PowerBuilder
PowerBuilder
Receive Text up to a Matching Sequence
See more Socket/SSL/TLS Examples
Demonstrates Socket.ReceiveUntilMatch, which receives bytes until an exact byte sequence is found. The match string is encoded using StringCharset and compared byte-for-byte.
Background. The comparison is case-sensitive with no Unicode normalization. This is useful for reading a message that ends with an application-defined marker delimiting the end of a response.
Chilkat PowerBuilder Downloads
integer li_rc
integer li_Success
oleobject loo_Socket
integer li_BTls
integer li_MaxWaitMs
string ls_Command
string ls_Response
li_Success = 0
loo_Socket = create oleobject
li_rc = loo_Socket.ConnectToNewObject("Chilkat.Socket")
if li_rc < 0 then
destroy loo_Socket
MessageBox("Error","Connecting to COM object failed")
return
end if
// Connect to the server using TLS. The 3rd argument enables the TLS handshake after the TCP
// connection succeeds; the 4th is the maximum time to wait, in milliseconds.
li_BTls = 1
li_MaxWaitMs = 5000
li_Success = loo_Socket.Connect("example.com",5000,li_BTls,li_MaxWaitMs)
if li_Success = 0 then
Write-Debug loo_Socket.LastErrorText
destroy loo_Socket
return
end if
// StringCharset controls the character encoding used when sending and receiving text.
loo_Socket.StringCharset = "utf-8"
// Send a request using a simple application-defined text protocol in which each message ends with a
// CRLF.
ls_Command = "STATUS~r~n"
li_Success = loo_Socket.SendString(ls_Command)
if li_Success = 0 then
Write-Debug loo_Socket.LastErrorText
destroy loo_Socket
return
end if
// Receive bytes until an exact byte sequence is found. The match string is encoded using
// StringCharset and compared byte-for-byte. Here the server marks the end of its response with an
// application-defined marker.
ls_Response = loo_Socket.ReceiveUntilMatch("<EOM>")
if loo_Socket.LastMethodSuccess = 0 then
Write-Debug loo_Socket.LastErrorText
destroy loo_Socket
return
end if
Write-Debug ls_Response
destroy loo_Socket