asp 获取本地网卡地址_ASP获得网卡的MAC地址

Private Const NCBASTAT = &H33

Private Const NCBNAMSZ = 16

Private Const HEAP_ZERO_MEMORY = &H8

Private Const HEAP_GENERATE_EXCEPTIONS = &H4

Private Const NCBRESET = &H32

Private Type NCB

ncb_command As Byte 'Integer

ncb_retcode As Byte 'Integer

ncb_lsn As Byte 'Integer

ncb_num As Byte ' Integer

ncb_buffer As Long 'String

ncb_length As Integer

ncb_callname As String * NCBNAMSZ

ncb_name As String * NCBNAMSZ

ncb_rto As Byte 'Integer

ncb_sto As Byte ' Integer

ncb_post As Long

ncb_lana_num As Byte 'Integer

ncb_cmd_cplt As Byte  'Integer

ncb_reserve(9) As Byte ' Reserved, must be 0

ncb_event As Long

End Type

Private Type ADAPTER_STATUS

adapter_address(5) As Byte 'As String * 6

rev_major As Byte 'Integer

reserved0 As Byte 'Integer

adapter_type As Byte 'Integer

rev_minor As Byte 'Integer

duration As Integer

frmr_recv As Integer

frmr_xmit As Integer

iframe_recv_err As Integer

xmit_aborts As Integer

xmit_success As Long

recv_success As Long

iframe_xmit_err As Integer

recv_buff_unavail As Integer

t1_timeouts As Integer

ti_timeouts As Integer

Reserved1 As Long

free_ncbs As Integer

max_cfg_ncbs As Integer

max_ncbs As Integer

xmit_buf_unavail As Integer

max_dgram_size As Integer

pending_sess As Integer

max_cfg_sess As Integer

max_sess As Integer

max_sess_pkt_size As Integer

name_count As Integer

End Type

Private Type NAME_BUFFER

name  As String * NCBNAMSZ

name_num As Integer

name_flags As Integer

End Type

Private Type ASTAT

adapt As ADAPTER_STATUS

NameBuff(30) As NAME_BUFFER

End Type

Private Declare Function Netbios Lib "netapi32.dll" _

(pncb As NCB) As Byte

Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" ( _

hpvDest As Any, ByVal hpvSource As Long, ByVal cbCopy As Long)

Private Declare Function GetProcessHeap Lib "kernel32" () As Long

Private Declare Function HeapAlloc Lib "kernel32" _

(ByVal hHeap As Long, ByVal dwFlags As Long, _

ByVal dwBytes As Long) As Long

Private Declare Function HeapFree Lib "kernel32" (ByVal hHeap As Long, _

ByVal dwFlags As Long, lpMem As Any) As Long

Public Function GetMACAddress(sIP As String) As String

Dim sRtn As String

Dim myNcb As NCB

Dim bRet As Byte

Dim aIP() As String

Dim x As Long

Dim nIP As String

If InStr(sIP, ".") = 0 Then

GetMACAddress = "无效的IP地址."

Exit Function

End If

aIP = Split(sIP, ".", -1, vbTextCompare)

If UBound(aIP()) <> 3 Then

GetMACAddress = "无效的IP地址."

Exit Function

End If

For x = 0 To UBound(aIP())

If Len(aIP(x)) > 3 Then

GetMACAddress = "无效的IP地址"

Exit Function

End If

If IsNumeric(aIP(x)) = False Then

GetMACAddress = "无效的IP地址"

Exit Function

End If

If InStr(aIP(x), ",") <> 0 Then

GetMACAddress = "无效的IP地址"

Exit Function

End If

If CLng(aIP(x)) > 255 Then

GetMACAddress = "无效的IP地址"

Exit Function

End If

If nIP = "" Then

nIP = String(3 - Len(aIP(x)), "0") & aIP(x)

Else

nIP = nIP & "." & String(3 - Len(aIP(x)), "0") & aIP(x)

End If

Next

sRtn = ""

myNcb.ncb_command = NCBRESET

bRet = Netbios(myNcb)

myNcb.ncb_command = NCBASTAT

myNcb.ncb_lana_num = 0

myNcb.ncb_callname = nIP & Chr(0)

Dim myASTAT As ASTAT, tempASTAT As ASTAT

Dim pASTAT As Long

myNcb.ncb_length = Len(myASTAT)

pASTAT = HeapAlloc(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS Or HEAP_ZERO_MEMORY, myNcb.ncb_length)

If pASTAT = 0 Then

GetMACAddress = "memory allcoation failed!"

Exit Function

End If

myNcb.ncb_buffer = pASTAT

bRet = Netbios(myNcb)

If bRet <> 0 Then

GetMACAddress = "不能从当前IP地址获得MAC，当前IP地址: " & sIP

Exit Function

End If

CopyMemory myASTAT, myNcb.ncb_buffer, Len(myASTAT)

Dim sTemp As String

Dim i As Long

For i = 0 To 5

sTemp = Hex(myASTAT.adapt.adapter_address(i))

If i = 0 Then

sRtn = IIf(Len(sTemp) < 2, "0" & sTemp, sTemp)

Else

sRtn = sRtn & Space(1) & IIf(Len(sTemp) < 2, "0" & sTemp, sTemp)

End If

Next

HeapFree GetProcessHeap(), 0, pASTAT

GetMACAddress = sRtn

End Function

%>

set S_MAC = server.CreateObject( "adodb.recordset")

response.write S_MAC.GetMACAddress(Request.Servervariables("REMOTE_HOST"))

set S_MAC = nothing

%>

转自: http://goaler.xicp.net/ShowLog.asp?ID=461