2 * Copyright (c) 2012 Intel Corporation. All Rights Reserved.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sub license, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial portions
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
18 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
19 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22 * USE OR OTHER DEALINGS IN THE SOFTWARE.
26 * C++ wrapper around an TCP socket
29 #include "TCPSocketClient.h"
31 #include <sys/types.h>
32 #include <sys/socket.h>
33 #include <netinet/in.h>
34 #include <arpa/inet.h>
42 TCPSocketClient::TCPSocketClient(const std::string &remoteAddr, const unsigned short &remotePort) throw(std::runtime_error) :
45 ::memset(&sockAddr, 0, sizeof(sockAddr));
46 sockAddr.sin_family = AF_INET;
48 if ((hp = gethostbyname(remoteAddr.c_str())) == NULL) {
49 throw std::runtime_error("Unknown host " + remoteAddr);
51 bcopy(hp->h_addr, &sockAddr.sin_addr, hp->h_length);
52 sockAddr.sin_port = htons(remotePort);
53 if ((sockDesc = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
54 throw std::runtime_error("Socket creation failed (socket())");
57 if (connect(sockDesc, (struct sockaddr *) &sockAddr, sizeof(sockAddr)) < 0) {
58 throw std::runtime_error("Error connecting to remote host (connect())");
63 TCPSocketClient::~TCPSocketClient()
70 /* Communication over socket */
72 ssize_t TCPSocketClient::recv(void *buffer, const size_t &bufferLen) throw (std::runtime_error)
75 throw std::runtime_error("socket is not connected (recv())");
77 int rval = ::read(sockDesc, buffer, bufferLen);
79 // EOF (connection closed by remote host) or error:
80 // reset state, so a new accept() call will succeed
82 ::memset(&sockAddr, 0, sizeof(sockAddr));
85 throw std::runtime_error("Error reading from socket (read())");
91 ssize_t TCPSocketClient::send(const void *buffer, const int &bufferLen) throw (std::runtime_error)
94 throw std::runtime_error("socket is not connected (send())");
97 int rval = ::write(sockDesc, buffer, bufferLen);
100 // EOF (connection closed by remote host) or error:
101 // reset state, so a new accept() call will succeed
103 ::memset(&sockAddr, 0, sizeof(sockAddr));
107 throw std::runtime_error("Error reading from socket (read())");
113 ssize_t TCPSocketClient::send(const string &message) throw (std::runtime_error)
115 return send(message.c_str(), message.length());
119 ssize_t TCPSocketClient::send(unsigned int val) throw (std::runtime_error)
121 return send(&val, 4);