e375fe33 |
1 | /* -*-c-*- |
2 | * |
5685a696 |
3 | * $Id$ |
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 | |
e375fe33 |
30 | /*----- Header files ------------------------------------------------------*/ |
31 | |
32 | #include "config.h" |
33 | |
5685a696 |
34 | #include <assert.h> |
e375fe33 |
35 | #include <ctype.h> |
36 | #include <errno.h> |
37 | #include <stdio.h> |
38 | #include <stdlib.h> |
39 | #include <string.h> |
40 | |
41 | #include <mLib/alloc.h> |
42 | #include <mLib/dstr.h> |
43 | #include <mLib/mdwopt.h> |
44 | #include <mLib/quis.h> |
45 | #include <mLib/report.h> |
46 | #include <mLib/sub.h> |
47 | #include <mLib/str.h> |
48 | |
5685a696 |
49 | #include <mLib/hex.h> |
50 | #include <mLib/base32.h> |
51 | #include <mLib/base64.h> |
52 | |
e375fe33 |
53 | #include "ghash.h" |
54 | |
e375fe33 |
55 | /*----- Static variables --------------------------------------------------*/ |
56 | |
16efd15b |
57 | #define f_binary 1u |
58 | #define f_bogus 2u |
59 | #define f_verbose 4u |
60 | #define f_check 8u |
61 | #define f_files 16u |
62 | #define f_raw 32u |
63 | #define f_oddhash 64u |
64 | #define f_escape 128u |
5685a696 |
65 | #define f_oddenc 256u |
66 | |
67 | /*----- Encoding and decoding ---------------------------------------------*/ |
68 | |
69 | /* --- Hex encoding --- */ |
70 | |
71 | static void puthex(const octet *buf, size_t sz, FILE *fp) |
72 | { |
73 | while (sz) { |
74 | fprintf(fp, "%02x", *buf++); |
75 | sz--; |
76 | } |
77 | } |
78 | |
79 | static size_t gethex(const char *p, octet *q, size_t sz, char **pp) |
80 | { |
81 | size_t i = 0; |
82 | while (sz > 0 && |
83 | isxdigit((unsigned char)p[0]) && |
84 | isxdigit((unsigned char)p[1])) { |
85 | char buf[3]; |
86 | buf[0] = p[0]; |
87 | buf[1] = p[1]; |
88 | buf[2] = 0; |
89 | *q++ = strtoul(buf, 0, 16); |
90 | sz--; |
91 | p += 2; |
92 | i++; |
93 | } |
94 | if (pp) |
95 | *pp = (char *)p; |
96 | return (i); |
97 | } |
98 | |
99 | /* --- Base64 encoding --- */ |
100 | |
101 | static void putb64(const octet *buf, size_t sz, FILE *fp) |
102 | { |
103 | base64_ctx b; |
104 | dstr d = DSTR_INIT; |
105 | |
106 | base64_init(&b); |
107 | b.indent = ""; |
108 | b.maxline = 0; |
109 | base64_encode(&b, buf, sz, &d); |
110 | base64_encode(&b, 0, 0, &d); |
111 | dstr_write(&d, fp); |
112 | dstr_destroy(&d); |
113 | } |
114 | |
115 | static size_t getb64(const char *p, octet *q, size_t sz, char **pp) |
116 | { |
117 | base64_ctx b; |
118 | dstr d = DSTR_INIT; |
119 | size_t n = strlen(p); |
120 | |
121 | base64_init(&b); |
122 | base64_decode(&b, p, n, &d); |
123 | if (pp) *pp = (/*unconst*/ char *)p + n; |
124 | base64_decode(&b, 0, 0, &d); |
125 | assert(d.len <= sz); |
126 | memcpy(q, d.buf, sz); |
127 | n = d.len; |
128 | dstr_destroy(&d); |
129 | return (n); |
130 | } |
131 | |
132 | /* --- Base32 encoding --- */ |
133 | |
134 | static void putb32(const octet *buf, size_t sz, FILE *fp) |
135 | { |
136 | base32_ctx b; |
137 | dstr d = DSTR_INIT; |
138 | |
139 | base32_init(&b); |
140 | b.indent = ""; |
141 | b.maxline = 0; |
142 | base32_encode(&b, buf, sz, &d); |
143 | base32_encode(&b, 0, 0, &d); |
144 | dstr_write(&d, fp); |
145 | dstr_destroy(&d); |
146 | } |
147 | |
148 | static size_t getb32(const char *p, octet *q, size_t sz, char **pp) |
149 | { |
150 | base32_ctx b; |
151 | dstr d = DSTR_INIT; |
152 | size_t n = strlen(p); |
153 | |
154 | base32_init(&b); |
155 | base32_decode(&b, p, n, &d); |
156 | if (pp) *pp = (/*unconst*/ char *)p + n; |
157 | base32_decode(&b, 0, 0, &d); |
158 | assert(d.len <= sz); |
159 | memcpy(q, d.buf, sz); |
160 | n = d.len; |
161 | dstr_destroy(&d); |
162 | return (n); |
163 | } |
164 | |
165 | /* --- Table --- */ |
166 | |
167 | typedef struct encops { |
168 | const char *name; |
169 | void (*put)(const octet *, size_t, FILE *); |
170 | size_t (*get)(const char *, octet *, size_t, char **); |
171 | } encops; |
172 | |
173 | static const encops enctab[] = { |
174 | { "hex", puthex, gethex }, |
175 | { "base64", putb64, getb64 }, |
176 | { "base32", putb32, getb32 }, |
177 | { 0, 0, 0 } |
178 | }; |
179 | |
180 | static const encops *getenc(const char *ename) |
181 | { |
182 | const encops *e; |
183 | |
184 | for (e = enctab; e->name; e++) { |
185 | if (strcmp(ename, e->name) == 0) |
186 | return (e); |
187 | } |
188 | return (0); |
189 | } |
e375fe33 |
190 | |
191 | /*----- Support functions -------------------------------------------------*/ |
192 | |
193 | /* --- @fhash@ --- * |
194 | * |
195 | * Arguments: @const char *file@ = file name to be hashed (null for stdin) |
196 | * @unsigned f@ = flags to set |
197 | * @const gchash *gch@ = pointer to hash function to use |
198 | * @void *buf@ = pointer to hash output buffer |
199 | * |
200 | * Returns: Zero if it worked, nonzero on error. |
201 | * |
202 | * Use: Hashes a file. |
203 | */ |
204 | |
205 | static int fhash(const char *file, unsigned f, const gchash *gch, void *buf) |
206 | { |
207 | FILE *fp; |
208 | char fbuf[BUFSIZ]; |
209 | size_t sz; |
210 | ghash *h; |
211 | int e; |
212 | |
213 | if (!file) |
214 | fp = stdin; |
215 | else if ((fp = fopen(file, f & f_binary ? "rb" : "r")) == 0) |
216 | return (-1); |
217 | |
b817bfc6 |
218 | h = GH_INIT(gch); |
e375fe33 |
219 | while ((sz = fread(fbuf, 1, sizeof(fbuf), fp)) > 0) |
b817bfc6 |
220 | GH_HASH(h, fbuf, sz); |
221 | GH_DONE(h, buf); |
222 | GH_DESTROY(h); |
e375fe33 |
223 | e = ferror(fp); |
224 | if (file) |
225 | fclose(fp); |
226 | return (e ? -1 : 0); |
227 | } |
228 | |
e375fe33 |
229 | /* --- @gethash@ --- * |
230 | * |
231 | * Arguments: @const char *name@ = pointer to name string |
232 | * |
233 | * Returns: Pointer to appropriate hash class. |
234 | * |
235 | * Use: Chooses a hash function by name. |
236 | */ |
237 | |
238 | static const gchash *gethash(const char *name) |
239 | { |
e9026a0a |
240 | const gchash *const *g, *gg = 0; |
e375fe33 |
241 | size_t sz = strlen(name); |
e9026a0a |
242 | for (g = ghashtab; *g; g++) { |
e375fe33 |
243 | if (strncmp(name, (*g)->name, sz) == 0) { |
