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windows-server-2003/base/win32/winnls/tables.c

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/*++
Copyright (c) 1991-2000, Microsoft Corporation All rights reserved.
Module Name:
tables.c
Abstract:
This file contains functions that manipulate or return information
about the different tables used by the NLS API.
External Routines found in this file:
AllocTables
GetUnicodeFileInfo
GetGeoFileInfo
GetCTypeFileInfo
GetDefaultSortkeyFileInfo
GetDefaultSortTablesFileInfo
GetSortkeyFileInfo
GetSortTablesFileInfo
GetCodePageFileInfo
GetLanguageFileInfo
GetLocaleFileInfo
MakeCPHashNode
MakeLangHashNode
MakeLocHashNode
GetCPHashNode
GetLangHashNode
GetLocHashNode
GetCalendar
Revision History:
05-31-91 JulieB Created.
--*/
//
// Include Files.
//
#include "nls.h"
#include "nlssafe.h"
//
// Constant Declarations.
//
#define SEM_NOERROR (SEM_FAILCRITICALERRORS | \
SEM_NOGPFAULTERRORBOX | \
SEM_NOOPENFILEERRORBOX)
//
// Global Variables.
//
PTBL_PTRS pTblPtrs; // ptr to structure of table ptrs
//
// Forward Declarations.
//
BOOL
IsValidSortId(
LCID Locale);
ULONG
GetLanguageExceptionInfo(void);
LPWORD
GetLinguisticLanguageInfo(
LCID Locale);
ULONG
CreateAndCopyLanguageExceptions(
LCID Locale,
LPWORD *ppBaseAddr);
BOOL FASTCALL
FindLanguageExceptionPointers(
LCID Locale,
PL_EXCEPT_HDR *ppExceptHdr,
PL_EXCEPT *ppExceptTbl);
void FASTCALL
CopyLanguageExceptionInfo(
LPWORD pBaseAddr,
PL_EXCEPT_HDR pExceptHdr,
PL_EXCEPT pExceptTbl);
BOOL FASTCALL
FindExceptionPointers(
LCID Locale,
PEXCEPT_HDR *ppExceptHdr,
PEXCEPT *ppExceptTbl,
PVOID *ppIdeograph,
PULONG pReturn);
void FASTCALL
CopyExceptionInfo(
PSORTKEY pSortkey,
PEXCEPT_HDR pExceptHdr,
PEXCEPT pExceptTbl,
PVOID pIdeograph);
ULONG
WaitOnEvent(
LPWORD pSem);
//-------------------------------------------------------------------------//
// INTERNAL MACROS //
//-------------------------------------------------------------------------//
////////////////////////////////////////////////////////////////////////////
//
// GET_HASH_VALUE
//
// Returns the hash value for given value and the given table size.
//
// DEFINED AS A MACRO.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
#define GET_HASH_VALUE(Value, TblSize) (Value % TblSize)
////////////////////////////////////////////////////////////////////////////
//
// CREATE_CODEPAGE_HASH_NODE
//
// Creates a code page hash node and stores the pointer to it in pHashN.
//
// NOTE: This macro may return if an error is encountered.
//
// DEFINED AS A MACRO.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
#define CREATE_CODEPAGE_HASH_NODE( CodePage, \
pHashN ) \
{ \
/* \
* Allocate CP_HASH structure. \
*/ \
if ((pHashN = (PCP_HASH)NLS_ALLOC_MEM(sizeof(CP_HASH))) == NULL) \
{ \
return (ERROR_OUTOFMEMORY); \
} \
\
/* \
* Fill in the CodePage value. \
*/ \
pHashN->CodePage = CodePage; \
\
/* \
* Make sure the pfnCPProc value is NULL for now. \
*/ \
pHashN->pfnCPProc = NULL; \
}
////////////////////////////////////////////////////////////////////////////
//
// CREATE_LOCALE_HASH_NODE
//
// Creates a locale hash node and stores the pointer to it in pHashN.
//
// NOTE: This macro may return if an error is encountered.
//
// DEFINED AS A MACRO.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
#define CREATE_LOCALE_HASH_NODE( Locale, \
pHashN ) \
{ \
/* \
* Allocate LOC_HASH structure. \
*/ \
if ((pHashN = (PLOC_HASH)NLS_ALLOC_MEM(sizeof(LOC_HASH))) == NULL) \
{ \
return (ERROR_OUTOFMEMORY); \
} \
\
/* \
* Fill in the Locale value. \
*/ \
pHashN->Locale = Locale; \
}
////////////////////////////////////////////////////////////////////////////
//
// FIND_CP_HASH_NODE
//
// Searches for the cp hash node for the given locale. The result is
// put in pHashN. If no node exists, pHashN will be NULL.
//
// DEFINED AS A MACRO.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
#define FIND_CP_HASH_NODE( CodePage, \
pHashN ) \
{ \
UINT Index; /* hash value */ \
\
/* \
* Get hash value. \
*/ \
Index = GET_HASH_VALUE(CodePage, CP_TBL_SIZE); \
\
/* \
* Make sure the hash node still doesn't exist in the table. \
*/ \
pHashN = (pTblPtrs->pCPHashTbl)[Index]; \
while ((pHashN != NULL) && (pHashN->CodePage != CodePage)) \
{ \
pHashN = pHashN->pNext; \
} \
}
////////////////////////////////////////////////////////////////////////////
//
// IsCPHashNodeLoaded
//
// Wrapper for the FIND_CP_HASH_NODE macro so that we can call this from
// mbcs.c. Return TRUE if the node already exists, otherwise false. False
// could still indicate a valid code page, just not one already loaded.
//
// 05-31-02 ShawnSte Created.
////////////////////////////////////////////////////////////////////////////
BOOL IsCPHashNodeLoaded( UINT CodePage )
{
PCP_HASH pHashN; // ptr to CP hash node
//
// Get hash node.
//
FIND_CP_HASH_NODE(CodePage, pHashN);
return (pHashN != NULL);
}
////////////////////////////////////////////////////////////////////////////
//
// FIND_LOCALE_HASH_NODE
//
// Searches for the locale hash node for the given locale. The result is
// put in pHashN. If no node exists, pHashN will be NULL.
//
// DEFINED AS A MACRO.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
#define FIND_LOCALE_HASH_NODE( Locale, \
pHashN ) \
{ \
UINT Index; /* hash value */ \
\
\
/* \
* Get hash value. \
*/ \
Index = GET_HASH_VALUE(Locale, LOC_TBL_SIZE); \
\
/* \
* Get hash node. \
*/ \
pHashN = (pTblPtrs->pLocHashTbl)[Index]; \
while ((pHashN != NULL) && (pHashN->Locale != Locale)) \
{ \
pHashN = pHashN->pNext; \
} \
}
////////////////////////////////////////////////////////////////////////////
//
// EXIST_LANGUAGE_INFO
//
// Checks to see if the casing tables have been added to the locale
// hash node.
//
// Must check the LOWER CASE pointer, since that value is set last in
// the hash node.
//
// DEFINED AS A MACRO.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
#define EXIST_LANGUAGE_INFO(pHashN) (pHashN->pLowerCase)
////////////////////////////////////////////////////////////////////////////
//
// EXIST_LINGUIST_LANGUAGE_INFO
//
// Checks to see if the linguistic casing tables have been added to the locale
// hash node.
//
// Must check the LOWER CASE pointer, since that value is set last in
// the hash node.
//
// DEFINED AS A MACRO.
//
// 08-30-95 JulieB Created.
////////////////////////////////////////////////////////////////////////////
#define EXIST_LINGUIST_LANGUAGE_INFO(pHashN) (pHashN->pLowerLinguist)
////////////////////////////////////////////////////////////////////////////
//
// EXIST_LOCALE_INFO
//
// Checks to see if the locale tables have been added to the locale
// hash node.
//
// Must check the FIXED locale pointer, since that value is set last in
// the hash node.
//
// DEFINED AS A MACRO.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
#define EXIST_LOCALE_INFO(pHashN) (pHashN->pLocaleFixed)
////////////////////////////////////////////////////////////////////////////
//
// INSERT_CP_HASH_NODE
//
// Inserts a CP hash node into the global CP hash table. It assumes that
// all unused hash values in the table are pointing to NULL. If there is
// a collision, the new node will be added FIRST in the list.
//
// DEFINED AS A MACRO.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
#define INSERT_CP_HASH_NODE( pHashN, \
pBaseAddr ) \
{ \
UINT Index; /* hash value */ \
PCP_HASH pSearch; /* ptr to CP hash node for search */ \
\
\
/* \
* Get hash value. \
*/ \
Index = GET_HASH_VALUE(pHashN->CodePage, CP_TBL_SIZE); \
\
/* \
* Enter table pointers critical section. \
*/ \
RtlEnterCriticalSection(&gcsTblPtrs); \
\
/* \
* Make sure the hash node still doesn't exist in the table. \
*/ \
pSearch = (pTblPtrs->pCPHashTbl)[Index]; \
while ((pSearch != NULL) && (pSearch->CodePage != pHashN->CodePage)) \
{ \
pSearch = pSearch->pNext; \
} \
\
/* \
* If the hash node does not exist, insert the new one. \
* Otherwise, free it. \
*/ \
if (pSearch == NULL) \
{ \
/* \
* Insert hash node into hash table. \
*/ \
pHashN->pNext = (pTblPtrs->pCPHashTbl)[Index]; \
(pTblPtrs->pCPHashTbl)[Index] = pHashN; \
} \
else \
{ \
/* \
* Free the resources allocated. \
*/ \
if (pBaseAddr) \
{ \
UnMapSection(pBaseAddr); \
} \
NLS_FREE_MEM(pHashN); \
} \
\
/* \
* Leave table pointers critical section. \
*/ \
RtlLeaveCriticalSection(&gcsTblPtrs); \
}
////////////////////////////////////////////////////////////////////////////
//
// INSERT_LOC_HASH_NODE
//
// Inserts a LOC hash node into the global LOC hash table. It assumes
// that all unused hash values in the table are pointing to NULL. If
// there is a collision, the new node will be added FIRST in the list.
