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/* 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.smb;
import java.util.Enumeration;
import org.apache.log4j.Logger;
import jcifs.Configuration;
abstract class SmbComTransactionResponse extends ServerMessageBlock implements Enumeration {
private static final Logger log = Logger.getLogger(SmbComNtTransactionResponse.class);
// relative to headerStart
static final int SETUP_OFFSET = 61;
static final int DISCONNECT_TID = 0x01;
static final int ONE_WAY_TRANSACTION = 0x02;
private int pad;
private int pad1;
private boolean parametersDone, dataDone;
protected int totalParameterCount;
protected int totalDataCount;
protected int parameterCount;
protected int parameterOffset;
protected int parameterDisplacement;
protected int dataOffset;
protected int dataDisplacement;
protected int setupCount;
protected int bufParameterStart;
protected int bufDataStart;
int dataCount;
byte subCommand;
boolean hasMore = true;
boolean isPrimary = true;
byte[] txn_buf;
/* for doNetEnum and doFindFirstNext */
int status;
int numEntries;
FileEntry[] results;
SmbComTransactionResponse ( Configuration config ) {
super(config);
this.txn_buf = null;
}
@Override
void reset () {
super.reset();
this.bufDataStart = 0;
this.isPrimary = this.hasMore = true;
this.parametersDone = this.dataDone = false;
}
@Override
public boolean hasMoreElements () {
return this.errorCode == 0 && this.hasMore;
}
@Override
public SmbComTransactionResponse nextElement () {
if ( this.isPrimary ) {
this.isPrimary = false;
}
return this;
}
@Override
int writeParameterWordsWireFormat ( byte[] dst, int dstIndex ) {
return 0;
}
@Override
int writeBytesWireFormat ( byte[] dst, int dstIndex ) {
return 0;
}
@Override
int readParameterWordsWireFormat ( byte[] buffer, int bufferIndex ) {
int start = bufferIndex;
this.totalParameterCount = SMBUtil.readInt2(buffer, bufferIndex);
if ( this.bufDataStart == 0 ) {
this.bufDataStart = this.totalParameterCount;
}
bufferIndex += 2;
this.totalDataCount = SMBUtil.readInt2(buffer, bufferIndex);
bufferIndex += 4; // Reserved
this.parameterCount = SMBUtil.readInt2(buffer, bufferIndex);
bufferIndex += 2;
this.parameterOffset = SMBUtil.readInt2(buffer, bufferIndex);
bufferIndex += 2;
this.parameterDisplacement = SMBUtil.readInt2(buffer, bufferIndex);
bufferIndex += 2;
this.dataCount = SMBUtil.readInt2(buffer, bufferIndex);
bufferIndex += 2;
this.dataOffset = SMBUtil.readInt2(buffer, bufferIndex);
bufferIndex += 2;
this.dataDisplacement = SMBUtil.readInt2(buffer, bufferIndex);
bufferIndex += 2;
this.setupCount = buffer[ bufferIndex ] & 0xFF;
bufferIndex += 2;
if ( this.setupCount != 0 ) {
if ( log.isInfoEnabled() ) {
log.info("setupCount is not zero: " + this.setupCount);
}
}
return bufferIndex - start;
}
@Override
int readBytesWireFormat ( byte[] buffer, int bufferIndex ) {
this.pad = this.pad1 = 0;
if ( this.parameterCount > 0 ) {
bufferIndex += this.pad = this.parameterOffset - ( bufferIndex - this.headerStart );
System.arraycopy(buffer, bufferIndex, this.txn_buf, this.bufParameterStart + this.parameterDisplacement, this.parameterCount);
bufferIndex += this.parameterCount;
}
if ( this.dataCount > 0 ) {
bufferIndex += this.pad1 = this.dataOffset - ( bufferIndex - this.headerStart );
System.arraycopy(buffer, bufferIndex, this.txn_buf, this.bufDataStart + this.dataDisplacement, this.dataCount);
bufferIndex += this.dataCount;
}
/*
* Check to see if the entire transaction has been
* read. If so call the read methods.
*/
if ( !this.parametersDone && ( this.parameterDisplacement + this.parameterCount ) == this.totalParameterCount ) {
this.parametersDone = true;
}
if ( !this.dataDone && ( this.dataDisplacement + this.dataCount ) == this.totalDataCount ) {
this.dataDone = true;
}
if ( this.parametersDone && this.dataDone ) {
this.hasMore = false;
readParametersWireFormat(this.txn_buf, this.bufParameterStart, this.totalParameterCount);
readDataWireFormat(this.txn_buf, this.bufDataStart, this.totalDataCount);
}
return this.pad + this.parameterCount + this.pad1 + this.dataCount;
}
abstract int writeSetupWireFormat ( byte[] dst, int dstIndex );
abstract int writeParametersWireFormat ( byte[] dst, int dstIndex );
abstract int writeDataWireFormat ( byte[] dst, int dstIndex );
abstract int readSetupWireFormat ( byte[] buffer, int bufferIndex, int len );
abstract int readParametersWireFormat ( byte[] buffer, int bufferIndex, int len );
abstract int readDataWireFormat ( byte[] buffer, int bufferIndex, int len );
@Override
public String toString () {
return new String(
super.toString() + ",totalParameterCount=" + this.totalParameterCount + ",totalDataCount=" + this.totalDataCount + ",parameterCount="
+ this.parameterCount + ",parameterOffset=" + this.parameterOffset + ",parameterDisplacement=" + this.parameterDisplacement
+ ",dataCount=" + this.dataCount + ",dataOffset=" + this.dataOffset + ",dataDisplacement=" + this.dataDisplacement
+ ",setupCount=" + this.setupCount + ",pad=" + this.pad + ",pad1=" + this.pad1);
}
}