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reactos/dll/win32/kernel32/client/vdm.c
Hermès Bélusca-Maïto 1e4253f2c0 [KERNEL32] 
This is the first of a series of commits aiming at making kernel32 using the new CSR messaging structures for communicating with Server Dlls.

svn path=/branches/ros-csrss/; revision=57666
2012-11-02 18:00:47 +00:00

883 lines
21 KiB
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/*
* PROJECT: ReactOS Win32 Base API
* LICENSE: GPL - See COPYING in the top level directory
* FILE: dll/win32/kernel32/client/vdm.c
* PURPOSE: Virtual Dos Machine (VDM) Support
* PROGRAMMERS: Alex Ionescu (alex.ionescu@reactos.org)
*/
/* INCLUDES *******************************************************************/
#include <k32.h>
#define NDEBUG
#include <debug.h>
/* TYPES **********************************************************************/
typedef struct _ENV_INFO
{
ULONG NameType;
ULONG NameLength;
PWCHAR Name;
} ENV_INFO, *PENV_INFO;
/* GLOBALS ********************************************************************/
ENV_INFO BasepEnvNameType[] =
{
{3, sizeof(L"PATH"), L"PATH"},
{2, sizeof(L"WINDIR"), L"WINDIR"},
{2, sizeof(L"SYSTEMROOT"), L"SYSTEMROOT"},
{3, sizeof(L"TEMP"), L"TEMP"},
{3, sizeof(L"TMP"), L"TMP"},
};
UNICODE_STRING BaseDotComSuffixName = RTL_CONSTANT_STRING(L".com");
UNICODE_STRING BaseDotPifSuffixName = RTL_CONSTANT_STRING(L".pif");
UNICODE_STRING BaseDotExeSuffixName = RTL_CONSTANT_STRING(L".exe");
/* FUNCTIONS ******************************************************************/
ULONG
WINAPI
BaseIsDosApplication(IN PUNICODE_STRING PathName,
IN NTSTATUS Status)
{
UNICODE_STRING String;
/* Is it a .com? */
String.Length = BaseDotComSuffixName.Length;
String.Buffer = &PathName->Buffer[(PathName->Length - String.Length) / sizeof(WCHAR)];
if (RtlEqualUnicodeString(&String, &BaseDotComSuffixName, TRUE)) return 2;
/* Is it a .pif? */
String.Length = BaseDotPifSuffixName.Length;
String.Buffer = &PathName->Buffer[(PathName->Length - String.Length) / sizeof(WCHAR)];
if (RtlEqualUnicodeString(&String, &BaseDotPifSuffixName, TRUE)) return 3;
/* Is it an exe? */
String.Length = BaseDotExeSuffixName.Length;
String.Buffer = &PathName->Buffer[(PathName->Length - String.Length) / sizeof(WCHAR)];
if (RtlEqualUnicodeString(&String, &BaseDotExeSuffixName, TRUE)) return 1;
return 0;
}
BOOL
WINAPI
BaseCheckVDM(IN ULONG BinaryType,
IN PCWCH ApplicationName,
IN PCWCH CommandLine,
IN PCWCH CurrentDirectory,
IN PANSI_STRING AnsiEnvironment,
IN PCSR_API_MESSAGE ApiMessage,
IN OUT PULONG iTask,
IN DWORD CreationFlags,
IN LPSTARTUPINFOW StartupInfo)
{
/* This is not supported */
UNIMPLEMENTED;
return FALSE;
}
BOOL
WINAPI
BaseUpdateVDMEntry(IN ULONG UpdateIndex,
IN OUT PHANDLE WaitHandle,
IN ULONG IndexInfo,
IN ULONG BinaryType)
{
#if 0 // Unimplemented in BASESRV
NTSTATUS Status;
BASE_API_MESSAGE ApiMessage;
PBASE_UPDATE_VDM_ENTRY UpdateVdmEntry = &ApiMessage.Data.UpdateVdmEntry;
/* Check what update is being sent */
switch (UpdateIndex)
{
/* VDM is being undone */
case VdmEntryUndo:
/* Tell the server how far we had gotten along */
UpdateVdmEntry->iTask = (ULONG)*WaitHandle;
UpdateVdmEntry->VDMCreationState = IndexInfo;
break;
/* VDM is ready with a new process handle */
case VdmEntryUpdateProcess:
