gpg: If possible TRUST values now depend on signer's UID or --sender.

* g10/mainproc.c (check_sig_and_print): Add failsafe check for PK.
Pass KEYBLOCK down do check_signatures_trust.  Protect existsing error
ocde in case the signature expired.
* g10/pkclist.c (is_in_sender_list): New.
(check_signatures_trust): Add args keyblock and pk.  Add new uid based
checking code.
* g10/test-stubs.c, g10/gpgv.c: Adjust stubs.
--

GnuPG-bug-id: 4735
Signed-off-by: Werner Koch <wk@gnupg.org>

1 files changed, 5 insertions, 2 deletions

diff --git a/g10/gpgv.c b/g10/gpgv.c
index 65f5f89c7..9f8dca82f 100644
--- a/g10/gpgv.c
+++ b/g10/gpgv.c
@@ -299,10 +299,13 @@ g10_exit( int rc )
  * We have to override the trustcheck from pkclist.c because
  * this utility assumes that all keys in the keyring are trustworthy
  */
-int
-check_signatures_trust (ctrl_t ctrl, PKT_signature *sig)
+gpg_error_t
+check_signatures_trust (ctrl_t ctrl, kbnode_t kblock,
+                        PKT_public_key *pk, PKT_signature *sig)
 {
   (void)ctrl;
+  (void)kblock;
+  (void)pk;
   (void)sig;
   return 0;
 }