/***
*stricoll.c - Collate locale strings without regard to case
*
*   Copyright (c) 1988-1995, Microsoft Corporation. All rights reserved.
*
*Purpose:
*   Compare two strings using the locale LC_COLLATE information.
*
*Revision History:
*       10-16-91  ETC   Created from strcoll.c
*       12-08-91  ETC   Remove availability under !_INTL; updated api; add mt.
*       04-06-92  KRS   Make work without _INTL switches too.
*       08-19-92  KRS   Activate NLS support.
*       09-02-92  SRW   Get _INTL definition via ..\crt32.def
*       12-16-92  KRS   Optimize for CompareStringW  by using -1 for string len.
*       04-06-93  SKS   Replace _CRTAPI* with __cdecl
*       04-14-93  CFW   Error sets errno, cleanup.
*       06-02-93  SRW   ignore _INTL if _NTSUBSET_ defined.
*       09-15-93  CFW   Use ANSI conformant "__" names.
*       09-22-93  CFW   Use __crtxxx internal NLS API wrapper.
*       09-29-93  GJF   Merged NT SDK and Cuda versions.
*       11-09-93  CFW   Use LC_COLLATE code page for __crtxxx() conversion.
*       04-11-93  CFW   Change NLSCMPERROR to _NLCMPERROR.
*       09-06-94  CFW   Remove _INTL switch.
*       10-24-94  GJF   Sped up C locale, multi-thread case.
*       12-29-94  CFW   Merge non-Win32.
*       09-26-95  GJF   New locking macro, and scheme, for functions which
*                       reference the locale.
*       10-30-95  GJF   Specify SORT_STRINGSORT to CompareString.
*       11-25-95  BWT   stricmp simply calls strcmpi... Use strcmpi instead.
*
*******************************************************************************/

#include <cruntime.h>
#include <string.h>

#ifdef _WIN32
#include <windows.h>
#include <stdlib.h>
#include <malloc.h>
#include <locale.h>
#include <setlocal.h>
#include <mtdll.h>
#include <errno.h>
#include <awint.h>
#endif /* _WIN32 */

/***
*int _stricoll() - Collate locale strings without regard to case
*
*Purpose:
*	Compare two strings using the locale LC_COLLATE information
*	without regard to case.
*
*Entry:
*	const char *s1 = pointer to the first string
*	const char *s2 = pointer to the second string
*
*Exit:
*	Less than 0    = first string less than second string
*	0	       = strings are equal
*	Greater than 0 = first string greater than second string
*
*Exceptions:
*	_NLSCMPERROR    = error
*	errno = EINVAL
*
*******************************************************************************/

int __cdecl _stricoll (
	const char *_string1,
	const char *_string2
	)
{
#if	defined(_WIN32) && !defined(_NTSUBSET_)

	int ret;
        int coll_codepage;
	WCHAR wcstmp[MAX_CP_LEN];
#if     defined(_MT) && !defined(DLL_FOR_WIN32S)
        int local_lock_flag;
#endif

	if (__lc_handle[LC_COLLATE] == _CLOCALEHANDLE) {
		return _strcmpi(_string1, _string2);
	}

	_lock_locale( local_lock_flag)

#if     defined(_MT) && !defined(DLL_FOR_WIN32S)
	if (__lc_handle[LC_COLLATE] == _CLOCALEHANDLE) {
		_unlock_locale( local_lock_flag )
		return _strcmpi(_string1, _string2);
	}
#endif

        /*
         * Must use default code page for the LC_COLLATE category for
         * MB/WC conversion inside __crtxxx().
         */

	if (__crtGetLocaleInfoW(__lc_handle[LC_COLLATE], LOCALE_IDEFAULTCODEPAGE,
            wcstmp, MAX_CP_LEN, 0) == 0)
        	return _NLSCMPERROR;

	coll_codepage = (int)wcstol(wcstmp, NULL, 10);

	if (0 == (ret = __crtCompareStringA(__lc_handle[LC_COLLATE],
	    SORT_STRINGSORT | NORM_IGNORECASE, _string1, -1, _string2, -1,
            coll_codepage)))
            goto error_cleanup;

	_unlock_locale( local_lock_flag )
	return (ret - 2);

error_cleanup:
	_unlock_locale( local_lock_flag )
	errno = EINVAL;
	return _NLSCMPERROR;

#else

	return _strcmpi(_string1, _string2);

#endif
}