X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Flibudev-device.c;h=10f28b8cd5bb5a4a4fb40067d2f4cfdd3b1155d3;hp=e5950bb4b13bb7176626fc10b64e1c01b6887037;hb=a1525d172014e66f97d82fc1e9096444597abcc7;hpb=ad29a9f14fa8b1932c0e418bfcf1c10ce6a35a33

diff --git a/src/libudev-device.c b/src/libudev-device.c
index e5950bb4b..10f28b8cd 100644
--- a/src/libudev-device.c
+++ b/src/libudev-device.c
@@ -44,49 +44,49 @@
  * Opaque object representing one kernel sys device.
  */
 struct udev_device {
-	struct udev *udev;
-	struct udev_device *parent_device;
-	char *syspath;
-	const char *devpath;
-	char *sysname;
-	const char *sysnum;
-	char *devnode;
-	mode_t devnode_mode;
-	char *subsystem;
-	char *devtype;
-	char *driver;
-	char *action;
-	char *devpath_old;
-	char *id_filename;
-	char **envp;
-	char *monitor_buf;
-	size_t monitor_buf_len;
-	struct udev_list devlinks_list;
-	struct udev_list properties_list;
-	struct udev_list sysattr_value_list;
-	struct udev_list sysattr_list;
-	struct udev_list tags_list;
-	unsigned long long int seqnum;
-	unsigned long long int usec_initialized;
-	int devlink_priority;
-	int refcount;
-	dev_t devnum;
-	int ifindex;
-	int watch_handle;
-	int maj, min;
-	bool parent_set;
-	bool subsystem_set;
-	bool devtype_set;
-	bool devlinks_uptodate;
-	bool envp_uptodate;
-	bool tags_uptodate;
-	bool driver_set;
-	bool info_loaded;
-	bool db_loaded;
-	bool uevent_loaded;
-	bool is_initialized;
-	bool sysattr_list_read;
-	bool db_persist;
+        struct udev *udev;
+        struct udev_device *parent_device;
+        char *syspath;
+        const char *devpath;
+        char *sysname;
+        const char *sysnum;
+        char *devnode;
+        mode_t devnode_mode;
+        char *subsystem;
+        char *devtype;
+        char *driver;
+        char *action;
+        char *devpath_old;
+        char *id_filename;
+        char **envp;
+        char *monitor_buf;
+        size_t monitor_buf_len;
+        struct udev_list devlinks_list;
+        struct udev_list properties_list;
+        struct udev_list sysattr_value_list;
+        struct udev_list sysattr_list;
+        struct udev_list tags_list;
+        unsigned long long int seqnum;
+        unsigned long long int usec_initialized;
+        int devlink_priority;
+        int refcount;
+        dev_t devnum;
+        int ifindex;
+        int watch_handle;
+        int maj, min;
+        bool parent_set;
+        bool subsystem_set;
+        bool devtype_set;
+        bool devlinks_uptodate;
+        bool envp_uptodate;
+        bool tags_uptodate;
+        bool driver_set;
+        bool info_loaded;
+        bool db_loaded;
+        bool uevent_loaded;
+        bool is_initialized;
+        bool sysattr_list_read;
+        bool db_persist;
 };
 
 /**
@@ -100,36 +100,36 @@ struct udev_device {
  **/
 UDEV_EXPORT unsigned long long int udev_device_get_seqnum(struct udev_device *udev_device)
 {
-	if (udev_device == NULL)
-		return 0;
-	return udev_device->seqnum;
+        if (udev_device == NULL)
+                return 0;
+        return udev_device->seqnum;
 }
 
 static int udev_device_set_seqnum(struct udev_device *udev_device, unsigned long long int seqnum)
 {
-	char num[32];
+        char num[32];
 
-	udev_device->seqnum = seqnum;
-	snprintf(num, sizeof(num), "%llu", seqnum);
-	udev_device_add_property(udev_device, "SEQNUM", num);
-	return 0;
+        udev_device->seqnum = seqnum;
+        snprintf(num, sizeof(num), "%llu", seqnum);
+        udev_device_add_property(udev_device, "SEQNUM", num);
+        return 0;
 }
 
 int udev_device_get_ifindex(struct udev_device *udev_device)
 {
-	if (!udev_device->info_loaded)
-		udev_device_read_uevent_file(udev_device);
-	return udev_device->ifindex;
+        if (!udev_device->info_loaded)
+                udev_device_read_uevent_file(udev_device);
+        return udev_device->ifindex;
 }
 
 static int udev_device_set_ifindex(struct udev_device *udev_device, int ifindex)
 {
-	char num[32];
+        char num[32];
 
-	udev_device->ifindex = ifindex;
-	snprintf(num, sizeof(num), "%u", ifindex);
-	udev_device_add_property(udev_device, "IFINDEX", num);
-	return 0;
+        udev_device->ifindex = ifindex;
+        snprintf(num, sizeof(num), "%u", ifindex);
+        udev_device_add_property(udev_device, "IFINDEX", num);
+        return 0;
 }
 
 /**
@@ -140,45 +140,45 @@ static int udev_device_set_ifindex(struct udev_device *udev_device, int ifindex)
  **/
 UDEV_EXPORT dev_t udev_device_get_devnum(struct udev_device *udev_device)
 {
-	if (udev_device == NULL)
-		return makedev(0, 0);
-	if (!udev_device->info_loaded)
-		udev_device_read_uevent_file(udev_device);
-	return udev_device->devnum;
+        if (udev_device == NULL)
+                return makedev(0, 0);
+        if (!udev_device->info_loaded)
+                udev_device_read_uevent_file(udev_device);
+        return udev_device->devnum;
 }
 
 static int udev_device_set_devnum(struct udev_device *udev_device, dev_t devnum)
 {
-	char num[32];
+        char num[32];
 
-	udev_device->devnum = devnum;
+        udev_device->devnum = devnum;
 
-	snprintf(num, sizeof(num), "%u", major(devnum));
-	udev_device_add_property(udev_device, "MAJOR", num);
-	snprintf(num, sizeof(num), "%u", minor(devnum));
-	udev_device_add_property(udev_device, "MINOR", num);
-	return 0;
+        snprintf(num, sizeof(num), "%u", major(devnum));
+        udev_device_add_property(udev_device, "MAJOR", num);
+        snprintf(num, sizeof(num), "%u", minor(devnum));
+        udev_device_add_property(udev_device, "MINOR", num);
+        return 0;
 }
 
 const char *udev_device_get_devpath_old(struct udev_device *udev_device)
 {
-	return udev_device->devpath_old;
+        return udev_device->devpath_old;
 }
 
 static int udev_device_set_devpath_old(struct udev_device *udev_device, const char *devpath_old)
 {
-	const char *pos;
+        const char *pos;
 
-	free(udev_device->devpath_old);
-	udev_device->devpath_old = strdup(devpath_old);
-	if (udev_device->devpath_old == NULL)
-		return -ENOMEM;
-	udev_device_add_property(udev_device, "DEVPATH_OLD", udev_device->devpath_old);
+        free(udev_device->devpath_old);
+        udev_device->devpath_old = strdup(devpath_old);
+        if (udev_device->devpath_old == NULL)
+                return -ENOMEM;
+        udev_device_add_property(udev_device, "DEVPATH_OLD", udev_device->devpath_old);
 
-	pos = strrchr(udev_device->devpath_old, '/');
-	if (pos == NULL)
-		return -EINVAL;
-	return 0;
+        pos = strrchr(udev_device->devpath_old, '/');
+        if (pos == NULL)
+                return -EINVAL;
+        return 0;
 }
 
 /**
@@ -189,27 +189,27 @@ static int udev_device_set_devpath_old(struct udev_device *udev_device, const ch
  **/
 UDEV_EXPORT const char *udev_device_get_driver(struct udev_device *udev_device)
 {
-	char driver[UTIL_NAME_SIZE];
+        char driver[UTIL_NAME_SIZE];
 
-	if (udev_device == NULL)
-		return NULL;
-	if (!udev_device->driver_set) {
-		udev_device->driver_set = true;
-		if (util_get_sys_core_link_value(udev_device->udev, "driver", udev_device->syspath, driver, sizeof(driver)) > 0)
-			udev_device->driver = strdup(driver);
-	}
-	return udev_device->driver;
+        if (udev_device == NULL)
+                return NULL;
+        if (!udev_device->driver_set) {
+                udev_device->driver_set = true;
+                if (util_get_sys_core_link_value(udev_device->udev, "driver", udev_device->syspath, driver, sizeof(driver)) > 0)
+                        udev_device->driver = strdup(driver);
+        }
+        return udev_device->driver;
 }
 
 static int udev_device_set_driver(struct udev_device *udev_device, const char *driver)
 {
-	free(udev_device->driver);
-	udev_device->driver = strdup(driver);
-	if (udev_device->driver == NULL)
-		return -ENOMEM;
-	udev_device->driver_set = true;
-	udev_device_add_property(udev_device, "DRIVER", udev_device->driver);
-	return 0;
+        free(udev_device->driver);
+        udev_device->driver = strdup(driver);
+        if (udev_device->driver == NULL)
+                return -ENOMEM;
+        udev_device->driver_set = true;
+        udev_device_add_property(udev_device, "DRIVER", udev_device->driver);
+        return 0;
 }
 
 /**
@@ -222,35 +222,35 @@ static int udev_device_set_driver(struct udev_device *udev_device, const char *d
  **/
 UDEV_EXPORT const char *udev_device_get_devtype(struct udev_device *udev_device)
 {
-	if (udev_device == NULL)
-		return NULL;
-	if (!udev_device->devtype_set) {
-		udev_device->devtype_set = true;
-		udev_device_read_uevent_file(udev_device);
-	}
-	return udev_device->devtype;
+        if (udev_device == NULL)
+                return NULL;
+        if (!udev_device->devtype_set) {
+                udev_device->devtype_set = true;
+                udev_device_read_uevent_file(udev_device);
+        }
+        return udev_device->devtype;
 }
 
 static int udev_device_set_devtype(struct udev_device *udev_device, const char *devtype)
 {
-	free(udev_device->devtype);
-	udev_device->devtype = strdup(devtype);
-	if (udev_device->devtype == NULL)
-		return -ENOMEM;
-	udev_device->devtype_set = true;
-	udev_device_add_property(udev_device, "DEVTYPE", udev_device->devtype);
-	return 0;
+        free(udev_device->devtype);
+        udev_device->devtype = strdup(devtype);
+        if (udev_device->devtype == NULL)
+                return -ENOMEM;
+        udev_device->devtype_set = true;
+        udev_device_add_property(udev_device, "DEVTYPE", udev_device->devtype);
+        return 0;
 }
 
 static int udev_device_set_subsystem(struct udev_device *udev_device, const char *subsystem)
 {
-	free(udev_device->subsystem);
-	udev_device->subsystem = strdup(subsystem);
-	if (udev_device->subsystem == NULL)
-		return -ENOMEM;
-	udev_device->subsystem_set = true;
-	udev_device_add_property(udev_device, "SUBSYSTEM", udev_device->subsystem);
-	return 0;
+        free(udev_device->subsystem);
+        udev_device->subsystem = strdup(subsystem);
+        if (udev_device->subsystem == NULL)
+                return -ENOMEM;
+        udev_device->subsystem_set = true;
+        udev_device_add_property(udev_device, "SUBSYSTEM", udev_device->subsystem);
+        return 0;
 }
 
