- Many fixes to the four circle codes during taking the new code into

operation.
- Fixed some missing output
- Second generation histogram memory and velocity selector objects
- Fixed a problem in diffscan

conman.c

@@ -387,7 +387,7 @@ void SCDeleteConnection(void *pData)
   }
 
   /* remove possible buffers */
-  if (pVictim->data != NULL) {
+  if (pVictim->data != NULL && pVictim->dataOwner == 1) {
     DeleteDynString(pVictim->data);
   }
 
@@ -427,6 +427,7 @@ SConnection *SCCopyConnection(SConnection * pCon)
   result->contextStack = -1;
   result->iList = -1;
   result->runLevel = pCon->runLevel;
+  result->data = pCon->data;
   return result;
 }
 
@@ -869,7 +870,7 @@ int SCStartBuffering(SConnection * pCon)
   if (!VerifyConnection(pCon)) {
     return 0;
   }
-  if (pCon->data != NULL) {
+  if (pCon->data != NULL && pCon->dataOwner == 1) {
     DeleteDynString(pCon->data);
   }
   pCon->data = CreateDynString(128, 128);
@@ -878,6 +879,7 @@ int SCStartBuffering(SConnection * pCon)
   }
   pCon->oldWriteFunc = pCon->write;
   pCon->write = SCBufferWrite;
+  pCon->dataOwner = 1;
   return 1;
 }