1/*
2 * Copyright (C) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15#ifndef OHOS_DHCP_OPTIONS_H
16#define OHOS_DHCP_OPTIONS_H
17
18
19#include <stdint.h>
20#include <stdbool.h>
21
22#include "dhcp_client_def.h"
23
24#ifdef __cplusplus
25extern "C" {
26#endif
27
28uint8_t GetDhcpOptionDataLen(const uint8_t code);
29const uint8_t *GetDhcpOption(const struct DhcpPacket *packet, int code, size_t *length);
30bool GetDhcpOptionUint8(const struct DhcpPacket *packet, int code, uint8_t *data);
31bool GetDhcpOptionUint32(const struct DhcpPacket *packet, int code, uint32_t *data);
32bool GetDhcpOptionUint32n(const struct DhcpPacket *packet, int code, uint32_t *data1, uint32_t *data2);
33char *GetDhcpOptionString(const struct DhcpPacket *packet, int code);
34int GetEndOptionIndex(const uint8_t *pOpts);
35int AddOptStrToOpts(uint8_t *pOpts, uint8_t *pOpt, int nOptLen);
36int AddOptValueToOpts(uint8_t *pOpts, uint8_t code, uint32_t value);
37
38#ifdef __cplusplus
39}
40#endif
41#endif
42