Section 17.7. Socket Errors

   


17.7. Socket Errors

A number of errno values occur only with sockets. Here is a list of socket-specific errors and a short description of each:

 EADDRINUSE 


A requested address is already in use and cannot be reassigned.

 EADDRNOTAVAIL 


An unavailable address was requested.

 EAFNOSUPPORT 


An unsupported address family was specified.

 ECONNABORTED 


The connection was aborted by software.

 ECONNREFUSED 


The remote machine refused the connection attempt.

 ECONNRESET 


The connection was reset by the remote end. This usually indicates that the remote machine was restarted.

 EDESTADDRREQ 


An attempt was made to send data over a socket without providing the destination address. This can occur only for datagram sockets.

 EHOSTDOWN 


The remote host is not on the network.

 EHOSTUNREAD 


The remote host cannot be reached.

 EISCONN 


A connection is already established for the socket.

 EMSGSIZE 


The data being sent through a socket is too large to be sent as a single, atomic message.

 ENETDOWN 


The network connection is down.

 ENETRESET 


The network was reset, causing the connection to be dropped.

 ENETUNREACH 


The specified network cannot be reached.

 ENOBUFS 


Not enough buffer space is available to handle the request.

 ENOPROTOOPT 


An attempt to set an invalid option was made.

 ENOTCONN 


A connection must be established before the operation can succeed.

 ENOTSOCK 


A socket-specific operation was attempted on a file descriptor that references a file other than a socket.

 EPFNOSUPPORT 


An unsupported protocol family was specified.

 EPROTONOSUPPORT 


A request was made for an unsupported protocol.

 EPROTOTYPE 


An inappropriate protocol type was specified for the socket.

 ESOCKTNOSUPPORT 


An attempt was made to create an unsupported socket type.

 ETIMEDOUT 


The connection timed out.


       
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    Linux Application Development
    Linux Application Development (paperback) (2nd Edition)
    ISBN: 0321563220
    EAN: 2147483647
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