Merge #1456

1456: Add IpFreebind socket option r=asomers a=nox



Co-authored-by: Anthony Ramine <nox@nox.paris>

Author: bors[bot]

CHANGELOG.md

@@ -8,6 +8,8 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 - Added `if_nameindex` (#[1445](https://github.com/nix-rust/nix/pull/1445))
 - Added `nmount` for FreeBSD.
   (#[1447](https://github.com/nix-rust/nix/pull/1447))
+- Added `IpFreebind` socket option (sockopt) on Linux, Fuchsia and Android.
+  (#[1456](https://github.com/nix-rust/nix/pull/1456))
 
 ### Changed
 ### Fixed

src/sys/socket/sockopt.rs

@@ -238,6 +238,8 @@ cfg_if! {
 }
 sockopt_impl!(Both, IpMulticastTtl, libc::IPPROTO_IP, libc::IP_MULTICAST_TTL, u8);
 sockopt_impl!(Both, IpMulticastLoop, libc::IPPROTO_IP, libc::IP_MULTICAST_LOOP, bool);
+#[cfg(any(target_os = "android", target_os = "fuchsia", target_os = "linux"))]
+sockopt_impl!(Both, IpFreebind, libc::IPPROTO_IP, libc::IP_FREEBIND, bool);
 sockopt_impl!(Both, ReceiveTimeout, libc::SOL_SOCKET, libc::SO_RCVTIMEO, TimeVal);
 sockopt_impl!(Both, SendTimeout, libc::SOL_SOCKET, libc::SO_SNDTIMEO, TimeVal);
 sockopt_impl!(Both, Broadcast, libc::SOL_SOCKET, libc::SO_BROADCAST, bool);