244 | if ((*g)->name[sz] == 0) { |
245 | gg = *g; |
246 | break; |
247 | } else if (gg) |
248 | return (0); |
249 | else |
250 | gg = *g; |
251 | } |
252 | } |
253 | return (gg); |
254 | } |
255 | |
256 | /* --- @getstring@ --- * |
257 | * |
258 | * Arguments: @FILE *fp@ = stream from which to read |
259 | * @const char *p@ = string to read from instead |
260 | * @dstr *d@ = destination string |
261 | * @unsigned raw@ = raw or cooked read |
262 | * |
263 | * Returns: Zero if OK, nonzero on end-of-file. |
264 | * |
265 | * Use: Reads a filename (or something similar) from a stream. |
266 | */ |
267 | |
268 | static int getstring(FILE *fp, const char *p, dstr *d, unsigned raw) |
269 | { |
270 | int ch; |
271 | int q = 0; |
272 | |
273 | /* --- Raw: just read exactly what's written up to a null byte --- */ |
274 | |
d470270a |
275 | #define NEXTCH (fp ? getc(fp) : (unsigned char)*p++) |
e375fe33 |
276 | #define EOFCH (fp ? EOF : 0) |
277 | |
278 | if (raw) { |
279 | if ((ch = NEXTCH) == EOFCH) |
280 | return (EOF); |
281 | for (;;) { |
282 | if (!ch) |
283 | break; |
284 | DPUTC(d, ch); |
285 | if ((ch = NEXTCH) == EOFCH) |
286 | break; |
287 | } |
288 | DPUTZ(d); |
289 | return (0); |
290 | } |
291 | |
292 | /* --- Skip as far as whitespace --- * |
293 | * |
294 | * Also skip past comments. |
295 | */ |
296 | |
297 | again: |
298 | ch = NEXTCH; |
d470270a |
299 | while (isspace(ch)) |
e375fe33 |
300 | ch = NEXTCH; |
301 | if (ch == '#') { |
302 | do ch = NEXTCH; while (ch != '\n' && ch != EOFCH); |
303 | goto again; |
304 | } |
305 | if (ch == EOFCH) |
306 | return (EOF); |
307 | |
308 | /* --- If the character is a quote then read a quoted string --- */ |
309 | |
310 | switch (ch) { |
311 | case '`': |
312 | ch = '\''; |
313 | case '\'': |
314 | case '\"': |
315 | q = ch; |
316 | ch = NEXTCH; |
317 | break; |
318 | } |
319 | |
320 | /* --- Now read all sorts of interesting things --- */ |
321 | |
322 | for (;;) { |
323 | |
324 | /* --- Handle an escaped thing --- */ |
325 | |
326 | if (ch == '\\') { |
327 | ch = NEXTCH; |
328 | if (ch == EOFCH) |
329 | break; |
330 | switch (ch) { |
331 | case 'a': ch = '\a'; break; |
332 | case 'b': ch = '\b'; break; |
333 | case 'f': ch = '\f'; break; |
334 | case 'n': ch = '\n'; break; |
335 | case 'r': ch = '\r'; break; |
336 | case 't': ch = '\t'; break; |
337 | case 'v': ch = '\v'; break; |
338 | } |
339 | DPUTC(d, ch); |
340 | ch = NEXTCH; |
341 | continue; |
342 | } |
343 | |
344 | /* --- If it's a quote or some other end marker then stop --- */ |
345 | |
346 | if (ch == q) |
347 | break; |
d470270a |
348 | if (!q && isspace(ch)) |
e375fe33 |
349 | break; |
350 | |
351 | /* --- Otherwise contribute and continue --- */ |
352 | |
353 | DPUTC(d, ch); |
354 | if ((ch = NEXTCH) == EOFCH) |
355 | break; |
356 | } |
357 | |
358 | /* --- Done --- */ |
359 | |
360 | DPUTZ(d); |
361 | return (0); |
362 | |
363 | #undef NEXTCH |
364 | #undef EOFCH |
365 | } |
366 | |
367 | /* --- @putstring@ --- * |
368 | * |