/* Send it the process handle */
UpdateVdmEntry->VDMProcessHandle = *WaitHandle;
UpdateVdmEntry->iTask = IndexInfo;
break;
}
/* Also check what kind of binary this is for the console handle */
if (BinaryType == BINARY_TYPE_WOW)
{
/* Magic value for 16-bit apps */
UpdateVdmEntry->ConsoleHandle = (HANDLE)-1;
}
else if (UpdateVdmEntry->iTask)
{
/* No handle for true VDM */
UpdateVdmEntry->ConsoleHandle = 0;
}
else
{
/* Otherwise, send the regular consoel handle */
UpdateVdmEntry->ConsoleHandle = NtCurrentPeb()->ProcessParameters->ConsoleHandle;
}
/* Finally write the index and binary type */
UpdateVdmEntry->EntryIndex = UpdateIndex;
UpdateVdmEntry->BinaryType = BinaryType;
/* Send the message to CSRSS */
Status = CsrClientCallServer((PCSR_API_MESSAGE)&ApiMessage,
NULL,
CSR_CREATE_API_NUMBER(BASESRV_SERVERDLL_INDEX, BasepUpdateVDMEntry),
sizeof(BASE_UPDATE_VDM_ENTRY));
if (!(NT_SUCCESS(Status)) || !(NT_SUCCESS(ApiMessage.Status)))
{
/* Handle failure */
BaseSetLastNTError(ApiMessage.Status);
return FALSE;
}
/* If this was an update, CSRSS returns a new wait handle */
if (UpdateIndex == VdmEntryUpdateProcess)
{
/* Return it to the caller */
*WaitHandle = UpdateVdmEntry->WaitObjectForParent;
}
#endif
/* We made it */
return TRUE;
}
BOOL
WINAPI
BaseCheckForVDM(IN HANDLE ProcessHandle,
OUT LPDWORD ExitCode)
{
#if 0 // Unimplemented in BASESRV
NTSTATUS Status;
EVENT_BASIC_INFORMATION EventBasicInfo;
BASE_API_MESSAGE ApiMessage;
PBASE_GET_VDM_EXIT_CODE GetVdmExitCode = &ApiMessage.Data.GetVdmExitCode;
/* It's VDM if the process is actually a wait handle (an event) */
Status = NtQueryEvent(ProcessHandle,
EventBasicInformation,
&EventBasicInfo,
sizeof(EventBasicInfo),
NULL);
if (!NT_SUCCESS(Status)) return FALSE;
/* Setup the input parameters */
GetVdmExitCode->ConsoleHandle = NtCurrentPeb()->ProcessParameters->ConsoleHandle;
GetVdmExitCode->hParent = ProcessHandle;
/* Call CSRSS */
Status = CsrClientCallServer((PCSR_API_MESSAGE)&ApiMessage,
NULL,
CSR_CREATE_API_NUMBER(BASESRV_SERVERDLL_INDEX, BasepGetVDMExitCode /* BasepCheckVDM */),
sizeof(BASE_GET_VDM_EXIT_CODE));
if (!NT_SUCCESS(Status)) return FALSE;
/* Get the exit code from the reply */
*ExitCode = GetVdmExitCode->ExitCode;
#endif
return TRUE;
}
BOOL
WINAPI
BaseGetVdmConfigInfo(IN LPCWSTR Reserved,
IN ULONG DosSeqId,
IN ULONG BinaryType,
IN PUNICODE_STRING CmdLineString,
OUT PULONG VdmSize)
{
WCHAR Buffer[MAX_PATH];
WCHAR CommandLine[MAX_PATH * 2];
ULONG Length;
/* Clear the buffer in case we fail */
CmdLineString->Buffer = 0;
/* Always return the same size */
*VdmSize = 0x1000000;
/* Get the system directory */
Length = GetSystemDirectoryW(Buffer, MAX_PATH);
if (!(Length) || (Length >= MAX_PATH))
{
/* Eliminate no path or path too big */
SetLastError(ERROR_INVALID_NAME);
return FALSE;
}
/* Check if this is VDM with a DOS Sequence ID */
if (DosSeqId)
{
/* Build the VDM string for it */
_snwprintf(CommandLine,
sizeof(CommandLine),
L"\"%s\\ntvdm.exe\" -i%lx %s%c",
Buffer,
DosSeqId,
(BinaryType == 0x10) ? L" " : L"-w",
(BinaryType == 0x40) ? 's' : ' ');
}
else
{
/* Non-DOS, build the stirng for it without the task ID */
_snwprintf(CommandLine,
sizeof(CommandLine),
L"\"%s\\ntvdm.exe\" %s%c",
Buffer,
(BinaryType == 0x10) ? L" " : L"-w",
(BinaryType == 0x40) ? 's' : ' ');
