scd: Use Gcrypt usage constants for the do_with_keygrip capabilities.

* scd/command.c (cmd_keyinfo): Use Gcrypt constants for CAP.
* scd/app-openpgp.c (do_with_keygrip): Adjust for them.
* scd/app-piv.c (do_with_keygrip): Ditto.
--

That makes it easier to read.  An open question is whether we should
allow several capabilities and whether they are the ORed or ANDed.

Signed-off-by: Werner Koch <[email protected]>

1 files changed, 3 insertions, 3 deletions

diff --git a/scd/app-piv.c b/scd/app-piv.c
index cd53c175f..8a3ba1e1b 100644
--- a/scd/app-piv.c
+++ b/scd/app-piv.c
@@ -3513,17 +3513,17 @@ do_with_keygrip (app_t app, ctrl_t ctrl, int action,
         }
       else if (!want_keygripstr || !strcmp (keygripstr, want_keygripstr))
         {
-          if (capability == 1)
+          if (capability == GCRY_PK_USAGE_SIGN)
             {
               if (strcmp (data_objects[i].keyref, "9C"))
                 continue;
             }
-          if (capability == 2)
+          if (capability == GCRY_PK_USAGE_ENCR)
             {
               if (strcmp (data_objects[i].keyref, "9D"))
                 continue;
             }
-          if (capability == 3)
+          if (capability == GCRY_PK_USAGE_AUTH)
             {
               if (strcmp (data_objects[i].keyref, "9A"))
                 continue;