4 * Copyright (C) 2008 Kay Sievers <kay.sievers@vrfy.org>
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.
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.
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/>.
29 #include <sys/select.h>
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)
37 printf("test-libudev: %s %s:%d ", fn, file, line);
38 vprintf(format, args);
41 static int print_devlinks_cb(struct udev_device *udev_device, const char *value, void *data)
43 printf("link: '%s'\n", value);
47 static int print_properties_cb(struct udev_device *udev_device, const char *key, const char *value, void *data)
49 printf("property: '%s=%s'\n", key, value);
53 static void print_device(struct udev_device *device)
58 printf("*** device: %p ***\n", device);
59 str = udev_device_get_syspath(device);
60 printf("syspath: '%s'\n", str);
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);
65 str = udev_device_get_driver(device);
66 printf("driver: '%s'\n", str);
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);
76 static int test_device(struct udev *udev, const char *syspath)
78 struct udev_device *device;
80 printf("looking at device: %s\n", syspath);
81 device = udev_device_new_from_syspath(udev, syspath);
83 printf("no device\n");
87 udev_device_unref(device);
91 static int test_device_parents(struct udev *udev, const char *syspath)
93 struct udev_device *device;
94 struct udev_device *device_parent;
96 printf("looking at device: %s\n", syspath);
97 device = udev_device_new_from_syspath(udev, syspath);
101 device_parent = device;
103 print_device(device_parent);
104 device_parent = udev_device_get_parent(device_parent);
105 } while (device_parent != NULL);
107 device_parent = device;
109 print_device(device_parent);
110 device_parent = udev_device_get_parent(device_parent);
111 } while (device_parent != NULL);
112 udev_device_unref(device);
117 static int devices_enum_cb(struct udev *udev,
118 const char *devpath, const char *subsystem, const char *name,
121 printf("device: '%s' (%s) '%s'\n", devpath, subsystem, name);
125 static int test_enumerate(struct udev *udev, const char *subsystem)
129 count = udev_enumerate_devices(udev, subsystem, devices_enum_cb, NULL);
130 printf("found %i devices\n\n", count);
134 static int test_monitor(struct udev *udev, const char *socket_path)
136 struct udev_monitor *udev_monitor;
140 udev_monitor = udev_monitor_new_from_socket(udev, socket_path);
141 if (udev_monitor == NULL) {
142 printf("no socket\n");
145 if (udev_monitor_enable_receiving(udev_monitor) < 0) {
146 printf("bind failed\n");
150 fd = udev_monitor_get_fd(udev_monitor);
154 struct udev_device *device;
157 FD_SET(STDIN_FILENO, &readfds);
158 FD_SET(fd, &readfds);
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);
164 if (FD_ISSET(fd, &readfds)) {
165 device = udev_monitor_receive_device(udev_monitor);
166 if (device == NULL) {
167 printf("no device from socket\n");
170 print_device(device);
171 udev_device_unref(device);
174 if (FD_ISSET(STDIN_FILENO, &readfds)) {
175 printf("exiting loop\n");
180 udev_monitor_unref(udev_monitor);
184 int main(int argc, char *argv[], char *envp[])
186 struct udev *udev = NULL;
187 static const struct option options[] = {
188 { "syspath", 1, NULL, 'p' },
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' },
196 const char *syspath = "/devices/virtual/mem/null";
197 const char *subsystem = NULL;
198 const char *socket = "@/org/kernel/udev/monitor";
203 printf("context: %p\n", udev);
205 printf("no context\n");
208 udev_set_log_fn(udev, log_fn);
209 printf("set log: %p\n", log_fn);
214 option = getopt_long(argc, argv, "+dhV", options, NULL);
229 if (udev_get_log_priority(udev) < LOG_INFO)
230 udev_set_log_priority(udev, LOG_INFO);
233 printf("--debug --syspath= --subsystem= --socket= --help\n");
236 printf("%s\n", VERSION);
243 str = udev_get_sys_path(udev);
244 printf("sys_path: '%s'\n", str);
245 str = udev_get_dev_path(udev);
246 printf("dev_path: '%s'\n", str);
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);
254 test_device(udev, syspath);
255 test_device_parents(udev, syspath);
256 test_enumerate(udev, subsystem);
257 test_monitor(udev, socket);