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