/**
* erstellt und initialisiert das Socket.
*
* @return @p true bei Erfolg, @p false bei Fehler
*
* @author FloSoft
*/
bool Socket::Create(int family, bool asUDPBroadcast)
{
// socket ggf. schließen
Close();
socket_ = asUDPBroadcast ? socket(family, SOCK_DGRAM, IPPROTO_UDP) : socket(family, SOCK_STREAM, 0);
// Ist es gültig?
status_ = (INVALID_SOCKET == socket_ ? INVALID : VALID);
if (asUDPBroadcast)
{
int enable = 1;
SetSockOpt(SO_BROADCAST, &enable, sizeof(enable), SOL_SOCKET);
}
else
{
// Nagle deaktivieren
int disable = 1;
SetSockOpt(TCP_NODELAY, &disable, sizeof(int), IPPROTO_TCP);
int enable = 1;
SetSockOpt(SO_REUSEADDR, &enable, sizeof(int), SOL_SOCKET);
}
refCount_ = new int32_t(1);
isBroadcast = asUDPBroadcast;
return (status_ != INVALID);
}
/**
@fn void set_frame_head_and_tail(m_oCommFrameStruct& frame)
@detail 填写数据包头尾信息
@param[in] frame 数据包头
@return void
@note
*/
BOOL line_socket::Create(UINT nSocketPort, int nSocketType,LPCTSTR lpszSocketAddress)
{
BOOL b_ret = TRUE;
if(lpszSocketAddress != NULL) ip_.Format(__TEXT("%s"), lpszSocketAddress);
if(nSocketPort != 0) port_ = nSocketPort;
b_ret = CAsyncSocket::Create(0x0, nSocketType, FD_READ|FD_WRITE|FD_CONNECT|FD_CLOSE, NULL);
//设置接受缓冲
int iOptionValue = recv_buff_size_ != 0 ?recv_buff_size_ : CURRENT_RECVBUF_SIZE;
int iOptionLen = sizeof(int);
SetSockOpt(SO_RCVBUF, (void*)&iOptionValue, iOptionLen, SOL_SOCKET);
//设置发送缓冲为0
iOptionValue = 0;
iOptionLen = sizeof(int);
SetSockOpt(SO_SNDBUF, (void*)&iOptionValue, iOptionLen, SOL_SOCKET);
if(b_ret) {
recv_proc_thread_ = AfxBeginThread(recv_processing_thread_proc, this);
check_timeout_thread_ = AfxBeginThread(check_timeout_thread_proc, this);
send_proc_thread_ = AfxBeginThread(send_processing_thread_proc, this);
if(recv_proc_thread_ == NULL || check_timeout_thread_ == NULL || send_proc_thread_ == NULL) {
Close();
b_ret = FALSE;
}
}
return b_ret;
}
/**
* 设置缓冲区可以收发的帧数量
* @param int iFrameCount IP帧数量
* @return BOOL TRUE：成功；FALSE：失败
*/
BOOL CSocketTailTimeFrame::SetBufferSize(int iFrameCount)
{
BOOL bReturn = false;
int iOptionValue = iFrameCount * m_iFrameSize;
int iOptionLen = sizeof(int);
bReturn = SetSockOpt(SO_RCVBUF, (void*)&iOptionValue, iOptionLen, SOL_SOCKET);
iOptionValue = iFrameCount * m_iFrameSize;
iOptionLen = sizeof(int);
bReturn = SetSockOpt(SO_SNDBUF, (void*)&iOptionValue, iOptionLen, SOL_SOCKET);