 /**
@@ -264,82 +264,82 @@ static int udev_device_set_subsystem(struct udev_device *udev_device, const char
  **/
 UDEV_EXPORT const char *udev_device_get_subsystem(struct udev_device *udev_device)
 {
-	char subsystem[UTIL_NAME_SIZE];
-
-	if (udev_device == NULL)
-		return NULL;
-	if (!udev_device->subsystem_set) {
-		udev_device->subsystem_set = true;
-		/* read "subsystem" link */
-		if (util_get_sys_core_link_value(udev_device->udev, "subsystem", udev_device->syspath, subsystem, sizeof(subsystem)) > 0) {
-			udev_device_set_subsystem(udev_device, subsystem);
-			return udev_device->subsystem;
-		}
-		/* implicit names */
-		if (strncmp(udev_device->devpath, "/module/", 8) == 0) {
-			udev_device_set_subsystem(udev_device, "module");
-			return udev_device->subsystem;
-		}
-		if (strstr(udev_device->devpath, "/drivers/") != NULL) {
-			udev_device_set_subsystem(udev_device, "drivers");
-			return udev_device->subsystem;
-		}
-		if (strncmp(udev_device->devpath, "/subsystem/", 11) == 0 ||
-		    strncmp(udev_device->devpath, "/class/", 7) == 0 ||
-		    strncmp(udev_device->devpath, "/bus/", 5) == 0) {
-			udev_device_set_subsystem(udev_device, "subsystem");
-			return udev_device->subsystem;
-		}
-	}
-	return udev_device->subsystem;
+        char subsystem[UTIL_NAME_SIZE];
+
+        if (udev_device == NULL)
+                return NULL;
+        if (!udev_device->subsystem_set) {
+                udev_device->subsystem_set = true;
+                /* read "subsystem" link */
+                if (util_get_sys_core_link_value(udev_device->udev, "subsystem", udev_device->syspath, subsystem, sizeof(subsystem)) > 0) {
+                        udev_device_set_subsystem(udev_device, subsystem);
+                        return udev_device->subsystem;
+                }
+                /* implicit names */
+                if (strncmp(udev_device->devpath, "/module/", 8) == 0) {
+                        udev_device_set_subsystem(udev_device, "module");
+                        return udev_device->subsystem;
+                }
+                if (strstr(udev_device->devpath, "/drivers/") != NULL) {
+                        udev_device_set_subsystem(udev_device, "drivers");
+                        return udev_device->subsystem;
+                }
+                if (strncmp(udev_device->devpath, "/subsystem/", 11) == 0 ||
+                    strncmp(udev_device->devpath, "/class/", 7) == 0 ||
+                    strncmp(udev_device->devpath, "/bus/", 5) == 0) {
+                        udev_device_set_subsystem(udev_device, "subsystem");
+                        return udev_device->subsystem;
+                }
+        }
+        return udev_device->subsystem;
 }
 
 mode_t udev_device_get_devnode_mode(struct udev_device *udev_device)
 {
-	if (!udev_device->info_loaded)
-		udev_device_read_uevent_file(udev_device);
-	return udev_device->devnode_mode;
+        if (!udev_device->info_loaded)
+                udev_device_read_uevent_file(udev_device);
+        return udev_device->devnode_mode;
 }
 
 static int udev_device_set_devnode_mode(struct udev_device *udev_device, mode_t mode)
 {
-	char num[32];
+        char num[32];
 
-	udev_device->devnode_mode = mode;
-	snprintf(num, sizeof(num), "%#o", mode);
-	udev_device_add_property(udev_device, "DEVMODE", num);
-	return 0;
+        udev_device->devnode_mode = mode;
+        snprintf(num, sizeof(num), "%#o", mode);
+        udev_device_add_property(udev_device, "DEVMODE", num);
+        return 0;
 }
 
 struct udev_list_entry *udev_device_add_property(struct udev_device *udev_device, const char *key, const char *value)
 {
-	udev_device->envp_uptodate = false;
-	if (value == NULL) {
-		struct udev_list_entry *list_entry;
+        udev_device->envp_uptodate = false;
+        if (value == NULL) {
+                struct udev_list_entry *list_entry;
 
-		list_entry = udev_device_get_properties_list_entry(udev_device);
-		list_entry = udev_list_entry_get_by_name(list_entry, key);
-		if (list_entry != NULL)
-			udev_list_entry_delete(list_entry);
-		return NULL;
-	}
-	return udev_list_entry_add(&udev_device->properties_list, key, value);
+                list_entry = udev_device_get_properties_list_entry(udev_device);
+                list_entry = udev_list_entry_get_by_name(list_entry, key);
+                if (list_entry != NULL)
+                        udev_list_entry_delete(list_entry);
+                return NULL;
+        }
+        return udev_list_entry_add(&udev_device->properties_list, key, value);
 }
 
 static struct udev_list_entry *udev_device_add_property_from_string(struct udev_device *udev_device, const char *property)
 {
-	char name[UTIL_LINE_SIZE];
-	char *val;
+        char name[UTIL_LINE_SIZE];
+        char *val;
 
-	util_strscpy(name, sizeof(name), property);
-	val = strchr(name, '=');
-	if (val == NULL)
-		return NULL;
-	val[0] = '\0';
-	val = &val[1];
-	if (val[0] == '\0')
-		val = NULL;
-	return udev_device_add_property(udev_device, name, val);
+        util_strscpy(name, sizeof(name), property);
+        val = strchr(name, '=');
+        if (val == NULL)
+                return NULL;
+        val[0] = '\0';
+        val = &val[1];
+        if (val[0] == '\0')
+                val = NULL;
+        return udev_device_add_property(udev_device, name, val);
 }
 
 /*
@@ -353,86 +353,86 @@ static struct udev_list_entry *udev_device_add_property_from_string(struct udev_
  */
 void udev_device_add_property_from_string_parse(struct udev_device *udev_device, const char *property)
 {
-	if (strncmp(property, "DEVPATH=", 8) == 0) {
-		char path[UTIL_PATH_SIZE];
-
-		util_strscpyl(path, sizeof(path), udev_get_sys_path(udev_device->udev), &property[8], NULL);
-		udev_device_set_syspath(udev_device, path);
-	} else if (strncmp(property, "SUBSYSTEM=", 10) == 0) {
-		udev_device_set_subsystem(udev_device, &property[10]);
-	} else if (strncmp(property, "DEVTYPE=", 8) == 0) {
-		udev_device_set_devtype(udev_device, &property[8]);
-	} else if (strncmp(property, "DEVNAME=", 8) == 0) {
-		udev_device_set_devnode(udev_device, &property[8]);
-	} else if (strncmp(property, "DEVLINKS=", 9) == 0) {
-		char devlinks[UTIL_PATH_SIZE];
-		char *slink;
-		char *next;
-
-		util_strscpy(devlinks, sizeof(devlinks), &property[9]);
-		slink = devlinks;
-		next = strchr(slink, ' ');
-		while (next != NULL) {
-			next[0] = '\0';
-			udev_device_add_devlink(udev_device, slink, 0);
-			slink = &next[1];
-			next = strchr(slink, ' ');
-		}
-		if (slink[0] != '\0')
-			udev_device_add_devlink(udev_device, slink, 0);
-	} else if (strncmp(property, "TAGS=", 5) == 0) {
-		char tags[UTIL_PATH_SIZE];
-		char *next;
-
-		util_strscpy(tags, sizeof(tags), &property[5]);
-		next = strchr(tags, ':');
-		if (next != NULL) {
-			next++;
-			while (next[0] != '\0') {
-				char *tag;
-
-				tag = next;
-				next = strchr(tag, ':');
-				if (next == NULL)
-					break;
-				next[0] = '\0';
-				next++;
-				udev_device_add_tag(udev_device, tag);
-			}
-		}
-	} else if (strncmp(property, "USEC_INITIALIZED=", 19) == 0) {
-		udev_device_set_usec_initialized(udev_device, strtoull(&property[19], NULL, 10));
-	} else if (strncmp(property, "DRIVER=", 7) == 0) {
-		udev_device_set_driver(udev_device, &property[7]);
-	} else if (strncmp(property, "ACTION=", 7) == 0) {
-		udev_device_set_action(udev_device, &property[7]);
-	} else if (strncmp(property, "MAJOR=", 6) == 0) {
-		udev_device->maj = strtoull(&property[6], NULL, 10);
-	} else if (strncmp(property, "MINOR=", 6) == 0) {
-		udev_device->min = strtoull(&property[6], NULL, 10);
-	} else if (strncmp(property, "DEVPATH_OLD=", 12) == 0) {
-		udev_device_set_devpath_old(udev_device, &property[12]);
-	} else if (strncmp(property, "SEQNUM=", 7) == 0) {
-		udev_device_set_seqnum(udev_device, strtoull(&property[7], NULL, 10));
-	} else if (strncmp(property, "IFINDEX=", 8) == 0) {
-		udev_device_set_ifindex(udev_device, strtoull(&property[8], NULL, 10));
-	} else if (strncmp(property, "DEVMODE=", 8) == 0) {
-		udev_device_set_devnode_mode(udev_device, strtoul(&property[8], NULL, 8));
-	} else {
-		udev_device_add_property_from_string(udev_device, property);
-	}
+        if (strncmp(property, "DEVPATH=", 8) == 0) {
+                char path[UTIL_PATH_SIZE];
+
+                util_strscpyl(path, sizeof(path), udev_get_sys_path(udev_device->udev), &property[8], NULL);
+                udev_device_set_syspath(udev_device, path);
+        } else if (strncmp(property, "SUBSYSTEM=", 10) == 0) {
+                udev_device_set_subsystem(udev_device, &property[10]);
+        } else if (strncmp(property, "DEVTYPE=", 8) == 0) {
+                udev_device_set_devtype(udev_device, &property[8]);
+        } else if (strncmp(property, "DEVNAME=", 8) == 0) {
+                udev_device_set_devnode(udev_device, &property[8]);
+        } else if (strncmp(property, "DEVLINKS=", 9) == 0) {
+                char devlinks[UTIL_PATH_SIZE];
+                char *slink;
+                char *next;
+
+                util_strscpy(devlinks, sizeof(devlinks), &property[9]);
+                slink = devlinks;
+                next = strchr(slink, ' ');
+                while (next != NULL) {
+                        next[0] = '\0';
+                        udev_device_add_devlink(udev_device, slink, 0);
+                        slink = &next[1];
+                        next = strchr(slink, ' ');
+                }
+                if (slink[0] != '\0')
+                        udev_device_add_devlink(udev_device, slink, 0);
+        } else if (strncmp(property, "TAGS=", 5) == 0) {
+                char tags[UTIL_PATH_SIZE];
+                char *next;
+
+                util_strscpy(tags, sizeof(tags), &property[5]);
+                next = strchr(tags, ':');
+                if (next != NULL) {
+                        next++;
+                        while (next[0] != '\0') {
+                                char *tag;
+
+                                tag = next;
+                                next = strchr(tag, ':');
+                                if (next == NULL)
+                                        break;
+                                next[0] = '\0';
+                                next++;
+                                udev_device_add_tag(udev_device, tag);
+                        }
+                }
+        } else if (strncmp(property, "USEC_INITIALIZED=", 19) == 0) {
+                udev_device_set_usec_initialized(udev_device, strtoull(&property[19], NULL, 10));
+        } else if (strncmp(property, "DRIVER=", 7) == 0) {
+                udev_device_set_driver(udev_device, &property[7]);
+        } else if (strncmp(property, "ACTION=", 7) == 0) {
+                udev_device_set_action(udev_device, &property[7]);
+        } else if (strncmp(property, "MAJOR=", 6) == 0) {
+                udev_device->maj = strtoull(&property[6], NULL, 10);
+        } else if (strncmp(property, "MINOR=", 6) == 0) {
+                udev_device->min = strtoull(&property[6], NULL, 10);
+        } else if (strncmp(property, "DEVPATH_OLD=", 12) == 0) {
+                udev_device_set_devpath_old(udev_device, &property[12]);
+        } else if (strncmp(property, "SEQNUM=", 7) == 0) {
+                udev_device_set_seqnum(udev_device, strtoull(&property[7], NULL, 10));
+        } else if (strncmp(property, "IFINDEX=", 8) == 0) {
+                udev_device_set_ifindex(udev_device, strtoull(&property[8], NULL, 10));
+        } else if (strncmp(property, "DEVMODE=", 8) == 0) {
+                udev_device_set_devnode_mode(udev_device, strtoul(&property[8], NULL, 8));
+        } else {
+                udev_device_add_property_from_string(udev_device, property);
+        }
 }
 
 int udev_device_add_property_from_string_parse_finish(struct udev_device *udev_device)
 {
-	if (udev_device->maj > 0)
-		udev_device_set_devnum(udev_device, makedev(udev_device->maj, udev_device->min));
-	udev_device->maj = 0;
-	udev_device->min = 0;
+        if (udev_device->maj > 0)
+                udev_device_set_devnum(udev_device, makedev(udev_device->maj, udev_device->min));
+        udev_device->maj = 0;
+        udev_device->min = 0;
 
