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GETPEERNAME(2)              BSD System Calls Manual             GETPEERNAME(2)

NAME
     getpeername -- get name of connected peer

SYNOPSIS
     #include <&lt;sys/socket.h>&gt;

     int
     getpeername(int s, struct sockaddr *name, int *namelen);

DESCRIPTION
     Getpeername() returns the name of the peer connected to socket s.  The
     namelen parameter should be initialized to indicate the amount of space
     pointed to by name.  On return it contains the actual size of the name
     returned (in bytes).  The name is truncated if the buffer provided is too
     small.

DIAGNOSTICS
     A 0 is returned if the call succeeds, -1 if it fails.

ERRORS
     The call succeeds unless:

     [EBADF]            The argument s is not a valid descriptor.

     [ENOTSOCK]         The argument s is a file, not a socket.

     [ENOTCONN]         The socket is not connected.

     [ENOBUFS]          Insufficient resources were available in the system to
                        perform the operation.

     [EFAULT]           The name parameter points to memory not in a valid
                        part of the process address space.

SEE ALSO
     accept(2), bind(2), socket(2), getsockname(2)

HISTORY
     The getpeername() function call appeared in 4.2BSD.

4.2 Berkeley Distribution        June 4, 1993        4.2 Berkeley Distribution