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-rw-r--r--libjava/gnu/java/net/PlainDatagramSocketImpl.java17
1 files changed, 15 insertions, 2 deletions
diff --git a/libjava/gnu/java/net/PlainDatagramSocketImpl.java b/libjava/gnu/java/net/PlainDatagramSocketImpl.java
index 9f710d37b4c..a3146518783 100644
--- a/libjava/gnu/java/net/PlainDatagramSocketImpl.java
+++ b/libjava/gnu/java/net/PlainDatagramSocketImpl.java
@@ -211,8 +211,21 @@ public final class PlainDatagramSocketImpl extends DatagramSocketImpl
*/
public native Object getOption(int optID) throws SocketException;
- private native void mcastGrp(InetAddress inetaddr, NetworkInterface netIf,
- boolean join) throws IOException;
+ /**
+ * Joins or leaves a broadcasting group on a given network interface.
+ * If the network interface is <code>null</code> the group is join/left on
+ * all locale network interfaces.
+ *
+ * @param inetAddr The broadcast address.
+ * @param netIf The network interface to join the group on.
+ * @param join True to join a broadcasting group, fals to leave it.
+ *
+ * @exception IOException If an error occurs.
+ */
+ private native void mcastGrp(InetAddress inetAddr,
+ NetworkInterface netIf,
+ boolean join)
+ throws IOException;
/**
* Closes the socket
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