84 lines
2.7 KiB
Java
84 lines
2.7 KiB
Java
/*
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* Copyright (C) 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.net;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.annotation.SuppressLint;
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import android.annotation.SystemApi;
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import android.os.Parcel;
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import android.os.Parcelable;
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/**
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* A class representing an option in the DHCP protocol.
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*
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* @hide
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*/
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@SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
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public final class DhcpOption implements Parcelable {
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private final byte mType;
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private final byte[] mValue;
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/**
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* Constructs a DhcpOption object.
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*
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* @param type the type of this option. For more information, see
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* https://www.iana.org/assignments/bootp-dhcp-parameters/bootp-dhcp-parameters.xhtml.
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* @param value the value of this option. If {@code null}, DHCP packets containing this option
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* will include the option type in the Parameter Request List. Otherwise, DHCP
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* packets containing this option will include the option in the options section.
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*/
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public DhcpOption(@SuppressLint("NoByteOrShort") byte type, @Nullable byte[] value) {
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mType = type;
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mValue = value;
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}
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@Override
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public int describeContents() {
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return 0;
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}
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@Override
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public void writeToParcel(@NonNull Parcel dest, int flags) {
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dest.writeByte(mType);
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dest.writeByteArray(mValue);
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}
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/** Implement the Parcelable interface */
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public static final @NonNull Creator<DhcpOption> CREATOR =
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new Creator<DhcpOption>() {
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public DhcpOption createFromParcel(Parcel in) {
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return new DhcpOption(in.readByte(), in.createByteArray());
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}
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public DhcpOption[] newArray(int size) {
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return new DhcpOption[size];
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}
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};
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/** Get the type of DHCP option */
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@SuppressLint("NoByteOrShort")
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public byte getType() {
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return mType;
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}
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/** Get the value of DHCP option */
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@Nullable public byte[] getValue() {
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return mValue == null ? null : mValue.clone();
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}
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}
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