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Add wmemcpy() and wmemmove() checks

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sin 2015-03-03 18:16:29 +00:00
parent a810ecae68
commit f0efb87f8f
1 changed files with 26 additions and 0 deletions
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26
include/wchar.h
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@ -16,6 +16,28 @@ __fortify_fgetws(wchar_t *s, int n, FILE *fp)
return fgetws(s, n, fp);
}
static inline __attribute__ ((always_inline))
wchar_t *
__fortify_wmemcpy(wchar_t *d, const wchar_t *s, size_t n)
{
size_t bos = __builtin_object_size(d, 0);
if (n > bos / sizeof(wchar_t))
__builtin_trap();
return wmemcpy(d, s, n);
}
static inline __attribute__ ((always_inline))
wchar_t *
__fortify_wmemmove(wchar_t *d, const wchar_t *s, size_t n)
{
size_t bos = __builtin_object_size(d, 0);
if (n > bos / sizeof(wchar_t))
__builtin_trap();
return wmemmove(d, s, n);
}
static inline __attribute__ ((always_inline))
wchar_t *
__fortify_wmemset(wchar_t *s, wchar_t c, size_t n)
@ -29,6 +51,10 @@ __fortify_wmemset(wchar_t *s, wchar_t c, size_t n)
#undef fgetws
#define fgetws(s, n, fp) __fortify_fgetws(s, n, fp)
#undef wmemcpy
#define wmemcpy(d, s, n) __fortify_wmemcpy(d, s, n)
#undef wmemmove
#define wmemmove(d, s, n) __fortify_wmemmove(d, s, n)
#undef wmemset
#define wmemset(s, c, n) __fortify_wmemset(s, c, n)