ASP获得网卡的MAC地址

最新推荐文章于 2022-01-12 16:52:13 发布

AppleBBS

最新推荐文章于 2022-01-12 16:52:13 发布

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分类专栏： ASP 文章标签： asp integer function string byte buffer

本文链接：https://blog.youkuaiyun.com/AppleBBS/article/details/256957

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该博客主要展示了一段ASP代码，用于根据给定的IP地址获取对应的MAC地址。代码中定义了多个常量和类型，声明了多个函数，通过Netbios等操作进行处理，同时对输入的IP地址进行有效性检查，最终实现获取MAC地址的功能。

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<% Option Explicit%>

<%
   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