2)) xexit(1);
787 if (do_edcrypt == TFC_DO_ENCRYPT && no_repeat == NO) {
788 getps.fd = getps.efd = -1;
789 getps.passwd = pwdagain;
790 getps.pwlen = sizeof(pwdagain)-1;
791 getps.echo = "Enter it again: ";
792 getps.flags = GETP_WAITFILL;
793 n = xgetpasswd(&getps);
794 if (n == NOSIZE) xerror(NO, NO, YES, "getting password again");
795 if (n == ((size_t)-2)) xexit(1);
796 if (strncmp(pwdask, pwdagain, sizeof(pwdagain)-1) != 0) {
797 tfc_esay("Passwords are different, try again");
801 skein(key, TFC_KEY_BITS, mackey_opt ? mackey : NULL, pwdask, n);
802 memset(pwdask, 0, sizeof(pwdask));
803 memset(pwdagain, 0, sizeof(pwdagain));
806 if (skeinfd(key, TFC_KEY_BITS, mackey_opt ? mackey : NULL, kfd, maxkeylen) != YES)
807 xerror(NO, NO, YES, "hashing key");
811 if (tfc_saltsz > 0) {
812 memcpy(tfc_salt+tfc_saltsz, key, TF_FROM_BITS(TFC_KEY_BITS));
813 skein(key, TFC_KEY_BITS, mackey_opt ? mackey : NULL, tfc_salt, tfc_saltsz+TF_FROM_BITS(TFC_KEY_BITS));
815 if (nr_turns > 1) for (x = 0; x < nr_turns; x++)
816 skein(key, TFC_KEY_BITS, mackey_opt ? mackey : NULL, key, TF_FROM_BITS(TFC_KEY_BITS));
817 memset(tfc_salt, 0, TFC_MAX_SALT);
820 if (ctr_mode == TFC_MODE_XTS && rawkey == NO) {
821 skein(xtskey, TF_NR_KEY_BITS, mackey_opt ? mackey : NULL, key, TF_FROM_BITS(TFC_KEY_BITS));
826 tfc_yesno xtskeyset = NO;
829 if (!strcmp(genkeyf, "-")) krfd = 1;
830 else krfd = open(genkeyf, O_WRONLY | O_CREAT | O_LARGEFILE | write_flags, 0666);
831 if (krfd == -1) xerror(NO, NO, YES, "%s", genkeyf);
832 _xts2genkey: if (write(krfd, pblk, TF_FROM_BITS(TFC_KEY_BITS)) == -1) xerror(NO, NO, YES, "%s", genkeyf);
833 if (do_fsync && fsync(krfd) == -1) xerror(NO, NO, YES, "%s", genkeyf);
834 if (verbose && xtskeyset == NO) {
835 tfc_esay("%s: password hashing done", progname);
836 tfc_esay("%s: rawkey written to %s.", progname, genkeyf);
837 tfc_esay("%s: Have a nice day!", progname);
840 if (ctr_mode == TFC_MODE_XTS) {
841 if (xtskeyset == NO) {
853 if (iseek_blocks && (do_edcrypt == TFC_DO_DECRYPT && do_mac != NO)) {
854 if (verbose) tfc_esay("%s: disabling signature verification on "
855 "requested partial decryption.", progname);
860 if (mackey_opt == TFC_MACKEY_RAWKEY) skein(mackey, TF_MAX_BITS, key, key, TF_FROM_BITS(TFC_KEY_BITS));
861 if (ctr_mode < TFC_MODE_OCB) {
862 if (verbose) tfc_esay("%s: doing MAC calculation, processing speed "
863 "will be slower.", progname);
864 if (mackey_opt) skein_init_key(&sk, mackey, macbits);
865 else skein_init(&sk, macbits);
869 if (!counter_file && counter_opt <= TFC_CTR_SHOW && ctr_mode != TFC_MODE_ECB) {
870 skein(ctr, TF_TO_BITS(ctrsz), mackey_opt ? mackey : NULL, key, TF_FROM_BITS(TFC_KEY_BITS));
