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/***************************************************************************
devreader.cpp
-------------------
begin : Fri Nov 16 2007
copyright : (C) 2007 - 2012 by Roland Riegel
email : feedback@roland-riegel.de
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "devreader.h"
#include <config.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <time.h>
#include <net/if.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>
#include <unistd.h>
#ifdef HAVE_SOLARIS
#include <sys/sockio.h>
#endif
using namespace std;
DevReader::DevReader(const string& deviceName)
: m_deviceName(deviceName)
{
}
DevReader::~DevReader()
{
}
const string& DevReader::getDeviceName() const
{
return m_deviceName;
}
DataFrame DevReader::getNewDataFrame()
{
DataFrame deviceData;
struct timeval tv;
gettimeofday(&tv, 0);
readFromDevice(deviceData);
deviceData.setDeviceName(m_deviceName);
deviceData.setTimeStampSeconds((unsigned long) tv.tv_sec);
deviceData.setTimeStampMicroseconds((unsigned long) tv.tv_usec);
deviceData.setIpV4(getDeviceIp4Address());
return deviceData;
}
string DevReader::getDeviceIp4Address()
{
struct ifreq ifr;
int sk;
string deviceIp = "";
if(m_deviceName.empty())
return deviceIp;
/* create a temporary socket: ioctl needs one */
if((sk = socket(AF_INET, SOCK_STREAM, 0)) < 0)
return deviceIp;
/* copy the device name into the ifreq structure */
strncpy(ifr.ifr_name, m_deviceName.c_str(), IFNAMSIZ - 1);
ifr.ifr_name[IFNAMSIZ - 1] = 0;
/* make the request */
if(!ioctl(sk, SIOCGIFADDR, &ifr))
{
struct sockaddr_in sin;
memcpy(&sin, &ifr.ifr_addr, sizeof(sin));
/* only use the IP number if the address family is really IPv4 */
if(sin.sin_family == AF_INET)
deviceIp = inet_ntoa(sin.sin_addr);
}
/* close the temporary socket */
close(sk);
return deviceIp;
}
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