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jeremybenn |
#ifndef os
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# define os(ptr) __builtin_object_size (ptr, 0)
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#endif
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/* This is one of the alternatives for object size checking.
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If dst has side-effects, size checking will never be done. */
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#undef memcpy
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#define memcpy(dst, src, len) \
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__builtin___memcpy_chk (dst, src, len, os (dst))
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#undef mempcpy
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#define mempcpy(dst, src, len) \
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__builtin___mempcpy_chk (dst, src, len, os (dst))
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#undef memmove
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#define memmove(dst, src, len) \
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__builtin___memmove_chk (dst, src, len, os (dst))
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#undef memset
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#define memset(dst, val, len) \
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__builtin___memset_chk (dst, val, len, os (dst))
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#undef strcpy
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#define strcpy(dst, src) \
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__builtin___strcpy_chk (dst, src, os (dst))
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#undef stpcpy
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#define stpcpy(dst, src) \
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__builtin___stpcpy_chk (dst, src, os (dst))
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#undef strcat
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#define strcat(dst, src) \
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__builtin___strcat_chk (dst, src, os (dst))
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#undef strncpy
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#define strncpy(dst, src, len) \
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__builtin___strncpy_chk (dst, src, len, os (dst))
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#undef strncat
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#define strncat(dst, src, len) \
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__builtin___strncat_chk (dst, src, len, os (dst))
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#undef sprintf
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#define sprintf(dst, ...) \
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__builtin___sprintf_chk (dst, 0, os (dst), __VA_ARGS__)
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#undef vsprintf
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#define vsprintf(dst, fmt, ap) \
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__builtin___vsprintf_chk (dst, 0, os (dst), fmt, ap)
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#undef snprintf
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#define snprintf(dst, len, ...) \
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__builtin___snprintf_chk (dst, len, 0, os (dst), __VA_ARGS__)
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#undef vsnprintf
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#define vsnprintf(dst, len, fmt, ap) \
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__builtin___vsnprintf_chk (dst, len, 0, os (dst), fmt, ap)
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/* Now "redefine" even builtins for the purpose of testing. */
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#undef __builtin_memcpy
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#define __builtin_memcpy(dst, src, len) memcpy (dst, src, len)
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#undef __builtin_mempcpy
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#define __builtin_mempcpy(dst, src, len) mempcpy (dst, src, len)
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#undef __builtin_memmove
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#define __builtin_memmove(dst, src, len) memmove (dst, src, len)
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#undef __builtin_memset
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#define __builtin_memset(dst, val, len) memset (dst, val, len)
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#undef __builtin_strcpy
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#define __builtin_strcpy(dst, src) strcpy (dst, src)
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#undef __builtin_stpcpy
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#define __builtin_stpcpy(dst, src) stpcpy (dst, src)
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#undef __builtin_strcat
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#define __builtin_strcat(dst, src) strcat (dst, src)
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#undef __builtin_strncpy
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#define __builtin_strncpy(dst, src, len) strncpy (dst, src, len)
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#undef __builtin_strncat
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#define __builtin_strncat(dst, src, len) strncat (dst, src, len)
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#undef __builtin_sprintf
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#define __builtin_sprintf(dst, ...) sprintf (dst, __VA_ARGS__)
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#undef __builtin_vsprintf
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#define __builtin_vsprintf(dst, fmt, ap) vsprintf (dst, fmt, ap)
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#undef __builtin_snprintf
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#define __builtin_snprintf(dst, len, ...) snprintf (dst, len, __VA_ARGS__)
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#undef __builtin_vsnprintf
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#define __builtin_vsnprintf(dst, len, fmt, ap) vsnprintf (dst, len, fmt, ap)
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extern void *chk_fail_buf[];
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extern volatile int chk_fail_allowed, chk_calls;
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extern volatile int memcpy_disallowed, mempcpy_disallowed, memmove_disallowed;
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extern volatile int memset_disallowed, strcpy_disallowed, stpcpy_disallowed;
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extern volatile int strncpy_disallowed, strcat_disallowed, strncat_disallowed;
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extern volatile int sprintf_disallowed, vsprintf_disallowed;
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extern volatile int snprintf_disallowed, vsnprintf_disallowed;
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