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/*++
Copyright (c) 1991-2000, Microsoft Corporation All rights reserved.
Module Name:
util.c
Abstract:
This file contains utility functions that are shared across NLS's code
modules, but are not necessarily part of any of the existing code
modules.
Private APIs found in this file:
NlsGetCacheUpdateCount
External Routines found in this file:
IsValidSeparatorString
IsValidGroupingString
IsValidCalendarType
IsValidCalendarTypeStr
GetUserInfo
GetPreComposedChar
GetCompositeChars
InsertPreComposedForm
InsertFullWidthPreComposedForm
InsertCompositeForm
NlsConvertIntegerToString
NlsConvertIntegerToHexStringW
NlsConvertStringToIntegerW
NlsStrCpyW
NlsStrCatW
NlsStrLenW
NlsStrNCatW
NlsStrEqualW
NlsStrNEqualW
GetStringTableEntry
NlsIsDll
Revision History:
05-31-91 JulieB Created.
--*/
//
// Include Files.
//
#include "nls.h"
//-------------------------------------------------------------------------//
// PRIVATE API ROUTINES //
//-------------------------------------------------------------------------//
////////////////////////////////////////////////////////////////////////////
//
// NlsGetCacheUpdateCount
//
// Returns the current cache update count. The cache update count is
// updated whenever the HKCU\Control Panel\International settings are
// modified. This count allows the caller to see if the cache has been
// updated since the last time this function was called.
//
// This private api is needed by the Complex Script Language Pack
// (CSLPK) to enable it to quickly see if the international section of
// the registry has been modified.
//
////////////////////////////////////////////////////////////////////////////
ULONG WINAPI NlsGetCacheUpdateCount(void)
{
return (pNlsUserInfo->ulCacheUpdateCount);
}
//-------------------------------------------------------------------------//
// EXTERNAL ROUTINES //
//-------------------------------------------------------------------------//
////////////////////////////////////////////////////////////////////////////
//
// IsValidSeparatorString
//
// Returns TRUE if the given string is valid. Otherwise, it returns FALSE.
//
// A valid string is one that does NOT contain any code points between
// L'0' and L'9', and does NOT have a length greater than the maximum.
//
// NOTE: The string must be a null terminated string.
//
// 10-12-93 JulieB Created.
////////////////////////////////////////////////////////////////////////////
BOOL IsValidSeparatorString(
LPCWSTR pString,
ULONG MaxLength,
BOOL fCheckZeroLen)
{
ULONG Length; // string length
LPWSTR pCur; // ptr to current position in string
//
// Search down the string to see if the chars are valid.
// Save the length of the string.
//
pCur = (LPWSTR)pString;
while (*pCur)
{
if ((*pCur >= NLS_CHAR_ZERO) && (*pCur <= NLS_CHAR_NINE))
{
//
// String is NOT valid.
//
return (FALSE);
}
pCur++;
}
Length = (ULONG)(pCur - (LPWSTR)pString);
//
// Make sure the length is not greater than the maximum allowed.
// Also, check for 0 length string (if appropriate).
//
if ((Length >= MaxLength) ||
((fCheckZeroLen) && (Length == 0)))
{
//
// String is NOT valid.
//
return (FALSE);
}
//
// String is valid.
//
return (TRUE);
}
////////////////////////////////////////////////////////////////////////////
//
// IsValidGroupingString
//
// Returns TRUE if the given string is valid. Otherwise, it returns FALSE.
//
// A valid string is one that begins and ends with a number between
// L'0' and L'9', alternates between a number and a semicolon, and does
// NOT have a length greater than the maximum.
// (eg. 3;2;0 or 3;0 or 0 or 3)
//
// NOTE: The string must be a null terminated string.
//
// 01-05-98 JulieB Created.
////////////////////////////////////////////////////////////////////////////
BOOL IsValidGroupingString(
LPCWSTR pString,
ULONG MaxLength,
BOOL fCheckZeroLen)
{
ULONG Length; // string length
LPWSTR pCur; // ptr to current position in string
//
// Search down the string to see if the chars are valid.
// Save the length of the string.
//
pCur = (LPWSTR)pString;
while (*pCur)
{
if ((*pCur < NLS_CHAR_ZERO) || (*pCur > NLS_CHAR_NINE))
{
//
// String is NOT valid.
//
return (FALSE);
}
pCur++;
if (*pCur)
{
if ((*pCur != NLS_CHAR_SEMICOLON) || (*(pCur + 1) == 0))
{
//
// String is NOT valid.
//
return (FALSE);
}
pCur++;
}
}
Length = (ULONG)(pCur - (LPWSTR)pString);
//
// Make sure the length is not greater than the maximum allowed.
// Also, check for 0 length string (if appropriate).
//
if ((Length >= MaxLength) ||
((fCheckZeroLen) && (Length == 0)))
{
//
// String is NOT valid.
//
return (FALSE);
}
//
// String is valid.
//
return (TRUE);
}
////////////////////////////////////////////////////////////////////////////
//
// IsValidCalendarType
//
// Returns the pointer to the optional calendar structure if the given
// calendar type is valid for the given locale. Otherwise, it returns
// NULL.
//
// 10-12-93 JulieB Created.
////////////////////////////////////////////////////////////////////////////
LPWORD IsValidCalendarType(
PLOC_HASH pHashN,
CALID CalId)
{
LPWORD pOptCal; // ptr to list of optional calendars
LPWORD pEndOptCal; // ptr to end of list of optional calendars
//
// Make sure the Cal Id is not zero, since that may be in the
// optional calendar section (meaning no optional calendars).
//
if (CalId == 0)
{
return (NULL);
}
//
// Search down the list of optional calendars.
//
pOptCal = (LPWORD)(pHashN->pLocaleHdr) + pHashN->pLocaleHdr->IOptionalCal;
pEndOptCal = (LPWORD)(pHashN->pLocaleHdr) + pHashN->pLocaleHdr->SDayName1;
while (pOptCal < pEndOptCal)
{
//
// Check the calendar ids.
//
if (CalId == ((POPT_CAL)pOptCal)->CalId)
{
//
// Calendar id is valid for the given locale.
//
return (pOptCal);
}
//
// Increment to the next optional calendar.
//
pOptCal += ((POPT_CAL)pOptCal)->Offset;
}
//
// Calendar id is NOT valid if this point is reached.
