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+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef utils_h
+#define utils_h
+
+#include <src/config/controlState.h>
+#include <src/utils/address.h>
+#include <src/utils/commands.h>
+
+/**
+ * Return true if string is purely an integer
+ */
+bool utils_IsNumber(const char *string);
+
+/**
+ * A symbolic name must be at least 1 character and must begin with an alpha.
+ * The remainder must be an alphanum.
+ */
+bool utils_ValidateSymbolicName(const char *symbolic);
+
+/**
+ * Convert an internet address family (IPv4) to the address format used by the
+ * Fwd
+ */
+Address *utils_AddressFromInet(in_addr_t *addr4, in_port_t *port);
+
+/**
+ * Convert an internet address family (IPv6) to the address format used by the
+ * Fwd
+ */
+Address *utils_AddressFromInet6(struct in6_addr *addr6, in_port_t *port);
+
+/**
+ *Create an Ack message instance as a response of a control successfully
+ *completed.
+ */
+struct iovec *utils_CreateAck(header_control_message *header, void *payload,
+ size_t payloadLen);
+
+/**
+ *Create a Nack message instance as a response of a control unsuccessfully
+ *completed.
+ */
+struct iovec *utils_CreateNack(header_control_message *header, void *payload,
+ size_t payloadLen);
+
+/**
+ *Convert IPv4/IPv6 address from binary to text string. `uint8_t *ipAddress` has
+ *to be a `in_addr_t * or `a struct in6_addr *.
+ */
+char *utils_CommandAddressToString(address_type addressType,
+ union commandAddr *address, in_port_t *port);
+
+/**
+ *Given a command payload, it generates the header and send the request to the
+ *deamon.
+ */
+struct iovec *utils_SendRequest(ControlState *state, command_id command,
+ void *payload, size_t payloadLen);
+
+/**
+ *Convert a IPv4/IPv6 address plus Netmask len from binary to text string in the
+ *form [add]:[port]/[len].
+ */
+const char *utils_PrefixLenToString(address_type addressType,
+ union commandAddr *address,
+ uint8_t *prefixLen);
+
+#endif \ No newline at end of file