change some pledge_fail() error/code

- for PLEDGE_FATTR: the code is more accurate to be PLEDGE_FATTR, has
  p->p_pledgenote could have multiple bits inside, and it is the lake of
  PLEDGE_FATTR that make the check fail.

- for PLEDGE_RECVFD and PLEDGE_SENDFD, change the error to be EINVAL: we fail,
  not because of lake of PLEDGE_RECVFD / PLEDGE_SENDFD permission, but because
  the value passed is invalid in pledged program (for example trying to send a
  VDIR).

"go ahead" deraadt@

0 files changed, 0 insertions, 0 deletions