1/* Copyright (c) 2017, Google Inc.
2 *
3 * Permission to use, copy, modify, and/or distribute this software for any
4 * purpose with or without fee is hereby granted, provided that the above
5 * copyright notice and this permission notice appear in all copies.
6 *
7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
14
15#include <openssl/rand.h>
16
17#include <limits.h>
18
19
20void RAND_seed(const void *buf, int num) {
21  /* OpenSSH calls |RAND_seed| before jailing on the assumption that any needed
22   * file descriptors etc will be opened. */
23  uint8_t unused;
24  RAND_bytes(&unused, sizeof(unused));
25}
26
27int RAND_load_file(const char *path, long num) {
28  if (num < 0) {  /* read the "whole file" */
29    return 1;
30  } else if (num <= INT_MAX) {
31    return (int) num;
32  } else {
33    return INT_MAX;
34  }
35}
36
37const char *RAND_file_name(char *buf, size_t num) { return NULL; }
38
39void RAND_add(const void *buf, int num, double entropy) {}
40
41int RAND_egd(const char *path) {
42  return 255;
43}
44
45int RAND_poll(void) {
46  return 1;
47}
48
49int RAND_status(void) {
50  return 1;
51}
52
53static const struct rand_meth_st kSSLeayMethod = {
54  RAND_seed,
55  RAND_bytes,
56  RAND_cleanup,
57  RAND_add,
58  RAND_pseudo_bytes,
59  RAND_status,
60};
61
62RAND_METHOD *RAND_SSLeay(void) {
63  return (RAND_METHOD*) &kSSLeayMethod;
64}
65
66void RAND_set_rand_method(const RAND_METHOD *method) {}
67
68void RAND_cleanup(void) {}
69