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/*@ S-nail - a mail user agent derived from Berkeley Mail.
*@ Random string creation.
*
* Copyright (c) 2015 - 2020 Steffen (Daode) Nurpmeso <steffen@sdaoden.eu>.
* SPDX-License-Identifier: ISC
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef mx_RANDOM_H
#define mx_RANDOM_H
#include <mx/nail.h>
#define mx_HEADER
#include <su/code-in.h>
/* mx_HAVE_RANDOM: supported (external) PRG implementations */
#define mx_RANDOM_IMPL_BUILTIN 0
#define mx_RANDOM_IMPL_ARC4 1
#define mx_RANDOM_IMPL_TLS 2
#define mx_RANDOM_IMPL_GETENTROPY 3
#define mx_RANDOM_IMPL_GETRANDOM 4 /* (both, syscall + library) */
#define mx_RANDOM_IMPL_URANDOM 5
/* Get a (pseudo) random string of *len* bytes, _not_ counting the NUL
* terminator, the second returns an n_autorec_alloc()ed buffer.
* If su_STATE_REPRODUCIBLE and reprocnt_or_nil not NIL then we produce
* a reproducible string by using and managing that counter instead */
EXPORT char *mx_random_create_buf(char *dat, uz len, u32 *reprocnt_or_nil);
EXPORT char *mx_random_create_cp(uz len, u32 *reprocnt_or_nil);
#include <su/code-ou.h>
#endif /* mx_RANDOM_H */
/* s-it-mode */
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