Dont leak every single buffer we read from the socket.

lib/socket.c

@@ -266,7 +266,7 @@ static int rpc_read_from_socket(struct rpc_context *rpc)
 			rpc_set_error(rpc, "Invalid/garbage pdu received from server. Closing socket");
 			return -1;
 		}
-		free(rpc->inbuf);
+		free(buf);
 	}
 
 	return 0;