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Hello, if an IP address is not reachable then TCPConnect lasts about 21 seconds for me the return with the error. Now I wrote a function using my socket_UDF to set a timeout if the IP address cannot be reached. Have fun. _TCPConnectTimeout example #include "socket_UDF.au3" Global $iTimerStart, $iSock Global $TestIP = "1.2.3.4" Global $TestPort = 800 Global $ConnectionTimeout = 1000 _WSAStartup() Global $iTimerStart = TimerInit() $iSock = _TCPConnectTimeout($TestIP, $TestPort, $ConnectionTimeout) ConsoleWrite("_TCPConnectTimeout error: " & @error & " / new socket: " & $iSock & @CRLF) ConsoleWrite("Function lasts: " & Round(TimerDiff($iTimerStart), 3) & @LF) $iTimerStart = TimerInit() $iSock = TCPConnect($TestIP, $TestPort) ConsoleWrite("TCPConnect error: " & @error & " / new socket: " & $iSock & @CRLF) ConsoleWrite("Function lasts: " & Round(TimerDiff($iTimerStart), 3) & @LF) ; about 21 seconds for me _WSACleanup() Exit Func _TCPConnectTimeout($IP, $Port, $Timeout) Local Const $WSAEWOULDBLOCK = 10035 Local $iSocket, $iResult, $tTimeout, $tWrite, $tErr $iSocket = _socket() If $iSocket = $SOCKET_ERROR Then Return SetError(1, 0, -1) $iResult = _ioctlsocket($iSocket, $FIONBIO, 1) ; nonblocking socket If $iResult <> 0 Then _closesocket($iSocket) Return SetError(2, 0, -1) EndIf $iResult = _connect($iSocket, $IP, $Port) If $iResult = $SOCKET_ERROR Then If _WSAGetLastError() = $WSAEWOULDBLOCK Then $tWrite = DllStructCreate($tagFd_set) $tErr = DllStructCreate($tagFd_set) _FD_SET($iSocket, $tWrite) _FD_SET($iSocket, $tErr) $iResult = _selectEx(0, DllStructGetPtr($tWrite), DllStructGetPtr($tErr), $Timeout) If $iResult <= 0 Then _closesocket($iSocket) Return SetError(3, 0, -1) ;timeout Else If Not _FD_ISSET($iSocket, $tWrite) Then _closesocket($iSocket) Return SetError(4, 0, -1) ; $tErr must have been set EndIf EndIf Else _closesocket($iSocket) Return SetError(5, 0, -1) ; another WSA error EndIf EndIf $iResult = _ioctlsocket($iSocket, $FIONBIO, 0) ; blocking socket again If $iResult <> 0 Then _closesocket($iSocket) Return SetError(6, 0, -1) EndIf Return $iSocket EndFunc ;==>_TCPConnectTimeoutsocket_UDF #include-once ; Some socket functions ; Author: funkey ; Project start 2013.03.12 ; Actual project date 2013.08.27 Global Const $tagIN_ADDR = "ulong S_addr;" Global Const $tagSockAddr = "USHORT sa_family;char sa_data[14]" Global Const $tagSockAddr_In = "short sin_family;USHORT sin_port;ULONG sin_addr;char sin_zero[8]" Global Const $tagSockAddr_Storage = "short ss_family;char ss_pad1[6];INT64 ss_align;char ss_pad1[112]" Global Const $tagTimeVal = "long tv_sec;long tv_usec" Global Const $tagAddrInfo = "int ai_flags;int ai_family;int ai_socktype;int ai_protocol;uint ai_addrlen;ptr ai_canonname;ptr ai_addr;ptr ai_next" Global Const $FD_SETSIZE = 64 Global Const $tagFd_set = "UINT fd_count;UINT fd_array[" & $FD_SETSIZE & "]" Global Const $AF_UNSPEC = 0 Global Const $AF_UNIX = 1 Global Const $AF_INET = 2 Global Const $AF_IMPLINK = 3 Global Const $AF_PUP = 4 Global Const $AF_CHAOS = 5 Global Const $AF_IPX = 6 Global Const $AF_NS = 6 Global