126d4f5e9SEd Schouten /*-
2*4d846d26SWarner Losh * SPDX-License-Identifier: BSD-2-Clause
3d915a14eSPedro F. Giffuni *
426d4f5e9SEd Schouten * Copyright (c) 2009 Ed Schouten <ed@FreeBSD.org>
526d4f5e9SEd Schouten * All rights reserved.
626d4f5e9SEd Schouten *
726d4f5e9SEd Schouten * Redistribution and use in source and binary forms, with or without
826d4f5e9SEd Schouten * modification, are permitted provided that the following conditions
926d4f5e9SEd Schouten * are met:
1026d4f5e9SEd Schouten * 1. Redistributions of source code must retain the above copyright
1126d4f5e9SEd Schouten * notice, this list of conditions and the following disclaimer.
1226d4f5e9SEd Schouten * 2. Redistributions in binary form must reproduce the above copyright
1326d4f5e9SEd Schouten * notice, this list of conditions and the following disclaimer in the
1426d4f5e9SEd Schouten * documentation and/or other materials provided with the distribution.
1526d4f5e9SEd Schouten *
1626d4f5e9SEd Schouten * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1726d4f5e9SEd Schouten * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1826d4f5e9SEd Schouten * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1926d4f5e9SEd Schouten * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
2026d4f5e9SEd Schouten * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2126d4f5e9SEd Schouten * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2226d4f5e9SEd Schouten * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2326d4f5e9SEd Schouten * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2426d4f5e9SEd Schouten * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2526d4f5e9SEd Schouten * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2626d4f5e9SEd Schouten * SUCH DAMAGE.
2726d4f5e9SEd Schouten */
2826d4f5e9SEd Schouten
2926d4f5e9SEd Schouten #include "namespace.h"
3026d4f5e9SEd Schouten #include <sys/param.h>
3126d4f5e9SEd Schouten #include <sys/ioctl.h>
3286b6b655SEd Schouten #include <stdlib.h>
3326d4f5e9SEd Schouten #include "un-namespace.h"
3426d4f5e9SEd Schouten
3526d4f5e9SEd Schouten char *
fdevname_r(int fd,char * buf,int len)3626d4f5e9SEd Schouten fdevname_r(int fd, char *buf, int len)
3726d4f5e9SEd Schouten {
3826d4f5e9SEd Schouten struct fiodgname_arg fgn;
3926d4f5e9SEd Schouten
4026d4f5e9SEd Schouten fgn.buf = buf;
4126d4f5e9SEd Schouten fgn.len = len;
4226d4f5e9SEd Schouten
4326d4f5e9SEd Schouten if (_ioctl(fd, FIODGNAME, &fgn) == -1)
4426d4f5e9SEd Schouten return (NULL);
4526d4f5e9SEd Schouten return (buf);
4626d4f5e9SEd Schouten }
4726d4f5e9SEd Schouten
4826d4f5e9SEd Schouten char *
fdevname(int fd)4926d4f5e9SEd Schouten fdevname(int fd)
5026d4f5e9SEd Schouten {
5126d4f5e9SEd Schouten static char buf[SPECNAMELEN + 1];
5226d4f5e9SEd Schouten
5326d4f5e9SEd Schouten return (fdevname_r(fd, buf, sizeof(buf)));
5426d4f5e9SEd Schouten }
55