vfs_fruit: never return AFP_Resource stream for directories
The macOS client creates ._ AppleDouble files for directories that do contain
an (empty) resource fork AppleDouble entry. So when going from a Samba server
config without streams module (or when migrating data from another server
without streams support), to a Samba config with a streams module and vfs_fruit,
fruit_streaminfo() will wrongly return the AFP_Resource from the AppleDouble
file as stream to the client.
To address this, just never return an AFP_Resource stream for directories when
listing streams in fruit_streaminfo(). ad_convert(), when configured with
fruit:delete_empty_adfiles = true
fruit:wipe_intentionally_left_blank_rfork = true
will happily discard the AFP_Resource from the AppleDouble file.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15378
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit
06f0c070a0b18313f48362aa326e3e7e6a096492)