[名称] vb中从域名得到IP及从IP得到域名[数据来源] 未知[保存时间] 2003-01-03[内容简介] 空[源代码内容]Private Const WS_VERSION_REQD = &H101 Private Const WS_VERSION_MAJOR = WS_VERSION_REQD \ &H100 And &HFF& Private Const WS_VERSION_MINOR = WS_VERSION_REQD And &HFF& Private Const MIN_SOCKETS_REQD = 1 Private Const SOCKET_ERROR = -1 Private Const WSADescription_Len = 256 Private Const WSASYS_Status_Len = 128Private Type HOSTENT hname As Long hAliases As Long hAddrType As Integer hLength As Integer hAddrList As Long End TypePrivate Type WSADATA wversion As Integer wHighVersion As Integer szDescription(0 To WSADescription_Len) As Byte szSystemStatus(0 To WSASYS_Status_Len) As Byte iMaxSockets As Integer iMaxUdpDg As Integer lpszVendorInfo As Long End Type Private Declare Function gethostbyaddr Lib "WSOCK32.DLL" (addr As Any, ByVal _ byteslen As Integer, addrtype As Integer) As Long Private Declare Function WSAGetLastError Lib "WSOCK32.DLL" () As Long Private Declare Function WSAStartup Lib "WSOCK32.DLL" (ByVal _ wVersionRequired&, lpWSAData As WSADATA) As Long Private Declare Function WSACleanup Lib "WSOCK32.DLL" () As Long Private Declare Function gethostbyname Lib "WSOCK32.DLL" (ByVal _ hostname$) As Long Private Declare Sub RtlMoveMemory Lib "KERNEL32" (hpvDest As Any, _ ByVal hpvSource&, ByVal cbCopy&)Function hibyte(ByVal wParam As Integer) '获得整数的高位 hibyte = wParam \ &H100 And &HFF& End FunctionFunction lobyte(ByVal wParam As Integer) '获得整数的低位 lobyte = wParam And &HFF& End FunctionFunction SocketsInitialize() Dim WSAD As WSADATA Dim iReturn As Integer Dim sLowByte As String, sHighByte As String, sMsg As String
iReturn = WSAStartup(WS_VERSION_REQD, WSAD)
If iReturn <> 0 Then MsgBox "Winsock.dll 没有反应." End End If
If lobyte(WSAD.wversion) < WS_VERSION_MAJOR Or (lobyte(WSAD.wversion) = WS_VERSION_MAJOR And hibyte(WSAD.wversion) < WS_VERSION_MINOR) Then sHighByte = Trim$(str$(hibyte(WSAD.wversion))) sLowByte = Trim$(str$(lobyte(WSAD.wversion))) sMsg = "Windows Sockets版本 " & sLowByte & "." & sHighByte sMsg = sMsg & " 不被winsock.dll支持 " MsgBox sMsg End End If
If WSAD.iMaxSockets < MIN_SOCKETS_REQD Then sMsg = "这个系统需要的最少Sockets数为 " sMsg = sMsg & Trim$(str$(MIN_SOCKETS_REQD)) MsgBox sMsg End End If
End FunctionSub SocketsCleanup() Dim lReturn As Long
lReturn = WSACleanup()
If lReturn <> 0 Then MsgBox "Socket错误 " & Trim$(str$(lReturn)) & " occurred in Cleanup " End End If End Sub Sub Form_Load() '初始化Socket SocketsInitialize End SubPrivate Sub Form_Unload(Cancel As Integer) '清除Socket SocketsCleanup End Sub Private Function getip(name As String) As String Dim hostent_addr As Long Dim host As HOSTENT Dim hostip_addr As Long Dim temp_ip_address() As Byte Dim i As Integer Dim ip_address As String
hostent_addr = gethostbyname(name)
If hostent_addr = 0 Then getip = "" '主机名不能被解释 Exit Function End If
ReDim temp_ip_address(1 To host.hLength) RtlMoveMemory temp_ip_address(1), hostip_addr, host.hLength
For i = 1 To host.hLength ip_address = ip_address & temp_ip_address(i) & "." Next ip_address = Mid$(ip_address, 1, Len(ip_address) - 1)
