AFDatagramSocketImpl: Set ByteBuffer positions

kohlschutter · Jun 26, 2023 · 3c4dc85 · 3c4dc85
1 parent bf980c5
commit 3c4dc85
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/junixsocket-common/src/main/java/org/newsclub/net/unix/AFDatagramSocketImpl.java b/junixsocket-common/src/main/java/org/newsclub/net/unix/AFDatagramSocketImpl.java
@@ -207,6 +207,7 @@ protected final void send(DatagramPacket p) throws IOException {
         sendToBuf = AFSocketAddress.SOCKETADDRESS_BUFFER_TL.get();
         sendToBufLen = NativeUnixSocket.bytesToSockAddr(getAddressFamily().getDomain(), sendToBuf,
             addrBytes);
+        sendToBuf.position(0);
         if (sendToBufLen == -1) {
           throw new SocketException("Unsupported domain");
         }
@@ -219,6 +220,8 @@ protected final void send(DatagramPacket p) throws IOException {
     ByteBuffer datagramPacketBuffer = core.getThreadLocalDirectByteBuffer(len);
     datagramPacketBuffer.clear();
     datagramPacketBuffer.put(p.getData(), p.getOffset(), p.getLength());
+    datagramPacketBuffer.flip();
+
     NativeUnixSocket.send(fdesc, datagramPacketBuffer, 0, len, sendToBuf, sendToBufLen,
         /* NativeUnixSocket.OPT_NON_BLOCKING | */
         NativeUnixSocket.OPT_DGRAM_MODE, ancillaryDataSupport);