reactos/sdk/lib/rossym_new/zwfile.c

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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: lib/rossym/zwfile.c
* PURPOSE: File I/O using native functions
*
* PROGRAMMERS: Ge van Geldorp (gvg@reactos.com)
*/
#include <precomp.h>
NTSTATUS RosSymStatus;
BOOLEAN
RosSymZwReadFile(PVOID FileContext, PVOID Buffer, ULONG Size)
{
//NTSTATUS Status;
IO_STATUS_BLOCK IoStatusBlock;
RosSymStatus = ZwReadFile(*((HANDLE *) FileContext),
NULL, NULL, NULL,
&IoStatusBlock,
Buffer,
Size,
NULL, NULL);
return NT_SUCCESS(RosSymStatus) && IoStatusBlock.Information == Size;
}
BOOLEAN
RosSymZwSeekFile(PVOID FileContext, ULONG_PTR Position)
{
//NTSTATUS Status;
IO_STATUS_BLOCK IoStatusBlock;
FILE_POSITION_INFORMATION NewPosition;
NewPosition.CurrentByteOffset.u.HighPart = 0;
NewPosition.CurrentByteOffset.u.LowPart = Position;
RosSymStatus = ZwSetInformationFile(*((HANDLE *) FileContext),
&IoStatusBlock,
(PVOID) &NewPosition,
sizeof(FILE_POSITION_INFORMATION),
FilePositionInformation);
return NT_SUCCESS(RosSymStatus);
}
/* EOF */