Diff: main.cpp

Revision:

0:633c10a3bb5d

Child:

1:8c10d8f4e3aa

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri May 08 18:47:52 2020 +0000
@@ -0,0 +1,80 @@
+#include "mbed.h" //MbedOS 5.15
+#include "EthernetInterface.h" 
+ 
+#define ROUTER // commented = Static IP uncomented = address assigned by router
+#ifndef ROUTER
+    #define IP          "192.168.1.1"   //Here place your static IP of Mbed
+    #define GATEWAY     "0.0.0.0"
+    #define MASK        "255.255.255.0"
+#endif
+#define PORT            20
+
+DigitalOut led1(LED1);
+
+EthernetInterface eth;
+TCPSocket server;
+TCPSocket* client;
+SocketAddress clientAddress;
+ 
+int main (void){
+    printf("TCP Echo starting...\n");
+    int eth_stat;
+#ifndef ROUTER
+    eth.disconnect();
+    eth_stat = eth.set_network((SocketAddress)IP,(SocketAddress)MASK,(SocketAddress)GATEWAY);
+    printf("set IP status: %i\n",eth_stat);
+#endif
+    eth_stat = eth.connect();
+    printf("connect status: %i\n",eth_stat);
+
+    SocketAddress ip; 
+    eth.get_ip_address(&ip);
+    const char *p_ip = ip.get_ip_address();
+    printf("IP address: %s and Port: %d\n", p_ip ? p_ip : "None" , PORT );
+    SocketAddress mask;
+    eth.get_netmask(&mask);
+    const char *p_mask = mask.get_ip_address();
+    printf("Netmask: %s\n", p_mask ? p_mask : "None");
+    SocketAddress gateway;
+    eth.get_gateway(&gateway);
+    const char *p_gateway = gateway.get_ip_address();
+    printf("Gateway: %s\n", p_gateway ? p_gateway : "None");
+    
+    if(ip){ 
+        server.open(&eth);
+        server.bind(PORT);
+        server.listen(1);
+        while (1) {
+            printf("Server bound and listening\n");
+            client = server.accept();
+
+            client->getpeername(&clientAddress);
+            const char *p_clientAddress = clientAddress.get_ip_address();
+            printf("Client connected from IP address: %s\n", p_clientAddress ? p_clientAddress : "None");
+            
+            bool b = true;
+            while (b) {
+                char in_buffer[100];
+                int n = client->recv(in_buffer, sizeof(in_buffer));
+                if (n == 0) {
+                    printf("Client disconnected\n");
+                    b = false;
+                }else{
+                    printf("Received message from Client :'%s'\n", in_buffer);
+                    char out_buffer[100];
+                    n = sprintf(out_buffer,"Echo - %s", in_buffer);
+                    
+                    printf("Sending echo to client\n");
+                    client->send(out_buffer, n);
+                    led1 =! led1;
+                }
+                led1 =! led1;
+            }
+            client->close();
+        }
+    }else{
+            printf("No IP\n");
+            eth.disconnect();
+            printf("Program end\n");
+    }
+}
\ No newline at end of file