Keep addrman's nService bits consistent with outbound observations

src/addrman.cpp

@@ -500,3 +500,25 @@ void CAddrMan::Connected_(const CService& addr, int64_t nTime)
     if (nTime - info.nTime > nUpdateInterval)
         info.nTime = nTime;
 }
+
+void CAddrMan::SetServices_(const CService& addr, uint64_t nServices)
+{
+    CAddrInfo* pinfo = Find(addr);
+
+    // if not found, bail out
+    if (!pinfo)
+        return;
+
+    CAddrInfo& info = *pinfo;
+
+    // check whether we are talking about the exact same CService (including same port)
+    if (info != addr)
+        return;
+
+    // update info
+    info.nServices = nServices;
+}
+
+int CAddrMan::RandomInt(int nMax){
+    return GetRandInt(nMax);
+}