#!/usr/bin/bpftrace
#include <net/sock.h>

kprobe:udp_sendmsg,
kprobe:tcp_sendmsg
{
  $sk = (struct sock *)arg0;

  $daddr = ntop($sk->__sk_common.skc_daddr);

  printf("%-8d\t%s\t(%s)\n", pid, $daddr, comm);
}