-	if (udev_device->devpath == NULL || udev_device->subsystem == NULL)
-		return -EINVAL;
-	return 0;
+        if (udev_device->devpath == NULL || udev_device->subsystem == NULL)
+                return -EINVAL;
+        return 0;
 }
 
 /**
@@ -444,162 +444,169 @@ int udev_device_add_property_from_string_parse_finish(struct udev_device *udev_d
  **/
 UDEV_EXPORT const char *udev_device_get_property_value(struct udev_device *udev_device, const char *key)
 {
-	struct udev_list_entry *list_entry;
+        struct udev_list_entry *list_entry;
 
-	if (udev_device == NULL)
-		return NULL;
-	if (key == NULL)
-		return NULL;
+        if (udev_device == NULL)
+                return NULL;
+        if (key == NULL)
+                return NULL;
 
-	list_entry = udev_device_get_properties_list_entry(udev_device);
-	list_entry = udev_list_entry_get_by_name(list_entry, key);
-	return udev_list_entry_get_value(list_entry);
+        list_entry = udev_device_get_properties_list_entry(udev_device);
+        list_entry = udev_list_entry_get_by_name(list_entry, key);
+        return udev_list_entry_get_value(list_entry);
 }
 
 int udev_device_read_db(struct udev_device *udev_device, const char *dbfile)
 {
-	char filename[UTIL_PATH_SIZE];
-	char line[UTIL_LINE_SIZE];
-	FILE *f;
-
-	/* providing a database file will always force-load it */
-	if (dbfile == NULL) {
-		const char *id;
-
-		if (udev_device->db_loaded)
-			return 0;
-		udev_device->db_loaded = true;
-
-		id = udev_device_get_id_filename(udev_device);
-		if (id == NULL)
-			return -1;
-		util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev_device->udev), "/data/", id, NULL);
-		dbfile = filename;
-	}
-
-	f = fopen(dbfile, "re");
-	if (f == NULL) {
-		info(udev_device->udev, "no db file to read %s: %m\n", dbfile);
-		return -1;
-	}
-	udev_device->is_initialized = true;
-
-	while (fgets(line, sizeof(line), f)) {
-		ssize_t len;
-		const char *val;
-		struct udev_list_entry *entry;
-
-		len = strlen(line);
-		if (len < 4)
-			break;
-		line[len-1] = '\0';
-		val = &line[2];
-		switch(line[0]) {
-		case 'S':
-			util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev_device->udev), "/", val, NULL);
-			udev_device_add_devlink(udev_device, filename, 0);
-			break;
-		case 'L':
-			udev_device_set_devlink_priority(udev_device, atoi(val));
-			break;
-		case 'E':
-			entry = udev_device_add_property_from_string(udev_device, val);
-			udev_list_entry_set_num(entry, true);
-			break;
-		case 'G':
-			udev_device_add_tag(udev_device, val);
-			break;
-		case 'W':
-			udev_device_set_watch_handle(udev_device, atoi(val));
-			break;
-		case 'I':
-			udev_device_set_usec_initialized(udev_device, strtoull(val, NULL, 10));
-			break;
-		}
-	}
-	fclose(f);
-
-	info(udev_device->udev, "device %p filled with db file data\n", udev_device);
-	return 0;
+        char filename[UTIL_PATH_SIZE];
+        char line[UTIL_LINE_SIZE];
+        FILE *f;
+
+        /* providing a database file will always force-load it */
+        if (dbfile == NULL) {
+                const char *id;
+
+                if (udev_device->db_loaded)
+                        return 0;
+                udev_device->db_loaded = true;
+
+                id = udev_device_get_id_filename(udev_device);
+                if (id == NULL)
+                        return -1;
+                util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev_device->udev), "/data/", id, NULL);
+                dbfile = filename;
+        }
+
+        f = fopen(dbfile, "re");
+        if (f == NULL) {
+                info(udev_device->udev, "no db file to read %s: %m\n", dbfile);
+                return -1;
+        }
+        udev_device->is_initialized = true;
+
+        while (fgets(line, sizeof(line), f)) {
+                ssize_t len;
+                const char *val;
+                struct udev_list_entry *entry;
+
+                len = strlen(line);
+                if (len < 4)
+                        break;
+                line[len-1] = '\0';
+                val = &line[2];
+                switch(line[0]) {
+                case 'S':
+                        util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev_device->udev), "/", val, NULL);
+                        udev_device_add_devlink(udev_device, filename, 0);
+                        break;
+                case 'L':
+                        udev_device_set_devlink_priority(udev_device, atoi(val));
+                        break;
+                case 'E':
+                        entry = udev_device_add_property_from_string(udev_device, val);
+                        udev_list_entry_set_num(entry, true);
+                        break;
+                case 'G':
+                        udev_device_add_tag(udev_device, val);
+                        break;
+                case 'W':
+                        udev_device_set_watch_handle(udev_device, atoi(val));
+                        break;
+                case 'I':
+                        udev_device_set_usec_initialized(udev_device, strtoull(val, NULL, 10));
+                        break;
+                }
+        }
+        fclose(f);
+
+        info(udev_device->udev, "device %p filled with db file data\n", udev_device);
+        return 0;
 }
 
 int udev_device_read_uevent_file(struct udev_device *udev_device)
 {
-	char filename[UTIL_PATH_SIZE];
-	FILE *f;
-	char line[UTIL_LINE_SIZE];
-	int maj = 0;
-	int min = 0;
-
-	if (udev_device->uevent_loaded)
-		return 0;
-
-	util_strscpyl(filename, sizeof(filename), udev_device->syspath, "/uevent", NULL);
-	f = fopen(filename, "re");
-	if (f == NULL)
-		return -1;
-	udev_device->uevent_loaded = true;
-
-	while (fgets(line, sizeof(line), f)) {
-		char *pos;
-
-		pos = strchr(line, '\n');
-		if (pos == NULL)
-			continue;
-		pos[0] = '\0';
-
-		if (strncmp(line, "DEVTYPE=", 8) == 0)
-			udev_device_set_devtype(udev_device, &line[8]);
-		else if (strncmp(line, "MAJOR=", 6) == 0)
-			maj = strtoull(&line[6], NULL, 10);
-		else if (strncmp(line, "MINOR=", 6) == 0)
-			min = strtoull(&line[6], NULL, 10);
-		else if (strncmp(line, "IFINDEX=", 8) == 0)
-			udev_device_set_ifindex(udev_device, strtoull(&line[8], NULL, 10));
-		else if (strncmp(line, "DEVNAME=", 8) == 0)
-			udev_device_set_devnode(udev_device, &line[8]);
-		else if (strncmp(line, "DEVMODE=", 8) == 0)
-			udev_device->devnode_mode = strtoul(&line[8], NULL, 8);
-
-		udev_device_add_property_from_string(udev_device, line);
-	}
-
-	udev_device->devnum = makedev(maj, min);
-	fclose(f);
-	return 0;
+        char filename[UTIL_PATH_SIZE];
+        FILE *f;
+        char line[UTIL_LINE_SIZE];
+        int maj = 0;
+        int min = 0;
+
+        if (udev_device->uevent_loaded)
+                return 0;
+
+        util_strscpyl(filename, sizeof(filename), udev_device->syspath, "/uevent", NULL);
+        f = fopen(filename, "re");
+        if (f == NULL)
+                return -1;
+        udev_device->uevent_loaded = true;
+
+        while (fgets(line, sizeof(line), f)) {
+                char *pos;
+
+                pos = strchr(line, '\n');
+                if (pos == NULL)
+                        continue;
+                pos[0] = '\0';
+
+                if (strncmp(line, "DEVTYPE=", 8) == 0) {
+                        udev_device_set_devtype(udev_device, &line[8]);
+                        continue;
+                }
+                if (strncmp(line, "IFINDEX=", 8) == 0) {
+                        udev_device_set_ifindex(udev_device, strtoull(&line[8], NULL, 10));
+                        continue;
+                }
+                if (strncmp(line, "DEVNAME=", 8) == 0) {
+                        udev_device_set_devnode(udev_device, &line[8]);
+                        continue;
+                }
+
+                if (strncmp(line, "MAJOR=", 6) == 0)
+                        maj = strtoull(&line[6], NULL, 10);
+                else if (strncmp(line, "MINOR=", 6) == 0)
+                        min = strtoull(&line[6], NULL, 10);
+                else if (strncmp(line, "DEVMODE=", 8) == 0)
+                        udev_device->devnode_mode = strtoul(&line[8], NULL, 8);
+
+                udev_device_add_property_from_string(udev_device, line);
+        }
+
+        udev_device->devnum = makedev(maj, min);
+        fclose(f);
+        return 0;
 }
 
 void udev_device_set_info_loaded(struct udev_device *device)
 {
-	device->info_loaded = true;
+        device->info_loaded = true;
 }
 
 struct udev_device *udev_device_new(struct udev *udev)
 {
-	struct udev_device *udev_device;
-	struct udev_list_entry *list_entry;
-
-	if (udev == NULL)
-		return NULL;
-
-	udev_device = calloc(1, sizeof(struct udev_device));
-	if (udev_device == NULL)
-		return NULL;
-	udev_device->refcount = 1;
-	udev_device->udev = udev;
-	udev_list_init(udev, &udev_device->devlinks_list, true);
-	udev_list_init(udev, &udev_device->properties_list, true);
-	udev_list_init(udev, &udev_device->sysattr_value_list, true);
-	udev_list_init(udev, &udev_device->sysattr_list, false);
-	udev_list_init(udev, &udev_device->tags_list, true);
-	udev_device->watch_handle = -1;
-	/* copy global properties */
-	udev_list_entry_foreach(list_entry, udev_get_properties_list_entry(udev))
-		udev_device_add_property(udev_device,
-					 udev_list_entry_get_name(list_entry),
-					 udev_list_entry_get_value(list_entry));
-	dbg(udev_device->udev, "udev_device: %p created\n", udev_device);
-	return udev_device;
+        struct udev_device *udev_device;
+        struct udev_list_entry *list_entry;
+
+        if (udev == NULL)
+                return NULL;
+
+        udev_device = calloc(1, sizeof(struct udev_device));
+        if (udev_device == NULL)
+                return NULL;
+        udev_device->refcount = 1;
+        udev_device->udev = udev;
+        udev_list_init(udev, &udev_device->devlinks_list, true);
+        udev_list_init(udev, &udev_device->properties_list, true);
+        udev_list_init(udev, &udev_device->sysattr_value_list, true);
+        udev_list_init(udev, &udev_device->sysattr_list, false);
+        udev_list_init(udev, &udev_device->tags_list, true);
+        udev_device->watch_handle = -1;
+        /* copy global properties */
+        udev_list_entry_foreach(list_entry, udev_get_properties_list_entry(udev))
+                udev_device_add_property(udev_device,
+                                         udev_list_entry_get_name(list_entry),
+                                         udev_list_entry_get_value(list_entry));
+        dbg(udev_device->udev, "udev_device: %p created\n", udev_device);
+        return udev_device;
 }
 
