From 227151666864a3bb53a773c41e7a9367023f9cc1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Love=20H=C3=B6rnquist=20=C3=85strand?= <lha@kth.se>
Date: Wed, 23 Apr 2003 17:34:57 +0000
Subject: [PATCH] add compat mit krb5_c checksum related functions

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@12113 ec53bebd-3082-4978-b11e-865c3cabbd6b
---
 lib/krb5/mit_glue.c | 149 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 lib/krb5/mit_glue.c

diff --git a/lib/krb5/mit_glue.c b/lib/krb5/mit_glue.c
new file mode 100644
index 000000000..5c545898d
--- /dev/null
+++ b/lib/krb5/mit_glue.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (c) 2003 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden). 
+ * 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 "krb5_locl.h"
+RCSID("$Id$");
+
+/*
+ * Glue for MIT API
+ */
+
+krb5_error_code
+krb5_c_make_checksum(krb5_context context, 
+		     krb5_cksumtype cksumtype, 
+		     const krb5_keyblock *key, 
+		     krb5_keyusage usage,
+		     const krb5_data *input, 
+		     krb5_checksum *cksum)
+{
+    krb5_error_code ret;
+    krb5_crypto crypto;
+
+    ret = krb5_crypto_init(context, key, ETYPE_NULL, &crypto);
+    if (ret)
+	return ret;
+
+    ret = krb5_create_checksum(context, crypto,  usage, cksumtype,
+			       input->data, input->length, cksum);
+    krb5_crypto_destroy(context, crypto);
+
+    return ret ;
+}
+
+krb5_error_code
+krb5_c_verify_checksum(krb5_context context, const krb5_keyblock *key,
+		       krb5_keyusage usage, const krb5_data *data,
+		       const krb5_checksum *cksum, krb5_boolean *valid)
+{
+    krb5_error_code ret;
+    krb5_checksum data_cksum;
+
+    *valid = 0;
+
+    ret = krb5_c_make_checksum(context, cksum->cksumtype,
+			       key, usage, data, &data_cksum);
+    if (ret)
+	return ret;
+
+    if (data_cksum.cksumtype == cksum->cksumtype
+	&& data_cksum.checksum.length == cksum->checksum.length
+	&& memcmp(data_cksum.checksum.data, cksum->checksum.data, cksum->checksum.length) == 0)
+	*valid = 1;
+
+    krb5_free_checksum_contents(context, &data_cksum);
+
+    return 0;
+}
+
+krb5_error_code
+krb5_c_get_checksum(krb5_context context, const krb5_checksum *cksum,
+		    krb5_cksumtype *type, krb5_data **data)
+{
+    krb5_error_code ret;
+
+    *data = malloc(sizeof(**data));
+    if (data == NULL)
+	return ENOMEM;
+    *type = cksum->cksumtype;
+    ret = copy_octet_string(&cksum->checksum, *data);
+    if (ret) {
+	free(*data);
+	*data = NULL;
+    }
+    return ret;
+}
+
+krb5_error_code
+krb5_c_set_checksum(krb5_context context, krb5_checksum *cksum,
+		    krb5_cksumtype type, const krb5_data *data)
+{
+    cksum->cksumtype = type;
+    return copy_octet_string(data, &cksum->checksum);
+}
+
+void 
+krb5_free_checksum (krb5_context context, krb5_checksum *cksum)
+{
+    krb5_checksum_free(context, cksum);
+    free(cksum);
+}
+
+void
+krb5_free_checksum_contents(krb5_context context, krb5_checksum *cksum)
+{
+    krb5_checksum_free(context, cksum);
+}
+
+void
+krb5_checksum_free(krb5_context context, krb5_checksum *cksum)
+{
+    free_Checksum(cksum);
+}
+
+krb5_error_code
+krb5_copy_checksum (krb5_context context,
+		    const krb5_checksum *old,
+		    krb5_checksum **new)
+{
+    *new = malloc(sizeof(**new));
+    if (*new == NULL)
+	return ENOMEM;
+    return copy_Checksum(old, *new);
+}
+
+krb5_error_code
+krb5_c_checksum_length (krb5_context context, krb5_cksumtype cksumtype,
+			size_t *length)
+{
+    return krb5_checksumsize(context, cksumtype, length);
+}