/**************************************************************************
* 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: InputStream.java,v 1.2 2006/10/04 14:24:15 cvsroot Exp $
*/
package java.io;
public abstract class InputStream {
public InputStream(){}
public abstract int read() throws IOException;
public int read(byte[] b)
throws IOException
{
return read(b, 0, b.length);
}
public int read(byte [] b, int off, int len)
throws IOException
{
if(off<0 || len<0 || off > b.length - len)
throw new ArrayIndexOutOfBoundsException();
int i=0;
int next;
for(i=0 ; i<len ; i++) {
next = read();
if (next<0)
break;
b[i+off] = (byte)next;
}
return ((i==0) ? -1 : i);
}
public long skip(long n)
throws IOException
{
if(n < 0 || n > Integer.MAX_VALUE){
return 0;
}
int m = (int)n;
long j;
int next;
for(j=0;j<m;++j) {
next = read();
if (next<0) break;
}
return j;
}
public int available()
throws IOException
{
return 0;
}
public void close() throws IOException {}
public void mark(int readLimit) {}
public void reset() throws IOException {
throw new IOException();
}
public boolean markSupported() {
return false;
}
}