connect()

ソケットの接続
int connect (
  SOCKET s,
  const struct sockaddr * name,
  int namelen
);

パラメータ

s

• [in] 接続されていないソケットを指定

name

• [in] 接続先のアドレスをsockaddr構造体で指定

namelen

• [in] パラメータnameの長さを指定

返り値

成功した場合 0 を返しエラーの場合 SOCKET_ERROR を返す

エラー

WSAENOTINITIALISED

• A successful WSAStartup() must occur before using this API.

WSAENETDOWN

• The Windows Sockets implementation has detected that the network subsystem has failed.

WSAEADDRINUSE

• The specified address is already in use.

WSAEINTR

• The (blocking) call was canceled via WSACancelBlockingCall()

WSAEINPROGRESS

• A blocking Windows Sockets call is in progress.

WSAEADDRNOTAVAIL

• The specified address is not available from the local machine.

WSAEAFNOSUPPORT

• Addresses in the specified family cannot be used with this socket.

WSAECONNREFUSED

• The attempt to connect was forcefully rejected.

WSAEDESTADDREQ

• A destination address is required.

WSAEFAULT

• The namelen argument is incorrect.

WSAEINVAL

• The socket is not already bound to an address.

WSAEISCONN

• The socket is already connected.

WSAEMFILE

• No more file descriptors are available.

WSAENETUNREACH

• The network can't be reached from this host at this time.

WSAENOBUFS

• No buffer space is available. The socket cannot be connected.

WSAENOTSOCK

• The descriptor is not a socket.

WSAETIMEDOUT

• Attempt to connect timed out without establishing a connection

WSAEWOULDBLOCK

• The socket is marked as non-blocking and the connection cannot be completed immediately. It is possible to select() the socket while it is connecting by select()ing it for writing.