MtpServer: Pass 0xFFFFFFFF for file size when receiving files >= 4GB in size

Bug: 5432487

Change-Id: Ie86e72d9d85476941eab6a9d271948b8fdde6926
Signed-off-by: Mike Lockwood <lockwood@android.com>

Author: mikeandroid

media/mtp/MtpServer.cpp

@@ -947,7 +947,12 @@ MtpResponseCode MtpServer::doSendObject() {
 
     if (mSendObjectFileSize - initialData > 0) {
         mfr.offset = initialData;
-        mfr.length = mSendObjectFileSize - initialData;
+        if (mSendObjectFileSize == 0xFFFFFFFF) {
+            // tell driver to read until it receives a short packet
+            mfr.length = 0xFFFFFFFF;
+        } else {
+            mfr.length = mSendObjectFileSize - initialData;
+        }
 
         LOGV("receiving %s\n", (const char *)mSendObjectFilePath);
         // transfer the file