4coder-non-source/test_data/lots_of_files/a_str.c

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2023-09-30 01:17:40 +00:00
/***
*a_str.c - A version of GetStringType.
*
* Copyright (c) Microsoft Corporation. All rights reserved.
*
*Purpose:
* Use either GetStringTypeA or GetStringTypeW depending on which is
* unstubbed.
*
*******************************************************************************/
#include <cruntime.h>
#include <internal.h>
#include <stdlib.h>
#include <locale.h>
#include <awint.h>
#include <dbgint.h>
#include <malloc.h>
#include <awint.h>
#include <mtdll.h>
#include <setlocal.h>
/***
*int __cdecl __crtGetStringTypeA - Get type information about an ANSI string.
*
*Purpose:
* Internal support function. Assumes info in ANSI string format. Tries
* to use NLS API call GetStringTypeA if available and uses GetStringTypeW
* if it must. If neither are available it fails and returns FALSE.
*
*Entry:
* DWORD dwInfoType - see NT\Chicago docs
* LPCSTR lpSrcStr - char (byte) string for which character types
* are requested
* int cchSrc - char (byte) count of lpSrcStr (including NULL
* if any)
* LPWORD lpCharType - word array to receive character type information
* (must be twice the size of lpSrcStr)
* int code_page - for MB/WC conversion. If 0, use __lc_codepage
* BOOL bError - TRUE if MB_ERR_INVALID_CHARS set on call to
* MultiByteToWideChar when GetStringTypeW used.
*
*Exit:
* Success: TRUE
* Failure: FALSE
*
*Exceptions:
*
*******************************************************************************/
static BOOL __cdecl __crtGetStringTypeA_stat(
_locale_t plocinfo,
DWORD dwInfoType,
LPCSTR lpSrcStr,
int cchSrc,
LPWORD lpCharType,
int code_page,
BOOL bError
)
{
int retval1;
int buff_size;
wchar_t *wbuffer;
BOOL retval2 = FALSE;
/*
* Convert string and return the requested information. Note that
* we are converting to a wide character string so there is not a
* one-to-one correspondence between number of multibyte chars in the
* input string and the number of wide chars in the buffer. However,
* there had *better be* a one-to-one correspondence between the
* number of multibyte characters and the number of WORDs in the
* return buffer.
*/
/*
* Use __lc_codepage for conversion if code_page not specified
*/
if (0 == code_page)
code_page = plocinfo->locinfo->lc_codepage;
/* find out how big a buffer we need */
if ( 0 == (buff_size = MultiByteToWideChar( code_page,
bError ?
MB_PRECOMPOSED |
MB_ERR_INVALID_CHARS
: MB_PRECOMPOSED,
lpSrcStr,
cchSrc,
NULL,
0 )) )
return FALSE;
/* allocate enough space for wide chars */
wbuffer = (wchar_t *)_calloca( sizeof(wchar_t), buff_size );
if ( wbuffer == NULL ) {
return FALSE;
}
(void)memset( wbuffer, 0, sizeof(wchar_t) * buff_size );
/* do the conversion */
if ( 0 != (retval1 = MultiByteToWideChar( code_page,
MB_PRECOMPOSED,
lpSrcStr,
cchSrc,
wbuffer,
buff_size )) )
/* obtain result */
retval2 = GetStringTypeW( dwInfoType,
wbuffer,
retval1,
lpCharType );
_freea(wbuffer);
return retval2;
}
extern "C" BOOL __cdecl __crtGetStringTypeA(
_locale_t plocinfo,
DWORD dwInfoType,
LPCSTR lpSrcStr,
int cchSrc,
LPWORD lpCharType,
int code_page,
BOOL bError
)
{
_LocaleUpdate _loc_update(plocinfo);
return __crtGetStringTypeA_stat(
_loc_update.GetLocaleT(),
dwInfoType,
lpSrcStr,
cchSrc,
lpCharType,
code_page,
bError
);
}