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In Chapter 10, "Support Routines" we tell you how to retrieve and report errors using WSAGetLastError(). You need to set FORMAT_MESSAGE_FROM_SYSTEM in the dwFlags parameter and pass the error code as the dwMessage parameter. Each message ends with a CRLF. Windows Sockets Error Codes Most Windows Sockets 2 functions do not return the specific cause of an error when the function returns.

Syntax C++ Copy INT WSAAPI WSAStringToAddress( _In_     LPTSTR             AddressString, _In_     INT                AddressFamily, _In_opt_ LPWSAPROTOCOL_INFO lpProtocolInfo, _Out_    LPSOCKADDR         lpAddress, _Inout_  LPINT              lpAddressLength ); Parameters AddressString [in] A pointer to the zero-terminated string that contains the network address WSA_IO_PENDING 997 Overlapped operations will complete later. The Windows function is indicating a problem with one or more parameters. Unsubstantiated Chebyshev Rotation How to handle a senior developer diva who seems unaware that his skills are obsolete?

WSA_QOS_SENDERS 11006 QoS senders. This documentation is archived and is not being maintained. Sign up for the SourceForge newsletter: I agree to receive quotes, newsletters and other information from and its partners regarding IT services and products. more hot questions question feed lang-c about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation

For information on how to handle error codes when porting socket applications to Winsock, see Error Codes - errno, h_errno and WSAGetLastError. This can also result from connect, sendto, WSAConnect, WSAJoinLeaf, or WSASendTo when the remote address or port is not valid for a remote computer (for example, address or port 0). Can indicate a service provider implementation error. An error with the underlying traffic control (TC) API as the generic QoS request was converted for local enforcement by the TC API.

WSA_IO_INCOMPLETE 996 Overlapped I/O event object not in signaled state. Return value The return value indicates the error code for this thread's last Windows Sockets operation that failed. WSA_QOS_EPSFILTERSPEC 11028 Invalid QoS provider-specific filterspec. WSA_QOS_POLICY_FAILURE 11011 QoS policy failure.

Not the answer you're looking for? WSAEINPROGRESS 10036 Operation now in progress. It is initialized to NULL. [4] We are going to call a system API which requires a character buffer of size MAX_PATH. MVP .NET Compact Framework I was afraid of that.

This normally results if the peer application on the remote host is suddenly stopped, the host is rebooted, the host or remote network interface is disabled, or the remote host uses This usually means the local software knows no route to reach the remote host. This may be because the database files (for example, BSD-compatible HOSTS, SERVICES, or PROTOCOLS files) could not be found, or a DNS request was returned by the server with a severe Join them; it only takes a minute: Sign up Get formatted message for WSA error codes up vote 2 down vote favorite 3 i'm using winsock2 in a win32 c++ application.

WSA_QOS_EOBJLENGTH 11022 Invalid QoS object length. We also show you one way to display error strings with our own WSAperror() the sample WinSockx library in Chapter 7. The problem with this is that the user has no idea what to do in response to this error. WSAEMSGSIZE 10040 Message too long.

GetLastError() and GetLastErrorAsString()! » One Trackback/Pingback By Gestion des erreurs avec les sockets en C | Pierre Gradot on 26 Jul 2013 at 6:20 pm […] Dans mon présent article, je This is at best useless and at worst harmful. WSANO_DATA 11004 Valid name, no data record of requested type. And knowing why it failed is the key to finding a remedy or work-around.

We wrap-up with a cross-reference list to use in case you have only the numeric value, not the text name. [Go to Top]

BUSY DEVELOPERS Visual Studio, Windows App Development, WSAEPROVIDERFAILEDINIT 10106 Service provider failed to initialize. Will strerror() work here too? They are not end-user friendly at all.

Where to Get Error Values What Errors to Expect User-fixable Errors Detailed Error Descriptions Errors in Numerical Order The WinSock "WSA" error values are a significant part of the Windows Sockets At least one QoS reserve has arrived. WSA_QOS_NO_SENDERS 11007 No QoS senders. Returned by WSARecv and WSARecvFrom to indicate that the remote party has initiated a graceful shutdown sequence.

WSAENETRESET 10052 Network dropped connection on reset. Too many open sockets. There is absolutely no excuse for such pitiful examples of error messages. Users should check: That the appropriate Windows Sockets DLL file is in the current path.

WSAECONNREFUSED 10061 Connection refused.