132 lines
2.7 KiB
C
132 lines
2.7 KiB
C
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/* Copyright (c) 1993, Microsoft Corporation, all rights reserved
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**
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** hostwire.c
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** Gidwanian Host<-->Wire format conversions.
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*/
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#include <windows.h>
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#define INCL_HOSTWIRE
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#include "ppputil.h"
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//**
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//
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// Call: HostToWireFormat16
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//
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// Returns: None
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//
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// Description: Will convert a 16 bit integer from host format to wire format
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//
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VOID
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HostToWireFormat16(
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IN WORD wHostFormat,
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IN OUT PBYTE pWireFormat
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)
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{
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*((PBYTE)(pWireFormat)+0) = (BYTE) ((DWORD)(wHostFormat) >> 8);
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*((PBYTE)(pWireFormat)+1) = (BYTE) (wHostFormat);
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}
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//**
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//
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// Call: HostToWireFormat16U
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//
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// Returns: None
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//
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// Description: Will convert a 16 bit integer from host format to wire format
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// (accepts unaligned wire data).
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//
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VOID
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HostToWireFormat16U(
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IN WORD wHostFormat,
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IN OUT PBYTE pWireFormat
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)
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{
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*((PBYTE )(pWireFormat)+0) = (BYTE) ((DWORD)(wHostFormat) >> 8);
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*((PBYTE )(pWireFormat)+1) = (BYTE) (wHostFormat);
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}
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//**
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//
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// Call: WireToHostFormat16
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//
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// Returns: WORD - Representing the integer in host format.
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//
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// Description: Will convert a 16 bit integer from wire format to host format
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//
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WORD
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WireToHostFormat16(
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IN PBYTE pWireFormat
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)
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{
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WORD wHostFormat = ((*((PBYTE)(pWireFormat)+0) << 8) +
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(*((PBYTE)(pWireFormat)+1)));
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return( wHostFormat );
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}
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//**
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//
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// Call: WireToHostFormat16
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//
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// Returns: WORD - Representing the integer in host format.
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//
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// Description: Will convert a 16 bit integer from wire format to host format
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// (accepts unaligned wire data)
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//
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WORD
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WireToHostFormat16U(
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IN PBYTE pWireFormat
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)
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{
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WORD wHostFormat = ((*((PBYTE )(pWireFormat)+0) << 8) +
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(*((PBYTE )(pWireFormat)+1)));
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return( wHostFormat );
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}
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//**
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//
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// Call: HostToWireFormat32
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//
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// Returns: nonr
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//
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// Description: Will convert a 32 bit integer from host format to wire format
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//
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VOID
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HostToWireFormat32(
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IN DWORD dwHostFormat,
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IN OUT PBYTE pWireFormat
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)
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{
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*((PBYTE)(pWireFormat)+0) = (BYTE) ((DWORD)(dwHostFormat) >> 24);
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*((PBYTE)(pWireFormat)+1) = (BYTE) ((DWORD)(dwHostFormat) >> 16);
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*((PBYTE)(pWireFormat)+2) = (BYTE) ((DWORD)(dwHostFormat) >> 8);
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*((PBYTE)(pWireFormat)+3) = (BYTE) (dwHostFormat);
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}
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//**
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//
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// Call: WireToHostFormat32
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//
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// Returns: DWORD - Representing the integer in host format.
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//
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// Description: Will convert a 32 bit integer from wire format to host format
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//
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DWORD
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WireToHostFormat32(
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IN PBYTE pWireFormat
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)
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{
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DWORD dwHostFormat = ((*((PBYTE)(pWireFormat)+0) << 24) +
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(*((PBYTE)(pWireFormat)+1) << 16) +
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(*((PBYTE)(pWireFormat)+2) << 8) +
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(*((PBYTE)(pWireFormat)+3) ));
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return( dwHostFormat );
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}
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