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Add wctomb() check

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sin 2015-03-04 13:12:58 +00:00
parent 911f402e94
commit 3d237352de
1 changed files with 13 additions and 0 deletions
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13
include/wchar.h
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@ -149,6 +149,17 @@ __fortify_wcstombs(char *s, const wchar_t *ws, size_t n)
return wcstombs(s, ws, n);
}
static inline __attribute__ ((always_inline))
int
__fortify_wctomb(char *s, wchar_t wc)
{
size_t bos = __builtin_object_size(s, 0);
if (MB_CUR_MAX > bos)
__builtin_trap();
return wctomb(s, wc);
}
static inline __attribute__ ((always_inline))
wchar_t *
__fortify_wmemcpy(wchar_t *d, const wchar_t *s, size_t n)
@ -206,6 +217,8 @@ __fortify_wmemset(wchar_t *s, wchar_t c, size_t n)
#define wcsrtombs(d, s, n, st) __fortify_wcsrtombs(d, s, n, st)
#undef wcstombs
#define wcstombs(s, ws, n) __fortify_wcstombs(s, ws, n)
#undef wctomb
#define wctomb(s, wc) __fortify_wctomb(s, wc)
#undef wmemcpy
#define wmemcpy(d, s, n) __fortify_wmemcpy(d, s, n)
#undef wmemmove