369 | * Arguments: @FILE *fp@ = stream to write on |
370 | * @const char *p@ = pointer to text |
371 | * @unsigned raw@ = whether the string is to be written raw |
372 | * |
373 | * Returns: --- |
374 | * |
375 | * Use: Emits a string to a stream. |
376 | */ |
377 | |
378 | static void putstring(FILE *fp, const char *p, unsigned raw) |
379 | { |
380 | size_t sz = strlen(p); |
381 | unsigned qq; |
382 | const char *q; |
383 | |
384 | /* --- Just write the string null terminated if raw --- */ |
385 | |
386 | if (raw) { |
387 | fwrite(p, 1, sz + 1, fp); |
388 | return; |
389 | } |
390 | |
391 | /* --- Check for any dodgy characters --- */ |
392 | |
393 | qq = 0; |
394 | for (q = p; *q; q++) { |
395 | if (isspace((unsigned char)*q)) { |
396 | qq = '\"'; |
397 | break; |
398 | } |
399 | } |
400 | |
401 | if (qq) |
402 | putc(qq, fp); |
403 | |
404 | /* --- Emit the string --- */ |
405 | |
406 | for (q = p; *q; q++) { |
407 | switch (*q) { |
408 | case '\a': fputc('\\', fp); fputc('a', fp); break; |
409 | case '\b': fputc('\\', fp); fputc('b', fp); break; |
410 | case '\f': fputc('\\', fp); fputc('f', fp); break; |
411 | case '\n': fputc('\\', fp); fputc('n', fp); break; |
412 | case '\r': fputc('\\', fp); fputc('r', fp); break; |
413 | case '\t': fputc('\\', fp); fputc('t', fp); break; |
414 | case '\v': fputc('\\', fp); fputc('v', fp); break; |
415 | case '`': fputc('\\', fp); fputc('`', fp); break; |
416 | case '\'': fputc('\\', fp); fputc('\'', fp); break; |
417 | case '\"': fputc('\\', fp); fputc('\"', fp); break; |
418 | case '#': fputc('\\', fp); fputc('#', fp); break; |
419 | default: |
420 | putc(*q, fp); |
421 | break; |
422 | } |
423 | } |
424 | |
425 | /* --- Done --- */ |
426 | |
427 | if (qq) |
428 | putc(qq, fp); |
429 | } |
430 | |
431 | /*----- Guts --------------------------------------------------------------*/ |
432 | |
5685a696 |
433 | static int checkhash(const char *file, unsigned f, |
434 | const gchash *gch, const encops *e) |
e375fe33 |
435 | { |
436 | int rc; |
437 | FILE *fp; |
438 | dstr d = DSTR_INIT; |
439 | dstr dd = DSTR_INIT; |
440 | unsigned long n = 0, nfail = 0; |
441 | octet *buf = xmalloc(2 * gch->hashsz); |
442 | |
443 | if (!file) |
444 | fp = stdin; |
445 | else if ((fp = fopen(file, f & f_raw ? "r" : "rb")) == 0) { |
446 | moan("couldn't open `%s': %s", file, strerror(errno)); |
447 | return (EXIT_FAILURE); |
448 | } |
449 | |
450 | while (DRESET(&d), dstr_putline(&d, fp) != EOF) { |
451 | char *p = d.buf; |
452 | char *q; |
453 | unsigned ff = f; |
454 | |
455 | /* --- Handle a directive --- */ |
456 | |
457 | if (*p == '#') { |
458 | p++; |
459 | if ((q = str_getword(&p)) == 0) |
460 | continue; |
461 | if (strcmp(q, "hash") == 0) { |
462 | const gchash *g; |
463 | if ((q = str_getword(&p)) == 0) |
464 | continue; |
465 | if ((g = gethash(q)) == 0) |
466 | continue; |
467 | gch = g; |
468 | xfree(buf); |
469 | buf = xmalloc(2 * gch->hashsz); |
5685a696 |
470 | } else if (strcmp(q, "encoding") == 0) { |
471 | const encops *ee; |
