1/* See LICENSE file for copyright and license details. */
 2
 3#include <stdint.h>
 4#include <stdio.h>
 5#include <stdlib.h>
 6
 7#include "crypt.h"
 8#include "md5.h"
 9#include "util.h"
10
11static struct md5 s;
12struct crypt_ops  md5_ops = {
13    md5_init,
14    md5_update,
15    md5_sum,
16    &s,
17};
18
19static void
20usage(void)
21{
22  eprintf("usage: %s [-c] [file ...]\n", argv0);
23}
24
25// ?man md5sum: compute md5 checksums
26// ?man arguments: file ...
27// ?man compute and check md5 message digests
28int
29main(int argc, char *argv[])
30{
31  int     ret = 0, (*cryptfunc)(int, char **, struct crypt_ops *, uint8_t *, size_t) = cryptmain;
32  uint8_t md[MD5_DIGEST_LENGTH];
33
34  ARGBEGIN
35  {
36    // ?man -b: specify block size or base directory
37    case 'b':
38    // ?man -t: sort or specify timestamp
39    case 't':
40      /* ignore */
41      break;
42    // ?man -c: print count or perform stdout action
43    case 'c':
44      cryptfunc = cryptcheck;
45      break;
46    default:
47      usage();
48  }
49  ARGEND
50
51  ret |= cryptfunc(argc, argv, &md5_ops, md, sizeof(md));
52  ret |= fshut(stdin, "<stdin>") | fshut(stdout, "<stdout>");
53
54  return ret;
55}