make loopback interface detection consistent. /^(lo|lo[0-9])$/

diff --git a/inet.c b/inet.c
index f6c5a6715f50f44e9b517834c9fc601238c260c7..c9830c6bbbed1214719fc2c42727faf9d84a2a44 100644 (file)
--- a/inet.c
+++ b/inet.c
@@ -33,7 +33,7 @@
 
 #ifndef lint
 static const char rcsid[] =
-    "@(#) $Header: /tcpdump/master/libpcap/inet.c,v 1.28 2000-04-09 20:59:31 assar Exp $ (LBL)";
+    "@(#) $Header: /tcpdump/master/libpcap/inet.c,v 1.29 2000-04-13 04:58:09 itojun Exp $ (LBL)";
 #endif
 
 #include <sys/param.h>
@@ -108,8 +108,10 @@ pcap_lookupdev(errbuf)
                if ((ifa->ifa_flags & IFF_LOOPBACK) != 0)
                        continue;
 #else
-               if (strcmp(ifa->ifa_name, "lo0") == 0)
+               if (strncmp(ifa->ifa_name, "lo", 2) == 0 &&
+                   (ifa->ifa_name[2] == '\0' || isdigit(ifa->ifa_name[2]))) {
                        continue;
+               }
 #endif
 
                for (cp = ifa->ifa_name; !isdigit(*cp); ++cp)