首先用了walk里面的一个winapi.go
// Copyright The go-winapi Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package winapi
import (
"runtime"
"syscall"
"unsafe"
)
func init() {
runtime.LockOSThread()
}
const (
S_OK = 0x00000000
S_FALSE = 0x00000001
E_UNEXPECTED = 0x8000FFFF
E_NOTIMPL = 0x80004001
E_OUTOFMEMORY = 0x8007000E
E_INVALIDARG = 0x80070057
E_NOINTERFACE = 0x80004002
E_POINTER = 0x80004003
E_HANDLE = 0x80070006
E_ABORT = 0x80004004
E_FAIL = 0x80004005
E_ACCESSDENIED = 0x80070005
E_PENDING = 0x8000000A
)
const (
FALSE = 0
TRUE = 1
)
type (
BOOL int32
HRESULT int32
)
type GUID struct {
Data1 uint32
Data2 uint16
Data3 uint16
Data4 [8]byte
}
func MustLoadLibrary(name string) uintptr {
lib, err := syscall.LoadLibrary(name)
if err != nil {
panic(err)
}
return uintptr(lib)
}
func MustGetProcAddress(lib uintptr, name string) uintptr {
addr, err := syscall.GetProcAddress(syscall.Handle(lib), name)
if err != nil {
panic(err)
}
return uintptr(addr)
}
func SUCCEEDED(hr HRESULT) bool {
return hr >= 0
}
func FAILED(hr HRESULT) bool {
return hr < 0
}
func MAKELONG(lo, hi uint16) uint32 {
return uint32(uint32(lo) | ((uint32(hi)) << 16))
}
func LOWORD(dw uint32) uint16 {
return uint16(dw)
}
func HIWORD(dw uint32) uint16 {
return uint16(dw >> 16 & 0xffff)
}
func UTF16PtrToString(s *uint16) string {
return syscall.UTF16ToString((*[1 << 29]uint16)(unsafe.Pointer(s))[0:])
}
func MAKEINTRESOURCE(id uintptr) *uint16 {
return (*uint16)(unsafe.Pointer(id))
}
func BoolToBOOL(value bool) BOOL {
if value {
return 1
}
return 0
}
具体的SendARP实现
package winapi
import (
"syscall"
"unsafe"
)
var (
// Library
libIphlpapi uintptr
libWs2_32 uintptr
// Functions
sendARP uintptr
inet_addr uintptr
)
func init() {
// library
libIphlpapi = MustLoadLibrary("Iphlpapi.dll")
libWs2_32 = MustLoadLibrary("Ws2_32.dll")
// Functions
/** SendARP(DestIp IPAddr, SrcIp IPAddr, &MacAddr, &PhysAddrLen ULONG) **/
sendARP = MustGetProcAddress(libIphlpapi, "SendARP")
inet_addr = MustGetProcAddress(libWs2_32, "inet_addr")
}
/**
* macAddr是目标的MAC地址
*/
func SendARP(destIP, srcIP int32, macAddr *int64, physAddrLen *int) int {
ret, _, _ := syscall.Syscall6(sendARP, 4,
uintptr(destIP),
uintptr(srcIP),
uintptr(unsafe.Pointer(macAddr)),
uintptr(unsafe.Pointer(physAddrLen)),
0,
0)
return int(ret)
}
func Inet_addr(ipaddr string) (result int32) {
ret, _, _ := syscall.Syscall(inet_addr, 1, // 1表示有一个参数
uintptr(unsafe.Pointer(syscall.StringBytePtr(ipaddr))),
0,
0)
return int32(ret)
}
调用
package main
import (
"lqz/system/winapi"
// "strconv"
// "strings"
// "os"
"log"
"fmt"
)
func main() {
for i := 1; i <= 100; i++ {
getMac(fmt.Sprintf("192.168.2.%d", i))
}
}
func getMac(ip string) {
var macLen int = 6
var mac int64 = 0
destIP := winapi.Inet_addr(ip)
result := winapi.SendARP(destIP, 0, &mac, &macLen)
if result == 0 {
log.Print(ip)
pyMac := fmt.Sprintf("%012X", mac)
x := 2 * macLen
var tempMac string
for i := 0; i < macLen; i++ {
if i == (macLen - 1) {
tempMac = tempMac + pyMac[x-2:x]
} else {
tempMac = tempMac + pyMac[x-2:x] + "-"
}
x -= 2
}
log.Println(tempMac)
}
}
感觉还有点缺陷，比如说那个0， 应该在上面定义好的，但是我不知道这个面的值，都表示什么意思，只知道0是NOERROR,还有其他信息，但是我看MSDN上面的SendARP里面没有给出值，这个以后补上