 /**
@@ -618,62 +625,62 @@ struct udev_device *udev_device_new(struct udev *udev)
  **/
 UDEV_EXPORT struct udev_device *udev_device_new_from_syspath(struct udev *udev, const char *syspath)
 {
-	size_t len;
-	const char *subdir;
-	char path[UTIL_PATH_SIZE];
-	char *pos;
-	struct stat statbuf;
-	struct udev_device *udev_device;
-
-	if (udev == NULL)
-		return NULL;
-	if (syspath == NULL)
-		return NULL;
-
-	/* path starts in sys */
-	len = strlen(udev_get_sys_path(udev));
-	if (strncmp(syspath, udev_get_sys_path(udev), len) != 0) {
-		info(udev, "not in sys :%s\n", syspath);
-		return NULL;
-	}
-
-	/* path is not a root directory */
-	subdir = &syspath[len+1];
-	pos = strrchr(subdir, '/');
-	if (pos == NULL || pos[1] == '\0' || pos < &subdir[2]) {
-		dbg(udev, "not a subdir :%s\n", syspath);
-		return NULL;
-	}
-
-	/* resolve possible symlink to real path */
-	util_strscpy(path, sizeof(path), syspath);
-	util_resolve_sys_link(udev, path, sizeof(path));
-
-	if (strncmp(&path[len], "/devices/", 9) == 0) {
-		char file[UTIL_PATH_SIZE];
-
-		/* all "devices" require a "uevent" file */
-		util_strscpyl(file, sizeof(file), path, "/uevent", NULL);
-		if (stat(file, &statbuf) != 0) {
-			dbg(udev, "not a device: %s\n", syspath);
-			return NULL;
-		}
-	} else {
-		/* everything else just needs to be a directory */
-		if (stat(path, &statbuf) != 0 || !S_ISDIR(statbuf.st_mode)) {
-			dbg(udev, "directory not found: %s\n", syspath);
-			return NULL;
-		}
-	}
-
-	udev_device = udev_device_new(udev);
-	if (udev_device == NULL)
-		return NULL;
-
-	udev_device_set_syspath(udev_device, path);
-	info(udev, "device %p has devpath '%s'\n", udev_device, udev_device_get_devpath(udev_device));
-
-	return udev_device;
+        size_t len;
+        const char *subdir;
+        char path[UTIL_PATH_SIZE];
+        char *pos;
+        struct stat statbuf;
+        struct udev_device *udev_device;
+
+        if (udev == NULL)
+                return NULL;
+        if (syspath == NULL)
+                return NULL;
+
+        /* path starts in sys */
+        len = strlen(udev_get_sys_path(udev));
+        if (strncmp(syspath, udev_get_sys_path(udev), len) != 0) {
+                info(udev, "not in sys :%s\n", syspath);
+                return NULL;
+        }
+
+        /* path is not a root directory */
+        subdir = &syspath[len+1];
+        pos = strrchr(subdir, '/');
+        if (pos == NULL || pos[1] == '\0' || pos < &subdir[2]) {
+                dbg(udev, "not a subdir :%s\n", syspath);
+                return NULL;
+        }
+
+        /* resolve possible symlink to real path */
+        util_strscpy(path, sizeof(path), syspath);
+        util_resolve_sys_link(udev, path, sizeof(path));
+
+        if (strncmp(&path[len], "/devices/", 9) == 0) {
+                char file[UTIL_PATH_SIZE];
+
+                /* all "devices" require a "uevent" file */
+                util_strscpyl(file, sizeof(file), path, "/uevent", NULL);
+                if (stat(file, &statbuf) != 0) {
+                        dbg(udev, "not a device: %s\n", syspath);
+                        return NULL;
+                }
+        } else {
+                /* everything else just needs to be a directory */
+                if (stat(path, &statbuf) != 0 || !S_ISDIR(statbuf.st_mode)) {
+                        dbg(udev, "directory not found: %s\n", syspath);
+                        return NULL;
+                }
+        }
+
+        udev_device = udev_device_new(udev);
+        if (udev_device == NULL)
+                return NULL;
+
+        udev_device_set_syspath(udev_device, path);
+        info(udev, "device %p has devpath '%s'\n", udev_device, udev_device_get_devpath(udev_device));
+
+        return udev_device;
 }
 
 /**
@@ -694,75 +701,75 @@ UDEV_EXPORT struct udev_device *udev_device_new_from_syspath(struct udev *udev,
  **/
 UDEV_EXPORT struct udev_device *udev_device_new_from_devnum(struct udev *udev, char type, dev_t devnum)
 {
-	char path[UTIL_PATH_SIZE];
-	const char *type_str;
+        char path[UTIL_PATH_SIZE];
+        const char *type_str;
 
-	if (type == 'b')
-		type_str = "block";
-	else if (type == 'c')
-		type_str = "char";
-	else
-		return NULL;
+        if (type == 'b')
+                type_str = "block";
+        else if (type == 'c')
+                type_str = "char";
+        else
+                return NULL;
 
-	/* use /sys/dev/{block,char}/<maj>:<min> link */
-	snprintf(path, sizeof(path), "%s/dev/%s/%u:%u",
-		 udev_get_sys_path(udev), type_str, major(devnum), minor(devnum));
-	return udev_device_new_from_syspath(udev, path);
+        /* use /sys/dev/{block,char}/<maj>:<min> link */
+        snprintf(path, sizeof(path), "%s/dev/%s/%u:%u",
+                 udev_get_sys_path(udev), type_str, major(devnum), minor(devnum));
+        return udev_device_new_from_syspath(udev, path);
 }
 
 struct udev_device *udev_device_new_from_id_filename(struct udev *udev, char *id)
 {
-	char type;
-	int maj, min;
-	char subsys[UTIL_PATH_SIZE];
-	char *sysname;
-
-	switch(id[0]) {
-	case 'b':
-	case 'c':
-		if (sscanf(id, "%c%i:%i", &type, &maj, &min) != 3)
-			return NULL;
-		return udev_device_new_from_devnum(udev, type, makedev(maj, min));
-	case 'n': {
-		int sk;
-		struct ifreq ifr;
-		struct udev_device *dev;
-		int ifindex;
-
-		ifindex = strtoul(&id[1], NULL, 10);
-		if (ifindex <= 0)
-			return NULL;
-
-		sk = socket(PF_INET, SOCK_DGRAM, 0);
-		if (sk < 0)
-			return NULL;
-		memset(&ifr, 0x00, sizeof(struct ifreq));
-		ifr.ifr_ifindex = ifindex;
-		if (ioctl(sk, SIOCGIFNAME, &ifr) != 0) {
-			close(sk);
-			return NULL;
-		}
-		close(sk);
-
-		dev = udev_device_new_from_subsystem_sysname(udev, "net", ifr.ifr_name);
-		if (dev == NULL)
-			return NULL;
-		if (udev_device_get_ifindex(dev) == ifindex)
-			return dev;
-		udev_device_unref(dev);
-		return NULL;
-	}
-	case '+':
-		util_strscpy(subsys, sizeof(subsys), &id[1]);
-		sysname = strchr(subsys, ':');
-		if (sysname == NULL)
-			return NULL;
-		sysname[0] = '\0';
-		sysname = &sysname[1];
-		return udev_device_new_from_subsystem_sysname(udev, subsys, sysname);
-	default:
-		return NULL;
-	}
+        char type;
+        int maj, min;
+        char subsys[UTIL_PATH_SIZE];
+        char *sysname;
+
+        switch(id[0]) {
+        case 'b':
+        case 'c':
+                if (sscanf(id, "%c%i:%i", &type, &maj, &min) != 3)
+                        return NULL;
+                return udev_device_new_from_devnum(udev, type, makedev(maj, min));
+        case 'n': {
+                int sk;
+                struct ifreq ifr;
+                struct udev_device *dev;
+                int ifindex;
+
+                ifindex = strtoul(&id[1], NULL, 10);
+                if (ifindex <= 0)
+                        return NULL;
+
+                sk = socket(PF_INET, SOCK_DGRAM, 0);
+                if (sk < 0)
+                        return NULL;
+                memset(&ifr, 0x00, sizeof(struct ifreq));
+                ifr.ifr_ifindex = ifindex;
+                if (ioctl(sk, SIOCGIFNAME, &ifr) != 0) {
+                        close(sk);
+                        return NULL;
+                }
+                close(sk);
+
+                dev = udev_device_new_from_subsystem_sysname(udev, "net", ifr.ifr_name);
+                if (dev == NULL)
+                        return NULL;
+                if (udev_device_get_ifindex(dev) == ifindex)
+                        return dev;
+                udev_device_unref(dev);
+                return NULL;
+        }
+        case '+':
+                util_strscpy(subsys, sizeof(subsys), &id[1]);
+                sysname = strchr(subsys, ':');
+                if (sysname == NULL)
+                        return NULL;
+                sysname[0] = '\0';
+                sysname = &sysname[1];
+                return udev_device_new_from_subsystem_sysname(udev, subsys, sysname);
+        default:
+                return NULL;
+        }
 }
 
 /**
@@ -782,72 +789,72 @@ struct udev_device *udev_device_new_from_id_filename(struct udev *udev, char *id
  **/
 UDEV_EXPORT struct udev_device *udev_device_new_from_subsystem_sysname(struct udev *udev, const char *subsystem, const char *sysname)
 {
-	char path_full[UTIL_PATH_SIZE];
-	char *path;
-	size_t l;
-	struct stat statbuf;
-
-	path = path_full;
-	l = util_strpcpyl(&path, sizeof(path_full), udev_get_sys_path(udev), NULL);
-
-	if (strcmp(subsystem, "subsystem") == 0) {
-		util_strscpyl(path, l, "/subsystem/", sysname, NULL);
-		if (stat(path_full, &statbuf) == 0)
-			goto found;
-
-		util_strscpyl(path, l, "/bus/", sysname, NULL);
-		if (stat(path_full, &statbuf) == 0)
-			goto found;
-
-		util_strscpyl(path, l, "/class/", sysname, NULL);
-		if (stat(path_full, &statbuf) == 0)
-			goto found;
-		goto out;
-	}
-
-	if (strcmp(subsystem, "module") == 0) {
-		util_strscpyl(path, l, "/module/", sysname, NULL);
-		if (stat(path_full, &statbuf) == 0)
-			goto found;
-		goto out;
-	}
-
-	if (strcmp(subsystem, "drivers") == 0) {
-		char subsys[UTIL_NAME_SIZE];
-		char *driver;
-
-		util_strscpy(subsys, sizeof(subsys), sysname);
-		driver = strchr(subsys, ':');
-		if (driver != NULL) {
-			driver[0] = '\0';
-			driver = &driver[1];
-
-			util_strscpyl(path, l, "/subsystem/", subsys, "/drivers/", driver, NULL);
-			if (stat(path_full, &statbuf) == 0)
-				goto found;
-
-			util_strscpyl(path, l, "/bus/", subsys, "/drivers/", driver, NULL);
-			if (stat(path_full, &statbuf) == 0)
-				goto found;
-		}
-		goto out;
-	}
-
-	util_strscpyl(path, l, "/subsystem/", subsystem, "/devices/", sysname, NULL);
-	if (stat(path_full, &statbuf) == 0)
-		goto found;
-
-	util_strscpyl(path, l, "/bus/", subsystem, "/devices/", sysname, NULL);
-	if (stat(path_full, &statbuf) == 0)
-		goto found;
-
-	util_strscpyl(path, l, "/class/", subsystem, "/", sysname, NULL);
-	if (stat(path_full, &statbuf) == 0)
-		goto found;
+        char path_full[UTIL_PATH_SIZE];
+        char *path;
+        size_t l;
+        struct stat statbuf;
+
+        path = path_full;
+        l = util_strpcpyl(&path, sizeof(path_full), udev_get_sys_path(udev), NULL);
+
+        if (strcmp(subsystem, "subsystem") == 0) {
+                util_strscpyl(path, l, "/subsystem/", sysname, NULL);
+                if (stat(path_full, &statbuf) == 0)
+                        goto found;
+
+                util_strscpyl(path, l, "/bus/", sysname, NULL);
+                if (stat(path_full, &statbuf) == 0)
+                        goto found;
+
+                util_strscpyl(path, l, "/class/", sysname, NULL);
+                if (stat(path_full, &statbuf) == 0)
+                        goto found;
+                goto out;
+        }
+
+        if (strcmp(subsystem, "module") == 0) {
+                util_strscpyl(path, l, "/module/", sysname, NULL);
+                if (stat(path_full, &statbuf) == 0)
+                        goto found;
+                goto out;
+        }
+
+        if (strcmp(subsystem, "drivers") == 0) {
+                char subsys[UTIL_NAME_SIZE];
+                char *driver;
+
+                util_strscpy(subsys, sizeof(subsys), sysname);
+                driver = strchr(subsys, ':');
+                if (driver != NULL) {
+                        driver[0] = '\0';
+                        driver = &driver[1];
+
+                        util_strscpyl(path, l, "/subsystem/", subsys, "/drivers/", driver, NULL);
+                        if (stat(path_full, &statbuf) == 0)
+                                goto found;
+
+                        util_strscpyl(path, l, "/bus/", subsys, "/drivers/", driver, NULL);
+                        if (stat(path_full, &statbuf) == 0)
+                                goto found;
+                }
+                goto out;
+        }
+
+        util_strscpyl(path, l, "/subsystem/", subsystem, "/devices/", sysname, NULL);
+        if (stat(path_full, &statbuf) == 0)
+                goto found;
+
+        util_strscpyl(path, l, "/bus/", subsystem, "/devices/", sysname, NULL);
+        if (stat(path_full, &statbuf) == 0)
+                goto found;
+
+        util_strscpyl(path, l, "/class/", subsystem, "/", sysname, NULL);
+        if (stat(path_full, &statbuf) == 0)
+                goto found;
 out:
-	return NULL;
+        return NULL;
 found:
-	return udev_device_new_from_syspath(udev, path_full);
+        return udev_device_new_from_syspath(udev, path_full);
 }
 
