Function validate_field

crates/openshell-core/src/forward.rs:893–912

(
    name: &'static str,
    value: &str,
    max_len: usize,
    byte_ok: fn(u8) -> bool,
)

}

fn validate_field(
    name: &'static str,
    value: &str,
    max_len: usize,
    byte_ok: fn(u8) -> bool,
) -> std::result::Result<(), SshSessionResponseError> {
    if value.is_empty() {
        return Err(SshSessionResponseError::Empty { field: name });
    }
    if value.len() > max_len {
        return Err(SshSessionResponseError::TooLong {
            field: name,
            max: max_len,
        });
    }
    if !value.bytes().all(byte_ok) {
        return Err(SshSessionResponseError::InvalidChars { field: name });
    }
    Ok(())
}

/// Build notes string for a sandbox based on active forwards.
///