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/* Copyright (C) 1994-2018 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#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)))
{
if (err == MIG_BAD_ID || err == EOPNOTSUPP)
err = ENOTTY;
return __hurd_dfail (fd, err), NULL;
}
return nodename;
}
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