I was looking to specifying a TLS version (basically a minimum TLS version in newer versions of curl) with a max TLS version (-tls-max option in curl). tclcurl supports using 1 or the other inside of the -sslversion option. It is not possible to set both at once with this option. This option sets CURLOPT_SSLVERSION. Unfortunately, libcurl does not support setting the max TLS version in its own option, so it isn't easy to just add another tclcurl option to set this.
Curl allows us to set both at the same time with a bitwise or operation. I have tested some local changes with adding an option -sslversionandmax to take a 2 element list. I am submitting a pull request.
bovine
commented
9 months ago
I was looking to specifying a TLS version (basically a minimum TLS version in newer versions of curl) with a max TLS version (-tls-max option in curl). tclcurl supports using 1 or the other inside of the -sslversion option. It is not possible to set both at once with this option. This option sets CURLOPT_SSLVERSION. Unfortunately, libcurl does not support setting the max TLS version in its own option, so it isn't easy to just add another tclcurl option to set this.
https://curl.se/libcurl/c/CURLOPT_SSLVERSION.html
Curl allows us to set both at the same time with a bitwise or operation. I have tested some local changes with adding an option -sslversionandmax to take a 2 element list. I am submitting a pull request.