mirror of
https://github.com/FWGS/xash3d-fwgs
synced 2024-11-25 11:19:59 +01:00
70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
/*
|
|
crclib.c - generate crc stuff
|
|
Copyright (C) 2007 Uncle Mike
|
|
Copyright (C) 2019 a1batross
|
|
|
|
This program 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 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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.
|
|
*/
|
|
#pragma once
|
|
#ifndef CRCLIB_H
|
|
#define CRCLIB_H
|
|
|
|
#include "xash3d_types.h"
|
|
|
|
typedef struct
|
|
{
|
|
uint buf[4];
|
|
uint bits[2];
|
|
uint in[16];
|
|
} MD5Context_t;
|
|
|
|
#define CRC32_INIT_VALUE 0xFFFFFFFFUL
|
|
#define CRC32_XOR_VALUE 0xFFFFFFFFUL
|
|
|
|
static inline void CRC32_Init( uint32_t *pulCRC )
|
|
{
|
|
*pulCRC = CRC32_INIT_VALUE;
|
|
}
|
|
|
|
static inline uint32_t CRC32_Final( uint32_t pulCRC )
|
|
{
|
|
return pulCRC ^ CRC32_XOR_VALUE;
|
|
}
|
|
|
|
byte CRC32_BlockSequence( byte *base, int length, int sequence );
|
|
void CRC32_ProcessBuffer( uint32_t *pulCRC, const void *pBuffer, int nBuffer );
|
|
void CRC32_ProcessByte( uint32_t *pulCRC, byte ch );
|
|
|
|
/*
|
|
==================
|
|
MD5Init
|
|
|
|
Start MD5 accumulation. Set bit count to 0 and buffer to mysterious initialization constants.
|
|
==================
|
|
*/
|
|
static inline void MD5Init( MD5Context_t *ctx )
|
|
{
|
|
ctx->buf[0] = 0x67452301;
|
|
ctx->buf[1] = 0xefcdab89;
|
|
ctx->buf[2] = 0x98badcfe;
|
|
ctx->buf[3] = 0x10325476;
|
|
|
|
ctx->bits[0] = 0;
|
|
ctx->bits[1] = 0;
|
|
}
|
|
|
|
void MD5Update( MD5Context_t *ctx, const byte *buf, uint len );
|
|
void MD5Final( byte digest[16], MD5Context_t *ctx );
|
|
uint COM_HashKey( const char *string, uint hashSize );
|
|
char *MD5_Print( byte hash[16] );
|
|
|
|
#endif // CRCLIB_H
|