/*
- * 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.
+ * libudev - interface to udev device information
*
- * 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.
+ * Copyright (C) 2008 Kay Sievers <kay.sievers@vrfy.org>
*
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
*/
#include <stdlib.h>
static size_t devpath_to_db_path(struct udev *udev, const char *devpath, char *filename, size_t len)
{
- size_t start;
+ char *s;
+ size_t l;
- /* translate to location of db file */
- util_strlcpy(filename, udev_get_dev_path(udev), len);
- start = util_strlcat(filename, "/.udev/db/", len);
- util_strlcat(filename, devpath, len);
- return util_path_encode(&filename[start], len - start);
+ s = filename;
+ l = util_strpcpyl(&s, len, udev_get_dev_path(udev), "/.udev/db/", NULL);
+ return util_path_encode(devpath, s, l);
}
int udev_device_update_db(struct udev_device *udev_device)
FILE *f;
char target[232]; /* on 64bit, tmpfs inlines up to 239 bytes */
size_t devlen = strlen(udev_get_dev_path(udev))+1;
+ char *s;
+ size_t l;
struct udev_list_entry *list_entry;
int ret;
- devpath_to_db_path(udev,
- udev_device_get_devpath(udev_device),
- filename, sizeof(filename));
- create_path(udev, filename);
+ devpath_to_db_path(udev, udev_device_get_devpath(udev_device), filename, sizeof(filename));
+ util_create_path(udev, filename);
unlink(filename);
udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(udev_device))
if (udev_list_entry_get_flag(list_entry))
goto file;
- if (udev_device_get_num_fake_partitions(udev_device))
+ if (udev_device_get_num_fake_partitions(udev_device) != 0)
goto file;
if (udev_device_get_ignore_remove(udev_device))
goto file;
- /* try not to waste tmpfs memory; store values, if they fit, in a symlink target */
- util_strlcpy(target, &udev_device_get_devnode(udev_device)[devlen], sizeof(target));
- udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(udev_device)) {
- size_t len;
+ if (udev_device_get_devlink_priority(udev_device) != 0)
+ goto file;
+ if (udev_device_get_event_timeout(udev_device) >= 0)
+ goto file;
+ if (udev_device_get_watch_handle(udev_device) >= 0)
+ goto file;
+ if (udev_device_get_devnode(udev_device) == NULL)
+ goto out;
- util_strlcat(target, " ", sizeof(target));
- len = util_strlcat(target, &udev_list_entry_get_name(list_entry)[devlen], sizeof(target));
- if (len >= sizeof(target)) {
+ /*
+ * if we have only the node and symlinks to store, try not to waste
+ * tmpfs memory -- store values, if they fit, in a symlink target
+ */
+ s = target;
+ l = util_strpcpy(&s, sizeof(target), &udev_device_get_devnode(udev_device)[devlen]);
+ udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(udev_device)) {
+ l = util_strpcpyl(&s, l, " ", &udev_list_entry_get_name(list_entry)[devlen], NULL);
+ if (l == 0) {
info(udev, "size of links too large, create file\n");
goto file;
}
}
info(udev, "created db file for '%s' in '%s'\n", udev_device_get_devpath(udev_device), filename);
- fprintf(f, "N:%s\n", &udev_device_get_devnode(udev_device)[devlen]);
- udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(udev_device))
- fprintf(f, "S:%s\n", &udev_list_entry_get_name(list_entry)[devlen]);
+ if (udev_device_get_devnode(udev_device) != NULL) {
+ fprintf(f, "N:%s\n", &udev_device_get_devnode(udev_device)[devlen]);
+ udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(udev_device))
+ fprintf(f, "S:%s\n", &udev_list_entry_get_name(list_entry)[devlen]);
+ }
if (udev_device_get_devlink_priority(udev_device) != 0)
fprintf(f, "L:%u\n", udev_device_get_devlink_priority(udev_device));
if (udev_device_get_event_timeout(udev_device) >= 0)
fprintf(f, "A:%u\n", udev_device_get_num_fake_partitions(udev_device));
if (udev_device_get_ignore_remove(udev_device))
fprintf(f, "R:%u\n", udev_device_get_ignore_remove(udev_device));
+ if (udev_device_get_watch_handle(udev_device) >= 0)
+ fprintf(f, "W:%u\n", udev_device_get_watch_handle(udev_device));
udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(udev_device)) {
if (!udev_list_entry_get_flag(list_entry))
continue;
int udev_device_delete_db(struct udev_device *udev_device)
{
+ struct udev *udev = udev_device_get_udev(udev_device);
char filename[UTIL_PATH_SIZE];
- devpath_to_db_path(udev_device_get_udev(udev_device),
- udev_device_get_devpath(udev_device),
- filename, sizeof(filename));
+ devpath_to_db_path(udev, udev_device_get_devpath(udev_device), filename, sizeof(filename));
unlink(filename);
return 0;
}
int udev_device_rename_db(struct udev_device *udev_device, const char *devpath_old)
{
+ struct udev *udev = udev_device_get_udev(udev_device);
char filename_old[UTIL_PATH_SIZE];
char filename[UTIL_PATH_SIZE];
- devpath_to_db_path(udev_device_get_udev(udev_device),
- devpath_old,
- filename_old, sizeof(filename_old));
- devpath_to_db_path(udev_device_get_udev(udev_device),
- udev_device_get_devpath(udev_device),
- filename, sizeof(filename));
+ devpath_to_db_path(udev, devpath_old, filename_old, sizeof(filename_old));
+ devpath_to_db_path(udev, udev_device_get_devpath(udev_device), filename, sizeof(filename));
return rename(filename_old, filename);
}
~ianmdlvl / elogind.git / blobdiff