45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/*
|
|
* Copyright (c) 2013, 2016 Jonas 'Sortie' Termansen.
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*
|
|
* sys/ioctl/ioctl.c
|
|
* Miscellaneous device control interface.
|
|
*/
|
|
|
|
#include <sys/ioctl.h>
|
|
#include <sys/syscall.h>
|
|
|
|
#include <errno.h>
|
|
#include <stdarg.h>
|
|
#include <stdint.h>
|
|
|
|
DEFN_SYSCALL3(int, sys_ioctl, SYSCALL_IOCTL, int, int, uintptr_t);
|
|
|
|
int ioctl(int fd, int request, ...)
|
|
{
|
|
uintptr_t arg;
|
|
va_list ap;
|
|
va_start(ap, request);
|
|
switch ( __IOCTL_TYPE(request) )
|
|
{
|
|
case __IOCTL_TYPE_VOID: arg = 0; break;
|
|
case __IOCTL_TYPE_INT: arg = (uintptr_t) va_arg(ap, int); break;
|
|
case __IOCTL_TYPE_LONG: arg = (uintptr_t) va_arg(ap, long); break;
|
|
case __IOCTL_TYPE_PTR: arg = (uintptr_t) va_arg(ap, void*); break;
|
|
default: return errno = EINVAL, -1;
|
|
}
|
|
va_end(ap);
|
|
return sys_ioctl(fd, request, arg);
|
|
}
|