131 lines
3.7 KiB
C
131 lines
3.7 KiB
C
/***
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*a_loc.c - A versions of GetLocaleInfo.
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*
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* Copyright (c) Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* Use either GetLocaleInfoA or GetLocaleInfoW depending on which is
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* available
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*
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*******************************************************************************/
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#include <cruntime.h>
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#include <internal.h>
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#include <stdlib.h>
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#include <awint.h>
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#include <dbgint.h>
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#include <malloc.h>
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#include <locale.h>
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#include <mtdll.h>
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#include <setlocal.h>
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/***
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*int __cdecl __crtGetLocaleInfoA - Get locale info and return it as an ASCII
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* string
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*
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*Purpose:
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* Internal support function. Assumes info in ANSI string format. Tries
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* to use NLS API call GetLocaleInfoA if available (Chicago) and uses
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* GetLocaleInfoA if it must (NT). If neither are available it fails and
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* returns 0.
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*
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*Entry:
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* LPCWSTR LocaleName - locale context for the comparison.
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* LCTYPE LCType - see NT\Chicago docs
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* LPSTR lpLCData - pointer to memory to return data
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* int cchData - char (byte) count of buffer (including NULL)
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* (if 0, lpLCData is not referenced, size needed
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* is returned)
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* int code_page - for MB/WC conversion. If 0, use __lc_codepage
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*
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*Exit:
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* Success: the number of characters copied (including NULL).
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* Failure: 0
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*
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*Exceptions:
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*
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*******************************************************************************/
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static int __cdecl __crtGetLocaleInfoA_stat(
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_locale_t plocinfo,
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const wchar_t* LocaleName,
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LCTYPE LCType,
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LPSTR lpLCData,
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int cchData
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)
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{
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int retval = 0;
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int code_page;
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int buff_size;
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wchar_t *wbuffer;
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/*
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* Use __lc_codepage for conversion
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*/
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code_page = plocinfo->locinfo->lc_codepage;
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/* find out how big buffer needs to be */
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if (0 == (buff_size = __crtGetLocaleInfoEx(LocaleName, LCType, NULL, 0)))
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return 0;
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/* allocate buffer */
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wbuffer = (wchar_t *)_calloca( buff_size, sizeof(wchar_t) );
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if ( wbuffer == NULL ) {
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return 0;
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}
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/* get the info in wide format */
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if (0 == __crtGetLocaleInfoEx(LocaleName, LCType, wbuffer, buff_size))
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goto error_cleanup;
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/* convert from Wide Char to ANSI */
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if (0 == cchData)
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{
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/* convert into local buffer */
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retval = WideCharToMultiByte( code_page,
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0,
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wbuffer,
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-1,
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NULL,
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0,
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NULL,
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NULL );
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}
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else {
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/* convert into user buffer */
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retval = WideCharToMultiByte( code_page,
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0,
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wbuffer,
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-1,
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lpLCData,
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cchData,
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NULL,
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NULL );
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}
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error_cleanup:
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_freea(wbuffer);
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return retval;
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}
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extern "C" int __cdecl __crtGetLocaleInfoA(
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_locale_t plocinfo,
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const wchar_t* LocaleName,
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LCTYPE LCType,
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LPSTR lpLCData,
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int cchData
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)
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{
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_LocaleUpdate _loc_update(plocinfo);
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return __crtGetLocaleInfoA_stat(
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_loc_update.GetLocaleT(),
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LocaleName,
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LCType,
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lpLCData,
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cchData
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);
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}
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