2 * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by John Birrell.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * $FreeBSD: src/lib/libc_r/uthread/uthread_ioctl.c,v 1.9.2.3 2002/10/22 14:44:03 fjoe Exp $
33 * $DragonFly: src/lib/libc_r/uthread/uthread_ioctl.c,v 1.2 2003/06/17 04:26:48 dillon Exp $
36 #include <sys/ioctl.h>
37 #include <sys/fcntl.h> /* O_NONBLOCK*/
39 #include "pthread_private.h"
42 _ioctl(int fd, unsigned long request,...)
49 /* Lock the file descriptor: */
50 if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) {
51 /* Initialise the variable argument list: */
52 va_start(ap, request);
57 * descriptors must be non-blocking; we are only
58 * twiddling the flag based on the request
60 op = va_arg(ap, int *);
61 flags = _thread_fd_getflags(fd) & ~O_NONBLOCK;
62 flags |= ((*op) ? O_NONBLOCK : 0);
63 _thread_fd_setflags(fd, flags);
67 ret = __sys_ioctl(fd, request, va_arg(ap, char *));
71 /* Free variable arguments: */
74 /* Unlock the file descriptor: */
75 _FD_UNLOCK(fd, FD_RDWR);
78 /* Return the completion status: */
82 __strong_reference(_ioctl, ioctl);