874 if (ctr_mode == TFC_MODE_XTS) tf_convkey(xtskey);
875 if (do_tfcrypt1 == YES) {
876 if (!tweakf) skein(key+TF_FROM_BITS(TF_MAX_BITS)+TF_SIZE_UNIT, 2*TF_UNIT_BITS, NULL, key, TF_FROM_BITS(TFC_KEY_BITS));
877 tf_key_tweak_compat(key);
879 if (ctr_mode == TFC_MODE_STREAM) tfe_init_iv(&tfe, key, ctr);
880 if (ctr_mode == TFC_MODE_ECB) goto _ctrskip2;
881 tfc_data_to_words64(&iseek_blocks, sizeof(iseek_blocks));
882 tf_ctr_set(ctr, &iseek_blocks, sizeof(iseek_blocks));
884 switch (counter_opt) {
887 case TFC_OUTFMT_B64: tfc_printbase64(stderr, ctr, ctrsz, YES); break;
888 case TFC_OUTFMT_RAW: write(2, ctr, ctrsz); break;
889 case TFC_OUTFMT_HEX: mehexdump(ctr, ctrsz, ctrsz, YES); break;
892 case TFC_CTR_RAND: tfc_getrandom(ctr, ctrsz); break;
900 if (verbose) tfc_esay("%s: password hashing done", progname);
902 if (overwrite_source && srcfname) argv[idx] = srcfname;
906 if (!strcmp(argv[idx], "-")) dfd = 1;
907 else dfd = open(argv[idx], O_RDWR | O_LARGEFILE | write_flags, 0666);
909 dfd = open(argv[idx], O_WRONLY | O_CREAT | O_LARGEFILE | write_flags, 0666);
910 if (dfd == -1) xerror(NO, NO, YES, "%s", argv[idx]);
912 dstfname = argv[idx];
917 if (lseek(dfd, oseek, SEEK_SET) == -1)
918 xerror(YES, NO, NO, "%s: seek failed", dstfname);
921 for (x = 1; x < NSIG; x++) signal(x, SIG_IGN);
922 memset(&sigact, 0, sizeof(sigact));
923 sigact.sa_flags = SA_RESTART;
924 sigact.sa_handler = print_crypt_status;
925 sigaction(SIGUSR1, &sigact, NULL);
926 sigaction(SIGTSTP, &sigact, NULL);
927 sigaction(SIGALRM, &sigact, NULL);
928 if (status_timer) setup_next_alarm(status_timer);
929 sigact.sa_handler = change_status_width;
930 sigaction(SIGQUIT, &sigact, NULL);
931 sigact.sa_handler = change_status_timer;
932 sigaction(SIGUSR2, &sigact, NULL);
934 sigact.sa_handler = print_crypt_status;
935 sigaction(SIGINT, &sigact, NULL);
936 sigaction(SIGTERM, &sigact, NULL);
939 sigact.sa_handler = exit_sigterm;
940 sigaction(SIGINT, &sigact, NULL);
941 sigaction(SIGTERM, &sigact, NULL);
943 memset(&sigact, 0, sizeof(struct sigaction));
945 tfc_getcurtime(&delta_time);
948 if (counter_opt == TFC_CTR_RAND && ctr_mode != TFC_MODE_ECB) {
952 _ctrwagain: lio = write(dfd, pblk, lrem);
953 if (lio != NOSIZE) ldone += lio;
954 else xerror(NO, NO, NO, "%s", dstfname);
955 if (do_fsync && fsync(dfd) == -1) xerror(NO, NO, NO, "%s", dstfname);
961 total_processed_dst += ldone;
962 delta_processed += ldone;
971 lrem = lblock = blk_len_adj(maxlen, total_processed_src, blksize);
972 _ragain: lio = read(sfd, pblk, lrem);
973 if (lio == 0) do_stop = TFC_STOP_BEGAN;