//
return (NULL);
}
////////////////////////////////////////////////////////////////////////////
//
// IsValidCalendarTypeStr
//
// Converts the calendar string to an integer and validates the calendar
// id for the given locale. It return a pointer to the optional calendar
// structure, or null if the calendar id was invalid.
//
// 10-19-93 JulieB Created.
////////////////////////////////////////////////////////////////////////////
LPWORD IsValidCalendarTypeStr(
PLOC_HASH pHashN,
LPCWSTR pCalStr)
{
UNICODE_STRING ObUnicodeStr; // value string
CALID CalNum; // calendar id
//
// Convert the string to an integer value.
//
RtlInitUnicodeString(&ObUnicodeStr, pCalStr);
if (RtlUnicodeStringToInteger(&ObUnicodeStr, 10, &CalNum))
{
return (NULL);
}
//
// Validate the calendar id and return the pointer to the
// optional calendar structure.
//
return (IsValidCalendarType(pHashN, CalNum));
}
////////////////////////////////////////////////////////////////////////////
//
// GetCPFileNameFromRegistry
//
// Gets the name of the code page file from the registry. If pResultBuf
// or Size == 0, then just return true if it exists in the registry, but
// don't return the actual value.
//
// 05-31-2002 ShawnSte Created.
////////////////////////////////////////////////////////////////////////////
BOOL GetCPFileNameFromRegistry(
UINT CodePage,
LPWSTR pResultBuf,
UINT Size)
{
// Working things.
WCHAR pTmpBuf[MAX_SMALL_BUF_LEN]; // temp buffer
PKEY_VALUE_FULL_INFORMATION pKeyValueFull; // ptr to query info
BYTE pStatic[MAX_KEY_VALUE_FULLINFO]; // ptr to static buffer
//
// Convert value to unicode string.
//
if (!NT_SUCCESS(NlsConvertIntegerToString( CodePage,
10,
0,
pTmpBuf,
MAX_SMALL_BUF_LEN )))
{
// Didn't work. (Don't bother closing key though, its used globally)
return (FALSE);
}
// Open hCodePageKey, return false if it fails
OPEN_CODEPAGE_KEY(FALSE);
//
// Query the registry value for that code page.
//
pKeyValueFull = (PKEY_VALUE_FULL_INFORMATION)pStatic;
if ( NO_ERROR != QueryRegValue( hCodePageKey,
pTmpBuf,
&pKeyValueFull,
MAX_KEY_VALUE_FULLINFO,
NULL ) )
{
// Didn't work. (Don't bother closing key though, its used globally)
return (FALSE);
}
//
// Make sure there is data with this value.
//
if (GET_VALUE_DATA_PTR(pKeyValueFull)[0] == 0)
{
// Nope, no file name for this code page. (Not installed).
return (FALSE);
}
// It worked, see if that's all they wanted.
if (!pResultBuf || Size == 0)
{
// Caller didn't want the name, just to know if it was there
return (TRUE);
}
// Now we have to copy the name to their buffer for them.
NlsStrCpyW(pResultBuf, GET_VALUE_DATA_PTR(pKeyValueFull));
// Yea, it worked
return (TRUE);
}
////////////////////////////////////////////////////////////////////////////
//
// GetUserInfoFromRegistry
//
// Gets the information from the registry for the given value entry.
//
// 06-11-98 JulieB Created.
////////////////////////////////////////////////////////////////////////////
BOOL GetUserInfoFromRegistry(
LPWSTR pValue,
LPWSTR pOutput,
LCID Locale)
{
PKEY_VALUE_FULL_INFORMATION pKeyValueFull; // ptr to query info
BYTE pStatic[MAX_KEY_VALUE_FULLINFO]; // ptr to static buffer
HANDLE hKey = NULL; // handle to intl key
ULONG rc = 0L; // return code
//
// Open the Control Panel International registry key.
//
OPEN_CPANEL_INTL_KEY(hKey, FALSE, KEY_READ);
//
// Initialize the output string.
//
*pOutput = 0;
pKeyValueFull = (PKEY_VALUE_FULL_INFORMATION)pStatic;
//
// Check to be sure the current user is running in the given locale.
//
if (Locale)
{
if (NO_ERROR == QueryRegValue( hKey,
L"Locale",
&pKeyValueFull,
MAX_KEY_VALUE_FULLINFO,
NULL ))
{
UINT uiLocale;
if (NlsConvertStringToIntegerW(GET_VALUE_DATA_PTR(pKeyValueFull), 16, -1, &uiLocale) &&
uiLocale != Locale)
{
CLOSE_REG_KEY(hKey);
return FALSE;
}
}
}
//
// Query the registry value.
//
rc = QueryRegValue( hKey,
pValue,
&pKeyValueFull,
MAX_KEY_VALUE_FULLINFO,
NULL );
//
// Close the registry key.
//
CLOSE_REG_KEY(hKey);
//
// If the query failed or if the output buffer is not large enough,
// then return failure.
//
if ((rc != NO_ERROR) ||
(pKeyValueFull->DataLength > (MAX_REG_VAL_SIZE * sizeof(WCHAR))))
{
return (FALSE);
}
//
// Save the string in pOutput.
//
NlsStrCpyW(pOutput, GET_VALUE_DATA_PTR(pKeyValueFull));
//
// Return success.
//
return (TRUE);
}
////////////////////////////////////////////////////////////////////////////
//
// GetUserInfo
//
// Gets the information from the registry for the given locale and user
// value entry.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
BOOL GetUserInfo(
LCID Locale,
LCTYPE LCType,
SIZE_T CacheOffset,
LPWSTR pValue,
LPWSTR pOutput,
size_t cchOutput,
BOOL fCheckNull)
{
LCID UserLocale;
HRESULT hr; // return val for string copy
//
// Check if the current thread/process is impersonating
// or running in the context of a user other than the
// interactive one.
//
if (NT_SUCCESS( NlsGetCurrentUserNlsInfo( Locale,
LCType,
pValue,
pOutput,
FALSE )))
{
//
// See if we need to check for a null string.
//
if ((fCheckNull) && (*pOutput == 0))
{
return (FALSE);
}
return (TRUE);
}
//
// Running in the same security context as the logged-on user.
//
// Go to server side (csrss.exe) by calling CsrBasepNlsGetUserInfo(). The server side will enter a critical section to
// protect the cache reading, and Copy the data to the output buffer.
// NOTENOTE: CsrBasepNlsGetUserInfo takes the buffer size in BYTE, so
// we have to multiply cchOutput by sizeof(WCHAR)
if (!NT_SUCCESS(CsrBasepNlsGetUserInfo(Locale, CacheOffset, pOutput, cchOutput * sizeof(WCHAR))))
{
//
// Make sure the cache is valid.
