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VERSION 5.00 |
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Object = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}#1.0#0"; "MSWINSCK.OCX" |
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Begin VB.Form Form1 |
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BorderStyle = 3 'Fixed Dialog |
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Caption = "TCP/UDP Test program" |
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ClientHeight = 5655 |
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ClientLeft = 45 |
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ClientTop = 330 |
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ClientWidth = 5670 |
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LinkTopic = "Form1" |
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MaxButton = 0 'False |
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MinButton = 0 'False |
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ScaleHeight = 5655 |
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ScaleWidth = 5670 |
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ShowInTaskbar = 0 'False |
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StartUpPosition = 3 'Windows Default |
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Begin VB.CommandButton Command3 |
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Caption = "TCP to Filter" |
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Height = 375 |
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Left = 3720 |
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TabIndex = 9 |
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Top = 2520 |
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Width = 1575 |
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End |
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Begin VB.TextBox Text4 |
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Height = 2535 |
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Left = 240 |
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MultiLine = -1 'True |
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ScrollBars = 2 'Vertical |
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TabIndex = 8 |
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Text = "nettest.frx":0000 |
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Top = 3000 |
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Width = 5055 |
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End |
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Begin VB.CommandButton Command2 |
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Caption = "TCP to FilterManager" |
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Height = 375 |
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Left = 3360 |
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TabIndex = 7 |
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Top = 2040 |
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Width = 1935 |
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End |
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Begin MSWinsockLib.Winsock Winsock2 |
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Left = 4920 |
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Top = 120 |
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_ExtentX = 741 |
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_ExtentY = 741 |
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_Version = 393216 |
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End |
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Begin VB.TextBox Text3 |
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Height = 285 |
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Left = 1680 |
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TabIndex = 5 |
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Text = "killigrew.ukc.ac.uk" |
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Top = 1560 |
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Width = 2535 |
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End |
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Begin VB.TextBox Text2 |
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Height = 285 |
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Left = 1680 |
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TabIndex = 3 |
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Text = "4567" |
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Top = 1920 |
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Width = 855 |
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End |
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Begin VB.CommandButton Command1 |
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Caption = "Send UDP" |
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Height = 375 |
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Left = 4320 |
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TabIndex = 2 |
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Top = 1560 |
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Width = 975 |
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End |
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Begin VB.TextBox Text1 |
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Height = 855 |
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Left = 360 |
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TabIndex = 0 |
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Text = "<packet></packet>" |
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Top = 600 |
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Width = 4935 |
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End |
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Begin MSWinsockLib.Winsock Winsock1 |
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Left = 4320 |
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Top = 120 |
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_ExtentX = 741 |
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_ExtentY = 741 |
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_Version = 393216 |
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Protocol = 1 |
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End |
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Begin VB.Label Label3 |
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Alignment = 1 'Right Justify |
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Caption = "Destination:" |
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Height = 255 |
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Left = 360 |
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TabIndex = 6 |
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Top = 1560 |
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Width = 1215 |
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End |
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Begin VB.Label Label2 |
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Alignment = 1 'Right Justify |
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Caption = "Port:" |
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Height = 255 |
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Left = 360 |
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TabIndex = 4 |
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Top = 1920 |
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Width = 1215 |
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End |
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Begin VB.Label Label1 |
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Caption = "Packet contents" |
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Height = 255 |
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Left = 360 |
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TabIndex = 1 |
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Top = 360 |
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Width = 2895 |
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End |
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End |
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Attribute VB_Name = "Form1" |
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Attribute VB_GlobalNameSpace = False |
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Attribute VB_Creatable = False |
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Attribute VB_PredeclaredId = True |
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Attribute VB_Exposed = False |
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Dim filterHostname As String |
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Dim filterTCPPort As Integer |
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Dim filterUDPPort As Integer |
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Dim fileList As String |
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Dim lastModified As String |
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|
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Dim protocolVersion As String |
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Dim connected As Boolean |
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Dim responseNumber As Integer |
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|
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|
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Private Sub Command1_Click() |
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|
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' Use the first winsock control to send a UDP packet. |
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Winsock1.RemoteHost = Text3.Text |
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Winsock1.RemotePort = Text2.Text |
