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33a5cc29 KS |
1 | /* |
2 | * test-libudev | |
3 | * | |
4 | * Copyright (C) 2008 Kay Sievers <kay.sievers@vrfy.org> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include "config.h" | |
21 | ||
22 | #include <stdio.h> | |
23 | #include <stdarg.h> | |
ba6929f6 KS |
24 | #include <unistd.h> |
25 | #include <errno.h> | |
26 | #include <string.h> | |
b2d9e4f2 KS |
27 | #include <getopt.h> |
28 | #include <syslog.h> | |
ba6929f6 KS |
29 | #include <sys/select.h> |
30 | ||
33a5cc29 KS |
31 | #include "libudev.h" |
32 | ||
33 | static void log_fn(struct udev *udev, | |
34 | int priority, const char *file, int line, const char *fn, | |
35 | const char *format, va_list args) | |
36 | { | |
37 | printf("test-libudev: %s %s:%d ", fn, file, line); | |
38 | vprintf(format, args); | |
39 | } | |
40 | ||
ba6929f6 | 41 | static int print_devlinks_cb(struct udev_device *udev_device, const char *value, void *data) |
33a5cc29 | 42 | { |
ba6929f6 KS |
43 | printf("link: '%s'\n", value); |
44 | return 0; | |
45 | } | |
46 | ||
47 | static int print_properties_cb(struct udev_device *udev_device, const char *key, const char *value, void *data) | |
48 | { | |
49 | printf("property: '%s=%s'\n", key, value); | |
50 | return 0; | |
51 | } | |
52 | ||
53 | static void print_device(struct udev_device *device) | |
54 | { | |
55 | const char *str; | |
56 | int count; | |
57 | ||
58 | printf("*** device: %p ***\n", device); | |
8753fadf KS |
59 | str = udev_device_get_syspath(device); |
60 | printf("syspath: '%s'\n", str); | |
ba6929f6 KS |
61 | str = udev_device_get_devpath(device); |
62 | printf("devpath: '%s'\n", str); | |
63 | str = udev_device_get_subsystem(device); | |
64 | printf("subsystem: '%s'\n", str); | |
95d90c4f KS |
65 | str = udev_device_get_driver(device); |
66 | printf("driver: '%s'\n", str); | |
ba6929f6 KS |
67 | str = udev_device_get_devname(device); |
68 | printf("devname: '%s'\n", str); | |
69 | count = udev_device_get_devlinks(device, print_devlinks_cb, NULL); | |
70 | printf("found %i links\n", count); | |
71 | count = udev_device_get_properties(device, print_properties_cb, NULL); | |
72 | printf("found %i properties\n", count); | |
73 | printf("\n"); | |
74 | } | |
75 | ||
8753fadf | 76 | static int test_device(struct udev *udev, const char *syspath) |
ba6929f6 KS |
77 | { |
78 | struct udev_device *device; | |
79 | ||
8753fadf KS |
80 | printf("looking at device: %s\n", syspath); |
81 | device = udev_device_new_from_syspath(udev, syspath); | |
ba6929f6 KS |
82 | if (device == NULL) { |
83 | printf("no device\n"); | |
84 | return -1; | |
85 | } | |
86 | print_device(device); | |
87 | udev_device_unref(device); | |
33a5cc29 KS |
88 | return 0; |
89 | } | |
90 | ||
8753fadf | 91 | static int test_device_parents(struct udev *udev, const char *syspath) |
4ad3a37f KS |
92 | { |
93 | struct udev_device *device; | |
b2d9e4f2 | 94 | struct udev_device *device_parent; |
4ad3a37f | 95 | |
8753fadf KS |
96 | printf("looking at device: %s\n", syspath); |
97 | device = udev_device_new_from_syspath(udev, syspath); | |
b2d9e4f2 KS |
98 | if (device == NULL) |
99 | return -1; | |
100 | ||
101 | device_parent = device; | |
102 | do { | |
103 | print_device(device_parent); | |
104 | device_parent = udev_device_get_parent(device_parent); | |
105 | } while (device_parent != NULL); | |
106 | ||
107 | device_parent = device; | |
108 | do { | |
109 | print_device(device_parent); | |
110 | device_parent = udev_device_get_parent(device_parent); | |
111 | } while (device_parent != NULL); | |
112 | udev_device_unref(device); | |
4ad3a37f | 113 | |
4ad3a37f KS |
114 | return 0; |
115 | } | |
116 | ||
33a5cc29 KS |
117 | static int devices_enum_cb(struct udev *udev, |
118 | const char *devpath, const char *subsystem, const char *name, | |
119 | void *data) | |
120 | { | |
ba6929f6 | 121 | printf("device: '%s' (%s) '%s'\n", devpath, subsystem, name); |
33a5cc29 KS |
122 | return 0; |
123 | } | |
124 | ||
ba6929f6 | 125 | static int test_enumerate(struct udev *udev, const char *subsystem) |
33a5cc29 | 126 | { |
ba6929f6 KS |
127 | int count; |
128 | ||
6b12bdb6 | 129 | count = udev_enumerate_devices(udev, subsystem, devices_enum_cb, NULL); |
ba6929f6 KS |
