56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
/*******************************************************************/
|
|
/* Copyright(c) 1993 Microsoft Corporation */
|
|
/*******************************************************************/
|
|
|
|
//***
|
|
//
|
|
// Filename: utils.h
|
|
//
|
|
// Description: Contains miscellaneous utilities
|
|
//
|
|
// Author: Stefan Solomon (stefans) October 4, 1993.
|
|
//
|
|
// Revision History:
|
|
//
|
|
//***
|
|
|
|
#ifndef _UTILS_
|
|
#define _UTILS_
|
|
|
|
/*
|
|
* The following macros deal with on-the-wire short and long values
|
|
*
|
|
* On the wire format is big-endian i.e. a long value of 0x01020304 is
|
|
* represented as 01 02 03 04.
|
|
* Similarly a short value of 0x0102 is represented as 01 02.
|
|
*
|
|
* The host format is not assumed since it will vary from processor to
|
|
* processor.
|
|
*/
|
|
|
|
// Get a short from on-the-wire format to a USHORT in the host format
|
|
#define GETSHORT2USHORT(DstPtr, SrcPtr) \
|
|
*(PUSHORT)(DstPtr) = ((*((PUCHAR)(SrcPtr)+0) << 8) + \
|
|
(*((PUCHAR)(SrcPtr)+1) ))
|
|
|
|
// Get a long from on-the-wire format to a ULONG in the host format
|
|
#define GETLONG2ULONG(DstPtr, SrcPtr) \
|
|
*(PULONG)(DstPtr) = ((*((PUCHAR)(SrcPtr)+0) << 24) + \
|
|
(*((PUCHAR)(SrcPtr)+1) << 16) + \
|
|
(*((PUCHAR)(SrcPtr)+2) << 8) + \
|
|
(*((PUCHAR)(SrcPtr)+3) ))
|
|
|
|
// Put a USHORT from the host format to a short to on-the-wire format
|
|
#define PUTUSHORT2SHORT(DstPtr, Src) \
|
|
*((PUCHAR)(DstPtr)+0) = (UCHAR) ((USHORT)(Src) >> 8), \
|
|
*((PUCHAR)(DstPtr)+1) = (UCHAR)(Src)
|
|
|
|
// Put a ULONG from the host format to an array of 4 UCHARs on-the-wire format
|
|
#define PUTULONG2LONG(DstPtr, Src) \
|
|
*((PUCHAR)(DstPtr)+0) = (UCHAR) ((ULONG)(Src) >> 24), \
|
|
*((PUCHAR)(DstPtr)+1) = (UCHAR) ((ULONG)(Src) >> 16), \
|
|
*((PUCHAR)(DstPtr)+2) = (UCHAR) ((ULONG)(Src) >> 8), \
|
|
*((PUCHAR)(DstPtr)+3) = (UCHAR) (Src)
|
|
|
|
#endif // _UTILS_
|