#include <RROverlay.hxx>

Collaboration diagram for resip::RROverlay:

Classes
class	OverlayException
Public Member Functions
	RROverlay (const unsigned char aptr, const unsigned char abuf, int alen)
const unsigned char *	data () const
const unsigned char *	msg () const
int	msgLength () const
int	dataLength () const
int	nameLength () const
int	ttl () const
int	type () const
const Data &	domain () const
Private Attributes
const unsigned char *	mData
const unsigned char *	mMsg
int	mMsgLen
int	mDataLen
int	mNameLen
int	mTTL
int	mType
Data	mDomain
Friends
bool	operator< (const RROverlay &r1, const RROverlay &r2)

Detailed Description

Definition at line 9 of file RROverlay.hxx.

Constructor & Destructor Documentation

RROverlay::RROverlay	(	const unsigned char *	aptr,
		const unsigned char *	abuf,
		int	alen
	)

Definition at line 30 of file RROverlay.cxx.

References mData, mDataLen, mDomain, mMsg, mMsgLen, mNameLen, mTTL, mType, and RRFIXEDSZ.

                               : 
   mData(0),
   mMsg(0),
   mMsgLen(0),
   mDataLen(0),
   mNameLen(0),
   mTTL(0),
   mType(-1)
{
   char *name;
   long len = 0;

   // Parse the RR name. 
   int status = ares_expand_name(aptr, abuf, alen, &name, &len);
   if (status != ARES_SUCCESS)
   {
      throw OverlayException("Failed parse of RR", __FILE__, __LINE__);
   }
   mDomain = name;
   aptr += len;
   mNameLen = len;
   free(name);
      
   // Make sure there is enough data after the RR name for the fixed
   // part of the RR.
   if (aptr + RRFIXEDSZ > abuf + alen)
   {
      throw OverlayException("Failed parse of RR", __FILE__, __LINE__);
   }
   
   // Parse the fixed part of the RR, and advance to the RR data field. 
   //
   mType = DNS_RR_TYPE(aptr);
   mDataLen = DNS_RR_LEN(aptr);
   mTTL = DNS_RR_TTL(aptr);
   
   aptr += RRFIXEDSZ;
   if (aptr + mDataLen > abuf + alen)
   {
      throw OverlayException("Failed parse of RR", __FILE__, __LINE__);
   }

   mData = aptr;
   mMsgLen = alen;
   mMsg = abuf;
   aptr += mDataLen;
}

Member Function Documentation

const unsigned char* resip::RROverlay::data ( ) const [inline]

Definition at line 38 of file RROverlay.hxx.

References mData.

Referenced by resip::DnsAAAARecord::DnsAAAARecord(), resip::DnsCnameRecord::DnsCnameRecord(), resip::DnsHostRecord::DnsHostRecord(), resip::DnsNaptrRecord::DnsNaptrRecord(), resip::DnsSrvRecord::DnsSrvRecord(), and resip::RRCache::getTTL().

{ return mData; }

int resip::RROverlay::dataLength ( ) const [inline]

Definition at line 41 of file RROverlay.hxx.

References mDataLen.

Referenced by resip::DnsNaptrRecord::DnsNaptrRecord().

{ return mDataLen; }

const Data& resip::RROverlay::domain ( ) const [inline]

Definition at line 45 of file RROverlay.hxx.

References mDomain.

{ return mDomain; }

const unsigned char* resip::RROverlay::msg ( ) const [inline]

Definition at line 39 of file RROverlay.hxx.

References mMsg.

Referenced by resip::DnsAAAARecord::DnsAAAARecord(), resip::DnsCnameRecord::DnsCnameRecord(), resip::DnsHostRecord::DnsHostRecord(), resip::DnsNaptrRecord::DnsNaptrRecord(), resip::DnsSrvRecord::DnsSrvRecord(), and resip::RRCache::getTTL().

{ return mMsg; }

int resip::RROverlay::msgLength ( ) const [inline]

Definition at line 40 of file RROverlay.hxx.

References mMsgLen.

Referenced by resip::DnsAAAARecord::DnsAAAARecord(), resip::DnsCnameRecord::DnsCnameRecord(), resip::DnsHostRecord::DnsHostRecord(), resip::DnsNaptrRecord::DnsNaptrRecord(), resip::DnsSrvRecord::DnsSrvRecord(), and resip::RRCache::getTTL().

{ return mMsgLen; }

int resip::RROverlay::nameLength ( ) const [inline]

Definition at line 42 of file RROverlay.hxx.

References mNameLen.

Referenced by resip::DnsAAAARecord::DnsAAAARecord(), resip::DnsCnameRecord::DnsCnameRecord(), resip::DnsHostRecord::DnsHostRecord(), resip::DnsNaptrRecord::DnsNaptrRecord(), and resip::DnsSrvRecord::DnsSrvRecord().

{ return mNameLen; }

int resip::RROverlay::ttl ( ) const [inline]

Definition at line 43 of file RROverlay.hxx.

References mTTL.

{ return mTTL; }

int resip::RROverlay::type ( ) const [inline]

Definition at line 44 of file RROverlay.hxx.

References mType.

Referenced by resip::RRCache::getTTL().

{ return mType; }

Friends And Related Function Documentation

bool operator<	(	const RROverlay &	r1,
		const RROverlay &	r2
	)		`[friend]`

Definition at line 11 of file RROverlay.hxx.

   {
      if (r1.mType < r2.mType)
      {
         return true;
      }
      if (r1.mType > r2.mType)
      {
         return false;
      }
      return r1.mDomain < r2.mDomain;
   }