D27520: add readdirplus2 support for samba>=4.12

[Harald Sitter]

sitter created this revision.
sitter added reviewers: ngraham, asn.
Herald added projects: Dolphin, Frameworks.
Herald added subscribers: kfm-devel, kde-frameworks-devel.
sitter requested review of this revision.

REVISION SUMMARY
  unlike the dirent itering we do not need a separate stat call with this
  new api by instead itering on what are effectively stat-like objects.
  
  this simply runs before the regular itering which we still use to list
  shares and workgroups. browse_stat_path has been split into stat and
  udsentry-construction-from-stat so it can be used across both code
  paths.
  
  fun fact on the side: if there actually was a stat() api that returned
  libsmb_file_info, we could use that as well and forget about the stats
  structs in general :S
  
  BUG: 402988
  FIXED-IN: 20.04.0

TEST PLAN
  - build samba 4.12 rc
  - list server
  - list share
  - list dir in share
  
  - on 4.7
  - all of the above

REPOSITORY
  R320 KIO Extras

BRANCH
  readdirplus2

REVISION DETAIL
  https://phabricator.kde.org/D27520

AFFECTED FILES
  smb/CMakeLists.txt
  smb/config-smb.h.cmake
  smb/kio_smb.h
  smb/kio_smb_browse.cpp

To: sitter, ngraham, asn
Cc: kde-frameworks-devel, kfm-devel, pberestov, iasensio, fprice, LeGast00n, cblack, MrPepe, fbampaloukas, alexde, GB_2, Codezela, feverfew, meven, michaelh, spoorun, navarromorales, firef, ngraham, andrebarros, bruns, emmanuelp, mikesomov
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