feat: add socket option IP_TOS/IPV6_TCLASS on Android/FreeBSD (#2464)

* feat: add socket option IP_TOS/IPV6_TCLASS on Android/FreeBSD

* chore: changelog entry[skip ci]

Author: SteveLauC

changelog/2464.added.md

@@ -0,0 +1 @@
+Add socket option IP_TOS (nix::sys::socket::sockopt::IpTos) IPV6_TCLASS (nix::sys::socket::sockopt::Ipv6TClass) on Android/FreeBSD

src/sys/socket/sockopt.rs

@@ -402,7 +402,7 @@ sockopt_impl!(
     libc::SO_PRIORITY,
     libc::c_int
 );
-#[cfg(target_os = "linux")]
+#[cfg(any(linux_android, target_os = "freebsd"))]
 #[cfg(feature = "net")]
 sockopt_impl!(
     #[cfg_attr(docsrs, doc(cfg(feature = "net")))]
@@ -414,7 +414,7 @@ sockopt_impl!(
     libc::IP_TOS,
     libc::c_int
 );
-#[cfg(target_os = "linux")]
+#[cfg(any(linux_android, target_os = "freebsd"))]
 #[cfg(feature = "net")]
 sockopt_impl!(
     #[cfg_attr(docsrs, doc(cfg(feature = "net")))]

test/sys/test_sockopt.rs

@@ -469,7 +469,7 @@ fn test_so_priority() {
 }
 
 #[test]
-#[cfg(target_os = "linux")]
+#[cfg(any(linux_android, target_os = "freebsd"))]
 fn test_ip_tos() {
     let fd = socket(
         AddressFamily::Inet,
@@ -484,7 +484,7 @@ fn test_ip_tos() {
 }
 
 #[test]
-#[cfg(target_os = "linux")]
+#[cfg(any(linux_android, target_os = "freebsd"))]
 // Disable the test under emulation because it fails in Cirrus-CI.  Lack
 // of QEMU support is suspected.
 #[cfg_attr(qemu, ignore)]