38 lines
1.1 KiB
C++
38 lines
1.1 KiB
C++
#include "mbed.h"
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#include "test_env.h"
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#include "EthernetInterface.h"
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namespace {
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const int ECHO_SERVER_PORT = 7;
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const int BUFFER_SIZE = 64;
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}
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int main (void) {
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MBED_HOSTTEST_TIMEOUT(20);
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MBED_HOSTTEST_SELECT(udpecho_server_auto);
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MBED_HOSTTEST_DESCRIPTION(UDP echo server);
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MBED_HOSTTEST_START("NET_5");
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EthernetInterface eth;
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eth.init(); //Use DHCP
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eth.connect();
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printf("MBED: Server IP Address is %s:%d\r\n", eth.getIPAddress(), ECHO_SERVER_PORT);
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UDPSocket server;
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server.bind(ECHO_SERVER_PORT);
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Endpoint client;
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char buffer[BUFFER_SIZE] = {0};
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printf("MBED: Waiting for packet...\r\n");
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while (true) {
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int n = server.receiveFrom(client, buffer, sizeof(buffer));
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if (n > 0) {
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//printf("Received packet from: %s\n", client.get_address());
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const int buffer_string_end_index = n >= BUFFER_SIZE ? BUFFER_SIZE-1 : n;
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buffer[buffer_string_end_index] = '\0';
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//printf("Server received: %s\n", buffer);
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server.sendTo(client, buffer, n);
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}
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}
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}
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