From efb83fa8317040d763df81426e414a0732491621 Mon Sep 17 00:00:00 2001
From: Paul Koning <ni1d@arrl.net>
Date: Mon, 21 Mar 2022 13:43:30 -0400
Subject: [PATCH] DISK: Fix off by one error in reporting RSTS file structure
 info

This fixes issue #1106 -- the last sector number reported was
off by one (sector past the last free sector).
---
 sim_disk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sim_disk.c b/sim_disk.c
index 6b90d9e5..77993ebf 100644
--- a/sim_disk.c
+++ b/sim_disk.c
@@ -1952,7 +1952,7 @@ if (uar != 0) {
                             }
                     }
         scanDone:
-            *result = (t_offset)(blocks + 1) * context->pcs;
+            *result = ((t_offset)(blocks + 1) * context->pcs) - 1;
             return SCPE_OK;
             }
         }