* written by Jaron ,2003-11-21 */
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/* 检测MAC的组件(ActiveX DLL)源代码
/* 在ASP中，通过自写组件的方式获取服务器当前的网卡地址
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
&
