1 files changed, 13 insertions, 0 deletions
diff --git a/scd/app-common.h b/scd/app-common.h
index 2619823dc..6bf432e65 100644
--- a/scd/app-common.h
+++ b/scd/app-common.h
@@ -119,6 +119,19 @@ struct app_ctx_s {
   } fnc;
 };
 
+
+/* Helper to get the slot from an APP object. */
+static inline int
+app_get_slot (app_t app)
+{
+  /* Note that this is a similar function of the one in 2.3 which we
+   * use to make back porting easier.  */
+  if (app)
+    return app->slot;
+  return -1;
+}
+
+
 /*-- app-help.c --*/
 unsigned int app_help_count_bits (const unsigned char *a, size_t len);
 gpg_error_t app_help_get_keygrip_string (ksba_cert_t cert, char *hexkeygrip);