getip = ip_addressEnd FunctionPrivate Sub Command1_click() Dim str As String str = getip(Text1.Text) If str = "" Then Text2.Text = "主机名不能被解释" Else Text2.Text = str End If End Sub Private Function getname(addrstr As String) As String Dim hostent_addr As Long Dim host As HOSTENT Dim addr(0 To 50) As Byte Dim addrs As String Dim hname(1 To 50) As Byte Dim str As String Dim i As Integer, j As Integer Dim temp_int As Integer Dim byt As Byte str = Trim$(addrstr) i = 0 j = 0 Do temp_int = 0 i = i + 1 Do While Mid$(str, i, 1) >= "0" And Mid$(str, i, 1) <= "9" And i <= Len(str) temp_int = temp_int * 10 + Mid$(str, i, 1) i = i + 1 Loop If temp_int <= 255 Then addr(j) = temp_int j = j + 1 End If
Loop Until Mid$(str, i, 1) <> "." Or i > Len(str) Or temp_int > 255 If temp_int > 255 Then getname = "地址非法" Exit Function End If hostent_addr = gethostbyaddr(addr(0), j, 2) If hostent_addr = 0 Then getname = "此地址无法解析" Exit Function End If RtlMoveMemory host, hostent_addr, LenB(host) RtlMoveMemory hname(1), host.hname, 50 j = 51 For i = 1 To 50 If hname(i) = 0 Then j = i End If If i >= j Then hname(i) = 32 End If Next i getname = Trim$(StrConv(hname, vbUnicode)) End Function Private Sub Command2_Click() Dim name As String name = getname(Text2.Text) If name = "" Then name = "此地址没有域名" End If Text1.Text = name End Sub 以上代码保存于: SourceCode Explorer(源代码数据库) 复制时间: 2005-10-27 17:44:46 软件版本: 1.0.881 软件作者: Shawls E-Mail: [email protected] QQ: 9181729
Private Const WS_VERSION_MAJOR = WS_VERSION_REQD \ &H100 And &HFF&
Private Const WS_VERSION_MINOR = WS_VERSION_REQD And &HFF&
Private Const MIN_SOCKETS_REQD = 1
Private Const SOCKET_ERROR = -1
Private Const WSADescription_Len = 256
Private Const WSASYS_Status_Len = 128Private Type HOSTENT
hname As Long
hAliases As Long
hAddrType As Integer
hLength As Integer
hAddrList As Long
End TypePrivate Type WSADATA
wversion As Integer
wHighVersion As Integer
szDescription(0 To WSADescription_Len) As Byte
szSystemStatus(0 To WSASYS_Status_Len) As Byte
iMaxSockets As Integer
iMaxUdpDg As Integer
lpszVendorInfo As Long
End Type
Private Declare Function gethostbyaddr Lib "WSOCK32.DLL" (addr As Any, ByVal _
byteslen As Integer, addrtype As Integer) As Long
Private Declare Function WSAGetLastError Lib "WSOCK32.DLL" () As Long
Private Declare Function WSAStartup Lib "WSOCK32.DLL" (ByVal _
wVersionRequired&, lpWSAData As WSADATA) As Long
Private Declare Function WSACleanup Lib "WSOCK32.DLL" () As Long
Private Declare Function gethostbyname Lib "WSOCK32.DLL" (ByVal _
hostname$) As Long
Private Declare Sub RtlMoveMemory Lib "KERNEL32" (hpvDest As Any, _
ByVal hpvSource&, ByVal cbCopy&)Function hibyte(ByVal wParam As Integer) '获得整数的高位
hibyte = wParam \ &H100 And &HFF&
End FunctionFunction lobyte(ByVal wParam As Integer) '获得整数的低位
lobyte = wParam And &HFF&
End FunctionFunction SocketsInitialize()
Dim WSAD As WSADATA
Dim iReturn As Integer
Dim sLowByte As String, sHighByte As String, sMsg As String
iReturn = WSAStartup(WS_VERSION_REQD, WSAD)
If iReturn <> 0 Then
MsgBox "Winsock.dll 没有反应."
