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(PowerShell) Socket Receive String Until Specific Byte Value is ReceivedDemonstrates the Chilkat Socket ReceiveStringUntilByte method.
Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll" # This example requires the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. $sock = New-Object Chilkat.Socket # -------------------------------------------------------------------- # This example uses the public TCP echo service at https://tcpbin.com/ # -------------------------------------------------------------------- $useTls = $false $port = 4242 $maxWaitMs = 5000 $success = $sock.Connect("tcpbin.com",$port,$useTls,$maxWaitMs) if ($success -eq $false) { $($sock.LastErrorText) exit } # Wait a max of 2 seconds for a response.. $sock.MaxReadIdleMs = 2000 # Send some strings, each terminated by a 0 byte. $sock.SendString("This is the 1st string") $sock.SendByte(0) $sock.SendString("This is string number 2") $sock.SendByte(0) # The tcpbin.com echo server only echoes after receiving an LF (linefeed char) $sock.SendByte(10) # Now let's receive what is echoed back.... # Receive each string and the NULL byte. # The call to ReceiveStringUntilByte will receive incoming data until the lookForByte is encountered. # The lookForByte is receive and discarded (it is not returned in the string) $lookForByte = 0 $s1 = $sock.ReceiveStringUntilByte($lookForByte) if ($sock.LastMethodSuccess -eq $false) { $($sock.LastErrorText) exit } $($s1) $s2 = $sock.ReceiveStringUntilByte($lookForByte) if ($sock.LastMethodSuccess -eq $false) { $($sock.LastErrorText) exit } $($s2) # The echo server will also echo back the final LF $sock.ReceiveByte($true) $maxWaitMs = 100 $sock.Close(100) # Output: # This is the 1st string # This is string number 2 |
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