e375fe33 |
1 | /* -*-c-*- |
2 | * |
d470270a |
3 | * $Id: hashsum.c,v 1.4 2000/08/04 23:23:44 mdw Exp $ |
e375fe33 |
4 | * |
5 | * Hash files using some secure hash function |
6 | * |
7 | * (c) 2000 Straylight/Edgeware |
8 | */ |
9 | |
10 | /*----- Licensing notice --------------------------------------------------* |
11 | * |
12 | * This file is part of Catacomb. |
13 | * |
14 | * Catacomb is free software; you can redistribute it and/or modify |
15 | * it under the terms of the GNU Library General Public License as |
16 | * published by the Free Software Foundation; either version 2 of the |
17 | * License, or (at your option) any later version. |
18 | * |
19 | * Catacomb is distributed in the hope that it will be useful, |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
22 | * GNU Library General Public License for more details. |
23 | * |
24 | * You should have received a copy of the GNU Library General Public |
25 | * License along with Catacomb; if not, write to the Free |
26 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
27 | * MA 02111-1307, USA. |
28 | */ |
29 | |
30 | /*----- Revision history --------------------------------------------------* |
31 | * |
32 | * $Log: hashsum.c,v $ |
d470270a |
33 | * Revision 1.4 2000/08/04 23:23:44 mdw |
34 | * Various <ctype.h> fixes. |
35 | * |
12902a5c |
36 | * Revision 1.3 2000/07/29 17:02:43 mdw |
37 | * (checkhash): Be pettier about spaces between the hash and filename, for |
38 | * compatiblity with `md5sum'. |
39 | * |
5af0f9cb |
40 | * Revision 1.2 2000/07/15 21:14:05 mdw |
41 | * Missed `-e' out of the usage string. |
42 | * |
e375fe33 |
43 | * Revision 1.1 2000/07/15 20:52:34 mdw |
44 | * Useful replacement for `md5sum' with support for many different hash |
45 | * functions and for reading filename lists from `find'. |
46 | * |
47 | */ |
48 | |
49 | /*----- Header files ------------------------------------------------------*/ |
50 | |
51 | #include "config.h" |
52 | |
53 | #include <ctype.h> |
54 | #include <errno.h> |
55 | #include <stdio.h> |
56 | #include <stdlib.h> |
57 | #include <string.h> |
58 | |
59 | #include <mLib/alloc.h> |
60 | #include <mLib/dstr.h> |
61 | #include <mLib/mdwopt.h> |
62 | #include <mLib/quis.h> |
63 | #include <mLib/report.h> |
64 | #include <mLib/sub.h> |
65 | #include <mLib/str.h> |
66 | |
67 | #include "ghash.h" |
68 | |
69 | #include "md4.h" |
70 | #include "md5.h" |
71 | #include "rmd128.h" |
72 | #include "rmd160.h" |
73 | #include "rmd256.h" |
74 | #include "rmd320.h" |
75 | #include "sha.h" |
76 | #include "tiger.h" |
77 | |
78 | /*----- Static variables --------------------------------------------------*/ |
79 | |
80 | static const gchash *hashtab[] = { |
81 | &md5, &md4, &sha, &rmd128, &rmd160, &rmd256, &rmd320, &tiger, |
82 | 0 |
83 | }; |
84 | |
85 | enum { |
86 | f_binary = 1, |
87 | f_bogus = 2, |
88 | f_verbose = 4, |
89 | f_check = 8, |
90 | f_files = 16, |
91 | f_raw = 32, |
92 | f_oddhash = 64, |
93 | f_escape = 128 |
94 | }; |
95 | |
96 | /*----- Support functions -------------------------------------------------*/ |
97 | |
98 | /* --- @fhash@ --- * |
99 | * |
100 | * Arguments: @const char *file@ = file name to be hashed (null for stdin) |
101 | * @unsigned f@ = flags to set |