//
// DEFINED AS A MACRO.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
#define INSERT_LOC_HASH_NODE( pHashN, \
pBaseAddr ) \
{ \
UINT Index; /* hash value */ \
PLOC_HASH pSearch; /* ptr to LOC hash node for search */ \
\
\
/* \
* Get hash value. \
*/ \
Index = GET_HASH_VALUE(pHashN->Locale, LOC_TBL_SIZE); \
\
/* \
* Enter table pointers critical section. \
*/ \
RtlEnterCriticalSection(&gcsTblPtrs); \
\
/* \
* Make sure the hash node still doesn't exist in the table. \
*/ \
pSearch = (pTblPtrs->pLocHashTbl)[Index]; \
while ((pSearch != NULL) && (pSearch->Locale != pHashN->Locale)) \
{ \
pSearch = pSearch->pNext; \
} \
\
/* \
* If the hash node does not exist, insert the new one. \
* Otherwise, free it. \
*/ \
if (pSearch == NULL) \
{ \
/* \
* Insert hash node into hash table. \
*/ \
pHashN->pNext = (pTblPtrs->pLocHashTbl)[Index]; \
(pTblPtrs->pLocHashTbl)[Index] = pHashN; \
} \
else \
{ \
/* \
* Free the resources allocated. \
*/ \
if (pBaseAddr) \
{ \
UnMapSection(pBaseAddr); \
} \
if ((pHashN->pSortkey != pTblPtrs->pDefaultSortkey) && \
(pHashN->pSortkey != NULL)) \
{ \
UnMapSection(((LPWORD)(pHashN->pSortkey)) - SORTKEY_HEADER); \
} \
NLS_FREE_MEM(pHashN); \
} \
\
/* \
* Leave table pointers critical section. \
*/ \
RtlLeaveCriticalSection(&gcsTblPtrs); \
}
////////////////////////////////////////////////////////////////////////////
//
// GET_CP_SECTION_NAME
//
// Gets the section name for a given code page.
//
// NOTE: This macro may return if an error is encountered.
//
// DEFINED AS A MACRO.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
#define GET_CP_SECTION_NAME( CodePage, \
pwszSecName, \
cchSecName, \
pObSecName ) \
{ \
if (rc = GetNlsSectionName( CodePage, \
10, \
0, \
NLS_SECTION_CPPREFIX, \
pwszSecName, \
cchSecName)) \
{ \
return (rc); \
} \
RtlInitUnicodeString(pObSecName, pwszSecName); \
}
////////////////////////////////////////////////////////////////////////////
//
// GET_SORTKEY_SECTION_NAME
//
// Gets the sortkey section name for a given locale.
//
// NOTE: This macro may return if an error is encountered.
//
// DEFINED AS A MACRO.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
#define GET_SORTKEY_SECTION_NAME( Locale, \
pwszSecName, \
cchSecName, \
pObSecName ) \
{ \
if (rc = GetNlsSectionName( Locale, \
16, \
8, \
NLS_SECTION_SORTKEY, \
pwszSecName, \
cchSecName)) \
{ \
return (rc); \
} \
RtlInitUnicodeString(pObSecName, pwszSecName); \
}
////////////////////////////////////////////////////////////////////////////
//
// GET_LANG_SECTION_NAME
//
// Gets the section name for a given language.
//
// NOTE: This macro may return if an error is encountered.
//
// DEFINED AS A MACRO.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
#define GET_LANG_SECTION_NAME( Locale, \
pwszSecName, \
cchSecName, \
pObSecName ) \
{ \
if (rc = GetNlsSectionName( Locale, \
16, \
8, \
NLS_SECTION_LANGPREFIX, \
pwszSecName, \
cchSecName)) \
{ \
return (rc); \
} \
RtlInitUnicodeString(pObSecName, pwszSecName); \
}
//-------------------------------------------------------------------------//
// EXTERNAL ROUTINES //
//-------------------------------------------------------------------------//
////////////////////////////////////////////////////////////////////////////
//
// AllocTables
//
// Allocates the global table pointers structure. It then allocates the
// code page and locale hash tables and saves the pointers to the tables
// in the global table pointers structure.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG AllocTables()
{
//
// Allocate global table pointers structure.
//
if ((pTblPtrs = (PTBL_PTRS)NLS_ALLOC_MEM(sizeof(TBL_PTRS))) == NULL)
{
KdPrint(("NLSAPI: Allocation for TABLE PTRS structure FAILED.\n"));
return (ERROR_OUTOFMEMORY);
}
//
// Allocate code page hash table.
//
if ((pTblPtrs->pCPHashTbl =
(PCP_HASH_TBL)NLS_ALLOC_MEM(sizeof(PCP_HASH) * CP_TBL_SIZE)) == NULL)
{
KdPrint(("NLSAPI: Allocation for CODE PAGE hash table FAILED.\n"));
return (ERROR_OUTOFMEMORY);
}
//
// Allocate locale hash table.
//
if ((pTblPtrs->pLocHashTbl =
(PLOC_HASH_TBL)NLS_ALLOC_MEM(sizeof(PLOC_HASH) * LOC_TBL_SIZE)) == NULL)
{
KdPrint(("NLSAPI: Allocation for LOCALE hash table FAILED.\n"));
return (ERROR_OUTOFMEMORY);
}
//
// Return success.
//
return (NO_ERROR);
}
////////////////////////////////////////////////////////////////////////////
//
// GetUnicodeFileInfo
//
// Opens and Maps a view of the section for the unicode file. It then
// fills in the appropriate fields of the global table pointers structure.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG GetUnicodeFileInfo()
{
HANDLE hSec = (HANDLE)0; // section handle
UNICODE_STRING ObSecName; // section name
LPWORD pBaseAddr; // ptr to base address of section
ULONG rc = 0L; // return code
WORD offCZ; // offset to FOLDCZONE table
WORD offHG; // offset to HIRAGANA table
WORD offKK; // offset to KATAKANA table
WORD offHW; // offset to HALFWIDTH table
WORD offFW; // offset to FULLWIDTH table
WORD offTR; // offset to TRADITIONAL table
WORD offSP; // offset to SIMPLIFIED table
WORD offPre; // offset to PRECOMPOSED table
WORD offComp; // offset to COMPOSITE table
PCOMP_INFO pComp; // ptr to COMP_INFO structure
//
// Make sure we're in the critical section when entering this call.
//
ASSERT(NtCurrentTeb()->ClientId.UniqueThread == gcsTblPtrs.OwningThread);
//
// Make sure the unicode information is not already there.
// If it is, return success.
//
// Since we're already in the critical section here, there is no
// need to check ALL of the pointers set in this routine. Just
// check one of them.
//
if (pTblPtrs->pADigit != NULL)
{
return (NO_ERROR);
}
//
// Open and Map a view of the section.
//
ObSecName.Buffer = NLS_SECTION_UNICODE;
ObSecName.Length = sizeof (NLS_SECTION_UNICODE) - sizeof (WCHAR);
ObSecName.MaximumLength = ObSecName.Length;
if (rc = OpenSection( &hSec,
&ObSecName,
(PVOID *)&pBaseAddr,
SECTION_MAP_READ,
TRUE ))
{
return (rc);
}
//
// Get the offsets.
//
offCZ = pBaseAddr[0];
offHG = offCZ + pBaseAddr[offCZ];
offKK = offHG + pBaseAddr[offHG];
offHW = offKK + pBaseAddr[offKK];
offFW = offHW + pBaseAddr[offHW];
offTR = offFW + pBaseAddr[offFW];
offSP = offTR + pBaseAddr[offTR];
offPre = offSP + pBaseAddr[offSP];
offComp = offPre + pBaseAddr[offPre];
//
// Allocate COMP_INFO structure.
//
if ((pComp = (PCOMP_INFO)NLS_ALLOC_MEM(sizeof(COMP_INFO))) == NULL)
{
return (ERROR_OUTOFMEMORY);
}
//
// Fill in the COMPOSITE information.
//
pComp->NumBase = LOBYTE((pBaseAddr + offComp)[2]);
pComp->NumNonSp = HIBYTE((pBaseAddr + offComp)[2]);
pComp->pBase = pBaseAddr + offComp + CO_HEADER;
pComp->pNonSp = pComp->pBase + ((pBaseAddr + offComp)[0]);
pComp->pGrid = pComp->pNonSp + ((pBaseAddr + offComp)[1]);
//
// Attach ASCIIDIGITS table to tbl ptrs structure.
//
pTblPtrs->pADigit = pBaseAddr + AD_HEADER;
//
// Attach FOLDCZONE table to tbl ptrs structure.
//
pTblPtrs->pCZone = pBaseAddr + offCZ + CZ_HEADER;
//
// Attach HIRAGANA table to tbl ptrs structure.
//
pTblPtrs->pHiragana = pBaseAddr + offHG + HG_HEADER;
//
// Attach KATAKANA table to tbl ptrs structure.
//
pTblPtrs->pKatakana = pBaseAddr + offKK + KK_HEADER;
//
// Attach HALFWIDTH table to tbl ptrs structure.
//
pTblPtrs->pHalfWidth = pBaseAddr + offHW + HW_HEADER;
//
// Attach FULLWIDTH table to tbl ptrs structure.
//
pTblPtrs->pFullWidth = pBaseAddr + offFW + FW_HEADER;
//
// Attach TRADITIONAL table to tbl ptrs structure.
//
pTblPtrs->pTraditional = pBaseAddr + offTR + TR_HEADER;
//
// Attach SIMPLIFIED table to tbl ptrs structure.
//
pTblPtrs->pSimplified = pBaseAddr + offSP + SP_HEADER;
//
// Attach PRECOMPOSED table to tbl ptrs structure.
//
pTblPtrs->pPreComposed = pBaseAddr + offPre + PC_HEADER;
//
// Attach COMP_INFO to tbl ptrs structure.
//
pTblPtrs->pComposite = pComp;
//
// Return success.
//
return (NO_ERROR);
}
////////////////////////////////////////////////////////////////////////////
//
// GetGeoFileInfo
//
// Opens and Maps a view of the section for the geo file. It then
// fills in the appropriate field of the global table pointers structure.
// Before calling this function you should check pGeoInfo member.
//
////////////////////////////////////////////////////////////////////////////
ULONG GetGeoFileInfo()
{
HANDLE hSec = (HANDLE)0; // section handle
UNICODE_STRING ObSecName; // section name
LPWORD pBaseAddr; // ptr to base address of section
ULONG rc = NO_ERROR; // return code
//
// Enter the critical section to set up the GEO tables.
//
RtlEnterCriticalSection(&gcsTblPtrs);
//
// Make sure the Geographical Information table is
// not already there. If it is, return TRUE.
//
// Since we're already in the critical section here, there is no
// need to check ALL of the pointers set in this routine. Just
// check one of them.
//
if (pTblPtrs->pGeoInfo != NULL)
{
RtlLeaveCriticalSection(&gcsTblPtrs);
return (NO_ERROR);
}
//
// Create and map the section, and then save the pointer.
//
if ((rc = CsrBasepNlsCreateSection(NLS_CREATE_SECTION_GEO, 0, &hSec)) == NO_ERROR)
{
//
// Map a View of the Section.
//
if ((rc = MapSection( hSec,
&pBaseAddr,
PAGE_READONLY,
TRUE )) != NO_ERROR)
{
RtlLeaveCriticalSection(&gcsTblPtrs);
return (rc);
}
}
else
{
RtlLeaveCriticalSection(&gcsTblPtrs);
return (rc);
}
//
// Attach GeoInfo mapping table, GEO/LCID mapping table and
// GEO/ISO639 name mapping table to the tbl ptrs structure. We initialize
// the pGeoinfo member at the end so we don't get a race condition.
