1#@!#!123s

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Filename : tcpdumplike.stp

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#!/usr/bin/stap

// A TCP dump like example

probe begin, timer.s(1) {
  printf("-----------------------------------------------------------------\n")
  printf("       Source IP         Dest IP  SPort  DPort  U  A  P  R  S  F \n")
  printf("-----------------------------------------------------------------\n")
}

probe udp.recvmsg /* ,udp.sendmsg */ {
  printf(" %15s %15s  %5d  %5d  UDP\n",
         saddr, daddr, sport, dport)
}

probe tcp.receive {
  printf(" %15s %15s  %5d  %5d  %d  %d  %d  %d  %d  %d\n",
         saddr, daddr, sport, dport, urg, ack, psh, rst, syn, fin)
}