fix: send ETH_P_ALL in htons format

Author: tzneal

CHANGELOG.md

@@ -34,6 +34,8 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 ### Fixed
 - Fix `SockaddrIn6` bug that was swapping flowinfo and scope_id byte ordering.
   ([#1964](https://github.com/nix-rust/nix/pull/1964))
+- Fix: send ETH_P_ALL in htons format 
+  ([#1925](https://github.com/nix-rust/nix/pull/1925))
 
 ### Removed
 

src/sys/socket/mod.rs

@@ -217,7 +217,7 @@ pub enum SockProtocol {
     // The protocol number is fed into the socket syscall in network byte order.
     #[cfg(any(target_os = "android", target_os = "linux"))]
     #[cfg_attr(docsrs, doc(cfg(all())))]
-    EthAll = libc::ETH_P_ALL.to_be(),
+    EthAll = (libc::ETH_P_ALL as u16).to_be() as i32,
     /// The Controller Area Network raw socket protocol
     /// ([ref](https://docs.kernel.org/networking/can.html#how-to-use-socketcan))
     #[cfg(target_os = "linux")]