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Windows Socket Error Value

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If buflen is present, it specifies the maximum length of the buffer used to receive the option in, and this buffer is returned as a string. The Winsock API does not provide any way to select specific name resolution protocols, server address, or record type. [email protected] Pat Bonner Hewlett-Packard [email protected] Derek Brown FTP Software [email protected] Malcolm Butler ICL [email protected] Mike Calbaum Frontier Technologies [email protected] Isaac Chan Microsoft Corporation [email protected] Khoji Darbani Informix [email protected] Nestor Fesas Hughes The Windows Sockets errors are listed in alphabetical order below (they're cross-referenced in a list in numerical order further below). navigate to this website

Check that the WINSOCK.DLL file is from the same vendor as your underlying protocol stack. WinSock functions: WSAENETDOWN (10050) Network is down. Check the destination address you are using. This error also could occur if an application opens and closes sockets often, but doesn't properly close the sockets (so it leaves them open, as 'orphans'). https://msdn.microsoft.com/en-us/library/windows/desktop/ms740668(v=vs.85).aspx

Socket Error 10038

The requested address is not valid in its context. You cannot mix and match. (WINSOCK DLLs must be supplied by the same vendor that provided your underlying protocol stack).You cannot use more than one Winsock implementation simultaneously.If you have more You cannot mix and match (WINSOCK DLLs must be supplied by the same vendor that provided your underlying protocol stack). Generically, the error means the network system has run out of socket handles.

  1. For instance, this error will occur if you try to run two applications that have FTP servers.
  2. By passing None as the value of host and port, you can pass NULL to the underlying C API.
  3. WinSock functions: WSAEWOULDBLOCK (10035) Resource temporarily unavailable.
  4. There is a socket flag to set, in order to prevent this, socket.SO_REUSEADDR: s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) s.bind((HOST, PORT)) the SO_REUSEADDR flag tells the kernel
  5. The remote server may be temporarily or permanently inaccessible (try again later).

socket.getaddrinfo(host, port[, family[, socktype[, proto[, flags]]]])¶ Translate the host/port argument into a sequence of 5-tuples that contain all the necessary arguments for creating a socket connected to that service. However, it is interchangeable in most cases, and all Windows Sockets functions that return one of these messages also specify WSAEAFNOSUPPORT. Winsock only allows a single blocking operation to be outstanding per task (or thread), and if you make any other function call (whether or not it references that or any other Socket Error 10053 Otherwise, the value SOCKET_ERROR (-1) is returned and a specific error number can be retrieved by calling the WSAGetLastError function.

An example of an asymmetric protocol is the Internet file transfer protocol, FTP. Socket Error Codes Linux The argument addr is a result parameter that is filled in with the address of the connecting entity, as known to the communications layer. In a multithreaded system, the application is also responsible for coordinating access to the object using appropriate synchronization mechanisms. WSA_QOS_EPSFILTERSPEC 11028 Invalid QoS provider-specific filterspec.

User suggestions: Don't try running two of the same types of server applications on the same machine. Socket Error 10049 Either the application has not called WSAStartup or WSAStartup failed. SO_ACCEPTCONN, SO_DONTLINGER, SO_KEEPALIVE, SO_LINGER, SO_OOBINLINE and TCP_NODELAY are not supported on sockets of type SOCK_DGRAM. It would also timeout if a (FIN)ish TCP packet is not ACK'd (and even if the FIN is ACK'd, it will eventually timeout if a FIN is not returned).

Socket Error Codes Linux

The flags argument can be one or several of the AI_* constants, and will influence how results are computed and returned. http://www.sockets.com/err_lst1.htm socket.accept()¶ Accept a connection. Socket Error 10038 This is useful with select.select(). Socket Error 10054 Connection Reset By Peer TCP/IP scenario: A connection will timeout if the local system doesn't receive an (ACK)nowledgement for data sent.

LRS_SELECT_ERR 9018 A SELECT related error occurred. useful reference New in version 2.4. To avoid potential problems, applications must adhere to the use of the FD_XXX macros to set, initialize, clear, and check the fd_set structures. recv(), recvfrom(), send(), sendto(): MSG_OOB was specified, but the socket is not of type SOCK_STREAM Developer suggestions: don't do that. Windows Socket Error Windows 10

On machines where the host byte order is the same as network byte order, this is a no-op; otherwise, it performs a 4-byte swap operation. The backlog argument specifies the maximum number of queued connections and should be at least 0; the maximum value is system-dependent (usually 5), the minimum value is forced to 0. WSAEDISCON 10101 Graceful shutdown in progress. my review here While nothing in the Windows Sockets API prevents an implementation from using regular file handles to identify sockets, nothing requires it either.

The optional flags argument has the same meaning as for recv() above. Winsock Error 10054 Fix An application used a Windows Sockets function that directly maps to a Windows function. A communication domain is an abstraction introduced to bundle common properties of threads communicating through sockets.

Note For best match with hardware and network realities, the value of bufsize should be a relatively small power of 2, for example, 4096.

for functions that use h_errno in the C API, including gethostbyname_ex() and gethostbyaddr(). In each routine it is indicated that the header file winsock.h must be included. This is not a temporary error. Wsagetlasterror 0 The socket type should be SOCK_STREAM (the default), SOCK_DGRAM or perhaps one of the other SOCK_ constants.

This is usually caused by one or more of the function pointers being NULL. before calling connect() or accept()). For instance, if the length of a struct sockaddr is not equivalent to the sizeof(struct sockaddr). http://pdctoday.com/socket-error/windows-socket-error-on-api.php An attempt was made to access a socket in a way forbidden by its access permissions.

Any function that takes a socket as an input parameter--except close socket()--could potentially fail with this error. Socket Objects¶ Socket objects have the following methods. WinSock description: Same as Berkeley. In other words, the Winsock you are using is not supported by the program you are using.

So, for example, you can expect this error if a WinSock implementation doesn't support socket type SOCK_RAW within the Internet address family (AF_INET). On error, an exception is raised, and there is no way to determine how much data, if any, was successfully sent.