1 26d4f5e9SEd Schouten /*-
2 *4d846d26SWarner Losh * SPDX-License-Identifier: BSD-2-Clause
3 d915a14eSPedro F. Giffuni *
4 26d4f5e9SEd Schouten * Copyright (c) 2009 Ed Schouten <ed@FreeBSD.org>
5 26d4f5e9SEd Schouten * All rights reserved.
6 26d4f5e9SEd Schouten *
7 26d4f5e9SEd Schouten * Redistribution and use in source and binary forms, with or without
8 26d4f5e9SEd Schouten * modification, are permitted provided that the following conditions
9 26d4f5e9SEd Schouten * are met:
10 26d4f5e9SEd Schouten * 1. Redistributions of source code must retain the above copyright
11 26d4f5e9SEd Schouten * notice, this list of conditions and the following disclaimer.
12 26d4f5e9SEd Schouten * 2. Redistributions in binary form must reproduce the above copyright
13 26d4f5e9SEd Schouten * notice, this list of conditions and the following disclaimer in the
14 26d4f5e9SEd Schouten * documentation and/or other materials provided with the distribution.
15 26d4f5e9SEd Schouten *
16 26d4f5e9SEd Schouten * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 26d4f5e9SEd Schouten * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 26d4f5e9SEd Schouten * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 26d4f5e9SEd Schouten * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 26d4f5e9SEd Schouten * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 26d4f5e9SEd Schouten * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 26d4f5e9SEd Schouten * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 26d4f5e9SEd Schouten * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 26d4f5e9SEd Schouten * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 26d4f5e9SEd Schouten * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 26d4f5e9SEd Schouten * SUCH DAMAGE.
27 26d4f5e9SEd Schouten */
28 26d4f5e9SEd Schouten
29 26d4f5e9SEd Schouten #include "namespace.h"
30 26d4f5e9SEd Schouten #include <sys/param.h>
31 26d4f5e9SEd Schouten #include <sys/ioctl.h>
32 86b6b655SEd Schouten #include <stdlib.h>
33 26d4f5e9SEd Schouten #include "un-namespace.h"
34 26d4f5e9SEd Schouten
35 26d4f5e9SEd Schouten char *
fdevname_r(int fd,char * buf,int len)36 26d4f5e9SEd Schouten fdevname_r(int fd, char *buf, int len)
37 26d4f5e9SEd Schouten {
38 26d4f5e9SEd Schouten struct fiodgname_arg fgn;
39 26d4f5e9SEd Schouten
40 26d4f5e9SEd Schouten fgn.buf = buf;
41 26d4f5e9SEd Schouten fgn.len = len;
42 26d4f5e9SEd Schouten
43 26d4f5e9SEd Schouten if (_ioctl(fd, FIODGNAME, &fgn) == -1)
44 26d4f5e9SEd Schouten return (NULL);
45 26d4f5e9SEd Schouten return (buf);
46 26d4f5e9SEd Schouten }
47 26d4f5e9SEd Schouten
48 26d4f5e9SEd Schouten char *
fdevname(int fd)49 26d4f5e9SEd Schouten fdevname(int fd)
50 26d4f5e9SEd Schouten {
51 26d4f5e9SEd Schouten static char buf[SPECNAMELEN + 1];
52 26d4f5e9SEd Schouten
53 26d4f5e9SEd Schouten return (fdevname_r(fd, buf, sizeof(buf)));
54 26d4f5e9SEd Schouten }
55