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