fortify-headers

commit c08370434fe1c1cdc0963cf2317583676bb1799b
parent ae6576eada328e1b7d0ba42b35e157c0aaa38299
Author: jvoisin <julien.voisin@dustri.org>
Date:   Fri, 31 Oct 2025 21:08:47 +0100

Remove wctomb

It's unfortunately valid to pass a buffer smaller than MB_CUR_MAX to wctomb, so
let's not trap on this. Moreover, it's supposed to be implemented in stdlib.h
and not wchar.h anyway.

Diffstat:
M
include/wchar.h
 | 
10
----------

1 file changed, 0 insertions(+), 10 deletions(-)
diff --git a/include/wchar.h b/include/wchar.h
@@ -51,7 +51,6 @@ extern "C" {
 #undef wcsncpy
 #undef wcsrtombs
 #undef wcstombs
-#undef wctomb
 #undef wmemcpy
 #undef wmemmove
 #undef wmemset
@@ -228,15 +227,6 @@ _FORTIFY_FN(wcstombs) size_t wcstombs(char * _FORTIFY_POS0 __s,
 	return __orig_wcstombs(__s, __ws, __n);
 }
 
-_FORTIFY_FN(wctomb) int wctomb(char * _FORTIFY_POS0 __s, wchar_t __w)
-{
-	size_t __b = __bos(__s, 0);
-
-	if (__s && MB_LEN_MAX > __b && MB_CUR_MAX > __b)
-		__builtin_trap();
-	return __orig_wctomb(__s, __w);
-}
-
 _FORTIFY_FN(wmemcpy) wchar_t *wmemcpy(wchar_t * _FORTIFY_POS0 __d,
                                       const wchar_t *__s, size_t __n)
 {