//
// Also, check for an invalid entry. An invalid entry is marked
// with NLS_INVALID_INFO_CHAR in the first position of the string
// array.
//
//
// The cache is invalid, so try getting the information directly
// from the registry.
//
if (GetUserInfoFromRegistry(pValue, pOutput, Locale) == FALSE)
{
return (FALSE);
}
}
//
// See if we need to check for a null string.
//
if ((fCheckNull) && (*pOutput == 0))
{
return (FALSE);
}
//
// Return success.
//
return (TRUE);
}
////////////////////////////////////////////////////////////////////////////
//
// GetPreComposedChar
//
// Gets the precomposed character form of a given base character and
// nonspacing character. If there is no precomposed form for the given
// character, it returns 0.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
WCHAR FASTCALL GetPreComposedChar(
WCHAR wcNonSp,
WCHAR wcBase)
{
PCOMP_INFO pComp; // ptr to composite information
WORD BSOff = 0; // offset of base char in grid
WORD NSOff = 0; // offset of nonspace char in grid
int Index; // index into grid
//
// Store the ptr to the composite information. No need to check if
// it's a NULL pointer since all tables in the Unicode file are
// constructed during initialization.
//
pComp = pTblPtrs->pComposite;
//
// Traverse 8:4:4 table for Base character offset.
//
BSOff = TRAVERSE_844_W(pComp->pBase, wcBase);
if (!BSOff)
{
return (0);
}
//
// Traverse 8:4:4 table for NonSpace character offset.
//
NSOff = TRAVERSE_844_W(pComp->pNonSp, wcNonSp);
if (!NSOff)
{
return (0);
}
//
// Get wide character value out of 2D grid.
// If there is no precomposed character at the location in the
// grid, it will return 0.
//
Index = (BSOff - 1) * pComp->NumNonSp + (NSOff - 1);
return ((pComp->pGrid)[Index]);
}
////////////////////////////////////////////////////////////////////////////
//
// GetCompositeChars
//
// Gets the composite characters of a given wide character. If the
// composite form is found, it returns TRUE. Otherwise, it returns
// FALSE.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
BOOL FASTCALL GetCompositeChars(
WCHAR wch,
WCHAR *pNonSp,
WCHAR *pBase)
{
PPRECOMP pPreComp; // ptr to precomposed information
//
// Store the ptr to the precomposed information. No need to check if
// it's a NULL pointer since all tables in the Unicode file are
// constructed during initialization.
//
pPreComp = pTblPtrs->pPreComposed;
//
// Traverse 8:4:4 table for base and nonspace character translation.
//
TRAVERSE_844_D(pPreComp, wch, *pNonSp, *pBase);
//
// Return success if found. Otherwise, error.
//
return ((*pNonSp) && (*pBase));
}
////////////////////////////////////////////////////////////////////////////
//
// InsertPreComposedForm
//
// Gets the precomposed form of a given wide character string, places it in
// the given wide character, and returns the number of composite characters
// used to form the precomposed form. If there is no precomposed form for
// the given character, nothing is written into pPreComp and it returns 1
// for the number of characters used.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
int FASTCALL InsertPreComposedForm(
LPCWSTR pWCStr,
LPWSTR pEndWCStr,
LPWSTR pPreComp)
{
WCHAR wch; // precomposed character
LPWSTR pPos; // ptr to position in string
//
// If no precomposed form can be found, return 1 character used
// (base character).
//
if (((pWCStr + 1) >= pEndWCStr) ||
(!(wch = GetPreComposedChar(*(pWCStr + 1), *pWCStr))))
{
return (1);
}
//
// Get the precomposed character from the given wide character string.
// Must check for multiple nonspacing characters for the same
// precomposed character.
//
*pPreComp = wch;
pPos = (LPWSTR)pWCStr + 2;
while ((pPos < pEndWCStr) &&
(wch = GetPreComposedChar(*pPos, *pPreComp)))
{
*pPreComp = wch;
pPos++;
}
//
// Return the number of characters used to form the precomposed
// character.
//
return ((int)(pPos - (LPWSTR)pWCStr));
}
////////////////////////////////////////////////////////////////////////////
//
// InsertFullWidthPreComposedForm
//
// Gets the full width precomposed form of a given wide character string,
// places it in the given wide character, and returns the number of
// composite characters used to form the precomposed form. If there is
// no precomposed form for the given character, only the full width conversion
// of the first code point is written into pPreComp and it returns 1 for
// the number of characters used.
//
// 11-04-93 JulieB Created.
////////////////////////////////////////////////////////////////////////////
int FASTCALL InsertFullWidthPreComposedForm(
LPCWSTR pWCStr,
LPWSTR pEndWCStr,
LPWSTR pPreComp,
PCASE pCase)
{
WCHAR wch; // nonspace character
LPWSTR pPos; // ptr to position in string
//
// Get the case (if necessary).
//
*pPreComp = (pCase) ? GET_LOWER_UPPER_CASE(pCase, *pWCStr) : *pWCStr;
//
// Get the full width.
//
*pPreComp = GET_FULL_WIDTH(pTblPtrs->pFullWidth, *pPreComp);
if ((pPos = ((LPWSTR)pWCStr + 1)) >= pEndWCStr)
{
return (1);
}
while (pPos < pEndWCStr)
{
wch = (pCase) ? GET_LOWER_UPPER_CASE(pCase, *pPos) : *pPos;
wch = GET_FULL_WIDTH(pTblPtrs->pFullWidth, wch);
if (wch = GetPreComposedChar(wch, *pPreComp))
{
*pPreComp = wch;
pPos++;
}
else
{
break;
}
}
//
// Return the number of characters used to form the precomposed
// character.
//
return ((int)(pPos - (LPWSTR)pWCStr));
}
////////////////////////////////////////////////////////////////////////////
//
// InsertCompositeForm
//
// Gets the composite form of a given wide character, places it in the
// wide character string, and returns the number of characters written.
// If there is no composite form for the given character, the wide character
// string is not touched. It will return 1 for the number of characters
// written, since the base character was already written.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
int FASTCALL InsertCompositeForm(
LPWSTR pWCStr,
LPWSTR pEndWCStr)
{
WCHAR Base; // base character
WCHAR NonSp; // non space character
int wcCount = 0; // number of wide characters written
LPWSTR pEndComp; // ptr to end of composite form
int ctr; // loop counter
//
// If no composite form can be found, return 1 for the base
// character that was already written.