Const $AF_ISO = 7 Global Const $AF_OSI = $AF_ISO Global Const $AF_ECMA = 8 Global Const $AF_DATAKIT = 9 Global Const $AF_CCITT = 10 Global Const $AF_SNA = 11 Global Const $AF_DECnet = 12 Global Const $AF_DLI = 13 Global Const $AF_LAT = 14 Global Const $AF_HYLINK = 15 Global Const $AF_APPLETALK = 16 Global Const $AF_NETBIOS = 17 Global Const $AF_VOICEVIEW = 18 Global Const $AF_FIREFOX = 19 Global Const $AF_UNKNOWN1 = 20 Global Const $AF_BAN = 21 Global Const $AF_ATM = 22 Global Const $AF_INET6 = 23 Global Const $SOCKET_ERROR = -1 Global Const $INVALID_SOCKET = -1 Global Const $SOCK_STREAM = 1 Global Const $SOCK_DGRAM = 2 Global Const $SOCK_RAW = 3 Global Const $SOCK_RDM = 4 Global Const $SOCK_SEQPACKET = 5 Global Const $IPPROTO_IP = 0 Global Const $IPPROTO_ICMP = 1 Global Const $IPPROTO_IGMP = 2 Global Const $IPPROTO_GGP = 3 Global Const $IPPROTO_TCP = 6 Global Const $IPPROTO_PUP = 12 Global Const $IPPROTO_UDP = 17 Global Const $IPPROTO_IDP = 22 Global Const $IPPROTO_ND = 77 Global Const $IPPROTO_RAW = 255 Global Const $SOL_SOCKET = 0xFFFF ;SOL_SOCKET Socket Options ;http://msdn.microsoft.com/en-us/library/windows/desktop/ms740532(v=vs.85).aspx Global Const $IP_OPTIONS = 1 Global Const $SO_DEBUG = 1 Global Const $SO_ACCEPTCONN = 2 Global Const $SO_REUSEADDR = 4 ; BOOLEAN Global Const $SO_KEEPALIVE = 8 Global Const $SO_DONTROUTE = 16 Global Const $SO_BROADCAST = 32 ;INT Global Const $SO_USELOOPBACK = 64 Global Const $SO_LINGER = 128 Global Const $SO_OOBINLINE = 256 Global Const $SO_EXCLUSIVEADDRUSE = -5 ; BOOLEAN (~SO_REUSEADDR) Global Const $SO_DONTLINGER = -129 ; (~SO_LINGER) Global Const $SO_SNDBUF = 0x1001 Global Const $SO_RCVBUF = 0x1002 Global Const $SO_SNDLOWAT = 0x1003 Global Const $SO_RCVLOWAT = 0x1004 Global Const $SO_SNDTIMEO = 0x1005 ; DWORD Global Const $SO_RCVTIMEO = 0x1006 ; DWORD Global Const $SO_ERROR = 0x1007 Global Const $SO_TYPE = 0x1008 Global Const $FIONBIO = 0x8004667E Global Const $FIONREAD = 0x4004667F Global Const $FIOASYNC = 0x8004667D Global Const $SIOCSHIWAT = 0x80047300 Global Const $SIOCGHIWAT = 0x80047301 Global Const $SIOCSLOWAT = 0x80047302 Global Const $SIOCGLOWAT = 0x80047303 Global Const $SIOCATMARK = 0x40047307 ;max backlog for listen() Global Const $SOMAXCONN = 0x7fffffff ;flags for send(to) Global Const $MSG_DONTROUTE = 4 Global Const $MSG_OOB = 1 Global $hDLL_WS2_32 = 0 Func _WSAStartup() If $hDLL_WS2_32 = 0 Then $hDLL_WS2_32 = DllOpen("ws2_32.dll") If $hDLL_WS2_32 = -1 Then $hDLL_WS2_32 = 0 Return 0 EndIf If TCPStartup() = 0 Then ;TCPStartup() is equal to WSAStartup function DllClose($hDLL_WS2_32) $hDLL_WS2_32 = 0 Return 0 EndIf EndIf Return 1 EndFunc ;==>_WSAStartup Func _WSACleanup() If $hDLL_WS2_32 <> 0 Then TCPShutdown() ;TCPShutdown() is equal to WSACleanup function DllClose($hDLL_WS2_32) $hDLL_WS2_32 = 0 EndIf Return 1 EndFunc ;==>_WSACleanup Func _setsockopt($iSocket, $iLevel, $iOptName, $tOptVal) Local $iOptLen = DllStructGetSize($tOptVal) Local $aRet = DllCall($hDLL_WS2_32, "int", "setsockopt", "uint", $iSocket, "int", $iLevel, "int", $iOptName, "struct*", $tOptVal, "int", $iOptLen) Return $aRet[0] EndFunc ;==>_setsockopt