X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=udev%2Flib%2Flibudev-device.c;h=4a9c815064cad3478bbba11a5acba9e54ecf4bc4;hb=03198b93038d3ea87d1699a1e982c235ff824275;hp=cc44c78ad79c3b91426915a4c40ec2accb97e38c;hpb=38f27948cdafd8a4b90a6b4f1f54b89891983506;p=elogind.git

diff --git a/udev/lib/libudev-device.c b/udev/lib/libudev-device.c
index cc44c78ad..4a9c81506 100644
--- a/udev/lib/libudev-device.c
+++ b/udev/lib/libudev-device.c
@@ -65,6 +65,32 @@ static size_t syspath_to_db_path(struct udev_device *udev_device, char *filename
 	return util_path_encode(&filename[start], len - start);
 }
 
+static int device_read_uevent_file(struct udev_device *udev_device)
+{
+	char filename[UTIL_PATH_SIZE];
+	FILE *f;
+	char line[UTIL_LINE_SIZE];
+
+	util_strlcpy(filename, udev_device->syspath, sizeof(filename));
+	util_strlcat(filename, "/uevent", sizeof(filename));
+	f = fopen(filename, "r");
+	if (f == NULL)
+		return -1;
+
+	while (fgets(line, sizeof(line), f)) {
+		char *pos;
+
+		pos = strchr(line, '\n');
+		if (pos == NULL)
+			continue;
+		pos[0] = '\0';
+		device_add_property_from_string(udev_device, line);
+	}
+
+	fclose(f);
+	return 0;
+}
+
 static int device_read_db(struct udev_device *udev_device)
 {
 	struct stat stats;
@@ -211,11 +237,32 @@ struct udev_device *udev_device_new_from_syspath(struct udev *udev, const char *
 	device_set_syspath(udev_device, path);
 	info(udev, "device %p has devpath '%s'\n", udev_device, udev_device_get_devpath(udev_device));
 
+	device_read_uevent_file(udev_device);
 	if (device_read_db(udev_device) >= 0)
 		info(udev, "device %p filled with udev database data\n", udev_device);
 	return udev_device;
 }
 
+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;
+
+	if (type == 'b')
+		type_str = "block";
+	else if (type == 'c')
+		type_str = "char";
+	else
+		return NULL;
+
+	snprintf(path, sizeof(path), "%s/dev/%s/%u:%u", udev_get_sys_path(udev),
+		 type_str, major(devnum), minor(devnum));
+	if (util_resolve_sys_link(udev, path, sizeof(path)) < 0)
+		return NULL;
+
+	return udev_device_new_from_syspath(udev, path);
+}
+
 static struct udev_device *device_new_from_parent(struct udev_device *udev_device)
 {
 	struct udev_device *udev_device_parent = NULL;
@@ -361,7 +408,7 @@ const char *udev_device_get_sysname(struct udev_device *udev_device)
 }
 
 /**
- * udev_device_get_devname:
+ * udev_device_get_devnode:
  * @udev_device: udev device
  *
  * Retrieve the device node file name belonging to the udev device.
@@ -369,7 +416,7 @@ const char *udev_device_get_sysname(struct udev_device *udev_device)
  *
  * Returns: the device node file name of the udev device, or #NULL if no device node exists
  **/
-const char *udev_device_get_devname(struct udev_device *udev_device)
+const char *udev_device_get_devnode(struct udev_device *udev_device)
 {
 	if (udev_device == NULL)
 		return NULL;