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140 lines
3.4 KiB
140 lines
3.4 KiB
/**********************************************************************/
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/** Microsoft Windows/NT **/
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/** Copyright(c) Microsoft Corp., 1992 **/
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/**********************************************************************/
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/*
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NCPAVALD.C
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This program is highly LANMan/NT specific. Its purpose is to
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utilize the Bowser driver to determine if a Domain name is
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actually valid on the NetBIOS network at the time.
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If you need to know how all this works, talk to LarryO and the
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base net folks, don't call me.
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FILE HISTORY:
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DavidHov 2/2/92 Created
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*/
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#include <nt.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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#include <ntrtl.h>
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#include <ntddbrow.h>
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#include <windows.h>
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// BUGBUG: This inclusion specifically references the REAL "string.h"
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// instead of the hacked NETUI version...
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#include <crt\string.h>
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#include "ncpavald.h"
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static HANDLE OpenBowser ( VOID )
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{
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NTSTATUS ntstatus;
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UNICODE_STRING DeviceName;
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IO_STATUS_BLOCK IoStatusBlock;
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OBJECT_ATTRIBUTES ObjectAttributes;
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HANDLE WsDgReceiverDeviceHandle = NULL ;
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RtlInitUnicodeString(&DeviceName, DD_BROWSER_DEVICE_NAME_U);
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InitializeObjectAttributes(
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&ObjectAttributes,
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&DeviceName,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL
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);
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ntstatus = NtOpenFile(
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&WsDgReceiverDeviceHandle,
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SYNCHRONIZE,
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&ObjectAttributes,
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&IoStatusBlock,
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FILE_SHARE_VALID_FLAGS,
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FILE_SYNCHRONOUS_IO_NONALERT
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);
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if (NT_SUCCESS(ntstatus)) {
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ntstatus = IoStatusBlock.Status;
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}
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if (! NT_SUCCESS(ntstatus)) {
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if (WsDgReceiverDeviceHandle) {
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NtClose( WsDgReceiverDeviceHandle );
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}
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WsDgReceiverDeviceHandle = NULL;
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}
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return WsDgReceiverDeviceHandle ;
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}
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LONG ValidateDomainName ( const WCHAR * pszDomainName )
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{
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NTSTATUS ntstatus;
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IO_STATUS_BLOCK IoStatusBlock;
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PLMDR_REQUEST_PACKET Drrp;
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LONG cbNameSize = (wcslen( pszDomainName ) + 1) * sizeof (WCHAR) ;
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HANDLE BowserDeviceHandle = OpenBowser() ;
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if ( BowserDeviceHandle == NULL ) {
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return ERROR_FILE_NOT_FOUND ;
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}
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Drrp = LocalAlloc(
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LMEM_ZEROINIT,
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sizeof(LMDR_REQUEST_PACKET) + cbNameSize
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);
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if (Drrp == NULL) {
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return ERROR_NOT_ENOUGH_MEMORY;
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}
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Drrp->Version = LMDR_REQUEST_PACKET_VERSION;
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Drrp->Parameters.AddDelName.Type = OtherDomain ;
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Drrp->Parameters.AddDelName.DgReceiverNameLength = cbNameSize ;
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wcscpy( Drrp->Parameters.AddDelName.Name, pszDomainName );
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ntstatus = NtDeviceIoControlFile(
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BowserDeviceHandle,
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NULL,
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NULL,
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NULL,
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&IoStatusBlock,
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IOCTL_LMDR_ADD_NAME,
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Drrp,
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sizeof(LMDR_REQUEST_PACKET) +
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Drrp->Parameters.AddDelName.DgReceiverNameLength,
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NULL,
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0
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);
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if (NT_SUCCESS(ntstatus)) {
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ntstatus = IoStatusBlock.Status;
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}
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NtClose( BowserDeviceHandle ) ;
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LocalFree(Drrp);
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return NT_SUCCESS( ntstatus )
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? 0
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: ERROR_INVALID_NAME ;
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}
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// End of NCPAVALD.C
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