//
pTblPtrs->nGeoLCID = ((PGEOTABLEHDR)pBaseAddr)->nGeoLCID;
pTblPtrs->pGeoLCID = (PGEOLCID)((PBYTE)pBaseAddr + ((PGEOTABLEHDR)pBaseAddr)->dwOffsetGeoLCID);
pTblPtrs->nGeoInfo = ((PGEOTABLEHDR)pBaseAddr)->nGeoInfo;
pTblPtrs->pGeoInfo = (PGEOINFO)((PBYTE)pBaseAddr + ((PGEOTABLEHDR)pBaseAddr)->dwOffsetGeoInfo);
//
// Leave table pointers critical section.
//
RtlLeaveCriticalSection(&gcsTblPtrs);
//
// Return success.
//
return (NO_ERROR);
}
////////////////////////////////////////////////////////////////////////////
//
// GetCTypeFileInfo
//
// Opens and Maps a view of the section for the given ctype. It then
// fills in the appropriate field of the global table pointers structure.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG GetCTypeFileInfo()
{
HANDLE hSec = (HANDLE)0; // section handle
UNICODE_STRING ObSecName; // section name
LPWORD pBaseAddr; // ptr to base address of section
ULONG rc = 0L; // return code
//
// Make sure the ctype information is not already there.
// If it is, return success.
//
// Must check the 844 table rather than the mapping table, since
// the 844 table is set AFTER the mapping table below. Otherwise,
// there is a race condition, since we're not in a critical section.
//
if (pTblPtrs->pCType844 != NULL)
{
return (NO_ERROR);
}
//
// Enter table pointers critical section.
//
RtlEnterCriticalSection(&gcsTblPtrs);
if (pTblPtrs->pCType844 != NULL)
{
RtlLeaveCriticalSection(&gcsTblPtrs);
return (NO_ERROR);
}
//
// Open and Map a view of the section.
//
RtlInitUnicodeString(&ObSecName, NLS_SECTION_CTYPE);
if (rc = OpenSection( &hSec,
&ObSecName,
(PVOID *)&pBaseAddr,
SECTION_MAP_READ,
TRUE ))
{
RtlLeaveCriticalSection(&gcsTblPtrs);
return (rc);
}
//
// Attach CTYPE mapping table and 8:4:4 table to tbl ptrs structure.
//
// The pCType844 value must be set LAST, since this is the pointer
// that is checked to see that the ctype information has been
// initialized.
//
pTblPtrs->pCTypeMap = (PCT_VALUES)(pBaseAddr + CT_HEADER);
pTblPtrs->pCType844 = (PCTYPE)((LPBYTE)(pBaseAddr + 1) +
((PCTYPE_HDR)pBaseAddr)->MapSize);
//
// Leave table pointers critical section.
//
RtlLeaveCriticalSection(&gcsTblPtrs);
//
// Return success.
//
return (NO_ERROR);
}
////////////////////////////////////////////////////////////////////////////
//
// GetDefaultSortkeyFileInfo
//
// Opens and Maps a view of the section for the default sortkey table. It
// then stores the pointer to the table in the global pointer table.
//
// NOTE: THIS ROUTINE SHOULD ONLY BE CALLED AT PROCESS STARTUP. If it is
// called from other than process startup, a critical section must
// be placed around the assigning of the pointers to pTblPtrs.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG GetDefaultSortkeyFileInfo()
{
HANDLE hSec = (HANDLE)0; // section handle
UNICODE_STRING ObSecName; // section name
LPWORD pBaseAddr; // ptr to base address of section
ULONG rc = 0L; // return code
SECTION_BASIC_INFORMATION SecInfo; // section information - query
//
// Make sure we're in the critical section when entering this call.
//
ASSERT(NtCurrentTeb()->ClientId.UniqueThread == gcsTblPtrs.OwningThread);
//
// Open and Map a view of the section if it hasn't been done yet.
//
if (pTblPtrs->pDefaultSortkey != NULL)
{
return (NO_ERROR);
}
ObSecName.Buffer = NLS_SECTION_SORTKEY;
ObSecName.Length = sizeof (NLS_SECTION_SORTKEY) - sizeof (WCHAR);
ObSecName.MaximumLength = ObSecName.Length;
if (rc = OpenSection( &hSec,
&ObSecName,
(PVOID *)&pBaseAddr,
SECTION_MAP_READ | SECTION_QUERY,
FALSE ))
{
KdPrint(("NLSAPI: Could NOT Open Section %wZ - %lx.\n", &ObSecName, rc));
return (rc);
}
//
// Query size of default section.
//
rc = NtQuerySection( hSec,
SectionBasicInformation,
&SecInfo,
sizeof(SecInfo),
NULL );
//
// Close the section handle.
//
NtClose(hSec);
//
// Check for error from NtQuerySection.
//
if (!NT_SUCCESS(rc))
{
KdPrint(("NLSAPI: Could NOT Query Section %wZ - %lx.\n", &ObSecName, rc));
return (rc);
}
//
// Get Default Sortkey Information.
//
pTblPtrs->pDefaultSortkey = (PSORTKEY)(pBaseAddr + SORTKEY_HEADER);
pTblPtrs->DefaultSortkeySize = SecInfo.MaximumSize;
//
// Return success.
//
return (NO_ERROR);
}
////////////////////////////////////////////////////////////////////////////
//
// GetDefaultSortTablesFileInfo
//
// Opens and Maps a view of the section for the sort tables. It then
// stores the pointers to the various tables in the global pointer table.
//
// NOTE: THIS ROUTINE SHOULD ONLY BE CALLED AT PROCESS STARTUP. If it is
// called from other than process startup, a critical section must
// be placed around the assigning of the pointers to pTblPtrs.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG GetDefaultSortTablesFileInfo()
{
HANDLE hSec = (HANDLE)0; // section handle
UNICODE_STRING ObSecName; // section name
LPWORD pBaseAddr; // word ptr to base address of section
DWORD Num; // number of entries in table
PCOMPRESS_HDR pCompressHdr; // ptr to compression header
PEXCEPT_HDR pExceptHdr; // ptr to exception header
ULONG rc = 0L; // return code
//
// Make sure we're in the critical section when entering this call.
//
ASSERT(NtCurrentTeb()->ClientId.UniqueThread == gcsTblPtrs.OwningThread);
//
// Open and Map a view of the section if it hasn't been done yet.
//
// Since we're already in the critical section here, there is no
// need to check ALL of the pointers set in this routine. Just
// check one of them.
//
if (pTblPtrs->pReverseDW != NULL)
{
return (NO_ERROR);
}
ObSecName.Buffer = NLS_SECTION_SORTTBLS;
ObSecName.Length = sizeof (NLS_SECTION_SORTTBLS) - sizeof (WCHAR);
ObSecName.MaximumLength = ObSecName.Length;
if (rc = OpenSection( &hSec,
&ObSecName,
(PVOID *)&pBaseAddr,
SECTION_MAP_READ,
TRUE ))
{
return (rc);
}
pTblPtrs->pSortingTableFileBase = pBaseAddr;
//
// Get Defined Code Point version Information.
//
pTblPtrs->NumDefinedVersion = Num = *((LPDWORD)pBaseAddr);
pBaseAddr += NLSDEFINED_HEADER;
if (Num > 0)
{
pTblPtrs->pDefinedVersion = (PDEFVERINFO)pBaseAddr;
pBaseAddr += Num * sizeof(DEFVERINFO)/sizeof(WORD);
}
else
{
KdPrint(("NLSAPI: Appropriate Defined Code Point Table Not Loaded.\n"));
pTblPtrs->pDefinedVersion = NULL;
}
//
// Get Sorting Version Information.
//
if ((pTblPtrs->NumSortVersion = *((LPDWORD)pBaseAddr)) > 0)
{
pTblPtrs->pSortVersion = (PSORTVERINFO)(pBaseAddr + SORTVERINFO_HEADER);
} else
{
pTblPtrs->pSortVersion = NULL;
}
pBaseAddr += SORTVERINFO_HEADER + (pTblPtrs->NumSortVersion * (sizeof(SORTVERINFO) / sizeof(WORD)));
//
// Get Reverse Diacritic Information.
//
Num = *((LPDWORD)pBaseAddr);
if (Num > 0)
{
pTblPtrs->NumReverseDW = Num;
pTblPtrs->pReverseDW = (PREVERSE_DW)(pBaseAddr + REV_DW_HEADER);
}
pBaseAddr += REV_DW_HEADER + (Num * (sizeof(REVERSE_DW) / sizeof(WORD)));
//
// Get Double Compression Information.
//
Num = *((LPDWORD)pBaseAddr);
if (Num > 0)
{
pTblPtrs->NumDblCompression = Num;
pTblPtrs->pDblCompression = (PDBL_COMPRESS)(pBaseAddr + DBL_COMP_HEADER);
}
pBaseAddr += DBL_COMP_HEADER + (Num * (sizeof(DBL_COMPRESS) / sizeof(WORD)));
//
// Get Ideograph Lcid Exception Information.
//
Num = *((LPDWORD)pBaseAddr);
if (Num > 0)
{
pTblPtrs->NumIdeographLcid = Num;
pTblPtrs->pIdeographLcid = (PIDEOGRAPH_LCID)(pBaseAddr + IDEO_LCID_HEADER);
}
pBaseAddr += IDEO_LCID_HEADER + (Num * (sizeof(IDEOGRAPH_LCID) / sizeof(WORD)));
//
// Get Expansion Information.
//
Num = *((LPDWORD)pBaseAddr);
if (Num > 0)
{
pTblPtrs->NumExpansion = Num;
pTblPtrs->pExpansion = (PEXPAND)(pBaseAddr + EXPAND_HEADER);
}
pBaseAddr += EXPAND_HEADER + (Num * (sizeof(EXPAND) / sizeof(WORD)));
//
// Get Compression Information.
//
Num = *((LPDWORD)pBaseAddr);
if (Num > 0)
{
pTblPtrs->NumCompression = Num;
pTblPtrs->pCompressHdr = (PCOMPRESS_HDR)(pBaseAddr + COMPRESS_HDR_OFFSET);
pTblPtrs->pCompression = (PCOMPRESS)(pBaseAddr + COMPRESS_HDR_OFFSET +
(Num * (sizeof(COMPRESS_HDR) /
sizeof(WORD))));
}
pCompressHdr = pTblPtrs->pCompressHdr;
pBaseAddr = (LPWORD)(pTblPtrs->pCompression) +
(pCompressHdr[Num - 1]).Offset;
pBaseAddr += (((pCompressHdr[Num - 1]).Num2) *
(sizeof(COMPRESS_2) / sizeof(WORD)));
pBaseAddr += (((pCompressHdr[Num - 1]).Num3) *
(sizeof(COMPRESS_3) / sizeof(WORD)));
//
// Get Exception Information.
