Cast ctype function arguments to unsigned char.

ok guenther@

diff --git a/lib/libpcap/inet.c b/lib/libpcap/inet.c
index 05c2cf7..6d49555 100644 (file)
--- a/lib/libpcap/inet.c
+++ b/lib/libpcap/inet.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: inet.c,v 1.20 2015/01/16 16:48:51 deraadt Exp $       */
+/*     $OpenBSD: inet.c,v 1.21 2015/10/24 05:26:00 mmcc Exp $  */
 
 /*
  * Copyright (c) 1994, 1995, 1996, 1997, 1998
@@ -140,7 +140,7 @@ pcap_lookupdev(errbuf)
                        continue;
                if (ISLOOPBACK(ifa->ifa_name, ifa->ifa_flags))
                        continue;
-               for (cp = ifa->ifa_name; !isdigit(*cp); ++cp)
+               for (cp = ifa->ifa_name; !isdigit((unsigned char)*cp); ++cp)
                        continue;
                n = atoi(cp);
                if (n < minunit) {
@@ -224,7 +224,7 @@ pcap_lookupdev(errbuf)
                    ISLOOPBACK(ifr.ifr_name, ifr.ifr_flags))
                        continue;
 
-               for (cp = ifrp->ifr_name; !isdigit(*cp); ++cp)
+               for (cp = ifrp->ifr_name; !isdigit((unsigned char)*cp); ++cp)
                        continue;
                n = atoi(cp);
                if (n < minunit) {