974 if (lio != NOSIZE) ldone += lio;
976 if (errno != EIO && catch_all_errors != YES)
977 xerror(NO, NO, NO, "%s", srcfname);
978 switch (error_action) {
979 case TFC_ERRACT_CONT: xerror(YES, NO, NO, "%s", srcfname); goto _ragain; break;
980 case TFC_ERRACT_SYNC:
981 xerror(YES, NO, NO, "%s", srcfname);
982 lio = ldone = lrem = lblock;
983 memset(srcblk, 0, lio);
984 lseek(sfd, lio, SEEK_CUR);
986 default: xerror(NO, NO, NO, "%s", srcfname); break;
989 if (lio && lio < lrem) {
994 total_processed_src += ldone;
996 if (do_pad && (ldone % TF_BLOCK_SIZE)) {
998 ldone += (TF_BLOCK_SIZE - (ldone % TF_BLOCK_SIZE));
999 if (ldone > blksize) ldone = blksize;
1000 memset(srcblk+orig, 0, sizeof(srcblk)-orig);
1003 if (do_mac == TFC_MAC_SIGN && ctr_mode < TFC_MODE_OCB)
1004 skein_update(&sk, srcblk, ldone);
1006 if (ctr_mode == TFC_MODE_CTR) tf_ctr_crypt(key, ctr, dstblk, srcblk, ldone);
1007 else if (ctr_mode == TFC_MODE_STREAM) tf_stream_crypt(&tfe, dstblk, srcblk, ldone);
1008 else if (ctr_mode == TFC_MODE_XTS && do_edcrypt == TFC_DO_ENCRYPT)
1009 tf_xts_encrypt(key, xtskey, ctr, dstblk, srcblk, ldone, xtsblocks);
1010 else if (ctr_mode == TFC_MODE_XTS && do_edcrypt == TFC_DO_DECRYPT)
1011 tf_xts_decrypt(key, xtskey, ctr, dstblk, srcblk, ldone, xtsblocks);
1012 else if (ctr_mode == TFC_MODE_ECB && do_edcrypt == TFC_DO_ENCRYPT)
1013 tf_ecb_encrypt(key, dstblk, srcblk, ldone);
1014 else if (ctr_mode == TFC_MODE_ECB && do_edcrypt == TFC_DO_DECRYPT)
1015 tf_ecb_decrypt(key, dstblk, srcblk, ldone);
1016 else if (ctr_mode == TFC_MODE_CBC && do_edcrypt == TFC_DO_ENCRYPT)
1017 tf_cbc_encrypt(key, ctr, dstblk, srcblk, ldone);
1018 else if (ctr_mode == TFC_MODE_CBC && do_edcrypt == TFC_DO_DECRYPT)
1019 tf_cbc_decrypt(key, ctr, dstblk, srcblk, ldone);
1021 else if (ctr_mode == TFC_MODE_OCB && do_edcrypt == TFC_DO_ENCRYPT)
1022 tf_ocb_encrypt(key, ctr, dstblk, do_mac == TFC_MAC_SIGN ? macresult : NULL, srcblk, ldone, xtsblocks);
1023 else if (ctr_mode == TFC_MODE_OCB && do_edcrypt == TFC_DO_DECRYPT)
1024 tf_ocb_decrypt(key, ctr, dstblk, do_mac >= TFC_MAC_VRFY ? macresult : NULL, srcblk, ldone, xtsblocks);
1026 else if (ctr_mode == TFC_MODE_PLAIN)
1027 memcpy(dstblk, srcblk, ldone);
1029 if (do_mac >= TFC_MAC_VRFY && ctr_mode < TFC_MODE_OCB)
1030 skein_update(&sk, dstblk, ldone);
1031 if (do_mac == TFC_MAC_JUST_VRFY) goto _nowrite;
1036 _wagain: lio = write(dfd, pblk, lrem);
1037 if (lio != NOSIZE) ldone += lio;
1038 else xerror(NO, NO, NO, "%s", dstfname);
1039 if (do_fsync && fsync(dfd) == -1) xerror(NO, NO, NO, "%s", dstfname);
1045 _nowrite: total_processed_dst += ldone;
1046 delta_processed += ldone;
