From 97b8365cafc3a344a22d3980b8ed885f5c6d8357 Mon Sep 17 00:00:00 2001
From: Tom Tromey <tromey@gcc.gnu.org>
Date: Tue, 9 Jan 2007 19:58:05 +0000
Subject: Merged gcj-eclipse branch to trunk.
From-SVN: r120621
---
libjava/classpath/java/security/SignatureSpi.java | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
(limited to 'libjava/classpath/java/security/SignatureSpi.java')
diff --git a/libjava/classpath/java/security/SignatureSpi.java b/libjava/classpath/java/security/SignatureSpi.java
index 25d49de..3b46815 100644
--- a/libjava/classpath/java/security/SignatureSpi.java
+++ b/libjava/classpath/java/security/SignatureSpi.java
@@ -37,6 +37,7 @@ exception statement from your version. */
package java.security;
+import java.nio.ByteBuffer;
import java.security.spec.AlgorithmParameterSpec;
/**
@@ -131,6 +132,24 @@ public abstract class SignatureSpi
throws SignatureException;
/**
+ * Update this signature with the {@link java.nio.Buffer#remaining()}
+ * bytes of the given buffer.
+ *
+ * @param input The input buffer.
+ * @throws SignatureException
+ */
+ protected void engineUpdate(ByteBuffer input) throws SignatureException
+ {
+ byte[] buf = new byte[4096];
+ while (input.hasRemaining())
+ {
+ int l = Math.min(input.remaining(), buf.length);
+ input.get(buf, 0, l);
+ engineUpdate(buf, 0, l);
+ }
+ }
+
+ /**
* Returns the signature bytes of all the data fed to this instance. The
* format of the output depends on the underlying signature algorithm.
*
--
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