Suffix Socket::(set_)ip_transparent with v4

To indicate it an option for IPv4 sockets.

Author: Thomasdezeeuw

src/socket.rs

@@ -1189,12 +1189,12 @@ impl Socket {
 
     /// Get the value of the `IP_TRANSPARENT` option on this socket.
     ///
-    /// For more information about this option, see [`set_ip_transparent`].
+    /// For more information about this option, see [`set_ip_transparent_v4`].
     ///
-    /// [`set_ip_transparent`]: Socket::set_ip_transparent
+    /// [`set_ip_transparent_v4`]: Socket::set_ip_transparent_v4
     #[cfg(all(feature = "all", target_os = "linux"))]
     #[cfg_attr(docsrs, doc(cfg(all(feature = "all", target_os = "linux"))))]
-    pub fn ip_transparent(&self) -> io::Result<bool> {
+    pub fn ip_transparent_v4(&self) -> io::Result<bool> {
         unsafe {
             getsockopt::<c_int>(self.as_raw(), sys::IPPROTO_IP, libc::IP_TRANSPARENT)
                 .map(|transparent| transparent != 0)
@@ -1218,7 +1218,7 @@ impl Socket {
     /// requires that this option be set on the redirected socket.
     #[cfg(all(feature = "all", target_os = "linux"))]
     #[cfg_attr(docsrs, doc(cfg(all(feature = "all", target_os = "linux"))))]
-    pub fn set_ip_transparent(&self, transparent: bool) -> io::Result<()> {
+    pub fn set_ip_transparent_v4(&self, transparent: bool) -> io::Result<()> {
         unsafe {
             setsockopt(
                 self.as_raw(),

tests/socket.rs

@@ -1366,8 +1366,8 @@ test!(
 #[cfg(all(feature = "all", target_os = "linux"))]
 test!(
     #[ignore = "setting `IP_TRANSPARENT` requires the `CAP_NET_ADMIN` capability (works when running as root)"]
-    ip_transparent,
-    set_ip_transparent(true)
+    ip_transparent_v4,
+    set_ip_transparent_v4(true)
 );
 #[cfg(all(feature = "all", any(target_os = "fuchsia", target_os = "linux")))]
 test!(