diff options
Diffstat (limited to 'util-linux/losetup.c')
| -rw-r--r-- | util-linux/losetup.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/util-linux/losetup.c b/util-linux/losetup.c index 9b7c49f..21108d0 100644 --- a/util-linux/losetup.c +++ b/util-linux/losetup.c @@ -8,11 +8,12 @@ */ //usage:#define losetup_trivial_usage -//usage: "[-o OFS] LOOPDEV FILE - associate loop devices\n" +//usage: "[-r] [-o OFS] LOOPDEV FILE - associate loop devices\n" //usage: " losetup -d LOOPDEV - disassociate\n" //usage: " losetup [-f] - show" //usage:#define losetup_full_usage "\n\n" //usage: " -o OFS Start OFS bytes into FILE" +//usage: "\n -r Read-only" //usage: "\n -f Show first free loop device" //usage: //usage:#define losetup_notes_usage @@ -37,11 +38,12 @@ int losetup_main(int argc UNUSED_PARAM, char **argv) OPT_d = (1 << 0), OPT_o = (1 << 1), OPT_f = (1 << 2), + OPT_r = (1 << 3), /* must be last */ }; - /* max 2 args, all opts are mutually exclusive */ + /* max 2 args, -d,-o,-f opts are mutually exclusive */ opt_complementary = "?2:d--of:o--df:f--do"; - opt = getopt32(argv, "do:f", &opt_o); + opt = getopt32(argv, "do:fr", &opt_o); argv += optind; if (opt == OPT_o) @@ -63,12 +65,12 @@ int losetup_main(int argc UNUSED_PARAM, char **argv) bb_show_usage(); if (argv[1]) { - /* [-o OFS] BLOCKDEV FILE */ - if (set_loop(&argv[0], argv[1], offset) < 0) + /* [-r] [-o OFS] BLOCKDEV FILE */ + if (set_loop(&argv[0], argv[1], offset, (opt / OPT_r)) < 0) bb_simple_perror_msg_and_die(argv[0]); return EXIT_SUCCESS; } - /* [-o OFS] BLOCKDEV */ + /* [-r] [-o OFS] BLOCKDEV */ s = query_loop(argv[0]); if (!s) bb_simple_perror_msg_and_die(argv[0]); @@ -78,7 +80,7 @@ int losetup_main(int argc UNUSED_PARAM, char **argv) return EXIT_SUCCESS; } - /* [-o OFS|-f] with no params */ + /* [-r] [-o OFS|-f] with no params */ n = 0; while (1) { char *s; |