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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 09:25:10 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 09:25:10 +0000 |
| commit | 5dced3d1b3deca80e01415a2e35dc7972dcbfae7 (patch) | |
| tree | 6a403684e0978f0287d7f0ec0e5aab1fd31a59e1 /lib/ext2fs/crc16.h | |
| parent | Initial commit. (diff) | |
| download | e2fsprogs-5dced3d1b3deca80e01415a2e35dc7972dcbfae7.tar.xz e2fsprogs-5dced3d1b3deca80e01415a2e35dc7972dcbfae7.zip | |
Adding upstream version 1.47.0.upstream/1.47.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/ext2fs/crc16.h')
| -rw-r--r-- | lib/ext2fs/crc16.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/lib/ext2fs/crc16.h b/lib/ext2fs/crc16.h new file mode 100644 index 0000000..322e68d --- /dev/null +++ b/lib/ext2fs/crc16.h @@ -0,0 +1,26 @@ +/* + * crc16.h - CRC-16 routine + * + * Implements the standard CRC-16: + * Width 16 + * Poly 0x8005 (x16 + x15 + x2 + 1) + * Init 0 + * + * Copyright (c) 2005 Ben Gardner <bgardner@wabtec.com> + * + * This source code is licensed under the GNU General Public License, + * Version 2. See the file COPYING for more details. + */ + +#ifndef __CRC16_H +#define __CRC16_H + +/* for an unknown reason, PPC treats __u16 as signed and keeps doing sign + * extension on the value. Instead, use only the low 16 bits of an + * unsigned int for holding the CRC value to avoid this. + */ +typedef unsigned int crc16_t; + +extern crc16_t ext2fs_crc16(crc16_t crc, const void *buffer, unsigned int len); + +#endif /* __CRC16_H */ |