1048 if (maxlen != NOFSIZE && total_processed_src >= maxlen) break;
1051 if (do_stop == TFC_STOP_FULL) goto _nomac;
1054 if (do_mac >= TFC_MAC_VRFY) {
1058 lrem = lblock = TF_FROM_BITS(macbits);
1059 _macragain: lio = read(sfd, pblk, lrem);
1060 if (lio != NOSIZE) ldone += lio;
1062 if (errno != EIO && catch_all_errors != YES)
1063 xerror(NO, NO, NO, "%s", srcfname);
1064 switch (error_action) {
1065 case TFC_ERRACT_CONT: xerror(YES, NO, NO, "%s", srcfname); goto _macragain; break;
1066 case TFC_ERRACT_SYNC:
1067 xerror(YES, NO, NO, "%s", srcfname);
1068 lio = ldone = lrem = lblock;
1069 memset(macvrfy, 0, lio);
1070 lseek(sfd, lio, SEEK_CUR);
1072 default: xerror(NO, NO, NO, "%s", srcfname); break;
1075 if (lio && lio < lrem) {
1080 total_processed_src += ldone;
1085 if (!strcmp(do_mac_file, "-")) mfd = 0;
1086 else mfd = open(do_mac_file, O_RDONLY | O_LARGEFILE);
1087 if (mfd == -1) xerror(YES, NO, NO, "%s", do_mac_file);
1088 lio = ldone = read(mfd, tmpdata, sizeof(tmpdata));
1089 if (lio == NOSIZE) xerror(NO, NO, YES, "%s", do_mac_file);
1090 if (!memcmp(tmpdata, TFC_ASCII_TFC_MAC_FOURCC, TFC_ASCII_TFC_MAC_FOURCC_LEN)) {
1091 memmove(tmpdata, tmpdata+TFC_ASCII_TFC_MAC_FOURCC_LEN,
1092 sizeof(tmpdata)-TFC_ASCII_TFC_MAC_FOURCC_LEN);
1093 lio = TF_FROM_BITS(macbits);
1094 base64_decode((char *)macvrfy, lio, (char *)tmpdata, sizeof(tmpdata));
1096 else memcpy(macvrfy, tmpdata, TF_FROM_BITS(macbits));
1100 if (ldone < TF_FROM_BITS(macbits)) {
1101 if (quiet == NO) tfc_esay("%s: short signature (%zu), "
1102 "not verifying", progname, ldone);
1107 if (ctr_mode < TFC_MODE_OCB) skein_final(macresult, &sk);
1108 else skein(macresult, macbits, mackey, macresult, TF_FROM_BITS(macbits));
1110 if (ctr_mode == TFC_MODE_CTR) tf_ctr_crypt(key, ctr, tmpdata, macvrfy, TF_FROM_BITS(macbits));
1111 else if (ctr_mode == TFC_MODE_STREAM) tf_stream_crypt(&tfe, tmpdata, macvrfy, TF_FROM_BITS(macbits));
1112 else if (ctr_mode == TFC_MODE_XTS) tf_xts_decrypt(key, xtskey, ctr, tmpdata, macvrfy, TF_FROM_BITS(macbits), xtsblocks);
1113 else if (ctr_mode == TFC_MODE_ECB) tf_ecb_decrypt(key, tmpdata, macvrfy, TF_FROM_BITS(macbits));
1114 else if (ctr_mode == TFC_MODE_CBC) tf_cbc_decrypt(key, ctr, tmpdata, macvrfy, TF_FROM_BITS(macbits));
1115 else if (ctr_mode == TFC_MODE_OCB) tf_ocb_decrypt(key, ctr, tmpdata, NULL, macvrfy, TF_FROM_BITS(macbits), xtsblocks);
1117 if (!memcmp(tmpdata, macresult, TF_FROM_BITS(macbits))) {
1119 tfc_esay("%s: signature is good", progname);
1121 if (do_outfmt == TFC_OUTFMT_B64) tfc_printbase64(stderr, macresult, TF_FROM_BITS(macbits), YES);
1122 else mehexdump(macresult, TF_FROM_BITS(macbits), TF_FROM_BITS(macbits), YES);
