1 /*
2  * Copyright © 2007 Intel Corporation
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21  * IN THE SOFTWARE.
22  *
23  * Authors:
24  *    Eric Anholt <eric@anholt.net>
25  *
26  */
27 
28 #include "igt.h"
29 #include <limits.h>
30 #include <sys/ioctl.h>
31 #include <stdlib.h>
32 #include <errno.h>
33 
34 
35 IGT_TEST_DESCRIPTION("Tests the DRM_IOCTL_GET_CLIENT ioctl.");
36 
37 igt_simple_main
38 {
39 	int fd, ret;
40 	drm_client_t client;
41 
42 	fd = drm_open_driver(DRIVER_ANY);
43 
44 	/* Look for client index 0.  This should exist whether we're operating
45 	 * on an otherwise unused drm device, or the X Server is running on
46 	 * the device.
47 	 */
48 	client.idx = 0;
49 	ret = ioctl(fd, DRM_IOCTL_GET_CLIENT, &client);
50 	igt_assert(ret == 0);
51 
52 	/* Look for some absurd client index and make sure it's invalid.
53 	 * The DRM drivers currently always return data, so the user has
54 	 * no real way to detect when the list has terminated.  That's bad,
55 	 * and this test is XFAIL as a result.
56 	 */
57 	client.idx = 0x7fffffff;
58 	ret = ioctl(fd, DRM_IOCTL_GET_CLIENT, &client);
59 	igt_assert(ret == -1 && errno == EINVAL);
60 
61 	close(fd);
62 }
63