/* $OpenBSD: uthread_ioctl.c,v 1.4 2006/09/22 19:04:33 kurt Exp $ */ /* * Copyright (c) 1995-1998 John Birrell * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by John Birrell. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: uthread_ioctl.c,v 1.6 1999/08/28 00:03:37 peter Exp $ */ #include #include #ifdef _THREAD_SAFE #include /* O_NONBLOCK*/ #include #include "pthread_private.h" int ioctl(int fd, unsigned long request,...) { int ret; int *op; va_list ap; /* Lock the file descriptor: */ if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) { /* Initialise the variable argument list: */ va_start(ap, request); switch( request) { case FIONBIO: /* * descriptors must be non-blocking; we are only * twiddling the flag based on the request */ op = va_arg(ap, int *); _thread_fd_table[fd]->status_flags->flags &= ~O_NONBLOCK; _thread_fd_table[fd]->status_flags->flags |= ((*op) ? O_NONBLOCK : 0); ret = 0; break; default: ret = _thread_sys_ioctl(fd, request, va_arg(ap, char *)); break; } /* Free variable arguments: */ va_end(ap); /* Unlock the file descriptor: */ _FD_UNLOCK(fd, FD_RDWR); } /* Return the completion status: */ return (ret); } #endif