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If the signal handler performs a normal return, the interrupted function call will seem to have returned the error condition. Developer suggestions: If you have a network analyzer available, you can quickly check if the destination port number and host address are what you expect. Occasionally the error code could have more variables in Wsaeusers formatting .This further number and letter code are the location of the storage regions in which the instructions are stored at WSAEBADF (10009) Bad file descriptor.

Typically, though, WinSock generates WSAENETUNREACH when it receives a "host unreachable" ICMP message from a router instead of WSAEHOSTUNREACH. WinSock functions: connect(), sendto(), FD_CONNECT Additional functions: It seems odd that the v1.1 specification doesn't ascribe this error to the function bind(). after failed calls to inet_addr() or gethostbyname()), then simply test your address value for zero before you pass it to sendto(). This will verify that the destination network is functioning.

Winsock Error Windows 7

If the hostname resolution uses a local host table, it's possible you resolved to an obsolete address. This error apparently also takes the place of WSAEPFNOSUPPORT (which means "protocol family not supported"), since that error is not listed for socket() in the v1.1 WinSock specification. WinSock description: No equivalent.

WinSock functions: WSAEFAULT (10014) Bad address. WinSock description: Similar to Berkeley & Microsoft C, but in reference to sockets rather than file handles (although the descriptions in the v1.1 specification say "no more file descriptors available"). WinSock description: Same as Berkeley. Wsagetlasterror If an application sends a UDP packet to a host/port that does not have a datagram socket "listening," the network system may respond by sending back an ICMP Port Unreachable packet

Two functions that are conspicuously absent from the current function list above are shutdown() and close socket(). Wsaeconnaborted 10053 Let the network system assign the default local IP address by referencing INADDR_ANY in the sin_addr field of a sockaddr_in structure input to bind(). Typically their descriptions are similar. These errors might be reported on any function that does network I/O (e.g.

For protocol and services resolution, the name or number was not found in the respective database. Winsock Error 10060 WinSock description: Same as Berkeley. "You can't make a silk purse from a sow's ear." Detailed descriptions: accept(), listen(): socket is not of type that supports connection-oriented service. SO_ACCEPTCONN, SO_DONTLINGER, SO_KEEPALIVE, SO_LINGER, SO_OOBINLINE and TCP_NODELAY are not supported on sockets of type SOCK_DGRAM. They signal unusual error conditions for which there's no WinSock error equivalent.

  1. However, it also occurs when an application passes an invalid pointer value.
  2. Berkeley description: The host you were connected to crashed and rebooted.
  3. WinSock description: No equivalent.
  4. Some of these neglected error values are among those mentioned earlier that provide "finer resolution" on different WinSock implementations.
  5. SO_ACCEPTCONN, SO_ERROR, SO_TYPE: are read-only options, so they work with getsockopt(), but not with setsockopt() Developer suggestions: Check the parameters.
  6. Try a "traceroute" to the host you were connected to.
  7. Developer suggestions: Did you close a socket inadvertently in one part of an application without keeping another part notified?
  8. However, some WinSocks fail with WSAEINVAL you call connect() a second time (or subsequent) on a non-blocking socket.

Wsaeconnaborted 10053

You need to call htons() to translate a constant value to network byte order before assigning it to the sin_port field in the sockaddr structure. The automatically window dialogs affected computer’s performance, causing computer slow down, "play dead" in period, blue screen and system trash. Winsock Error Windows 7 Most of the text comes from the output from the "man errno" command on Unix. Wsa Error Codes This error occurs if you specifically reference a protocol that isn't part of the address family you also reference.

For more information on debugging problems, see Chapter 13, "Debugging." Errorless Functions Eight of the forty-six functions in the Windows Sockets API are not referenced in any of the "WinSock function" User suggestions: Chances are the network subsystem is misconfigured or inactive. In fact, on occasion you can benefit if the WinSock implementation returns these other errors. WinSock description: Same as Berkeley. Winsock Error 10061


Berkeley description: The attempted operation is not supported for the type of object referenced. Wsaeconnrefused We took the text of the errno manual page in BSD 4.3, filled in gaps and embellished, completing the information. WSAGetLastError() and WSAIsBlocking() cannot fail.

If so, treat this as a non-fatal error and ignore it, if possible.

In this case, the 2nd application will fail with WSAEADDRINUSE. The v1.1 specification also lists connect(), although it does not allocate a descriptor. An invalid value was given for one of the arguments to a function. Wsaewouldblock The number is a Winsock error number.

Berkeley description: Only one usage of each address is normally permitted. Winsock functions: bind(), connect(), listen(), FD_CONNECT WSAEADDRNOTAVAIL (10049) Cannot assign requested address. Want support for the WiX Toolset? Do a traceroute to try to determine where the failure occurs along the route between your host and the destination host.

WinSock description: Same as Berkeley for host resolution. The missing functions are getprotobyname(), getprotobynumber(), getservbyname(), and getservbyport(). WSAEPROTONOSUPPORT (10043) Protocol not supported. WinSock functions: bind(), connect(), sendto(), socket(), FD_CONNECT See also: WSAEPROTOTYPE WSAEALREADY (10037) Operation already in progress.

WinSock functions: listen(), FD_CONNECT Additional functions: connect(), sendto() WSAELOOP (10062) Too many levels of symbolic links. Check your subnet mask. try to ping the server(s)). However, there's little distinction between WSAEALREADY and WSAEINVAL since a WinSock DLL cannot tell the difference between an asynchronous operation that has been cancelled and one that was never valid.

Developer suggestions: for protocols and services consider using a hard-coded value for the protocol number or service port number in case your resolution attempt fails, and you can have your cake WinSock functions: accept(), bind(), connect(), listen(), send(), sendto(), socket(), WSAAsyncGetHostByAddr(), WSAAsyncGetHostByName(), WSAAsyncGetProtoByName(), WSAAsyncGetProtoByNumber(), WSAAsyncGetServByName(), WSAAsyncGetServByPort(), FD_CONNECT Additional functions: Any other functions that use network system buffer space, like the "database functions", before calling connect() or accept()). WinSock functions: WSAESHUTDOWN (10058) Cannot send after socket shutdown.

An application attempted an input/output network function call before establishing an association with a remote socket (i.e. Detailed description: send() & sendto(): the requested address is a broadcast address, but the appropriate flag was not set (i.e. In some cases these errors are platform dependent. Can you ping that hostname?

WinSock description: Same as Berkeley TCP/IP scenario: In TCP terms (datastream sockets), it means an attempt to connect (by sending a TCP SYN packet) caused the destination host to respond to WinSock description: Same as Berkeley. User suggestions: Did you enter a destination hostname? Berkeley description: A socket operation was attempted to an unreachable host.

Any of the WinSock name resolution functions can fail with this error. WinSock functions: accept(), bind(), closesocket(), connect(), gethostbyaddr(), gethostbyname(), gethostname(), getpeername(), getprotobyname(), getprotobynumber(), getservbyname(), getservbyport(), getsockname(), getsockopt(), ioctlsocket(), listen(), recv(), recvfrom(), select(), send(), sendto(), setsockopt(), shutdown(), socket(), WSAAsyncGetHostByAddr(), WSAAsyncGetHostByName(), WSAAsyncGetProtoByName(), WSAAsyncGetProtoByNumber(), WSAAsyncGetServByName(),