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A pure-java CIFS/SMB client library
There is a newer version: 2.1.10
/* jcifs smb client library in Java
 * Copyright (C) 2000  "Michael B. Allen" 
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package jcifs.internal.smb1.trans2;


import jcifs.Configuration;
import jcifs.internal.fscc.FileSystemInformation;
import jcifs.internal.smb1.trans.SmbComTransaction;
import jcifs.internal.util.SMBUtil;
import jcifs.util.Hexdump;


/**
 * 
 */
public class Trans2QueryFSInformation extends SmbComTransaction {

    private int informationLevel;


    /**
     * 
     * @param config
     * @param informationLevel
     */
    public Trans2QueryFSInformation ( Configuration config, int informationLevel ) {
        super(config, SMB_COM_TRANSACTION2, TRANS2_QUERY_FS_INFORMATION);
        this.informationLevel = informationLevel;
        this.totalParameterCount = 2;
        this.totalDataCount = 0;
        this.maxParameterCount = 0;
        this.maxDataCount = 800;
        this.maxSetupCount = 0;
    }


    @Override
    protected int writeSetupWireFormat ( byte[] dst, int dstIndex ) {
        dst[ dstIndex++ ] = this.getSubCommand();
        dst[ dstIndex++ ] = (byte) 0x00;
        return 2;
    }


    @Override
    protected int writeParametersWireFormat ( byte[] dst, int dstIndex ) {
        int start = dstIndex;

        SMBUtil.writeInt2(mapInformationLevel(this.informationLevel), dst, dstIndex);
        dstIndex += 2;

        /*
         * windows98 has what appears to be another 4 0's followed by the share
         * name as a zero terminated ascii string "\TMP" + '\0'
         *
         * As is this works, but it deviates from the spec section 4.1.6.6 but
         * maybe I should put it in. Wonder what NT does?
         */

        return dstIndex - start;
    }


    /**
     * @param il
     * @return
     */
    private static int mapInformationLevel ( int il ) {
        switch ( il ) {
        case FileSystemInformation.SMB_INFO_ALLOCATION:
            return 0x1;
        case FileSystemInformation.FS_SIZE_INFO:
            return 0x103;
        }
        throw new IllegalArgumentException("Unhandled information level");
    }


    @Override
    protected int writeDataWireFormat ( byte[] dst, int dstIndex ) {
        return 0;
    }


    @Override
    protected int readSetupWireFormat ( byte[] buffer, int bufferIndex, int len ) {
        return 0;
    }


    @Override
    protected int readParametersWireFormat ( byte[] buffer, int bufferIndex, int len ) {
        return 0;
    }


    @Override
    protected int readDataWireFormat ( byte[] buffer, int bufferIndex, int len ) {
        return 0;
    }


    @Override
    public String toString () {
        return new String(
            "Trans2QueryFSInformation[" + super.toString() + ",informationLevel=0x" + Hexdump.toHexString(this.informationLevel, 3) + "]");
    }
}