Method uidl

app/src/main/java/com/sun/mail/pop3/Protocol.java:1054–1063

Return the UIDL string for the message.

(int msg)

     * Return the UIDL string for the message.
     */
    synchronized String uidl(int msg) throws IOException {
	Response r = simpleCommand("UIDL " + msg);
	if (!r.ok)
	    return null;
	int i = r.data.indexOf(' ');
	if (i > 0)
	    return r.data.substring(i + 1);
	else
	    return null;
    }

    /**
     * Return the UIDL strings for all messages.