Function transmission_sys::tr_getDefaultConfigDir

pub unsafe extern "C" fn tr_getDefaultConfigDir(
    appname: *const c_char
) -> *const c_char

@brief returns Transmission's default configuration file directory.

The default configuration directory is determined this way: -# If the TRANSMISSION_HOME environment variable is set, its value is used. -# On Darwin, "${HOME}/Library/Application Support/${appname}" is used. -# On Windows, "${CSIDL_APPDATA}/${appname}" is used. -# If XDG_CONFIG_HOME is set, "${XDG_CONFIG_HOME}/${appname}" is used. -# ${HOME}/.config/${appname}" is used as a last resort.