Re: [PATCH rfc 1/4] net/utils: generic inet_pton_with_scope helper

[Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>]

On Tue, Feb 21, 2017 at 11:18:04PM +0200, Sagi Grimberg wrote:
> I can maybe do something like:
> 
> if (af == AF_INET || af == AF_UNSPEC) {
> 	ret = inet4_pton();
> 	if (!ret)
> 		return 0;
> 	else if (af != AF_UNSPEC)
> 		return ret;
> }
> 
> if (af == AF_INET6 || af == AF_UNSPEC) {
> 	ret = inet6_pton();
> 	if (!ret)
> 		return 0;
> 	else if (af != AF_UNSPEC)
> 		return ret;
> }
> 
> return -EINVAL;
> 
> better?

My idead was the following:

	switch (af) {
	case AF_INET:
		ret = inet_pton();
		break;
	case AF_INET6:
		ret = inet6_pton();
		break;
	case AF_UNSPEC:
		ret = inet6_pton();
		if (ret)
			ret = inet_pton();
		break;
	}
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