130 | printf("found %i devices\n\n", count); |
131 | return count; | |
132 | } | |
133 | ||
134 | static int test_monitor(struct udev *udev, const char *socket_path) | |
135 | { | |
136 | struct udev_monitor *udev_monitor; | |
137 | fd_set readfds; | |
138 | int fd; | |
139 | ||
140 | udev_monitor = udev_monitor_new_from_socket(udev, socket_path); | |
141 | if (udev_monitor == NULL) { | |
142 | printf("no socket\n"); | |
143 | return -1; | |
144 | } | |
d59f11e1 KS |
145 | if (udev_monitor_enable_receiving(udev_monitor) < 0) { |
146 | printf("bind failed\n"); | |
147 | return -1; | |
148 | } | |
ba6929f6 KS |
149 | |
150 | fd = udev_monitor_get_fd(udev_monitor); | |
151 | FD_ZERO(&readfds); | |
152 | ||
153 | while (1) { | |
154 | struct udev_device *device; | |
155 | int fdcount; | |
156 | ||
157 | FD_SET(STDIN_FILENO, &readfds); | |
158 | FD_SET(fd, &readfds); | |
159 | ||
160 | printf("waiting for events on %s, press ENTER to exit\n", socket_path); | |
161 | fdcount = select(fd+1, &readfds, NULL, NULL, NULL); | |
162 | printf("select fd count: %i\n", fdcount); | |
163 | ||
164 | if (FD_ISSET(fd, &readfds)) { | |
d59f11e1 | 165 | device = udev_monitor_receive_device(udev_monitor); |
ba6929f6 KS |
166 | if (device == NULL) { |
167 | printf("no device from socket\n"); | |
168 | continue; | |
169 | } | |
170 | print_device(device); | |
171 | udev_device_unref(device); | |
172 | } | |
173 | ||
174 | if (FD_ISSET(STDIN_FILENO, &readfds)) { | |
175 | printf("exiting loop\n"); | |
176 | break; | |
177 | } | |
178 | } | |
179 | ||
180 | udev_monitor_unref(udev_monitor); | |
33a5cc29 KS |
181 | return 0; |
182 | } | |
183 | ||
184 | int main(int argc, char *argv[], char *envp[]) | |
185 | { | |
b2d9e4f2 KS |
186 | struct udev *udev = NULL; |
187 | static const struct option options[] = { | |
8753fadf | 188 | { "syspath", 1, NULL, 'p' }, |
b2d9e4f2 KS |
189 | { "subsystem", 1, NULL, 's' }, |
190 | { "socket", 1, NULL, 'S' }, | |
191 | { "debug", 0, NULL, 'd' }, | |
192 | { "help", 0, NULL, 'h' }, | |
193 | { "version", 0, NULL, 'V' }, | |
194 | {} | |
195 | }; | |
8753fadf | 196 | const char *syspath = "/devices/virtual/mem/null"; |
33a5cc29 | 197 | const char *subsystem = NULL; |
ba6929f6 | 198 | const char *socket = "@/org/kernel/udev/monitor"; |
8753fadf | 199 | char path[1024]; |
ba6929f6 | 200 | const char *str; |
33a5cc29 | 201 | |
33a5cc29 KS |
202 | udev = udev_new(); |
203 | printf("context: %p\n", udev); | |
204 | if (udev == NULL) { | |
205 | printf("no context\n"); | |
206 | return 1; | |
207 | } | |
208 | udev_set_log_fn(udev, log_fn); | |
209 | printf("set log: %p\n", log_fn); | |
210 | ||
b2d9e4f2 KS |
211 | while (1) { |
212 | int option; | |
213 | ||
214 | option = getopt_long(argc, argv, "+dhV", options, NULL); | |
215 | if (option == -1) | |
216 | break; | |
217 | ||
218 | switch (option) { | |
219 | case 'p': | |
8753fadf | 220 | syspath = optarg; |
b2d9e4f2 KS |
221 | break; |
222 | case 's': | |
223 | subsystem = optarg; | |
224 | break; | |
225 | case 'S': | |
226 | socket = optarg; | |
227 | break; | |
228 | case 'd': | |
229 | if (udev_get_log_priority(udev) < LOG_INFO) | |
230 | udev_set_log_priority(udev, LOG_INFO); | |
231 | break; | |
232 | case 'h': | |
8753fadf | 233 | printf("--debug --syspath= --subsystem= --socket= --help\n"); |
b2d9e4f2 KS |
234 | goto out; |
235 | case 'V': | |
236 | printf("%s\n", VERSION); | |
237 | goto out; | |
238 | default: | |
239 | goto out; | |
240 | } | |
241 | } | |
242 | ||
33a5cc29 | 243 | str = udev_get_sys_path(udev); |
ba6929f6 | 244 | printf("sys_path: '%s'\n", str); |
33a5cc29 | 245 | str = udev_get_dev_path(udev); |
ba6929f6 | 246 | printf("dev_path: '%s'\n", str); |
33a5cc29 | 247 | |
8753fadf KS |
248 | /* add sys path if needed */ |
249 | if (strncmp(syspath, udev_get_sys_path(udev), strlen(udev_get_sys_path(udev))) != 0) { | |
250 | snprintf(path, sizeof(path), "%s%s", udev_get_sys_path(udev), syspath); | |
251 | syspath = path; | |
252 | } | |
253 | ||
254 | test_device(udev, syspath); | |
255 | test_device_parents(udev, syspath); | |
ba6929f6 KS |
256 | test_enumerate(udev, subsystem); |
257 | test_monitor(udev, socket); | |
b2d9e4f2 | 258 | out: |
33a5cc29 KS |
259 | udev_unref(udev); |
260 | return 0; | |
261 | } |