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root/i-scream/experimental/host/vb_net_test/nettest.frm
Revision: 1.7
Committed: Fri Feb 23 10:58:00 2001 UTC (23 years, 2 months ago) by pjm2
Branch: MAIN
Changes since 1.6: +31 -4 lines
Log Message:
TCP and UDP intervals are now dealt with.

File Contents

# User Rev Content
1 pjm2 1.1 VERSION 5.00
2     Object = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}#1.0#0"; "MSWINSCK.OCX"
3     Begin VB.Form Form1
4     BorderStyle = 3 'Fixed Dialog
5     Caption = "TCP/UDP Test program"
6     ClientHeight = 5655
7     ClientLeft = 45
8     ClientTop = 330
9     ClientWidth = 5670
10     LinkTopic = "Form1"
11     MaxButton = 0 'False
12     MinButton = 0 'False
13     ScaleHeight = 5655
14     ScaleWidth = 5670
15     ShowInTaskbar = 0 'False
16     StartUpPosition = 3 'Windows Default
17 pjm2 1.7 Begin VB.Timer TCPTimer
18     Left = 3360
19     Top = 120
20     End
21     Begin VB.Timer UDPTimer
22     Left = 3840
23     Top = 120
24     End
25 pjm2 1.1 Begin VB.CommandButton Command3
26     Caption = "TCP to Filter"
27     Height = 375
28     Left = 3720
29 pjm2 1.6 TabIndex = 3
30 pjm2 1.1 Top = 2520
31     Width = 1575
32     End
33     Begin VB.TextBox Text4
34 pjm2 1.6 Height = 1575
35 pjm2 1.1 Left = 240
36     MultiLine = -1 'True
37     ScrollBars = 2 'Vertical
38 pjm2 1.6 TabIndex = 2
39 pjm2 1.1 Text = "nettest.frx":0000
40     Top = 3000
41     Width = 5055
42     End
43     Begin VB.CommandButton Command2
44     Caption = "TCP to FilterManager"
45     Height = 375
46     Left = 3360
47 pjm2 1.6 TabIndex = 1
48 pjm2 1.1 Top = 2040
49     Width = 1935
50     End
51 pjm2 1.5 Begin MSWinsockLib.Winsock TCPSock
52 pjm2 1.1 Left = 4920
53     Top = 120
54     _ExtentX = 741
55     _ExtentY = 741
56     _Version = 393216
57     End
58     Begin VB.CommandButton Command1
59     Caption = "Send UDP"
60     Height = 375
61     Left = 4320
62 pjm2 1.6 TabIndex = 0
63 pjm2 1.1 Top = 1560
64     Width = 975
65     End
66 pjm2 1.5 Begin MSWinsockLib.Winsock UDPSock
67 pjm2 1.1 Left = 4320
68     Top = 120
69     _ExtentX = 741
70     _ExtentY = 741
71     _Version = 393216
72     Protocol = 1
73     End
74 pjm2 1.7 Begin VB.Label Label2
75     Caption = "Label2"
76     Height = 255
77     Left = 120
78     TabIndex = 6
79     Top = 600
80     Width = 3375
81     End
82     Begin VB.Label Label1
83     Caption = "Label1"
84     Height = 255
85     Left = 120
86     TabIndex = 5
87     Top = 240
88     Width = 3375
89     End
90 pjm2 1.6 Begin VB.Label Status
91     Caption = "Status:"
92 pjm2 1.1 Height = 255
93 pjm2 1.6 Left = 120
94     TabIndex = 4
95     Top = 5280
96     Width = 5415
97 pjm2 1.1 End
98     End
99     Attribute VB_Name = "Form1"
100     Attribute VB_GlobalNameSpace = False
101     Attribute VB_Creatable = False
102     Attribute VB_PredeclaredId = True
103     Attribute VB_Exposed = False
104 pjm2 1.4 Private Declare Function GetPrivateProfileString Lib "kernel32" Alias "GetPrivateProfileStringA" (ByVal lpApplicationName As String, ByVal lpKeyName As String, ByVal lpDefault As String, ByVal lpReturnedString As String, ByVal nSize As Long, ByVal lpFileName As String) As Long
105     Private Declare Function GetPrivateProfileInt Lib "kernel32" Alias "GetPrivateProfileIntA" (ByVal lpApplicationName As String, ByVal lpKeyName As String, ByVal nDefault As Long, ByVal lpFileName As String) As Long
106    
107     Dim filterManagerHostname As String
108     Dim filterManagerTCPPort As Integer
109    
110 pjm2 1.2 Dim filterHostname As String
111 pjm2 1.3 Dim filterTCPPort As Integer
112     Dim filterUDPPort As Integer
113     Dim fileList As String
114     Dim lastModified As String
115 pjm2 1.2
116 pjm2 1.7 Dim UDPUpdateTime As Integer
117     Dim TCPUpdateTime As Integer
118    
119 pjm2 1.2 Dim protocolVersion As String
120     Dim connected As Boolean
121 pjm2 1.1 Dim responseNumber As Integer
122    
123    
124     Private Sub Command1_Click()
125    
126 pjm2 1.5 ' build the contents of the XML packet.