}
/* Create the actual string */
return RtlCreateUnicodeString(CmdLineString, CommandLine);
}
UINT
WINAPI
BaseGetEnvNameType_U(IN PWCHAR Name,
IN ULONG NameLength)
{
PENV_INFO EnvInfo;
ULONG NameType, i;
/* Start by assuming unknown type */
NameType = 1;
/* Loop all the environment names */
for (i = 0; i < (sizeof(BasepEnvNameType) / sizeof(ENV_INFO)); i++)
{
/* Get this entry */
EnvInfo = &BasepEnvNameType[i];
/* Check if it matches the name */
if ((EnvInfo->NameLength == NameLength) &&
!(_wcsnicmp(EnvInfo->Name, Name, NameLength)))
{
/* It does, return the type */
NameType = EnvInfo->NameType;
break;
}
}
/* Return what we found, or unknown if nothing */
return NameType;
}
BOOL
NTAPI
BaseDestroyVDMEnvironment(IN PANSI_STRING AnsiEnv,
IN PUNICODE_STRING UnicodeEnv)
{
ULONG Dummy = 0;
/* Clear the ASCII buffer since Rtl creates this for us */
if (AnsiEnv->Buffer) RtlFreeAnsiString(AnsiEnv);
/* The Unicode buffer is build by hand, though */
if (UnicodeEnv->Buffer)
{
/* So clear it through the API */
NtFreeVirtualMemory(NtCurrentProcess(),
(PVOID*)&UnicodeEnv->Buffer,
&Dummy,
MEM_RELEASE);
}
/* All done */
return TRUE;
}
BOOL
NTAPI
BaseCreateVDMEnvironment(IN PWCHAR lpEnvironment,
IN PANSI_STRING AnsiEnv,
IN PUNICODE_STRING UnicodeEnv)
{
BOOL Result;
ULONG RegionSize, EnvironmentSize = 0;
PWCHAR p, Environment, NewEnvironment;
NTSTATUS Status;
/* Make sure we have both strings */
if (!(AnsiEnv) || !(UnicodeEnv))
{
/* Fail */
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
/* Check if an environment was passed in */
if (!lpEnvironment)
{
/* Nope, create one */
Status = RtlCreateEnvironment(TRUE, (PWCHAR*)&Environment);
if (!NT_SUCCESS(Status)) goto Quickie;
}
else
{
/* Use the one we got */
Environment = lpEnvironment;
}
/* Do we have something now ? */
if (!Environment)
{
/* Still not, fail out */
SetLastError(ERROR_BAD_ENVIRONMENT);
goto Quickie;
}
/* Count how much space the whole environment takes */
p = Environment;
while ((*p++ != UNICODE_NULL) && (*p != UNICODE_NULL)) EnvironmentSize++;
EnvironmentSize += sizeof(UNICODE_NULL);
/* Allocate a new copy */
RegionSize = (EnvironmentSize + MAX_PATH) * sizeof(WCHAR);
if (!NT_SUCCESS(NtAllocateVirtualMemory(NtCurrentProcess(),
(PVOID*)&NewEnvironment,
0,
&RegionSize,
MEM_COMMIT,
PAGE_READWRITE)))
{
/* We failed, bail out */
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
NewEnvironment = NULL;
goto Quickie;
}
/* Begin parsing the new environment */
p = NewEnvironment;
/* FIXME: Code here */
/* Terminate it */
*p++ = UNICODE_NULL;
/* Initialize the unicode string to hold it */
EnvironmentSize = (p - NewEnvironment) * sizeof(WCHAR);
RtlInitEmptyUnicodeString(UnicodeEnv, NewEnvironment, EnvironmentSize);
UnicodeEnv->Length = EnvironmentSize;
/* Create the ASCII version of it */
Status = RtlUnicodeStringToAnsiString(AnsiEnv, UnicodeEnv, TRUE);
if (!NT_SUCCESS(Status))
{
/* Set last error if conversion failure */
BaseSetLastNTError(Status);
}
else
{
/* Everything went okay, so return success */
Result = TRUE;
NewEnvironment = NULL;
}
Quickie:
/* Cleanup path starts here, start by destroying the envrionment copy */
if (!(lpEnvironment) && (Environment)) RtlDestroyEnvironment(Environment);
/* See if we are here due to failure */
