Function is_file_descriptor

src/program/infer/static_infer.rs:487–502

(arg: &Node, visitor: &Visitor)

    }

    pub fn is_file_descriptor(arg: &Node, visitor: &Visitor) -> bool {
        let arg = strip_prefix(arg);
        let fd_producer = ["open", "fileno", "fuzz_fileno"];
        if let Clang::CallExpr(ce) = &arg.kind {
            let name = ce.get_name_as_string(arg);
            if fd_producer.contains(&name.as_str()) {
                return true;
            }
        }
        if let Clang::DeclRefExpr(dre) = &arg.kind {
            if let Some(init) = dre.get_var_init(visitor) {
                return is_file_descriptor(init, visitor);
            }
        }
        false
    }

    pub fn is_format_string(arg: &Node, visitor: &Visitor) -> bool {
        let arg = strip_prefix(arg);