1 files changed, 69 insertions, 0 deletions
diff --git a/source4/heimdal/lib/hcrypto/common.c b/source4/heimdal/lib/hcrypto/common.c
new file mode 100644
index 0000000000..136bf1db10
--- /dev/null
+++ b/source4/heimdal/lib/hcrypto/common.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2010 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Portions Copyright (c) 2010 Apple Inc. 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 the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 THE INSTITUTE OR 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.
+ */
+
+#include <config.h>
+
+#include <errno.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <krb5-types.h>
+#include <rfc2459_asn1.h>
+#include <hcrypto/bn.h>
+
+
+#include "common.h"
+
+int
+_hc_BN_to_integer(BIGNUM *bn, heim_integer *integer)
+{
+    integer->length = BN_num_bytes(bn);
+    integer->data = malloc(integer->length);
+    if (integer->data == NULL)
+	return ENOMEM;
+    BN_bn2bin(bn, integer->data);
+    integer->negative = BN_is_negative(bn);
+    return 0;
+}
+
+BIGNUM *
+_hc_integer_to_BN(const heim_integer *i, BIGNUM *bn)
+{
+    bn = BN_bin2bn(i->data, i->length, bn);
+    if (bn)
+	BN_set_negative(bn, i->negative);
+    return bn;
+}