//
Num = *((LPDWORD)pBaseAddr);
if (Num > 0)
{
pTblPtrs->NumException = Num;
pTblPtrs->pExceptHdr = (PEXCEPT_HDR)(pBaseAddr + EXCEPT_HDR_OFFSET);
pTblPtrs->pException = (PEXCEPT)(pBaseAddr + EXCEPT_HDR_OFFSET +
(Num * (sizeof(EXCEPT_HDR) /
sizeof(WORD))));
}
pExceptHdr = pTblPtrs->pExceptHdr;
pBaseAddr = (LPWORD)(pTblPtrs->pException) +
(pExceptHdr[Num - 1]).Offset;
pBaseAddr += (((pExceptHdr[Num - 1]).NumEntries) *
(sizeof(EXCEPT) / sizeof(WORD)));
//
// Get Multiple Weights Information.
//
Num = (DWORD)(*pBaseAddr);
if (Num > 0)
{
pTblPtrs->NumMultiWeight = Num;
pTblPtrs->pMultiWeight = (PMULTI_WT)(pBaseAddr + MULTI_WT_HEADER);
}
pBaseAddr += MULTI_WT_HEADER + (Num * (sizeof(MULTI_WT) / sizeof(WORD)));
//
// Get Jamo Index Table.
//
Num = (DWORD)(*pBaseAddr);
if (Num > 0)
{
//
// The Jamo Index table size is (Num) bytes.
//
pTblPtrs->NumJamoIndex = Num;
pTblPtrs->pJamoIndex = (PJAMO_TABLE)(pBaseAddr + JAMO_INDEX_HEADER);
}
pBaseAddr += JAMO_INDEX_HEADER + (Num * (sizeof(JAMO_TABLE) / sizeof(WORD)));
//
// Get Jamo Composition State Machine Table.
//
Num = (DWORD)(*pBaseAddr);
if (Num > 0)
{
pTblPtrs->NumJamoComposition = Num;
pTblPtrs->pJamoComposition = (PJAMO_COMPOSE_STATE)(pBaseAddr + JAMO_COMPOSITION_HEADER);
}
//
// The following line is used to move pBaseAddr to the next field.
// Uncomment it if you are adding more fields.
//
// pBaseAddr += JAMO_COMPOSITION_HEADER + (Num * (sizeof(JAMO_COMPOSE_STATE) / sizeof(WORD)));
//
// Return success.
//
return (NO_ERROR);
}
////////////////////////////////////////////////////////////////////////////
//
// GetSortkeyFileInfo
//
// Opens and Maps a view of the section for the sortkey file. It then
// fills in the appropriate field of the global table pointers structure.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG GetSortkeyFileInfo(
LCID Locale,
PLOC_HASH pHashN)
{
HANDLE hSec = (HANDLE)0; // section handle
UNICODE_STRING ObSecName; // section name
LPWORD pBaseAddr; // ptr to base address of section
ULONG rc = 0L; // return code
PEXCEPT_HDR pExceptHdr; // ptr to exception header
PEXCEPT pExceptTbl; // ptr to exception table
PVOID pIdeograph; // ptr to ideograph exception table
WCHAR wszSecName[MAX_SMALL_BUF_LEN]; // Place for the section name string \
NTSTATUS Status;
//
// Make sure we're in the critical section when entering this call.
//
ASSERT(NtCurrentTeb()->ClientId.UniqueThread == gcsTblPtrs.OwningThread);
//
// Make sure the default sortkey table is loaded. If it's not, then
// we shouldn't bother to continue here since the sorting table won't
// be created properly. pHashN->pSortkey will already be NULL, so
// we don't need to set it. Return NO_ERROR here to allow kernel32
// to initialize in case this is winlogon.
//
if (pTblPtrs->pDefaultSortkey == NULL)
{
KdPrint(("NLSAPI: No Default Sorting Table Loaded.\n"));
return (NO_ERROR);
}
//
// Try to Open and Map a view of the section (read only).
//
GET_SORTKEY_SECTION_NAME(Locale, wszSecName, MAX_SMALL_BUF_LEN, &ObSecName);
if (rc = OpenSection( &hSec,
&ObSecName,
(PVOID *)&pBaseAddr,
SECTION_MAP_READ,
FALSE ))
{
//
// Open failed.
// See if any exceptions exist for given Locale ID.
//
rc = NO_ERROR;
if (!FindExceptionPointers( Locale,
&pExceptHdr,
&pExceptTbl,
&pIdeograph,
&rc ))
{
//
// No exceptions for locale, so attach the default sortkey
// table pointer to the hash node and return success.
//
pHashN->pSortkey = pTblPtrs->pDefaultSortkey;
return (NO_ERROR);
}
else
{
//
// See if an error occurred.
//
if (rc != NO_ERROR)
{
//
// This occurs if the ideograph exception file could not be
// created or mapped. Return an error in this case.
//
// return (rc);
//
// On second thought, don't return an error. Returning an
// error can cause kernel32 to not initialize (which, if this
// is winlogon, leads to an unbootable system). Let's just
// patch things up and move on.
//
// LATER -- log an error in the logfile.
//
pHashN->IfIdeographFailure = TRUE;
pHashN->pSortkey = pTblPtrs->pDefaultSortkey;
return (NO_ERROR);
}
//
// Exceptions from default sortkey table exist for the given
// locale. Need to get the correct sortkey table.
// Create a section and call the server to lock it in.
//
Status = CsrBasepNlsCreateSection( NLS_CREATE_SORT_SECTION,
Locale,
&hSec );
//
// Check return from server call.
//
rc = (ULONG)Status;
if (!NT_SUCCESS(rc))
{
if (hSec != NULL)
{
NtClose(hSec);
}
return (rc);
}
//
// Map the section for ReadWrite.
//
if (rc = MapSection( hSec,
(PVOID *)&pBaseAddr,
PAGE_READWRITE,
FALSE ))
{
NtClose(hSec);
return (rc);
}
//
// Copy the Default Sortkey Table to the New Section.
//
RtlMoveMemory( (PVOID)pBaseAddr,
(PVOID)((LPWORD)(pTblPtrs->pDefaultSortkey) -
SORTKEY_HEADER),
(ULONG)(pTblPtrs->DefaultSortkeySize.LowPart) );
//
// Copy exception information to the table.
//
CopyExceptionInfo( (PSORTKEY)(pBaseAddr + SORTKEY_HEADER),
pExceptHdr,
pExceptTbl,
pIdeograph);
//
// Write a 1 to the WORD semaphore (table may now be read).
//
*pBaseAddr = 1;
//
// Unmap the section for Write and remap it for Read.
//
if ((rc = UnMapSection(pBaseAddr)) ||
(rc = MapSection( hSec,
(PVOID *)&pBaseAddr,
PAGE_READONLY,
FALSE )))
{
NtClose(hSec);
return (rc);
}
}
}
//
// Close the section handle.
//
NtClose(hSec);
//
// Check semaphore bit in file. Make sure that the open
// succeeded AFTER all exceptions were added to the memory
// mapped section.
//
if (*pBaseAddr == 0)
{
//
// Another process is still adding the appropriate exception
// information. Must wait for its completion.
//
if (rc = WaitOnEvent(pBaseAddr))
{
UnMapSection(pBaseAddr);
return (rc);
}
}
//
// Save pointer in hash node.
//
pHashN->pSortkey = (PSORTKEY)(pBaseAddr + SORTKEY_HEADER);
//
// Return success.
//
return (NO_ERROR);
}
////////////////////////////////////////////////////////////////////////////
//
// GetSortTablesFileInfo
//
// Stores the appropriate sort table pointers for the given locale in
// the given locale hash node.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
void GetSortTablesFileInfo(
LCID Locale,
PLOC_HASH pHashN)
{
DWORD ctr; // loop counter
PREVERSE_DW pRevDW; // ptr to reverse diacritic table
PDBL_COMPRESS pDblComp; // ptr to double compression table
PCOMPRESS_HDR pCompHdr; // ptr to compression header
//
// Make sure we're in the critical section when entering this call.
//
ASSERT(NtCurrentTeb()->ClientId.UniqueThread == gcsTblPtrs.OwningThread);
//
// Check for Reverse Diacritic Locale.
//
pRevDW = pTblPtrs->pReverseDW;
for (ctr = pTblPtrs->NumReverseDW; ctr > 0; ctr--, pRevDW++)
{
if (*pRevDW == (DWORD)Locale)
{
pHashN->IfReverseDW = TRUE;
break;
}
}
//
// Check for Compression.
//
pCompHdr = pTblPtrs->pCompressHdr;
for (ctr = pTblPtrs->NumCompression; ctr > 0; ctr--, pCompHdr++)
{
if (pCompHdr->Locale == (DWORD)Locale)
{
pHashN->IfCompression = TRUE;
pHashN->pCompHdr = pCompHdr;
if (pCompHdr->Num2 > 0)
{
pHashN->pCompress2 = (PCOMPRESS_2)
(((LPWORD)(pTblPtrs->pCompression)) +
(pCompHdr->Offset));
}
if (pCompHdr->Num3 > 0)
{
pHashN->pCompress3 = (PCOMPRESS_3)
(((LPWORD)(pTblPtrs->pCompression)) +
(pCompHdr->Offset) +
(pCompHdr->Num2 *
(sizeof(COMPRESS_2) / sizeof(WORD))));
}
break;
}
}
//
// Check for Double Compression.
//
if (pHashN->IfCompression)
{
pDblComp = pTblPtrs->pDblCompression;
for (ctr = pTblPtrs->NumDblCompression; ctr > 0; ctr--, pDblComp++)
{
if (*pDblComp == (DWORD)Locale)
{
pHashN->IfDblCompression = TRUE;
break;
}
}
}
}
////////////////////////////////////////////////////////////////////////////
//
// LoadCodePageAsDLL
//
// Try to load a code page as a DLL. If succeeded, the CodePage procedure
// is set.
//
// 05-27-99 SamerA Created.
////////////////////////////////////////////////////////////////////////////
ULONG LoadCodePageAsDLL(
UINT CodePage,
LPFN_CP_PROC *ppfnCPProc)
{
WCHAR pDllName[MAX_PATH_LEN]; // ptr to DLL name
HANDLE hModCPDll; // module handle of code page DLL
ULONG rc = ERROR_INVALID_PARAMETER; // return code
UINT ErrorMode; // error mode
//
// Get the DLL name to load.
//
pDllName[0] = 0;
*ppfnCPProc = NULL;
if (NO_ERROR == GetCodePageDLLPathName(CodePage, pDllName, MAX_PATH_LEN) &&
NlsIsDll(pDllName))
{
//
// Load the DLL and get the procedure address.
// Turn off hard error popups.
