--- ../arpwatch.orig/arpsnmp.c	Sun Jan 17 20:47:40 1999
+++ ./arpsnmp.c	Mon Sep 15 14:31:33 2003
@@ -63,14 +63,17 @@
 /* Forwards */
 int	main(int, char **);
 int	readsnmp(char *);
-int	snmp_add(u_int32_t, u_char *, time_t, char *);
+int	snmp_add(u_int32_t, u_char *, time_t, char *, char *);
 __dead	void usage(void) __attribute__((volatile));

 char *prog;

+char *Watcher;
+
 extern int optind;
 extern int opterr;
 extern char *optarg;
+char *interface = NULL;

 int
 main(int argc, char **argv)
@@ -90,7 +93,7 @@
 	}

 	opterr = 0;
-	while ((op = getopt(argc, argv, "df:")) != EOF)
+	while ((op = getopt(argc, argv, "df:m:")) != EOF)
 		switch (op) {

 		case 'd':
@@ -105,6 +108,10 @@
 			arpfile = optarg;
 			break;

+		case 'm':
+			Watcher = optarg;
+			break;
+
 		default:
 			usage();
 		}
@@ -138,7 +145,7 @@
 static time_t now;

 int
-snmp_add(register u_int32_t a, register u_char *e, time_t t, register char *h)
+snmp_add(register u_int32_t a, register u_char *e, time_t t, register char *h, register char *i)
 {
 	/* Watch for ethernet broadcast */
 	if (MEMCMP(e, zero, 6) == 0 || MEMCMP(e, allones, 6) == 0) {
@@ -153,7 +160,7 @@
 	}

 	/* Use current time (although it would be nice to subtract idle time) */
-	return (ent_add(a, e, now, h));
+	return (ent_add(a, e, now, h, interface));
 }

 /* Process an snmp file */
@@ -184,6 +191,6 @@

 	(void)fprintf(stderr, "Version %s\n", version);
 	(void)fprintf(stderr,
-	    "usage: %s [-d] [-f datafile] file [...]\n", prog);
+	    "usage: %s [-d] [-f datafile] [-m email] file [...]\n", prog);
 	exit(1);
 }