知道局域网内一台机器的计算机名和IP，怎样得到网卡号或其他唯一标示机器的标志

[lidong004]

d

[饮水需思源]

其IP就是唯一标示机器的标志

[cawangjun]

楼主应该是指唯一标志该机器的信息吧。

本来MAC地址可以的，但是，现在连MAC地址都可以伪造！！！

[zqfleaf]

其他唯一标志是什么意思？？用IP吧
网卡号：如果只是知道 可以用以下命令
c:>nbtstat -a ipaddress

[holydiablo]

步骤：
1)在Visual Basic生成标准的EXE文件。缺省创建 Form1。
2)在Form1中添加一命令按钮，缺省名为Command1。
3)把下列代码放到Form1中说明部分。

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



把下面的代码放入Command1_Click的事件中：



Private Sub Command1_Click()

　　Dim myNcb As NCB

　　Dim bRet As Byte

　　myNcb.ncb_command = NCBRESET

　　bRet = Netbios(myNcb)

　　myNcb.ncb_command = NCBASTAT

　　myNcb.ncb_lana_num = 0

　　myNcb.ncb_callname = "*　　　　　　 "

　　Dim myASTAT As ASTAT, tempASTAT As ASTAT

　　Dim pASTAT As Long

　　myNcb.ncb_length = Len(myASTAT)

　　Debug.Print Err.LastDllError

　　pASTAT = HeapAlloc(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS _

　　　　Or HEAP_ZERO_MEMORY, myNcb.ncb_length)

　　If pASTAT = 0 Then

　　　　Debug.Print "memory allcoation failed!"

　　　　Exit Sub

　　End If

　　myNcb.ncb_buffer = pASTAT

　　bRet = Netbios(myNcb)

　　Debug.Print Err.LastDllError

　　CopyMemory myASTAT, myNcb.ncb_buffer, Len(myASTAT)

　　MsgBox Hex(myASTAT.adapt.adapter_address(0)) & " " & _

　　　　Hex(myASTAT.adapt.adapter_address(1)) _

　　　　& " " & Hex(myASTAT.adapt.adapter_address(2)) & " " _

　　　　& Hex(myASTAT.adapt.adapter_address(3)) _

　　　　& " " & Hex(myASTAT.adapt.adapter_address(4)) & " " _

　　　　& Hex(myASTAT.adapt.adapter_address(5))

　　HeapFree GetProcessHeap(), 0, pASTAT

End Sub

4)按F5，运行该程序。

5)点击Command1。注意，网卡地址将在一信息框中显示出来。

[AechoJohn]

鱼头，偶的出来的是6个0呀！

[lidong004]

我想得到的是其他机器的唯一表示，谢谢再帮看看

[用户 昵称]

try this
Private Const MAX_COMPUTERNAME_LENGTH As Long = 31
Private Declare Function GetComputerName Lib "kernel32" Alias "GetComputerNameA" (ByVal lpBuffer As String, nSize As Long) As Long
Private Sub Form_Load()
Dim dwLen As Long
Dim strString As String
'Create a buffer
dwLen = MAX_COMPUTERNAME_LENGTH + 1
strString = String(dwLen, "X")
'Get the computer name
GetComputerName strString, dwLen
'get only the actual data
strString = Left(strString, dwLen)
'Show the computer name
MsgBox strString
End Sub
Option Explicit

'**************为取网卡地址的API声明**************

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
ncb_retcode As Byte
ncb_lsn As Byte
ncb_num As Byte
ncb_buffer As Long
ncb_length As Integer
ncb_callname As String * NCBNAMSZ
ncb_name As String * NCBNAMSZ
ncb_rto As Byte
ncb_sto As Byte
ncb_post As Long
ncb_lana_num As Byte
ncb_cmd_cplt As Byte
ncb_reserve(9) As Byte ' Reserved, must be 0
ncb_event As Long
End Type

Private Type ADAPTER_STATUS
adapter_address(5) As Byte
rev_major As Byte
reserved0 As Byte
adapter_type As Byte
rev_minor As Byte
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

'**********************************
'* 得到网卡地址
'* EthernetAddress(0)
'* 返回值:字符串
'**********************************
Public Function EthernetAddress(LanaNumber As Long) As String
Dim udtNCB As NCB
Dim bytResponse As Byte
Dim udtASTAT As ASTAT
Dim udtTempASTAT As ASTAT
Dim lngASTAT As Long
Dim strOut As String
Dim x As Integer
udtNCB.ncb_command = NCBRESET
bytResponse = Netbios(udtNCB)
udtNCB.ncb_command = NCBASTAT
udtNCB.ncb_lana_num = LanaNumber
udtNCB.ncb_callname = "* "
udtNCB.ncb_length = Len(udtASTAT)
lngASTAT = HeapAlloc(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS Or HEAP_ZERO_MEMORY, udtNCB.ncb_length)
strOut = ""
If lngASTAT Then
udtNCB.ncb_buffer = lngASTAT
bytResponse = Netbios(udtNCB)
CopyMemory udtASTAT, udtNCB.ncb_buffer, Len(udtASTAT)
With udtASTAT.adapt
For x = 0 To 5
strOut = strOut & Right$("00" & Hex$(.adapter_address(x)), 2)
Next x
End With
HeapFree GetProcessHeap(), 0, lngASTAT
End If
EthernetAddress = strOut
End Function
'得到IP地址
'屏幕调用 LocalIPAddress()

