thing.go

package main

import (
    "fmt"
    "syscall"
    "unsafe"
)

type (
    DWORD uint32
)

type TCP_CONNECTION_OFFLOAD_STATE int

const (
    TcpConnectionOffloadStateInHost     TCP_CONNECTION_OFFLOAD_STATE = 0
    TcpConnectionOffloadStateOffloading TCP_CONNECTION_OFFLOAD_STATE = 1
    TcpConnectionOffloadStateOffloaded  TCP_CONNECTION_OFFLOAD_STATE = 2
    TcpConnectionOffloadStateUploading  TCP_CONNECTION_OFFLOAD_STATE = 3
    TcpConnectionOffloadStateMax        TCP_CONNECTION_OFFLOAD_STATE = 4
)

type MIB_TCPROW2 struct {
    dwState        DWORD
    dwLocalAddr    DWORD
    dwLocalPort    DWORD
    dwRemoteAddr   DWORD
    dwRemotePort   DWORD
    dwOwningPid    DWORD
    dwOffloadState TCP_CONNECTION_OFFLOAD_STATE
}

type MIB_TCPTABLE2 struct {
    dwNumEntries DWORD
    table        []MIB_TCPROW2
}

func main() {
    call := syscall.NewLazyDLL("Iphlpapi.dll")
    var table MIB_TCPTABLE2 = MIB_TCPTABLE2{}
    getTcpTable2 := call.NewProc("GetTcpTable2")
    bbb := true
    getTcpTable2.Call(uintptr(unsafe.Pointer(&table)), unsafe.Sizeof(table), uintptr(unsafe.Pointer(&bbb)))

    fmt.Println(table)
}