//
ErrorMode = SetErrorMode(SEM_NOERROR);
SetErrorMode(SEM_NOERROR | ErrorMode);
hModCPDll = LoadLibrary(pDllName);
SetErrorMode(ErrorMode);
if (hModCPDll)
{
*ppfnCPProc =
(LPFN_CP_PROC)GetProcAddress( hModCPDll,
NLS_CP_DLL_PROC_NAME );
}
if (*ppfnCPProc == NULL)
{
if (hModCPDll)
{
rc = TYPE_E_DLLFUNCTIONNOTFOUND;
FreeLibrary(hModCPDll);
}
else
{
rc = TYPE_E_CANTLOADLIBRARY;
}
}
else
{
rc = NO_ERROR;
}
}
return (rc);
}
////////////////////////////////////////////////////////////////////////////
//
// GetCodePageFileInfo
//
// Opens and Maps a view of the section for the given code page. It then
// creates and inserts a hash node into the global CP hash table.
//
// If the section cannot be opened, it then queries the registry to see if
// the information has been added since the initialization of the DLL. If
// so, then it creates the section and then opens and maps a view of it.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG GetCodePageFileInfo(
UINT CodePage,
PCP_HASH *ppNode)
{
HANDLE hSec = (HANDLE)0; // section handle
UNICODE_STRING ObSecName; // section name
LPWORD pBaseAddr = NULL; // ptr to base address of section
ULONG rc = 0L; // return code
BOOL IsDLL; // true if dll instead of data file
LPFN_CP_PROC pfnCPProc; // Code Page DLL Procedure
WCHAR wszSecName[MAX_SMALL_BUF_LEN]; // Place for the section name string \
//
// Make sure we're in the critical section when entering this call.
//
ASSERT(NtCurrentTeb()->ClientId.UniqueThread == gcsTblPtrs.OwningThread);
//
// See if we're dealing with a DLL or an NLS data file.
//
IsDLL = ((CodePage >= NLS_CP_DLL_RANGE) &&
(CodePage < NLS_CP_ALGORITHM_RANGE));
if (IsDLL)
{
//
// Try loading the codepage DLL
//
ULONG _rc = LoadCodePageAsDLL(CodePage, &pfnCPProc);
if (_rc)
{
if (ERROR_INVALID_PARAMETER == _rc)
{
//
// Not a valid DLL, try loading it as a normal data file
//
IsDLL = FALSE;
}
else
{
//
// Failed to load the DLL or can't find the function entry
// Return the error code
//
return (rc);
}
}
}
if (!IsDLL)
{
//
// Open and Map a view of the section.
//
GET_CP_SECTION_NAME(CodePage, wszSecName, MAX_SMALL_BUF_LEN, &ObSecName);
rc = OpenSection( &hSec,
&ObSecName,
(PVOID *)&pBaseAddr,
SECTION_MAP_READ,
TRUE );
if (!NT_SUCCESS(rc))
{
//
// Open failed, so try to create the section.
// If the creation is successful, the section will be mapped
// to the current process.
//
rc = CsrBasepNlsCreateSection(NLS_CREATE_CODEPAGE_SECTION, CodePage,
&hSec );
if (NT_SUCCESS(rc))
{
rc = MapSection( hSec,
&pBaseAddr,
PAGE_READONLY,
TRUE ); // Close handle (even if fail)
}
if (!NT_SUCCESS(rc))
{
//
// Allow the default ACP and default OEMCP to work if
// it's only the registry that is corrupt. If there is
// still an error, return the error code that was returned
// from the OpenSection call.
//
if (CodePage == NLS_DEFAULT_ACP)
{
//
// Create the default ACP section.
//
if (!NT_SUCCESS(CsrBasepNlsCreateSection(NLS_CREATE_SECTION_DEFAULT_ACP, 0,
&hSec )))
{
return (rc);
}
else
{
//
// Map the section.
//
if (!NT_SUCCESS(MapSection( hSec,
(PVOID *)&pBaseAddr,
PAGE_READONLY,
TRUE )))
{
return (rc);
}
KdPrint(("NLSAPI: Registry is corrupt - Default ACP.\n"));
}
}
else if (CodePage == NLS_DEFAULT_OEMCP)
{
//
// Create the default OEMCP section.
//
if (!NT_SUCCESS(CsrBasepNlsCreateSection( NLS_CREATE_SECTION_DEFAULT_OEMCP, 0,
&hSec )))
{
return (rc);
}
else
{
//
// Map the section.
//
if (!NT_SUCCESS(MapSection( hSec,
(PVOID *)&pBaseAddr,
PAGE_READONLY,
TRUE )))
{
return (rc);
}
KdPrint(("NLSAPI: Registry is corrupt - Default OEMCP.\n"));
}
}
else
{
//
// Return the error code that was returned from the
// OpenSection call.
//
return (rc);
}
}
}
}
//
// Make the hash node and return the result.
//
return (MakeCPHashNode( CodePage,
pBaseAddr,
ppNode,
IsDLL,
pfnCPProc ));
}
////////////////////////////////////////////////////////////////////////////
//
// GetLanguageFileInfo
//
// Opens and Maps a view of the section for the casing tables and sorting
// tables for the given locale.
//
// If the section cannot be opened, it then queries the registry to see if
// the information has been added since the initialization of the DLL. If
// so, then it creates the section and then opens and maps a view of it.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG GetLanguageFileInfo(
LCID Locale,
PLOC_HASH *ppNode,
BOOLEAN fCreateNode,
DWORD dwFlags)
{
LPWORD pBaseAddr = NULL; // ptr to base address of section
MEMORY_BASIC_INFORMATION MemoryBasicInfo;
//
// Make sure we're in the critical section when entering this call.
//
ASSERT(NtCurrentTeb()->ClientId.UniqueThread == gcsTblPtrs.OwningThread);
//
// See if the default language table has been stored yet.
//
if (pTblPtrs->pDefaultLanguage == NULL)
{
//
// Save the default language table and its size in the
// table pointers structure.
//
pTblPtrs->pDefaultLanguage = NtCurrentPeb()->UnicodeCaseTableData;
NtQueryVirtualMemory( NtCurrentProcess(),
pTblPtrs->pDefaultLanguage,
MemoryBasicInformation,
&MemoryBasicInfo,
sizeof(MEMORY_BASIC_INFORMATION),
NULL );
pTblPtrs->LinguistLangSize.QuadPart = MemoryBasicInfo.RegionSize;
ASSERT(MemoryBasicInfo.RegionSize > 0);
}
//
// See if we should load the culturally correct language table.
//
if (dwFlags)
{
if (pTblPtrs->pLangException == NULL)
{
GetLanguageExceptionInfo();
}
//
// Get the default linguistic language table for the given locale.
//
pBaseAddr = GetLinguisticLanguageInfo(Locale);
}
//
// Get the casing table and sorting table pointers.
//
return (MakeLangHashNode( Locale,
pBaseAddr,
ppNode,
fCreateNode ));
}
////////////////////////////////////////////////////////////////////////////
//
// GetLocaleFileInfo
//
// Opens and Maps a view of the section for the given locale. It then
// creates and inserts a hash node into the global LOCALE hash table.
//
// If the section cannot be opened, it then queries the registry to see if
// the information has been added since the initialization of the DLL. If
// so, then it creates the section and then opens and maps a view of it.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG GetLocaleFileInfo(
LCID Locale,
PLOC_HASH *ppNode,
BOOLEAN fCreateNode)
{
HANDLE hSec = (HANDLE)0; // section handle
UNICODE_STRING ObSecName; // section name
LPWORD pBaseAddr; // ptr to base address of section
ULONG rc = 0L; // return code
//
// Make sure we're in the critical section when entering this call.
//
ASSERT(NtCurrentTeb()->ClientId.UniqueThread == gcsTblPtrs.OwningThread);
//
// Open and Map a view of the section if it hasn't been done yet.
//
if ((pBaseAddr = pTblPtrs->pLocaleInfo) == NULL)
{
//
// Get the locale file section pointer.
//
ObSecName.Buffer = NLS_SECTION_LOCALE;
ObSecName.Length = sizeof (NLS_SECTION_LOCALE) - sizeof (WCHAR);
ObSecName.MaximumLength = ObSecName.Length;
if (rc = OpenSection( &hSec,
&ObSecName,
(PVOID *)&pBaseAddr,
SECTION_MAP_READ,
TRUE ))
{
return (rc);
}
//
// Store pointer to locale file and calendar info in table
// structure.
//
pTblPtrs->pLocaleInfo = pBaseAddr;
pTblPtrs->NumCalendars = ((PLOC_CAL_HDR)pBaseAddr)->NumCalendars;
pTblPtrs->pCalendarInfo = pBaseAddr +
((PLOC_CAL_HDR)pBaseAddr)->CalOffset;
}
//
// Make the hash node and return the result.
//
return (MakeLocHashNode( Locale,
pBaseAddr,
ppNode,
fCreateNode ));
}
////////////////////////////////////////////////////////////////////////////
//
// MakeCPHashNode
//
// Creates the hash node for the code page and assigns the fields of the
// hash node to point at the appropriate places in the file.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG MakeCPHashNode(
UINT CodePage,
LPWORD pBaseAddr,
PCP_HASH *ppNode,
BOOL IsDLL,
LPFN_CP_PROC pfnCPProc)
{
PCP_HASH pHashN; // ptr to CP hash node
WORD offMB; // offset to MB table
WORD offWC; // offset to WC table
PGLYPH_TABLE pGlyph; // ptr to glyph table info
PDBCS_RANGE pRange; // ptr to DBCS range
//
// Allocate CP_HASH structure and fill in the CodePage value.
//
CREATE_CODEPAGE_HASH_NODE(CodePage, pHashN);
//
// See if we're dealing with a DLL or an NLS data file.
//
if (IsDLL)
{
if (pfnCPProc == NULL)
{
NLS_FREE_MEM(pHashN);
return (ERROR_INVALID_PARAMETER);
}
pHashN->pfnCPProc = pfnCPProc;
}
else
{
//
// Get the offsets.
//
offMB = pBaseAddr[0];
offWC = offMB + pBaseAddr[offMB];
//
// Attach CP Info to CP hash node.
//
pHashN->pCPInfo = (PCP_TABLE)(pBaseAddr + CP_HEADER);
//
// Attach MB table to CP hash node.
//
pHashN->pMBTbl = pBaseAddr + offMB + MB_HEADER;
//
// Attach Glyph table to CP hash node (if it exists).
// Also, set the pointer to the DBCS ranges based on whether or
// not the GLYPH table is present.
//
pGlyph = pHashN->pMBTbl + MB_TBL_SIZE;
if (pGlyph[0] != 0)
{
pHashN->pGlyphTbl = pGlyph + GLYPH_HEADER;
pRange = pHashN->pDBCSRanges = pHashN->pGlyphTbl + GLYPH_TBL_SIZE;
}
else
{
pRange = pHashN->pDBCSRanges = pGlyph + GLYPH_HEADER;
}
//
// Attach DBCS information to CP hash node.