127 pjm2 1.4 xml = "<packet></packet>"
128    
129 pjm2 1.2 ' Use the first winsock control to send a UDP packet.
130 pjm2 1.5 UDPSock.RemoteHost = filterHostname
131     UDPSock.RemotePort = filterUDPPort
132     UDPSock.SendData xml
133 pjm2 1.6 Status.Caption = "i-scream Winhost " & protocolVersion & " - UDP packet sent."
134 pjm2 1.1
135     End Sub
136    
137     Private Sub Command2_Click()
138    
139 pjm2 1.3 ' establish a TCP connection to a filtermanager
140 pjm2 1.5 TCPSock.Close
141     TCPSock.Connect filterManagerHostname, filterManagerTCPPort
142 pjm2 1.1
143     End Sub
144    
145     Private Sub Command3_Click()
146 pjm2 1.3 ' establish a TCP connection to a filter
147 pjm2 1.5 TCPSock.Close
148     TCPSock.Connect filterHostname, filterTCPPort
149 pjm2 1.1 End Sub
150    
151 pjm2 1.2 Private Sub Form_Load()
152     protocolVersion = "1.1"
153 pjm2 1.4
154 pjm2 1.6 Status.Caption = "i-scream Winhost " & protocolVersion
155    
156 pjm2 1.4 ''''TEMP
157     filterManagerHostname = "killigrew.ukc.ac.uk"
158     filterManagerTCPPort = 4567
159     Exit Sub
160     ''' ENDTEMP
161    
162     On Error GoTo iniError
163     Dim buf As String * 256
164     Dim length As Long
165     length = GetPrivateProfileString("i-scream Winhost", "FilterManager", "<no value>", buf, Len(buf), App.Path & "winhost.ini")
166     filterManagerHostname = Left$(buf, length)
167     length = GetPrivateProfileString("i-scream Winhost", "FilterManagerPort", "<no value>", buf, Len(buf), App.Path & "winhost.ini")
168     filterManagerTCPPort = Left$(buf, length)
169    
170 pjm2 1.6 Status.Caption = "i-scream Winhost " & protocolVersion & " connecting to Filter Manager"
171    
172 pjm2 1.4 Exit Sub
173    
174     iniError:
175     x = MsgBox("The i-scream Winhost could not read the correct settings from the winhost.ini file. Please correct these and try again.", 48, "Configuration not found")
176     End
177    
178     End Sub
179    
180 pjm2 1.5 Private Sub TCPSock_Connect()
181 pjm2 1.6
182     responseNumber = 0
183 pjm2 1.1
184 pjm2 1.3 ' Send something as soon as we connect to the server.
185     If connected = False Then
186     ' contact the FilterManager
187 pjm2 1.5 TCPSock.SendData "STARTCONFIG" & vbCrLf
188 pjm2 1.3 Else
189     ' Contact the Filter
190 pjm2 1.5 TCPSock.SendData "HEARTBEAT" & vbCrLf
191 pjm2 1.3 End If
192 pjm2 1.1
193     End Sub
194    
195 pjm2 1.5 Private Sub TCPSock_DataArrival(ByVal bytesTotal As Long)
196 pjm2 1.1
197     responseNumber = responseNumber + 1
198    
199     ' Get the line from the server.
200 pjm2 1.5 TCPSock.GetData response, vbString, bytesTotal
201 pjm2 1.1
202     ' Remove linefeeds and returns from the line.
