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-rw-r--r--util-linux/losetup.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/util-linux/losetup.c b/util-linux/losetup.c
index af0b03a53..6b9a810f2 100644
--- a/util-linux/losetup.c
+++ b/util-linux/losetup.c
@@ -22,7 +22,8 @@ int losetup_main(int argc, char **argv)
argc -= optind;
argv += optind;
- if (opt == 0x3) bb_show_usage(); // -d and -o (illegal)
+ if (opt == 0x3) // -d + -o (illegal)
+ bb_show_usage();
if (opt == 0x1) { // -d
/* detach takes exactly one argument */
@@ -46,7 +47,18 @@ int losetup_main(int argc, char **argv)
if (!s) bb_perror_nomsg_and_die();
printf("%s: %s\n", argv[0], s);
if (ENABLE_FEATURE_CLEAN_UP) free(s);
- } else
- bb_show_usage();
+ } else {
+ char dev[11] = "/dev/loop0";
+ char c;
+ for (c = '0'; c <= '9'; ++c) {
+ char *s;
+ dev[9] = c;
+ s = query_loop(dev);
+ if (s) {
+ printf("%s: %s\n", dev, s);
+ if (ENABLE_FEATURE_CLEAN_UP) free(s);
+ }
+ }
+ }
return EXIT_SUCCESS;
}