void TcpClient::connect(const IpAddress& address, NetPort port, const Duration& timeout, const Duration& pause)
{
Expect(address.isValid(), Throw(InvalidParameter, "Invalid IpAddress"));
Expect(port != NetPort_Any, Throw(InvalidParameter, "Invalid NetPort"));
int ret;
Clock clock;
Socket::create(address.getProtocol());
prv::SockAddrBuffer buffer(address, port);
clock.start();
do
{
ret = ::connect(getHandler(), buffer.getSockAddr(), buffer.getLength());
if(ret != 0)
{
std::this_thread::sleep_for(std::chrono::milliseconds(static_cast<long long>(pause.asMilliseconds())));
}
}while(ret != 0 && clock.getElapsedTime() < timeout);
Expect(ret == 0, Throw(InternalError, "Failed to connect to the remote host"));
}
void TcpClient::connect(const IpAddress& address, NetPort port)
{
Expect(address.isValid(), Throw(InvalidParameter, "Invalid IpAddress"));
Expect(port != NetPort_Any, Throw(InvalidParameter, "Invalid NetPort"));
Socket::create(address.getProtocol());
prv::SockAddrBuffer buffer(address, port);
int ret = ::connect(getHandler(), buffer.getSockAddr(), buffer.getLength());
Expect(ret == 0, Throw(InternalError, "Failed to connect to the remote host"));
}
MacAddress MacAddress::lookup_from_ip_with_arp_table(const IpAddress& ipAddress,
bool ping) {
if(!ipAddress.isValid()) {
return MacAddress();
}
char line[500];
char ip_address[500];
int hw_type;
int flags;
char mac_address[500];
char mask[500];
char device[500];
MacAddress foundMac;
if (ping) {
ipAddress.ping(1000);
}
// ARP Table Reading Suggestion From
// http://stackoverflow.com/a/21031888
FILE *fp = fopen("/proc/net/arp", "r");
fgets(line, sizeof(line), fp); // Skip the first line (column headers).
while(fgets(line, sizeof(line), fp)) {
sscanf(line, "%s 0x%x 0x%x %s %s %s\n",
ip_address,
&hw_type,
&flags,
mac_address,
mask,
device);
if (ipAddress.toString().compare(ip_address) == 0) {
foundMac = MacAddress(mac_address);
break;
}
}
fclose(fp);
return foundMac;
}
