mirror of
https://github.com/systemd/systemd-stable.git
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83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
/*
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* Copyright (C) 2004-2006 Kay Sievers <kay.sievers@vrfy.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <stddef.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <ctype.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <linux/sockios.h>
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#include "udev.h"
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#include "udev_rules.h"
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struct udevice *udev_device_init(struct udevice *udev)
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{
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if (udev == NULL)
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udev = malloc(sizeof(struct udevice));
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if (udev == NULL)
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return NULL;
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memset(udev, 0x00, sizeof(struct udevice));
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INIT_LIST_HEAD(&udev->symlink_list);
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INIT_LIST_HEAD(&udev->run_list);
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INIT_LIST_HEAD(&udev->env_list);
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/* set sysfs device to local storage, can be overridden if needed */
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udev->dev = &udev->dev_local;
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/* default node permissions */
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udev->mode = 0660;
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strcpy(udev->owner, "root");
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strcpy(udev->group, "root");
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udev->event_timeout = -1;
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return udev;
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}
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void udev_device_cleanup(struct udevice *udev)
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{
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name_list_cleanup(&udev->symlink_list);
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name_list_cleanup(&udev->run_list);
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name_list_cleanup(&udev->env_list);
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free(udev);
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}
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dev_t udev_device_get_devt(struct udevice *udev)
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{
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const char *attr;
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unsigned int maj, min;
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/* read it from sysfs */
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attr = sysfs_attr_get_value(udev->dev->devpath, "dev");
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if (attr != NULL) {
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if (sscanf(attr, "%u:%u", &maj, &min) == 2)
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return makedev(maj, min);
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}
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return makedev(0, 0);
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}
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