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/*
* 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;
}
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