uclibc-ng/libc/sysdeps/linux/common/ioctl.c

/* vi: set sw=4 ts=4: */
/*
 * ioctl() for uClibc
 *
 * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
 *
 * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
 */

#include <sys/syscall.h>
#include <stdarg.h>
#include <sys/ioctl.h>

#ifdef __UCLIBC_HAS_THREADS_NATIVE__
#include <sysdep-cancel.h>
#else
#define SINGLE_THREAD_P 1
#endif

libc_hidden_proto(ioctl)

#define __NR___syscall_ioctl __NR_ioctl
static __always_inline
_syscall3(int, __syscall_ioctl, int, fd, unsigned long int, request, void *, arg)

int ioctl(int fd, unsigned long int request, ...)
{
	void *arg;
	va_list list;

	va_start(list, request);
	arg = va_arg(list, void *);

	va_end(list);

	if (SINGLE_THREAD_P)
		return __syscall_ioctl(fd, request, arg);

#ifdef __UCLIBC_HAS_THREADS_NATIVE__
	int oldtype = LIBC_CANCEL_ASYNC ();
	int result = __syscall_ioctl(fd, request, arg);
	LIBC_CANCEL_RESET (oldtype);
	return result;
#endif
}
libc_hidden_def(ioctl)