Function debugfs_quote_argument

crates/openshell-driver-vm/src/rootfs.rs:609–626

(argument: &str)

}

fn debugfs_quote_argument(argument: &str) -> Option<String> {
    if argument.is_empty() {
        return None;
    }

    let mut quoted = String::with_capacity(argument.len() + 2);
    quoted.push('"');
    for ch in argument.chars() {
        match ch {
            '\0' | '\n' | '\r' => return None,
            '\\' => quoted.push_str("\\\\"),
            '"' => quoted.push_str("\\\""),
            _ => quoted.push(ch),
        }
    }
    quoted.push('"');
    Some(quoted)
}

fn sandbox_guest_user_ids(rootfs: &Path) -> Result<Option<(u32, u32)>, String> {
    let passwd_path = rootfs.join("etc/passwd");