Patch for functionality

rec_wipe.patch

--- a/rec_channel_rec.cc	2010-12-30 12:07:59.000000000 +0200
+++ b/rec_channel_rec.cc	2011-01-10 10:42:34.413677661 +0200
@@ -179,7 +179,8 @@
 
 uint64_t* pleaseWipeCache(const std::string& canon)
 {
-  return new uint64_t(t_RC->doWipeCache(canon));
+  // clear packet cache too
+  return new uint64_t(t_RC->doWipeCache(canon) + t_packetCache->doWipePacketCache(canon));
 }
 
 
@@ -570,8 +571,7 @@
   if(cmd=="dump-ednsstatus" || cmd=="dump-edns") 
     return doDumpEDNSStatus(begin, end);
 
-
-  if(cmd=="wipe-cache") 
+  if(cmd=="wipe-cache" || cmd=="flushname") 
     return doWipeCache(begin, end);
 
   if(cmd=="reload-lua-script") 
--- a/recpacketcache.cc	2010-12-30 12:07:59.000000000 +0200
+++ b/recpacketcache.cc	2011-01-10 12:03:21.663870105 +0200
@@ -12,6 +12,28 @@
   d_hits = d_misses = 0;
 }
 
+int RecursorPacketCache::doWipePacketCache(const string& name, uint16_t qtype)
+{
+  int count=0;
+  for(packetCache_t::iterator iter = d_packetCache.begin(); iter != d_packetCache.end();)
+  {
+    const struct dnsheader* packet = reinterpret_cast<const struct dnsheader*>((*iter).d_packet.c_str());
+    if (packet->qdcount>0) 
+    {
+	// find out type
+	const struct dnsrecordheader *header = reinterpret_cast<const struct dnsrecordheader*>((*iter).d_packet.c_str()+sizeof(struct dnsheader));
+	uint16_t type = header->d_type;
+	std::string domain=questionExpand((*iter).d_packet.c_str(), (*iter).d_packet.size(), type); 	
+	if (name == domain) 
+	{ 
+  	  iter = d_packetCache.erase(iter);
+	  count++;
+	} else iter++;
+    }
+  }
+  return count;
+}
+
 bool RecursorPacketCache::getResponsePacket(const std::string& queryPacket, time_t now, 
   std::string* responsePacket, uint32_t* age)
 {
--- a/recpacketcache.hh	2010-12-30 12:07:59.000000000 +0200
+++ b/recpacketcache.hh	2011-01-10 10:31:42.733685029 +0200
@@ -22,6 +22,7 @@
   bool getResponsePacket(const std::string& queryPacket, time_t now, std::string* responsePacket, uint32_t* age);
   void insertResponsePacket(const std::string& responsePacket, time_t now, uint32_t ttd);
   void doPruneTo(unsigned int maxSize=250000);
+  int doWipePacketCache(const string& name, uint16_t qtype=0xffff);
   
   void prune();
   uint64_t d_hits, d_misses;