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 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