libbsd/include/bsd/stdlib.h
Faidon Liambotis 01f0d1ea1e Add recallocarray() and freezero() from OpenBSD
Add recallocarray(), introduced in OpenBSD 6.1, and freezero(),
introduced in OpenBSD 6.2. The former is imported as-is from OpenBSD,
while the latter is the non-malloc-internal branch of the same code (and
also the OpenSSH portable variant).

Both of these originated in OpenBSD, but have also been implemented by
IllumOS, cf. https://www.illumos.org/issues/8546

Documentation for these functions is in malloc(3) upstream, the relevant
parts of which were previously imported in reallocarray(3bsd). Update
reallocarray(3bsd) with the changes that were introduced since, and add
the relevant bits for recallocarray() and freezero(), plus aliases.

[guillem@hadrons.org: Update copyright in COPYING. ]

Closes: !10
Signed-off-by: Guillem Jover <guillem@hadrons.org>
2021-01-01 18:18:51 +01:00

88 lines
3.1 KiB
C

/*
* Copyright © 2005 Aurelien Jarno
* Copyright © 2006 Robert Millan
* Copyright © 2008-2011 Guillem Jover <guillem@hadrons.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef LIBBSD_OVERLAY
#include_next <stdlib.h>
#else
#include <stdlib.h>
#endif
/* For compatibility with NetBSD, which defines humanize_number here. */
#ifdef LIBBSD_OVERLAY
#include <libutil.h>
#else
#include <bsd/libutil.h>
#endif
#ifndef LIBBSD_STDLIB_H
#define LIBBSD_STDLIB_H
#ifdef LIBBSD_OVERLAY
#include <sys/cdefs.h>
#else
#include <bsd/sys/cdefs.h>
#endif
#include <sys/stat.h>
#include <stdint.h>
__BEGIN_DECLS
uint32_t arc4random(void);
void arc4random_stir(void);
void arc4random_addrandom(unsigned char *dat, int datlen);
void arc4random_buf(void *_buf, size_t n);
uint32_t arc4random_uniform(uint32_t upper_bound);
int dehumanize_number(const char *str, int64_t *size);
const char *getprogname(void);
void setprogname(const char *);
int heapsort(void *, size_t, size_t, int (*)(const void *, const void *));
int mergesort(void *base, size_t nmemb, size_t size,
int (*cmp)(const void *, const void *));
int radixsort(const unsigned char **base, int nmemb,
const unsigned char *table, unsigned endbyte);
int sradixsort(const unsigned char **base, int nmemb,
const unsigned char *table, unsigned endbyte);
void *reallocf(void *ptr, size_t size);
#if !defined(__GLIBC__) || \
(defined(__GLIBC__) && (!__GLIBC_PREREQ(2, 26) || !defined(_GNU_SOURCE)))
void *reallocarray(void *ptr, size_t nmemb, size_t size);
#endif
void *recallocarray(void *ptr, size_t oldnmemb, size_t nmemb, size_t size);
void freezero(void *ptr, size_t size);
long long strtonum(const char *nptr, long long minval, long long maxval,
const char **errstr);
char *getbsize(int *headerlenp, long *blocksizep);
__END_DECLS
#endif