102 | * @const gchash *gch@ = pointer to hash function to use |
103 | * @void *buf@ = pointer to hash output buffer |
104 | * |
105 | * Returns: Zero if it worked, nonzero on error. |
106 | * |
107 | * Use: Hashes a file. |
108 | */ |
109 | |
110 | static int fhash(const char *file, unsigned f, const gchash *gch, void *buf) |
111 | { |
112 | FILE *fp; |
113 | char fbuf[BUFSIZ]; |
114 | size_t sz; |
115 | ghash *h; |
116 | int e; |
117 | |
118 | if (!file) |
119 | fp = stdin; |
120 | else if ((fp = fopen(file, f & f_binary ? "rb" : "r")) == 0) |
121 | return (-1); |
122 | |
123 | h = gch->init(); |
124 | while ((sz = fread(fbuf, 1, sizeof(fbuf), fp)) > 0) |
125 | h->ops->hash(h, fbuf, sz); |
126 | h->ops->done(h, buf); |
127 | h->ops->destroy(h); |
128 | e = ferror(fp); |
129 | if (file) |
130 | fclose(fp); |
131 | return (e ? -1 : 0); |
132 | } |
133 | |
134 | /* --- @puthex@ --- * |
135 | * |
136 | * Arguments: @const octet *buf@ = pointer to a binary buffer |
137 | * @size_t sz@ = size of the buffer |
138 | * @FILE *fp@ = pointer to output file handle |
139 | * |
140 | * Returns: --- |
141 | * |
142 | * Use: Writes a hex dump of a block of memory. |
143 | */ |
144 | |
145 | static void puthex(const octet *buf, size_t sz, FILE *fp) |
146 | { |
147 | while (sz) { |
148 | fprintf(fp, "%02x", *buf++); |
149 | sz--; |
150 | } |
151 | } |
152 | |
153 | /* --- @gethex@ --- * |
154 | * |
155 | * Arguments: @const char *p@ = pointer to input string |
156 | * @octet *q@ = pointer to output buffer |
157 | * @size_t sz@ = size of the output buffer |
158 | * @char **pp@ = where to put the end pointer |
159 | * |
160 | * Returns: The number of bytes written to the buffer. |
161 | * |
162 | * Use: Reads hex dumps from the input string. |
163 | */ |
164 | |
165 | static size_t gethex(const char *p, octet *q, size_t sz, char **pp) |
166 | { |
167 | size_t i = 0; |
168 | while (sz > 0 && |
169 | isxdigit((unsigned char)p[0]) && |
170 | isxdigit((unsigned char)p[1])) { |
171 | char buf[3]; |
172 | buf[0] = p[0]; |
173 | buf[1] = p[1]; |
174 | buf[2] = 0; |
175 | *q++ = strtoul(buf, 0, 16); |
176 | sz--; |
177 | p += 2; |
178 | i++; |
179 | } |
180 | if (pp) |
181 | *pp = (char *)p; |
182 | return (i); |
183 | } |
184 | |
185 | /* --- @gethash@ --- * |
186 | * |
187 | * Arguments: @const char *name@ = pointer to name string |
188 | * |
189 | * Returns: Pointer to appropriate hash class. |
190 | * |
191 | * Use: Chooses a hash function by name. |
192 | */ |
193 | |
194 | static const gchash *gethash(const char *name) |
195 | { |
196 | const gchash **g, *gg = 0; |
197 | size_t sz = strlen(name); |
198 | for (g = hashtab; *g; g++) { |
199 | if (strncmp(name, (*g)->name, sz) == 0) { |
200 | if ((*g)->name[sz] == 0) { |
201 | gg = *g; |
202 | break; |
203 | } else if (gg) |
204 | return (0); |
205 | else |
206 | gg = *g; |
207 | } |
208 | } |
209 | return (gg); |
210 | } |
211 | |
212 | /* --- @getstring@ --- * |
213 | * |
214 | * Arguments: @FILE *fp@ = stream from which to read |
215 | * @const char *p@ = string to read from instead |
216 | * @dstr *d@ = destination string |
217 | * @unsigned raw@ = raw or cooked read |
218 | * |
219 | * Returns: Zero if OK, nonzero on end-of-file. |
220 | * |
221 | * Use: Reads a filename (or something similar) from a stream. |
