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-rw-r--r--lib/libc_r/uthread/uthread_ioctl.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/lib/libc_r/uthread/uthread_ioctl.c b/lib/libc_r/uthread/uthread_ioctl.c
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+++ b/lib/libc_r/uthread/uthread_ioctl.c
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+/*
+ * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>
+ * 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.
+ *
+ * $FreeBSD$
+ */
+#include <stdarg.h>
+#include <sys/ioctl.h>
+#include <sys/fcntl.h> /* O_NONBLOCK*/
+#include <pthread.h>
+#include "pthread_private.h"
+
+__weak_reference(_ioctl, ioctl);
+
+int
+_ioctl(int fd, unsigned long request,...)
+{
+ int ret;
+ int flags;
+ 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 *);
+ flags = _thread_fd_getflags(fd);
+ if (*op == 0)
+ flags &= ~O_NONBLOCK;
+ else
+ flags |= O_NONBLOCK;
+ _thread_fd_setflags(fd, flags);
+ ret = 0;
+ break;
+ default:
+ ret = __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);
+}
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