1/*
2 * Copyright (c) 2010 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Portions Copyright (c) 2010 Apple Inc. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#include <config.h>
37
38
39#include <stdio.h>
40#include <stdlib.h>
41#include <rand.h>
42#include <heim_threads.h>
43
44#include <roken.h>
45
46#include "randi.h"
47
48#if defined(__APPLE_PRIVATE__) && !defined(__APPLE_TARGET_EMBEDDED__)
49
50#include <CommonCrypto/CommonRandomSPI.h>
51
52/*
53 * Unix /dev/random
54 */
55
56static void
57cc_seed(const void *indata, int size)
58{
59}
60
61
62static int
63cc_bytes(unsigned char *outdata, int size)
64{
65    if (CCRandomCopyBytes(kCCRandomDefault, outdata, size) != kCCSuccess)
66	return 0;
67    return 1;
68}
69
70static void
71cc_cleanup(void)
72{
73}
74
75static void
76cc_add(const void *indata, int size, double entropi)
77{
78}
79
80static int
81cc_pseudorand(unsigned char *outdata, int size)
82{
83    return cc_bytes(outdata, size);
84}
85
86static int
87cc_status(void)
88{
89    return 1;
90}
91
92const RAND_METHOD hc_rand_cc_method = {
93    cc_seed,
94    cc_bytes,
95    cc_cleanup,
96    cc_add,
97    cc_pseudorand,
98    cc_status
99};
100
101#endif /* __APPLE_PRIVATE__ */
102
103const RAND_METHOD *
104RAND_cc_method(void)
105{
106#if defined(__APPLE_PRIVATE__) && !defined(__APPLE_TARGET_EMBEDDED__)
107    return &hc_rand_cc_method;
108#else
109    return NULL;
110#endif
111}
112