main.cpp

00001 #if !FEATURE_IPV4
00002     #error [NOT_SUPPORTED] IPV4 not supported for this target
00003 #endif
00004 
00005 #include "mbed.h"
00006 #include "EthernetInterface.h"
00007 #include "TCPSocket.h"
00008 #include "greentea-client/test_env.h"
00009 #include "unity/unity.h"
00010 
00011 
00012 #ifndef MBED_CFG_TCP_CLIENT_ECHO_BUFFER_SIZE
00013 #define MBED_CFG_TCP_CLIENT_ECHO_BUFFER_SIZE 256
00014 #endif
00015 
00016 namespace {
00017     char tx_buffer[MBED_CFG_TCP_CLIENT_ECHO_BUFFER_SIZE] = {0};
00018     char rx_buffer[MBED_CFG_TCP_CLIENT_ECHO_BUFFER_SIZE] = {0};
00019     const char ASCII_MAX = '~' - ' ';
00020 }
00021 
00022 void prep_buffer(char *tx_buffer, size_t tx_size) {
00023     for (size_t i=0; i<tx_size; ++i) {
00024         tx_buffer[i] = (rand() % 10) + '0';
00025     }
00026 }
00027 
00028 int main() {
00029     GREENTEA_SETUP(20, "tcp_echo_client");
00030 
00031     EthernetInterface eth;
00032     eth.connect();
00033 
00034     printf("MBED: TCPClient IP address is '%s'\n", eth.get_ip_address());
00035     printf("MBED: TCPClient waiting for server IP and port...\n");
00036 
00037     greentea_send_kv("target_ip", eth.get_ip_address());
00038 
00039     bool result = false;
00040 
00041     char recv_key[] = "host_port";
00042     char ipbuf[60] = {0};
00043     char portbuf[16] = {0};
00044     unsigned int port = 0;
00045 
00046     greentea_send_kv("host_ip", " ");
00047     greentea_parse_kv(recv_key, ipbuf, sizeof(recv_key), sizeof(ipbuf));
00048 
00049     greentea_send_kv("host_port", " ");
00050     greentea_parse_kv(recv_key, portbuf, sizeof(recv_key), sizeof(ipbuf));
00051     sscanf(portbuf, "%u", &port);
00052 
00053     printf("MBED: Server IP address received: %s:%d \n", ipbuf, port);
00054 
00055     TCPSocket sock(&eth);
00056     SocketAddress tcp_addr(ipbuf, port);
00057     if (sock.connect(tcp_addr) == 0) {
00058         printf("HTTP: Connected to %s:%d\r\n", ipbuf, port);
00059         printf("tx_buffer buffer size: %u\r\n", sizeof(tx_buffer));
00060         printf("rx_buffer buffer size: %u\r\n", sizeof(rx_buffer));
00061 
00062         prep_buffer(tx_buffer, sizeof(tx_buffer));
00063         sock.send(tx_buffer, sizeof(tx_buffer));
00064 
00065         // Server will respond with HTTP GET's success code
00066         const int ret = sock.recv(rx_buffer, sizeof(rx_buffer));
00067         
00068         result = !memcmp(tx_buffer, rx_buffer, sizeof(tx_buffer));
00069         
00070         TEST_ASSERT_EQUAL(ret, sizeof(rx_buffer));
00071         TEST_ASSERT_EQUAL(true, result);
00072     }
00073 
00074     sock.close();
00075     eth.disconnect();
00076     GREENTEA_TESTSUITE_RESULT(result);
00077 }