Func _getsockopt($iSocket, $iLevel, $iOptName, ByRef $tOptVal) Local $iOptLen = DllStructGetSize($tOptVal) Local $aRet = DllCall($hDLL_WS2_32, "int", "setsockopt", "uint", $iSocket, "int", $iLevel, "int", $iOptName, "struct*", $tOptVal, "int", $iOptLen) Return $aRet[0] EndFunc ;==>_getsockopt Func _socket($AF = $AF_INET, $SocketType = $SOCK_STREAM, $Protocol = $IPPROTO_TCP) ; AF_INET, SOCK_STREAM, IPPROTO_TCP Local $aRet = DllCall($hDLL_WS2_32, "int", "socket", "int", $AF, "int", $SocketType, "int", $Protocol) Return $aRet[0] EndFunc ;==>_socket Func _closesocket($iSocket) Local $aRet = DllCall($hDLL_WS2_32, "int", "closesocket", "UINT", $iSocket) Return $aRet[0] EndFunc ;==>_closesocket ;shutdown() allows you to cut off communication in a certain direction, or both ways (just like closesocket() does.) ;0 Further receives are disallowed ;1 Further sends are disallowed ;2 Further sends and receives are disallowed (like closesocket()) ;It's important to note that shutdown() doesn't actually close the file descriptor — it just changes ;its usability. To free a socket descriptor, you need to use closesocket(). Func _shutdown($iSocket, $iHow) Local $aRet = DllCall($hDLL_WS2_32, "int", "shutdown", "UINT", $iSocket, "int", $iHow) Return $aRet[0] EndFunc ;==>_shutdown Func _bind($iSocket, $sIP, $iPort) Local $tSockAddr_In = DllStructCreate($tagSockAddr_In) Local $pSockAddr_In = DllStructGetPtr($tSockAddr_In) Local $iSizeSockAddr_In = DllStructGetSize($tSockAddr_In) DllStructSetData($tSockAddr_In, "sin_family", $AF_INET) DllStructSetData($tSockAddr_In, "sin_port", _htons($iPort)) DllStructSetData($tSockAddr_In, "sin_addr", _inet_addr($sIP)) Local $aRet = DllCall($hDLL_WS2_32, "int", "bind", "UINT", $iSocket, "struct*", $pSockAddr_In, "int", $iSizeSockAddr_In) Return $aRet[0] EndFunc ;==>_bind Func _connect($iSocket, $sIP, $iPort) Local $tSockAddr_In = DllStructCreate($tagSockAddr_In) Local $iSizeSockAddr_In = DllStructGetSize($tSockAddr_In) DllStructSetData($tSockAddr_In, "sin_family", $AF_INET) DllStructSetData($tSockAddr_In, "sin_port", _htons($iPort)) DllStructSetData($tSockAddr_In, "sin_addr", _inet_addr($sIP)) Local $aRet = DllCall($hDLL_WS2_32, "int", "connect", "UINT", $iSocket, "struct*", $tSockAddr_In, "int", $iSizeSockAddr_In) Return $aRet[0] EndFunc ;==>_connect Func _listen($iSocket, $iBacklog = $SOMAXCONN) Local $aRet = DllCall($hDLL_WS2_32, "int", "listen", "UINT", $iSocket, "int", $iBacklog) Return $aRet[0] EndFunc ;==>_listen Func _accept($iSocket, ByRef $sIP, ByRef $iPort) Local $tAddr = DllStructCreate($tagSockAddr_In) Local $aRet = DllCall($hDLL_WS2_32, "UINT", "accept", "UINT", $iSocket, "struct*", $tAddr, "int*", DllStructGetSize($tAddr)) $iPort = _ntohs(DllStructGetData($tAddr, 2)) $sIP = _inet_ntoa(DllStructGetData($tAddr, 3)) Return $aRet[0] EndFunc ;==>_accept Func _select(ByRef $tReadFds, $iTimeout) Local $tTimeout = DllStructCreate($tagTimeVal) DllStructSetData($tTimeout, "tv_sec", Floor($iTimeout / 1000)) DllStructSetData($tTimeout, "tv_usec", ($iTimeout - DllStructGetData($tTimeout, "tv_sec") * 1000) * 1000) Local $aRet = DllCall($hDLL_WS2_32, "int", "select", "int", 