Cast isxdigit()'s argument to unsigned char.

ok guenther@

diff --git a/lib/libpcap/nametoaddr.c b/lib/libpcap/nametoaddr.c
index ef98b50..9013d68 100644 (file)
--- a/lib/libpcap/nametoaddr.c
+++ b/lib/libpcap/nametoaddr.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: nametoaddr.c,v 1.16 2015/01/16 03:19:57 lteo Exp $    */
+/*     $OpenBSD: nametoaddr.c,v 1.17 2015/10/24 06:07:43 mmcc Exp $    */
 
 /*
  * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996
@@ -324,7 +324,7 @@ pcap_ether_aton(const char *s)
                if (*s == ':')
                        s += 1;
                d = xdtoi(*s++);
-               if (isxdigit(*s)) {
+               if (isxdigit((unsigned char)*s)) {
                        d <<= 4;
                        d |= xdtoi(*s++);
                }