gpg: Make sure to mark a duplicate registered keybox as primary.
* kbx/keybox-init.c (keybox_register_file): Change interface to return the token even if the file has already been registered. * g10/keydb.c (primary_keyring): Rename to primary_keydb. (maybe_create_keyring_or_box): Change return type to gpg_error_t. (keydb_add_resource): Ditto. s/rc/err/. (keydb_add_resource): Mark an already registered as primary. * sm/keydb.c (maybe_create_keybox): Change return type to gpg_error_t. (keydb_add_resource): Ditto. s/rc/err/. (keydb_add_resource): Adjust for changed keybox_register_file.
This change aligns the registering of keyboxes with those of
keyrings. This fixes a potential bug:
gpg --keyring foo.kbx --keyring bar.gpg --keyring foo.kbx
would have marked bar.gpg as primary resource and thus inserting new
keys there. The correct and now fixed behavior is to insert to
foo.kbx.
- Signed-off-by: Werner Koch <wk@gnupg.org>