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. Neither the name of the author nor the names of any co-contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/ioctl.h>
33 #include <sys/fcntl.h> /* O_NONBLOCK*/
35 #include "pthread_private.h"
37 __weak_reference(_ioctl, ioctl);
40 _ioctl(int fd, unsigned long request,...)
47 /* Lock the file descriptor: */
48 if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) {
49 /* Initialise the variable argument list: */
50 va_start(ap, request);
55 * descriptors must be non-blocking; we are only
56 * twiddling the flag based on the request
58 op = va_arg(ap, int *);
59 flags = _thread_fd_getflags(fd);
64 _thread_fd_setflags(fd, flags);
68 ret = __sys_ioctl(fd, request, va_arg(ap, char *));
72 /* Free variable arguments: */
75 /* Unlock the file descriptor: */
76 _FD_UNLOCK(fd, FD_RDWR);
79 /* Return the completion status: */