203     response = Replace(response, Chr(13), "")
204     response = Replace(response, Chr(10), "")
205     Text4.Text = Text4.Text & vbCrLf & response
206    
207 pjm2 1.2 If connected = False Then
208     ' Perform TCP configuration (1.1)
209     On Error GoTo configError
210     Select Case responseNumber
211     Case 1:
212     If Not response = "OK" Then GoTo configError
213 pjm2 1.5 TCPSock.SendData "LASTMODIFIED" & vbCrLf
214 pjm2 1.2 Case 2:
215     If response = "ERROR" Then GoTo configError
216 pjm2 1.3 lastModified = response
217 pjm2 1.5 TCPSock.SendData "FILELIST" & vbCrLf
218 pjm2 1.2 Case 3:
219     If response = "ERROR" Then GoTo configError
220 pjm2 1.3 fileList = response
221 pjm2 1.5 TCPSock.SendData "UDPUpdateTime" & vbCrLf
222 pjm2 1.2 Case 4:
223     If response = "ERROR" Then GoTo configError
224 pjm2 1.7 UDPUpdateTime = response
225 pjm2 1.5 TCPSock.SendData "TCPUpdateTime" & vbCrLf
226 pjm2 1.2 Case 5:
227     If response = "ERROR" Then GoTo configError
228 pjm2 1.7 TCPUpdateTime = response
229 pjm2 1.5 TCPSock.SendData "ENDCONFIG" & vbCrLf
230 pjm2 1.2 Case 6:
231     If Not response = "OK" Then GoTo configError
232 pjm2 1.5 TCPSock.SendData "FILTER" & vbCrLf
233 pjm2 1.2 Case 7:
234     'we got a filter list here.
235     readTo = 0
236     ' get hostname
237     readTo = InStr(1, response, ";", vbBinaryCompare)
238     filterHostname = Mid(response, 1, readTo - 1)
239     response = Mid(response, readTo + 1, Len(response))
240     ' get UDP Port number
241     readTo = InStr(1, response, ";")
242     filterUDPPort = Mid(response, 1, readTo - 1)
243     response = Mid(response, readTo + 1, Len(response))
244     ' get TCP Port number
245     filterTCPPort = response
246 pjm2 1.5 TCPSock.SendData "END" & vbCrLf
247 pjm2 1.2 Case 8:
248     If Not response = "OK" Then GoTo configError
249     connected = True
250     responseNumber = 0
251 pjm2 1.5 TCPSock.Close
252 pjm2 1.2 Text4.Text = Text4.Text & vbCrLf & " <closed>"
253 pjm2 1.7 Label1.Caption = "TCP hearbeat interval: " & UDPUpdateTime
254     Label2.Caption = "UDP packet interval: " & TCPUpdateTime
255 pjm2 1.6 Status.Caption = "i-scream Winhost " & protocolVersion & " - got config okay"
256 pjm2 1.2 End Select
257     Else
258     ' Perform a heartbeat (1.1)
259     On Error GoTo heartbeatError
260     Select Case responseNumber
261     Case 1:
262 pjm2 1.3 If Not response = "OK" Then GoTo heartbeatError
263 pjm2 1.5 TCPSock.SendData "CONFIG" & vbCrLf
264 pjm2 1.2 Case 2:
265 pjm2 1.3 If Not response = "OK" Then GoTo heartbeatError
266 pjm2 1.5 TCPSock.SendData fileList & vbCrLf
267 pjm2 1.2 Case 3:
268 pjm2 1.3 If Not response = "OK" Then GoTo heartbeatError
269 pjm2 1.5 TCPSock.SendData lastModified & vbCrLf
270 pjm2 1.2 Case 4:
271 pjm2 1.3 If Not response = "OK" Then GoTo heartbeatError
272 pjm2 1.5 TCPSock.SendData "ENDHEARTBEAT" & vbCrLf
273 pjm2 1.2 Case 5:
274 pjm2 1.3 If Not response = "OK" Then GoTo heartbeatError
275 pjm2 1.5 TCPSock.Close
276 pjm2 1.6 Status.Caption = "i-scream Winhost " & protocolVersion & " - heartbeat sent okay."
277 pjm2 1.2 End Select
278    
279     End If
280    
281    
282     Exit Sub
283    
284     configError:
285 pjm2 1.6 Status.Caption = "i-scream Winhost " & protocolVersion & " - FAILED to get configuration"
286 pjm2 1.2 heartbeatError:
287 pjm2 1.6 Status.Caption = "i-scream Winhost " & protocolVersion & " - Heatbeat FAILED"
288 pjm2 1.1 End Sub
289 pjm2 1.5