//
if (!GetCompositeChars(*pWCStr, &NonSp, &Base))
{
return (1);
}
//
// Get the composite characters and write them to the pWCStr
// buffer. Must check for multiple breakdowns of the precomposed
// character into more than 2 characters (multiple nonspacing
// characters).
//
pEndComp = pWCStr;
do
{
//
// Make sure pWCStr is big enough to hold the nonspacing
// character.
//
if (pEndComp < (pEndWCStr - 1))
{
//
// Addition of next breakdown of nonspacing characters
// are to be added right after the base character. So,
// move all nonspacing characters ahead one position
// to make room for the next nonspacing character.
//
pEndComp++;
for (ctr = 0; ctr < wcCount; ctr++)
{
*(pEndComp - ctr) = *(pEndComp - (ctr + 1));
}
//
// Fill in the new base form and the new nonspacing character.
//
*pWCStr = Base;
*(pWCStr + 1) = NonSp;
wcCount++;
}
else
{
//
// Make sure we don't get into an infinite loop if the
// destination buffer isn't large enough.
//
break;
}
} while (GetCompositeChars(*pWCStr, &NonSp, &Base));
//
// Return number of wide characters written. Add 1 to include the
// base character.
//
return (wcCount + 1);
}
////////////////////////////////////////////////////////////////////////////
//
// NlsConvertIntegerToString
//
// This routine converts an integer to a Unicode string.
//
// 11-15-96 JulieB Created.
////////////////////////////////////////////////////////////////////////////
ULONG NlsConvertIntegerToString(
UINT Value,
UINT Base,
UINT Padding,
LPWSTR pResultBuf,
UINT Size)
{
UNICODE_STRING ObString; // value string
UINT ctr; // loop counter
LPWSTR pBufPtr; // ptr to result buffer
WCHAR pTmpBuf[MAX_PATH_LEN]; // ptr to temp buffer
ULONG rc = 0L; // return code
//
// Set up the Unicode string structure.
//
ObString.Length = (USHORT)(Size * sizeof(WCHAR));
ObString.MaximumLength = (USHORT)(Size * sizeof(WCHAR));
ObString.Buffer = pTmpBuf;
//
// Get the value as a string.
//
if (rc = RtlIntegerToUnicodeString(Value, Base, &ObString))
{
return (rc);
}
//
// Pad the string with the appropriate number of zeros.
//
pBufPtr = pResultBuf;
for (ctr = GET_WC_COUNT(ObString.Length);
ctr < Padding;
ctr++, pBufPtr++)
{
*pBufPtr = NLS_CHAR_ZERO;
}
NlsStrCpyW(pBufPtr, ObString.Buffer);
//
// Return success.
//
return (NO_ERROR);
}
////////////////////////////////////////////////////////////////////////////
//
// NlsConvertIntegerToHexStringW
// Convert an integer value to an Unicode null-terminated string WITH
// leading zeros. E.g. 0x409 with Width 5 will be converted to L"0409".
// This function is faster than NlsConvertIntegerToString(), but it
// only supports hex numbers.
//
// Parameters:
// Value The number to be converted.
// UpperCase If TRUE, the hex digit will be uppercase.
// Str The buffer for the converted Unicode string.
// Width The character count of the buffer. The value should be the total
// heximal digit number plus one for null-terminiated.
// E.g. if the value is from 0x0000 - 0xffff, the Width should be 5.
//
// Return:
// TRUE if successful. FALSE if the width is not big enough to hold the converted string.
//
////////////////////////////////////////////////////////////////////////////
BOOL FASTCALL NlsConvertIntegerToHexStringW(UINT Value, BOOL UpperCase, PWSTR Str, UINT CharCount)
{
int Digit;
PWSTR p;
if(Str == NULL)
{
return (FALSE);
}
p = Str + CharCount - 1;
*p-- = L'\0';
while (p >= Str)
{
Digit = Value & 0xf;
if (Digit < 10)
{
Digit = Digit + L'0';
}
else
{
Digit = Digit - 10 + (UpperCase ? L'A' : L'a');
}
*p-- = (WCHAR)Digit;
Value >>= 4;
}
if (Value > 0)
{
//
// There are still digit remaining.
//
return (FALSE);
}
return (TRUE);
}
////////////////////////////////////////////////////////////////////////////
//
// NlsConvertStringToIntegerW
//
// Parameters:
// Str the hex string to be converted.
// Base base
// CharCount
// the character count of the string (excluding the terminiated-null, if any).
// If the value is -1, this function assumes that
// Str is a null-terminated string.
// Result the pointer to the result.
//
// Result:
// TRUE if the operation is successful. FALSE if there is non-hex
// character in the string.
//
////////////////////////////////////////////////////////////////////////////
BOOL FASTCALL NlsConvertStringToIntegerW(PWSTR Str, UINT Base, int CharCount, UINT* Result)
{
int i;
WCHAR Digit;
WCHAR c;
if (Str == NULL || Result == NULL)
{
return (FALSE);
}
*Result = 0;
if (CharCount == -1)
{
while (c = *Str)
{
c = *Str;
if (c >= L'0' && c <= L'9')
{
Digit = c - L'0';
}
else if(Base == 16)
{
if (c >= L'A' && c <= L'F')
{
Digit = c - L'A' + 10;
}
else if (c >= L'a' && c <= L'f')
{
Digit = c - L'a' + 10;
}
else
{
return (FALSE);
}
}
else
{
return (FALSE);
}
if (Base == 16)
{
*Result = (*Result << 4) | Digit;
}
else
{
*Result = *Result*10 + Digit;
}
Str++;
}
} else
{
for (i=0; i< CharCount; i++) {
c = *Str++;
if (c >= L'0' && c <= L'9')
{
Digit = c - L'0';
}
else if(Base == 16)
{
if (c >= L'A' && c <= L'F')
{
Digit = c - L'A' + 10;
}
else if (c >= L'a' && c <= L'f')
{
Digit = c - L'a' + 10;
}
else
{
return (FALSE);
}
}
else
{
return (FALSE);
}
if (Base == 16)
{
*Result = (*Result << 4) | Digit;
}
else
{
*Result = *Result*10 + Digit;
}
}
}
return (TRUE);
}
////////////////////////////////////////////////////////////////////////////
//
// NlsStrCpyW
//
// This routine copies the source wide character string to the destination
// wide character string buffer.
