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Integer.cc

/*
 * Copyright 2003 Michael A. Marsh, Cornell University. All rights reserved.
 * This software is released under the modified BSD license.
 * See the file LICENSE in the top-level directory for details.
 */
//
// $Id: Integer.cc,v 1.3 2004/05/19 15:56:37 mmarsh Exp $
//
// $Log: Integer.cc,v $
// Revision 1.3  2004/05/19 15:56:37  mmarsh
// Added copyright and license statements.
//
// Revision 1.2  2003/11/04 22:31:46  mmarsh
// *** empty log message ***
//
//

#include "Integer.h"

using namespace CODEX_ASN1;

Integer::Integer() :
   Base( false ),
   m_value( 0 ),
   m_asn1( 0 )
{
}

Integer::Integer( int value ) :
   Base( true ),
   m_value( value )
{
   m_asn1 = ASN1_INTEGER_new();
   ASN1_INTEGER_set( m_asn1, m_value );
}
   
Integer::Integer( const ASN1_INTEGER* asn1 ) :
   Base( true )
{
   m_asn1 = M_ASN1_INTEGER_dup( asn1 );
   m_value = (int) ASN1_INTEGER_get(m_asn1);
}

Integer::Integer( const Integer& aInt ) :
   Base( aInt.m_initialized ),
   m_value( aInt.m_value ),
   m_asn1( 0 )
{
   if ( 0 != aInt.m_asn1 )
   {
      m_asn1 = M_ASN1_INTEGER_dup( aInt.m_asn1 );
   }
}

Integer::~Integer()
{
   ASN1_INTEGER_free( m_asn1 );
}

void
Integer::operator=( const Integer& aInt )
{
   m_initialized = aInt.m_initialized;
   m_value = aInt.m_value;
   if ( 0 != m_asn1 )
   {
      M_ASN1_INTEGER_free( m_asn1 );
      m_asn1 = 0;
   }
   if ( 0 != aInt.m_asn1 )
   {
      m_asn1 = M_ASN1_INTEGER_dup( aInt.m_asn1 );
   }
}

int
Integer::marshal( unsigned char ** pp ) const
{
   return i2d_ASN1_INTEGER( m_asn1, pp );
}

void*
Integer::unmarshal( void* bogus, unsigned char** pp, long length )
{
   if ( m_initialized )
   {
      return NULL;
   }
   if ( 0 == d2i_ASN1_INTEGER( &m_asn1, (unsigned char**)pp, length ) )
   {
      return NULL;
   }
   m_value = (int) ASN1_INTEGER_get(m_asn1);
   m_initialized = true;
   return this;
}

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