Hi,
I am looking for a way to make code between ipv4 and ipv6 having less
ifdef's. What I (think I) need is a way to find out the PF_xxx of a
socket socket. Much like:
if (do6)
s = socket(PF_INET6, ...);
else
s = socket(PF_INET, ...);
setsockopt(s, IPPROTO_IPvX(s), ...);
I want to write the macro IPPROTO_IPvX(s), returning IPPROTO_IP if the
socket's domain is PF_INET and IPPROTO_IPV6 if it's PF_INET6.
I have been going trhough rfc2553 but couldn't find it. Does anybody
have a clue ?
- Wilbert
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