Function error_sqlstate

tests/client_compat.rs:1283–1301

(message: &RawBackendMessage)

}

fn error_sqlstate(message: &RawBackendMessage) -> Option<String> {
    let mut cursor = 0usize;
    while cursor < message.body.len() {
        let field = message.body[cursor];
        cursor += 1;
        if field == 0 {
            break;
        }
        let end = message.body[cursor..]
            .iter()
            .position(|byte| *byte == 0)
            .map(|offset| cursor + offset)?;
        if field == b'C' {
            return Some(String::from_utf8_lossy(&message.body[cursor..end]).into_owned());
        }
        cursor = end + 1;
    }
    None
}