 /**
@@ -866,46 +873,46 @@ found:
  **/
 UDEV_EXPORT struct udev_device *udev_device_new_from_environment(struct udev *udev)
 {
-	int i;
-	struct udev_device *udev_device;
+        int i;
+        struct udev_device *udev_device;
 
-	udev_device = udev_device_new(udev);
-	if (udev_device == NULL)
-		return NULL;
-	udev_device_set_info_loaded(udev_device);
+        udev_device = udev_device_new(udev);
+        if (udev_device == NULL)
+                return NULL;
+        udev_device_set_info_loaded(udev_device);
 
-	for (i = 0; environ[i] != NULL; i++)
-		udev_device_add_property_from_string_parse(udev_device, environ[i]);
+        for (i = 0; environ[i] != NULL; i++)
+                udev_device_add_property_from_string_parse(udev_device, environ[i]);
 
-	if (udev_device_add_property_from_string_parse_finish(udev_device) < 0) {
-		info(udev, "missing values, invalid device\n");
-		udev_device_unref(udev_device);
-		udev_device = NULL;
-	}
+        if (udev_device_add_property_from_string_parse_finish(udev_device) < 0) {
+                info(udev, "missing values, invalid device\n");
+                udev_device_unref(udev_device);
+                udev_device = NULL;
+        }
 
-	return udev_device;
+        return udev_device;
 }
 
 static struct udev_device *device_new_from_parent(struct udev_device *udev_device)
 {
-	struct udev_device *udev_device_parent = NULL;
-	char path[UTIL_PATH_SIZE];
-	const char *subdir;
+        struct udev_device *udev_device_parent = NULL;
+        char path[UTIL_PATH_SIZE];
+        const char *subdir;
 
-	util_strscpy(path, sizeof(path), udev_device->syspath);
-	subdir = &path[strlen(udev_get_sys_path(udev_device->udev))+1];
-	for (;;) {
-		char *pos;
+        util_strscpy(path, sizeof(path), udev_device->syspath);
+        subdir = &path[strlen(udev_get_sys_path(udev_device->udev))+1];
+        for (;;) {
+                char *pos;
 
-		pos = strrchr(subdir, '/');
-		if (pos == NULL || pos < &subdir[2])
-			break;
-		pos[0] = '\0';
-		udev_device_parent = udev_device_new_from_syspath(udev_device->udev, path);
-		if (udev_device_parent != NULL)
-			return udev_device_parent;
-	}
-	return NULL;
+                pos = strrchr(subdir, '/');
+                if (pos == NULL || pos < &subdir[2])
+                        break;
+                pos[0] = '\0';
+                udev_device_parent = udev_device_new_from_syspath(udev_device->udev, path);
+                if (udev_device_parent != NULL)
+                        return udev_device_parent;
+        }
+        return NULL;
 }
 
 /**
@@ -929,15 +936,15 @@ static struct udev_device *device_new_from_parent(struct udev_device *udev_devic
  **/
 UDEV_EXPORT struct udev_device *udev_device_get_parent(struct udev_device *udev_device)
 {
-	if (udev_device == NULL)
-		return NULL;
-	if (!udev_device->parent_set) {
-		udev_device->parent_set = true;
-		udev_device->parent_device = device_new_from_parent(udev_device);
-	}
-	if (udev_device->parent_device != NULL)
-		dbg(udev_device->udev, "returning existing parent %p\n", udev_device->parent_device);
-	return udev_device->parent_device;
+        if (udev_device == NULL)
+                return NULL;
+        if (!udev_device->parent_set) {
+                udev_device->parent_set = true;
+                udev_device->parent_device = device_new_from_parent(udev_device);
+        }
+        if (udev_device->parent_device != NULL)
+                dbg(udev_device->udev, "returning existing parent %p\n", udev_device->parent_device);
+        return udev_device->parent_device;
 }
 
 /**
@@ -964,27 +971,27 @@ UDEV_EXPORT struct udev_device *udev_device_get_parent(struct udev_device *udev_
  **/
 UDEV_EXPORT struct udev_device *udev_device_get_parent_with_subsystem_devtype(struct udev_device *udev_device, const char *subsystem, const char *devtype)
 {
-	struct udev_device *parent;
+        struct udev_device *parent;
 
-	if (subsystem == NULL)
-		return NULL;
+        if (subsystem == NULL)
+                return NULL;
 
-	parent = udev_device_get_parent(udev_device);
-	while (parent != NULL) {
-		const char *parent_subsystem;
-		const char *parent_devtype;
+        parent = udev_device_get_parent(udev_device);
+        while (parent != NULL) {
+                const char *parent_subsystem;
+                const char *parent_devtype;
 
-		parent_subsystem = udev_device_get_subsystem(parent);
-		if (parent_subsystem != NULL && strcmp(parent_subsystem, subsystem) == 0) {
-			if (devtype == NULL)
-				break;
-			parent_devtype = udev_device_get_devtype(parent);
-			if (parent_devtype != NULL && strcmp(parent_devtype, devtype) == 0)
-				break;
-		}
-		parent = udev_device_get_parent(parent);
-	}
-	return parent;
+                parent_subsystem = udev_device_get_subsystem(parent);
+                if (parent_subsystem != NULL && strcmp(parent_subsystem, subsystem) == 0) {
+                        if (devtype == NULL)
+                                break;
+                        parent_devtype = udev_device_get_devtype(parent);
+                        if (parent_devtype != NULL && strcmp(parent_devtype, devtype) == 0)
+                                break;
+                }
+                parent = udev_device_get_parent(parent);
+        }
+        return parent;
 }
 
 /**
@@ -997,9 +1004,9 @@ UDEV_EXPORT struct udev_device *udev_device_get_parent_with_subsystem_devtype(st
  **/
 UDEV_EXPORT struct udev *udev_device_get_udev(struct udev_device *udev_device)
 {
-	if (udev_device == NULL)
-		return NULL;
-	return udev_device->udev;
+        if (udev_device == NULL)
+                return NULL;
+        return udev_device->udev;
 }
 
 /**
@@ -1012,10 +1019,10 @@ UDEV_EXPORT struct udev *udev_device_get_udev(struct udev_device *udev_device)
  **/
 UDEV_EXPORT struct udev_device *udev_device_ref(struct udev_device *udev_device)
 {
-	if (udev_device == NULL)
-		return NULL;
-	udev_device->refcount++;
-	return udev_device;
+        if (udev_device == NULL)
+                return NULL;
+        udev_device->refcount++;
+        return udev_device;
 }
 
 /**
@@ -1028,31 +1035,31 @@ UDEV_EXPORT struct udev_device *udev_device_ref(struct udev_device *udev_device)
  **/
 UDEV_EXPORT void udev_device_unref(struct udev_device *udev_device)
 {
-	if (udev_device == NULL)
-		return;
-	udev_device->refcount--;
-	if (udev_device->refcount > 0)
-		return;
-	if (udev_device->parent_device != NULL)
-		udev_device_unref(udev_device->parent_device);
-	free(udev_device->syspath);
-	free(udev_device->sysname);
-	free(udev_device->devnode);
-	free(udev_device->subsystem);
-	free(udev_device->devtype);
-	udev_list_cleanup(&udev_device->devlinks_list);
-	udev_list_cleanup(&udev_device->properties_list);
-	udev_list_cleanup(&udev_device->sysattr_value_list);
-	udev_list_cleanup(&udev_device->sysattr_list);
-	udev_list_cleanup(&udev_device->tags_list);
-	free(udev_device->action);
-	free(udev_device->driver);
-	free(udev_device->devpath_old);
-	free(udev_device->id_filename);
-	free(udev_device->envp);
-	free(udev_device->monitor_buf);
-	dbg(udev_device->udev, "udev_device: %p released\n", udev_device);
-	free(udev_device);
+        if (udev_device == NULL)
+                return;
+        udev_device->refcount--;
+        if (udev_device->refcount > 0)
+                return;
+        if (udev_device->parent_device != NULL)
+                udev_device_unref(udev_device->parent_device);
+        free(udev_device->syspath);
+        free(udev_device->sysname);
+        free(udev_device->devnode);
+        free(udev_device->subsystem);
+        free(udev_device->devtype);
+        udev_list_cleanup(&udev_device->devlinks_list);
+        udev_list_cleanup(&udev_device->properties_list);
+        udev_list_cleanup(&udev_device->sysattr_value_list);
+        udev_list_cleanup(&udev_device->sysattr_list);
+        udev_list_cleanup(&udev_device->tags_list);
+        free(udev_device->action);
+        free(udev_device->driver);
+        free(udev_device->devpath_old);
+        free(udev_device->id_filename);
+        free(udev_device->envp);
+        free(udev_device->monitor_buf);
+        dbg(udev_device->udev, "udev_device: %p released\n", udev_device);
+        free(udev_device);
 }
 
 /**
@@ -1066,9 +1073,9 @@ UDEV_EXPORT void udev_device_unref(struct udev_device *udev_device)
  **/
 UDEV_EXPORT const char *udev_device_get_devpath(struct udev_device *udev_device)
 {
-	if (udev_device == NULL)
-		return NULL;
-	return udev_device->devpath;
+        if (udev_device == NULL)
+                return NULL;
+        return udev_device->devpath;
 }
 
 /**
@@ -1082,9 +1089,9 @@ UDEV_EXPORT const char *udev_device_get_devpath(struct udev_device *udev_device)
  **/
 UDEV_EXPORT const char *udev_device_get_syspath(struct udev_device *udev_device)
 {
-	if (udev_device == NULL)
-		return NULL;
-	return udev_device->syspath;
+        if (udev_device == NULL)
+                return NULL;
+        return udev_device->syspath;
 }
 
 /**
@@ -1095,9 +1102,9 @@ UDEV_EXPORT const char *udev_device_get_syspath(struct udev_device *udev_device)
  **/
 UDEV_EXPORT const char *udev_device_get_sysname(struct udev_device *udev_device)
 {
-	if (udev_device == NULL)
-		return NULL;
-	return udev_device->sysname;
+        if (udev_device == NULL)
+                return NULL;
+        return udev_device->sysname;
 }
 
 /**
@@ -1108,9 +1115,9 @@ UDEV_EXPORT const char *udev_device_get_sysname(struct udev_device *udev_device)
  **/
 UDEV_EXPORT const char *udev_device_get_sysnum(struct udev_device *udev_device)
 {
-	if (udev_device == NULL)
-		return NULL;
-	return udev_device->sysnum;
+        if (udev_device == NULL)
+                return NULL;
+        return udev_device->sysnum;
 }
 
