93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
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/*++
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Copyright (c) 1998 Microsoft Corporation
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Module Name:
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csrdosdv.c
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Abstract:
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This module implements functions that are used by the DefineDosDevice API
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to communicate with csrss.
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Author:
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Michael Zoran (mzoran) 21-Jun-1998
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Revision History:
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--*/
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#include "basedll.h"
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NTSTATUS
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CsrBasepDefineDosDevice(
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DWORD dwFlags,
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PUNICODE_STRING pDeviceName,
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PUNICODE_STRING pTargetPath
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)
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{
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#if defined(BUILD_WOW6432)
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return NtWow64CsrBasepDefineDosDevice(dwFlags,
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pDeviceName,
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pTargetPath
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);
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#else
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BASE_API_MSG m;
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PBASE_DEFINEDOSDEVICE_MSG a = &m.u.DefineDosDeviceApi;
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PCSR_CAPTURE_HEADER p;
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ULONG PointerCount, n;
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if (0 == pTargetPath->MaximumLength) {
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PointerCount = 1;
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n = pDeviceName->MaximumLength;
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}
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else {
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PointerCount = 2;
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n = pDeviceName->MaximumLength + pTargetPath->MaximumLength;
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}
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p = CsrAllocateCaptureBuffer( PointerCount, n );
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if (p == NULL) {
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return STATUS_NO_MEMORY;
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}
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a->Flags = dwFlags;
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a->DeviceName.MaximumLength =
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(USHORT)CsrAllocateMessagePointer( p,
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pDeviceName->MaximumLength,
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(PVOID *)&a->DeviceName.Buffer
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);
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RtlUpcaseUnicodeString( &a->DeviceName, pDeviceName, FALSE );
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if (pTargetPath->Length != 0) {
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a->TargetPath.MaximumLength =
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(USHORT)CsrAllocateMessagePointer( p,
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pTargetPath->MaximumLength,
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(PVOID *)&a->TargetPath.Buffer
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);
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RtlCopyUnicodeString( &a->TargetPath, pTargetPath );
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}
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else {
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RtlInitUnicodeString( &a->TargetPath, NULL );
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}
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CsrClientCallServer( (PCSR_API_MSG)&m,
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p,
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CSR_MAKE_API_NUMBER( BASESRV_SERVERDLL_INDEX,
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BasepDefineDosDevice
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),
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sizeof( *a )
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);
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CsrFreeCaptureBuffer( p );
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return m.ReturnValue;
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#endif
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}
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