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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