Option Explicit

Public Const MAX_ADAPTER_NAME_LENGTH As Long = 256
Public Const MAX_ADAPTER_DESCRIPTION_LENGTH As Long = 128
Public Const MAX_ADAPTER_ADDRESS_LENGTH As Long = 8
Public Const ERROR_SUCCESS As Long = 0

Public Type IP_ADDRESS_STRING
IpAddr(0 To 15) As Byte
End Type

Public Type IP_MASK_STRING
IpMask(0 To 15) As Byte
End Type

Public Type IP_ADDR_STRING
dwNext As Long
IpAddress As IP_ADDRESS_STRING
IpMask As IP_MASK_STRING
dwContext As Long
End Type

Public Type IP_ADAPTER_INFO
dwNext As Long
ComboIndex As Long '保留
sAdapterName(0 To (MAX_ADAPTER_NAME_LENGTH + 3)) As Byte
sDescription(0 To (MAX_ADAPTER_DESCRIPTION_LENGTH + 3)) As Byte
dwAddressLength As Long
sIPAddress(0 To (MAX_ADAPTER_ADDRESS_LENGTH - 1)) As Byte
dwIndex As Long
uType As Long
uDhcpEnabled As Long
CurrentIpAddress As Long
IpAddressList As IP_ADDR_STRING
GatewayList As IP_ADDR_STRING
DhcpServer As IP_ADDR_STRING
bHaveWins As Long
PrimaryWinsServer As IP_ADDR_STRING
SecondaryWinsServer As IP_ADDR_STRING
LeaseObtained As Long
LeaseExpires As Long
End Type

Public Declare Function GetAdaptersInfo Lib "iphlpapi.dll" _
(pTcpTable As Any, _
pdwSize As Long) As Long

Public Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" _
(dst As Any, _
src As Any, _
ByVal bcount As Long)


Function LocalIPAddress() As String
Dim cbRequired As Long
Dim buff() As Byte
Dim Adapter As IP_ADAPTER_INFO
Dim AdapterStr As IP_ADDR_STRING
Dim ptr1 As Long
Dim sIPAddr As String
Dim found As Boolean
Call GetAdaptersInfo(ByVal 0&, cbRequired)
If cbRequired > 0 Then
ReDim buff(0 To cbRequired - 1) As Byte
If GetAdaptersInfo(buff(0), cbRequired) = ERROR_SUCCESS Then
'获取存放在buff()中的数据的指针
ptr1 = VarPtr(buff(0))
Do While (ptr1 <> 0)
'将第一个网卡的数据转换到IP_ADAPTER_INFO结构中
CopyMemory Adapter, ByVal ptr1, LenB(Adapter)
With Adapter
'IpAddress.IpAddr成员给出了DHCP的IP地址
sIPAddr = TrimNull(StrConv(.IpAddressList.IpAddress.IpAddr, vbUnicode))
If Len(sIPAddr) > 0 Then
found = True
Exit Do
End If
ptr1 = .dwNext
End With 'With Adapter
'不再有网卡时，ptr1的值为0
Loop 'Do While (ptr1 <> 0)
End If 'If GetAdaptersInfo
End If 'If cbRequired > 0
'返回结果字符串
LocalIPAddress = sIPAddr
End Function

Function TrimNull(item As String)
Dim pos As Integer
pos = InStr(item, Chr$(0))
If pos Then
TrimNull = Left$(item, pos - 1)
Else: TrimNull = item
End If
End Function

[lidong004]

还是慢，没有更好的算法吗？

[hfwpq]

顺便问一下，怎么能得到虚拟IP?

[benxie]

在FORM1里加一个command1 . label1
然后copy 下面的代码：不快找我。

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

Private Sub Command1_Click()
Dim myNcb As NCB
Dim bRet As Byte
myNcb.ncb_command = NCBRESET
bRet = Netbios(myNcb)
myNcb.ncb_command = NCBASTAT
myNcb.ncb_lana_num = 0
myNcb.ncb_callname = "*　　　　　　 "
Dim myASTAT As ASTAT, tempASTAT As ASTAT
Dim pASTAT As Long
myNcb.ncb_length = Len(myASTAT)
Debug.Print Err.LastDllError
pASTAT = HeapAlloc(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS _
Or HEAP_ZERO_MEMORY, myNcb.ncb_length)
If pASTAT = 0 Then
Debug.Print "memory allcoation failed!"
Exit Sub
End If
myNcb.ncb_buffer = pASTAT
bRet = Netbios(myNcb)
Debug.Print Err.LastDllError
CopyMemory myASTAT, myNcb.ncb_buffer, Len(myASTAT)
' MsgBox Hex(myASTAT.adapt.adapter_address(0)) & " " & _
Hex(myASTAT.adapt.adapter_address(1)) _
& " " & Hex(myASTAT.adapt.adapter_address(2)) & " " _
& Hex(myASTAT.adapt.adapter_address(3)) _
& " " & Hex(myASTAT.adapt.adapter_address(4)) & " " _
& Hex(myASTAT.adapt.adapter_address(5))
Label1.Caption = Hex(myASTAT.adapt.adapter_address(0)) & _
Hex(myASTAT.adapt.adapter_address(1)) _
& Hex(myASTAT.adapt.adapter_address(2)) _
& Hex(myASTAT.adapt.adapter_address(3)) _
& Hex(myASTAT.adapt.adapter_address(4)) _
& Hex(myASTAT.adapt.adapter_address(5))

HeapFree GetProcessHeap(), 0, pASTAT
End Sub

Private Sub Form_Load()

End Sub