scd: Add reder information to --card-status.

* g10/call-agent.h, g10/call-agent.c (agent_release_card_info)
g10/card-util.c (card_status): Add READER.
* scd/apdu.c (close_ccid_reader, open_ccid_reader): Handle RDRNAME.
(apdu_get_reader_name): New.
* scd/ccid-driver.c (ccid_open_reader): Add argument to RDRNAME_P.
* scd/command.c (cmd_learn): Return READER information.

scd/apdu.c

@@ -2466,6 +2466,7 @@ static int
 close_ccid_reader (int slot)
 {
   ccid_close_reader (reader_table[slot].ccid.handle);
+  reader_table[slot].rdrname = NULL;
   reader_table[slot].used = 0;
   return 0;
 }
@@ -2619,7 +2620,8 @@ open_ccid_reader (const char *portstr)
     return -1;
   slotp = reader_table + slot;
 
-  err = ccid_open_reader (&slotp->ccid.handle, portstr);
+  err = ccid_open_reader (&slotp->ccid.handle, portstr,
+                          (const char **)&slotp->rdrname);
   if (err)
     {
       slotp->used = 0;
@@ -4326,3 +4328,10 @@ apdu_send_direct (int slot, size_t extended_length,
 
   return 0;
 }
+
+
+const char *
+apdu_get_reader_name (int slot)
+{
+  return reader_table[slot].rdrname;
+}

scd/apdu.h

@@ -134,6 +134,6 @@ int apdu_send_direct (int slot, size_t extended_length,
                       const unsigned char *apdudata, size_t apdudatalen,
                       int handle_more,
                       unsigned char **retbuf, size_t *retbuflen);
-
+const char *apdu_get_reader_name (int slot);
 
 #endif /*APDU_H*/

scd/ccid-driver.c

@@ -1542,7 +1542,8 @@ ccid_vendor_specific_init (ccid_driver_t handle)
 /* Open the reader with the internal number READERNO and return a
    pointer to be used as handle in HANDLE.  Returns 0 on success. */
 int
-ccid_open_reader (ccid_driver_t *handle, const char *readerid)
+ccid_open_reader (ccid_driver_t *handle, const char *readerid,
+                  const char **rdrname_p)
 {
   int rc = 0;
   struct usb_device *dev = NULL;
@@ -1661,6 +1662,9 @@ ccid_open_reader (ccid_driver_t *handle, const char *readerid)
       free (*handle);
       *handle = NULL;
     }
+  else
+    if (rdrname_p)
+      *rdrname_p = (*handle)->rid;
 
   return rc;
 }
@@ -3735,7 +3739,7 @@ main (int argc, char **argv)
         break;
     }
 
-  rc = ccid_open_reader (&ccid, argc? *argv:NULL);
+  rc = ccid_open_reader (&ccid, argc? *argv:NULL, NULL);
   if (rc)
     return 1;
 

scd/ccid-driver.h

@@ -111,7 +111,8 @@ typedef struct ccid_driver_s *ccid_driver_t;
 
 int ccid_set_debug_level (int level);
 char *ccid_get_reader_list (void);
-int ccid_open_reader (ccid_driver_t *handle, const char *readerid);
+int ccid_open_reader (ccid_driver_t *handle, const char *readerid,
+                      const char **rdrname_p);
 int ccid_set_progress_cb (ccid_driver_t handle,
                           void (*cb)(void *, const char *, int, int, int),
                           void *cb_arg);

scd/command.c

@@ -667,9 +667,18 @@ cmd_learn (assuan_context_t ctx, char *line)
      knows about this card */
   if (!only_keypairinfo)
     {
+      int slot;
+      const char *reader;
       char *serial;
       time_t stamp;
 
+      slot = vreader_slot (ctrl->server_local->vreader_idx);
+      reader = apdu_get_reader_name (slot);
+      if (!reader)
+        return out_of_core ();
+      send_status_direct (ctrl, "READER", reader);
+      /* No need to free the string of READER.  */
+
       rc = app_get_serial_and_stamp (ctrl->app_ctx, &serial, &stamp);
       if (rc)
         return rc;