1 /*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 /* Miniature version of a header-only keyutils.h (no library required) */
18
19 #ifndef _INIT_KEYUTILS_H_
20 #define _INIT_KEYUTILS_H_
21
22 #ifndef KEYUTILS_H /* walk away if the _real_ one exists */
23
24 #include <linux/keyctl.h>
25 #include <stdarg.h>
26 #include <sys/syscall.h>
27 #include <unistd.h>
28
keyctl(int cmd,...)29 static inline long keyctl(int cmd, ...) {
30 va_list va;
31 unsigned long arg2, arg3, arg4, arg5;
32
33 va_start(va, cmd);
34 arg2 = va_arg(va, unsigned long);
35 arg3 = va_arg(va, unsigned long);
36 arg4 = va_arg(va, unsigned long);
37 arg5 = va_arg(va, unsigned long);
38 va_end(va);
39 return syscall(__NR_keyctl, cmd, arg2, arg3, arg4, arg5);
40 }
41
42 #endif
43
44 #endif
45