472 | if ((q = str_getword(&p)) == 0) |
473 | continue; |
474 | if ((ee = getenc(q)) == 0) |
475 | continue; |
476 | e = ee; |
e375fe33 |
477 | } else if (strcmp(q, "escape") == 0) |
478 | f |= f_escape; |
479 | continue; |
480 | } |
481 | |
482 | /* --- Otherwise it's a hex thing --- */ |
483 | |
12902a5c |
484 | q = p; |
485 | while (*p && *p != ' ') |
486 | p++; |
487 | if (!*p) |
e375fe33 |
488 | continue; |
12902a5c |
489 | *p++ = 0; |
5685a696 |
490 | if (e->get(q, buf, gch->hashsz, 0) < gch->hashsz) |
e375fe33 |
491 | continue; |
12902a5c |
492 | if (*p == '*') |
e375fe33 |
493 | ff |= f_binary; |
12902a5c |
494 | else if (*p != ' ') |
e375fe33 |
495 | continue; |
12902a5c |
496 | p++; |
e375fe33 |
497 | |
498 | if (f & f_escape) { |
499 | DRESET(&dd); |
500 | getstring(0, p, &dd, 0); |
501 | p = dd.buf; |
502 | } |
503 | |
504 | if (fhash(p, ff, gch, buf + gch->hashsz)) { |
505 | moan("couldn't read `%s': %s", p, strerror(errno)); |
506 | rc = EXIT_FAILURE; |
507 | continue; |
508 | } |
509 | if (memcmp(buf, buf + gch->hashsz, gch->hashsz) != 0) { |
510 | if (ff & f_verbose) |
511 | fprintf(stderr, "FAIL %s\n", p); |
512 | else |
513 | moan("%s check failed for `%s'", gch->name, p); |
514 | nfail++; |
515 | rc = EXIT_FAILURE; |
516 | } else { |
517 | if (ff & f_verbose) |
518 | fprintf(stderr, "OK %s\n", p); |
519 | } |
520 | n++; |
521 | } |
522 | |
523 | dstr_destroy(&d); |
524 | dstr_destroy(&dd); |
525 | xfree(buf); |
526 | if ((f & f_verbose) && nfail) |
527 | moan("%lu of %lu file(s) failed %s check", nfail, n, gch->name); |
528 | else if (!n) |
529 | moan("no files checked"); |
530 | return (0); |
531 | } |
532 | |
5685a696 |
533 | static int dohash(const char *file, unsigned f, |
534 | const gchash *gch, const encops *e) |
e375fe33 |
535 | { |
536 | int rc = 0; |
537 | octet *p = xmalloc(gch->hashsz); |
538 | |
539 | if (fhash(file, f, gch, p)) { |
540 | moan("couldn't read `%s': %s", file ? file : "<stdin>", strerror(errno)); |
541 | rc = EXIT_FAILURE; |
542 | } else { |
5685a696 |
543 | e->put(p, gch->hashsz, stdout); |
e375fe33 |
544 | if (file) { |
545 | fputc(' ', stdout); |
546 | fputc(f & f_binary ? '*' : ' ', stdout); |
547 | if (f & f_escape) |
548 | putstring(stdout, file, 0); |
549 | else |
550 | fputs(file, stdout); |
551 | } |
552 | fputc('\n', stdout); |
553 | } |
554 | |
555 | xfree(p); |
556 | return (rc); |
557 | } |
558 | |
5685a696 |
559 | static int dofile(const char *file, unsigned f, |
560 | const gchash *gch, const encops *e) |
12902a5c |
561 | { |
5685a696 |
562 | return (f & f_check ? checkhash : dohash)(file, f, gch, e); |
12902a5c |
563 | } |
564 | |
5685a696 |
565 | static int hashfiles(const char *file, unsigned f, |
566 | const gchash *gch, const encops *e) |
e375fe33 |
567 | { |
568 | FILE *fp; |
569 | dstr d = DSTR_INIT; |
570 | int rc = 0; |
571 | int rrc; |
572 | |
573 | if (!file) |
574 | fp = stdin; |
575 | else if ((fp = fopen(file, f & f_raw ? "r" : "rb")) == 0) { |
