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//
// srecord - The "srecord" program.
// Copyright (C) 2007, 2008 Peter Miller
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or (at
// your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
#include <cstdio>
#include <cstdlib>
#include <unistd.h>
#include <lib/crc16.h>
#include <lib/progname.h>
#include <lib/quit.h>
static void
usage()
{
fprintf(stderr, "Usage: [ -av ] %s\n", progname_get());
exit(1);
}
int
main(int argc, char **argv)
{
progname_set(argv[0]);
crc16::seed_mode_t seed_mode = crc16::seed_mode_ccitt;
bool augment = true;
for (;;)
{
int c = getopt(argc, argv, "abcx");
if (c == EOF)
break;
switch (c)
{
case 'a':
augment = !augment;
break;
case 'b':
seed_mode = crc16::seed_mode_broken;
break;
case 'c':
seed_mode = crc16::seed_mode_ccitt;
break;
case 'x':
seed_mode = crc16::seed_mode_xmodem;
break;
default:
usage();
// NOTREACHED
}
}
if (optind != argc)
usage();
crc16 check(seed_mode, augment);
for (;;)
{
char buffer[1024];
int n = read(0, buffer, sizeof(buffer));
if (n < 0)
quit_default.fatal_error_errno("read stdin");
if (!n)
break;
check.nextbuf(buffer, n);
}
printf("0x%04X\n", check.get());
return 0;
}
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