JSocketAddress.hh

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#ifndef __JNET__JSOCKETADDRESS__
#define __JNET__JSOCKETADDRESS__

#include <netinet/in.h>
#include <limits>

#include "JLang/JException.hh"
#include "JSystem/JNetwork.hh"


/**
 * \author mdejong
 */

namespace JNET {}
namespace JPP { using namespace JNET; }

namespace JNET {

  using JLANG::JCastException;


  /**
   * The JSocketAddress class encapsulates the <tt>sockaddr_in</tt> data structure.
   */
  class JSocketAddress :
    public sockaddr_in
  {
  public:
    /**
     * Default constructor.
     */
    JSocketAddress()
    {
      bzero((char*) &(*this), sizeof(sockaddr_in));
    }


    /**
     * Get sockaddr.
     *
     * \return                      pointer to sockaddr structure
     */
    const sockaddr* getSockaddr() const
    {
      return (const sockaddr*) static_cast<const sockaddr_in*>(this);
    }


    /** 
     * Get sockaddr.
     *
     * \return                      pointer to sockaddr structure
     */
    sockaddr* getSockaddr()
    {
      return (sockaddr*) static_cast<sockaddr_in*>(this);
    }


    /**
     * Get family.
     *
     * \return              family
     */
    int getFamily() const
    {
      return sin_family;
    }


    /**
     * Set family.
     *
     * \param  family       family
     */
    void setFamily(const int family)
    {
      sin_family = family;
    }


    /**
     * Get host name.
     *
     * \return              host name
     */
    std::string getHostname() const
    {
      return JSYSTEM::getHostname(this->getIPnumber());
    }


    /**
     * Get IP number.
     *
     * \return              IP number
     */
    int getIPnumber() const
    {
      return sin_addr.s_addr;
    }


    /**
     * Set IP number.
     *
     * \param  ip_number    IP number
     */
    void setIPnumber(const int ip_number)
    {
      sin_addr.s_addr = ip_number;
    }


    /**
     * Set any IP number.
     */
    void setIPnumber()
    {
      sin_addr.s_addr = htonl(INADDR_ANY);
    }


    /**
     * Get port number.
     *
     * \return              port number
     */
    int getPort() const
    {
      return ntohs(this->sin_port);
    }


    /**
     * Set port number.
     *
     * \param  port         port number
     */
    void setPort(const int port)
    {
      if (port >= 0 && port <= std::numeric_limits<u_short>::max())
        sin_port = htons((u_short) port);
      else
        throw JCastException("JSocketAddress::setPort() illegal value.");
    }


    /**
     * Get size of object.
     *
     * \return               number of bytes
     */
    static int sizeOf()
    {
      return sizeof(sockaddr_in);
    }
  };
}

#endif