netwerk/dns/nsIDNSRecord.idl
author Ehsan Akhgari <ehsan@mozilla.com>
Sat, 05 Jun 2010 21:23:26 -0400
changeset 43173 ac1ed3f6b2e71637e562866867c9ac571d2cb283
parent 43144 2d90590dabe63ad9d6323376e6a1138add81e1cb
parent 43113 d8dc49d5bd609668b3c4fadd6c1df12d5da20547
child 73152 a1487dacb9e783ffb3072c1f0a8910007951aedd
permissions -rw-r--r--
Merge resolving the bad rename changeset landed as part of bug 542222

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 *
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 *
 * The Initial Developer of the Original Code is IBM Corporation.
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 *   IBM Corp.
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#include "nsISupports.idl"

native PRNetAddr(union PRNetAddr);

/**
 * nsIDNSRecord
 *
 * this interface represents the result of a DNS lookup.  since a DNS
 * query may return more than one resolved IP address, the record acts
 * like an enumerator, allowing the caller to easily step through the
 * list of IP addresses.
 */
[scriptable, uuid(31c9c52e-1100-457d-abac-d2729e43f506)]
interface nsIDNSRecord : nsISupports
{
    /**
     * @return the canonical hostname for this record.  this value is empty if
     * the record was not fetched with the RESOLVE_CANONICAL_NAME flag.
     *
     * e.g., www.mozilla.org --> rheet.mozilla.org
     */
    readonly attribute ACString canonicalName;

    /**
     * this function copies the value of the next IP address into the
     * given PRNetAddr struct and increments the internal address iterator.
     *
     * @param aPort
     *        A port number to initialize the PRNetAddr with.
     *
     * @throws NS_ERROR_NOT_AVAILABLE if there is not another IP address in
     * the record.
     */
    [noscript] PRNetAddr getNextAddr(in PRUint16 aPort);

    /**
     * this function returns the value of the next IP address as a
     * string and increments the internal address iterator.
     *
     * @throws NS_ERROR_NOT_AVAILABLE if there is not another IP address in
     * the record.
     */
    ACString getNextAddrAsString();

    /**
     * this function returns true if there is another address in the record.
     */
    boolean hasMore();

    /**
     * this function resets the internal address iterator to the first
     * address in the record.
     */
    void rewind();
};