drm/tests/getclient.c

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/*
* Copyright © 2007 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Authors:
* Eric Anholt <eric@anholt.net>
*
*/
#include <limits.h>
#include <sys/ioctl.h>
#include "drmtest.h"
/**
* Checks DRM_IOCTL_GET_CLIENT.
*/
int main(int argc, char **argv)
{
int fd, ret;
drm_client_t client;
fd = drm_open_any();
/* Look for client index 0. This should exist whether we're operating
* on an otherwise unused drm device, or the X Server is running on
* the device.
*/
client.idx = 0;
ret = ioctl(fd, DRM_IOCTL_GET_CLIENT, &client);
assert(ret == 0);
/* Look for some absurd client index and make sure it's invalid.
* The DRM drivers currently always return data, so the user has
* no real way to detect when the list has terminated. That's bad,
* and this test is XFAIL as a result.
*/
client.idx = 0x7fffffff;
ret = ioctl(fd, DRM_IOCTL_GET_CLIENT, &client);
assert(ret == -1 && errno == EINVAL);
close(fd);
return 0;
}