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| author | Guy Harris <guy@alum.mit.edu> | 2014-08-08 08:57:31 -0700 |
|---|---|---|
| committer | Guy Harris <guy@alum.mit.edu> | 2014-08-08 15:58:06 +0000 |
| commit | 22ad90cdc8c4487072e2152cbca8112afaeaa59f (patch) | |
| tree | 868fb343a8dcf01d5ae625f4fa91dc3d3d58c5b1 /wsutil/crc16.h | |
| parent | 8da72cd43dcd597c9f03754831d55211a17f077c (diff) | |
| download | wireshark-22ad90cdc8c4487072e2152cbca8112afaeaa59f.tar.gz | |
Add routines for CRC-16 with a polynomial of 0x3D65.
There are routines that take a buffer and a length and that take a
tvbuff, offset, and length; use those routines in the DNP dissector
(which no longer needs its own table and loop), and use the tvbuff
routine instead of calling tvb_get_ptr().
Change-Id: Ic67b0f3b65b94ea47c0fdc2f3d3b6f88df77f9c6
Reviewed-on: https://code.wireshark.org/review/3505
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Diffstat (limited to 'wsutil/crc16.h')
| -rw-r--r-- | wsutil/crc16.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/wsutil/crc16.h b/wsutil/crc16.h index 91dbec0ffb..53a8305e09 100644 --- a/wsutil/crc16.h +++ b/wsutil/crc16.h @@ -88,6 +88,15 @@ WS_DLL_PUBLIC guint16 crc16_0x755B(const guint8 *buf, guint32 len, guint16 seed) */ WS_DLL_PUBLIC guint16 crc16_0x9949_seed(const guint8 *buf, guint len, guint16 seed); +/** Computes CRC16 checksum for the given data with the polynom 0x3D65 using + * precompiled CRC table + * @param buf a pointer to a buffer of the given length + * @param len the length of the given buffer + * @param seed The seed to use. + * @return the CRC16 checksum for the buffer + */ +WS_DLL_PUBLIC guint16 crc16_0x3D65_seed(const guint8 *buf, guint len, guint16 seed); + #ifdef __cplusplus } #endif /* __cplusplus */ |