main.cpp

00001 #include "mbed.h"
00002 #include "EthernetInterface.h"
00003  
00004 #define ECHO_SERVER_PORT   7
00005 static const char*          mbedIp       = "192.168.137.2";  //IP
00006 static const char*          mbedMask     = "255.255.255.0";  // Mask
00007 static const char*          mbedGateway  = "192.168.137.1";    //Gateway
00008 int main (void) {
00009     EthernetInterface eth;
00010     eth.init(mbedIp,mbedMask,mbedGateway); 
00011     eth.connect();
00012     printf("\nServer IP Address is %s\n", eth.getIPAddress());
00013     
00014     TCPSocketServer server;
00015     server.bind(ECHO_SERVER_PORT);
00016     server.listen();
00017     
00018     while (true) {
00019         printf("\nWait for new connection...\n");
00020         TCPSocketConnection client;
00021         server.accept(client);
00022         client.set_blocking(false, 1500); // Timeout after (1.5)s
00023         
00024         printf("Connection from: %s\n", client.get_address());
00025         char buffer[256];
00026         while (true) {
00027             int n = client.receive(buffer, sizeof(buffer));
00028             if (n <= 0) break;
00029             
00030             // print received message to terminal
00031             buffer[n] = '\0';
00032             printf("Received message from Client :'%s'\n",buffer);
00033             
00034             // reverse the message
00035             char temp;
00036             for(int f = 0, l = n-1; f<l; f++,l--){
00037                 temp = buffer[f];
00038                 buffer[f] = buffer[l];
00039                 buffer[l] = temp;
00040                 }
00041             
00042             // print reversed message to terminal
00043             printf("Sending message to Client: '%s'\n",buffer);
00044             
00045             // Echo received message back to client
00046             client.send_all(buffer, n);
00047             if (n <= 0) break;
00048         }
00049         
00050         client.close();
00051     }
00052 }
00053