222 | */ |
223 | |
224 | static int getstring(FILE *fp, const char *p, dstr *d, unsigned raw) |
225 | { |
226 | int ch; |
227 | int q = 0; |
228 | |
229 | /* --- Raw: just read exactly what's written up to a null byte --- */ |
230 | |
d470270a |
231 | #define NEXTCH (fp ? getc(fp) : (unsigned char)*p++) |
e375fe33 |
232 | #define EOFCH (fp ? EOF : 0) |
233 | |
234 | if (raw) { |
235 | if ((ch = NEXTCH) == EOFCH) |
236 | return (EOF); |
237 | for (;;) { |
238 | if (!ch) |
239 | break; |
240 | DPUTC(d, ch); |
241 | if ((ch = NEXTCH) == EOFCH) |
242 | break; |
243 | } |
244 | DPUTZ(d); |
245 | return (0); |
246 | } |
247 | |
248 | /* --- Skip as far as whitespace --- * |
249 | * |
250 | * Also skip past comments. |
251 | */ |
252 | |
253 | again: |
254 | ch = NEXTCH; |
d470270a |
255 | while (isspace(ch)) |
e375fe33 |
256 | ch = NEXTCH; |
257 | if (ch == '#') { |
258 | do ch = NEXTCH; while (ch != '\n' && ch != EOFCH); |
259 | goto again; |
260 | } |
261 | if (ch == EOFCH) |
262 | return (EOF); |
263 | |
264 | /* --- If the character is a quote then read a quoted string --- */ |
265 | |
266 | switch (ch) { |
267 | case '`': |
268 | ch = '\''; |
269 | case '\'': |
270 | case '\"': |
271 | q = ch; |
272 | ch = NEXTCH; |
273 | break; |
274 | } |
275 | |
276 | /* --- Now read all sorts of interesting things --- */ |
277 | |
278 | for (;;) { |
279 | |
280 | /* --- Handle an escaped thing --- */ |
281 | |
282 | if (ch == '\\') { |
283 | ch = NEXTCH; |
284 | if (ch == EOFCH) |
285 | break; |
286 | switch (ch) { |
287 | case 'a': ch = '\a'; break; |
288 | case 'b': ch = '\b'; break; |
289 | case 'f': ch = '\f'; break; |
290 | case 'n': ch = '\n'; break; |
291 | case 'r': ch = '\r'; break; |
292 | case 't': ch = '\t'; break; |
293 | case 'v': ch = '\v'; break; |
294 | } |
295 | DPUTC(d, ch); |
296 | ch = NEXTCH; |
297 | continue; |
298 | } |
299 | |
300 | /* --- If it's a quote or some other end marker then stop --- */ |
301 | |
302 | if (ch == q) |
303 | break; |
d470270a |
304 | if (!q && isspace(ch)) |
e375fe33 |
305 | break; |
306 | |
307 | /* --- Otherwise contribute and continue --- */ |
308 | |
309 | DPUTC(d, ch); |
310 | if ((ch = NEXTCH) == EOFCH) |
311 | break; |
312 | } |
313 | |
314 | /* --- Done --- */ |
315 | |
316 | DPUTZ(d); |
317 | return (0); |
318 | |
319 | #undef NEXTCH |
320 | #undef EOFCH |
321 | } |
322 | |
323 | /* --- @putstring@ --- * |
324 | * |
325 | * Arguments: @FILE *fp@ = stream to write on |
326 | * @const char *p@ = pointer to text |
327 | * @unsigned raw@ = whether the string is to be written raw |
328 | * |
329 | * Returns: --- |
330 | * |
331 | * Use: Emits a string to a stream. |
332 | */ |
333 | |
334 | static void putstring(FILE *fp, const char *p, unsigned raw) |
335 | { |
336 | size_t sz = strlen(p); |
337 | unsigned qq; |
338 | const char *q; |
339 | |
340 | /* --- Just write the string null terminated if raw --- */ |
341 | |
342 | if (raw) { |
343 | fwrite(p, 1, sz + 1, fp); |
344 | return; |
345 | } |
346 | |
347 | /* --- Check for any dodgy characters --- */ |
348 | |
349 | qq = 0; |
350 | for (q = p; *q; q++) { |
351 | if (isspace((unsigned char)*q)) { |
352 | qq = '\"'; |
353 | break; |
354 | } |
355 | } |
356 | |
357 | if (qq) |
358 | putc(qq, fp); |
