Add a pcap-split tool

internal/web/hex2pcap_test.go

@@ -102,7 +102,8 @@ func TestPcapFilename(t *testing.T) {
 		"  ":            "packet.pcap",
 		"dns query":     "dns_query.pcap",
 		"x.pcap":        "x.pcap",
-		"../etc/passwd": ".._etc_passwd.pcap",
+		"../etc/passwd": "passwd.pcap",
+		`C:\\x\\y.pcap`: "y.pcap",
 		`a"b`:           "a_b.pcap",
 	} {
 		if got := pcapFilename(in); got != want {
@@ -112,7 +113,7 @@ func TestPcapFilename(t *testing.T) {
 }
 
 func TestHandlers(t *testing.T) {
-	srv, err := New()
+	srv, err := New(Config{MaxUploadBytes: 1 << 20})
 	if err != nil {
 		t.Fatal(err)
 	}