-diff -urN -x'*.swp' ppp.old/pppd/auth.c ppp.dev/pppd/auth.c
---- ppp.old/pppd/auth.c 2004-11-12 11:30:51.000000000 +0100
-+++ ppp.dev/pppd/auth.c 2005-07-13 14:54:23.000000000 +0200
+Index: ppp-2.4.3/pppd/auth.c
+===================================================================
+--- ppp-2.4.3.orig/pppd/auth.c 2007-06-04 13:22:07.941647968 +0200
++++ ppp-2.4.3/pppd/auth.c 2007-06-04 13:22:13.340827168 +0200