+ return EXIT_FAILURE;
+ } else
+ if (S_ISDIR(st.st_mode)) {
+ dev_t st_dev = st.st_dev;
+ ino_t st_ino = st.st_ino;
+ char *p = xasprintf("%s/..", arg);
+
+ if (stat(p, &st) == 0) {
+ int ret = (st_dev != st.st_dev) ||
+ (st_dev == st.st_dev && st_ino == st.st_ino);
+ if (opt & OPT_d)
+ printf("%u:%u\n", major(st_dev), minor(st_dev));
+ else if (!(opt & OPT_q))
+ printf("%s is %sa mountpoint\n", arg, ret?"":"not ");
+ return !ret;
+ }
+ } else {
+ if (!(opt & OPT_q))
+ bb_error_msg("%s: not a directory", arg);
+ return EXIT_FAILURE;