//
if (pRange[0] > 0)
{
//
// Set the pointer to the offsets section.
//
pHashN->pDBCSOffsets = pRange + DBCS_HEADER;
}
//
// Attach WC table to CP hash node.
//
pHashN->pWC = pBaseAddr + offWC + WC_HEADER;
}
//
// Insert hash node into hash table.
//
INSERT_CP_HASH_NODE(pHashN, pBaseAddr);
//
// Save the pointer to the hash node.
//
if (ppNode != NULL)
{
*ppNode = pHashN;
}
//
// Return success.
//
return (NO_ERROR);
}
////////////////////////////////////////////////////////////////////////////
//
// MakeLangHashNode
//
// Gets the pointers to the casing tables and the sorting tables and
// stores them in the locale hash node given.
//
// If fCreateNode is FALSE, then *ppNode should contain a valid pointer
// to a LOC hash node. Also, the table critical section must be entered
// before calling this routine.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG MakeLangHashNode(
LCID Locale,
LPWORD pBaseAddr,
PLOC_HASH *ppNode,
BOOLEAN fCreateNode)
{
LPWORD pBaseDefault; // ptr to default language section
PLOC_HASH pHashN; // ptr to LOC hash node
ULONG rc = 0L; // return code
//
// If fCreateNode is TRUE, then allocate LOC_HASH structure.
//
if (fCreateNode)
{
CREATE_LOCALE_HASH_NODE(Locale, pHashN);
}
else
{
pHashN = *ppNode;
}
//
// See if the sorting tables still need to be attached.
//
if (pHashN->pSortkey == NULL)
{
//
// Get the sortkey table and attach it to the hash node.
//
if (rc = GetSortkeyFileInfo(Locale, pHashN))
{
if (fCreateNode)
{
NLS_FREE_MEM(pHashN);
}
return (rc);
}
//
// Get the appropriate sorting tables for the locale.
//
GetSortTablesFileInfo(Locale, pHashN);
}
//
// See if the default casing tables still need to be attached.
//
if (!EXIST_LANGUAGE_INFO(pHashN))
{
//
// Get the pointer to the base of the default table.
//
pBaseDefault = pTblPtrs->pDefaultLanguage;
//
// Attach the UPPERCASE table to the hash node.
//
pHashN->pUpperCase = pBaseDefault + LANG_HEADER + UP_HEADER;
//
// Attach the LOWERCASE table to the hash node.
//
// This value must be set LAST, since this is the pointer that
// is checked to see that the language information has been
// initialized.
//
pHashN->pLowerCase = pBaseDefault + LANG_HEADER +
pBaseDefault[LANG_HEADER] + LO_HEADER;
}
//
// See if there is a linguistic table to attach.
//
if (pBaseAddr)
{
//
// Attach the UPPERCASE Linguistic table to the hash node.
//
pHashN->pUpperLinguist = pBaseAddr + LANG_HEADER + UP_HEADER;
//
// Attach the LOWERCASE Linguistic table to the hash node.
//
// This value must be set LAST, since this is the pointer that
// is checked to see that the language information has been
// initialized.
//
pHashN->pLowerLinguist = pBaseAddr + LANG_HEADER +
pBaseAddr[LANG_HEADER] + LO_HEADER;
}
//
// If fCreateNode is TRUE, then insert hash node and save pointer.
//
if (fCreateNode)
{
//
// Insert LOC hash node into hash table.
//
INSERT_LOC_HASH_NODE(pHashN, pBaseAddr);
//
// Save the pointer to the hash node.
//
if (ppNode != NULL)
{
*ppNode = pHashN;
}
}
//
// Return success.
//
return (NO_ERROR);
}
////////////////////////////////////////////////////////////////////////////
//
// MakeLocHashNode
//
// Gets the pointers to the locale tables and stores them in the locale
// hash node given.
//
// NOTE: If a critical section is needed to touch pHashN, then the
// critical section must be entered before calling this routine.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG MakeLocHashNode(
LCID Locale,
LPWORD pBaseAddr,
PLOC_HASH *ppNode,
BOOLEAN fCreateNode)
{
LANGID Language; // language id
PLOC_HASH pHashN; // ptr to LOC hash node
DWORD Num; // total number of locales
PLOCALE_HDR pFileHdr; // ptr to locale header entry
ULONG rc = 0L; // return code
//
// Save the language id.
//
Language = LANGIDFROMLCID(Locale);
//
// Search for the right locale id information.
//
Num = ((PLOC_CAL_HDR)pBaseAddr)->NumLocales;
pFileHdr = (PLOCALE_HDR)(pBaseAddr + LOCALE_HDR_OFFSET);
for (; (Num != 0) && (pFileHdr->Locale != Language); Num--, pFileHdr++)
;
//
// See if the locale was found in the file.
//
if (Num != 0)
{
//
// Locale id was found, so increment the pointer to point at
// the beginning of the locale information.
//
pBaseAddr += pFileHdr->Offset;
}
else
{
//
// Return an error. The given locale is not supported.
//
return (ERROR_INVALID_PARAMETER);
}
//
// If fCreateNode is TRUE, then allocate LOC_HASH structure.
//
if (fCreateNode)
{
CREATE_LOCALE_HASH_NODE(Locale, pHashN);
}
else
{
pHashN = *ppNode;
}
//
// Attach Information to structure.
//
// The pLocaleFixed value must be set LAST, since this is the pointer
// that is checked to see that the locale information has been
// initialized.
//
pHashN->pLocaleHdr = (PLOCALE_VAR)pBaseAddr;
pHashN->pLocaleFixed = (PLOCALE_FIXED)(pBaseAddr +
(sizeof(LOCALE_VAR) / sizeof(WORD)));
//
// If fCreateNode is TRUE, then insert hash node and save pointer.
//
if (fCreateNode)
{
//
// Insert LOC hash node into hash table.
//
INSERT_LOC_HASH_NODE(pHashN, pBaseAddr);
//
// Save the pointer to the hash node.
//
if (ppNode != NULL)
{
*ppNode = pHashN;
}
}
//
// Return success.
//
return (NO_ERROR);
}
////////////////////////////////////////////////////////////////////////////
//
// GetCPHashNode
//
// Returns a pointer to the appropriate CP hash node given the codepage.
// If no table could be found for the given codepage, NULL is returned.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
PCP_HASH FASTCALL GetCPHashNode(
UINT CodePage)
{
PCP_HASH pHashN; // ptr to CP hash node
//
// Get hash node.
//
FIND_CP_HASH_NODE(CodePage, pHashN);
//
// If the hash node does not exist, try to get the tables
// from the appropriate data file.
//
// NOTE: No need to check error code from GetCodePageFileInfo,
// because pHashN is not touched if there was an
// error. Thus, pHashN will still be NULL, and an
// "error" will be returned from this routine.
//
if (pHashN == NULL)
{
//
// Hash node does NOT exist.
//
RtlEnterCriticalSection(&gcsTblPtrs);
FIND_CP_HASH_NODE(CodePage, pHashN);
if (pHashN == NULL)
{
GetCodePageFileInfo(CodePage, &pHashN);
}
RtlLeaveCriticalSection(&gcsTblPtrs);
}
//
// Return pointer to hash node.
//
return (pHashN);
}
////////////////////////////////////////////////////////////////////////////
//
// GetLangHashNode
//
// Returns a pointer to the appropriate LOC hash node given the locale.
// If no table could be found for the given locale, NULL is returned.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
PLOC_HASH FASTCALL GetLangHashNode(
LCID Locale,
DWORD dwFlags)
{
PLOC_HASH pHashN; // ptr to LOC hash node
//
// Get hash node.
//
FIND_LOCALE_HASH_NODE(Locale, pHashN);
//
// If the hash node does not exist, try to get the tables
// from the appropriate data file.
//
// NOTE: No need to check error code from GetLanguageFileInfo,
// because pHashN is not touched if there was an
// error. Thus, pHashN will still be NULL, and an
// "error" will be returned from this routine.
//
if (pHashN == NULL)
{
//
// If a sort id exists, make sure it's valid.
//
if (SORTIDFROMLCID(Locale))
{
if (!IsValidSortId(Locale))
{
return (NULL);
}
}
//
// Hash node does NOT exist.
//
RtlEnterCriticalSection(&gcsTblPtrs);
FIND_LOCALE_HASH_NODE(Locale, pHashN);
if (pHashN == NULL)
{
//
// Hash node still does NOT exist.
//
GetLanguageFileInfo(Locale, &pHashN, TRUE, dwFlags);
RtlLeaveCriticalSection(&gcsTblPtrs);
return (pHashN);
}
RtlLeaveCriticalSection(&gcsTblPtrs);
}
//
// Hash node DOES exist.
//
if (!EXIST_LANGUAGE_INFO(pHashN) ||
((dwFlags != 0) && !EXIST_LINGUIST_LANGUAGE_INFO(pHashN)))
{
//
// Casing tables and sorting tables not yet stored in
// hash node.
//
RtlEnterCriticalSection(&gcsTblPtrs);
if (!EXIST_LANGUAGE_INFO(pHashN) ||
((dwFlags != 0) && !EXIST_LINGUIST_LANGUAGE_INFO(pHashN)))
{
if (GetLanguageFileInfo(Locale, &pHashN, FALSE, dwFlags))
{
RtlLeaveCriticalSection(&gcsTblPtrs);
return (NULL);
}
}
RtlLeaveCriticalSection(&gcsTblPtrs);
}
//
// Return pointer to hash node.
//
return (pHashN);
}
////////////////////////////////////////////////////////////////////////////
//
// GetLocHashNode
//
// Returns a pointer to the appropriate LOC hash node given the locale.
// If no table could be found for the given locale, NULL is returned.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
PLOC_HASH FASTCALL GetLocHashNode(
LCID Locale)
{
PLOC_HASH pHashN; // ptr to LOC hash node
//
// Get hash node.
//
FIND_LOCALE_HASH_NODE(Locale, pHashN);
//
// If the hash node does not exist, try to get the table
// from locale.nls.
//
// NOTE: No need to check error code from GetLocaleFileInfo,
// because pHashN is not touched if there was an
// error. Thus, pHashN will still be NULL, and an
// "error" will be returned from this routine.
//
if (pHashN == NULL)
{
//
// If a sort id exists, make sure it's valid.
//
if (SORTIDFROMLCID(Locale))
{
if (!IsValidSortId(Locale))
{
return (NULL);
}
}
//
// Hash node does NOT exist.
//
RtlEnterCriticalSection(&gcsTblPtrs);
FIND_LOCALE_HASH_NODE(Locale, pHashN);
if (pHashN == NULL)
{
//
// Hash node still does NOT exist.
//
GetLocaleFileInfo(Locale, &pHashN, TRUE);
RtlLeaveCriticalSection(&gcsTblPtrs);
return (pHashN);
}
RtlLeaveCriticalSection(&gcsTblPtrs);
}
//
// Hash node DOES exist.
