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authorKay Sievers <kay.sievers@vrfy.org>2008-08-27 17:11:58 +0200
committerKay Sievers <kay.sievers@vrfy.org>2008-08-27 17:11:58 +0200
commit33a5cc297680f20e791c792a45fe949f715f5f69 (patch)
tree3bc109e4a8d1d8db7dc899d48ed5e134e1f9c810 /udev/lib/test-libudev.c
parent41ac13f49f0153d544fcf5099bb201cf3a3e19d4 (diff)
libudev: add library to access udev information
Diffstat (limited to 'udev/lib/test-libudev.c')
-rw-r--r--udev/lib/test-libudev.c107
1 files changed, 107 insertions, 0 deletions
diff --git a/udev/lib/test-libudev.c b/udev/lib/test-libudev.c
new file mode 100644
index 0000000000..e86c660e64
--- /dev/null
+++ b/udev/lib/test-libudev.c
@@ -0,0 +1,107 @@
+/*
+ * test-libudev
+ *
+ * Copyright (C) 2008 Kay Sievers <kay.sievers@vrfy.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdarg.h>
+#include "libudev.h"
+
+static void log_fn(struct udev *udev,
+ int priority, const char *file, int line, const char *fn,
+ const char *format, va_list args)
+{
+ printf("test-libudev: %s %s:%d ", fn, file, line);
+ vprintf(format, args);
+}
+
+static int devlinks_cb(struct udev_device *udev_device, const char *value, void *data)
+{
+ printf("link: %s\n", value);
+ return 0;
+}
+
+static int devices_enum_cb(struct udev *udev,
+ const char *devpath, const char *subsystem, const char *name,
+ void *data)
+{
+ printf("device: %s (%s) %s\n", devpath, subsystem, name);
+ return 0;
+}
+
+static int properties_cb(struct udev_device *udev_device, const char *key, const char *value, void *data)
+{
+ printf("property: %s=%s\n", key, value);
+ return 0;
+}
+
+int main(int argc, char *argv[], char *envp[])
+{
+ struct udev *udev;
+ struct udev_device *device;
+ const char *str;
+ const char *devpath = "/devices/virtual/mem/null";
+ const char *subsystem = NULL;
+
+ if (argv[1] != NULL) {
+ devpath = argv[1];
+ if (argv[2] != NULL)
+ subsystem = argv[2];
+ }
+
+ udev = udev_new();
+ printf("context: %p\n", udev);
+ if (udev == NULL) {
+ printf("no context\n");
+ return 1;
+ }
+ udev_set_log_fn(udev, log_fn);
+ printf("set log: %p\n", log_fn);
+
+ str = udev_get_sys_path(udev);
+ printf("sys_path: %s\n", str);
+ str = udev_get_dev_path(udev);
+ printf("dev_path: %s\n", str);
+
+ printf("looking at device: %s\n", devpath);
+ device = udev_device_new_from_devpath(udev, devpath);
+ printf("device: %p\n", device);
+ if (device == NULL) {
+ printf("no device\n");
+ return 1;
+ }
+ str = udev_device_get_devpath(device);
+ printf("devpath: %s\n", str);
+ str = udev_device_get_subsystem(device);
+ printf("subsystem: %s\n", str);
+ str = udev_device_get_devname(device);
+ printf("devname: %s\n", str);
+ udev_device_get_devlinks(device, devlinks_cb, NULL);
+ udev_device_get_properties(device, properties_cb, NULL);
+ udev_device_unref(device);
+
+ if (subsystem == NULL)
+ printf("enumerating devices from all subsystems\n");
+ else
+ printf("enumerating devices from subsystem: %s\n", subsystem);
+ udev_devices_enumerate(udev, subsystem, devices_enum_cb, NULL);
+
+ udev_unref(udev);
+ return 0;
+}