From b1545e4ccc4fb4f2231317032b99e48c0c04181a Mon Sep 17 00:00:00 2001
From: Nick Briggs <nicholas.h.briggs@gmail.com>
Date: Thu, 9 Sep 2021 18:01:02 -0700
Subject: [PATCH] fix 'signed char' to 'int' conversion [cert-str34-c]

Fortunately here we don't need to convert to unsigned char then int,
we can do the only comparisons we need staying in the char domain.
---
 src/dsk.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/dsk.c b/src/dsk.c
index 277bbbb..1908cc2 100644
--- a/src/dsk.c
+++ b/src/dsk.c
@@ -2502,8 +2502,8 @@ int true_name(register char *path)
 #ifdef DOS
   char drive[1];
 #endif
-  register char *sp, *cp;
-  register int type, c;
+  register char c, *sp, *cp;
+  register int type;
 
   if (strcmp(path, "/") == 0) return (-1);