[PATCH 2/2] Add _FORTIFY_SOURCE support for inet_ntop

[Florian Weimer]

* Aaron Merey:

> +__fortify_function __attribute_overloadable__ int
> +__NTH (inet_pton (int __af,
> +	   const char *__restrict __src,
> +	   __fortify_clang_overload_arg (void *, __restrict, __dst)))
> +    __fortify_clang_warning_only_if_bos0_lt
> +	(4, __dst, "inet_pton called with destination buffer size less than 4")
> +{
> +  size_t scale = 0;
> +  if (__af == AF_INET)
> +    scale = 1;
> +  else if (__af == AF_INET6)
> +    scale = 4;
> +  else
> +    return __inet_pton_alias (__af, __src, __dst);
> +
> +  return __glibc_fortify (inet_pton, 4, scale,
> +			  __glibc_objsize (__dst),
> +			  __af, __src, __dst);
> +};

Why not set scale to 1 and use the byte sizes directly?   This looks a
bit obfuscated.

Thanks,
Florian