Merge branch 'docs/udev.xml' of git://github.com/mfwitten/udev

[elogind.git] / udev / udevadm-info.c

diff --git a/udev/udevadm-info.c b/udev/udevadm-info.c
index 33d113c5b1cb9b7271634d3b0e918de8a3ef99e5..87c1c32314b2d0784c9d9cf2e0745ad72dc166e4 100644 (file)
--- a/udev/udevadm-info.c
+++ b/udev/udevadm-info.c
@@ -200,6 +200,81 @@ static int export_devices(struct udev *udev)
        return 0;
 }
 
+static void cleanup_dir(DIR *dir, mode_t mask, int depth)
+{
+       struct dirent *dent;
+
+       if (depth <= 0)
+               return;
+
+       for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {
+               struct stat stats;
+
+               if (dent->d_name[0] == '.')
+                       continue;
+               if (fstatat(dirfd(dir), dent->d_name, &stats, AT_SYMLINK_NOFOLLOW) != 0)
+                       continue;
+               if ((stats.st_mode & mask) != 0)
+                       continue;
+               if (S_ISDIR(stats.st_mode)) {
+                       DIR *dir2;
+
+                       dir2 = fdopendir(openat(dirfd(dir), dent->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC));
+                       if (dir2 != NULL) {
+                               cleanup_dir(dir2, mask, depth-1);
+                               closedir(dir2);
+                       }
+                       unlinkat(dirfd(dir), dent->d_name, AT_REMOVEDIR);
+               } else {
+                       unlinkat(dirfd(dir), dent->d_name, 0);
+               }
+       }
+}
+
+static void cleanup_db(struct udev *udev)
+{
+       char filename[UTIL_PATH_SIZE];
+       DIR *dir;
+
+       util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/queue.bin", NULL);
+       unlink(filename);
+
+       util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/data", NULL);
+       dir = opendir(filename);
+       if (dir != NULL) {
+               cleanup_dir(dir, S_ISVTX, 1);
+               closedir(dir);
+       }
+
+       util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/links", NULL);
+       dir = opendir(filename);
+       if (dir != NULL) {
+               cleanup_dir(dir, 0, 2);
+               closedir(dir);
+       }
+
+       util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/tags", NULL);
+       dir = opendir(filename);
+       if (dir != NULL) {
+               cleanup_dir(dir, 0, 2);
+               closedir(dir);
+       }
+
+       util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/watch", NULL);
+       dir = opendir(filename);
+       if (dir != NULL) {
+               cleanup_dir(dir, 0, 1);
+               closedir(dir);
+       }
+
+       util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/firmware-missing", NULL);
+       dir = opendir(filename);
+       if (dir != NULL) {
+               cleanup_dir(dir, 0, 1);
+               closedir(dir);
+       }
+}
+
 int udevadm_info(struct udev *udev, int argc, char *argv[])
 {
        struct udev_device *device = NULL;
@@ -216,8 +291,10 @@ int udevadm_info(struct udev *udev, int argc, char *argv[])
                { "path", required_argument, NULL, 'p' },
                { "query", required_argument, NULL, 'q' },
                { "attribute-walk", no_argument, NULL, 'a' },
+               { "cleanup-db", no_argument, NULL, 'c' },
                { "export-db", no_argument, NULL, 'e' },
                { "root", no_argument, NULL, 'r' },
+               { "run", no_argument, NULL, 'R' },
                { "device-id-of-file", required_argument, NULL, 'd' },
                { "export", no_argument, NULL, 'x' },
                { "export-prefix", required_argument, NULL, 'P' },
@@ -247,7 +324,7 @@ int udevadm_info(struct udev *udev, int argc, char *argv[])
                int option;
                struct stat statbuf;
 
-               option = getopt_long(argc, argv, "aed:n:p:q:rxP:Vh", options, NULL);
+               option = getopt_long(argc, argv, "aced:n:p:q:rxP:RVh", options, NULL);
                if (option == -1)
                        break;
 
@@ -331,6 +408,9 @@ int udevadm_info(struct udev *udev, int argc, char *argv[])
                                action = ACTION_ROOT;
                        root = true;
                        break;
+               case 'R':
+                       printf("%s\n", udev_get_run_path(udev));
+                       goto exit;
                case 'd':
                        action = ACTION_DEVICE_ID_FILE;
                        util_strscpy(name, sizeof(name), optarg);
@@ -341,6 +421,9 @@ int udevadm_info(struct udev *udev, int argc, char *argv[])
                case 'e':
                        export_devices(udev);
                        goto exit;
+               case 'c':
+                       cleanup_db(udev);
+                       goto exit;
                case 'x':
                        export = true;
                        break;
@@ -367,6 +450,7 @@ int udevadm_info(struct udev *udev, int argc, char *argv[])
                               "  --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"
+                              "  --cleanup-db               cleanup the udev database\n"
                               "  --help\n\n");
                        goto exit;
                default: