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xz-archive/debug/crc32.c
Lasse Collin 3b34851de1 Sort of garbage collection commit. :-| Many things are still
broken. API has changed a lot and it will still change a
little more here and there. The command line tool doesn't
have all the required changes to reflect the API changes, so
it's easy to get "internal error" or trigger assertions.
2008-08-28 22:53:15 +03:00

45 lines
1.3 KiB
C

///////////////////////////////////////////////////////////////////////////////
//
/// \file crc32.c
/// \brief Primitive CRC32 calculation tool
//
// Copyright (C) 2008 Lasse Collin
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
///////////////////////////////////////////////////////////////////////////////
#include "sysdefs.h"
#include <stdio.h>
int
main(void)
{
uint32_t crc = 0;
do {
uint8_t buf[BUFSIZ];
const size_t size = fread(buf, 1, sizeof(buf), stdin);
crc = lzma_crc32(buf, size, crc);
} while (!ferror(stdin) && !feof(stdin));
//printf("%08" PRIX32 "\n", crc);
// I want it little endian so it's easy to work with hex editor.
printf("%02" PRIX32 " ", crc & 0xFF);
printf("%02" PRIX32 " ", (crc >> 8) & 0xFF);
printf("%02" PRIX32 " ", (crc >> 16) & 0xFF);
printf("%02" PRIX32 " ", crc >> 24);
printf("\n");
return 0;
}