14af218559
It is not legal to override standard functions using macros in C++. We may have to revisit this in the future.
46 lines
974 B
C
46 lines
974 B
C
#ifndef FORTIFY_STRINGS_H_
|
|
#define FORTIFY_STRINGS_H_
|
|
|
|
#include_next <strings.h>
|
|
|
|
#if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
|
|
|
|
#ifndef __cplusplus
|
|
|
|
#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 *src, void *dest, size_t n)
|
|
{
|
|
size_t bos = __builtin_object_size(dest, 0);
|
|
|
|
if (n > bos)
|
|
__builtin_trap();
|
|
return bcopy(src, dest, n);
|
|
}
|
|
|
|
static inline __attribute__ ((always_inline))
|
|
void
|
|
__fortify_bzero(void *src, size_t n)
|
|
{
|
|
size_t bos = __builtin_object_size(src, 0);
|
|
|
|
if (n > bos)
|
|
__builtin_trap();
|
|
return bzero(src, n);
|
|
}
|
|
|
|
#undef bcopy
|
|
#define bcopy(src, dest, n) __fortify_bcopy(src, dest, n)
|
|
#undef bzero
|
|
#define bzero(src, n) __fortify_bzero(src, n)
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#endif
|