359 | |
360 | /* --- Emit the string --- */ |
361 | |
362 | for (q = p; *q; q++) { |
363 | switch (*q) { |
364 | case '\a': fputc('\\', fp); fputc('a', fp); break; |
365 | case '\b': fputc('\\', fp); fputc('b', fp); break; |
366 | case '\f': fputc('\\', fp); fputc('f', fp); break; |
367 | case '\n': fputc('\\', fp); fputc('n', fp); break; |
368 | case '\r': fputc('\\', fp); fputc('r', fp); break; |
369 | case '\t': fputc('\\', fp); fputc('t', fp); break; |
370 | case '\v': fputc('\\', fp); fputc('v', fp); break; |
371 | case '`': fputc('\\', fp); fputc('`', fp); break; |
372 | case '\'': fputc('\\', fp); fputc('\'', fp); break; |
373 | case '\"': fputc('\\', fp); fputc('\"', fp); break; |
374 | case '#': fputc('\\', fp); fputc('#', fp); break; |
375 | default: |
376 | putc(*q, fp); |
377 | break; |
378 | } |
379 | } |
380 | |
381 | /* --- Done --- */ |
382 | |
383 | if (qq) |
384 | putc(qq, fp); |
385 | } |
386 | |
387 | /*----- Guts --------------------------------------------------------------*/ |
388 | |
389 | static int checkhash(const char *file, unsigned f, const gchash *gch) |
390 | { |
391 | int rc; |
392 | FILE *fp; |
393 | dstr d = DSTR_INIT; |
394 | dstr dd = DSTR_INIT; |
395 | unsigned long n = 0, nfail = 0; |
396 | octet *buf = xmalloc(2 * gch->hashsz); |
397 | |
398 | if (!file) |
399 | fp = stdin; |
400 | else if ((fp = fopen(file, f & f_raw ? "r" : "rb")) == 0) { |
401 | moan("couldn't open `%s': %s", file, strerror(errno)); |
402 | return (EXIT_FAILURE); |
403 | } |
404 | |
405 | while (DRESET(&d), dstr_putline(&d, fp) != EOF) { |
406 | char *p = d.buf; |
407 | char *q; |
408 | unsigned ff = f; |
409 | |
410 | /* --- Handle a directive --- */ |
411 | |
412 | if (*p == '#') { |
413 | p++; |
414 | if ((q = str_getword(&p)) == 0) |
415 | continue; |
416 | if (strcmp(q, "hash") == 0) { |
417 | const gchash *g; |
418 | if ((q = str_getword(&p)) == 0) |
419 | continue; |
420 | if ((g = gethash(q)) == 0) |
421 | continue; |
422 | gch = g; |
423 | xfree(buf); |
424 | buf = xmalloc(2 * gch->hashsz); |
425 | } else if (strcmp(q, "escape") == 0) |
426 | f |= f_escape; |
427 | continue; |
428 | } |
429 | |
430 | /* --- Otherwise it's a hex thing --- */ |
431 | |
12902a5c |
432 | q = p; |
433 | while (*p && *p != ' ') |
434 | p++; |
435 | if (!*p) |
e375fe33 |
436 | continue; |
12902a5c |
437 | *p++ = 0; |
e375fe33 |
438 | if (gethex(q, buf, gch->hashsz, 0) < gch->hashsz) |
439 | continue; |
12902a5c |
440 | if (*p == '*') |
e375fe33 |
441 | ff |= f_binary; |
12902a5c |
442 | else if (*p != ' ') |
e375fe33 |
443 | continue; |
12902a5c |
444 | p++; |
e375fe33 |
445 | |
446 | if (f & f_escape) { |
447 | DRESET(&dd); |
448 | getstring(0, p, &dd, 0); |
449 | p = dd.buf; |
450 | } |
451 | |
452 | if (fhash(p, ff, gch, buf + gch->hashsz)) { |
453 | moan("couldn't read `%s': %s", p, strerror(errno)); |
454 | rc = EXIT_FAILURE; |
455 | continue; |
456 | } |
457 | if (memcmp(buf, buf + gch->hashsz, gch->hashsz) != 0) { |
458 | if (ff & f_verbose) |
459 | fprintf(stderr, "FAIL %s\n", p); |
460 | else |
461 | moan("%s check failed for `%s'", gch->name, p); |
462 | nfail++; |
463 | rc = EXIT_FAILURE; |
464 | } else { |
465 | if (ff & f_verbose) |
466 | fprintf(stderr, "OK %s\n", p); |
467 | } |
468 | n++; |
