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| author | Karel Zak | 2011-12-22 11:02:58 +0100 |
|---|---|---|
| committer | Karel Zak | 2011-12-22 12:19:38 +0100 |
| commit | 09ec0c0a970d3542d818bb57e29bb76c489cc37c (patch) | |
| tree | 094a9d8785bbbfbe6090909ec130cfc0e62ac581 /sys-utils/losetup.c | |
| parent | losetup: rewrite loop setup (diff) | |
| download | kernel-qcow2-util-linux-09ec0c0a970d3542d818bb57e29bb76c489cc37c.tar.gz kernel-qcow2-util-linux-09ec0c0a970d3542d818bb57e29bb76c489cc37c.tar.xz kernel-qcow2-util-linux-09ec0c0a970d3542d818bb57e29bb76c489cc37c.zip | |
losetup: print info about one device
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'sys-utils/losetup.c')
| -rw-r--r-- | sys-utils/losetup.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sys-utils/losetup.c b/sys-utils/losetup.c index ab45dff1d..af4d1b098 100644 --- a/sys-utils/losetup.c +++ b/sys-utils/losetup.c @@ -32,6 +32,7 @@ enum { A_DELETE, /* delete given device(s) */ A_DELETE_ALL, /* delete all devices */ A_SHOW, /* list devices */ + A_SHOW_ONE, /* print info about one device */ A_FIND_FREE, /* find first unused */ A_SET_CAPACITY, /* set device capacity */ }; @@ -329,6 +330,13 @@ int main(int argc, char **argv) act = A_CREATE; file = argv[optind++]; } + if (!act && optind + 1 == argc) { + /* + * losetup <device> + */ + act = A_SHOW_ONE; + loopcxt_set_device(&lc, argv[optind++]); + } if (!act) { /* * losetup <loopdev> <backing_file> @@ -421,6 +429,11 @@ int main(int argc, char **argv) case A_SHOW: res = show_all_loops(&lc, file, offset, flags); break; + case A_SHOW_ONE: + res = printf_loopdev(&lc); + if (res) + warn(_("%s"), loopcxt_get_device(&lc)); + break; case A_SET_CAPACITY: res = set_capacity(&lc); break; |