if (NewEnvironment)
{
/* Initialize the paths to be empty */
RtlInitEmptyUnicodeString(UnicodeEnv, NULL, 0);
RtlInitEmptyAnsiString(AnsiEnv, NULL, 0);
/* Free the environment copy */
RegionSize = 0;
Status = NtFreeVirtualMemory(NtCurrentProcess(),
(PVOID*)&NewEnvironment,
&RegionSize,
MEM_RELEASE);
ASSERT(NT_SUCCESS(Status));
}
/* Return the result */
return Result;
}
/* Check whether a file is an OS/2 or a very old Windows executable
* by testing on import of KERNEL.
*
* FIXME: is reading the module imports the only way of discerning
* old Windows binaries from OS/2 ones ? At least it seems so...
*/
static DWORD WINAPI
InternalIsOS2OrOldWin(HANDLE hFile, IMAGE_DOS_HEADER *mz, IMAGE_OS2_HEADER *ne)
{
DWORD CurPos;
LPWORD modtab = NULL;
LPSTR nametab = NULL;
DWORD Read, Ret;
int i;
Ret = BINARY_OS216;
CurPos = SetFilePointer(hFile, 0, NULL, FILE_CURRENT);
/* read modref table */
if((SetFilePointer(hFile, mz->e_lfanew + ne->ne_modtab, NULL, FILE_BEGIN) == INVALID_SET_FILE_POINTER) ||
(!(modtab = HeapAlloc(GetProcessHeap(), 0, ne->ne_cmod * sizeof(WORD)))) ||
(!(ReadFile(hFile, modtab, ne->ne_cmod * sizeof(WORD), &Read, NULL))) ||
(Read != (DWORD)ne->ne_cmod * sizeof(WORD)))
{
goto broken;
}
/* read imported names table */
if((SetFilePointer(hFile, mz->e_lfanew + ne->ne_imptab, NULL, FILE_BEGIN) == INVALID_SET_FILE_POINTER) ||
(!(nametab = HeapAlloc(GetProcessHeap(), 0, ne->ne_enttab - ne->ne_imptab))) ||
(!(ReadFile(hFile, nametab, ne->ne_enttab - ne->ne_imptab, &Read, NULL))) ||
(Read != (DWORD)ne->ne_enttab - ne->ne_imptab))
{
goto broken;
}
for(i = 0; i < ne->ne_cmod; i++)
{
LPSTR module;
module = &nametab[modtab[i]];
if(!strncmp(&module[1], "KERNEL", module[0]))
{
/* very old windows file */
Ret = BINARY_WIN16;
goto done;
}
}
broken:
DPRINT1("InternalIsOS2OrOldWin(): Binary file seems to be broken\n");
done:
HeapFree(GetProcessHeap(), 0, modtab);
HeapFree(GetProcessHeap(), 0, nametab);
SetFilePointer(hFile, CurPos, NULL, FILE_BEGIN);
return Ret;
}
static DWORD WINAPI
InternalGetBinaryType(HANDLE hFile)
{
union
{
struct
{
unsigned char magic[4];
unsigned char ignored[12];
unsigned short type;
} elf;
struct
{
unsigned long magic;
unsigned long cputype;
unsigned long cpusubtype;
unsigned long filetype;
} macho;
IMAGE_DOS_HEADER mz;
} Header;
char magic[4];
DWORD Read;
if((SetFilePointer(hFile, 0, NULL, FILE_BEGIN) == INVALID_SET_FILE_POINTER) ||
(!ReadFile(hFile, &Header, sizeof(Header), &Read, NULL) ||
(Read != sizeof(Header))))
{
return BINARY_UNKNOWN;
}
if(!memcmp(Header.elf.magic, "\177ELF", sizeof(Header.elf.magic)))
{
/* FIXME: we don't bother to check byte order, architecture, etc. */
switch(Header.elf.type)
{
case 2:
return BINARY_UNIX_EXE;
case 3:
return BINARY_UNIX_LIB;
}
return BINARY_UNKNOWN;
}
/* Mach-o File with Endian set to Big Endian or Little Endian*/
if(Header.macho.magic == 0xFEEDFACE ||
Header.macho.magic == 0xCEFAEDFE)
{
switch(Header.macho.filetype)
{
case 0x8:
/* MH_BUNDLE */
return BINARY_UNIX_LIB;
}
return BINARY_UNKNOWN;
}
/* Not ELF, try DOS */
if(Header.mz.e_magic == IMAGE_DOS_SIGNATURE)
{
/* We do have a DOS image so we will now try to seek into
* the file by the amount indicated by the field
* "Offset to extended header" and read in the
* "magic" field information at that location.
