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| author | Nikolay Borisov <nborisov@suse.com> | 2018-05-14 14:13:28 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-06-07 16:37:39 +0200 |
| commit | 572637b6f95cd9dd7be658ea2d18718d04c4ac17 (patch) | |
| tree | e214b91a2d04252844bae568c0279b9cefc611b9 | |
| parent | 04be0e4b19627e9e4d7295d89c58ca08f6a04f9f (diff) | |
btrfs-progs: corrupt-block: Factor out key parsing function
Currently passing a key with -K handling is open coded. I intend on
changing the interface a bit to make the program more usable. To aid
in this factor out common code which parses a triplet of the
"u64,u8,u64" format, corresponding to a btrfs key. No functional
changes.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
[ print optarg too ]
Signed-off-by: David Sterba <dsterba@suse.com>
| -rw-r--r-- | btrfs-corrupt-block.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/btrfs-corrupt-block.c b/btrfs-corrupt-block.c index b2ec5dea..f115ca53 100644 --- a/btrfs-corrupt-block.c +++ b/btrfs-corrupt-block.c @@ -1081,6 +1081,16 @@ out: } +static void parse_key(u64 *objectid, u8 *type, u64 *offset) +{ + + int ret = sscanf(optarg, "%llu,%hhu,%llu", objectid, type, offset); + if (ret != 3) { + fprintf(stderr, "error parsing key '%s': %d\n", optarg, errno); + print_usage(1); + } +} + static struct btrfs_root *open_root(struct btrfs_fs_info *fs_info, u64 root_objectid) { |