return bReturn;
}
void
sys_telnet_init(void)
{
signal(SIGINT, intr);
signal(SIGQUIT, intr2);
signal(SIGPIPE, deadpeer);
#ifdef SIGWINCH
signal(SIGWINCH, sendwin);
#endif
#ifdef SIGTSTP
signal(SIGTSTP, susp);
#endif
#ifdef SIGINFO
signal(SIGINFO, ayt);
#endif
setconnmode(0);
NetNonblockingIO(net, 1);
#if defined(SO_OOBINLINE)
if (SetSockOpt(net, SOL_SOCKET, SO_OOBINLINE, 1) == -1)
perror("setsockopt (SO_OOBINLINE) (ignored)");
#endif /* defined(SO_OOBINLINE) */
}
/**
* 初始化
* @param CString strIPForInstrument 信源IP地址
* @param UINT uiIPForInstrument 信源IP地址
* @param UINT uiPortForTailTime 信源端口号
* @param CString strIPLCI 信宿IP地址
* @param UINT uiPortLCI 信宿端口号
* @return BOOL TRUE：成功；FALSE：失败
*/
BOOL CSocketTailTimeFrame::OnInit(CString strIPForInstrument, UINT uiIPForInstrument, UINT uiPortForTailTime, CString strIPLCI, UINT uiPortLCI)
{
BOOL bReturn = false;
// LCI设备IP地址
m_strIPLCI = strIPLCI;
// LCI设备IP地址端口号
m_uiPortLCI = uiPortLCI;
// 和现场仪器通讯的本机IP地址
m_strIPForInstrument = strIPForInstrument;
// 和现场仪器通讯的本机IP地址
m_uiIPForInstrument = uiIPForInstrument;
// 用于仪器尾包时刻查询的端口号
m_uiPortForTailTime = uiPortForTailTime;
// 生成网络端口
bReturn = Create(m_uiPortForTailTime, SOCK_DGRAM, m_strIPForInstrument);
Bind(m_uiPortForTailTime,m_strIPForInstrument);
//设置广播模式
int iOptval, iOptlen;
iOptlen = sizeof(int);
iOptval = 1;
SetSockOpt(SO_BROADCAST, &iOptval, iOptlen, SOL_SOCKET);
return bReturn;
}
int ServerThread::InitServer(int max_connections)
// Initialize the server. Returns a non-zero value if any
// errors ocurr.
{
if(InitSocketLibrary() == 0) {
if(InitSocket(SOCK_STREAM, servercfg->port) < 0) return 1;
}
else {
return 1;
}
int val = 1;
if(SetSockOpt(gxsocket, SOL_SOCKET, SO_REUSEADDR,
&val, sizeof(val)) < 0) {
CheckSocketError((gxSocket *)this, "Error initializing server");
Close();
return 1;
}
// Bind the name to the socket
if(Bind() < 0) {
CheckSocketError((gxSocket *)this, "Error initializing server");
Close();
return 1;
}
// Listen for connections with a specified backlog
if(Listen(max_connections) < 0) {
CheckSocketError((gxSocket *)this, "Error initializing server");
Close();
return 1;
}
return 0;
}
int MySocket::SetSockOpt(int level, int optName, const void *optVal,
unsigned optLen)
// Sets the current socket option for the specified option level or name.
// Returns -1 if an error occurs.
