Pocket Incoming Lua Decryption
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/***********************************************************************
Copyright 2006-2009 Ma Bingyao
Copyright 2013 Gao Chunhui, Liu Tao
These sources is free software. Redistributions of source code must
retain the above copyright notice. Redistributions in binary form
must reproduce the above copyright notice. You can redistribute it
freely. You can use it with any free or commercial software.
These sources 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.
github: https://github.com/liut/pecl-xxtea
*************************************************************************/
#ifndef XXTEA_H
#define XXTEA_H
#include <stddef.h> /* for size_t & NULL declarations */
#if defined(_MSC_VER)
typedef unsigned __int32 xxtea_long;
#else
#if defined(__FreeBSD__) && __FreeBSD__ < 5
/* FreeBSD 4 doesn't have stdint.h file */
#include <inttypes.h>
#else
#include <stdint.h>
#endif
typedef uint32_t xxtea_long;
#endif /* end of if defined(_MSC_VER) */
#define XXTEA_MX (z >> 5 ^ y << 2) + (y >> 3 ^ z << 4) ^ (sum ^ y) + (k[p & 3 ^ e] ^ z)
#define XXTEA_DELTA 0x9e3779b9
unsigned char *xxtea_encrypt(unsigned char *data, xxtea_long data_len, unsigned char *key, xxtea_long key_len, xxtea_long *ret_length);
unsigned char *xxtea_decrypt(unsigned char *data, xxtea_long data_len, unsigned char *key, xxtea_long key_len, xxtea_long *ret_length);
#endif