0, "struct*", $tReadFds, "ptr", 0, "ptr", 0, "struct*", $tTimeout) Return $aRet[0] ;-1 = error; 0 = timeout; else data! EndFunc ;==>_select Func _selectEx($pReadFds, $pWriteFds, $pExceptFds, $iTimeout) Local $tTimeout = DllStructCreate($tagTimeVal) DllStructSetData($tTimeout, "tv_sec", Floor($iTimeout / 1000)) DllStructSetData($tTimeout, "tv_usec", ($iTimeout - DllStructGetData($tTimeout, "tv_sec") * 1000) * 1000) Local $aRet = DllCall($hDLL_WS2_32, "int", "select", "int", 0, "ptr", $pReadFds, "ptr", $pWriteFds, "ptr", $pExceptFds, "struct*", $tTimeout) Return $aRet[0] ;-1 = error; 0 = timeout; else data! EndFunc ;==>_selectEx Func _FD_ZERO(ByRef $tFd_set) DllStructSetData($tFd_set, "fd_count", 0) EndFunc ;==>_FD_ZERO Func _FD_SET($iSock, ByRef $tFd_set) Local $iCount = DllStructGetData($tFd_set, "fd_count") For $i = 0 To $iCount - 1 If DllStructGetData($tFd_set, "fd_Array", $i + 1) = $iSock Then ExitLoop EndIf Next If $i = $iCount Then If $iCount < $FD_SETSIZE Then DllStructSetData($tFd_set, "fd_array", $iSock, $i + 1) DllStructSetData($tFd_set, "fd_count", $iCount + 1) EndIf EndIf EndFunc ;==>_FD_SET Func _FD_CLR($iSock, ByRef $tFd_set) Local $iCount = DllStructGetData($tFd_set, "fd_count") For $i = 0 To $iCount - 1 If DllStructGetData($tFd_set, "fd_array", $i + 1) = $iSock Then While ($i < $iCount - 1) DllStructSetData($tFd_set, "fd_array", DllStructGetData($tFd_set, "fd_array", $i + 2), $i + 1) $i += 1 WEnd EndIf DllStructSetData($tFd_set, "fd_count", $iCount - 1) ExitLoop Next EndFunc ;==>_FD_CLR Func _FD_ISSET($iSock, ByRef $tFd_set) Local $aRet = DllCall($hDLL_WS2_32, "int", "__WSAFDIsSet", "UINT", $iSock, "struct*", $tFd_set) Return $aRet[0] EndFunc ;==>_FD_ISSET Func _send($iSocket, ByRef $tBuffer, $iFlags = 0) Local $iLen = DllStructGetSize($tBuffer) Local $aRet = DllCall($hDLL_WS2_32, "int", "send", "int", $iSocket, "struct*", $tBuffer, "int", $iLen, "int", $iFlags) Return $aRet[0] EndFunc ;==>_send Func _sendto($iSocket, ByRef $tBuffer, ByRef $tTo, $iFlags = 0) Local $iLen = DllStructGetSize($tBuffer) Local $iLenTo = DllStructGetSize($tTo) Local $aRet = DllCall($hDLL_WS2_32, "int", "sendto", "int", $iSocket, "struct*", $tBuffer, "int", $iLen, "int", $iFlags, "struct*", $tTo, "int", $iLenTo) Return $aRet[0] EndFunc ;==>_sendto Func _recv($iSocket, ByRef $tBuffer, $iFlags = 0) Local $iLen = DllStructGetSize($tBuffer) Local $aRet = DllCall($hDLL_WS2_32, "int", "recv", "uint", $iSocket, "struct*", $tBuffer, "int", $iLen, "int", $iFlags) Return $aRet[0] EndFunc ;==>_recv Func _recvfrom($iSocket, ByRef $tBuffer, ByRef $tFrom, $iFlags = 0) Local $iLen = DllStructGetSize($tBuffer) Local $iLenFrom = DllStructGetSize($tFrom) Local $aRet = DllCall($hDLL_WS2_32, "int", "recvfrom", "uint", $iSocket, "struct*", $tBuffer, "int", $iLen, "int", $iFlags, "struct*", $tFrom, "int", $iLenFrom) Return $aRet[0] EndFunc ;==>_recvfrom Func _inet_addr($sIP) Local $aRet = DllCall($hDLL_WS2_32, "ULONG", "inet_addr", "str", $sIP) Return $aRet[0] EndFunc ;==>_inet_addr Func _inet_ntoa($pIn_Addr) ;only IPv4 (deprecated) --> use _inet_ntop() instead Local $aRet = DllCall($hDLL_WS2_32, "str", "inet_ntoa", "ptr", $pIn_Addr) Return $aRet[0] EndFunc ;==>_inet_ntoa Func _inet_ntop($pIn_Addr, $iFamily = $AF_INET) ;IPv4 and IPv6 --> Vista and above Local $tBuffer = DllStructCreate("char[46]") ;16 for IPv4, 46 for IPv6 Local $aRet = DllCall($hDLL_WS2_32, "str", "inet_ntop", "int", $iFamily, "ptr", $pIn_Addr, "struct*", $tBuffer, "int", DllStructGetSize($tBuffer)) Return DllStructGetData($tBuffer, 1) EndFunc ;==>_inet_ntop ;host byte order to network byte order (double) Func _htond($value) Local $aRet = DllCall($hDLL_WS2_32, "UINT64", "htond", "double", $value) Return $aRet[0] EndFunc ;==>_htond ;host byte order to network byte order (float) Func _htonf($value) Local $aRet = DllCall($hDLL_WS2_32, "UINT", "htonf", "float", $value) Return $aRet[0] EndFunc ;==>_htonf ;host byte order to network byte order (long) Func _htonl($value) Local $aRet = DllCall($hDLL_WS2_32, "ULONG", "htonl", "ULONG", $value) Return $aRet[0] EndFunc ;==>_htonl ;host byte order to network byte order (long long) Func _htonll($value) Local $aRet = DllCall($hDLL_WS2_32, "UINT64", "htonll", "UINT64", $value) Return $aRet[0] EndFunc ;==>_htonll ;host byte order to network byte order (short) Func _htons($iPort) Local $aRet = DllCall($hDLL_WS2_32, "USHORT", "htons", "USHORT", $iPort) Return $aRet[0] EndFunc ;==>_htons ;network byte order to host byte order (double) Func _ntohd($value) Local $aRet = DllCall($hDLL_WS2_32, "double", "ntohd", "UINT64", $value) Return $aRet[0] EndFunc ;==>_ntohd ;network byte order to host byte order (float) Func _ntohf($value) Local $aRet = DllCall($hDLL_WS2_32, "float", "ntohf", "UINT", $value) Return $aRet[0] EndFunc ;==>_ntohf ;network byte order to host byte order (long) Func _ntohl($iNetLong) Local $aRet = DllCall($hDLL_WS2_32, "ULONG", "ntohl", "ULONG", $iNetLong) Return $aRet[0] EndFunc ;==>_ntohl ;network byte order to host byte order (long long) Func _ntohll($value) Local $aRet = DllCall($hDLL_WS2_32, "UINT64", "ntohll", "UINT64", $value) Return $aRet[0] EndFunc ;==>_ntohll ;network byte order to host byte order (short) Func _ntohs($iNetShort) Local $aRet = DllCall($hDLL_WS2_32, "USHORT", "ntohs", "USHORT", $iNetShort) Return $aRet[0] EndFunc ;==>_ntohs Func _WSAGetLastError() Local $aRet = DllCall($hDLL_WS2_32, "int", "WSAGetLastError") Return $aRet[0] EndFunc ;==>_WSAGetLastError Func _GetLocalPort($iSocket) ;funkey Local $tagIN_ADDR = "ulong S_addr;" Local $tagSockAddr_In = "short sin_family;ushort sin_port;ptr sin_addr;char sin_zero[8];" Local $tIn_Addr = DllStructCreate($tagIN_ADDR) Local $tName = DllStructCreate($tagSockAddr_In) DllStructSetData($tName, "sin_addr", DllStructGetPtr($tIn_Addr)) Local $aRes = DllCall($hDLL_WS2_32, "int", "getsockname", "uint", $iSocket, "struct*", $tName, "int*", 512) Local $aRes2 = DllCall($hDLL_WS2_32, "ushort", "ntohs", "ushort", DllStructGetData($tName, 2)) Return $aRes2[0] EndFunc ;==>_GetLocalPort Func _getsockname($iSocket) Local $tIn_Addr = DllStructCreate($tagIN_ADDR) Local $tName = DllStructCreate($tagSockAddr_In) DllStructSetData($tName, "sin_addr", DllStructGetPtr($tIn_Addr)) Local $aRes[2] Local $aRet = DllCall($hDLL_WS2_32, "int", "getsockname", "uint", $iSocket, "struct*", $tName, "int*", 512) If Not @error And $aRet[0] = 0 Then $aRes[0] = _inet_ntoa(DllStructGetData($tName, "sin_addr")) ;IP address $aRes[1] = _ntohs(DllStructGetData($tName, "sin_port")) ;IP port ;~ $aRes[2] = DllStructGetData($tName, "sin_family") ; always AF_INET !? Return $aRes EndIf Return SetError(1, 0, 0) EndFunc ;==>_getsockname ;More than TCPNameToIP(), returns an array of IP addresses Func _getaddrinfo($sNodeName) Local $pResult, $tAddrInfo, $sIP Local $aRet = DllCall($hDLL_WS2_32, "int", "getaddrinfo", "str", $sNodeName, "ptr", 0, "ptr", 0, "ptr*", 0) $pResult = $aRet[4] Do $tAddrInfo = DllStructCreate($tagAddrInfo, $pResult) Local $tName = DllStructCreate($tagSockAddr_In, DllStructGetData($tAddrInfo, "ai_addr")) $sIP &= _inet_ntoa(DllStructGetData($tName, "sin_addr")) & ";" $pResult = DllStructGetData($tAddrInfo, "ai_next") Until $pResult = 0 _freeaddrinfo($aRet[4]) Return StringSplit(StringTrimRight($sIP, 1), ";", 2) EndFunc ;==>_getaddrinfo Func _freeaddrinfo($pAddrInfo) DllCall($hDLL_WS2_32, "none", "freeaddrinfo", "ptr", $pAddrInfo) EndFunc ;==>_freeaddrinfo Func _ioctlsocket($iSocket, $iCmd, $iArg) Local $aRet = DllCall($hDLL_WS2_32, "int", "ioctlsocket", "uint", $iSocket, "long", $iCmd, "ULONG*", $iArg) Return $aRet[0] EndFunc ;==>_ioctlsocket Func _TCPConnectEx($sIP, $iRemPort, $iRcvTimeOut = 0, $iSendTimeOut = 0, $iLocPort = -1) Local $tTimeVal, $iSockError, $iBind, $iConnect, $aIP[1] Local $iSock = _socket($AF_INET, $SOCK_STREAM, $IPPROTO_TCP) If $iRcvTimeOut > 0 Then $tTimeVal = DllStructCreate("DWORD timeout") DllStructSetData($tTimeVal, "timeout", $iRcvTimeOut) $iSockError = _setsockopt($iSock, $SOL_SOCKET, $SO_RCVTIMEO, $tTimeVal) If $iSockError Then _closesocket($iSock) Return SetError(1, _WSAGetLastError(), 0) EndIf EndIf If $iSendTimeOut > 0 Then $tTimeVal = DllStructCreate("DWORD timeout") DllStructSetData($tTimeVal, "timeout", $iSendTimeOut) $iSockError = _setsockopt($iSock, $SOL_SOCKET, $SO_SNDTIMEO, $tTimeVal) If $iSockError Then _closesocket($iSock) Return SetError(2, _WSAGetLastError(), 0) EndIf EndIf If $iLocPort >= 0 Then $iBind = _bind($iSock, @IPAddress1, $iLocPort) If $iBind Then _closesocket($iSock) Return SetError(3, _WSAGetLastError(), 0) EndIf EndIf If _IsValidIP($sIP) Then $aIP[0] = $sIP Else $aIP = _getaddrinfo($sIP) EndIf $iConnect = _connect($iSock, $aIP[0], $iRemPort) If $iConnect Then _closesocket($iSock) Return SetError(4, _WSAGetLastError(), 0) EndIf Return $iSock EndFunc ;==>_TCPConnectEx Func _IsValidIP($sIP) Local $aIP = StringSplit($sIP, ".") If $aIP[0] <> 4 Then Return SetError(1, 0, 0) For $x = 1 To $aIP[0] If $aIP[$x] < 0 Or $aIP[$x] > 255 Then Return SetError(2, 0, 0) Next Return 1 EndFunc ;==>_IsValidIP TCPConnectTimeout & socket UDF.rar

