diff options
author | Kay Sievers <kay.sievers@vrfy.org> | 2008-08-27 17:11:58 +0200 |
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committer | Kay Sievers <kay.sievers@vrfy.org> | 2008-08-27 17:11:58 +0200 |
commit | 33a5cc297680f20e791c792a45fe949f715f5f69 (patch) | |
tree | 3bc109e4a8d1d8db7dc899d48ed5e134e1f9c810 /udev/lib/test-libudev.c | |
parent | 41ac13f49f0153d544fcf5099bb201cf3a3e19d4 (diff) |
libudev: add library to access udev information
Diffstat (limited to 'udev/lib/test-libudev.c')
-rw-r--r-- | udev/lib/test-libudev.c | 107 |
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; +} |