From 7a8c36aa4e6a1b5e48f0ee5a787f10bcfece7587 Mon Sep 17 00:00:00 2001
From: Ajay Panicker <apanicke@google.com>
Date: Thu, 5 Jan 2017 15:38:52 -0800
Subject: Prevent LocalSocket from creating an fd if fd is already there

Any LocalSocket created with a FileDescriptor will throw IOExceptions
when performing most opperations due to the fact that the LocalSocket
tries to create an implementation but fails since there is a FileDescriptor
already set.

Bug: 34095140
Test: Setup using tap&go
Change-Id: Ie8f50def6156c16617697d939d6c0ab570281642
---
 core/java/android/net/LocalSocket.java | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/core/java/android/net/LocalSocket.java b/core/java/android/net/LocalSocket.java
index 3f8d9d3b6723..d9ad74beb016 100644
--- a/core/java/android/net/LocalSocket.java
+++ b/core/java/android/net/LocalSocket.java
@@ -73,6 +73,7 @@ public class LocalSocket implements Closeable {
         this(new LocalSocketImpl(fd), SOCKET_UNKNOWN);
         isBound = true;
         isConnected = true;
+        implCreated = true;
     }
 
     private LocalSocket(LocalSocketImpl impl, int sockType) {
@@ -223,11 +224,11 @@ public class LocalSocket implements Closeable {
         implCreateIfNeeded();
         impl.shutdownOutput();
     }
-    
+
     public void setReceiveBufferSize(int size) throws IOException {
         impl.setOption(SocketOptions.SO_RCVBUF, Integer.valueOf(size));
     }
-    
+
     public int getReceiveBufferSize() throws IOException {
         return ((Integer) impl.getOption(SocketOptions.SO_RCVBUF)).intValue();
     }
@@ -235,7 +236,7 @@ public class LocalSocket implements Closeable {
     public void setSoTimeout(int n) throws IOException {
         impl.setOption(SocketOptions.SO_TIMEOUT, Integer.valueOf(n));
     }
-    
+
     public int getSoTimeout() throws IOException {
         return ((Integer) impl.getOption(SocketOptions.SO_TIMEOUT)).intValue();
     }
@@ -243,7 +244,7 @@ public class LocalSocket implements Closeable {
     public void setSendBufferSize(int n) throws IOException {
         impl.setOption(SocketOptions.SO_SNDBUF, Integer.valueOf(n));
     }
-    
+
     public int getSendBufferSize() throws IOException {
         return ((Integer) impl.getOption(SocketOptions.SO_SNDBUF)).intValue();
     }
@@ -328,5 +329,5 @@ public class LocalSocket implements Closeable {
      */
     public FileDescriptor getFileDescriptor() {
         return impl.getFileDescriptor();
-    }    
+    }
 }
-- 
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