errno_t __cdecl _mbslwr_s_l(
unsigned char *string,
size_t sizeInBytes,
_locale_t plocinfo
)
{
size_t stringlen;
/* validation section */
_VALIDATE_RETURN_ERRCODE((string != nullptr && sizeInBytes > 0) || (string == nullptr && sizeInBytes == 0), EINVAL);
if (string == nullptr)
{
/* nothing to do */
return 0;
}
stringlen = strnlen((char *)string, sizeInBytes);
if (stringlen >= sizeInBytes)
{
_RESET_STRING(string, sizeInBytes);
_RETURN_DEST_NOT_NULL_TERMINATED(string, sizeInBytes);
}
_FILL_STRING(string, sizeInBytes, stringlen + 1);
unsigned char *cp, *dst;
_LocaleUpdate _loc_update(plocinfo);
for (cp = string, dst = string; *cp != '\0'; ++cp)
{
if (_ismbblead_l(*cp, _loc_update.GetLocaleT()))
{
int retval;
unsigned char ret[4];
if ((retval = __acrt_LCMapStringA(
_loc_update.GetLocaleT(),
_loc_update.GetLocaleT()->mbcinfo->mblocalename,
LCMAP_LOWERCASE,
(const char *)cp,
2,
(char *)ret,
2,
_loc_update.GetLocaleT()->mbcinfo->mbcodepage,
TRUE )) == 0 )
{
errno = EILSEQ;
_RESET_STRING(string, sizeInBytes);
return errno;
}
*(dst++) = ret[0];
++cp;
if (retval > 1)
{
*(dst++) = ret[1];
}
}
else
{
/* single byte, macro version */
*(dst++) = (unsigned char) _mbbtolower_l(*cp, _loc_update.GetLocaleT());
}
}
/* null terminate the string */
*dst = '\0';
return 0;
}
extern "C" int __cdecl _mbsicmp_l(
const unsigned char *s1,
const unsigned char *s2,
_locale_t plocinfo
)
{
unsigned short c1, c2;
_LocaleUpdate _loc_update(plocinfo);
int retval;
unsigned char szResult[4];
/* validation section */
_VALIDATE_RETURN(s1 != NULL, EINVAL, _NLSCMPERROR);
_VALIDATE_RETURN(s2 != NULL, EINVAL, _NLSCMPERROR);
if (_loc_update.GetLocaleT()->mbcinfo->ismbcodepage == 0)
return _stricmp_l((const char *)s1, (const char *)s2, _loc_update.GetLocaleT());
for (;;)
{
c1 = *s1++;
if ( _ismbblead_l(c1, _loc_update.GetLocaleT()) )
{
if (*s1 == '\0')
c1 = 0;
else
{
retval = __crtLCMapStringA(
_loc_update.GetLocaleT(),
_loc_update.GetLocaleT()->mbcinfo->mblocalename,
LCMAP_UPPERCASE,
(LPCSTR)s1 - 1,
2,
(LPSTR)szResult,
2,
_loc_update.GetLocaleT()->mbcinfo->mbcodepage,
TRUE );
if (retval == 1)
c1 = szResult[0];
else if (retval == 2)
c1 = (szResult[0] << 8) + szResult[1];
else
{
errno = EINVAL;
return _NLSCMPERROR;
}
s1++;
}
}
else
c1 = _mbbtolower_l(c1, _loc_update.GetLocaleT());
c2 = *s2++;
if ( _ismbblead_l(c2, _loc_update.GetLocaleT()) )
{
if (*s2 == '\0')
c2 = 0;
else
{
retval = __crtLCMapStringA(
_loc_update.GetLocaleT(),
_loc_update.GetLocaleT()->mbcinfo->mblocalename,
LCMAP_UPPERCASE,
(LPCSTR)s2 - 1,
2,
(LPSTR)szResult,
2,
_loc_update.GetLocaleT()->mbcinfo->mbcodepage,
TRUE );
if (retval == 1)
c2 = szResult[0];
else if (retval == 2)
c2 = (szResult[0] << 8) + szResult[1];
else
{
errno = EINVAL;
return _NLSCMPERROR;
}
s2++;
}
}
else
c2 = _mbbtolower_l(c2, _loc_update.GetLocaleT());
if (c1 != c2)
return( (c1 > c2) ? 1 : -1 );
if (c1 == 0)
return(0);
}
}
int __cdecl _mbsnbicmp_l(
const unsigned char *s1,
const unsigned char *s2,
size_t n,
_locale_t plocinfo
)
{
unsigned short c1, c2;
_LocaleUpdate _loc_update(plocinfo);
if (n==0)
return(0);
if (_loc_update.GetLocaleT()->mbcinfo->ismbcodepage == 0)
return _strnicmp((const char *)s1, (const char *)s2, n);
/* validation section */
_VALIDATE_RETURN(s1 != nullptr, EINVAL, _NLSCMPERROR);
_VALIDATE_RETURN(s2 != nullptr, EINVAL, _NLSCMPERROR);
while (n--) {
c1 = *s1++;
if ( _ismbblead_l(c1, _loc_update.GetLocaleT()) )
{
if (n==0)
{
c1 = 0; /* 'naked' lead - end of string */
c2 = _ismbblead_l(*s2, _loc_update.GetLocaleT()) ? 0 : *s2;
goto test;
}
if (*s1 == '\0')
c1 = 0;
else {
c1 = ((c1<<8) | *s1++);
if ( ((c1 >= _MBUPPERLOW1_MT(_loc_update.GetLocaleT())) &&
(c1 <= _MBUPPERHIGH1_MT(_loc_update.GetLocaleT()))) )
c1 += _MBCASEDIFF1_MT(_loc_update.GetLocaleT());
else if ( ((c1 >= _MBUPPERLOW2_MT(_loc_update.GetLocaleT())) &&
(c1 <= _MBUPPERHIGH2_MT(_loc_update.GetLocaleT()))) )
c1 += _MBCASEDIFF2_MT(_loc_update.GetLocaleT());
}
}
else
c1 = _mbbtolower_l(c1, _loc_update.GetLocaleT());
c2 = *s2++;
if ( _ismbblead_l(c2, _loc_update.GetLocaleT()) )
{
if (n==0)
{
c2 = 0; /* 'naked' lead - end of string */
goto test;
}
n--;
if (*s2 == '\0')
c2 = 0;
else {
c2 = ((c2<<8) | *s2++);
if ( ((c2 >= _MBUPPERLOW1_MT(_loc_update.GetLocaleT())) &&
(c2 <= _MBUPPERHIGH1_MT(_loc_update.GetLocaleT()))) )
c2 += _MBCASEDIFF1_MT(_loc_update.GetLocaleT());
else if ( ((c2 >= _MBUPPERLOW2_MT(_loc_update.GetLocaleT())) &&
(c2 <= _MBUPPERHIGH2_MT(_loc_update.GetLocaleT()))) )
c2 += _MBCASEDIFF2_MT(_loc_update.GetLocaleT());
}
}
else
c2 = _mbbtolower_l(c2, _loc_update.GetLocaleT());
test:
if (c1 != c2)
return( (c1 > c2) ? 1 : -1);
if (c1 == 0)
return(0);
}
return(0);
}