crc16.h

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#ifndef __CRC16_H__
#define __CRC16_H__
 
#include <wireshark.h>
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
 
/* Calculate the CCITT/ITU/CRC-16 16-bit CRC
 
   (parameters for this CRC are:
       Polynomial: x^16 + x^12 + x^5 + 1  (0x1021);
       Start value 0xFFFF;
       XOR result with 0xFFFF;
       First bit is LSB)
*/
 
WS_DLL_PUBLIC uint16_t crc16_ccitt(const uint8_t *buf, unsigned len);
 
WS_DLL_PUBLIC uint16_t crc16_x25_ccitt_seed(const uint8_t *buf, unsigned len, uint16_t seed);
 
WS_DLL_PUBLIC uint16_t crc16_ccitt_seed(const uint8_t *buf, unsigned len, uint16_t seed);
 
WS_DLL_PUBLIC uint16_t crc16_iso14443a(const uint8_t *buf, unsigned len);
 
WS_DLL_PUBLIC uint16_t crc16_usb(const uint8_t *buf, unsigned len);
 
WS_DLL_PUBLIC uint16_t crc16_0x5935(const uint8_t *buf, uint32_t len, uint16_t seed);
 
WS_DLL_PUBLIC uint16_t crc16_0x755B(const uint8_t *buf, uint32_t len, uint16_t seed);
 
WS_DLL_PUBLIC uint16_t crc16_0x9949_seed(const uint8_t *buf, unsigned len, uint16_t seed);
 
WS_DLL_PUBLIC uint16_t crc16_0x3D65_seed(const uint8_t *buf, unsigned len, uint16_t seed);
 
WS_DLL_PUBLIC uint16_t crc16_0x080F_seed(const uint8_t *buf, unsigned len, uint16_t seed);
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* crc16.h */