469 | } |
470 | |
471 | dstr_destroy(&d); |
472 | dstr_destroy(&dd); |
473 | xfree(buf); |
474 | if ((f & f_verbose) && nfail) |
475 | moan("%lu of %lu file(s) failed %s check", nfail, n, gch->name); |
476 | else if (!n) |
477 | moan("no files checked"); |
478 | return (0); |
479 | } |
480 | |
481 | static int dohash(const char *file, unsigned f, const gchash *gch) |
482 | { |
483 | int rc = 0; |
484 | octet *p = xmalloc(gch->hashsz); |
485 | |
486 | if (fhash(file, f, gch, p)) { |
487 | moan("couldn't read `%s': %s", file ? file : "<stdin>", strerror(errno)); |
488 | rc = EXIT_FAILURE; |
489 | } else { |
490 | puthex(p, gch->hashsz, stdout); |
491 | if (file) { |
492 | fputc(' ', stdout); |
493 | fputc(f & f_binary ? '*' : ' ', stdout); |
494 | if (f & f_escape) |
495 | putstring(stdout, file, 0); |
496 | else |
497 | fputs(file, stdout); |
498 | } |
499 | fputc('\n', stdout); |
500 | } |
501 | |
502 | xfree(p); |
503 | return (rc); |
504 | } |
505 | |
12902a5c |
506 | static int dofile(const char *file, unsigned f, const gchash *gch) |
507 | { |
508 | return (f & f_check ? checkhash : dohash)(file, f, gch); |
509 | } |
510 | |
e375fe33 |
511 | static int hashfiles(const char *file, unsigned f, const gchash *gch) |
512 | { |
513 | FILE *fp; |
514 | dstr d = DSTR_INIT; |
515 | int rc = 0; |
516 | int rrc; |
517 | |
518 | if (!file) |
519 | fp = stdin; |
520 | else if ((fp = fopen(file, f & f_raw ? "r" : "rb")) == 0) { |
521 | moan("couldn't open `%s': %s", file, strerror(errno)); |
522 | return (EXIT_FAILURE); |
523 | } |
524 | |
525 | for (;;) { |
526 | DRESET(&d); |
527 | if (getstring(fp, 0, &d, f & f_raw)) |
528 | break; |
12902a5c |
529 | if ((rrc = dofile(d.buf, f, gch)) != 0) |
e375fe33 |
530 | rc = rrc; |
531 | } |
532 | |
533 | return (rc); |
534 | } |
535 | |
536 | static int hashsum(const char *file, unsigned f, const gchash *gch) |
537 | { |
12902a5c |
538 | return (f & f_files ? hashfiles : dofile)(file, f, gch); |
e375fe33 |
539 | } |
540 | |
541 | /*----- Main driver -------------------------------------------------------*/ |
542 | |
543 | static void version(FILE *fp) |
544 | { |
545 | pquis(fp, "$, Catacomb version " VERSION "\n"); |
546 | } |
547 | |
548 | static void usage(FILE *fp) |
549 | { |
5af0f9cb |
550 | pquis(fp, "Usage: $ [-f0ebcv] [-a algorithm] [files...]\n"); |
e375fe33 |
551 | } |
552 | |
553 | static void help(FILE *fp, const gchash *gch) |
554 | { |
555 | version(fp); |
556 | fputc('\n', fp); |
557 | usage(fp); |
558 | pquis(fp, "\n\ |
559 | Generates or checks message digests on files. Options available:\n\ |
560 | \n\ |
561 | -h, --help Display this help message.\n\ |
562 | -V, --version Display program's version number.\n\ |
563 | -u, --usage Display a terse usage message.\n\ |
564 | \n\ |
565 | -a, --algorithm=ALG Use the message digest algorithm ALG.\n\ |
566 | \n\ |
567 | -f, --files Read a list of file names from standard input.\n\ |
568 | -0, --null File names are null terminated, not plain text.\n\ |
569 | \n\ |
570 | -e, --escape Escape funny characters in filenames.\n\ |
571 | -c, --check Check message digests rather than emitting them.\n\ |
572 | -b, --binary When reading files, treat them as binary.\n\ |
573 | -v, --verbose Be verbose when checking digests.\n\ |