* This will tell us if there is more header information
* to read or not.
*/
if((SetFilePointer(hFile, Header.mz.e_lfanew, NULL, FILE_BEGIN) == INVALID_SET_FILE_POINTER) ||
(!ReadFile(hFile, magic, sizeof(magic), &Read, NULL) ||
(Read != sizeof(magic))))
{
return BINARY_DOS;
}
/* Reading the magic field succeeded so
* we will try to determine what type it is.
*/
if(!memcmp(magic, "PE\0\0", sizeof(magic)))
{
IMAGE_FILE_HEADER FileHeader;
if(!ReadFile(hFile, &FileHeader, sizeof(IMAGE_FILE_HEADER), &Read, NULL) ||
(Read != sizeof(IMAGE_FILE_HEADER)))
{
return BINARY_DOS;
}
/* FIXME - detect 32/64 bit */
if(FileHeader.Characteristics & IMAGE_FILE_DLL)
return BINARY_PE_DLL32;
return BINARY_PE_EXE32;
}
if(!memcmp(magic, "NE", 1))
{
/* This is a Windows executable (NE) header. This can
* mean either a 16-bit OS/2 or a 16-bit Windows or even a
* DOS program (running under a DOS extender). To decide
* which, we'll have to read the NE header.
*/
IMAGE_OS2_HEADER ne;
if((SetFilePointer(hFile, Header.mz.e_lfanew, NULL, FILE_BEGIN) == 1) ||
!ReadFile(hFile, &ne, sizeof(IMAGE_OS2_HEADER), &Read, NULL) ||
(Read != sizeof(IMAGE_OS2_HEADER)))
{
/* Couldn't read header, so abort. */
return BINARY_DOS;
}
switch(ne.ne_exetyp)
{
case 2:
return BINARY_WIN16;
case 5:
return BINARY_DOS;
default:
return InternalIsOS2OrOldWin(hFile, &Header.mz, &ne);
}
}
return BINARY_DOS;
}
return BINARY_UNKNOWN;
}
/*
* @implemented
*/
BOOL
WINAPI
GetBinaryTypeW (
LPCWSTR lpApplicationName,
LPDWORD lpBinaryType
)
{
HANDLE hFile;
DWORD BinType;
if(!lpApplicationName || !lpBinaryType)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
hFile = CreateFileW(lpApplicationName, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, 0, 0);
if(hFile == INVALID_HANDLE_VALUE)
{
return FALSE;
}
BinType = InternalGetBinaryType(hFile);
CloseHandle(hFile);
switch(BinType)
{
case BINARY_UNKNOWN:
{
WCHAR *dot;
/*
* guess from filename
*/
if(!(dot = wcsrchr(lpApplicationName, L'.')))