//
if (!EXIST_LOCALE_INFO(pHashN))
{
//
// Locale tables not yet stored in hash node.
//
RtlEnterCriticalSection(&gcsTblPtrs);
if (!EXIST_LOCALE_INFO(pHashN))
{
if (GetLocaleFileInfo(Locale, &pHashN, FALSE))
{
RtlLeaveCriticalSection(&gcsTblPtrs);
return (NULL);
}
}
RtlLeaveCriticalSection(&gcsTblPtrs);
}
//
// Return pointer to hash node.
//
return (pHashN);
}
////////////////////////////////////////////////////////////////////////////
//
// GetCalendar
//
// Gets the pointer to the specific calendar table. It stores it in the
// calendar information array in the global table pointers structure if it
// was not done yet.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG GetCalendar(
CALID Calendar,
PCAL_INFO *ppCalInfo)
{
PCALENDAR_HDR pCalHdr; // ptr to beginning of calendar header
DWORD Num; // total number of calendars
//
// Get number of calendars.
//
Num = pTblPtrs->NumCalendars;
//
// Make sure calendar id is within the appropriate range.
//
if (Calendar > Num)
{
return (ERROR_INVALID_PARAMETER);
}
//
// Check to see if calendar info has already been found.
//
if ((*ppCalInfo = (pTblPtrs->pCalTbl)[Calendar]) != NULL)
{
//
// Return success. Calendar info was found.
//
return (NO_ERROR);
}
RtlEnterCriticalSection(&gcsTblPtrs);
if ((*ppCalInfo = (pTblPtrs->pCalTbl)[Calendar]) != NULL)
{
//
// Return success. Calendar info was found.
//
RtlLeaveCriticalSection(&gcsTblPtrs);
return (NO_ERROR);
}
//
// Search for the appropriate calendar id information.
//
pCalHdr = (PCALENDAR_HDR)(pTblPtrs->pCalendarInfo);
while ((Num != 0) && (pCalHdr->Calendar != Calendar))
{
Num--;
pCalHdr++;
}
//
// See if the calendar was found in the file.
//
if (Num != 0)
{
//
// Calendar id was found.
//
// Store the pointer to the beginning of the calendar info
// in the calendar table array.
//
*ppCalInfo = (PCAL_INFO)((LPWORD)(pTblPtrs->pCalendarInfo) +
pCalHdr->Offset);
(pTblPtrs->pCalTbl)[Calendar] = *ppCalInfo;
//
// Return success. Calendar info was found.
//
RtlLeaveCriticalSection(&gcsTblPtrs);
return (NO_ERROR);
}
RtlLeaveCriticalSection(&gcsTblPtrs);
//
// Calendar id was not found in the locale.nls file.
// Return an error. The given calendar is not supported.
//
return (ERROR_INVALID_PARAMETER);
}
//-------------------------------------------------------------------------//
// INTERNAL ROUTINES //
//-------------------------------------------------------------------------//
////////////////////////////////////////////////////////////////////////////
//
// IsValidSortId
//
// Checks to see if the given locale has a valid sort id.
//
// 11-15-96 JulieB Created.
////////////////////////////////////////////////////////////////////////////
BOOL IsValidSortId(
LCID Locale)
{
WCHAR pTmpBuf[MAX_PATH]; // temp buffer
PKEY_VALUE_FULL_INFORMATION pKeyValueFull; // ptr to query info
BYTE pStatic[MAX_KEY_VALUE_FULLINFO]; // ptr to static buffer
BOOL IfAlloc = FALSE; // if buffer was allocated
ULONG rc = 0L; // return code
//
// Make sure there is a sort id.
//
if (!SORTIDFROMLCID(Locale))
{
return (TRUE);
}
//
// Open the Alternate Sorts registry key.
//
OPEN_ALT_SORTS_KEY(FALSE);
//
// Convert locale value to Unicode string.
//
if (NlsConvertIntegerToString(Locale, 16, 8, pTmpBuf, MAX_PATH))
{
return (FALSE);
}
//
// Query the registry for the value.
//
pKeyValueFull = (PKEY_VALUE_FULL_INFORMATION)pStatic;
if (rc = QueryRegValue( hAltSortsKey,
pTmpBuf,
&pKeyValueFull,
MAX_KEY_VALUE_FULLINFO,
&IfAlloc ))
{
return (FALSE);
}
//
// Free the buffer used for the query.
//
if (IfAlloc)
{
NLS_FREE_MEM(pKeyValueFull);
}
//
// Return success.
//
return (TRUE);
}
////////////////////////////////////////////////////////////////////////////
//
// GetLanguageExceptionInfo
//
// Opens and Maps a view of the section for the language exception file.
// It then fills in the appropriate fields of the global table pointers
// structure.
//
// 08-30-95 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG GetLanguageExceptionInfo()
{
HANDLE hSec = (HANDLE)0; // section handle
LPWORD pBaseAddr; // ptr to base address of section
DWORD Num; // number of entries in table
ULONG rc = 0L; // return code
//
// Make sure we're in the critical section when entering this call.
//
ASSERT(NtCurrentTeb()->ClientId.UniqueThread == gcsTblPtrs.OwningThread);
//
// Make sure the table isn't already there.
//
if (pTblPtrs->pLangException != NULL)
{
return (NO_ERROR);
}
//
// Create and map the section, and then save the pointer.
//
if ((rc = CsrBasepNlsCreateSection( NLS_CREATE_SECTION_LANG_EXCEPT, 0,
&hSec )) == NO_ERROR)
{
//
// Map a View of the Section.
//
if ((rc = MapSection( hSec,
&pBaseAddr,
PAGE_READONLY,
TRUE )) != NO_ERROR)
{
return (rc);
}
}
else
{
return (rc);
}
//
// Save the pointers to the exception information.
//
Num = *((LPDWORD)pBaseAddr);
if (Num > 0)
{
pTblPtrs->NumLangException = Num;
pTblPtrs->pLangExceptHdr = (PL_EXCEPT_HDR)(pBaseAddr +
L_EXCEPT_HDR_OFFSET);
pTblPtrs->pLangException = (PL_EXCEPT)(pBaseAddr +
L_EXCEPT_HDR_OFFSET +
(Num * (sizeof(L_EXCEPT_HDR) /
sizeof(WORD))));
}
//
// Return success.
//
return (NO_ERROR);
}
////////////////////////////////////////////////////////////////////////////
//
// GetLinguisticLanguageInfo
//
// Opens and Maps a view of the section for the default linguistic language
// table. It then stores the pointer to the table in the global pointer
// table.
//
// 08-30-95 JulieB Created.
////////////////////////////////////////////////////////////////////////////
LPWORD GetLinguisticLanguageInfo(
LCID Locale)
{
HANDLE hSec = (HANDLE)0; // section handle
UNICODE_STRING ObSecName; // section name
LPWORD pBaseAddr; // ptr to base address of section
ULONG rc = 0L; // return code
SECTION_BASIC_INFORMATION SecInfo; // section information - query
//
// Make sure we're in the critical section when entering this call.
//
ASSERT(NtCurrentTeb()->ClientId.UniqueThread == gcsTblPtrs.OwningThread);
//
// Create/Open and Map a view of the section if it hasn't been done yet.
//
if (pTblPtrs->pLinguistLanguage == NULL)
{
//
// See if we can simply open the section.
//
RtlInitUnicodeString(&ObSecName, NLS_SECTION_LANG_INTL);
if (rc = OpenSection( &hSec,
&ObSecName,
(PVOID *)&pBaseAddr,
SECTION_MAP_READ,
TRUE ))
{
//
// Need to create the default linguistic language section.
//
if (CreateAndCopyLanguageExceptions(0L, &pBaseAddr))
{
return (NULL);
}
}
//
// Get Default Linguistic Language Information.
//
pTblPtrs->pLinguistLanguage = (P844_TABLE)(pBaseAddr);
}
//
// Now see if there are any exceptions for the given locale.
//
if (CreateAndCopyLanguageExceptions(Locale, &pBaseAddr))
{
return (pTblPtrs->pLinguistLanguage);
}
//
// Return success.
//
return (pBaseAddr);
}
////////////////////////////////////////////////////////////////////////////
//
// CreateAndCopyLanguageExceptions
//
// Creates the section for the new language table (if necessary) and then
// copies the exceptions to the table.
//
// 08-30-95 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG CreateAndCopyLanguageExceptions(
LCID Locale,
LPWORD *ppBaseAddr)
{
HANDLE hSec = (HANDLE)0; // section handle
UNICODE_STRING ObSecName; // section name
LPWORD pBaseAddr; // ptr to base address of section
P844_TABLE pLangDefault; // ptr to default table to copy from
ULONG rc = 0L; // return code
PL_EXCEPT_HDR pExceptHdr; // ptr to exception header
PL_EXCEPT pExceptTbl; // ptr to exception table
WCHAR wszSecName[MAX_SMALL_BUF_LEN]; // Place for the section name string \
NTSTATUS Status;
//
// Make sure we're in the critical section when entering this call.
//
ASSERT(NtCurrentTeb()->ClientId.UniqueThread == gcsTblPtrs.OwningThread);
if (Locale == 0)
{
//
// Creating the default section.
//
RtlInitUnicodeString(&ObSecName, NLS_SECTION_LANG_INTL);
pLangDefault = pTblPtrs->pDefaultLanguage;
}
else
{
GET_LANG_SECTION_NAME(Locale, wszSecName, MAX_SMALL_BUF_LEN, &ObSecName);
pLangDefault = pTblPtrs->pLinguistLanguage;
}
//
// Try to Open and Map a view of the section (read only).
//
if (rc = OpenSection( &hSec,
&ObSecName,
(PVOID *)&pBaseAddr,
SECTION_MAP_READ,
FALSE ))
{
//
// Open failed.
// See if any exceptions exist for given Locale ID.
//
if (!FindLanguageExceptionPointers( Locale,
&pExceptHdr,
&pExceptTbl ) &&
(Locale != 0))
{
//
// No exceptions for locale and we're not trying to create
// the default table, so return the pointer to the default
// table (which should always be created at this point).
//
*ppBaseAddr = pTblPtrs->pLinguistLanguage;
return (NO_ERROR);
}
else
{
//
// Exceptions exist for the given locale. Need to create the
// new section (and call the server to make it permanent).
//
Status = CsrBasepNlsCreateSection( NLS_CREATE_LANG_EXCEPTION_SECTION,
Locale,
&hSec );
//
// Check return from server call.
//
rc = (ULONG)Status;
if (!NT_SUCCESS(rc))
{
if (hSec != NULL)
{
NtClose(hSec);
}
return (rc);
}
//
// Map the section for ReadWrite.
//
if (rc = MapSection( hSec,
(PVOID *)&pBaseAddr,
PAGE_READWRITE,
FALSE ))
{
NtClose(hSec);
return (rc);
}
//
// Put a 0 in the semaphore part to denote that the file
// is not ready yet.
