Teach oracles* RPC functions about CCerror and start populating it

src/cc/oracles.cpp

@@ -794,12 +794,14 @@ std::string OracleData(int64_t txfee,uint256 oracletxid,std::vector <uint8_t> da
     mypk = pubkey2pk(Mypubkey());
     if ( data.size() > 8192 )
     {
-        fprintf(stderr,"datasize %d is too big\n",(int32_t)data.size());
+        CCerror = strprintf("datasize %d is too big\n",(int32_t)data.size());
+        fprintf(stderr,"%s\n", CCerror.c_str() );
         return("");
     }
     if ( (datafee= OracleDatafee(pubKey,oracletxid,mypk)) <= 0 )
     {
-        fprintf(stderr,"datafee %.8f is illegal\n",(double)datafee/COIN);
+        CCerror = strprintf("datafee %.8f is illegal\n",(double)datafee/COIN);
+        fprintf(stderr,"%s\n", CCerror.c_str() );
         return("");
     }
     if ( txfee == 0 )

src/wallet/rpcwallet.cpp

@@ -6157,6 +6157,7 @@ UniValue oraclesregister(const UniValue& params, bool fHelp)
     if ( (datafee= atol((char *)params[1].get_str().c_str())) == 0 )
         datafee = atof((char *)params[1].get_str().c_str()) * COIN + 0.00000000499999;
     hex = OracleRegister(0,txid,datafee);
+    RETURN_IF_ERROR(CCerror);
     if ( hex.size() > 0 )
     {
         result.push_back(Pair("result", "success"));
@@ -6178,6 +6179,7 @@ UniValue oraclessubscribe(const UniValue& params, bool fHelp)
     pubkey = ParseHex(params[1].get_str().c_str());
     amount = atof((char *)params[2].get_str().c_str()) * COIN + 0.00000000499999;
     hex = OracleSubscribe(0,txid,pubkey2pk(pubkey),amount);
+    RETURN_IF_ERROR(CCerror);
     if ( hex.size() > 0 )
     {
         result.push_back(Pair("result", "success"));
@@ -6211,6 +6213,9 @@ UniValue oraclesdata(const UniValue& params, bool fHelp)
     txid = Parseuint256((char *)params[0].get_str().c_str());
     data = ParseHex(params[1].get_str().c_str());
     hex = OracleData(0,txid,data);
+
+    RETURN_IF_ERROR(CCerror);
+
     if ( hex.size() > 0 )
     {
         result.push_back(Pair("result", "success"));
@@ -6265,6 +6270,7 @@ UniValue oraclescreate(const UniValue& params, bool fHelp)
         return(result);
     }
     hex = OracleCreate(0,name,description,format);
+    RETURN_IF_ERROR(CCerror);
     if ( hex.size() > 0 )
     {
         result.push_back(Pair("result", "success"));