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sudo-project
GitHub Repository: sudo-project/sudo
 Path: blob/main/include/sudo_rand.h
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/*

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 * SPDX-License-Identifier: ISC

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 *

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 * Copyright (c) 2018 Todd C. Miller <[email protected]>

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 *

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 * Permission to use, copy, modify, and distribute this software for any

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 * purpose with or without fee is hereby granted, provided that the above

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 * copyright notice and this permission notice appear in all copies.

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 *

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 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

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 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

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 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

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 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

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 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

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 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

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 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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 *

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 * Sponsored in part by the Defense Advanced Research Projects

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 * Agency (DARPA) and Air Force Research Laboratory, Air Force

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 * Materiel Command, USAF, under agreement number F39502-99-1-0512.

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 */

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#ifndef SUDO_RAND_H

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#define SUDO_RAND_H

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#include <stdlib.h>	/* For arc4random() on systems that have it */

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/*

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 * All libc replacements are prefixed with "sudo_" to avoid namespace issues.

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 */

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#ifndef HAVE_ARC4RANDOM

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sudo_dso_public uint32_t sudo_arc4random(void);

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# undef arc4random

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# define arc4random() sudo_arc4random()

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#endif /* ARC4RANDOM */

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#ifndef HAVE_ARC4RANDOM_BUF

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sudo_dso_public void sudo_arc4random_buf(void *buf, size_t n);

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# undef arc4random_buf

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# define arc4random_buf(a, b) sudo_arc4random_buf((a), (b))

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#endif /* ARC4RANDOM_BUF */

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#ifndef HAVE_ARC4RANDOM_UNIFORM

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sudo_dso_public uint32_t sudo_arc4random_uniform(uint32_t upper_bound);

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# undef arc4random_uniform

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# define arc4random_uniform(_a) sudo_arc4random_uniform((_a))

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#endif /* ARC4RANDOM_UNIFORM */

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#ifndef HAVE_GETENTROPY

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/* Note: not exported by libutil. */

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int sudo_getentropy(void *buf, size_t buflen);

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# undef getentropy

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# define getentropy(_a, _b) sudo_getentropy((_a), (_b))

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#endif /* HAVE_GETENTROPY */

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#endif /* SUDO_RAND_H */

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