 /**
@@ -1124,13 +1131,13 @@ UDEV_EXPORT const char *udev_device_get_sysnum(struct udev_device *udev_device)
  **/
 UDEV_EXPORT const char *udev_device_get_devnode(struct udev_device *udev_device)
 {
-	if (udev_device == NULL)
-		return NULL;
-	if (udev_device->devnode != NULL)
-		return udev_device->devnode;
-	if (!udev_device->info_loaded)
-		udev_device_read_uevent_file(udev_device);
-	return udev_device->devnode;
+        if (udev_device == NULL)
+                return NULL;
+        if (udev_device->devnode != NULL)
+                return udev_device->devnode;
+        if (!udev_device->info_loaded)
+                udev_device_read_uevent_file(udev_device);
+        return udev_device->devnode;
 }
 
 /**
@@ -1148,17 +1155,17 @@ UDEV_EXPORT const char *udev_device_get_devnode(struct udev_device *udev_device)
  **/
 UDEV_EXPORT struct udev_list_entry *udev_device_get_devlinks_list_entry(struct udev_device *udev_device)
 {
-	if (udev_device == NULL)
-		return NULL;
-	if (!udev_device->info_loaded)
-		udev_device_read_db(udev_device, NULL);
-	return udev_list_get_entry(&udev_device->devlinks_list);
+        if (udev_device == NULL)
+                return NULL;
+        if (!udev_device->info_loaded)
+                udev_device_read_db(udev_device, NULL);
+        return udev_list_get_entry(&udev_device->devlinks_list);
 }
 
 void udev_device_cleanup_devlinks_list(struct udev_device *udev_device)
 {
-	udev_device->devlinks_uptodate = false;
-	udev_list_cleanup(&udev_device->devlinks_list);
+        udev_device->devlinks_uptodate = false;
+        udev_list_cleanup(&udev_device->devlinks_list);
 }
 
 /**
@@ -1175,45 +1182,45 @@ void udev_device_cleanup_devlinks_list(struct udev_device *udev_device)
  **/
 UDEV_EXPORT struct udev_list_entry *udev_device_get_properties_list_entry(struct udev_device *udev_device)
 {
-	if (udev_device == NULL)
-		return NULL;
-	if (!udev_device->info_loaded) {
-		udev_device_read_uevent_file(udev_device);
-		udev_device_read_db(udev_device, NULL);
-	}
-	if (!udev_device->devlinks_uptodate) {
-		char symlinks[UTIL_PATH_SIZE];
-		struct udev_list_entry *list_entry;
-
-		udev_device->devlinks_uptodate = true;
-		list_entry = udev_device_get_devlinks_list_entry(udev_device);
-		if (list_entry != NULL) {
-			char *s;
-			size_t l;
-
-			s = symlinks;
-			l = util_strpcpyl(&s, sizeof(symlinks), udev_list_entry_get_name(list_entry), NULL);
-			udev_list_entry_foreach(list_entry, udev_list_entry_get_next(list_entry))
-				l = util_strpcpyl(&s, l, " ", udev_list_entry_get_name(list_entry), NULL);
-			udev_device_add_property(udev_device, "DEVLINKS", symlinks);
-		}
-	}
-	if (!udev_device->tags_uptodate) {
-		udev_device->tags_uptodate = true;
-		if (udev_device_get_tags_list_entry(udev_device) != NULL) {
-			char tags[UTIL_PATH_SIZE];
-			struct udev_list_entry *list_entry;
-			char *s;
-			size_t l;
-
-			s = tags;
-			l = util_strpcpyl(&s, sizeof(tags), ":", NULL);
-			udev_list_entry_foreach(list_entry, udev_device_get_tags_list_entry(udev_device))
-				l = util_strpcpyl(&s, l, udev_list_entry_get_name(list_entry), ":", NULL);
-			udev_device_add_property(udev_device, "TAGS", tags);
-		}
-	}
-	return udev_list_get_entry(&udev_device->properties_list);
+        if (udev_device == NULL)
+                return NULL;
+        if (!udev_device->info_loaded) {
+                udev_device_read_uevent_file(udev_device);
+                udev_device_read_db(udev_device, NULL);
+        }
+        if (!udev_device->devlinks_uptodate) {
+                char symlinks[UTIL_PATH_SIZE];
+                struct udev_list_entry *list_entry;
+
+                udev_device->devlinks_uptodate = true;
+                list_entry = udev_device_get_devlinks_list_entry(udev_device);
+                if (list_entry != NULL) {
+                        char *s;
+                        size_t l;
+
+                        s = symlinks;
+                        l = util_strpcpyl(&s, sizeof(symlinks), udev_list_entry_get_name(list_entry), NULL);
+                        udev_list_entry_foreach(list_entry, udev_list_entry_get_next(list_entry))
+                                l = util_strpcpyl(&s, l, " ", udev_list_entry_get_name(list_entry), NULL);
+                        udev_device_add_property(udev_device, "DEVLINKS", symlinks);
+                }
+        }
+        if (!udev_device->tags_uptodate) {
+                udev_device->tags_uptodate = true;
+                if (udev_device_get_tags_list_entry(udev_device) != NULL) {
+                        char tags[UTIL_PATH_SIZE];
+                        struct udev_list_entry *list_entry;
+                        char *s;
+                        size_t l;
+
+                        s = tags;
+                        l = util_strpcpyl(&s, sizeof(tags), ":", NULL);
+                        udev_list_entry_foreach(list_entry, udev_device_get_tags_list_entry(udev_device))
+                                l = util_strpcpyl(&s, l, udev_list_entry_get_name(list_entry), ":", NULL);
+                        udev_device_add_property(udev_device, "TAGS", tags);
+                }
+        }
+        return udev_list_get_entry(&udev_device->properties_list);
 }
 
 /**
@@ -1228,9 +1235,9 @@ UDEV_EXPORT struct udev_list_entry *udev_device_get_properties_list_entry(struct
  **/
 UDEV_EXPORT const char *udev_device_get_action(struct udev_device *udev_device)
 {
-	if (udev_device == NULL)
-		return NULL;
-	return udev_device->action;
+        if (udev_device == NULL)
+                return NULL;
+        return udev_device->action;
 }
 
 /**
@@ -1247,32 +1254,32 @@ UDEV_EXPORT const char *udev_device_get_action(struct udev_device *udev_device)
  **/
 UDEV_EXPORT unsigned long long int udev_device_get_usec_since_initialized(struct udev_device *udev_device)
 {
-	unsigned long long now;
+        unsigned long long now;
 
-	if (udev_device == NULL)
-		return 0;
-	if (!udev_device->info_loaded)
-		udev_device_read_db(udev_device, NULL);
-	if (udev_device->usec_initialized == 0)
-		return 0;
-	now = now_usec();
-	if (now == 0)
-		return 0;
-	return now - udev_device->usec_initialized;
+        if (udev_device == NULL)
+                return 0;
+        if (!udev_device->info_loaded)
+                udev_device_read_db(udev_device, NULL);
+        if (udev_device->usec_initialized == 0)
+                return 0;
+        now = now_usec();
+        if (now == 0)
+                return 0;
+        return now - udev_device->usec_initialized;
 }
 
 unsigned long long udev_device_get_usec_initialized(struct udev_device *udev_device)
 {
-	return udev_device->usec_initialized;
+        return udev_device->usec_initialized;
 }
 
 void udev_device_set_usec_initialized(struct udev_device *udev_device, unsigned long long usec_initialized)
 {
-	char num[32];
+        char num[32];
 
-	udev_device->usec_initialized = usec_initialized;
-	snprintf(num, sizeof(num), "%llu", usec_initialized);
-	udev_device_add_property(udev_device, "USEC_INITIALIZED", num);
+        udev_device->usec_initialized = usec_initialized;
+        snprintf(num, sizeof(num), "%llu", usec_initialized);
+        udev_device_add_property(udev_device, "USEC_INITIALIZED", num);
 }
 
 /**
@@ -1287,139 +1294,139 @@ void udev_device_set_usec_initialized(struct udev_device *udev_device, unsigned
  **/
 UDEV_EXPORT const char *udev_device_get_sysattr_value(struct udev_device *udev_device, const char *sysattr)
 {
-	struct udev_list_entry *list_entry;
-	char path[UTIL_PATH_SIZE];
-	char value[4096];
-	struct stat statbuf;
-	int fd;
-	ssize_t size;
-	const char *val = NULL;
-
-	if (udev_device == NULL)
-		return NULL;
-	if (sysattr == NULL)
-		return NULL;
-
-	/* look for possibly already cached result */
-	list_entry = udev_list_get_entry(&udev_device->sysattr_value_list);
-	list_entry = udev_list_entry_get_by_name(list_entry, sysattr);
-	if (list_entry != NULL) {
-		dbg(udev_device->udev, "got '%s' (%s) from cache\n",
-		    sysattr, udev_list_entry_get_value(list_entry));
-		return udev_list_entry_get_value(list_entry);
-	}
-
-	util_strscpyl(path, sizeof(path), udev_device_get_syspath(udev_device), "/", sysattr, NULL);
-	if (lstat(path, &statbuf) != 0) {
-		dbg(udev_device->udev, "no attribute '%s', keep negative entry\n", path);
-		udev_list_entry_add(&udev_device->sysattr_value_list, sysattr, NULL);
-		goto out;
-	}
-
-	if (S_ISLNK(statbuf.st_mode)) {
-		struct udev_device *dev;
-
-		/*
-		 * Some core links return only the last element of the target path,
-		 * these are just values, the paths should not be exposed.
-		 */
-		if (strcmp(sysattr, "driver") == 0 ||
-		    strcmp(sysattr, "subsystem") == 0 ||
-		    strcmp(sysattr, "module") == 0) {
-			if (util_get_sys_core_link_value(udev_device->udev, sysattr,
-							 udev_device->syspath, value, sizeof(value)) < 0)
-				return NULL;
-			dbg(udev_device->udev, "cache '%s' with link value '%s'\n", sysattr, value);
-			list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr, value);
-			val = udev_list_entry_get_value(list_entry);
-			goto out;
-		}
-
-		/* resolve link to a device and return its syspath */
-		util_strscpyl(path, sizeof(path), udev_device->syspath, "/", sysattr, NULL);
-		dev = udev_device_new_from_syspath(udev_device->udev, path);
-		if (dev != NULL) {
-			list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr,
-							 udev_device_get_syspath(dev));
-			val = udev_list_entry_get_value(list_entry);
-			udev_device_unref(dev);
-		}
-
-		goto out;
-	}
-
-	/* skip directories */
-	if (S_ISDIR(statbuf.st_mode))
-		goto out;
-
-	/* skip non-readable files */
-	if ((statbuf.st_mode & S_IRUSR) == 0)
-		goto out;
-
-	/* read attribute value */
-	fd = open(path, O_RDONLY|O_CLOEXEC);
-	if (fd < 0) {
-		dbg(udev_device->udev, "attribute '%s' can not be opened\n", path);
-		goto out;
-	}
-	size = read(fd, value, sizeof(value));
-	close(fd);
-	if (size < 0)
-		goto out;
-	if (size == sizeof(value))
-		goto out;
-
-	/* got a valid value, store it in cache and return it */
-	value[size] = '\0';
-	util_remove_trailing_chars(value, '\n');
-	dbg(udev_device->udev, "'%s' has attribute value '%s'\n", path, value);
-	list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr, value);
-	val = udev_list_entry_get_value(list_entry);
+        struct udev_list_entry *list_entry;
+        char path[UTIL_PATH_SIZE];
+        char value[4096];
+        struct stat statbuf;
+        int fd;
+        ssize_t size;
+        const char *val = NULL;
+
+        if (udev_device == NULL)
+                return NULL;
+        if (sysattr == NULL)
+                return NULL;
+
+        /* look for possibly already cached result */
+        list_entry = udev_list_get_entry(&udev_device->sysattr_value_list);
+        list_entry = udev_list_entry_get_by_name(list_entry, sysattr);
+        if (list_entry != NULL) {
+                dbg(udev_device->udev, "got '%s' (%s) from cache\n",
+                    sysattr, udev_list_entry_get_value(list_entry));
+                return udev_list_entry_get_value(list_entry);
+        }
+
+        util_strscpyl(path, sizeof(path), udev_device_get_syspath(udev_device), "/", sysattr, NULL);
+        if (lstat(path, &statbuf) != 0) {
+                dbg(udev_device->udev, "no attribute '%s', keep negative entry\n", path);
+                udev_list_entry_add(&udev_device->sysattr_value_list, sysattr, NULL);
+                goto out;
+        }
+
+        if (S_ISLNK(statbuf.st_mode)) {
+                struct udev_device *dev;
+
+                /*
+                 * Some core links return only the last element of the target path,
+                 * these are just values, the paths should not be exposed.
+                 */
+                if (strcmp(sysattr, "driver") == 0 ||
+                    strcmp(sysattr, "subsystem") == 0 ||
+                    strcmp(sysattr, "module") == 0) {
+                        if (util_get_sys_core_link_value(udev_device->udev, sysattr,
+                                                         udev_device->syspath, value, sizeof(value)) < 0)
+                                return NULL;
+                        dbg(udev_device->udev, "cache '%s' with link value '%s'\n", sysattr, value);
+                        list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr, value);
+                        val = udev_list_entry_get_value(list_entry);
+                        goto out;
+                }
+
+                /* resolve link to a device and return its syspath */
+                util_strscpyl(path, sizeof(path), udev_device->syspath, "/", sysattr, NULL);
+                dev = udev_device_new_from_syspath(udev_device->udev, path);
+                if (dev != NULL) {
+                        list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr,
+                                                         udev_device_get_syspath(dev));
+                        val = udev_list_entry_get_value(list_entry);
+                        udev_device_unref(dev);
+                }
+
+                goto out;
+        }
+
+        /* skip directories */
+        if (S_ISDIR(statbuf.st_mode))
+                goto out;
+
+        /* skip non-readable files */
+        if ((statbuf.st_mode & S_IRUSR) == 0)
+                goto out;
+
+        /* read attribute value */
+        fd = open(path, O_RDONLY|O_CLOEXEC);
+        if (fd < 0) {
+                dbg(udev_device->udev, "attribute '%s' can not be opened\n", path);
+                goto out;
+        }
+        size = read(fd, value, sizeof(value));
+        close(fd);
+        if (size < 0)
+                goto out;
+        if (size == sizeof(value))
+                goto out;
+
+        /* got a valid value, store it in cache and return it */
+        value[size] = '\0';
+        util_remove_trailing_chars(value, '\n');
+        dbg(udev_device->udev, "'%s' has attribute value '%s'\n", path, value);
+        list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr, value);
+        val = udev_list_entry_get_value(list_entry);
 out:
-	return val;
+        return val;
 }
 