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Winsock1.SendData Text1.Text |
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|
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End Sub |
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|
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Private Sub Command2_Click() |
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|
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' establish a TCP connection to a filtermanager |
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Winsock2.Close |
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Winsock2.Connect Text3.Text, Text2.Text |
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|
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End Sub |
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|
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Private Sub Command3_Click() |
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' establish a TCP connection to a filter |
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Winsock2.Close |
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Winsock2.Connect filterHostname, filterTCPPort |
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End Sub |
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|
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Private Sub Form_Load() |
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protocolVersion = "1.1" |
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End Sub |
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|
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Private Sub Winsock2_Connect() |
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|
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responseNumber = 0 |
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|
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' Send something as soon as we connect to the server. |
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If connected = False Then |
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' contact the FilterManager |
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Winsock2.SendData "STARTCONFIG" & vbCrLf |
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Else |
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' Contact the Filter |
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Winsock2.SendData "HEARTBEAT" & vbCrLf |
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End If |
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|
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End Sub |
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|
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Private Sub Winsock2_DataArrival(ByVal bytesTotal As Long) |
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|
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responseNumber = responseNumber + 1 |
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|
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' Get the line from the server. |
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Winsock2.GetData response, vbString, bytesTotal |
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|
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' Remove linefeeds and returns from the line. |
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response = Replace(response, Chr(13), "") |
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response = Replace(response, Chr(10), "") |
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Text4.Text = Text4.Text & vbCrLf & response |
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|
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If connected = False Then |
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' Perform TCP configuration (1.1) |
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On Error GoTo configError |
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Select Case responseNumber |
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Case 1: |
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If Not response = "OK" Then GoTo configError |
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Winsock2.SendData "LASTMODIFIED" & vbCrLf |
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Case 2: |
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If response = "ERROR" Then GoTo configError |
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lastModified = response |
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Winsock2.SendData "FILELIST" & vbCrLf |
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Case 3: |
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If response = "ERROR" Then GoTo configError |
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fileList = response |
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Winsock2.SendData "UDPUpdateTime" & vbCrLf |
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Case 4: |
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If response = "ERROR" Then GoTo configError |
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Winsock2.SendData "TCPUpdateTime" & vbCrLf |
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Case 5: |
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If response = "ERROR" Then GoTo configError |
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Winsock2.SendData "ENDCONFIG" & vbCrLf |
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Case 6: |
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If Not response = "OK" Then GoTo configError |
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Winsock2.SendData "FILTER" & vbCrLf |
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Case 7: |
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'we got a filter list here. |
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readTo = 0 |
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' get hostname |
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readTo = InStr(1, response, ";", vbBinaryCompare) |
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filterHostname = Mid(response, 1, readTo - 1) |
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response = Mid(response, readTo + 1, Len(response)) |
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' get UDP Port number |
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readTo = InStr(1, response, ";") |
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filterUDPPort = Mid(response, 1, readTo - 1) |
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response = Mid(response, readTo + 1, Len(response)) |
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' get TCP Port number |
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filterTCPPort = response |
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Winsock2.SendData "END" & vbCrLf |
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Case 8: |
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If Not response = "OK" Then GoTo configError |
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connected = True |
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responseNumber = 0 |
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Winsock2.Close |
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Text4.Text = Text4.Text & vbCrLf & " <closed>" |
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x = MsgBox("got config okay") |
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End Select |
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Else |
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' Perform a heartbeat (1.1) |
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On Error GoTo heartbeatError |
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Select Case responseNumber |
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Case 1: |
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If Not response = "OK" Then GoTo heartbeatError |
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Winsock2.SendData "CONFIG" & vbCrLf |
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Case 2: |
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If Not response = "OK" Then GoTo heartbeatError |
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Winsock2.SendData fileList & vbCrLf |
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Case 3: |
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If Not response = "OK" Then GoTo heartbeatError |
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Winsock2.SendData lastModified & vbCrLf |
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Case 4: |
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If Not response = "OK" Then GoTo heartbeatError |
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Winsock2.SendData "ENDHEARTBEAT" & vbCrLf |
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Case 5: |
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If Not response = "OK" Then GoTo heartbeatError |
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Winsock2.Close |
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x = MsgBox("heartbeat sent okay.") |
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End Select |
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|
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End If |
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|
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|
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Exit Sub |
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|
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configError: |
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x = MsgBox("error doing configuration") |
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heartbeatError: |
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|
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End Sub |
