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 20 void 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 27 int 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 37 const char *RAND_file_name(char *buf, size_t num) { return NULL; } 38 39 void RAND_add(const void *buf, int num, double entropy) {} 40 41 int RAND_egd(const char *path) { 42 return 255; 43 } 44 45 int RAND_poll(void) { 46 return 1; 47 } 48 49 int RAND_status(void) { 50 return 1; 51 } 52 53 static 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 62 RAND_METHOD *RAND_SSLeay(void) { 63 return (RAND_METHOD*) &kSSLeayMethod; 64 } 65 66 const RAND_METHOD *RAND_get_rand_method(void) { return RAND_SSLeay(); } 67 68 void RAND_set_rand_method(const RAND_METHOD *method) {} 69 70 void RAND_cleanup(void) {} 71
