Michael Kersh / Mbed 2 deprecated ECE4180EthernetTest

Ethernet test for ECE 4180 and others to find your IP address and do a simple HTTP GET request over port 80.

Dependencies:   mbed Socket lwip-eth lwip-sys lwip

EthernetInterface/Socket/TCPSocketConnection.cpp@0:e7ca326e76ee, 2013-04-04 (annotated)

Committer:
mkersh3
Date:
Thu Apr 04 05:26:09 2013 +0000
Revision:
0:e7ca326e76ee
Ethernet Test for ECE4180 and others to find their IP Address and do a simple HTTP GET request over port 80.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mkersh3 0:e7ca326e76ee 1 /* Copyright (C) 2012 mbed.org, MIT License
mkersh3 0:e7ca326e76ee 2 *
mkersh3 0:e7ca326e76ee 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
mkersh3 0:e7ca326e76ee 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
mkersh3 0:e7ca326e76ee 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
mkersh3 0:e7ca326e76ee 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
mkersh3 0:e7ca326e76ee 7 * furnished to do so, subject to the following conditions:
mkersh3 0:e7ca326e76ee 8 *
mkersh3 0:e7ca326e76ee 9 * The above copyright notice and this permission notice shall be included in all copies or
mkersh3 0:e7ca326e76ee 10 * substantial portions of the Software.
mkersh3 0:e7ca326e76ee 11 *
mkersh3 0:e7ca326e76ee 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
mkersh3 0:e7ca326e76ee 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
mkersh3 0:e7ca326e76ee 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
mkersh3 0:e7ca326e76ee 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mkersh3 0:e7ca326e76ee 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
mkersh3 0:e7ca326e76ee 17 */
mkersh3 0:e7ca326e76ee 18 #include "TCPSocketConnection.h"
mkersh3 0:e7ca326e76ee 19 #include <cstring>
mkersh3 0:e7ca326e76ee 20
mkersh3 0:e7ca326e76ee 21 using std::memset;
mkersh3 0:e7ca326e76ee 22 using std::memcpy;
mkersh3 0:e7ca326e76ee 23
mkersh3 0:e7ca326e76ee 24 TCPSocketConnection::TCPSocketConnection() :
mkersh3 0:e7ca326e76ee 25 _is_connected(false) {
mkersh3 0:e7ca326e76ee 26 }
mkersh3 0:e7ca326e76ee 27
mkersh3 0:e7ca326e76ee 28 int TCPSocketConnection::connect(const char* host, const int port) {
mkersh3 0:e7ca326e76ee 29 if (init_socket(SOCK_STREAM) < 0)
mkersh3 0:e7ca326e76ee 30 return -1;
mkersh3 0:e7ca326e76ee 31
mkersh3 0:e7ca326e76ee 32 if (set_address(host, port) != 0)
mkersh3 0:e7ca326e76ee 33 return -1;
mkersh3 0:e7ca326e76ee 34
mkersh3 0:e7ca326e76ee 35 if (lwip_connect(_sock_fd, (const struct sockaddr *) &_remoteHost, sizeof(_remoteHost)) < 0) {
mkersh3 0:e7ca326e76ee 36 close();
mkersh3 0:e7ca326e76ee 37 return -1;
mkersh3 0:e7ca326e76ee 38 }
mkersh3 0:e7ca326e76ee 39 _is_connected = true;
mkersh3 0:e7ca326e76ee 40
mkersh3 0:e7ca326e76ee 41 return 0;
mkersh3 0:e7ca326e76ee 42 }
mkersh3 0:e7ca326e76ee 43
mkersh3 0:e7ca326e76ee 44 bool TCPSocketConnection::is_connected(void) {
mkersh3 0:e7ca326e76ee 45 return _is_connected;
mkersh3 0:e7ca326e76ee 46 }
mkersh3 0:e7ca326e76ee 47
mkersh3 0:e7ca326e76ee 48 int TCPSocketConnection::send(char* data, int length) {
mkersh3 0:e7ca326e76ee 49 if ((_sock_fd < 0) || !_is_connected)
mkersh3 0:e7ca326e76ee 50 return -1;
mkersh3 0:e7ca326e76ee 51
mkersh3 0:e7ca326e76ee 52 if (!_blocking) {
mkersh3 0:e7ca326e76ee 53 TimeInterval timeout(_timeout);
mkersh3 0:e7ca326e76ee 54 if (wait_writable(timeout) != 0)
mkersh3 0:e7ca326e76ee 55 return -1;
mkersh3 0:e7ca326e76ee 56 }
mkersh3 0:e7ca326e76ee 57
mkersh3 0:e7ca326e76ee 58 int n = lwip_send(_sock_fd, data, length, 0);
