What does -c, --config <FILE> do?

[RorinL]

I executed "./hbbs -h" and saw "-c"
Is this started by using a configuration file? How do I use this? I searched but can't seem to find anything about the function of this command?

In addition to specifying the ports of hbbr and hbbs, can I specify ports 21118, 21119, 21115 as other ports?

[moeshin]

rustdesk-server/src/common.rs

Lines 71 to 79 in 4c74586

	if let Some(config) = matches.value_of("config") {
	if let Ok(v) = Ini::load_from_file(config) {
	if let Some(section) = v.section(None::<String>) {
	section
	.iter()
	.for_each(|(k, v)| std::env::set_var(arg_name(k), v));
	}
	}
	}

Config file is INI. Finally, it will be set to env var.
The same is true for command line parameters.