{
return SetSockOpt(Mysocket, level, optName, optVal, optLen);
}
void
sys_telnet_init (void)
{
(void) signal (SIGINT, intr);
(void) signal (SIGQUIT, intr2);
(void) signal (SIGPIPE, deadpeer);
#ifdef SIGWINCH
(void) signal (SIGWINCH, sendwin);
#endif
#ifdef SIGTSTP
(void) signal (SIGTSTP, susp);
#endif
#ifdef SIGINFO
(void) signal (SIGINFO, ayt);
#endif
setconnmode (0);
NetNonblockingIO (net, 1);
#if defined(TN3270)
if (noasynchnet == 0)
{ /* DBX can't handle! */
NetSigIO (net, 1);
NetSetPgrp (net);
}
#endif /* defined(TN3270) */
#if defined(SO_OOBINLINE)
if (SetSockOpt (net, SOL_SOCKET, SO_OOBINLINE, 1) == -1)
{
perror ("SetSockOpt");
}
#endif /* defined(SO_OOBINLINE) */
}
bool ListenSocket::Listen(int backlog) {
const auto sockId = CreateSockId(TRANSPORT_TCP);
if (sockId == INVALID_SOCKID) {
return false;
}
int optValue = 1;
auto optLength = static_cast<SockLen_t>(sizeof(optValue));
auto ret = SetSockOpt(sockId, SOL_SOCKET, SO_REUSEADDR, &optValue, optLength);
if (ret == SOCKET_ERROR) {
DestroySockId(sockId);
return false;
}
auto sockAddr = m_localHost.SockAddr();
auto sockAddrLen = m_localHost.SockAddrLen();
ret = bind(sockId, sockAddr, sockAddrLen);
if (ret == SOCKET_ERROR) {
DestroySockId(sockId);
return false;
}
ret = listen(sockId, backlog);
if (ret == SOCKET_ERROR) {
DestroySockId(sockId);
return false;
}
AttachSockId(sockId);
return true;
}
HRESULT HvSetSendTimeOut(const HV_SOCKET_HANDLE& hSocket, int iMS)
{
struct timeval uTime;
uTime.tv_sec = iMS / 1000;
uTime.tv_usec = (iMS % 1000) * 1000;
int iRet = SetSockOpt(hSocket, SOL_SOCKET, SO_SNDTIMEO, (char*)&uTime, sizeof(timeval));
return (0 == iRet) ? S_OK : E_FAIL;
}
void DFClientSock::OnConnect(int nErrorCode)
{
// TODO: Add your specialized code here and/or call the base class
int iZero = 2048;
SetSockOpt(SO_RCVBUF, &iZero, sizeof(iZero));
((DFHideMainFrame*)(((CDFOpenMindApp*)AfxGetApp())->m_pMainWnd))->LogonProcess();
CAsyncSocket::OnConnect(nErrorCode);
}
int DzSetSockOpt( int fd, int level, int name, const void* option, socklen_t len )
{
DzHost* host = GetHost();
assert( host );
assert( fd >= 0 );
assert( ( fd & HANDLE_HOST_ID_MASK ) == host->hostId );
assert( !( level == SOL_SOCKET && name == SO_LINGER ) );
return SetSockOpt( host, fd, level, name, option, len );
}
TCPServerSocket::TCPServerSocket(IPAddress &cLocalAddr, int iPortNo, int iBackLog)
: TCPSocket((cLocalAddr.GetAddressFamily() == AF_INET6))
{
const int iReUseAddrFlag = 1;
SetSockOpt(SOL_SOCKET, SO_REUSEADDR, &iReUseAddrFlag, sizeof(iReUseAddrFlag));
Bind(cLocalAddr, iPortNo);
SetLocal();
Listen(iBackLog);
}
// 设置接收缓冲区大小
BOOL CSocketInterfaceDataRev::SetBufferSize(int iBufferSize)
{
BOOL bReturn = false;
int iOptionValue = iBufferSize;
int iOptionLen = sizeof(int);
bReturn = SetSockOpt(SO_RCVBUF, (void*)&iOptionValue, iOptionLen, SOL_SOCKET);
return bReturn;
}
TCPServerSocket::TCPServerSocket(int iPortNo, int iBackLog, bool bUseIPv6)
