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diff --git a/ACE/ASNMP/asnmp/wpdu.h b/ACE/ASNMP/asnmp/wpdu.h
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+++ b/ACE/ASNMP/asnmp/wpdu.h
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+/* -*-C++-*- */
+#ifndef WPDU_H_
+#define WPDU_H_
+//=============================================================================
+/**
+ *  @file    wpdu.h
+ *
+ *  $Id$
+ *
+ *  Adapter class. Converts a Pdu and GenTarget into a format
+ *  that can be stuffed out a I/O port
+ *
+ *
+ *  @author Michael R. MacFaden re-worked api
+ *  @author use ACE APIPeter E Mellquist wrote original class snmpmsg
+ */
+//=============================================================================
+
+
+#include "ace/config-all.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#include "asnmp/asn1.h"
+#include "asnmp/pdu.h"
+#include "asnmp/target.h"
+
+// this is an adapter class, it peforms the following transformations
+// PDU / Target -> iovec buffer
+// iovec buffer -> PDU / Target
+struct snmp_pdu;
+/**
+ * @class wpdu
+ *
+ * @brief Implement an Adapter pattern between CMU SNMP and HP SNMP++
+ */
+class ASNMP_Export wpdu
+{
+public:
+
+  /// construct CMU data from HP SNMP++ objects
+  /// construct HP SNMP++ objects from raw buffer via CMU SNMP datatypes
+  wpdu(const Pdu& pdu, const UdpTarget& target);
+  wpdu(const iovec& buffer);
+  wpdu(); // same as using iovec?
+
+  ~wpdu();
+
+  /// constructor completed ok? rc = 1 else 0
+  int valid() const;
+
+  /// return raw data stream via CMU code
+  const iovec& get_buffer() const;
+
+  /// return HP SNMP++ pdu
+  int get_pdu(Pdu& pdu, snmp_version& version);
+
+  /// return community strptr
+  const unsigned char *get_community() const;
+
+private:
+  int convert_vb_to_smival( Vb &tempvb, SmiVALUE *smival );
+  int load_vbs(snmp_pdu *raw_pdu, const Pdu& pdu);
+  int restore_vbs(Pdu& pdu, const snmp_pdu *raw_pdu) const;
+  void free_smival_descriptor( SmiVALUE *smival );
+  static void copy_iovec(iovec& dest, const iovec& src);
+  int set_trap_info(snmp_pdu *raw_pdu, const Pdu& pdu) const;
+
+  /// raw format
+  iovec iovec_;
+
+  /// object construction state
+  int valid_flag_;
+
+  /// snmp version
+  snmp_version version_;
+
+  unsigned char community_name[MAX_COMM_STR_LEN];
+  unsigned long comm_len; // = MAX_COMM_STR_LEN;
+};
+
+#endif // WPDU_H_