Endpoint.h

00001 /* Copyright (C) 2012 mbed.org, MIT License
00002  *
00003  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
00004  * and associated documentation files (the "Software"), to deal in the Software without restriction,
00005  * including without limitation the rights to use, copy, modify, merge, publish, distribute,
00006  * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
00007  * furnished to do so, subject to the following conditions:
00008  *
00009  * The above copyright notice and this permission notice shall be included in all copies or
00010  * substantial portions of the Software.
00011  *
00012  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
00013  * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00014  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
00015  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00016  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00017  */
00018 #ifndef ENDPOINT_H
00019 #define ENDPOINT_H
00020 
00021 #include "MDM.h"
00022 
00023 class UDPSocket;
00024 
00025 class Endpoint {
00026     friend class UDPSocket;
00027 public:
00028     Endpoint(void)  { 
00029         _ip[0] = '\0'; 
00030         _port = 0; 
00031         _mdm = NULL; 
00032     }
00033     
00034     void reset_address(void) { 
00035         _ip[0] = '\0'; 
00036         _port = 0; 
00037     }
00038     
00039     int  set_address(const char* host, const int port) {
00040         _ip[0] = '\0';
00041         _port = 0;
00042         if (_mdm == NULL)
00043             _mdm = MDMParser::getInstance();
00044         if (_mdm == NULL)
00045             return -1;
00046         // resove the host name (eventually does a dns lookup)
00047         MDMParser::IP ip = _mdm->gethostbyname(host);
00048         if (ip == NOIP)
00049             return -1;
00050         sprintf(_ip, IPSTR, IPNUM(ip));
00051         _port = port;
00052         return 0;
00053     }
00054     
00055     char* get_address(void)     {   return _ip; }
00056     
00057     int get_port(void)          {   return _port; }
00058     
00059 protected:
00060     MDMParser* _mdm;
00061     char _ip[17];
00062     int _port;
00063 };
00064 
00065 #endif