* gpg.sgml: Document "addcardkey" and "keytocard".

* apdu.c (open_pcsc_reader): Do not print empty reader string.

* keygen.c (ask_algo): Allow creation of AUTH keys.

* keyid.c (usagestr_from_pk): New.

* app-openpgp.c (app_openpgp_storekey): Call flush_cache.

* keyedit.c (keyedit_menu): New command "keytocard"
(keyedit_menu): Bad hack for the not_with_sk element.
(show_key_with_all_names): Print the usage.
(find_pk_from_sknode): New.

* card-util.c (card_store_subkey): New.
(copy_mpi): New.
* cardglue.c (agent_openpgp_storekey): New.

1 files changed, 29 insertions, 0 deletions

diff --git a/g10/keyid.c b/g10/keyid.c
index 9d987179d..9c5138605 100644
--- a/g10/keyid.c
+++ b/g10/keyid.c
@@ -535,6 +535,35 @@ revokestr_from_pk( PKT_public_key *pk )
     return mk_datestr (buffer, atime);
 }
 
+
+const char *
+usagestr_from_pk( PKT_public_key *pk )
+{
+  static char buffer[10];
+  int i = 0;
+  unsigned int use = pk->pubkey_usage;
+    
+  if ( use & PUBKEY_USAGE_SIG )
+    {
+      if (pk->is_primary)
+        buffer[i++] = 'C';
+      buffer[i++] = 'S';
+    }
+
+  if ( use & PUBKEY_USAGE_ENC )
+    buffer[i++] = 'E';
+
+  if ( (use & PUBKEY_USAGE_AUTH) )
+    buffer[i++] = 'A';
+
+  while (i < 4)
+    buffer[i++] = ' ';
+
+  buffer[i] = 0;
+  return buffer;
+}
+
+
 const char *
 colon_strtime (u32 t)
 {