ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: usr / include / bind9 / isc

/*
 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, you can obtain one at https://mozilla.org/MPL/2.0/.
 *
 * See the COPYRIGHT file distributed with this work for additional
 * information regarding copyright ownership.
 */

#pragma once

#include <inttypes.h>
#include <stdlib.h>

#include <isc/lang.h>
#include <isc/types.h>

/*! \file isc/random.h
 * \brief Implements wrapper around a cryptographically secure
 * pseudo-random number generator.
 *
 */

ISC_LANG_BEGINDECLS

uint8_t
isc_random8(void);
/*!<
 * \brief Returns a single 8-bit random value.
 */

uint16_t
isc_random16(void);
/*!<
 * \brief Returns a single 16-bit random value.
 */

uint32_t
isc_random32(void);
/*!<
 * \brief Returns a single 32-bit random value.
 */

void
isc_random_buf(void *buf, size_t buflen);
/*!<
 * \brief Fills the region buf of length buflen with random data.
 */

uint32_t
isc_random_uniform(uint32_t upper_bound);
/*!<
 * \brief Will return a single 32-bit value, uniformly distributed but
 *        less than upper_bound.  This is recommended over
 *        constructions like ``isc_random() % upper_bound'' as it
 *        avoids "modulo bias" when the upper bound is not a power of
 *        two.  In the worst case, this function may require multiple
 *        iterations to ensure uniformity.
 */

ISC_LANG_ENDDECLS

[+] ..
[-] types.h [edit]
[-] stats.h [edit]
[-] netscope.h [edit]
[-] httpd.h [edit]
[-] offset.h [edit]
[-] result.h [edit]
[-] random.h [edit]
[-] time.h [edit]
[-] counter.h [edit]
[-] base64.h [edit]
[-] file.h [edit]
[-] barrier.h [edit]
[-] stdtime.h [edit]
[-] thread.h [edit]
[-] safe.h [edit]
[-] print.h [edit]
[-] queue.h [edit]
[-] radix.h [edit]
[-] event.h [edit]
[-] backtrace.h [edit]
[-] crc64.h [edit]
[-] resultclass.h [edit]
[-] bind9.h [edit]
[-] version.h [edit]
[-] ht.h [edit]
[-] stdatomic.h [edit]
[-] mutexblock.h [edit]
[-] serial.h [edit]
[-] md.h [edit]
[-] log.h [edit]
[-] eventclass.h [edit]
[-] stdio.h [edit]
[-] error.h [edit]
[-] quota.h [edit]
[-] meminfo.h [edit]
[-] hp.h [edit]
[-] siphash.h [edit]
[-] util.h [edit]
[-] cmocka.h [edit]
[-] mutex.h [edit]
[-] heap.h [edit]
[-] iterated_hash.h [edit]
[-] string.h [edit]
[-] likely.h [edit]
[-] atomic.h [edit]
[-] app.h [edit]
[-] errno.h [edit]
[-] lib.h [edit]
[-] url.h [edit]
[-] ratelimiter.h [edit]
[-] regex.h [edit]
[-] commandline.h [edit]
[-] symtab.h [edit]
[-] os.h [edit]
[-] lfsr.h [edit]
[-] netdb.h [edit]
[-] condition.h [edit]
[-] magic.h [edit]
[-] hmac.h [edit]
[-] rwlock.h [edit]
[-] mutexatomic.h [edit]
[-] mem.h [edit]
[-] sockaddr.h [edit]
[-] astack.h [edit]
[-] deprecated.h [edit]
[-] errno2result.h [edit]
[-] parseint.h [edit]
[-] bufferlist.h [edit]
[-] tm.h [edit]
[-] timer.h [edit]
[-] buffer.h [edit]
[-] dir.h [edit]
[-] hex.h [edit]
[-] socket.h [edit]
[-] endian.h [edit]
[-] resource.h [edit]
[-] formatcheck.h [edit]
[-] stat.h [edit]
[-] region.h [edit]
[-] netmgr.h [edit]
[-] nonce.h [edit]
[-] refcount.h [edit]
[-] fuzz.h [edit]
[-] align.h [edit]
[-] lex.h [edit]
[-] pool.h [edit]
[-] interfaceiter.h [edit]
[-] assertions.h [edit]
[-] strerr.h [edit]
[-] taskpool.h [edit]
[-] aes.h [edit]
[-] base32.h [edit]
[-] platform.h [edit]
[-] syslog.h [edit]
[-] netaddr.h [edit]
[-] task.h [edit]
[-] net.h [edit]
[-] lang.h [edit]
[-] portset.h [edit]
[-] once.h [edit]
[-] fsaccess.h [edit]
[-] hash.h [edit]
[-] managers.h [edit]
[-] list.h [edit]
[-] utf8.h [edit]