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Diffstat (limited to 'debug/crc32.c')
-rw-r--r-- | debug/crc32.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/debug/crc32.c b/debug/crc32.c new file mode 100644 index 00000000..4052a863 --- /dev/null +++ b/debug/crc32.c @@ -0,0 +1,45 @@ +/////////////////////////////////////////////////////////////////////////////// +// +/// \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; +} |