blob: db08cc9af0b76a198535c9f7108056bf01cd1ba8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
#ifndef FORTIFY_STRINGS_H_
#define FORTIFY_STRINGS_H_
#include_next <strings.h>
#if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_POSIX_SOURCE) \
|| (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE+0 < 200809L) \
|| (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700)
static inline __attribute__ ((always_inline))
void __fortify_bcopy(const void *__restrict src, void *__restrict dest, size_t n)
{
size_t bos = __builtin_object_size(dest, 0);
if (n > bos)
__builtin_trap();
return bcopy(src, dest, n);
}
#undef bcopy
#define bcopy(src, dest, n) __fortify_bcopy(src, dest, n)
#endif
#endif
#endif
|