Hi,
the reverse function mbsrtowcs (mingw-w64-crt/misc/mbrtowc.c) suffers
from the same problem. This second patch fixes this function as well.
Regards,
Tim Kosse
On 2016-01-04 01:19, Tim Kosse wrote:
> Hi,
>
> there's a bug in wcsrtombs (mingw-w64-crt/misc/wcrtomb.c) if null is
> passed as destination buffer. In this case, wcsrtombs does not ignore
> the len argument. Yet, according to the C99 standard, if the dst is
> null, the len argument is ignored.
>
> The attached patch fixes this bug.
>
> Regards,
> Tim Kosse
>
diff --git a/mingw-w64-crt/misc/wcrtomb.c b/mingw-w64-crt/misc/wcrtomb.c
index 299f67b..e96d061 100644
--- a/mingw-w64-crt/misc/wcrtomb.c
+++ b/mingw-w64-crt/misc/wcrtomb.c
@@ -85,7 +85,7 @@ size_t wcsrtombs (char *dst, const wchar_t **src, size_t len,
else
{
char byte_bucket [MB_LEN_MAX];
- while (n < len)
+ while (1)
{
if ((ret = __wcrtomb_cp (&byte_bucket[0], *pwc, cp, mb_max)) <= 0)
return (size_t) -1;
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