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SMB2 protocol library for communication with Windows servers

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/*
 * Copyright (C)2016 - SMBJ Contributors
 *
 * 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.
 */
package com.hierynomus.ntlm.av;

import com.hierynomus.protocol.commons.Charsets;
import com.hierynomus.protocol.commons.buffer.Buffer;
import com.hierynomus.protocol.commons.buffer.Buffer.BufferException;

public class AvPairString extends AvPair {

    AvPairString(AvId avId) {
        super(avId);
    }

    public AvPairString(AvId avId, String value) {
        super(avId, value);
    }

    @Override
    public AvPairString read(Buffer buffer) throws BufferException {
        int avLen = buffer.readUInt16(); // AvLen (2 bytes)
        this.value = buffer.readString(Charsets.UTF_16LE, avLen / 2); // Value (AvLen bytes)
        return this;
    }

    @Override
    public void write(Buffer buffer) {
        buffer.putUInt16((int) this.avId.getValue()); // AvId (2 bytes)
        buffer.putUInt16(this.value.length() * 2); // AvLen (2 bytes)
        buffer.putString(this.value, Charsets.UTF_16LE); // Value (AvLen bytes)
    }
}