glx: use the loader util lib
[mesa.git] / src / gbm / main / common.c
1 /*
2 * Copyright © 2011 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,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Benjamin Franzke <benjaminfranzke@googlemail.com>
26 */
27
28 #include <stdio.h>
29 #include <string.h>
30
31 #include <libudev.h>
32 #include <sys/types.h>
33 #include <sys/stat.h>
34 #include <unistd.h>
35
36 #include "common.h"
37 #include "gbmint.h"
38
39 GBM_EXPORT struct udev_device *
40 _gbm_udev_device_new_from_fd(struct udev *udev, int fd)
41 {
42 struct udev_device *device;
43 struct stat buf;
44
45 if (fstat(fd, &buf) < 0) {
46 fprintf(stderr, "gbm: failed to stat fd %d", fd);
47 return NULL;
48 }
49
50 device = udev_device_new_from_devnum(udev, 'c', buf.st_rdev);
51 if (device == NULL) {
52 fprintf(stderr,
53 "gbm: could not create udev device for fd %d", fd);
54 return NULL;
55 }
56
57 return device;
58 }
59
60 GBM_EXPORT char *
61 _gbm_fd_get_device_name(int fd)
62 {
63 struct udev *udev;
64 struct udev_device *device;
65 const char *const_device_name;
66 char *device_name = NULL;
67
68 udev = udev_new();
69 device = _gbm_udev_device_new_from_fd(udev, fd);
70 if (device == NULL)
71 return NULL;
72
73 const_device_name = udev_device_get_devnode(device);
74 if (!const_device_name)
75 goto out;
76 device_name = strdup(const_device_name);
77
78 out:
79 udev_device_unref(device);
80 udev_unref(udev);
81
82 return device_name;
83 }
84
85 GBM_EXPORT void
86 _gbm_log(const char *fmt_str, ...)
87 {
88 }