DLL_EXPORTED
int
libintl_vswprintf (wchar_t *resultbuf, size_t length, const wchar_t *format, va_list args)
{
if (wcschr (format, '$') == NULL)
return system_vswprintf (resultbuf, length, format, args);
else
{
size_t maxlength = length;
wchar_t *result = libintl_vasnwprintf (resultbuf, &length, format, args);
if (result != resultbuf)
{
if (maxlength > 0)
{
if (length < maxlength)
abort ();
memcpy (resultbuf, result, (maxlength - 1) * sizeof (wchar_t));
resultbuf[maxlength - 1] = 0;
}
free (result);
return -1;
}
else
return length;
}
}
DLL_EXPORTED
int
libintl_vswprintf (wchar_t *resultbuf, size_t length, const wchar_t *format, va_list args)
{
if (wcschr (format, '$') == NULL)
return system_vswprintf (resultbuf, length, format, args);
else
{
size_t maxlength = length;
wchar_t *result = libintl_vasnwprintf (resultbuf, &length, format, args);
if (result == NULL)
return -1;
if (result != resultbuf)
{
if (maxlength > 0)
{
size_t pruned_length =
(length < maxlength ? length : maxlength - 1);
memcpy (resultbuf, result, pruned_length * sizeof (wchar_t));
resultbuf[pruned_length] = 0;
}
free (result);
/* Unlike vsnprintf, which has to return the number of character that
would have been produced if the resultbuf had been sufficiently
large, the vswprintf function has to return a negative value if
the resultbuf was not sufficiently large. */
if (length >= maxlength)
return -1;
}
if (length > INT_MAX)
{
errno = EOVERFLOW;
return -1;
}
else
return length;
}
}
