From 354c843b2e69a4f58325428738c5df11b1ecbc18 Mon Sep 17 00:00:00 2001
From: deraadt <deraadt@openbsd.org>
Date: Tue, 2 Apr 2024 12:22:38 +0000
Subject: [PATCH] Oops, incorrect hex conversion spotted by claudio.  While
 here try to improve how it reads a bit better.  Surprising the regression
 tests didn't spot this error, maybe it fails to roundtrip the values.

---
 usr.bin/ssh/ssh-pkcs11.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/usr.bin/ssh/ssh-pkcs11.c b/usr.bin/ssh/ssh-pkcs11.c
index 69bff22f07a..e6c53f00e02 100644
--- a/usr.bin/ssh/ssh-pkcs11.c
+++ b/usr.bin/ssh/ssh-pkcs11.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssh-pkcs11.c,v 1.61 2024/04/02 09:48:24 claudio Exp $ */
+/* $OpenBSD: ssh-pkcs11.c,v 1.62 2024/04/02 12:22:38 deraadt Exp $ */
 /*
  * Copyright (c) 2010 Markus Friedl.  All rights reserved.
  * Copyright (c) 2014 Pedro Martelletto. All rights reserved.
@@ -1364,14 +1364,13 @@ static int
 h2i(char c)
 {
 	if (c >= '0' && c <= '9')
-		c -= '0';
+		return c - '0';
 	else if (c >= 'a' && c <= 'f')
-		c -= 'a';
+		return c - 'a' + 10;
 	else if (c >= 'A' && c <= 'F')
-		c -= 'A';
+		return c - 'A' + 10;
 	else
 		return -1;
-	return c;
 }
 
 static int
-- 
2.20.1