/**************************************************************************
* Copyright (c) 2001 by Punch Telematix. All rights reserved. *
* *
* Redistribution and use in source and binary forms, with or without *
* modification, are permitted provided that the following conditions *
* are met: *
* 1. Redistributions of source code must retain the above copyright *
* notice, this list of conditions and the following disclaimer. *
* 2. Redistributions in binary form must reproduce the above copyright *
* notice, this list of conditions and the following disclaimer in the *
* documentation and/or other materials provided with the distribution. *
* 3. Neither the name of Punch Telematix nor the names of *
* other contributors may be used to endorse or promote products *
* derived from this software without specific prior written permission.*
* *
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED *
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF *
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. *
* IN NO EVENT SHALL PUNCH TELEMATIX OR OTHER CONTRIBUTORS BE LIABLE *
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR *
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF *
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR *
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, *
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE *
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN *
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
**************************************************************************/
/*
** $Id: DigestInputStream.java,v 1.1.1.1 2004/07/12 14:07:46 cvs Exp $
*/
package java.security;
import java.io.FilterInputStream;
import java.io.InputStream;
import java.io.IOException;
public class DigestInputStream extends FilterInputStream {
protected MessageDigest digest;
private boolean digesting = false;
public DigestInputStream(InputStream stream, MessageDigest digest) {
super(stream);
this.digest = digest;
}
public MessageDigest getMessageDigest() {
return digest;
}
public void setMessageDigest(MessageDigest d) {
digest = d;
}
public int read() throws IOException {
int rd = in.read();
if (digesting && rd != -1) {
digest.update((byte)rd);
}
return rd;
}
public int read(byte[] b, int off, int len) throws IOException {
int rd = in.read(b,off,len);
if (digesting && rd != -1) {
digest.update(b,off,len);
}
return rd;
}
public void on (boolean foo) {
digesting = foo;
}
public String toString() {
return "DigestInputStream on inputstream "+in+" and digest "+digest;
}
}