 static int udev_device_sysattr_list_read(struct udev_device *udev_device)
 {
-	struct dirent *dent;
-	DIR *dir;
-	int num = 0;
+        struct dirent *dent;
+        DIR *dir;
+        int num = 0;
 
-	if (udev_device == NULL)
-		return -1;
-	if (udev_device->sysattr_list_read)
-		return 0;
+        if (udev_device == NULL)
+                return -1;
+        if (udev_device->sysattr_list_read)
+                return 0;
 
-	dir = opendir(udev_device_get_syspath(udev_device));
-	if (!dir) {
-		dbg(udev_device->udev, "sysfs dir '%s' can not be opened\n",
-				udev_device_get_syspath(udev_device));
-		return -1;
-	}
+        dir = opendir(udev_device_get_syspath(udev_device));
+        if (!dir) {
+                dbg(udev_device->udev, "sysfs dir '%s' can not be opened\n",
+                                udev_device_get_syspath(udev_device));
+                return -1;
+        }
 
-	for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
-		char path[UTIL_PATH_SIZE];
-		struct stat statbuf;
+        for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
+                char path[UTIL_PATH_SIZE];
+                struct stat statbuf;
 
-		/* only handle symlinks and regular files */
-		if (dent->d_type != DT_LNK && dent->d_type != DT_REG)
-			continue;
+                /* only handle symlinks and regular files */
+                if (dent->d_type != DT_LNK && dent->d_type != DT_REG)
+                        continue;
 
-		util_strscpyl(path, sizeof(path), udev_device_get_syspath(udev_device), "/", dent->d_name, NULL);
-		if (lstat(path, &statbuf) != 0)
-			continue;
-		if ((statbuf.st_mode & S_IRUSR) == 0)
-			continue;
+                util_strscpyl(path, sizeof(path), udev_device_get_syspath(udev_device), "/", dent->d_name, NULL);
+                if (lstat(path, &statbuf) != 0)
+                        continue;
+                if ((statbuf.st_mode & S_IRUSR) == 0)
+                        continue;
 
-		udev_list_entry_add(&udev_device->sysattr_list, dent->d_name, NULL);
-		num++;
-	}
+                udev_list_entry_add(&udev_device->sysattr_list, dent->d_name, NULL);
+                num++;
+        }
 
-	closedir(dir);
-	dbg(udev_device->udev, "found %d sysattrs for '%s'\n", num, udev_device_get_syspath(udev_device));
-	udev_device->sysattr_list_read = true;
+        closedir(dir);
+        dbg(udev_device->udev, "found %d sysattrs for '%s'\n", num, udev_device_get_syspath(udev_device));
+        udev_device->sysattr_list_read = true;
 
-	return num;
+        return num;
 }
 
 /**
@@ -1434,114 +1441,114 @@ static int udev_device_sysattr_list_read(struct udev_device *udev_device)
  **/
 UDEV_EXPORT struct udev_list_entry *udev_device_get_sysattr_list_entry(struct udev_device *udev_device)
 {
-	if (!udev_device->sysattr_list_read) {
-		int ret;
-		ret = udev_device_sysattr_list_read(udev_device);
-		if (0 > ret)
-			return NULL;
-	}
+        if (!udev_device->sysattr_list_read) {
+                int ret;
+                ret = udev_device_sysattr_list_read(udev_device);
+                if (0 > ret)
+                        return NULL;
+        }
 
-	return udev_list_get_entry(&udev_device->sysattr_list);
+        return udev_list_get_entry(&udev_device->sysattr_list);
 }
 
 int udev_device_set_syspath(struct udev_device *udev_device, const char *syspath)
 {
-	const char *pos;
-	size_t len;
+        const char *pos;
+        size_t len;
 
-	free(udev_device->syspath);
-	udev_device->syspath = strdup(syspath);
-	if (udev_device->syspath ==  NULL)
-		return -ENOMEM;
-	udev_device->devpath = &udev_device->syspath[strlen(udev_get_sys_path(udev_device->udev))];
-	udev_device_add_property(udev_device, "DEVPATH", udev_device->devpath);
+        free(udev_device->syspath);
+        udev_device->syspath = strdup(syspath);
+        if (udev_device->syspath ==  NULL)
+                return -ENOMEM;
+        udev_device->devpath = &udev_device->syspath[strlen(udev_get_sys_path(udev_device->udev))];
+        udev_device_add_property(udev_device, "DEVPATH", udev_device->devpath);
 
-	pos = strrchr(udev_device->syspath, '/');
-	if (pos == NULL)
-		return -EINVAL;
-	udev_device->sysname = strdup(&pos[1]);
-	if (udev_device->sysname == NULL)
-		return -ENOMEM;
+        pos = strrchr(udev_device->syspath, '/');
+        if (pos == NULL)
+                return -EINVAL;
+        udev_device->sysname = strdup(&pos[1]);
+        if (udev_device->sysname == NULL)
+                return -ENOMEM;
 
-	/* some devices have '!' in their name, change that to '/' */
-	len = 0;
-	while (udev_device->sysname[len] != '\0') {
-		if (udev_device->sysname[len] == '!')
-			udev_device->sysname[len] = '/';
-		len++;
-	}
+        /* some devices have '!' in their name, change that to '/' */
+        len = 0;
+        while (udev_device->sysname[len] != '\0') {
+                if (udev_device->sysname[len] == '!')
+                        udev_device->sysname[len] = '/';
+                len++;
+        }
 
-	/* trailing number */
-	while (len > 0 && isdigit(udev_device->sysname[--len]))
-		udev_device->sysnum = &udev_device->sysname[len];
+        /* trailing number */
+        while (len > 0 && isdigit(udev_device->sysname[--len]))
+                udev_device->sysnum = &udev_device->sysname[len];
 
-	/* sysname is completely numeric */
-	if (len == 0)
-		udev_device->sysnum = NULL;
+        /* sysname is completely numeric */
+        if (len == 0)
+                udev_device->sysnum = NULL;
 
-	return 0;
+        return 0;
 }
 
 int udev_device_set_devnode(struct udev_device *udev_device, const char *devnode)
 {
-	free(udev_device->devnode);
-	if (devnode[0] != '/') {
-		if (asprintf(&udev_device->devnode, "%s/%s", udev_get_dev_path(udev_device->udev), devnode) < 0)
-			udev_device->devnode = NULL;
-	} else {
-		udev_device->devnode = strdup(devnode);
-	}
-	if (udev_device->devnode == NULL)
-		return -ENOMEM;
-	udev_device_add_property(udev_device, "DEVNAME", udev_device->devnode);
-	return 0;
+        free(udev_device->devnode);
+        if (devnode[0] != '/') {
+                if (asprintf(&udev_device->devnode, "%s/%s", udev_get_dev_path(udev_device->udev), devnode) < 0)
+                        udev_device->devnode = NULL;
+        } else {
+                udev_device->devnode = strdup(devnode);
+        }
+        if (udev_device->devnode == NULL)
+                return -ENOMEM;
+        udev_device_add_property(udev_device, "DEVNAME", udev_device->devnode);
+        return 0;
 }
 
 int udev_device_add_devlink(struct udev_device *udev_device, const char *devlink, int unique)
 {
-	struct udev_list_entry *list_entry;
+        struct udev_list_entry *list_entry;
 