{
return FALSE;
}
if(!lstrcmpiW(dot, L".COM"))
{
*lpBinaryType = SCS_DOS_BINARY;
return TRUE;
}
if(!lstrcmpiW(dot, L".PIF"))
{
*lpBinaryType = SCS_PIF_BINARY;
return TRUE;
}
return FALSE;
}
case BINARY_PE_EXE32:
case BINARY_PE_DLL32:
{
*lpBinaryType = SCS_32BIT_BINARY;
return TRUE;
}
case BINARY_PE_EXE64:
case BINARY_PE_DLL64:
{
*lpBinaryType = SCS_64BIT_BINARY;
return TRUE;
}
case BINARY_WIN16:
{
*lpBinaryType = SCS_WOW_BINARY;
return TRUE;
}
case BINARY_OS216:
{
*lpBinaryType = SCS_OS216_BINARY;
return TRUE;
}
case BINARY_DOS:
{
*lpBinaryType = SCS_DOS_BINARY;
return TRUE;
}
case BINARY_UNIX_EXE:
case BINARY_UNIX_LIB:
{
return FALSE;
}
}
DPRINT1("Invalid binary type returned!\n", BinType);
return FALSE;
}
/*
* @implemented
*/
BOOL
WINAPI
GetBinaryTypeA(IN LPCSTR lpApplicationName,
OUT LPDWORD lpBinaryType)
{
ANSI_STRING ApplicationNameString;
UNICODE_STRING ApplicationNameW;
BOOL StringAllocated = FALSE, Result;
NTSTATUS Status;
RtlInitAnsiString(&ApplicationNameString, lpApplicationName);
if (ApplicationNameString.Length * sizeof(WCHAR) >= NtCurrentTeb()->StaticUnicodeString.MaximumLength)
{
StringAllocated = TRUE;
Status = RtlAnsiStringToUnicodeString(&ApplicationNameW, &ApplicationNameString, TRUE);
}
else
{
Status = RtlAnsiStringToUnicodeString(&(NtCurrentTeb()->StaticUnicodeString), &ApplicationNameString, FALSE);
}
if (!NT_SUCCESS(Status))
{
BaseSetLastNTError(Status);
return FALSE;
}
if (StringAllocated)
{
Result = GetBinaryTypeW(ApplicationNameW.Buffer, lpBinaryType);
RtlFreeUnicodeString(&ApplicationNameW);
}
else
{
Result = GetBinaryTypeW(NtCurrentTeb()->StaticUnicodeString.Buffer, lpBinaryType);
}
return Result;
}
/*
* @unimplemented
*/
BOOL
WINAPI
CmdBatNotification (
DWORD Unknown
)
{
STUB;
return FALSE;
}
/*
* @unimplemented
*/
DWORD
WINAPI
ExitVDM (
DWORD Unknown0,
DWORD Unknown1
)
{
STUB;
return 0;
}
/*
* @unimplemented
*/
DWORD
WINAPI
GetNextVDMCommand (
DWORD Unknown0
)
{
STUB;
return 0;
}
/*
* @unimplemented
*/
DWORD
WINAPI
GetVDMCurrentDirectories (
DWORD Unknown0,
DWORD Unknown1
)
{
STUB;
return 0;
}
/*
* @unimplemented
*/
BOOL
WINAPI
RegisterConsoleVDM (
DWORD Unknown0,
DWORD Unknown1,
DWORD Unknown2,
DWORD Unknown3,
DWORD Unknown4,
DWORD Unknown5,
DWORD Unknown6,
DWORD Unknown7,
DWORD Unknown8,
DWORD Unknown9,
DWORD Unknown10
)
{
STUB;
return FALSE;
}
/*
* @unimplemented
*/
BOOL
WINAPI
RegisterWowBaseHandlers (
DWORD Unknown0
)
{
STUB;
return FALSE;
}
/*
* @unimplemented
*/
BOOL
WINAPI
RegisterWowExec (
DWORD Unknown0
)
{
STUB;
return FALSE;
}
/*
* @unimplemented
*/
BOOL
WINAPI
SetVDMCurrentDirectories (
DWORD Unknown0,
DWORD Unknown1
)
{
STUB;
return FALSE;
}
/*
* @unimplemented
*/
DWORD
WINAPI
VDMConsoleOperation (
DWORD Unknown0,
DWORD Unknown1
)
{
STUB;
return 0;
}
/*
* @unimplemented
*/
DWORD
WINAPI
VDMOperationStarted (
DWORD Unknown0
)
{
STUB;
return 0;
}
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