85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
/*
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* Copyright (C) 2004-2008 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
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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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 udev *udev)
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{
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struct udevice *udevice;
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udevice = malloc(sizeof(struct udevice));
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if (udevice == NULL)
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return NULL;
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memset(udevice, 0x00, sizeof(struct udevice));
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udevice->udev = udev;
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INIT_LIST_HEAD(&udevice->symlink_list);
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INIT_LIST_HEAD(&udevice->run_list);
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INIT_LIST_HEAD(&udevice->env_list);
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/* set sysfs device to local storage, can be overridden if needed */
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udevice->dev = &udevice->dev_local;
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/* default node permissions */
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udevice->mode = 0660;
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strcpy(udevice->owner, "root");
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strcpy(udevice->group, "root");
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udevice->event_timeout = -1;
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return udevice;
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}
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void udev_device_cleanup(struct udevice *udevice)
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{
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if (udevice == NULL)
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return;
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name_list_cleanup(udevice->udev, &udevice->symlink_list);
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name_list_cleanup(udevice->udev, &udevice->run_list);
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name_list_cleanup(udevice->udev, &udevice->env_list);
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free(udevice);
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}
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dev_t udev_device_get_devt(struct udevice *udevice)
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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(udevice->udev, udevice->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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