Re:Facil.io: A micro-framework for C web applications
by loeg on Saturday January 26, 2019 @12:33PM
(#19007272)
Probably they use length-prefixed strings internally (which is probably a requirement for taking a C web framework seriously), but allow C nul-terminated strings at the API boundary for convenience of use.
Though I guess it would be good to have nicer wrappers for the common case where you do only send text.