new file

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@8767 ec53bebd-3082-4978-b11e-865c3cabbd6b
2000-07-22 05:53:02 +00:00
parent 4f94484b76
commit 34cce1476c
1 changed files with 112 additions and 0 deletions
--- a/lib/kadm5/keys.c
+++ b/lib/kadm5/keys.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 1997 - 2000 Kungliga Tekniska H<>gskolan
+ * (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 "kadm5_locl.h"
+
+RCSID("$Id$");
+
+/*
+ * free all the memory used by (len, keys)
+ */
+
+void
+_kadm5_free_keys (kadm5_server_context *context,
+		  int len, Key *keys)
+{
+    int i;
+
+    for (i = 0; i < len; ++i) {
+	free (keys[i].mkvno);
+	keys[i].mkvno = NULL;
+	if (keys[i].salt != NULL) {
+	    free_Salt(keys[i].salt);
+	    free(keys[i].salt);
+	    keys[i].salt = NULL;
+	}
+	krb5_free_keyblock_contents(context->context, &keys[i].key);
+    }
+    free (keys);
+}
+
+/*
+ * null-ify `len', `keys'
+ */
+
+void
+_kadm5_init_keys (Key *keys, int len)
+{
+    int i;
+
+    for (i = 0; i < len; ++i) {
+	keys[i].mkvno               = NULL;
+	keys[i].salt                = NULL;
+	keys[i].key.keyvalue.length = 0;
+	keys[i].key.keyvalue.data   = NULL;
+    }
+}
+
+/*
+ * return 0 iff `keys1, len1' and `keys2, len2' are identical
+ */
+
+int
+_kadm5_cmp_keys(Key *keys1, int len1, Key *keys2, int len2)
+{
+    int i;
+
+    if (len1 != len2)
+	return 1;
+
+    for (i = 0; i < len1; ++i) {
+	if ((keys1[i].salt != NULL && keys2[i].salt == NULL)
+	    || (keys1[i].salt == NULL && keys2[i].salt != NULL))
+	    return 1;
+	if (keys1[i].salt != NULL) {
+	    if (keys1[i].salt->type != keys2[i].salt->type)
+		return 1;
+	    if (keys1[i].salt->salt.length != keys2[i].salt->salt.length)
+		return 1;
+	    if (memcmp (keys1[i].salt->salt.data, keys2[i].salt->salt.data,
+			keys1[i].salt->salt.length) != 0)
+		return 1;
+	}
+	if (keys1[i].key.keytype != keys2[i].key.keytype)
+	    return 1;
+	if (keys1[i].key.keyvalue.length != keys2[i].key.keyvalue.length)
+	    return 1;
+	if (memcmp (keys1[i].key.keyvalue.data, keys2[i].key.keyvalue.data,
+		    keys1[i].key.keyvalue.length) != 0)
+	    return 1;
+    }
+    return 0;
+}