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ike.utility.cpp

/*
 * Copyright (c) 2007
 *      Shrew Soft Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Redistributions in any form must be accompanied by information on
 *    how to obtain complete source code for the software and any
 *    accompanying software that uses the software.  The source code
 *    must either be included in the distribution or be available for no
 *    more than the cost of distribution plus a nominal fee, and must be
 *    freely redistributable under reasonable conditions.  For an
 *    executable file, complete source code means the source code for all
 *    modules it contains.  It does not include source code for modules or
 *    files that typically accompany the major components of the operating
 *    system on which the executable file runs.
 *
 * THIS SOFTWARE IS PROVIDED BY SHREW SOFT INC ``AS IS'' AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
 * NON-INFRINGEMENT, ARE DISCLAIMED.  IN NO EVENT SHALL SHREW SOFT INC
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 *
 * AUTHOR : Matthew Grooms
 *          mgrooms@shrew.net
 *
 */

#include "iked.h"

bool has_sockaddr( sockaddr * saddr )
{
      switch( saddr->sa_family )
      {
            case AF_INET:
            {
                  sockaddr_in * saddr_in = ( sockaddr_in * ) saddr;
                  if( saddr_in->sin_addr.s_addr )
                        return true;
            }
      }

      return false;
}

bool cmp_sockaddr( sockaddr & saddr1, sockaddr & saddr2, bool port )
{
      if( saddr1.sa_family !=
            saddr2.sa_family )
            return false;

      switch( saddr1.sa_family )
      {
            case AF_INET:
            {
                  sockaddr_in * saddr1_in = ( sockaddr_in * ) &saddr1;
                  sockaddr_in * saddr2_in = ( sockaddr_in * ) &saddr2;

                  if( saddr1_in->sin_addr.s_addr !=
                        saddr2_in->sin_addr.s_addr )
                        return false;

                  if( port )
                        if( saddr1_in->sin_port !=
                              saddr2_in->sin_port )
                              return false;

                  return true;
            }
      }

      return false;
}

bool cpy_sockaddr( sockaddr & saddr1, sockaddr & saddr2, bool port )
{
      switch( saddr1.sa_family )
      {
            case AF_INET:
            {
                  sockaddr_in * saddr1_in = ( sockaddr_in * ) &saddr1;
                  sockaddr_in * saddr2_in = ( sockaddr_in * ) &saddr2;

                  SET_SALEN( saddr2_in, sizeof( sockaddr_in  ) );
                  saddr2_in->sin_family = AF_INET;
                  saddr2_in->sin_addr = saddr1_in->sin_addr;

                  if( port )
                        saddr2_in->sin_port = saddr1_in->sin_port;
                  else
                        saddr2_in->sin_port = 0;

                  return true;
            }
      }

      return false;
}

bool get_sockport( sockaddr & saddr, u_int16_t & port )
{
      switch( saddr.sa_family )
      {
            case AF_INET:
            {
                  sockaddr_in * saddr_in = ( sockaddr_in * ) &saddr;
                  port = saddr_in->sin_port;

                  return true;
            }
      }

      return false;
}

bool set_sockport( sockaddr & saddr, u_int16_t port )
{
      switch( saddr.sa_family )
      {
            case AF_INET:
            {
                  sockaddr_in * saddr_in = ( sockaddr_in * ) &saddr;
                  saddr_in->sin_port = port;

                  return true;
            }
      }

      return false;
}

bool cmp_ikeaddr( IKE_SADDR & addr1, IKE_SADDR & addr2, bool port )
{
      return cmp_sockaddr( addr1.saddr, addr2.saddr, port );
}

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