: TCPSocket(bUseIPv6)
{
const int iReUseAddrFlag = 1;
SetSockOpt(SOL_SOCKET, SO_REUSEADDR, &iReUseAddrFlag, sizeof(iReUseAddrFlag));
Bind(iPortNo);
SetLocal();
Listen(iBackLog);
}
void CGnuLocal::Init()
{
if(!Create(UDP_PORT, SOCK_DGRAM))
{
return;
}
if(!SetSockOpt(SO_BROADCAST, &m_Broadcasted, sizeof(int)))
{
return;
}
}
// 初始化
BOOL CSocketInterfaceDataRev::OnInit(CString strIPForInterface, UINT uiPortForDataReceive)
{
BOOL bReturn = false;
// 和内部通讯的本机IP地址
m_strIPForInterface = strIPForInterface;
// 用于命令帧的端口号
m_uiPortForDataReceive = uiPortForDataReceive;
// 生成网络端口
bReturn = Create(m_uiPortForDataReceive, SOCK_DGRAM, m_strIPForInterface);
//设置广播模式
int iOptval, iOptlen;
iOptlen = sizeof(int);
iOptval = 1;
SetSockOpt(SO_BROADCAST, &iOptval, iOptlen, SOL_SOCKET);
return bReturn;
}
// CSvrSocket member functions
void CSvrSocket::OnConnect(int nErrorCode)
{
// TODO: Add your specialized code here and/or call the base class
CLoginResultMsg* pMsg = new CLoginResultMsg();
pMsg->Header.type = ID_CUSTOM_SOCK_CONN_RESULT;
pMsg->Error = nErrorCode;
SendMsg(pMsg,"");
if ( nErrorCode == 0)
{
BOOL bDontLinger = FALSE;
BOOL bRet = SetSockOpt(SO_DONTLINGER, (const char*)&bDontLinger, sizeof(BOOL));
}
bConnected = nErrorCode == 0;
CAsyncSocket::OnConnect(nErrorCode);
}
/**
* 初始化
* @param CString strIPForInstrument 信宿IP地址
* @param UINT uiPortForTailFrame 信宿端口号
* @param UINT uiPortForTailFrameSend 用于尾包转发的端口号
* @return BOOL TRUE：成功；FALSE：失败
*/
BOOL CSocketTailFrame::OnInit(CString strIPForInstrument, UINT uiPortForTailFrame, UINT uiPortForTailFrameSend)
{
BOOL bReturn = false;
// 和现场仪器通讯的本机IP地址
m_strIPForInstrument = strIPForInstrument;
// 用于尾包接收的端口号
m_uiPortForTailFrame = uiPortForTailFrame;
// 用于尾包转发的端口号
m_uiPortForTailFrameSend = uiPortForTailFrameSend;
// 生成网络端口
bReturn = Create(m_uiPortForTailFrame, SOCK_DGRAM, m_strIPForInstrument);
//设置广播模式
int iOptval, iOptlen;
iOptlen = sizeof(int);
iOptval = 1;
SetSockOpt(SO_BROADCAST, &iOptval, iOptlen, SOL_SOCKET);
Bind(m_uiPortForTailFrame,m_strIPForInstrument);
return bReturn;
}
/**
* 初始化
* @param CString strIPForInterface 信源IP地址
* @param UINT uiPortForCommandSend 信源端口号
* @param UINT uiPortAimToLine 信宿端口号，测线
* @param UINT uiPortAimToOperation 信宿端口号，施工
* @return BOOL TRUE：成功；FALSE：失败
*/
BOOL CSocketInterfaceCmdSend::OnInit(CString strIPForInterface, UINT uiPortForCommandSend, UINT uiPortAimToLine, UINT uiPortAimToOperation)
{
BOOL bReturn = false;
// 和内部通讯的本机IP地址
m_strIPForInterface = strIPForInterface;
// 用于命令帧的端口号
m_uiPortForCommandSend = uiPortForCommandSend;
// 客户端目标IP端口号，测线
m_uiPortAimToLine = uiPortAimToLine;
// 客户端目标IP端口号，施工
m_uiPortAimToOperation = uiPortAimToOperation;
// 生成网络端口
bReturn = Create(m_uiPortForCommandSend, SOCK_DGRAM, m_strIPForInterface);
//设置广播模式
int iOptval, iOptlen;
iOptlen = sizeof(int);
iOptval = 1;
SetSockOpt(SO_BROADCAST, &iOptval, iOptlen, SOL_SOCKET);
