Add functions for verifying database signature

Add a pmpgpsig_t struct to the database entry struct and functions for
the lazy loading of database signatures.  Add a function for checking
database signatures, reusing (and generalizing) the code currently used
for checking package signatures.

TODO: The code for reading in signature files from the filesystem is
duplicated for local packages and database and needs refactoring.

Signed-off-by: Allan McRae <allan@archlinux.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/libalpm/alpm.h b/lib/libalpm/alpm.h
index 276d49cb..b08191d0 100644
--- a/lib/libalpm/alpm.h
+++ b/lib/libalpm/alpm.h
@@ -250,6 +250,7 @@ alpm_list_t *alpm_pkg_unused_deltas(pmpkg_t *pkg);
  */
 
 int alpm_pkg_check_pgp_signature(pmpkg_t *pkg);
+int alpm_db_check_pgp_signature(pmdb_t *db);
 
 /* GPG signature verification option */
 typedef enum _pgp_verify_t {