1 /* $OpenBSD: uthread_ioctl.c,v 1.3 1999/11/25 07:01:37 d Exp $ */
2 /*
3 * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by John Birrell.
17 * 4. Neither the name of the author nor the names of any co-contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * $FreeBSD: uthread_ioctl.c,v 1.6 1999/08/28 00:03:37 peter Exp $
34 */
35 #include <stdarg.h>
36 #include <sys/ioctl.h>
37 #ifdef _THREAD_SAFE
38 #include <sys/fcntl.h> /* O_NONBLOCK*/
39 #include <pthread.h>
40 #include "pthread_private.h"
41
42 int
ioctl(int fd,unsigned long request,...)43 ioctl(int fd, unsigned long request,...)
44 {
45 int ret;
46 int *op;
47 va_list ap;
48
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);
53
54 switch( request) {
55 case FIONBIO:
56 /*
57 * descriptors must be non-blocking; we are only
58 * twiddling the flag based on the request
59 */
60 op = va_arg(ap, int *);
61 _thread_fd_table[fd]->flags &= ~O_NONBLOCK;
62 _thread_fd_table[fd]->flags |= ((*op) ? O_NONBLOCK : 0);
63 ret = 0;
64 break;
65 default:
66 ret = _thread_sys_ioctl(fd, request, va_arg(ap, char *));
67 break;
68 }
69
70 /* Free variable arguments: */
71 va_end(ap);
72
73 /* Unlock the file descriptor: */
74 _FD_UNLOCK(fd, FD_RDWR);
75 }
76
77 /* Return the completion status: */
78 return (ret);
79 }
80 #endif
81