windows-nt/Source/XPSP1/NT/base/ntsetup/win95upg/common/regw32d/utilwinc.c

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2020-09-26 03:20:57 -05:00
//
// UTILWINC.C
//
// Copyright (C) Microsoft Corporation, 1995
//
// Operating system interfaces for Windows environments.
//
#include "pch.h"
BOOL
INTERNAL
RgReadFile(
HFILE hFile,
LPVOID lpBuffer,
UINT ByteCount
)
{
UINT BytesRead;
BytesRead = _lread(hFile, lpBuffer, ByteCount);
return ByteCount == BytesRead;
}
BOOL
INTERNAL
RgWriteFile(
HFILE hFile,
LPVOID lpBuffer,
UINT ByteCount
)
{
UINT BytesWritten;
BytesWritten = _lwrite(hFile, lpBuffer, ByteCount);
return ByteCount == BytesWritten;
}
#ifndef FILE_BEGIN
#define FILE_BEGIN SEEK_SET
#endif
BOOL
INTERNAL
RgSeekFile(
HFILE hFile,
LONG FileOffset
)
{
LONG NewFileOffset;
NewFileOffset = _llseek(hFile, FileOffset, FILE_BEGIN);
return FileOffset == NewFileOffset;
}