Fix CFB and OFB modes in eng_padlock.c. Engine was consistent with itself,
but not interoperable with the rest of the world. test_padlock script is
added mostly for reference.

test/test_padlock

diff --git a/test/test_padlock b/test/test_padlock
new file mode 100755
index 0000000..6dd4911
--- /dev/null
+++ b/test/test_padlock
@@ -0,0 +1,64 @@
+#!/bin/sh
+
+PROG=$1
+
+if [ -x $PROG ]; then
+    if expr "x`$PROG version`" : "xOpenSSL" > /dev/null; then
+	:
+    else
+	echo "$PROG is not OpenSSL executable"
+	exit 1
+    fi
+else
+    echo "$PROG is not executable"
+    exit 1;
+fi
+
+if $PROG engine padlock | grep -v no-ACE; then
+
+    HASH=`cat $PROG | $PROG dgst -hex`
+
+    ACE_ALGS="	aes-128-ecb aes-192-ecb aes-256-ecb \
+		aes-128-cbc aes-192-cbc aes-256-cbc \
+		aes-128-cfb aes-192-cfb aes-256-cfb \
+		aes-128-ofb aes-192-ofb aes-256-ofb"
+
+    nerr=0
+
+    for alg in $ACE_ALGS; do
+	echo $alg
+	TEST=`(	cat $PROG | \
+		$PROG enc -e -k $HASH -$alg -bufsize 999 -engine padlock | \
+		$PROG enc -d -k $HASH -$alg | \
+		$PROG dgst -hex ) 2>/dev/null`
+	if [ $TEST != $HASH ]; then
+		echo "-$alg encrypt test failed"
+		nerr=`expr $nerr + 1`
+	fi
+	TEST=`(	cat $PROG | \
+		$PROG enc -e -k $HASH -$alg | \
+		$PROG enc -d -k $HASH -$alg -bufsize 999 -engine padlock | \
+		$PROG dgst -hex ) 2>/dev/null`
+	if [ $TEST != $HASH ]; then
+		echo "-$alg decrypt test failed"
+		nerr=`expr $nerr + 1`
+	fi
+	TEST=`(	cat $PROG | \
+		$PROG enc -e -k $HASH -$alg -engine padlock | \
+		$PROG enc -d -k $HASH -$alg -engine padlock | \
+		$PROG dgst -hex ) 2>/dev/null`
+	if [ $TEST != $HASH ]; then
+		echo "-$alg en/decrypt test failed"
+		nerr=`expr $nerr + 1`
+	fi
+    done
+
+    if [ $nerr -gt 0 ]; then
+	echo "PadLock ACE test failed."
+	exit 1;
+    fi
+else
+    echo "PadLock ACE is not available"
+fi
+
+exit 0