feat: IP_RECVTTL/IPV6_RECVHOPLIMIT for DragonFlyBSD

Author: SteveLauC

libc-test/semver/dragonfly.txt

@@ -1587,3 +1587,5 @@ xucred
 eaccess
 dirname
 basename
+IP_RECVTTL
+IPV6_RECVHOPLIMIT

src/unix/bsd/freebsdlike/freebsd/mod.rs

@@ -3740,8 +3740,6 @@ pub const IP_RSS_LISTEN_BUCKET: ::c_int = 26;
 pub const IP_ORIGDSTADDR: ::c_int = 27;
 pub const IP_RECVORIGDSTADDR: ::c_int = IP_ORIGDSTADDR;
 
-pub const IP_RECVTTL: ::c_int = 65;
-pub const IPV6_RECVHOPLIMIT: ::c_int = 37;
 pub const IP_DONTFRAG: ::c_int = 67;
 pub const IP_RECVTOS: ::c_int = 68;
 

src/unix/bsd/freebsdlike/mod.rs

@@ -962,6 +962,8 @@ pub const IP_SENDSRCADDR: ::c_int = IP_RECVDSTADDR;
 pub const IP_ADD_MEMBERSHIP: ::c_int = 12;
 pub const IP_DROP_MEMBERSHIP: ::c_int = 13;
 pub const IP_RECVIF: ::c_int = 20;
+pub const IP_RECVTTL: ::c_int = 65;
+pub const IPV6_RECVHOPLIMIT: ::c_int = 37;
 pub const IPV6_JOIN_GROUP: ::c_int = 12;
 pub const IPV6_LEAVE_GROUP: ::c_int = 13;
 pub const IPV6_CHECKSUM: ::c_int = 26;