--- tcpdump-3.4/interface.h	Thu May 29 04:54:45 1997
+++ tcpdump-3.4-new/interface.h	Fri Apr  7 09:45:24 2000
@@ -35,6 +35,7 @@
 };
 
 extern int aflag;		/* translate network and broadcast addresses */
+extern int Aflag;		/* print packet in visible ascii character */
 extern int dflag;		/* print filter code */
 extern int eflag;		/* print ethernet header */
 extern int fflag;		/* don't translate "foreign" IP address */
@@ -67,6 +68,7 @@
  * 14 bytes of data (assuming no ip options).
  */
 #define DEFAULT_SNAPLEN 68
+#define MAX_SNAPLEN 1500
 
 #ifndef BIG_ENDIAN
 #define BIG_ENDIAN 4321