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WSPGetPeerName (Compact 2013)

3/26/2014

This function gets the address of the peer to which a socket is connected.


int WSPGetPeerName(
  SOCKET s,
  struct sockaddr FAR* name,
  LPINT namelen,
  LPINT lpErrno 
);

s

[in] Descriptor identifying a connected socket.

name

[out] Pointer to the structure to receive the name of the peer.

namelen

[in, out] Pointer to an integer that, on input, indicates the size of the structure pointed to by name, and on output indicates the size of the returned name.

lpErrno

[out] Pointer to the error code.

If no error occurs, this function returns zero. Otherwise, a value of SOCKET_ERROR is returned, and a specific error code is available in lpErrno.

The following table shows the possible error codes.

Error value

Description

WSAENETDOWN

Network subsystem has failed.

WSAEFAULT

Name or the namelen parameter is not a valid part of the user address space, or the namelen parameter is too small.

WSAEINPROGRESS

Function is invoked when a callback is in progress.

WSAENOTCONN

Socket is not connected.

WSAENOTSOCK

Descriptor is not a socket.

This function supplies the name of the peer connected to the socket s and stores it in the structure sockaddr referenced by name. It can be used only on a connected socket. For datagram sockets, only the name of a peer specified in a previous WSPConnect call will be returnedany name specified by a previous WSPSendTo call will not be returned by WSPGetPeerName.

On return, the namelen parameter contains the actual size of the name returned in bytes.

Header

ws2spi.h

Library

Ws2.lib

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