reactos/win32ss/user/ntuser/misc/copy.c

56 lines
1.1 KiB
C
Raw Normal View History

#include "win32k.h"
_IRQL_requires_max_(APC_LEVEL)
NTSTATUS
_MmCopyFromCaller(
_Out_writes_bytes_all_(Bytes) PVOID Target,
_In_reads_bytes_(Bytes) PVOID Source,
_In_ UINT Bytes)
{
NTSTATUS Status;
PAGED_CODE();
ASSERT(ExGetPreviousMode() == UserMode);
Status = STATUS_SUCCESS;
_SEH2_TRY
{
ProbeForRead(Source, Bytes, 1);
RtlCopyMemory(Target, Source, Bytes);
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
Status = _SEH2_GetExceptionCode();
}
_SEH2_END;
return Status;
}
_IRQL_requires_max_(APC_LEVEL)
NTSTATUS
_MmCopyToCaller(
_Out_writes_bytes_all_(Bytes) PVOID Target,
_In_reads_bytes_(Bytes) PVOID Source,
_In_ UINT Bytes)
{
NTSTATUS Status;
PAGED_CODE();
ASSERT(ExGetPreviousMode() == UserMode);
Status = STATUS_SUCCESS;
_SEH2_TRY
{
ProbeForWrite(Target, Bytes, 1);
RtlCopyMemory(Target, Source, Bytes);
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
Status = _SEH2_GetExceptionCode();
}
_SEH2_END;
return Status;
}