1127 if (quiet == NO) tfc_esay("%s: signature is BAD: "
1128 "wrong password, key, mode, or file is not signed", progname);
1132 _shortmac: memset(macvrfy, 0, sizeof(macvrfy));
1133 memset(macresult, 0, sizeof(macresult));
1134 memset(tmpdata, 0, sizeof(tmpdata));
1137 else if (do_mac == TFC_MAC_SIGN) {
1138 if (ctr_mode < TFC_MODE_OCB) skein_final(macresult, &sk);
1139 else skein(macresult, macbits, mackey, macresult, TF_FROM_BITS(macbits));
1141 if (ctr_mode == TFC_MODE_CTR) tf_ctr_crypt(key, ctr, tmpdata, macresult, TF_FROM_BITS(macbits));
1142 else if (ctr_mode == TFC_MODE_STREAM) tf_stream_crypt(&tfe, tmpdata, macresult, TF_FROM_BITS(macbits));
1143 else if (ctr_mode == TFC_MODE_XTS) tf_xts_encrypt(key, xtskey, ctr, tmpdata, macresult, TF_FROM_BITS(macbits), xtsblocks);
1144 else if (ctr_mode == TFC_MODE_ECB) tf_ecb_encrypt(key, tmpdata, macresult, TF_FROM_BITS(macbits));
1145 else if (ctr_mode == TFC_MODE_CBC) tf_cbc_encrypt(key, ctr, tmpdata, macresult, TF_FROM_BITS(macbits));
1146 else if (ctr_mode == TFC_MODE_OCB) tf_ocb_encrypt(key, ctr, tmpdata, NULL, macresult, TF_FROM_BITS(macbits), xtsblocks);
1147 memset(macresult, 0, sizeof(macresult));
1151 lio = lrem = TF_FROM_BITS(macbits);
1153 _macwagain: lio = write(dfd, pblk, lrem);
1154 if (lio != NOSIZE) ldone += lio;
1155 else xerror(NO, NO, NO, "%s", dstfname);
1156 if (do_fsync && fsync(dfd) == -1) xerror(NO, NO, NO, "%s", dstfname);
1162 total_processed_dst += ldone;
1163 delta_processed += ldone;
1168 if (!strcmp(do_mac_file, "-")) mfd = 1;
1169 else mfd = open(do_mac_file, O_WRONLY | O_CREAT | O_LARGEFILE | write_flags, 0666);
1170 if (mfd == -1) xerror(YES, NO, NO, "%s", do_mac_file);
1171 if (do_outfmt == TFC_OUTFMT_B64) {
1172 memcpy(macvrfy, tmpdata, TF_FROM_BITS(macbits));
1173 memset(tmpdata, 0, TFC_TMPSIZE);
1174 memcpy(tmpdata, TFC_ASCII_TFC_MAC_FOURCC, TFC_ASCII_TFC_MAC_FOURCC_LEN);
1175 base64_encode((char *)tmpdata+TFC_ASCII_TFC_MAC_FOURCC_LEN, (char *)macvrfy, TF_FROM_BITS(macbits));
1176 lrem = strnlen((char *)tmpdata, sizeof(tmpdata));
1178 tmpdata[lrem] = '\n';
1181 lio = write(mfd, tmpdata, lrem);
1183 else lio = write(mfd, tmpdata, TF_FROM_BITS(macbits));
1184 if (lio == NOSIZE) xerror(NO, NO, YES, "%s", do_mac_file);
1185 if (do_fsync && fsync(mfd) == -1) xerror(NO, NO, YES, "%s", do_mac_file);
1189 memset(macvrfy, 0, sizeof(macvrfy));
1190 memset(macresult, 0, sizeof(macresult));
1191 memset(tmpdata, 0, sizeof(tmpdata));
1195 if (verbose || status_timer || do_stop == TFC_STOP_FULL) print_crypt_status(0);
1197 if (do_preserve_time) fcopy_matime(dfd, &s_stat);