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
krb5_init_keyblock(krb5_context context,krb5_enctype enctype,size_t length,krb5_keyblock ** out)37 krb5_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