lib/libcrypto/rand/rand_lib.c

   1 /* $OpenBSD: rand_lib.c,v 1.20 2014/10/22 13:02:04 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 }