scd: Return USAGE information for KEYINFO command.

* scd/command.c (hlp_keyinfo): Update.
(send_keyinfo): Add a USAGE argument.
* scd/scdaemon.h (send_keyinfo): Add a USAGE argument.
* scd/app-nks.c (set_usage_string): New.
(do_learn_status_core, do_readkey): Use set_usage_string.
(do_with_keygrip): Add USAGE to call send_keyinfo,
using set_usage_string.
* scd/app-openpgp.c (get_usage_string): New.
(send_keypair_info): Use get_usage_string.
(send_keyinfo_if_available): Add USAGE to call send_keyinfo,
using get_usage_string.
* scd/app-p15.c (set_usage_string): New.
(send_keypairinfo): Use set_usage_string.
(do_with_keygrip): Add USAGE to call send_keyinfo,
using set_usage_string.
* scd/app-piv.c (do_with_keygrip): Add USAGE to call send_keyinfo.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/scd/scdaemon.h b/scd/scdaemon.h
index b2a1d2fcc..68136b886 100644
--- a/scd/scdaemon.h
+++ b/scd/scdaemon.h
@@ -140,7 +140,8 @@ gpg_error_t send_status_direct (ctrl_t ctrl,
 gpg_error_t send_status_printf (ctrl_t ctrl, const char *keyword,
                                 const char *format, ...) GPGRT_ATTR_PRINTF(3,4);
 void send_keyinfo (ctrl_t ctrl, int data, const char *keygrip_str,
-                   const char *serialno, const char *idstr);
+                   const char *serialno, const char *idstr,
+                   const char *usage);
 
 void pincache_put (ctrl_t ctrl, int slot, const char *appname,
                    const char *pinref, const char *pin, unsigned int pinlen);