mkersh3 0:e7ca326e76ee 59 _is_connected = (n != 0);
mkersh3 0:e7ca326e76ee 60
mkersh3 0:e7ca326e76ee 61 return n;
mkersh3 0:e7ca326e76ee 62 }
mkersh3 0:e7ca326e76ee 63
mkersh3 0:e7ca326e76ee 64 // -1 if unsuccessful, else number of bytes written
mkersh3 0:e7ca326e76ee 65 int TCPSocketConnection::send_all(char* data, int length) {
mkersh3 0:e7ca326e76ee 66 if ((_sock_fd < 0) || !_is_connected)
mkersh3 0:e7ca326e76ee 67 return -1;
mkersh3 0:e7ca326e76ee 68
mkersh3 0:e7ca326e76ee 69 size_t writtenLen = 0;
mkersh3 0:e7ca326e76ee 70 TimeInterval timeout(_timeout);
mkersh3 0:e7ca326e76ee 71 while (writtenLen < length) {
mkersh3 0:e7ca326e76ee 72 if (!_blocking) {
mkersh3 0:e7ca326e76ee 73 // Wait for socket to be writeable
mkersh3 0:e7ca326e76ee 74 if (wait_writable(timeout) != 0)
mkersh3 0:e7ca326e76ee 75 return writtenLen;
mkersh3 0:e7ca326e76ee 76 }
mkersh3 0:e7ca326e76ee 77
mkersh3 0:e7ca326e76ee 78 int ret = lwip_send(_sock_fd, data + writtenLen, length - writtenLen, 0);
mkersh3 0:e7ca326e76ee 79 if (ret > 0) {
mkersh3 0:e7ca326e76ee 80 writtenLen += ret;
mkersh3 0:e7ca326e76ee 81 continue;
mkersh3 0:e7ca326e76ee 82 } else if (ret == 0) {
mkersh3 0:e7ca326e76ee 83 _is_connected = false;
mkersh3 0:e7ca326e76ee 84 return writtenLen;
mkersh3 0:e7ca326e76ee 85 } else {
mkersh3 0:e7ca326e76ee 86 return -1; //Connnection error
mkersh3 0:e7ca326e76ee 87 }
mkersh3 0:e7ca326e76ee 88 }
mkersh3 0:e7ca326e76ee 89 return writtenLen;
mkersh3 0:e7ca326e76ee 90 }
mkersh3 0:e7ca326e76ee 91
mkersh3 0:e7ca326e76ee 92 int TCPSocketConnection::receive(char* data, int length) {
mkersh3 0:e7ca326e76ee 93 if ((_sock_fd < 0) || !_is_connected)
mkersh3 0:e7ca326e76ee 94 return -1;
mkersh3 0:e7ca326e76ee 95
mkersh3 0:e7ca326e76ee 96 if (!_blocking) {
mkersh3 0:e7ca326e76ee 97 TimeInterval timeout(_timeout);
mkersh3 0:e7ca326e76ee 98 if (wait_readable(timeout) != 0)
mkersh3 0:e7ca326e76ee 99 return -1;
mkersh3 0:e7ca326e76ee 100 }
mkersh3 0:e7ca326e76ee 101
mkersh3 0:e7ca326e76ee 102 int n = lwip_recv(_sock_fd, data, length, 0);
mkersh3 0:e7ca326e76ee 103 _is_connected = (n != 0);
mkersh3 0:e7ca326e76ee 104
mkersh3 0:e7ca326e76ee 105 return n;
mkersh3 0:e7ca326e76ee 106 }
mkersh3 0:e7ca326e76ee 107
mkersh3 0:e7ca326e76ee 108 // -1 if unsuccessful, else number of bytes received
mkersh3 0:e7ca326e76ee 109 int TCPSocketConnection::receive_all(char* data, int length) {
mkersh3 0:e7ca326e76ee 110 if ((_sock_fd < 0) || !_is_connected)
mkersh3 0:e7ca326e76ee 111 return -1;
mkersh3 0:e7ca326e76ee 112
mkersh3 0:e7ca326e76ee 113 size_t readLen = 0;
mkersh3 0:e7ca326e76ee 114 TimeInterval timeout(_timeout);
mkersh3 0:e7ca326e76ee 115 while (readLen < length) {
mkersh3 0:e7ca326e76ee 116 if (!_blocking) {
mkersh3 0:e7ca326e76ee 117 //Wait for socket to be readable
mkersh3 0:e7ca326e76ee 118 if (wait_readable(timeout) != 0)
mkersh3 0:e7ca326e76ee 119 return readLen;
mkersh3 0:e7ca326e76ee 120 }
mkersh3 0:e7ca326e76ee 121
mkersh3 0:e7ca326e76ee 122 int ret = lwip_recv(_sock_fd, data + readLen, length - readLen, 0);
mkersh3 0:e7ca326e76ee 123 if (ret > 0) {
mkersh3 0:e7ca326e76ee 124 readLen += ret;
mkersh3 0:e7ca326e76ee 125 } else if (ret == 0) {
mkersh3 0:e7ca326e76ee 126 _is_connected = false;
mkersh3 0:e7ca326e76ee 127 return readLen;
mkersh3 0:e7ca326e76ee 128 } else {
mkersh3 0:e7ca326e76ee 129 return -1; //Connnection error
mkersh3 0:e7ca326e76ee 130 }
mkersh3 0:e7ca326e76ee 131 }
mkersh3 0:e7ca326e76ee 132 return readLen;
mkersh3 0:e7ca326e76ee 133 }