145 lines
3.1 KiB
C
145 lines
3.1 KiB
C
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/*++
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Copyright (c) 1990 Microsoft Corporation
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Module Name:
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srvacces.c
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Abstract:
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This file contains the Access Pack support routines
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Author:
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Gregory Wilson (gregoryw) 28-Jul-1993
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Revision History:
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--*/
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#include "basesrv.h"
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BOOL
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FirstSoundSentry(
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UINT uVideoMode
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);
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BOOL (*_UserSoundSentry)(
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UINT uVideoMode
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) = FirstSoundSentry;
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BOOL
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FailSoundSentry(
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UINT uVideoMode
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)
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{
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//
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// If the real user soundsentry routine cannot be found, deny access
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//
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return( FALSE );
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}
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BOOL
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FirstSoundSentry(
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UINT uVideoMode
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)
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{
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UNICODE_STRING WinSrvString = RTL_CONSTANT_STRING(L"winsrv");
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STRING UserSoundSentryString = RTL_CONSTANT_STRING("_UserSoundSentry");
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HANDLE UserServerModuleHandle;
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NTSTATUS Status;
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BOOL (*pfnSoundSentryProc)(UINT) = FailSoundSentry; // default to failure
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Status = LdrGetDllHandle(
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NULL,
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NULL,
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&WinSrvString,
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&UserServerModuleHandle
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);
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if ( NT_SUCCESS(Status) ) {
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Status = LdrGetProcedureAddress(
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UserServerModuleHandle,
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&UserSoundSentryString,
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0L,
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(PVOID *)&pfnSoundSentryProc
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);
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}
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_UserSoundSentry = pfnSoundSentryProc;
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return( _UserSoundSentry( uVideoMode ) );
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}
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//
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// There are no uses of this, so remove it regardless of the ifdef.
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//
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#if 0 // defined(CONSOLESOUNDSENTRY)
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CONST STRING ConsoleSoundSentryString = RTL_CONSTANT_STRING("_ConsoleSoundSentry");
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BOOL
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FirstConsoleSoundSentry(
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UINT uVideoMode
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);
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BOOL (*_ConsoleSoundSentry)(
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UINT uVideoMode
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) = FirstConsoleSoundSentry;
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BOOL
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FirstConsoleSoundSentry(
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UINT uVideoMode
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)
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{
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HANDLE ConsoleServerModuleHandle;
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NTSTATUS Status;
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BOOL (*pfnSoundSentryProc)(UINT) = FailSoundSentry; // default to failure
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Status = LdrGetDllHandle(
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NULL,
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NULL,
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&WinSrvString,
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(PVOID *)&ConsoleServerModuleHandle
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);
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if ( NT_SUCCESS(Status) ) {
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Status = LdrGetProcedureAddress(
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ConsoleServerModuleHandle,
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&ConsoleSoundSentryString,
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0L,
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(PVOID *)&pfnSoundSentryProc
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);
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}
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_ConsoleSoundSentry = pfnSoundSentryProc;
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return( _ConsoleSoundSentry( uVideoMode ) );
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}
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#endif
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ULONG
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BaseSrvSoundSentryNotification(
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IN OUT PCSR_API_MSG m,
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IN OUT PCSR_REPLY_STATUS ReplyStatus
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)
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{
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PBASE_SOUNDSENTRY_NOTIFICATION_MSG a =
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(PBASE_SOUNDSENTRY_NOTIFICATION_MSG)&m->u.ApiMessageData;
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BOOL SoundSentryStatus;
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//
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// The possible values for a->VideoMode are:
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// 0 : windows mode
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// 1 : full screen mode
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// 2 : full screen graphics mode
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//
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SoundSentryStatus = _UserSoundSentry( a->VideoMode );
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if (SoundSentryStatus) {
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return( (ULONG)STATUS_SUCCESS );
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} else {
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return( (ULONG)STATUS_ACCESS_DENIED );
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}
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ReplyStatus; // get rid of unreferenced parameter warning message
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}
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