BOOL CUdpCast::CreateClientSocket(LPCTSTR lpszRemoteAddress, USHORT usPort, LPCTSTR lpszBindAddress, HP_SOCKADDR& bindAddr)
{
if(m_enCastMode == CM_MULTICAST)
{
if(!::GetSockAddrByHostName(lpszRemoteAddress, usPort, m_castAddr))
return FALSE;
}
else
{
m_castAddr.family = AF_INET;
m_castAddr.addr4.sin_addr.s_addr = INADDR_BROADCAST;
m_castAddr.SetPort(usPort);
}
if(!lpszBindAddress || lpszBindAddress[0] == 0)
{
bindAddr.family = m_castAddr.family;
bindAddr.SetPort(usPort);
}
else
{
if(!::sockaddr_A_2_IN(lpszBindAddress, usPort, bindAddr))
return FALSE;
if(m_enCastMode == CM_BROADCAST && bindAddr.IsIPv6())
{
::WSASetLastError(WSAEPROTONOSUPPORT);
return FALSE;
}
if(m_castAddr.family != bindAddr.family)
{
::WSASetLastError(WSAEAFNOSUPPORT);
return FALSE;
}
}
m_soClient = socket(m_castAddr.family, SOCK_DGRAM, IPPROTO_UDP);
if(m_soClient == INVALID_SOCKET)
return FALSE;
VERIFY(::SSO_UDP_ConnReset(m_soClient, FALSE) == NO_ERROR);
VERIFY(::SSO_ReuseAddress(m_soClient, m_bReuseAddress) != SOCKET_ERROR);
m_evSocket = ::WSACreateEvent();
ASSERT(m_evSocket != WSA_INVALID_EVENT);
SetRemoteHost(lpszRemoteAddress, usPort);
return TRUE;
}
BOOL CTcpClient::BindClientSocket(const HP_SOCKADDR& addrBind, const HP_SOCKADDR& addrRemote, USHORT usLocalPort)
{
if(addrBind.IsSpecified() && usLocalPort == 0)
{
if(::bind(m_soClient, addrBind.Addr(), addrBind.AddrSize()) == SOCKET_ERROR)
return FALSE;
}
else if(usLocalPort != 0)
{
HP_SOCKADDR realBindAddr = addrBind.IsSpecified() ? addrBind : HP_SOCKADDR::AnyAddr(addrRemote.family);
realBindAddr.SetPort(usLocalPort);
if(::bind(m_soClient, realBindAddr.Addr(), realBindAddr.AddrSize()) == SOCKET_ERROR)
return FALSE;
}
m_dwConnID = ::GenerateConnectionID();
return TRUE;
}