9b06720f62
Previously, it was not possible to use sha1sum test.c | sha1sum -c because the program would not differenciate between an empty argument and a non-specified argument. Moreover, why not allow this? sha1sum -c hashlist1 hashlist2 Digging deeper I found that using function pointers and a modification in the crypt-backend might simplify the program a lot by passing the argument-list to both cryptmain and cryptcheck. Allowing more than one list-file to be specified is also consistent with what the other implementations support, so we not only have simpler code, we also do not silently break if there's a script around passing multiple files to check.
39 lines
649 B
C
39 lines
649 B
C
/* See LICENSE file for copyright and license details. */
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#include <stdint.h>
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#include <stdio.h>
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#include "crypt.h"
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#include "sha256.h"
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#include "util.h"
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static struct sha256 s;
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struct crypt_ops sha256_ops = {
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sha256_init,
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sha256_update,
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sha256_sum,
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&s,
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};
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static void
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usage(void)
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{
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eprintf("usage: %s [-c] [file ...]\n", argv0);
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}
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int
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main(int argc, char *argv[])
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{
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int (*cryptfunc)(int, char **, struct crypt_ops *, uint8_t *, size_t) = cryptmain;
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uint8_t md[SHA256_DIGEST_LENGTH];
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ARGBEGIN {
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case 'c':
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cryptfunc = cryptcheck;
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break;
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default:
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usage();
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} ARGEND;
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return cryptfunc(argc, argv, &sha256_ops, md, sizeof(md));
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}
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