Change-Id: I552790d99c070f045c9300d71c1c69ed5de3ce7b

Description:add unsupport api print
Team: OTHERS
Feature or Bugfix:Feature
Binary Source:No
PrivateCode(Yes/No):No

Change-Id: If54639f876c6c6d546f36f65a83e3d4ae94a58f0
Reviewed-on: http://mgit-tm.rnd.huawei.com/10522043Tested-by: Npublic jenkins <public_jenkins@notesmail.huawei.com>
Reviewed-by: Ncaoruihong 00546070 <crh.cao@huawei.com>
Reviewed-by: Nshenwei 00579521 <denny.shenwei@huawei.com>

fdopendir is specified to fail with EBADF if the file descriptor
passed is not open for reading. while O_PATH is an extension and
arguably exempt from this requirement, it's used, albeit incompletely,
to implement O_SEARCH, and fdopendir should fail when passed an
O_SEARCH file descriptor.

the new check is performed after fstat so that we don't have to
consider the possibility that the fd is invalid.

an alternate solution would be attempting to pre-fill the buffer using
getdents, which would fail with EBADF for us, but that seems more
complex and error-prone and involves either code duplication or
refactoring, so the simple fix with an additional inexpensive syscall
is what I've made for now.

this resolves an issue reported by Vasiliy Kulikov