[Ns-bugs] [Bug 53] New: Bug in Packet::AddTrailer

[bugzilla-daemon@nsnam-www.ece.gatech.edu]

http://www.nsnam.org/bugzilla/show_bug.cgi?id=53

           Summary: Bug in Packet::AddTrailer
           Product: ns-3
           Version: pre-release
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: blocker
          Priority: P1
         Component: simulation core
        AssignedTo: ns-bugs at isi.edu
        ReportedBy: gjcarneiro at gmail.com


I think there's a bug here, from what I could learn from the Buffer unit tests.
 This patch should fix it:

diff -r e12a99f2e698 src/common/packet.h
--- a/src/common/packet.h       Tue Jul 17 14:34:27 2007 +0100
+++ b/src/common/packet.h       Tue Jul 17 14:43:13 2007 +0100
@@ -343,6 +343,7 @@ Packet::AddTrailer (T const &trailer)
   uint32_t size = trailer.GetSize ();
   m_buffer.AddAtEnd (size);
   Buffer::Iterator end = m_buffer.End ();
+  end.Prev (size);
   trailer.Serialize (end);
   m_metadata.AddTrailer (trailer, size);
 }


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