Receive Text up to a Match into a StringBuilder

See more Socket/SSL/TLS Examples

Demonstrates Socket.ReceiveUntilMatchSb, which receives bytes until an exact byte sequence is found and appends the received text to a StringBuilder.

load ./chilkat.dll

set success 0

set socket [new_CkSocket]

#  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.
set bTls 1
set maxWaitMs 5000
set success [CkSocket_Connect $socket "example.com" 5000 $bTls $maxWaitMs]
if {$success == 0} then {
    puts [CkSocket_lastErrorText $socket]
    delete_CkSocket $socket
    exit
}

#  StringCharset controls the character encoding used when sending and receiving text.
CkSocket_put_StringCharset $socket "utf-8"
#  Send a request using a simple application-defined text protocol in which each message ends with a
#  CRLF.
set command "STATUS\r\n"
set success [CkSocket_SendString $socket $command]
if {$success == 0} then {
    puts [CkSocket_lastErrorText $socket]
    delete_CkSocket $socket
    exit
}

#  Receive bytes until an exact byte sequence is found, appending the received text to a
#  StringBuilder.  The match may span multiple underlying network reads.
set sb [new_CkStringBuilder]

set success [CkSocket_ReceiveUntilMatchSb $socket "<EOM>" $sb]
if {$success == 0} then {
    puts [CkSocket_lastErrorText $socket]
    delete_CkSocket $socket
    delete_CkStringBuilder $sb
    exit
}

set response [CkStringBuilder_getAsString $sb]
if {[CkStringBuilder_get_LastMethodSuccess $sb] == 0} then {
    puts [CkStringBuilder_lastErrorText $sb]
    delete_CkSocket $socket
    delete_CkStringBuilder $sb
    exit
}

puts "$response"

delete_CkSocket $socket
delete_CkStringBuilder $sb