//
// NOTE: This routine is here to avoid any dependencies on other DLLs
// during initialization.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
LPWSTR FASTCALL NlsStrCpyW(
LPWSTR pwszDest,
LPCWSTR pwszSrc)
{
LPWSTR pwszRet = pwszDest; // ptr to beginning of string
loop:
if (!(pwszDest[0x0] = pwszSrc[0x0])) goto done;
if (!(pwszDest[0x1] = pwszSrc[0x1])) goto done;
if (!(pwszDest[0x2] = pwszSrc[0x2])) goto done;
if (!(pwszDest[0x3] = pwszSrc[0x3])) goto done;
if (!(pwszDest[0x4] = pwszSrc[0x4])) goto done;
if (!(pwszDest[0x5] = pwszSrc[0x5])) goto done;
if (!(pwszDest[0x6] = pwszSrc[0x6])) goto done;
if (!(pwszDest[0x7] = pwszSrc[0x7])) goto done;
if (!(pwszDest[0x8] = pwszSrc[0x8])) goto done;
if (!(pwszDest[0x9] = pwszSrc[0x9])) goto done;
if (!(pwszDest[0xA] = pwszSrc[0xA])) goto done;
if (!(pwszDest[0xB] = pwszSrc[0xB])) goto done;
if (!(pwszDest[0xC] = pwszSrc[0xC])) goto done;
if (!(pwszDest[0xD] = pwszSrc[0xD])) goto done;
if (!(pwszDest[0xE] = pwszSrc[0xE])) goto done;
if (!(pwszDest[0xF] = pwszSrc[0xF])) goto done;
pwszDest+= 0x10;
pwszSrc+= 0x10;
goto loop;
done:
return (pwszRet);
}
////////////////////////////////////////////////////////////////////////////
//
// NlsStrCatW
//
// This routine attaches the second string to the first string.
//
// NOTE: This routine is here to avoid any dependencies on other DLLs
// during initialization.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
LPWSTR FASTCALL NlsStrCatW(
LPWSTR pwsz1,
LPCWSTR pwsz2)
{
LPWSTR pwszRet = pwsz1; // ptr to beginning of string
strlen_loop:
if (*pwsz1) pwsz1++; else goto cat_loop;
if (*pwsz1) pwsz1++; else goto cat_loop;
if (*pwsz1) pwsz1++; else goto cat_loop;
if (*pwsz1) pwsz1++; else goto cat_loop;
if (*pwsz1) pwsz1++; else goto cat_loop;
if (*pwsz1) pwsz1++; else goto cat_loop;
if (*pwsz1) pwsz1++; else goto cat_loop;
if (*pwsz1) pwsz1++; else goto cat_loop;
if (*pwsz1) pwsz1++; else goto cat_loop;
if (*pwsz1) pwsz1++; else goto cat_loop;
if (*pwsz1) pwsz1++; else goto cat_loop;
if (*pwsz1) pwsz1++; else goto cat_loop;
if (*pwsz1) pwsz1++; else goto cat_loop;
if (*pwsz1) pwsz1++; else goto cat_loop;
if (*pwsz1) pwsz1++; else goto cat_loop;
if (*pwsz1) pwsz1++; else goto cat_loop;
goto strlen_loop;
cat_loop:
if (!(pwsz1[0x00] = pwsz2[0x00])) goto done;
if (!(pwsz1[0x01] = pwsz2[0x01])) goto done;
if (!(pwsz1[0x02] = pwsz2[0x02])) goto done;
if (!(pwsz1[0x03] = pwsz2[0x03])) goto done;
if (!(pwsz1[0x04] = pwsz2[0x04])) goto done;
if (!(pwsz1[0x05] = pwsz2[0x05])) goto done;
if (!(pwsz1[0x06] = pwsz2[0x06])) goto done;
if (!(pwsz1[0x07] = pwsz2[0x07])) goto done;
if (!(pwsz1[0x08] = pwsz2[0x08])) goto done;
if (!(pwsz1[0x09] = pwsz2[0x09])) goto done;
if (!(pwsz1[0x0A] = pwsz2[0x0A])) goto done;
if (!(pwsz1[0x0B] = pwsz2[0x0B])) goto done;
if (!(pwsz1[0x0C] = pwsz2[0x0C])) goto done;
if (!(pwsz1[0x0D] = pwsz2[0x0D])) goto done;
if (!(pwsz1[0x0E] = pwsz2[0x0E])) goto done;
if (!(pwsz1[0x0F] = pwsz2[0x0F])) goto done;
pwsz1 += 0x10;
pwsz2 += 0x10;
goto cat_loop;
done:
return (pwszRet);
}
////////////////////////////////////////////////////////////////////////////
//
// NlsStrLenW
//
// This routine returns the length of the given wide character string.
// The length does NOT include the null terminator.
//
// NOTE: This routine is here to avoid any dependencies on other DLLs
// during initialization.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
int FASTCALL NlsStrLenW(
LPCWSTR pwsz)
{
LPCWSTR pwszStart = pwsz; // ptr to beginning of string
loop:
if (*pwsz) pwsz++; else goto done;
if (*pwsz) pwsz++; else goto done;
if (*pwsz) pwsz++; else goto done;
if (*pwsz) pwsz++; else goto done;
if (*pwsz) pwsz++; else goto done;
if (*pwsz) pwsz++; else goto done;
if (*pwsz) pwsz++; else goto done;
if (*pwsz) pwsz++; else goto done;
if (*pwsz) pwsz++; else goto done;
if (*pwsz) pwsz++; else goto done;
if (*pwsz) pwsz++; else goto done;
if (*pwsz) pwsz++; else goto done;
if (*pwsz) pwsz++; else goto done;
if (*pwsz) pwsz++; else goto done;
if (*pwsz) pwsz++; else goto done;
if (*pwsz) pwsz++; else goto done;
goto loop;
done:
return ((int)(pwsz - pwszStart));
}
////////////////////////////////////////////////////////////////////////////
//
// NlsStrNCatW
//
// This routine concatenates two wide character strings for the count of
// characters given. It copies "Count" characters from the back string to
// the end of the "front" string.
