48 рядки
1.2 KiB
C
48 рядки
1.2 KiB
C
#ifndef _FORTIFY_STRINGS_H
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#define _FORTIFY_STRINGS_H
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#include_next <strings.h>
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#if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_POSIX_SOURCE) \
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|| (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE+0 < 200809L) \
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|| (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700)
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#undef bcopy
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#undef bzero
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__typeof__(bcopy) __bcopy_orig __asm__(__USER_LABEL_PREFIX__ "bcopy");
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extern __inline __attribute__((__always_inline__,__gnu_inline__,__artificial__))
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void bcopy(const void *src, void *dst, size_t n)
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{
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size_t bos_dst = __builtin_object_size(dst, 0);
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size_t bos_src = __builtin_object_size(src, 0);
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if (n > bos_dst || n > bos_src)
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__builtin_trap();
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return __bcopy_orig(src, dst, n);
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}
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__typeof__(bzero) __bzero_orig __asm__(__USER_LABEL_PREFIX__ "bzero");
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extern __inline __attribute__((__always_inline__,__gnu_inline__,__artificial__))
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void bzero(void *src, size_t n)
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{
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size_t bos = __builtin_object_size(src, 0);
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if (n > bos)
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__builtin_trap();
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return __bzero_orig(src, n);
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}
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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#endif
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