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/* chksum.c -- compute a checksum
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2017 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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 2 of
the License, or (at your option) any later version.
The LZO 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include <lzo/lzoconf.h>
/* utility layer */
#define WANT_LZO_MALLOC 1
#include "examples/portab.h"
/*************************************************************************
//
**************************************************************************/
int main(int argc, char *argv[])
{
lzo_bytep block;
lzo_uint block_size;
lzo_uint32_t adler, crc;
if (argc < 0 && argv == NULL) /* avoid warning about unused args */
return 0;
if (lzo_init() != LZO_E_OK)
{
printf("lzo_init() failed !!!\n");
return 4;
}
/* prepare the block */
block_size = 128 * 1024L;
block = (lzo_bytep) lzo_malloc(block_size);
if (block == NULL)
{
printf("out of memory\n");
return 3;
}
lzo_memset(block, 0, block_size);
/* adler32 checksum */
adler = lzo_adler32(0, NULL, 0);
adler = lzo_adler32(adler, block, block_size);
if (adler != 0x001e0001UL)
{
printf("adler32 checksum error !!! (0x%08lx)\n", (long) adler);
return 2;
}
/* crc32 checksum */
crc = lzo_crc32(0, NULL, 0);
crc = lzo_crc32(crc, block, block_size);
if (crc != 0x7ee8cdcdUL)
{
printf("crc32 checksum error !!! (0x%08lx)\n", (long) crc);
return 1;
}
lzo_free(block);
printf("Checksum test passed.\n");
return 0;
}
/* vim:set ts=4 sw=4 et: */
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