return bReturn;
}
BOOL CMulticastSocket::CreateReceivingSocket(LPCTSTR strGroupIP, UINT nGroupPort)
{
/* Create socket for receiving packets from multicast group */
if(!Create(nGroupPort, SOCK_DGRAM, FD_READ))
return FALSE;
BOOL bMultipleApps = TRUE; /* allow reuse of local port if needed */
SetSockOpt(SO_REUSEADDR, (void*)&bMultipleApps, sizeof(BOOL), SOL_SOCKET);
/* Fill m_saHostGroup_in for sending datagrams */
memset(&m_saHostGroup, 0, sizeof(m_saHostGroup));
m_saHostGroup.sin_family = AF_INET;
m_saHostGroup.sin_addr.s_addr = inet_addr(strGroupIP);
m_saHostGroup.sin_port = htons((USHORT)nGroupPort);
/* Join the multicast group */
m_mrMReq.imr_multiaddr.s_addr = inet_addr(strGroupIP); /* group addr */
m_mrMReq.imr_interface.s_addr = htons(INADDR_ANY); /* use default */
if(setsockopt(m_hSocket, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char FAR *)&m_mrMReq, sizeof(m_mrMReq)) < 0)
return FALSE;
return TRUE;
}
// increases the send buffer to a bigger size
bool CEMSocket::UseBigSendBuffer()
{
#define BIGSIZE 128 * 1024
if (m_bUsesBigSendBuffers)
return true;
m_bUsesBigSendBuffers = true;
int val = BIGSIZE;
int vallen = sizeof(int);
int oldval = 0;
GetSockOpt(SO_SNDBUF, &oldval, &vallen);
if (val > oldval)
SetSockOpt(SO_SNDBUF, &val, sizeof(int));
val = 0;
vallen = sizeof(int);
GetSockOpt(SO_SNDBUF, &val, &vallen);
#if defined(_DEBUG) || defined(_BETA)
if (val == BIGSIZE)
theApp.QueueDebugLogLine(false, _T("Increased Sendbuffer for uploading socket from %uKB to %uKB"), oldval/1024, val/1024);
else
theApp.QueueDebugLogLine(false, _T("Failed to increase Sendbuffer for uploading socket, stays at %uKB"), oldval/1024);
#endif
return val == BIGSIZE;
}
main ( )
{
int sfd, cfd ;
struct sockaddr_in serveraddr, clientaddr ;
struct protoent *proto ;
long int optval = 1;
time_t ticks ;
char buf[MAXLINE] ;
u_int16_t port = 54321 ;
socklen_t length ;
proto = getprotobyname ( "tcp" ) ;
sfd = Socket( AF_INET, SOCK_STREAM, proto->p_proto ) ;
SetSockOpt ( sfd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof ( optval ) ) ;
bzero ( &serveraddr, sizeof ( serveraddr ) ) ;
serveraddr.sin_family = AF_INET ;
serveraddr.sin_addr.s_addr = htonl ( INADDR_ANY ) ;
serveraddr.sin_port = htons ( port ) ;
Bind ( sfd, ( struct sockaddr *) &serveraddr, sizeof ( serveraddr ) ) ;
Listen ( sfd, LISTENQ ) ;
length = sizeof ( clientaddr ) ;
for ( ; ; ) {
cfd = Accept ( sfd, (struct sockaddr *) &clientaddr, &length ) ;
printf ( "Get Client" ) ;
ticks = time ( NULL ) ;
snprintf ( buf, sizeof ( buf ), "<html><body bgcolor=gray><h3>%.24s<//h3><//body><//html>\r\n", \
ctime(&ticks) ) ;
//snprintf ( buf, sizeof ( buf ), "%.24s\r\n", ctime(&ticks) ) ;
writen ( cfd, buf, strlen(buf) ) ;
close ( cfd ) ;
printf ( "Connection Close\n" ) ;
}
}
CCRLSocket::CCRLSocket() {
int buffer_size = 1024 * 1024 * 16;
SetSockOpt(SO_RCVBUF, &buffer_size, sizeof(int));
}