/*
* md5.h -- MD5 (message digest algorithm) interface
*/
#if defined(__GNUC__)
# if defined(__x86_64__) || defined(__i686__) || defined(__sparc__) || \
defined(__ia64__) || defined(__powerpc__) || defined(__i386__) || \
defined(_ARCH_PPC)
# define ALIGN(x) __attribute__ ((aligned (x)))
# else
# define ALIGN(x)
# endif
#elif defined(_MSC_VER)
# if defined(_M_X64) || defined(_M_IA64) || defined(_M_IX86) || defined(_M_ARM)
# define ALIGN(x) __declspec(align(x))
# endif
#else
# define ALIGN(x)
#endif
# ifdef OS_UNICOS
# define INT_TOO_BIG
# endif
# ifndef INT_TOO_BIG
typedef unsigned int uint32;
# endif
# ifdef INT_TOO_BIG
/*
* For machines without 32 bit ints (64, not 16!) this definition
* of uint32 suffices for the md5 code. It masks itself down to
* 32 bits when used as a value.
*
* NB: because += and + return values not masked, this code is not
* usable for the count64 implementation below. INT_TOO_BIG should
* always be used with a real P4INT64!
*/
typedef unsigned int xint;
class uint32 {
public:
uint32() {}
operator xint() const { return value & 0xffffffff; }
uint32( const P4INT64 x ) { value = x; }
void operator =( const xint x ) { value = x; }
void operator =( const uint32 &x ) { value = x.value; }
xint operator +=( const xint x ) { return value += x; }
xint operator +( const xint x ) const { return value + x; }
private:
xint value;
} ;
# endif
# ifdef P4INT64
typedef P4INT64 count64;
# else
/*
* For machines without a 64 bit long long, this definition of count64
* suffices for the md5 code. >> only works for 0 and 32!
*/
class count64 {
public:
uint32 operator >>( int s ) { return s ? hi32 : low32; }
void operator =( unsigned int x )
{ low32 = x; hi32 = 0; }
void operator +=( unsigned int x )
{ uint32 t = low32; if( ( low32 += x ) < t ) hi32 += 1; }
private:
uint32 low32;
uint32 hi32;
} ;
# endif
enum BufSelector {
USE_INBUF,
USE_ODDBUF,
USE_WORKBUF
};
typedef union {
unsigned char *c;
uint32 *i;
} MD5BufUnion;
/*
* MD5 - compute md5 checksum given a bunch of blocks of data
*/
class MD5 {
public:
MD5();
void Update( const StrPtr &buf );
void Final( StrBuf &output );
void Final( unsigned char digest[16] );
private:
void Transform();
count64 bits; // total
uint32 ALIGN(8) md5[4]; // result of Transform()
uint32 ALIGN(8) work[16]; // work for Transform()
unsigned char ALIGN(8) oddbuf[64]; // to span Update() calls
unsigned char *inbuf; // pointer to incoming data
int bytes; // mod 64
BufSelector bufSelector; // where to point inbuf at
};
# undef ALIGN
# |
Change |
User |
Description |
Committed |
|
#1
|
15902 |
Matt Attaway |
A second renaming that I will not obliterate as a badge of shame |
|
|
//guest/perforce_software/p4/2014_1/support/md5.h |
#1
|
15901 |
Matt Attaway |
Clean up code to fit modern Workshop naming standards |
|
|
//guest/perforce_software/p4/2014.1/support/md5.h |
#1
|
12188 |
Matt Attaway |
Move 'main' p4 into a release specific directory in prep for new releases |
|
|
//guest/perforce_software/p4/support/md5.h |
#1
|
9129 |
Matt Attaway |
Initial commit of the 2014.1 p4/p4api source code |
|
|