Attachment 835375 Details for Bug 991621 – clean implementation of JrpcgenSHA.java

clean implementation of JrpcgenSHA.java

JrpcgenSHA.java (text/x-csrc), 2.07 KB, created by Will Benton on 2013-12-11 16:52:41 UTC

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Creator: Will Benton

Created: 2013-12-11 16:52:41 UTC

Size: 2.07 KB

patch

obsolete

>/*
>    JpcgenSHA.java -- implementation of the JrpcgenSHA interface that 
>    calls out to the Java standard library instead of to bundled code
>
>    This program is free software: you can redistribute it and/or modify
>    it under the terms of the GNU Library General Public License as published by
>    the Free Software Foundation, either version 2 of the License, or
>    (at your option) any later version.
>
>    This program 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 General Public License for more details.
>
>    You should have received a copy of the GNU Library General Public License
>    along with this program.  If not, see <http://www.gnu.org/licenses/>.
>    
>    @author William Benton <willb@redhat.com>
>*/
>
>package org.acplt.oncrpc.apps.jrpcgen;
>
>import java.security.MessageDigest;
>import java.security.NoSuchAlgorithmException;
>
>public class JrpcgenSHA {
>    public JrpcgenSHA() {
>        reset();
>    }
>    
>    public void update(byte b) {
>        this.digest.update(b);
>    }
>    
>    public void update(short s) {
>        for (int pos = 0 ; pos < 2 ; pos ++) {
>            update((byte)((s >> (pos * 8)) & 0xff));
>        }
>    }
>    
>    public void update(int i) {
>        for (int pos = 0 ; pos < 4 ; pos ++) {
>            update((byte)((i >> (pos * 8)) & 0xff));
>        }
>    }
>    
>    public void update(String s) {
>        for (char ch: s.toCharArray()) {
>            update((short)ch);
>        }
>    }
>    
>    public long getHash() {
>        byte[] h = this.digest.digest();
>        long result = 0;
>        for(int i = 0; i < 8; i++) {
>            result += ((long)h[i] & 0xffl) << (i*8);
>        }
>        return result;
>    }
>    
>    private void reset() {
>        try {
>            this.digest = MessageDigest.getInstance("SHA-1");
>        } catch (NoSuchAlgorithmException e) {
>            throw new RuntimeException("This JVM doesn't supply SHA-1; something is seriously wrong");
>        }
>    }
>    
>    private MessageDigest digest;
>}

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Attachments on bug 991621: 835375