From f8e99abf0aed17906b1efacaad9df24f217e4096 Mon Sep 17 00:00:00 2001
From: Ralph Corderoy <ralph@inputplus.co.uk>
Date: Fri, 21 Oct 2016 14:41:17 +0100
Subject: [PATCH] Assume POSIX ctype.h;  don't vet tolower()'s parameter.

---
 sbr/read_switch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sbr/read_switch.c b/sbr/read_switch.c
index dcc14b78..bb24dd4c 100644
--- a/sbr/read_switch.c
+++ b/sbr/read_switch.c
@@ -26,7 +26,7 @@ read_switch (const char *prompt, const struct swit *ansp)
 	    if (i == EOF)
 		return 0;
 	    if (cp < &ansbuf[sizeof ansbuf - 1]) {
-		i = (isalpha(i) && isupper(i)) ? tolower(i) : i;
+		i = tolower(i);
 		*cp++ = i;
 	    }
 	}
-- 
2.56.0