//
// NOTE: This routine is here to avoid any dependencies on other DLLs
// during initialization.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
LPWSTR FASTCALL NlsStrNCatW(
LPWSTR pwszFront,
LPCWSTR pwszBack,
int Count)
{
LPWSTR pwszStart = pwszFront; // ptr to beginning of string
strlen_loop:
if (*pwszFront) pwszFront++; goto cat_loop;
if (*pwszFront) pwszFront++; goto cat_loop;
if (*pwszFront) pwszFront++; goto cat_loop;
if (*pwszFront) pwszFront++; goto cat_loop;
if (*pwszFront) pwszFront++; goto cat_loop;
if (*pwszFront) pwszFront++; goto cat_loop;
if (*pwszFront) pwszFront++; goto cat_loop;
if (*pwszFront) pwszFront++; goto cat_loop;
goto strlen_loop;
cat_loop:
if (Count == 0 || !(*pwszFront = *pwszBack)) goto done;
pwszFront++; pwszBack++; Count--;
if (Count == 0 || !(*pwszFront = *pwszBack)) goto done;
pwszFront++; pwszBack++; Count--;
if (Count == 0 || !(*pwszFront = *pwszBack)) goto done;
pwszFront++; pwszBack++; Count--;
if (Count == 0 || !(*pwszFront = *pwszBack)) goto done;
pwszFront++; pwszBack++; Count--;
if (Count == 0 || !(*pwszFront = *pwszBack)) goto done;
pwszFront++; pwszBack++; Count--;
if (Count == 0 || !(*pwszFront = *pwszBack)) goto done;
pwszFront++; pwszBack++; Count--;
if (Count == 0 || !(*pwszFront = *pwszBack)) goto done;
pwszFront++; pwszBack++; Count--;
if (Count == 0 || !(*pwszFront = *pwszBack)) goto done;
pwszFront++; pwszBack++; Count--;
goto cat_loop;
done:
*pwszFront = (WCHAR)0;
return (pwszStart);
}
////////////////////////////////////////////////////////////////////////////
//
// NlsStrEqualW
//
// This routine compares two strings to see if they are exactly identical.
// It returns 1 if they are identical, 0 if they are different.
//
// NOTE: This routine is here to avoid any dependencies on other DLLs
// during initialization.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
int FASTCALL NlsStrEqualW(
LPCWSTR pwszFirst,
LPCWSTR pwszSecond)
{
loop:
if (*pwszFirst != *pwszSecond) goto error;
if (!*pwszFirst) return (1);
pwszFirst++;
pwszSecond++;
if (*pwszFirst != *pwszSecond) goto error;
if (!*pwszFirst) return (1);
pwszFirst++;
pwszSecond++;
if (*pwszFirst != *pwszSecond) goto error;
if (!*pwszFirst) return (1);
pwszFirst++;
pwszSecond++;
if (*pwszFirst != *pwszSecond) goto error;
if (!*pwszFirst) return (1);
pwszFirst++;
pwszSecond++;
if (*pwszFirst != *pwszSecond) goto error;
if (!*pwszFirst) return (1);
pwszFirst++;
pwszSecond++;
if (*pwszFirst != *pwszSecond) goto error;
if (!*pwszFirst) return (1);
pwszFirst++;
pwszSecond++;
if (*pwszFirst != *pwszSecond) goto error;
if (!*pwszFirst) return (1);
pwszFirst++;
pwszSecond++;
if (*pwszFirst != *pwszSecond) goto error;
if (!*pwszFirst) return (1);
pwszFirst++;
pwszSecond++;
goto loop;
error:
//
// Return error.
//
return (0);
}
////////////////////////////////////////////////////////////////////////////
//
// NlsStrNEqualW
//
// This routine compares two strings to see if they are exactly identical
// for the count of characters given.
// It returns 1 if they are identical, 0 if they are different.
//
// NOTE: This routine is here to avoid any dependencies on other DLLs
// during initialization.
//
// 05-31-91 JulieB Created.
////////////////////////////////////////////////////////////////////////////
int FASTCALL NlsStrNEqualW(
LPCWSTR pwszFirst,
LPCWSTR pwszSecond,
int Count)
{
loop:
if (Count == 0) return (1);
if (*pwszFirst != *pwszSecond) goto error;
if (!*pwszFirst) return (1);
pwszFirst++;
pwszSecond++;
Count--;
if (Count == 0) return (1);
if (*pwszFirst != *pwszSecond) goto error;
if (!*pwszFirst) return (1);
pwszFirst++;
pwszSecond++;
Count--;
if (Count == 0) return (1);
if (*pwszFirst != *pwszSecond) goto error;
if (!*pwszFirst) return (1);
pwszFirst++;
pwszSecond++;
Count--;
if (Count == 0) return (1);
if (*pwszFirst != *pwszSecond) goto error;
if (!*pwszFirst) return (1);
pwszFirst++;
pwszSecond++;
Count--;
if (Count == 0) return (1);
if (*pwszFirst != *pwszSecond) goto error;
if (!*pwszFirst) return (1);
pwszFirst++;
pwszSecond++;
Count--;
if (Count == 0) return (1);
if (*pwszFirst != *pwszSecond) goto error;
if (!*pwszFirst) return (1);
pwszFirst++;
pwszSecond++;
Count--;
if (Count == 0) return (1);
if (*pwszFirst != *pwszSecond) goto error;
if (!*pwszFirst) return (1);
pwszFirst++;
pwszSecond++;
Count--;
if (Count == 0) return (1);
if (*pwszFirst != *pwszSecond) goto error;
if (!*pwszFirst) return (1);
pwszFirst++;
pwszSecond++;
Count--;
goto loop;
error:
//
// Return error.
//
return (0);
}
////////////////////////////////////////////////////////////////////////////
//
// GetDefaultSortkeySize
//
////////////////////////////////////////////////////////////////////////////
ULONG GetDefaultSortkeySize(
PLARGE_INTEGER pSize)
{
*pSize = pTblPtrs->DefaultSortkeySize;
return (STATUS_SUCCESS);
}
////////////////////////////////////////////////////////////////////////////
//
// GetLinguistLangSize
//
////////////////////////////////////////////////////////////////////////////
ULONG GetLinguistLangSize(
PLARGE_INTEGER pSize)
{
*pSize = pTblPtrs->LinguistLangSize;
return (STATUS_SUCCESS);
}
////////////////////////////////////////////////////////////////////////////
//
// ValidateLocale
//
// Internal routine, called from server. Validates that a locale is
// present in the registry. This code comes from IsValidLocale, but
// does not check the internal data to prevent recursive calls to the
// server.