End
End If
If lobyte(WSAD.wversion) < WS_VERSION_MAJOR Or (lobyte(WSAD.wversion) = WS_VERSION_MAJOR And hibyte(WSAD.wversion) < WS_VERSION_MINOR) Then
sHighByte = Trim$(str$(hibyte(WSAD.wversion)))
sLowByte = Trim$(str$(lobyte(WSAD.wversion)))
sMsg = "Windows Sockets版本 " & sLowByte & "." & sHighByte
sMsg = sMsg & " 不被winsock.dll支持 "
MsgBox sMsg
End
End If
If WSAD.iMaxSockets < MIN_SOCKETS_REQD Then
sMsg = "这个系统需要的最少Sockets数为 "
sMsg = sMsg & Trim$(str$(MIN_SOCKETS_REQD))
MsgBox sMsg
End
End If
End FunctionSub SocketsCleanup()
Dim lReturn As Long
lReturn = WSACleanup()
If lReturn <> 0 Then
MsgBox "Socket错误 " & Trim$(str$(lReturn)) & " occurred in Cleanup "
End
End If
End Sub
Sub Form_Load()
'初始化Socket
SocketsInitialize
End SubPrivate Sub Form_Unload(Cancel As Integer)
'清除Socket
SocketsCleanup
End Sub
Private Function getip(name As String) As String
Dim hostent_addr As Long
Dim host As HOSTENT
Dim hostip_addr As Long
Dim temp_ip_address() As Byte
Dim i As Integer
Dim ip_address As String
hostent_addr = gethostbyname(name)
If hostent_addr = 0 Then
getip = "" '主机名不能被解释
Exit Function
End If
RtlMoveMemory host, hostent_addr, LenB(host)
RtlMoveMemory hostip_addr, host.hAddrList, 4
ReDim temp_ip_address(1 To host.hLength)
RtlMoveMemory temp_ip_address(1), hostip_addr, host.hLength
For i = 1 To host.hLength
ip_address = ip_address & temp_ip_address(i) & "."
Next
ip_address = Mid$(ip_address, 1, Len(ip_address) - 1)
getip = ip_addressEnd FunctionPrivate Sub Command1_click()
Dim str As String
str = getip(Text1.Text)
If str = "" Then
Text2.Text = "主机名不能被解释"
Else
Text2.Text = str
End If
End Sub
Private Function getname(addrstr As String) As String
Dim hostent_addr As Long
Dim host As HOSTENT
Dim addr(0 To 50) As Byte
Dim addrs As String
Dim hname(1 To 50) As Byte
Dim str As String
Dim i As Integer, j As Integer
Dim temp_int As Integer
Dim byt As Byte
str = Trim$(addrstr)
i = 0
j = 0
Do
temp_int = 0
i = i + 1
Do While Mid$(str, i, 1) >= "0" And Mid$(str, i, 1) <= "9" And i <= Len(str)
temp_int = temp_int * 10 + Mid$(str, i, 1)
i = i + 1
Loop
If temp_int <= 255 Then
addr(j) = temp_int
j = j + 1
End If
Loop Until Mid$(str, i, 1) <> "." Or i > Len(str) Or temp_int > 255
If temp_int > 255 Then
getname = "地址非法"
Exit Function
End If
hostent_addr = gethostbyaddr(addr(0), j, 2)
If hostent_addr = 0 Then
getname = "此地址无法解析"
Exit Function
End If
RtlMoveMemory host, hostent_addr, LenB(host)
RtlMoveMemory hname(1), host.hname, 50
j = 51
For i = 1 To 50
If hname(i) = 0 Then
j = i
End If
If i >= j Then
hname(i) = 32
End If
Next i
getname = Trim$(StrConv(hname, vbUnicode))
End Function
Private Sub Command2_Click()
Dim name As String
name = getname(Text2.Text)
If name = "" Then
name = "此地址没有域名"
End If
Text1.Text = name
End Sub
以上代码保存于: SourceCode Explorer(源代码数据库)
复制时间: 2005-10-27 17:44:46
软件版本: 1.0.881
软件作者: Shawls
E-Mail: [email protected]
QQ: 9181729