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+.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved 
+.TH "GETPEERNAME" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\" getpeername 
+.SH NAME
+getpeername \- get the name of the peer socket
+.SH SYNOPSIS
+.LP
+\fB#include <sys/socket.h>
+.br
+.sp
+int getpeername(int\fP \fIsocket\fP\fB, struct sockaddr *restrict\fP
+\fIaddress\fP\fB,
+.br
+\ \ \ \ \ \  socklen_t *restrict\fP \fIaddress_len\fP\fB);
+.br
+\fP
+.SH DESCRIPTION
+.LP
+The \fIgetpeername\fP() function shall retrieve the peer address of
+the specified socket, store this address in the
+\fBsockaddr\fP structure pointed to by the \fIaddress\fP argument,
+and store the length of this address in the object pointed to
+by the \fIaddress_len\fP argument.
+.LP
+If the actual length of the address is greater than the length of
+the supplied \fBsockaddr\fP structure, the stored address
+shall be truncated.
+.LP
+If the protocol permits connections by unbound clients, and the peer
+is not bound, then the value stored in the object pointed
+to by \fIaddress\fP is unspecified.
+.SH RETURN VALUE
+.LP
+Upon successful completion, 0 shall be returned. Otherwise, -1 shall
+be returned and \fIerrno\fP set to indicate the error.
+.SH ERRORS
+.LP
+The \fIgetpeername\fP() function shall fail if:
+.TP 7
+.B EBADF
+The \fIsocket\fP argument is not a valid file descriptor.
+.TP 7
+.B EINVAL
+The socket has been shut down.
+.TP 7
+.B ENOTCONN
+The socket is not connected or otherwise has not had the peer pre-specified.
+.TP 7
+.B ENOTSOCK
+The \fIsocket\fP argument does not refer to a socket.
+.TP 7
+.B EOPNOTSUPP
+The operation is not supported for the socket protocol.
+.sp
+.LP
+The \fIgetpeername\fP() function may fail if:
+.TP 7
+.B ENOBUFS
+Insufficient resources were available in the system to complete the
+call.
+.sp
+.LP
+\fIThe following sections are informative.\fP
+.SH EXAMPLES
+.LP
+None.
+.SH APPLICATION USAGE
+.LP
+None.
+.SH RATIONALE
+.LP
+None.
+.SH FUTURE DIRECTIONS
+.LP
+None.
+.SH SEE ALSO
+.LP
+\fIaccept\fP() , \fIbind\fP() , \fIgetsockname\fP() , \fIsocket\fP()
+, the Base Definitions volume of
+IEEE\ Std\ 1003.1-2001, \fI<sys/socket.h>\fP
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
+Electrical and Electronics Engineers, Inc and The Open Group. In the
+event of any discrepancy between this version and the original IEEE and
+The Open Group Standard, the original IEEE and The Open Group Standard
+is the referee document. The original Standard can be obtained online at
+http://www.opengroup.org/unix/online.html .