btrfs-progs: don't write to optarg in btrfs_qgroup_parse_sort_string
authorDavid Sterba <dsterba@suse.com>
Thu, 29 Sep 2016 15:25:46 +0000 (17:25 +0200)
committerDavid Sterba <dsterba@suse.com>
Mon, 3 Oct 2016 13:07:23 +0000 (15:07 +0200)
commit9fcdf8f8945bfddb7e1155bc9da68aed33e4737c
tree1ae964b32ddc3f770b5344878ecf9af9c608d814
parent2761c37d25e61e0bff04f0dac076ba9d1edb87be
btrfs-progs: don't write to optarg in btrfs_qgroup_parse_sort_string

Dup the string that gets passed to strtok so we don't destroy callers
buffer.

Signed-off-by: David Sterba <dsterba@suse.com>
qgroup.c