Auto merge of #2823 - brunowonka:fuchsia, r=JohnTitor

Add IPv6 CMSG options to Fuchsia

Author: bors

libc-test/semver/fuchsia.txt

@@ -377,6 +377,9 @@ IPPROTO_TP
 IPPROTO_UDPLITE
 IPV6_ADD_MEMBERSHIP
 IPV6_DROP_MEMBERSHIP
+IPV6_RECVPKTINFO
+IPV6_RECVTCLASS
+IPV6_TCLASS
 IP_FREEBIND
 IP_TOS
 IP_RECVTOS
@@ -1228,6 +1231,7 @@ idtype_t
 if_freenameindex
 if_nameindex
 ifaddrs
+in6_pktinfo
 initgroups
 ino64_t
 input_absinfo

src/fuchsia/mod.rs

@@ -877,6 +877,11 @@ s! {
         pub c_ispeed: ::speed_t,
         pub c_ospeed: ::speed_t,
     }
+
+    pub struct in6_pktinfo {
+        pub ipi6_addr: ::in6_addr,
+        pub ipi6_ifindex: ::c_uint,
+    }
 }
 
 s_no_extra_traits! {
@@ -1788,6 +1793,9 @@ pub const IPV6_MULTICAST_LOOP: ::c_int = 19;
 pub const IPV6_ADD_MEMBERSHIP: ::c_int = 20;
 pub const IPV6_DROP_MEMBERSHIP: ::c_int = 21;
 pub const IPV6_V6ONLY: ::c_int = 26;
+pub const IPV6_RECVPKTINFO: ::c_int = 49;
+pub const IPV6_RECVTCLASS: ::c_int = 66;
+pub const IPV6_TCLASS: ::c_int = 67;
 
 pub const TCP_NODELAY: ::c_int = 1;
 pub const TCP_MAXSEG: ::c_int = 2;