Ignore CMPCTBLOCK messages for pruned blocks

sdaftuar · sdaftuar · commit 1d06e4983481 · 2016-07-26T16:52:35.000-04:00
Also ignores CMPCTBLOCK announcements that have too little work.  This is to
prevent disk-exhaustion DoS.
diff --git a/src/main.cpp b/src/main.cpp
@@ -5626,8 +5626,8 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
                 std::vector<CInv> vInv(1);
                 vInv[0] = CInv(MSG_BLOCK, cmpctblock.header.GetHash());
                 pfrom->PushMessage(NetMsgType::GETDATA, vInv);
-                return true;
             }
+            return true;
         }
 
         // If we're not close to tip yet, give up and let parallel block fetch work its magic

Original file line number	Diff line number	Diff line change
`@@ -5626,8 +5626,8 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,`
`5626`	`5626`	`std::vector<CInv> vInv(1);`
`5627`	`5627`	`vInv[0] = CInv(MSG_BLOCK, cmpctblock.header.GetHash());`
`5628`	`5628`	`pfrom->PushMessage(NetMsgType::GETDATA, vInv);`
`5629`		`- return true;`
`5630`	`5629`	`}`
	`5630`	`+ return true;`
`5631`	`5631`	`}`
`5632`	`5632`
`5633`	`5633`	`// If we're not close to tip yet, give up and let parallel block fetch work its magic`