glibc/sysdeps/mach/hurd/ttyname.c

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1995-02-18 01:27:10 +00:00
/* Copyright (C) 1994 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <errno.h>
#include <unistd.h>
#include <hurd.h>
#include <hurd/term.h>
#include <hurd/fd.h>
/* Return the pathname of the terminal FD is open on, or NULL on errors.
The returned storage is good only until the next call to this function. */
char *
ttyname (int fd)
{
error_t err;
static char nodename[1024]; /* XXX */
nodename[0] = '\0';
if (err = HURD_DPORT_USE (fd, __term_get_nodename (port, nodename)))
return __hurd_dfail (fd, err), NULL;
return nodename;
}