X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=udev%2Fudevadm-info.c;h=4510f4aa907dc56a22544564ec1e10045046bf61;hb=2514465f6a4ab61617482f068e475b945438c1f1;hp=b3b31ebafe459abc971527b05a2f82c51448989a;hpb=88163971b93260474bf2dd3195dc4e72098584ba;p=elogind.git

diff --git a/udev/udevadm-info.c b/udev/udevadm-info.c
index b3b31ebaf..4510f4aa9 100644
--- a/udev/udevadm-info.c
+++ b/udev/udevadm-info.c
@@ -195,6 +195,66 @@ static int export_devices(struct udev *udev)
 	return 0;
 }
 
+static int convert_db(struct udev *udev)
+{
+	struct udev_enumerate *udev_enumerate;
+	struct udev_list_entry *list_entry;
+
+	udev_enumerate = udev_enumerate_new(udev);
+	if (udev_enumerate == NULL)
+		return -1;
+	udev_enumerate_scan_devices(udev_enumerate);
+	udev_list_entry_foreach(list_entry, udev_enumerate_get_list_entry(udev_enumerate)) {
+		struct udev_device *device;
+
+		device = udev_device_new_from_syspath(udev, udev_list_entry_get_name(list_entry));
+		if (device != NULL) {
+			const char *id;
+			struct stat stats;
+			char to[UTIL_PATH_SIZE];
+			char devpath[UTIL_PATH_SIZE];
+			char from[UTIL_PATH_SIZE];
+
+			id = udev_device_get_id_filename(device);
+			if (id == NULL) {
+				udev_device_unref(device);
+				continue;
+			}
+			util_strscpyl(to, sizeof(to), udev_get_dev_path(udev), "/.udev/db/", id, NULL);
+
+			/* find old database with $subsys:$sysname */
+			util_strscpyl(from, sizeof(from), udev_get_dev_path(udev),
+				     "/.udev/db/", udev_device_get_subsystem(device), ":",
+				     udev_device_get_sysname(device), NULL);
+			if (lstat(from, &stats) == 0) {
+				if (lstat(to, &stats) == 0)
+					unlink(from);
+				else
+					rename(from, to);
+			}
+
+			/* find old database with the encoded devpath */
+			util_path_encode(udev_device_get_devpath(device), devpath, sizeof(devpath));
+			util_strscpyl(from, sizeof(from), udev_get_dev_path(udev),
+				      "/.udev/db/", devpath, NULL);
+			if (lstat(from, &stats) == 0) {
+				if (lstat(to, &stats) == 0)
+					unlink(from);
+				else
+					rename(from, to);
+			}
+
+			/* read the old database, and write out a new one */
+			udev_device_read_db(device);
+			udev_device_update_db(device);
+
+			udev_device_unref(device);
+		}
+	}
+	udev_enumerate_unref(udev_enumerate);
+	return 0;
+}
+
 int udevadm_info(struct udev *udev, int argc, char *argv[])
 {
 	struct udev_device *device = NULL;
@@ -212,6 +272,7 @@ int udevadm_info(struct udev *udev, int argc, char *argv[])
 		{ "query", required_argument, NULL, 'q' },
 		{ "attribute-walk", no_argument, NULL, 'a' },
 		{ "export-db", no_argument, NULL, 'e' },
+		{ "convert-db", no_argument, NULL, 'C' },
 		{ "root", no_argument, NULL, 'r' },
 		{ "device-id-of-file", required_argument, NULL, 'd' },
 		{ "export", no_argument, NULL, 'x' },
@@ -336,6 +397,9 @@ int udevadm_info(struct udev *udev, int argc, char *argv[])
 		case 'e':
 			export_devices(udev);
 			goto exit;
+		case 'C':
+			convert_db(udev);
+			goto exit;
 		case 'x':
 			export = true;
 			break;
@@ -359,7 +423,10 @@ int udevadm_info(struct udev *udev, int argc, char *argv[])
 			       "  --attribute-walk           print all key matches while walking along the chain\n"
 			       "                             of parent devices\n"
 			       "  --device-id-of-file=<file> print major:minor of device containing this file\n"
+			       "  --export                   export key/value pairs\n"
+			       "  --export-prefix            export the key name with a prefix\n"
 			       "  --export-db                export the content of the udev database\n"
+			       "  --convert-db               convert older version of database without a reboot\n"
 			       "  --help\n\n");
 			goto exit;
 		default: