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Add fgetws() check

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sin 2015-03-03 14:34:35 +00:00
parent 7279c33202
commit 2ced6e28c3
1 changed files with 24 additions and 0 deletions
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include/wchar.h Normal file
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#ifndef FORTIFY_WCHAR_H_
#define FORTIFY_WCHAR_H_
#include_next <wchar.h>
#if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
static inline __attribute__ ((always_inline))
wchar_t *
__fortify_fgetws(wchar_t *s, int n, FILE *fp)
{
size_t bos = __builtin_object_size(s, 0);
if ((size_t)n > bos / sizeof(wchar_t))
__builtin_trap();
return fgetws(s, n, fp);
}
#undef fgetws
#define fgetws(s, n, fp) __fortify_fgetws(s, n, fp)
#endif
#endif