| /* |
| * Copyright (c) 2017 The Chromium OS Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include <errno.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include <sys/timex.h> |
| |
| /* This program is expected to run under android alt-syscall. */ |
| int main(void) { |
| struct timex buf; |
| int ret; |
| |
| /* Test a read operation. Should succeed (i.e. not returning -1). */ |
| memset(&buf, 0, sizeof(buf)); |
| ret = adjtimex(&buf); |
| if (ret == -1) |
| return 1; |
| |
| /* |
| * Test a write operation. Under android alt-syscall, should fail with |
| * EPERM. |
| */ |
| buf.modes = ADJ_MAXERROR; |
| ret = adjtimex(&buf); |
| if (ret != -1 || errno != EPERM) |
| return 3; |
| |
| /* Passed successfully */ |
| return 0; |
| } |