diff -ruN dsniff-2.3/dsniff.8 dsniff-2.3-kos/dsniff.8
--- dsniff-2.3/dsniff.8	2000-12-15 11:05:36.000000000 -0500
+++ dsniff-2.3-kos/dsniff.8	2004-08-01 17:09:02.000000000 -0400
@@ -59,6 +59,8 @@
 .IP "\fB-w \fIfile\fR"
 Write sniffed sessions to \fIsavefile\fR rather than parsing and
 printing them out.
+.IP "\fB-R \fIpcap savefile\fR"
+Read in from previous capture file rather than a live connection.
 .IP "\fIexpression\fR"
 Specify a tcpdump(8) filter expression to select traffic to sniff.
 .LP
diff -ruN dsniff-2.3/dsniff.c dsniff-2.3-kos/dsniff.c
--- dsniff-2.3/dsniff.c	2000-12-01 16:27:15.000000000 -0500
+++ dsniff-2.3-kos/dsniff.c	2004-08-01 17:10:20.000000000 -0400
@@ -45,7 +45,8 @@
 {
 	fprintf(stderr, "Version: " VERSION "\n"
 		"Usage: dsniff [-cdmn] [-i interface] [-s snaplen] [-f services]\n"
-		"              [-t trigger[,...]] [-r|-w savefile] [expression]\n");
+		"              [-t trigger[,...]] [-r|-w savefile] [expression]\n"
+		"              [-R pcapfile]\n");
 	exit(1);
 }
 
@@ -75,7 +76,7 @@
 
 	services = savefile = triggers = NULL;
 	
-	while ((c = getopt(argc, argv, "cdf:i:mnr:s:t:w:h?V")) != -1) {
+	while ((c = getopt(argc, argv, "cdf:i:mnr:s:t:w:h?VR:")) != -1) {
 		switch (c) {
 		case 'c':
 			Opt_client = 1;
@@ -88,6 +89,7 @@
 			break;
 		case 'i':
 			nids_params.device = optarg;
+			nids_params.filename = NULL;
 			break;
 		case 'm':
 			Opt_magic = 1;
@@ -110,6 +112,10 @@
 			Opt_write = 1;
 			savefile = optarg;
 			break;
+		case 'R':
+			nids_params.filename = optarg;
+			nids_params.device = NULL;
+			break;
 		default:
 			usage();
 		}
@@ -163,11 +169,15 @@
 	}
 	else nids_register_tcp(trigger_tcp);
 	
-	if (nids_params.pcap_filter != NULL) {
-		warnx("listening on %s [%s]", nids_params.device,
-		      nids_params.pcap_filter);
+	if (nids_params.filename != NULL) {
+		warnx("reading from %s", nids_params.filename);
+	} else {
+		if (nids_params.pcap_filter != NULL) {
+			warnx("listening on %s [%s]", nids_params.device,
+			      nids_params.pcap_filter);
+		}
+		else warnx("listening on %s", nids_params.device);
 	}
-	else warnx("listening on %s", nids_params.device);
 	
 	nids_run();