574 | \n\ |
575 | For a list of supported message digest algorithms, type `$ --list'.\n\ |
576 | "); |
577 | if (gch) |
578 | fprintf(fp, "The default message digest algorithm is %s.\n", gch->name); |
579 | } |
580 | |
581 | int main(int argc, char *argv[]) |
582 | { |
583 | unsigned f = 0; |
584 | const gchash *gch = 0; |
585 | int rc; |
586 | |
587 | /* --- Initialization --- */ |
588 | |
589 | ego(argv[0]); |
590 | sub_init(); |
591 | |
592 | /* --- Choose a hash function from the name --- */ |
593 | |
594 | { |
595 | char *q = xstrdup(QUIS); |
596 | size_t len = strlen(q); |
597 | if (len > 3 && strcmp(q + len - 3, "sum") == 0) { |
598 | q[len - 3] = 0; |
599 | gch = gethash(q); |
600 | } |
601 | if (!gch) |
602 | gch = hashtab[0]; |
603 | xfree(q); |
604 | } |
605 | |
606 | /* --- Read options --- */ |
607 | |
608 | for (;;) { |
609 | static struct option opts[] = { |
610 | { "help", 0, 0, 'h' }, |
611 | { "verbose", 0, 0, 'V' }, |
612 | { "usage", 0, 0, 'u' }, |
613 | |
614 | { "algorithm", OPTF_ARGREQ, 0, 'a' }, |
615 | { "hash", OPTF_ARGREQ, 0, 'a' }, |
616 | { "list", 0, 0, 'l' }, |
617 | |
618 | { "files", 0, 0, 'f' }, |
619 | { "find", 0, 0, 'f' }, |
620 | { "null", 0, 0, '0' }, |
621 | |
622 | { "escape", 0, 0, 'e' }, |
623 | { "check", 0, 0, 'c' }, |
624 | { "binary", 0, 0, 'b' }, |
625 | { "verbose", 0, 0, 'v' }, |
626 | |
627 | { 0, 0, 0, 0 } |
628 | }; |
629 | int i = mdwopt(argc, argv, "hVu a:l f0 ecbv", opts, 0, 0, 0); |
630 | if (i < 0) |
631 | break; |
632 | |
633 | switch (i) { |
634 | case 'h': |
635 | help(stdout, gch); |
636 | exit(0); |
637 | case 'V': |
638 | version(stdout); |
639 | exit(0); |
640 | case 'u': |
641 | usage(stdout); |
642 | exit(0); |
643 | case 'a': |
644 | if ((gch = gethash(optarg)) == 0) |
645 | die(EXIT_FAILURE, "unknown hash algorithm `%s'", optarg); |
646 | f |= f_oddhash; |
647 | break; |
648 | case 'l': { |
649 | unsigned j; |
650 | for (j = 0; hashtab[j]; j++) { |
651 | if (j) |
652 | fputc(' ', stdout); |
653 | printf("%s", hashtab[j]->name); |
654 | } |
655 | fputc('\n', stdout); |
656 | exit(0); |
657 | } break; |
658 | case 'f': |
659 | f |= f_files; |
660 | break; |
661 | case '0': |
662 | f |= f_raw; |
663 | break; |
664 | case 'e': |
665 | f |= f_escape; |
666 | break; |
667 | case 'c': |
668 | f |= f_check; |
669 | break; |
670 | case 'b': |
671 | f |= f_binary; |
672 | break; |
673 | case 'v': |
674 | f |= f_verbose; |
675 | break; |
676 | default: |
677 | f |= f_bogus; |
678 | break; |
679 | } |
680 | } |
681 | |
682 | if (f & f_bogus) { |
683 | usage(stderr); |
684 | exit(EXIT_FAILURE); |
685 | } |
686 | argv += optind; |
687 | argc -= optind; |
688 | |
689 | /* --- Generate output --- */ |
690 | |
691 | if (!(f & f_check)) { |
692 | if (f & f_oddhash) |
693 | printf("#hash %s\n", gch->name); |
694 | if (f & f_escape) |
695 | fputs("#escape\n", stdout); |
696 | } |
697 | |
698 | if (argc) { |
699 | int i; |
700 | int rrc; |
701 | rc = 0; |
702 | for (i = 0; i < argc; i++) { |
703 | if ((rrc = hashsum(argv[i], f, gch)) != 0) |
704 | rc = rrc; |
705 | } |
706 | } else |
707 | rc = hashsum(0, f, gch); |
708 | |
709 | return (rc); |
710 | } |
711 | |
712 | /*----- That's all, folks -------------------------------------------------*/ |