//
*pBaseAddr = 0;
//
// Copy the Default Language Table to the New Section.
//
RtlMoveMemory( (PVOID)((LPWORD)pBaseAddr + LANG_HEADER),
(PVOID)((LPWORD)(pLangDefault) + LANG_HEADER),
(ULONG)(pTblPtrs->LinguistLangSize.LowPart -
(LANG_HEADER * sizeof(WORD))) );
//
// Copy exception information to the table.
//
CopyLanguageExceptionInfo( pBaseAddr,
pExceptHdr,
pExceptTbl );
//
// Write a 1 to the WORD semaphore (table may now be read).
//
*pBaseAddr = 1;
//
// Unmap the section for Write and remap it for Read.
//
if ((rc = UnMapSection(pBaseAddr)) ||
(rc = MapSection( hSec,
(PVOID *)&pBaseAddr,
PAGE_READONLY,
FALSE )))
{
NtClose(hSec);
return (rc);
}
}
}
//
// Close the section handle.
//
NtClose(hSec);
//
// Check semaphore bit in file. Make sure that the open
// succeeded AFTER all exceptions were added to the memory
// mapped section.
//
if (*pBaseAddr == 0)
{
//
// Another process is still adding the appropriate exception
// information. Must wait for its completion.
//
if (rc = WaitOnEvent(pBaseAddr))
{
UnMapSection(pBaseAddr);
return (rc);
}
}
//
// Return the pointer to the section.
//
*ppBaseAddr = pBaseAddr;
//
// Return success.
//
return (NO_ERROR);
}
////////////////////////////////////////////////////////////////////////////
//
// FindLanguageExceptionPointers
//
// Checks to see if any exceptions exist for the given locale id. If
// exceptions exist, then TRUE is returned and the pointer to the exception
// header and the pointer to the exception table are stored in the given
// parameters.
//
// 08-30-95 JulieB Created.
////////////////////////////////////////////////////////////////////////////
BOOL FASTCALL FindLanguageExceptionPointers(
LCID Locale,
PL_EXCEPT_HDR *ppExceptHdr,
PL_EXCEPT *ppExceptTbl)
{
DWORD ctr; // loop counter
PL_EXCEPT_HDR pHdr; // ptr to exception header
BOOL rc = FALSE; // return value
//
// Make sure we're in the critical section when entering this call.
//
ASSERT(NtCurrentTeb()->ClientId.UniqueThread == gcsTblPtrs.OwningThread);
//
// Initialize pointers.
//
*ppExceptHdr = NULL;
*ppExceptTbl = NULL;
//
// Need to search down the exception header for the given locale.
//
pHdr = pTblPtrs->pLangExceptHdr;
for (ctr = pTblPtrs->NumLangException; ctr > 0; ctr--, pHdr++)
{
if (pHdr->Locale == (DWORD)Locale)
{
//
// Found the locale id, so set the pointers.
//
*ppExceptHdr = pHdr;
*ppExceptTbl = (PL_EXCEPT)(((LPWORD)(pTblPtrs->pLangException)) +
pHdr->Offset);
//
// Set the return code for success.
//
rc = TRUE;
break;
}
}
//
// Return the value in rc.
//
return (rc);
}
////////////////////////////////////////////////////////////////////////////
//
// CopyLanguageExceptionInfo
//
// Copies the language exception information to the given language table.
//
// 08-30-95 JulieB Created.
////////////////////////////////////////////////////////////////////////////
void FASTCALL CopyLanguageExceptionInfo(
LPWORD pBaseAddr,
PL_EXCEPT_HDR pExceptHdr,
PL_EXCEPT pExceptTbl)
{
DWORD ctr; // loop counter
P844_TABLE pUpCase; // ptr to upper case table
P844_TABLE pLoCase; // ptr to lower case table
//
// Make sure we're in the critical section when entering this call.
//
ASSERT(NtCurrentTeb()->ClientId.UniqueThread == gcsTblPtrs.OwningThread);
if (pExceptTbl)
{
//
// Get the pointers to the upper and lower case table.
//
pUpCase = pBaseAddr + LANG_HEADER + UP_HEADER;
pLoCase = pBaseAddr + LANG_HEADER + pBaseAddr[LANG_HEADER] + LO_HEADER;
//
// For each entry in the exception table, copy the information to the
// sortkey table.
//
for (ctr = pExceptHdr->NumUpEntries; ctr > 0; ctr--, pExceptTbl++)
{
TRAVERSE_844_W(pUpCase, pExceptTbl->UCP) = pExceptTbl->AddAmount;
}
for (ctr = pExceptHdr->NumLoEntries; ctr > 0; ctr--, pExceptTbl++)
{
TRAVERSE_844_W(pLoCase, pExceptTbl->UCP) = pExceptTbl->AddAmount;
}
}
}
////////////////////////////////////////////////////////////////////////////
//
// FindExceptionPointers
//
// Checks to see if any exceptions exist for the given locale id. If
// exceptions exist, then TRUE is returned and the pointer to the exception
// header and the pointer to the exception table are stored in the given
// parameters.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
BOOL FASTCALL FindExceptionPointers(
LCID Locale,
PEXCEPT_HDR *ppExceptHdr,
PEXCEPT *ppExceptTbl,
PVOID *ppIdeograph,
PULONG pReturn)
{
HANDLE hSec = (HANDLE)0; // section handle
DWORD ctr; // loop counter
PEXCEPT_HDR pHdr; // ptr to exception header
BOOL bFound = FALSE; // if an exception is found
PIDEOGRAPH_LCID pIdeoLcid; // ptr to ideograph lcid entry
PVOID pBaseAddr; // ptr to base address of section
//
// Make sure we're in the critical section when entering this call.
//
ASSERT(NtCurrentTeb()->ClientId.UniqueThread == gcsTblPtrs.OwningThread);
//
// Initialize pointers.
//
*ppExceptHdr = NULL;
*ppExceptTbl = NULL;
*ppIdeograph = NULL;
*pReturn = NO_ERROR;
//
// Need to search down the exception header for the given locale.
//
pHdr = pTblPtrs->pExceptHdr;
for (ctr = pTblPtrs->NumException; ctr > 0; ctr--, pHdr++)
{
if (pHdr->Locale == (DWORD)Locale)
{
//
// Found the locale id, so set the pointers.
//
*ppExceptHdr = pHdr;
*ppExceptTbl = (PEXCEPT)(((LPWORD)(pTblPtrs->pException)) +
pHdr->Offset);
//
// Set the return code to show that an exception has been
// found.
//
bFound = TRUE;
break;
}
}
//
// Need to search down the ideograph lcid exception list for the
// given locale.
//
pIdeoLcid = pTblPtrs->pIdeographLcid;
for (ctr = pTblPtrs->NumIdeographLcid; ctr > 0; ctr--, pIdeoLcid++)
{
if (pIdeoLcid->Locale == (DWORD)Locale)
{
//
// Found the locale id, so create/open and map the section
// for the appropriate file.
//
if (*pReturn = CreateSectionTemp(&hSec, pIdeoLcid->pFileName))
{
//
// Ideograph file section could not be created, so return
// the error.
//
return (TRUE);
}
if (*pReturn = MapSection(hSec, &pBaseAddr, PAGE_READONLY, TRUE))
{
//
// Ideograph file section could not be mapped, so close
// the created section and return the error.
//
NtClose(hSec);
return (TRUE);
}
//
// Set the pointer to the ideograph information.
//
*ppIdeograph = pBaseAddr;
//
// Set the return code to show that an exception has been
// found.
//
bFound = TRUE;
break;
}
}
//
// Return the appropriate value.
//
return (bFound);
}
////////////////////////////////////////////////////////////////////////////
//
// CopyExceptionInfo
//
// Copies the exception information to the given sortkey table.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
void FASTCALL CopyExceptionInfo(
PSORTKEY pSortkey,
PEXCEPT_HDR pExceptHdr,
PEXCEPT pExceptTbl,
PVOID pIdeograph)
{
DWORD ctr; // loop counter
PIDEOGRAPH_EXCEPT_HDR pHdrIG; // ptr to ideograph exception header
PIDEOGRAPH_EXCEPT pEntryIG; // ptr to ideograph exception entry
PEXCEPT pEntryIGEx; // ptr to ideograph exception entry ex
//
// Make sure we're in the critical section when entering this call.
//
ASSERT(NtCurrentTeb()->ClientId.UniqueThread == gcsTblPtrs.OwningThread);
//
// For each entry in the exception table, copy the information to the
// sortkey table.
//
if (pExceptTbl)
{
for (ctr = pExceptHdr->NumEntries; ctr > 0; ctr--, pExceptTbl++)
{
(pSortkey[pExceptTbl->UCP]).UW.Unicode = pExceptTbl->Unicode;
(pSortkey[pExceptTbl->UCP]).Diacritic = pExceptTbl->Diacritic;
(pSortkey[pExceptTbl->UCP]).Case = pExceptTbl->Case;
}
}
//
// For each entry in the ideograph exception table, copy the
// information to the sortkey table.
//
if (pIdeograph)
{
pHdrIG = (PIDEOGRAPH_EXCEPT_HDR)pIdeograph;
ctr = pHdrIG->NumEntries;
if (pHdrIG->NumColumns == 2)
{
pEntryIG = (PIDEOGRAPH_EXCEPT)( ((LPBYTE)pIdeograph) +
sizeof(IDEOGRAPH_EXCEPT_HDR) );
for (; ctr > 0; ctr--, pEntryIG++)
{
(pSortkey[pEntryIG->UCP]).UW.Unicode = pEntryIG->Unicode;
}
}
else
{
pEntryIGEx = (PEXCEPT)( ((LPBYTE)pIdeograph) +
sizeof(IDEOGRAPH_EXCEPT_HDR) );
for (; ctr > 0; ctr--, pEntryIGEx++)
{
(pSortkey[pEntryIGEx->UCP]).UW.Unicode = pEntryIGEx->Unicode;
(pSortkey[pEntryIGEx->UCP]).Diacritic = pEntryIGEx->Diacritic;
(pSortkey[pEntryIGEx->UCP]).Case = pEntryIGEx->Case;
}
}
//
// Unmap and Close the ideograph section.
//
UnMapSection(pIdeograph);
}
}
////////////////////////////////////////////////////////////////////////////
//
// WaitOnEvent
//
// Waits (via timeout) for the semaphore dword to be set to a non-zero
// value.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG WaitOnEvent(
LPWORD pSem)
{
TIME TimeOut; // ptr to timeout
//
// Set up the TIME structure.
//
TimeOut.QuadPart = -100000;
//
// Wait on the event until the semaphore is set to non-zero.
// Use a timeout on the wait.
//
do
{
NtDelayExecution(FALSE, &TimeOut);
} while (*pSem == 0);
//
// Return success.
//
return (NO_ERROR);
}