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/* See LICENSE file for copyright and license details. */
#include "common.h"
#include "arg.h"
#include <alloca.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static void
usage(void)
{
/*
* Since our main in this file validates the arguments,
* we can add -a here but leave it left out in common.c,
* which we like because the other commands do not have -a.
*/
fprintf(stderr, "usage: %s [-u | -l | -b | -c] [-a bits] [-R rate] [-C capacity] "
"[-N output-size] [-S state-size] [-W word-size] "
"[-Z squeeze-count] [-vxz] [file ...]\n", argv0);
exit(2);
}
int
main(int argc, char *argv[])
{
int bits = 224, orig_argc = argc;
char **orig_argv = alloca((argc + 1) * sizeof(*argv));
struct libkeccak_generalised_spec spec;
libkeccak_generalised_spec_initialise(&spec);
memcpy(orig_argv, argv, (argc + 1) * sizeof(*argv));
ARGBEGIN {
case 'R':
case 'C':
case 'N':
case 'O':
case 'S':
case 'B':
case 'W':
case 'Z':
(void) EARGF(usage());
break;
case 'u':
case 'l':
case 'b':
case 'c':
case 'v':
case 'x':
case 'z':
break;
case 'a':
bits = atoi(EARGF(usage()));
if (bits != 224 && bits != 256 && bits != 384 && bits != 512) {
fprintf(stderr, "%s: valid arguments for -a are 224 (default), 256, 384, and 512\n", argv0);
return 2;
}
break;
default:
usage();
} ARGEND;
libkeccak_spec_sha3((struct libkeccak_spec *)&spec, bits);
return run(orig_argc, orig_argv, &spec, LIBKECCAK_SHA3_SUFFIX, 1);
}
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