common: Prepare for parsing mail sub-addresses.
* common/mbox-util.c (mailbox_from_userid): Add arg subaddress and implement. Change all callers to pass false for it. * common/t-mbox-util.c (run_mbox_no_sub_test): New. (run_filter): Add arg no_sub. (main): Call new test and add option --no-sub.
Some stats: In the about 5300000 keys on the SKS servers we found 3055
unique mailboxes with a '+' in it. After removing leading and
trailing '+' as well as multiple '+' (e.g. "c++" or "foo+bar+baz")
2697 were left which seem to be valid sub-addresses.
To filter mailboxes out from a line delimited list with
user-ids (e.g. an SQL output), the command
t-mbox-util --verbose --filter
can be used; to output w/o sub-addresses add --no-sub.
- GnuPG-bug-id: T4200
- Signed-off-by: Werner Koch <email@example.com>