/* SPDX-License-Identifier: GPL-2.0+ */ /* * */ #include "path-util.h" #include "string-util.h" #include "udevadm-util.h" struct udev_device *find_device(struct udev *udev, const char *id, const char *prefix) { assert(udev); assert(id); if (prefix && !startswith(id, prefix)) id = strjoina(prefix, id); if (path_startswith(id, "/dev/")) { struct stat statbuf; char type; if (stat(id, &statbuf) < 0) return NULL; if (S_ISBLK(statbuf.st_mode)) type = 'b'; else if (S_ISCHR(statbuf.st_mode)) type = 'c'; else return NULL; return udev_device_new_from_devnum(udev, type, statbuf.st_rdev); } else if (path_startswith(id, "/sys/")) return udev_device_new_from_syspath(udev, id); else return NULL; }