1 /* $OpenBSD: rand_lib.c,v 1.19 2014/07/11 08:44:49 jsing Exp $ */
2 /*
3  * Copyright (c) 2014 Ted Unangst <tedu@openbsd.org>
4  *
5  * Permission to use, copy, modify, and distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #include <stdlib.h>
19 
20 #include <openssl/opensslconf.h>
21 
22 #include <openssl/rand.h>
23 
24 /*
25  * The useful functions in this file are at the bottom.
26  */
27 int
28 RAND_set_rand_method(const RAND_METHOD *meth)
29 {
30 	return 1;
31 }
32 
33 const RAND_METHOD *
34 RAND_get_rand_method(void)
35 {
36 	return NULL;
37 }
38 
39 RAND_METHOD *
40 RAND_SSLeay(void)
41 {
42 	return NULL;
43 }
44 
45 #ifndef OPENSSL_NO_ENGINE
46 int
47 RAND_set_rand_engine(ENGINE *engine)
48 {
49 	return 1;
50 }
51 #endif
52 
53 void
54 RAND_cleanup(void)
55 {
56 
57 }
58 
59 void
60 RAND_seed(const void *buf, int num)
61 {
62 
63 }
64 
65 void
66 RAND_add(const void *buf, int num, double entropy)
67 {
68 
69 }
70 
71 int
72 RAND_status(void)
73 {
74 	return 1;
75 }
76 
77 int
78 RAND_poll(void)
79 {
80 	return 1;
81 }
82 
83 /*
84  * Hurray. You've made it to the good parts.
85  */
86 int
87 RAND_bytes(unsigned char *buf, int num)
88 {
89 	if (num > 0)
90 		arc4random_buf(buf, num);
91 	return 1;
92 }
93 
94 int
95 RAND_pseudo_bytes(unsigned char *buf, int num)
96 {
97 	if (num > 0)
98 		arc4random_buf(buf, num);
99 	return 1;
100 }
101