mirror of
https://github.com/nillerusr/source-engine.git
synced 2024-12-23 06:36:54 +00:00
63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
//========= Copyright Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose: Generic MD5 hashing algo
|
|
//
|
|
//=============================================================================//
|
|
|
|
#ifndef CHECKSUM_MD5_H
|
|
#define CHECKSUM_MD5_H
|
|
|
|
#ifdef _WIN32
|
|
#pragma once
|
|
#endif
|
|
|
|
// 16 bytes == 128 bit digest
|
|
#define MD5_DIGEST_LENGTH 16
|
|
#define MD5_BIT_LENGTH ( MD5_DIGEST_LENGTH * sizeof(unsigned char) )
|
|
struct MD5Value_t
|
|
{
|
|
unsigned char bits[MD5_DIGEST_LENGTH];
|
|
|
|
void Zero();
|
|
bool IsZero() const;
|
|
|
|
bool operator==( const MD5Value_t &src ) const;
|
|
bool operator!=( const MD5Value_t &src ) const;
|
|
|
|
};
|
|
|
|
// MD5 Hash
|
|
typedef struct
|
|
{
|
|
unsigned int buf[4];
|
|
unsigned int bits[2];
|
|
unsigned char in[64];
|
|
} MD5Context_t;
|
|
|
|
void MD5Init( MD5Context_t *context );
|
|
void MD5Update( MD5Context_t *context, unsigned char const *buf, unsigned int len );
|
|
void MD5Final( unsigned char digest[ MD5_DIGEST_LENGTH ], MD5Context_t *context );
|
|
|
|
char *MD5_Print(unsigned char *digest, int hashlen );
|
|
|
|
/// Convenience wrapper to calculate the MD5 for a buffer, all in one step, without
|
|
/// bothering with the context object.
|
|
void MD5_ProcessSingleBuffer( const void *p, int len, MD5Value_t &md5Result );
|
|
|
|
unsigned int MD5_PseudoRandom(unsigned int nSeed);
|
|
|
|
/// Returns true if the values match.
|
|
bool MD5_Compare( const MD5Value_t &data, const MD5Value_t &compare );
|
|
|
|
inline bool MD5Value_t::operator==( const MD5Value_t &src ) const
|
|
{
|
|
return MD5_Compare( *this, src );
|
|
}
|
|
|
|
inline bool MD5Value_t::operator!=( const MD5Value_t &src ) const
|
|
{
|
|
return !MD5_Compare( *this, src );
|
|
}
|
|
|
|
#endif // CHECKSUM_MD5_H
|