-	udev_device->devlinks_uptodate = false;
-	list_entry = udev_list_entry_add(&udev_device->devlinks_list, devlink, NULL);
-	if (list_entry == NULL)
-		return -ENOMEM;
-	if (unique)
-		udev_list_entry_set_num(list_entry, true);
-	return 0;
+        udev_device->devlinks_uptodate = false;
+        list_entry = udev_list_entry_add(&udev_device->devlinks_list, devlink, NULL);
+        if (list_entry == NULL)
+                return -ENOMEM;
+        if (unique)
+                udev_list_entry_set_num(list_entry, true);
+        return 0;
 }
 
 const char *udev_device_get_id_filename(struct udev_device *udev_device)
 {
-	if (udev_device->id_filename == NULL) {
-		if (udev_device_get_subsystem(udev_device) == NULL)
-			return NULL;
-
-		if (major(udev_device_get_devnum(udev_device)) > 0) {
-			/* use dev_t -- b259:131072, c254:0 */
-			if (asprintf(&udev_device->id_filename, "%c%u:%u",
-				     strcmp(udev_device_get_subsystem(udev_device), "block") == 0 ? 'b' : 'c',
-				     major(udev_device_get_devnum(udev_device)),
-				     minor(udev_device_get_devnum(udev_device))) < 0)
-				udev_device->id_filename = NULL;
-		} else if (udev_device_get_ifindex(udev_device) > 0) {
-			/* use netdev ifindex -- n3 */
-			if (asprintf(&udev_device->id_filename, "n%u", udev_device_get_ifindex(udev_device)) < 0)
-				udev_device->id_filename = NULL;
-		} else {
-			/*
-			 * use $subsys:$syname -- pci:0000:00:1f.2
-			 * sysname() has '!' translated, get it from devpath
-			 */
-			const char *sysname;
-			sysname = strrchr(udev_device->devpath, '/');
-			if (sysname == NULL)
-				return NULL;
-			sysname = &sysname[1];
-			if (asprintf(&udev_device->id_filename, "+%s:%s", udev_device_get_subsystem(udev_device), sysname) < 0)
-				udev_device->id_filename = NULL;
-		}
-	}
-	return udev_device->id_filename;
+        if (udev_device->id_filename == NULL) {
+                if (udev_device_get_subsystem(udev_device) == NULL)
+                        return NULL;
+
+                if (major(udev_device_get_devnum(udev_device)) > 0) {
+                        /* use dev_t -- b259:131072, c254:0 */
+                        if (asprintf(&udev_device->id_filename, "%c%u:%u",
+                                     strcmp(udev_device_get_subsystem(udev_device), "block") == 0 ? 'b' : 'c',
+                                     major(udev_device_get_devnum(udev_device)),
+                                     minor(udev_device_get_devnum(udev_device))) < 0)
+                                udev_device->id_filename = NULL;
+                } else if (udev_device_get_ifindex(udev_device) > 0) {
+                        /* use netdev ifindex -- n3 */
+                        if (asprintf(&udev_device->id_filename, "n%u", udev_device_get_ifindex(udev_device)) < 0)
+                                udev_device->id_filename = NULL;
+                } else {
+                        /*
+                         * use $subsys:$syname -- pci:0000:00:1f.2
+                         * sysname() has '!' translated, get it from devpath
+                         */
+                        const char *sysname;
+                        sysname = strrchr(udev_device->devpath, '/');
+                        if (sysname == NULL)
+                                return NULL;
+                        sysname = &sysname[1];
+                        if (asprintf(&udev_device->id_filename, "+%s:%s", udev_device_get_subsystem(udev_device), sysname) < 0)
+                                udev_device->id_filename = NULL;
+                }
+        }
+        return udev_device->id_filename;
 }
 
 /**
@@ -1559,30 +1566,30 @@ const char *udev_device_get_id_filename(struct udev_device *udev_device)
  **/
 UDEV_EXPORT int udev_device_get_is_initialized(struct udev_device *udev_device)
 {
-	if (!udev_device->info_loaded)
-		udev_device_read_db(udev_device, NULL);
-	return udev_device->is_initialized;
+        if (!udev_device->info_loaded)
+                udev_device_read_db(udev_device, NULL);
+        return udev_device->is_initialized;
 }
 
 void udev_device_set_is_initialized(struct udev_device *udev_device)
 {
-	udev_device->is_initialized = true;
+        udev_device->is_initialized = true;
 }
 
 int udev_device_add_tag(struct udev_device *udev_device, const char *tag)
 {
-	if (strchr(tag, ':') != NULL || strchr(tag, ' ') != NULL)
-		return -EINVAL;
-	udev_device->tags_uptodate = false;
-	if (udev_list_entry_add(&udev_device->tags_list, tag, NULL) != NULL)
-		return 0;
-	return -ENOMEM;
+        if (strchr(tag, ':') != NULL || strchr(tag, ' ') != NULL)
+                return -EINVAL;
+        udev_device->tags_uptodate = false;
+        if (udev_list_entry_add(&udev_device->tags_list, tag, NULL) != NULL)
+                return 0;
+        return -ENOMEM;
 }
 
 void udev_device_cleanup_tags_list(struct udev_device *udev_device)
 {
-	udev_device->tags_uptodate = false;
-	udev_list_cleanup(&udev_device->tags_list);
+        udev_device->tags_uptodate = false;
+        udev_list_cleanup(&udev_device->tags_list);
 }
 
 /**
@@ -1598,140 +1605,140 @@ void udev_device_cleanup_tags_list(struct udev_device *udev_device)
  **/
 UDEV_EXPORT struct udev_list_entry *udev_device_get_tags_list_entry(struct udev_device *udev_device)
 {
-	if (udev_device == NULL)
-		return NULL;
-	if (!udev_device->info_loaded)
-		udev_device_read_db(udev_device, NULL);
-	return udev_list_get_entry(&udev_device->tags_list);
+        if (udev_device == NULL)
+                return NULL;
+        if (!udev_device->info_loaded)
+                udev_device_read_db(udev_device, NULL);
+        return udev_list_get_entry(&udev_device->tags_list);
 }
 
 UDEV_EXPORT int udev_device_has_tag(struct udev_device *udev_device, const char *tag)
 {
-	struct udev_list_entry *list_entry;
+        struct udev_list_entry *list_entry;
 
-	if (udev_device == NULL)
-		return false;
-	if (!udev_device->info_loaded)
-		udev_device_read_db(udev_device, NULL);
-	list_entry = udev_device_get_tags_list_entry(udev_device);
-	if (udev_list_entry_get_by_name(list_entry, tag) != NULL)
-		return true;
-	return false;
+        if (udev_device == NULL)
+                return false;
+        if (!udev_device->info_loaded)
+                udev_device_read_db(udev_device, NULL);
+        list_entry = udev_device_get_tags_list_entry(udev_device);
+        if (udev_list_entry_get_by_name(list_entry, tag) != NULL)
+                return true;
+        return false;
 }
 
-#define ENVP_SIZE			128
-#define MONITOR_BUF_SIZE		4096
+#define ENVP_SIZE                        128
+#define MONITOR_BUF_SIZE                4096
 static int update_envp_monitor_buf(struct udev_device *udev_device)
 {
-	struct udev_list_entry *list_entry;
-	char *s;
-	size_t l;
-	unsigned int i;
-
-	/* monitor buffer of property strings */
-	free(udev_device->monitor_buf);
-	udev_device->monitor_buf_len = 0;
-	udev_device->monitor_buf = malloc(MONITOR_BUF_SIZE);
-	if (udev_device->monitor_buf == NULL)
-		return -ENOMEM;
-
-	/* envp array, strings will point into monitor buffer */
-	if (udev_device->envp == NULL)
-		udev_device->envp = malloc(sizeof(char *) * ENVP_SIZE);
-	if (udev_device->envp == NULL)
-		return -ENOMEM;
-
-	i = 0;
-	s = udev_device->monitor_buf;
-	l = MONITOR_BUF_SIZE;
-	udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(udev_device)) {
-		const char *key;
-
-		key = udev_list_entry_get_name(list_entry);
-		/* skip private variables */
-		if (key[0] == '.')
-			continue;
-
-		/* add string to envp array */
-		udev_device->envp[i++] = s;
-		if (i+1 >= ENVP_SIZE)
-			return -EINVAL;
-
-		/* add property string to monitor buffer */
-		l = util_strpcpyl(&s, l, key, "=", udev_list_entry_get_value(list_entry), NULL);
-		if (l == 0)
-			return -EINVAL;
-		/* advance past the trailing '\0' that util_strpcpyl() guarantees */
-		s++;
-		l--;
-	}
-	udev_device->envp[i] = NULL;
-	udev_device->monitor_buf_len = s - udev_device->monitor_buf;
-	udev_device->envp_uptodate = true;
-	dbg(udev_device->udev, "filled envp/monitor buffer, %u properties, %zu bytes\n",
-	    i, udev_device->monitor_buf_len);
-	return 0;
+        struct udev_list_entry *list_entry;
+        char *s;
+        size_t l;
+        unsigned int i;
+
+        /* monitor buffer of property strings */
+        free(udev_device->monitor_buf);
+        udev_device->monitor_buf_len = 0;
+        udev_device->monitor_buf = malloc(MONITOR_BUF_SIZE);
+        if (udev_device->monitor_buf == NULL)
+                return -ENOMEM;
+
+        /* envp array, strings will point into monitor buffer */
+        if (udev_device->envp == NULL)
+                udev_device->envp = malloc(sizeof(char *) * ENVP_SIZE);
+        if (udev_device->envp == NULL)
+                return -ENOMEM;
+
+        i = 0;
+        s = udev_device->monitor_buf;
+        l = MONITOR_BUF_SIZE;
+        udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(udev_device)) {
+                const char *key;
+
+                key = udev_list_entry_get_name(list_entry);
+                /* skip private variables */
+                if (key[0] == '.')
+                        continue;
+
+                /* add string to envp array */
+                udev_device->envp[i++] = s;
+                if (i+1 >= ENVP_SIZE)
+                        return -EINVAL;
+
+                /* add property string to monitor buffer */
+                l = util_strpcpyl(&s, l, key, "=", udev_list_entry_get_value(list_entry), NULL);
+                if (l == 0)
+                        return -EINVAL;
+                /* advance past the trailing '\0' that util_strpcpyl() guarantees */
+                s++;
+                l--;
+        }
+        udev_device->envp[i] = NULL;
+        udev_device->monitor_buf_len = s - udev_device->monitor_buf;
+        udev_device->envp_uptodate = true;
+        dbg(udev_device->udev, "filled envp/monitor buffer, %u properties, %zu bytes\n",
+            i, udev_device->monitor_buf_len);
+        return 0;
 }
 
 char **udev_device_get_properties_envp(struct udev_device *udev_device)
 {
-	if (!udev_device->envp_uptodate)
-		if (update_envp_monitor_buf(udev_device) != 0)
-			return NULL;
-	return udev_device->envp;
+        if (!udev_device->envp_uptodate)
+                if (update_envp_monitor_buf(udev_device) != 0)
+                        return NULL;
+        return udev_device->envp;
 }
 
 ssize_t udev_device_get_properties_monitor_buf(struct udev_device *udev_device, const char **buf)
 {
-	if (!udev_device->envp_uptodate)
-		if (update_envp_monitor_buf(udev_device) != 0)
-			return -EINVAL;
-	*buf = udev_device->monitor_buf;
-	return udev_device->monitor_buf_len;
+        if (!udev_device->envp_uptodate)
+                if (update_envp_monitor_buf(udev_device) != 0)
+                        return -EINVAL;
+        *buf = udev_device->monitor_buf;
+        return udev_device->monitor_buf_len;
 }
 
 int udev_device_set_action(struct udev_device *udev_device, const char *action)
 {
-	free(udev_device->action);
-	udev_device->action = strdup(action);
-	if (udev_device->action == NULL)
-		return -ENOMEM;
-	udev_device_add_property(udev_device, "ACTION", udev_device->action);
-	return 0;
+        free(udev_device->action);
+        udev_device->action = strdup(action);
+        if (udev_device->action == NULL)
+                return -ENOMEM;
+        udev_device_add_property(udev_device, "ACTION", udev_device->action);
+        return 0;
 }
 
 int udev_device_get_devlink_priority(struct udev_device *udev_device)
 {
-	if (!udev_device->info_loaded)
-		udev_device_read_db(udev_device, NULL);
-	return udev_device->devlink_priority;
+        if (!udev_device->info_loaded)
+                udev_device_read_db(udev_device, NULL);
+        return udev_device->devlink_priority;
 }
 
 int udev_device_set_devlink_priority(struct udev_device *udev_device, int prio)
 {
-	 udev_device->devlink_priority = prio;
-	return 0;
+         udev_device->devlink_priority = prio;
+        return 0;
 }
 
 int udev_device_get_watch_handle(struct udev_device *udev_device)
 {
-	if (!udev_device->info_loaded)
-		udev_device_read_db(udev_device, NULL);
-	return udev_device->watch_handle;
+        if (!udev_device->info_loaded)
+                udev_device_read_db(udev_device, NULL);
+        return udev_device->watch_handle;
 }
 
 int udev_device_set_watch_handle(struct udev_device *udev_device, int handle)
 {
-	udev_device->watch_handle = handle;
-	return 0;
+        udev_device->watch_handle = handle;
+        return 0;
 }
 
 bool udev_device_get_db_persist(struct udev_device *udev_device)
 {
-	return udev_device->db_persist;
+        return udev_device->db_persist;
 }
 
 void udev_device_set_db_persist(struct udev_device *udev_device)
 {
-	udev_device->db_persist = true;
+        udev_device->db_persist = true;
 }