1#pragma ident	"%Z%%M%	%I%	%E% SMI"
2/*
3 * lib/krb5/krb/init_keyblock.c
4 *
5 * Copyright (C) 2002 by the Massachusetts Institute of Technology.
6 * All rights reserved.
7 *
8 * Export of this software from the United States of America may
9 *   require a specific license from the United States Government.
10 *   It is the responsibility of any person or organization contemplating
11 *   export to obtain such a license before exporting.
12 *
13 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
14 * distribute this software and its documentation for any purpose and
15 * without fee is hereby granted, provided that the above copyright
16 * notice appear in all copies and that both that copyright notice and
17 * this permission notice appear in supporting documentation, and that
18 * the name of M.I.T. not be used in advertising or publicity pertaining
19 * to distribution of the software without specific, written prior
20 * permission.  Furthermore if you modify this software you must label
21 * your software as modified software and not distribute it in such a
22 * fashion that it might be confused with the original M.I.T. software.
23 * M.I.T. makes no representations about the suitability of
24 * this software for any purpose.  It is provided "as is" without express
25 * or implied warranty.
26 *
27 *
28 *
29 * krb5_init_keyblock- a function to set up
30 *  an empty keyblock
31 */
32
33
34#include "k5-int.h"
35#include <assert.h>
36
37krb5_error_code KRB5_CALLCONV  krb5_init_keyblock
38	(krb5_context context, krb5_enctype enctype,
39	 size_t length, krb5_keyblock **out)
40{
41    krb5_keyblock *kb;
42    kb = malloc (sizeof(krb5_keyblock));
43    assert (out);
44    *out = NULL;
45    if (!kb) {
46	return ENOMEM;
47    }
48    kb->magic = KV5M_KEYBLOCK;
49    kb->enctype = enctype;
50    kb->length = length;
51    if(length) {
52	kb->contents = malloc (length);
53	if(!kb->contents) {
54	    free (kb);
55	    return ENOMEM;
56	}
57    } else {
58	kb->contents = NULL;
59    }
60    kb->dk_list = NULL;
61#ifdef _KERNEL
62    kb->kef_key = NULL;
63#else
64    kb->hKey = CK_INVALID_HANDLE;
65#endif
66
67    *out = kb;
68    return 0;
69}
70