576 | moan("couldn't open `%s': %s", file, strerror(errno)); |
577 | return (EXIT_FAILURE); |
578 | } |
579 | |
580 | for (;;) { |
581 | DRESET(&d); |
582 | if (getstring(fp, 0, &d, f & f_raw)) |
583 | break; |
5685a696 |
584 | if ((rrc = dofile(d.buf, f, gch, e)) != 0) |
e375fe33 |
585 | rc = rrc; |
586 | } |
587 | |
588 | return (rc); |
589 | } |
590 | |
5685a696 |
591 | static int hashsum(const char *file, unsigned f, |
592 | const gchash *gch, const encops *e) |
e375fe33 |
593 | { |
5685a696 |
594 | return (f & f_files ? hashfiles : dofile)(file, f, gch, e); |
e375fe33 |
595 | } |
596 | |
597 | /*----- Main driver -------------------------------------------------------*/ |
598 | |
599 | static void version(FILE *fp) |
600 | { |
601 | pquis(fp, "$, Catacomb version " VERSION "\n"); |
602 | } |
603 | |
604 | static void usage(FILE *fp) |
605 | { |
5af0f9cb |
606 | pquis(fp, "Usage: $ [-f0ebcv] [-a algorithm] [files...]\n"); |
e375fe33 |
607 | } |
608 | |
609 | static void help(FILE *fp, const gchash *gch) |
610 | { |
611 | version(fp); |
612 | fputc('\n', fp); |
613 | usage(fp); |
614 | pquis(fp, "\n\ |
615 | Generates or checks message digests on files. Options available:\n\ |
616 | \n\ |
617 | -h, --help Display this help message.\n\ |
618 | -V, --version Display program's version number.\n\ |
619 | -u, --usage Display a terse usage message.\n\ |
620 | \n\ |
621 | -a, --algorithm=ALG Use the message digest algorithm ALG.\n\ |
92c494ce |
622 | -E, --encoding=ENC Represent hashes using encoding ENC.\n\ |
e375fe33 |
623 | \n\ |
624 | -f, --files Read a list of file names from standard input.\n\ |
625 | -0, --null File names are null terminated, not plain text.\n\ |
626 | \n\ |
627 | -e, --escape Escape funny characters in filenames.\n\ |
628 | -c, --check Check message digests rather than emitting them.\n\ |
629 | -b, --binary When reading files, treat them as binary.\n\ |
630 | -v, --verbose Be verbose when checking digests.\n\ |
631 | \n\ |
92c494ce |
632 | For a list of hashing algorithms and encodings, type `$ --list'.\n\ |
e375fe33 |
633 | "); |
634 | if (gch) |
635 | fprintf(fp, "The default message digest algorithm is %s.\n", gch->name); |
636 | } |
637 | |
638 | int main(int argc, char *argv[]) |
639 | { |
640 | unsigned f = 0; |
641 | const gchash *gch = 0; |
5685a696 |
642 | const encops *e = &enctab[0]; |
e375fe33 |
643 | int rc; |
644 | |
645 | /* --- Initialization --- */ |
646 | |
647 | ego(argv[0]); |
648 | sub_init(); |
649 | |
650 | /* --- Choose a hash function from the name --- */ |
651 | |
652 | { |
653 | char *q = xstrdup(QUIS); |
654 | size_t len = strlen(q); |
655 | if (len > 3 && strcmp(q + len - 3, "sum") == 0) { |
656 | q[len - 3] = 0; |
657 | gch = gethash(q); |
658 | } |
659 | if (!gch) |
e9026a0a |
660 | gch = gethash("md5"); |
e375fe33 |
661 | xfree(q); |
662 | } |
663 | |
664 | /* --- Read options --- */ |
665 | |
666 | for (;;) { |
667 | static struct option opts[] = { |
668 | { "help", 0, 0, 'h' }, |
669 | { "verbose", 0, 0, 'V' }, |
670 | { "usage", 0, 0, 'u' }, |
