Tcl
Tcl
Send BinData Contents over a Socket
See more Socket/SSL/TLS Examples
Demonstrates Socket.SendBd, which sends bytes from a BinData beginning at an offset. A numBytes of 0 sends from the offset through the end of the data.
Background. The BinData receive methods accumulate raw bytes in a BinData object. A single receive returns only what is currently available, whereas the counted receive waits for an exact number of bytes.
Chilkat Tcl Downloads
load ./chilkat.dll
set success 0
set socket [new_CkSocket]
# Connect to the server using TLS.
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
}
# Place some bytes into a BinData to be sent.
set bd [new_CkBinData]
CkBinData_AppendString $bd "message payload" "utf-8"
# Send bytes from the BinData starting at the given offset. A numBytes of 0 sends from the offset
# through the end of the data.
set success [CkSocket_SendBd $socket $bd 0 0]
if {$success == 0} then {
puts [CkSocket_lastErrorText $socket]
delete_CkSocket $socket
delete_CkBinData $bd
exit
}
puts "Sent [CkBinData_get_NumBytes $bd] bytes."
delete_CkSocket $socket
delete_CkBinData $bd