getpeername(3XNET)				   X/Open Networking Services Library Functions 				getpeername(3XNET)

NAME

       getpeername - get the name of the peer socket

SYNOPSIS

       cc [ flag ... ] file ... -lxnet [ library ... ]
       #include <sys/socket.h>

       int getpeername(int socket, struct sockaddr *restrict address,
	    socklen_t *restrict address_len);

DESCRIPTION

       The  getpeername() function retrieves the peer address of the specified socket, stores this address in the sockaddr structure pointed to by
       the address argument, and stores the length of this address in the object pointed to by the address_len argument.

       If the actual length of the address is greater than the length of the supplied sockaddr structure, the stored address will be truncated.

       If the protocol permits connections by unbound clients, and the peer is not bound, then the value  stored  in  the  object  pointed  to	by
       address is unspecified.

RETURN VALUES

       Upon successful completion, 0 is returned.  Otherwise, -1 is returned and errno is set to indicate the error.

ERRORS

       The getpeername() function will fail if:

       EBADF	     The socket argument is not a valid file descriptor.

       EFAULT	     The  address or  address_len parameter can not be accessed or written.

       EINVAL	     The socket has been shut down.

       ENOTCONN      The socket is not connected or otherwise has not had the peer prespecified.

       ENOTSOCK      The socket argument does not refer to a socket.

       EOPNOTSUPP    The operation is not supported for the socket protocol.

       The getpeername() function may fail if:

       ENOBUFS	  Insufficient resources were available in the system to complete the call.

       ENOSR	  There were insufficient STREAMS resources available for the operation to complete.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       accept(3XNET), bind(3XNET), getsockname(3XNET), socket(3XNET), attributes(5), standards(5)

SunOS 5.11							    10 Jun 2002 						getpeername(3XNET)