//
////////////////////////////////////////////////////////////////////////////
BOOL ValidateLocale(
LCID Locale)
{
PKEY_VALUE_FULL_INFORMATION pKeyValueFull;
BYTE pStatic1[MAX_KEY_VALUE_FULLINFO];
BYTE pStatic2[MAX_KEY_VALUE_FULLINFO];
WCHAR pTmpBuf[MAX_PATH]; // temp buffer
UNICODE_STRING ObUnicodeStr; // registry data value string
DWORD Data; // registry data value
LPWSTR pData; // ptr to registry data
BOOL bResult = FALSE; // result value
//
// Invalid Locale Check.
//
if (IS_INVALID_LOCALE(Locale))
{
return (FALSE);
}
//
// Open the Locale, the Alternate Sorts, and the Language Groups
// registry keys.
//
OPEN_LOCALE_KEY(FALSE);
OPEN_ALT_SORTS_KEY(FALSE);
OPEN_LANG_GROUPS_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)pStatic1;
if (((QueryRegValue( hLocaleKey,
pTmpBuf,
&pKeyValueFull,
MAX_KEY_VALUE_FULLINFO,
NULL ) == NO_ERROR) ||
(QueryRegValue( hAltSortsKey,
pTmpBuf,
&pKeyValueFull,
MAX_KEY_VALUE_FULLINFO,
NULL ) == NO_ERROR)) &&
(pKeyValueFull->DataLength > 2))
{
RtlInitUnicodeString(&ObUnicodeStr, GET_VALUE_DATA_PTR(pKeyValueFull));
if ((RtlUnicodeStringToInteger(&ObUnicodeStr, 16, &Data) == NO_ERROR) &&
(Data != 0))
{
pKeyValueFull = (PKEY_VALUE_FULL_INFORMATION)pStatic2;
if ((QueryRegValue( hLangGroupsKey,
ObUnicodeStr.Buffer,
&pKeyValueFull,
MAX_KEY_VALUE_FULLINFO,
NULL ) == NO_ERROR) &&
(pKeyValueFull->DataLength > 2))
{
pData = GET_VALUE_DATA_PTR(pKeyValueFull);
if ((pData[0] == L'1') && (pData[1] == 0))
{
bResult = TRUE;
}
}
}
}
//
// Return the result.
//
return (TRUE);
}
////////////////////////////////////////////////////////////////////////////
//
// ValidateLCType
//
// This routine is called from the server (and also from locale.c) in
// order to get a Registry key name and a field pointer in the NlsInfo
// structure given an LCType.
//
////////////////////////////////////////////////////////////////////////////
BOOL ValidateLCType(
PNLS_USER_INFO pInfo,
LCTYPE LCType,
LPWSTR *ppwReg,
LPWSTR *ppwCache)
{
switch (LCType)
{
case ( LOCALE_IFIRSTWEEKOFYEAR ) :
{
*ppwReg = NLS_VALUE_IFIRSTWEEKOFYEAR;
*ppwCache = pInfo->iFirstWeek;
break;
}
case ( LOCALE_IFIRSTDAYOFWEEK ) :
{
*ppwReg = NLS_VALUE_IFIRSTDAYOFWEEK;
*ppwCache = pInfo->iFirstDay;
break;
}
case ( LOCALE_ICALENDARTYPE ) :
{
*ppwReg = NLS_VALUE_ICALENDARTYPE;
*ppwCache = pInfo->iCalType;
break;
}
case ( LOCALE_SLONGDATE ) :
{
*ppwReg = NLS_VALUE_SLONGDATE;
*ppwCache = pInfo->sLongDate;
break;
}
case ( LOCALE_SYEARMONTH ) :
{
*ppwReg = NLS_VALUE_SYEARMONTH;
*ppwCache = pInfo->sYearMonth;
break;
}
case ( LOCALE_S1159 ) :
{
*ppwReg = NLS_VALUE_S1159;
*ppwCache = pInfo->s1159;
break;
}
case ( LOCALE_SNEGATIVESIGN ) :
{
*ppwReg = NLS_VALUE_SNEGATIVESIGN;
*ppwCache = pInfo->sNegSign;
break;
}
case ( LOCALE_SPOSITIVESIGN ) :
{
*ppwReg = NLS_VALUE_SPOSITIVESIGN;
*ppwCache = pInfo->sPosSign;
break;
}
case ( LOCALE_INEGCURR ) :
{
*ppwReg = NLS_VALUE_INEGCURR;
*ppwCache = pInfo->iNegCurr;
break;
}
case ( LOCALE_ICURRENCY ) :
{
*ppwReg = NLS_VALUE_ICURRENCY;
*ppwCache = pInfo->iCurrency;
break;
}
case ( LOCALE_ICURRDIGITS ) :
{
*ppwReg = NLS_VALUE_ICURRDIGITS;
*ppwCache = pInfo->iCurrDigits;
break;
}
case ( LOCALE_SMONGROUPING ) :
{
*ppwReg = NLS_VALUE_SMONGROUPING;
*ppwCache = pInfo->sMonGrouping;
break;
}
case ( LOCALE_SMONTHOUSANDSEP ) :
{
*ppwReg = NLS_VALUE_SMONTHOUSANDSEP;
*ppwCache = pInfo->sMonThouSep;
break;
}
case ( LOCALE_SMONDECIMALSEP ) :
{
*ppwReg = NLS_VALUE_SMONDECIMALSEP;
*ppwCache = pInfo->sMonDecSep;
break;
}
case ( LOCALE_SCURRENCY ) :
{
*ppwReg = NLS_VALUE_SCURRENCY;
*ppwCache = pInfo->sCurrency;
break;
}
case ( LOCALE_IDIGITSUBSTITUTION ) :
{
*ppwReg = NLS_VALUE_IDIGITSUBST;
*ppwCache = pInfo->iDigitSubstitution;
break;
}
case ( LOCALE_SNATIVEDIGITS ) :
{
*ppwReg = NLS_VALUE_SNATIVEDIGITS;
*ppwCache = pInfo->sNativeDigits;
break;
}
case ( LOCALE_INEGNUMBER ) :
{
*ppwReg = NLS_VALUE_INEGNUMBER;
*ppwCache = pInfo->iNegNumber;
break;
}
case ( LOCALE_ILZERO ) :
{
*ppwReg = NLS_VALUE_ILZERO;
*ppwCache = pInfo->iLZero;
break;
}
case ( LOCALE_IDIGITS ) :
{
*ppwReg = NLS_VALUE_IDIGITS;
*ppwCache = pInfo->iDigits;
break;
}
case ( LOCALE_SGROUPING ) :
{
*ppwReg = NLS_VALUE_SGROUPING;
*ppwCache = pInfo->sGrouping;
break;
}
case ( LOCALE_STHOUSAND ) :
{
*ppwReg = NLS_VALUE_STHOUSAND;
*ppwCache = pInfo->sThousand;
break;
}
case ( LOCALE_SDECIMAL ) :
{
*ppwReg = NLS_VALUE_SDECIMAL;
*ppwCache = pInfo->sDecimal;
break;
}
case ( LOCALE_IPAPERSIZE ) :
{
*ppwReg = NLS_VALUE_IPAPERSIZE;
*ppwCache = pInfo->iPaperSize;
break;
}
case ( LOCALE_IMEASURE ) :
{
*ppwReg = NLS_VALUE_IMEASURE;
*ppwCache = pInfo->iMeasure;
break;
}
case ( LOCALE_SLIST ) :
{
*ppwReg = NLS_VALUE_SLIST;
*ppwCache = pInfo->sList;
break;
}
case ( LOCALE_S2359 ) :
{
*ppwReg = NLS_VALUE_S2359;
*ppwCache = pInfo->s2359;
break;
}
default :
{
return (FALSE);
}
}
return (TRUE);
}
////////////////////////////////////////////////////////////////////////////
//
// GetStringTableEntry
//
// Returns the localized version of the strings for the given resource
// id. It gets the information from the resource file in the language that
// the current user is using.
//
// The string table contains a series of strings in the following order:
// Language Name
// Country Name
// Language Group Name
// Code Page Name (decimal values converted to hex values)
// Region (Geo) Friendly Name (decimal values converted to hex values)
// Region (Geo) Official Name (decimal values converted to hex values)
// Sorting Names (in order starting with 0, separated by $)
//
// Each string is separated by $. The final string is terminated with
// a null.
//
// The sorting names are in order of the sort ids, starting with 0.
//
// For example,
// "Language$Country$LangGrp$CodePage$Geo1$Geo2$Sort0$Sort1" or
// "Language$Country" or
// "$$LangGrp$CodePage" or
// "$$$CodePage" or
// "$$$$Geo1$Geo2"
//
// 11-17-00 JulieB Created.
////////////////////////////////////////////////////////////////////////////
int GetStringTableEntry(
UINT ResourceID,
LANGID UILangId,
LPWSTR pBuffer,
int cchBuffer,
int WhichString)
{
HANDLE hFindRes; // handle from find resource
HANDLE hLoadRes; // handle from load resource
LPWSTR pSearch, pSearchEnd; // ptrs to search for correct string
LPWSTR pString; // ptr to final string
int cchCount = 0; // count of characters
//
// Make sure the buffer is ok.
//
if ((pBuffer == NULL) || (cchBuffer == 0))
{
return (0);
}
//
// Make sure we're not hitting the GEO ID that is out of bounds.
//
// !!! NOTE !!! This is needed because the East Timor Geo Id
// is out of bounds and wraps to 0x60e7.
//
if (ResourceID == 0x60e7)
{
return (0);
}
//
// Set the UI Language Id.
//
if (UILangId == 0)
{
UILangId = GetUserDefaultUILanguage();
}
//
// String Tables are broken up into 16 string segments. Find the
// resource containing the string we want.
//
if ((!(hFindRes = FindResourceExW( hModule,
RT_STRING,
(LPWSTR)UlongToPtr((ULONG)(((USHORT)ResourceID >> 4) + 1)),
(WORD)UILangId ))))
{
//
// Could not find resource. Try NEUTRAL language id.
//
if ((!(hFindRes = FindResourceExW( hModule,
RT_STRING,
(LPWSTR)UlongToPtr((ULONG)(((USHORT)ResourceID >> 4) + 1)),
(WORD)0 ))))
{
//
// Could not find resource. Return 0.
//
return (0);
}
}
//
// Load the resource.
//
if (hLoadRes = LoadResource(hModule, hFindRes))
{
//
// Lock the resource. Store the found pointer in the given
// pointer.
//
if (pSearch = (LPWSTR)LockResource(hLoadRes))
{
//
// Move past the other strings in this segment.
// (16 strings in a segment -> & 0x0F)
//
ResourceID &= 0x0F;
//
// Find the correct string in this segment.
//
while (TRUE)
{
cchCount = *((WORD *)pSearch++);
if (ResourceID-- == 0)
{
break;
}
pSearch += cchCount;
}
//
// Mark the end of the resource string since it is not
// NULL terminated.
//
pSearchEnd = pSearch + cchCount;
//
// Get to the appropriate string.
//
while ((WhichString > 0) && (pSearch < pSearchEnd))
{
do
{
if (*pSearch == RC_STRING_SEPARATOR)
{
pSearch++;
break;
}
pSearch++;
} while (pSearch < pSearchEnd);
WhichString--;
}
//
// Count the number of characters for this string.
//
pString = pSearch;
cchCount = 0;
while ((pSearch < pSearchEnd) && (*pSearch != RC_STRING_SEPARATOR))
{
pSearch++;
cchCount++;
}
//
// See if there is anything to copy.
//
if (cchCount > 0)
{
//
// Don't copy more than the max allowed.
//
if (cchCount >= cchBuffer)
{
cchCount = cchBuffer - 1;
}
//
// Copy the string into the buffer and NULL terminate it.
//
CopyMemory(pBuffer, pString, cchCount * sizeof(WCHAR));
pBuffer[cchCount] = 0;
//
// Return the number of characters in the string, not
// including the NULL terminator.
//
return (cchCount);
}
}
}
//
// Return failure.
//
return (0);
}
////////////////////////////////////////////////////////////////////////////
//
// NlsIsDll
//
// Check if file extension is DLL
//
////////////////////////////////////////////////////////////////////////////
BOOL FASTCALL NlsIsDll(
LPCWSTR pFileName
)
{
BOOL bIsDll = FALSE;
if (pFileName)
{
int iLen = NlsStrLenW(pFileName);
//
// Check DLL extension, save the trouble of calling lstrcmp
//
if (iLen > 4)
{
pFileName += iLen-4;
if ((*pFileName++ == L'.') &&
(*pFileName == L'D' || *pFileName++ == L'd') &&
(*pFileName == L'L' || *pFileName++ == L'l') &&
(*pFileName == L'L' || *pFileName++ == L'l'))
{
bIsDll = TRUE;
}
}
}
return bIsDll;
}
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