Tcl
Tcl
Receive Text from a Socket into a StringBuilder
See more Socket/SSL/TLS Examples
Demonstrates Socket.ReceiveSb, which receives text, decodes it using StringCharset, and appends it to a StringBuilder.
Background. Text send and receive operations encode and decode bytes using the
StringCharset property. For plain ASCII or UTF-8 protocols, setting StringCharset to utf-8 is a safe default.Chilkat Tcl Downloads
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 text and append it to a StringBuilder, decoding using StringCharset.
set sb [new_CkStringBuilder]
set success [CkSocket_ReceiveSb $socket $sb]
if {$success == 0} then {
puts [CkSocket_lastErrorText $socket]
delete_CkSocket $socket
delete_CkStringBuilder $sb
exit
}
set responseText [CkStringBuilder_getAsString $sb]
if {[CkStringBuilder_get_LastMethodSuccess $sb] == 0} then {
puts [CkStringBuilder_lastErrorText $sb]
delete_CkSocket $socket
delete_CkStringBuilder $sb
exit
}
puts "$responseText"
delete_CkSocket $socket
delete_CkStringBuilder $sb