671 | |
672 | { "algorithm", OPTF_ARGREQ, 0, 'a' }, |
673 | { "hash", OPTF_ARGREQ, 0, 'a' }, |
5685a696 |
674 | { "encoding", OPTF_ARGREQ, 0, 'E' }, |
e375fe33 |
675 | { "list", 0, 0, 'l' }, |
676 | |
677 | { "files", 0, 0, 'f' }, |
678 | { "find", 0, 0, 'f' }, |
679 | { "null", 0, 0, '0' }, |
680 | |
681 | { "escape", 0, 0, 'e' }, |
682 | { "check", 0, 0, 'c' }, |
683 | { "binary", 0, 0, 'b' }, |
684 | { "verbose", 0, 0, 'v' }, |
685 | |
686 | { 0, 0, 0, 0 } |
687 | }; |
5685a696 |
688 | int i = mdwopt(argc, argv, "hVu a:E:l f0 ecbv", opts, 0, 0, 0); |
e375fe33 |
689 | if (i < 0) |
690 | break; |
691 | |
692 | switch (i) { |
693 | case 'h': |
694 | help(stdout, gch); |
695 | exit(0); |
696 | case 'V': |
697 | version(stdout); |
698 | exit(0); |
699 | case 'u': |
700 | usage(stdout); |
701 | exit(0); |
702 | case 'a': |
703 | if ((gch = gethash(optarg)) == 0) |
704 | die(EXIT_FAILURE, "unknown hash algorithm `%s'", optarg); |
705 | f |= f_oddhash; |
706 | break; |
707 | case 'l': { |
708 | unsigned j; |
92c494ce |
709 | printf("Algorithms: "); |
e9026a0a |
710 | for (j = 0; ghashtab[j]; j++) { |
92c494ce |
711 | if (j) fputc(' ', stdout); |
e9026a0a |
712 | printf("%s", ghashtab[j]->name); |
e375fe33 |
713 | } |
714 | fputc('\n', stdout); |
92c494ce |
715 | printf("Encodings: "); |
716 | for (j = 0; enctab[j].name; j++) { |
717 | if (j) fputc(' ', stdout); |
718 | printf("%s", enctab[j].name); |
719 | } |
720 | fputc('\n', stdout); |
e375fe33 |
721 | exit(0); |
722 | } break; |
5685a696 |
723 | case 'E': |
724 | if ((e = getenc(optarg)) == 0) |
725 | die(EXIT_FAILURE, "unknown encoding `%s'", optarg); |
726 | f |= f_oddenc; |
727 | break; |
e375fe33 |
728 | case 'f': |
729 | f |= f_files; |
730 | break; |
731 | case '0': |
732 | f |= f_raw; |
733 | break; |
734 | case 'e': |
735 | f |= f_escape; |
736 | break; |
737 | case 'c': |
738 | f |= f_check; |
739 | break; |
740 | case 'b': |
741 | f |= f_binary; |
742 | break; |
743 | case 'v': |
744 | f |= f_verbose; |
745 | break; |
746 | default: |
747 | f |= f_bogus; |
748 | break; |
749 | } |
750 | } |
751 | |
752 | if (f & f_bogus) { |
753 | usage(stderr); |
754 | exit(EXIT_FAILURE); |
755 | } |
756 | argv += optind; |
757 | argc -= optind; |
758 | |
759 | /* --- Generate output --- */ |
760 | |
92c494ce |
761 | if (!argc) |
762 | rc = hashsum(0, f, gch, e); |
763 | else { |
e375fe33 |
764 | int i; |
765 | int rrc; |
92c494ce |
766 | |
e375fe33 |
767 | rc = 0; |
92c494ce |
768 | if (!(f & f_check)) { |
769 | if (f & f_oddhash) printf("#hash %s\n", gch->name); |
770 | if (f & f_oddenc) printf("#encoding %s\n", e->name); |
771 | if (f & f_escape) fputs("#escape\n", stdout); |
772 | } |
e375fe33 |
773 | for (i = 0; i < argc; i++) { |
5685a696 |
774 | if ((rrc = hashsum(argv[i], f, gch, e)) != 0) |
e375fe33 |
775 | rc = rrc; |
776 | } |
92c494ce |
777 | } |
e375fe33 |
778 | |
779 | return (rc); |
780 | } |
781 | |
782 | /*----- That's all, folks -------------------------------------------------*/ |