+ pkts := make(map[string]struct{})
+ if *doPkt {
+ raw, err := io.ReadAll(os.Stdin)
+ if err != nil {
+ log.Fatalln("can not read -pkt from stdin:", err)
+ }
+ for _, line := range strings.Split(string(raw), "\n") {
+ if len(line) == 0 {
+ continue
+ }
+ cols := strings.Split(line, "/")
+ pkts[cols[len(cols)-1]] = struct{}{}
+ }
+ }
+