agent: New option --no-user-trustlist and --sys-trustlist-name.
* agent/gpg-agent.c (oNoUserTrustlist,oSysTrustlistName): New. (opts): Add new option names. (parse_rereadable_options): Parse options. (finalize_rereadable_options): Reset allow-mark-trusted for the new option. * agent/agent.h (opt): Add fields no_user_trustlist and sys_trustlist_name. * agent/trustlist.c (make_sys_trustlist_name): New. (read_one_trustfile): Use here. (read_trustfiles): Use here. Implement --no-user-trustlist.
With the global options we can now avoid that a user changes the
Root-CA trust by editing the trustlist.txt. However, to implement
this we need a new option so that we don't need to rely on some magic
like --no-allow-mark-trusted has been put into a force section.
The second option makes system administration easier as it allows to
keep the trustlist in a non-distributed file.
- GnuPG-bug-id: T5990