Hi. I'm a teacher and I do a lot of tutorials and other presentations on my computer. I've developed a tool using AutoIt and Adobe AIR to display all the shortcuts I use while I'm presenting. According to the forum rules this would mean that I've developed a keylogger, so I can't show any of the code, but I'm still hoping someone will help me solve an issue I'm having - a memory leak (or at least I think that's it). I can see the application is taking up more and more memory, but it never goes super crazy. I think it was at 25 MB at one point and that was it. However I see that the longer the application is running less responsive it is. It doesn't capture all the events, or it simply lags. I'm using AssocArrays and _MouseOnEvent UDFs, _WinAPI_SetTimer, _WinAPI_SetWindowsHookEx, _Singleton and TCP. I've done some research before posting this and I know there are some issues in special cases, but all solutions were "code specific". Since I can't post any of the code I couldn't respond in those threads. Other than that it really doesn't seem to be the problem with any of the UDFs, so my question is: Is this a memory leak? If so how can I find it and remove it? What to do to avoid it in the future. I understand that declaring variables over and over (something in the timer) may be the cause of this, so according to what I've read on the forum I've changed the variables to Global and moved them outside the functions. That way they are only declared once, and then only values are being reassigned. That unfortuantly didn't help. Is there anything else I could do or look for? BTW - I've used Adobe AIR to create a nice UI. If someone want's to create something similar UEZ was kind enough to share his code of creating such GUI with nice antialiased labels. https://www.autoitscript.com/forum/topic/178366-adobe-air-like-window/#comment-1280587

Hello, I have a problem, I downloaded example of TCP Server and Client, but client doesn't work, It shows TCPConnect 10060 error (timeout), I tried to turn on two servers, I think server work, because one server show 10048 error(Address already in use) I don't know why it doesn't work, I edited that script, but it doesn't work still. I tried TCPConnect and TCPAccept from AutoIt3\Examples\Helpfile, but TCPConnect shows error 10060(timeout)... Anybody knows how to fix it? Thanks ; SERVER #include <Array.au3> TCPStartup() Dim $Socket_Data[1] $Socket_Data[0] = 0 $Listen = TCPListen(@IPAddress1, 1018, 500) If @error Then ConsoleWrite('!-->['&@Hour&":"&@MIN&":"&@SEC&'] TCPListen error. ( ' & @error & ' )' & @CRLF) Exit EndIf While 1 For $x = $Socket_Data[0] To 1 Step -1 $Recv = TCPRecv($Socket_Data[$x], 1000000) If $Recv Then MsgBox(0, 'Client Number ' & $x & ' with connected socket identifier ' & $Socket_Data[$x], "["&@Hour&":"&@MIN&":"&@SEC&"]"&' Recived msg from Client: ' & @CRLF & $Recv, 5) TCPSend($Socket_Data[$x], 'bye') TCPCloseSocket($Socket_Data[$x]) _ArrayDelete($Socket_Data, $x) $Socket_Data[0] -= 1 EndIf Next _Accept() WEnd Func _Accept() Local $Accept = TCPAccept($Listen) If $Accept <> -1 Then _ArrayAdd($Socket_Data, $Accept) $Socket_Data[0] += 1 EndIf EndFunc ;==>_Accept exit; CLIENT $Connected = False TCPStartup() ; Start TCP. $timespentconnecting = TimerInit( ) Do $Socket = TCPConnect(@IPAddress1, 1018) ; Connect to server. $nERROR = @error ; TCPConnect @error. If not $nERROR Then ; If client connected to server. $Connected = True Else ; If TCPConnect didn't connected to server. ConsoleWrite( "["&@Hour&":"&@MIN&":"&@SEC&"] TCPConnect error. {CODE:" & $nERROR & "}"&@CRLF ) ; Show error. EndIf sleep(100) ; Sleep 0.1 secounds. Until $Connected = True or TimerDiff( $timespentconnecting ) > 10000 ; If client connected or timer > 10 secounds, stop trying connect to server. If $Connected = False then exit ; If client didn't connected to server, exit. TCPSend($Socket, 'Hi there. My computer name is' & ", " & @ComputerName & ", and its drive serial is " & DriveGetSerial(@HomeDrive)); Send to server data. Do ; Loop until client recives data from server. $Recv = TCPRecv($Socket, 1000000) ; Recive data from server. Until $Recv ; Stop looping when data recived from server. MsgBox(0, "["&@Hour&":"&@MIN&":"&@SEC&"] Recived from server:", $Recv); Show recived data from server. Exit(0) ; Exit.

Hi. I'm working on a script to "round robin" through a list of Terminal Servers. the PC's host names are like "PC1", "PC2", "PC3", ... at each site, so I just use the "number suffix" to determine, which TS server shall be tried for *THIS* PC first, 2nd, 3rd (done, no problem). The issue is showing up, when a TS-Server is *NOT* available. Setting opt("tcptimeout",50) doesn't speed up the process, but I don't think, this is autoit related: it always takes quite a number of seconds to get the result, also with several other tools I've tried, that make use of the Win network APIs. So I suspect, that it's the Windows TCP/IP stack, that's the constraint (WinXP SP3 and Win7, x86 and x64). Question: Is there some "CMDline single EXE tool" / "some other approach", to get the up / open / closed status for an IP:TCPport pair instantly? nmap.exe is dependant on several files coming with it's installation (so fileinstall() would have to install quite a bunch of files), and it also doesn't return valuable exit codes representing it's results, otherwise fileinstall() and this line would be my friend: nmap -PS 192.168.188.111 -p 3389 There are quite a lot of very fast GUI IP scanning tools, but I couldn't find one for command line (ab-)use so far. Any suggestions appreciated, as I don't want to re-invent the wheel ;-) Regards, Rudi. Func CheckConnect($_IP, $_Port) Local $Err TCPStartup() ; Set Some reusable info ;-------------------------- Local $ConnectedSocket, $szData Opt("TCPTimeout", 50) ; Initialize a variable to represent a connection ;================================================== $ConnectedSocket = -1 ;Attempt to connect to SERVER at its IP and PORT specified ;=========================================================== $Socket = TCPConnect($_IP, $_Port) $Err = @error TCPShutdown() If $Err Then Switch $Err Case 1 SetError($Err) Return ("IP-Address invalid: " & $_IP & ":" & $_Port) Case 2 SetError($Err) Return ("Port-Addresse invalid: " & $_IP & ":" & $_Port) Case Else $Ping = Ping($_IP) If $Ping Then SetError($Err) Return ("PING time = " & $Ping & " - unknown error occured: " & $_IP & ":" & $_Port) Else SetError($Err) Return ("host not PINGable! ") EndIf EndSwitch Else Return True EndIf EndFunc ;==>CheckConnect