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NAME

       getpeername - get name of connected peer socket

SYNOPSIS

       #include <sys/socket.h>

       int getpeername(int s, struct sockaddr *name, socklen_t *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.

RETURN VALUE

       On  success,  zero is returned.  On error, -1 is returned, and errno is
       set appropriately.

ERRORS

       EBADF  The argument s is not a valid descriptor.

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

       EINVAL namelen is invalid (e.g., is negative).

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

       ENOTCONN
              The socket is not connected.

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

CONFORMING TO

       SVr4,  4.4BSD  (the  getpeername()  function  call  first  appeared  in
       4.2BSD), POSIX.1-2001.

NOTES

       The third argument of getpeername() is in reality an int * (and this is
       what 4.x BSD and libc4 and libc5 have).  Some POSIX confusion  resulted
       in the present socklen_t, also used by glibc.  See also accept(2).

SEE ALSO

       accept(2), bind(2), getsockname(2)

COLOPHON

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       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.