systemd/udev/udev-builtin.c

/*
 * Copyright (C) 2007-2009 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 <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include <errno.h>
#include <getopt.h>

#include "udev.h"

static const struct udev_builtin *builtins[] = {
	[UDEV_BUILTIN_PATH_ID] = &udev_builtin_path_id,
	[UDEV_BUILTIN_USB_ID] = &udev_builtin_usb_id,
	[UDEV_BUILTIN_INPUT_ID] = &udev_builtin_input_id,
	[UDEV_BUILTIN_BLKID] = &udev_builtin_blkid,
	[UDEV_BUILTIN_KMOD] = &udev_builtin_kmod,
};

int udev_builtin_load(struct udev *udev)
{
	unsigned int i;

	for (i = 0; i < ARRAY_SIZE(builtins); i++)
		if (builtins[i]->load)
			builtins[i]->load(udev);
	return 0;
}

int udev_builtin_unload(struct udev *udev)
{
	unsigned int i;

	for (i = 0; i < ARRAY_SIZE(builtins); i++)
		if (builtins[i]->unload)
			builtins[i]->unload(udev);
	return 0;
}

int udev_builtin_list(struct udev *udev)
{
	unsigned int i;

	for (i = 0; i < ARRAY_SIZE(builtins); i++)
		fprintf(stderr, "  %-12s %s\n", builtins[i]->name, builtins[i]->help);
	return 0;
}

const char *udev_builtin_name(enum udev_builtin_cmd cmd)
{
	return builtins[cmd]->name;
}

bool udev_builtin_run_once(enum udev_builtin_cmd cmd)
{
	return builtins[cmd]->run_once;
}

enum udev_builtin_cmd udev_builtin_lookup(const char *command)
{
	char name[UTIL_PATH_SIZE];
	enum udev_builtin_cmd i;
	char *pos;

	util_strscpy(name, sizeof(name), command);
	pos = strchr(name, ' ');
	if (pos)
		pos[0] = '\0';
	for (i = 0; i < ARRAY_SIZE(builtins); i++)
		if (strcmp(builtins[i]->name, name) == 0)
			return i;
	return UDEV_BUILTIN_MAX;
}

int udev_builtin_run(struct udev_device *dev, enum udev_builtin_cmd cmd, const char *command, bool test)
{
	char arg[UTIL_PATH_SIZE];
	int argc;
	char *argv[128];

	optind = 0;
	util_strscpy(arg, sizeof(arg), command);
	udev_build_argv(udev_device_get_udev(dev), arg, &argc, argv);
	return builtins[cmd]->cmd(dev, argc, argv, test);
}

int udev_builtin_add_property(struct udev_device *dev, bool test, const char *key, const char *val)
{
	struct udev_list_entry *entry;

	entry = udev_device_add_property(dev, key, val);
	/* store in db, skip private keys */
	if (key[0] != '.')
		udev_list_entry_set_num(entry, true);

	info(udev_device_get_udev(dev), "%s=%s\n", key, val);
	if (test)
		printf("%s=%s\n", key, val);
	return 0;
}