diff options
Diffstat (limited to 'udev/lib/libudev-device-db-write.c')
| -rw-r--r-- | udev/lib/libudev-device-db-write.c | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/udev/lib/libudev-device-db-write.c b/udev/lib/libudev-device-db-write.c deleted file mode 100644 index a8e66f7884..0000000000 --- a/udev/lib/libudev-device-db-write.c +++ /dev/null @@ -1,138 +0,0 @@ -/* - * libudev - interface to udev device information - * - * Copyright (C) 2008 Kay Sievers <kay.sievers@vrfy.org> - * - * 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> -#include <stdio.h> -#include <string.h> -#include <stddef.h> -#include <unistd.h> -#include <fcntl.h> -#include <string.h> -#include <sys/stat.h> - -#include "udev.h" - -static size_t devpath_to_db_path(struct udev *udev, const char *devpath, char *filename, size_t len) -{ - char *s; - size_t l; - - 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) -{ - struct udev *udev = udev_device_get_udev(udev_device); - char filename[UTIL_PATH_SIZE]; - 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)); - 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) != 0) - goto file; - if (udev_device_get_ignore_remove(udev_device)) - goto file; - 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; - - /* - * 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, "create db link (%s)\n", target); - udev_selinux_setfscreatecon(udev, filename, S_IFLNK); - ret = symlink(target, filename); - udev_selinux_resetfscreatecon(udev); - if (ret == 0) - goto out; -file: - f = fopen(filename, "w"); - if (f == NULL) { - err(udev, "unable to create db file '%s': %m\n", filename); - return -1; - } - info(udev, "created db file for '%s' in '%s'\n", udev_device_get_devpath(udev_device), filename); - - 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, "T:%u\n", udev_device_get_event_timeout(udev_device)); - if (udev_device_get_num_fake_partitions(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; - fprintf(f, "E:%s=%s\n", - udev_list_entry_get_name(list_entry), - udev_list_entry_get_value(list_entry)); - } - fclose(f); -out: - return 0; -} - -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, 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, 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); -} |