/*      $OpenBSD: stdlib.h,v 1.78 2024/08/03 20:09:24 guenther Exp $    */
/*      $NetBSD: stdlib.h,v 1.25 1995/12/27 21:19:08 jtc Exp $  */

/*-
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * 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. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
 *
 *      @(#)stdlib.h    5.13 (Berkeley) 6/4/91
 */

#ifndef _STDLIB_H_
#define _STDLIB_H_

#include <sys/cdefs.h>
#include <sys/_null.h>
#include <machine/_types.h>
#if __BSD_VISIBLE       /* for quad_t, etc. (XXX - use protected types) */
#include <sys/types.h>
#endif

#ifndef _SIZE_T_DEFINED_
#define _SIZE_T_DEFINED_
typedef __size_t        size_t;
#endif

/* in C++, wchar_t is a built-in type */
#if !defined(_WCHAR_T_DEFINED_) && !defined(__cplusplus)
#define _WCHAR_T_DEFINED_
typedef __wchar_t       wchar_t;
#endif

typedef struct {
        int quot;               /* quotient */
        int rem;                /* remainder */
} div_t;

typedef struct {
        long quot;              /* quotient */
        long rem;               /* remainder */
} ldiv_t;

#if __ISO_C_VISIBLE >= 1999
typedef struct {
        long long quot;         /* quotient */
        long long rem;          /* remainder */
} lldiv_t;
#endif

#if __BSD_VISIBLE
typedef struct {
        quad_t quot;            /* quotient */
        quad_t rem;             /* remainder */
} qdiv_t;
#endif

#define EXIT_FAILURE    1
#define EXIT_SUCCESS    0

#define RAND_MAX        0x7fffffff

#define MB_CUR_MAX      __mb_cur_max()

/*
 * Some header files may define an abs macro.
 * If defined, undef it to prevent a syntax error and issue a warning.
 */
#ifdef abs
#undef abs
#warning abs macro collides with abs() prototype, undefining
#endif

__BEGIN_DECLS
__dead void      abort(void);
int      abs(int);
int      atexit(void (*)(void));
double   atof(const char *);
int      atoi(const char *);
long     atol(const char *);
void    *bsearch(const void *, const void *, size_t, size_t,
            int (*)(const void *, const void *));
void    *calloc(size_t, size_t);
div_t    div(int, int);
__dead void      exit(int);
__dead void      _Exit(int);
void     free(void *);
char    *getenv(const char *);
long     labs(long);
ldiv_t   ldiv(long, long);
void    *malloc(size_t);
#if __BSD_VISIBLE
void    freezero(void *, size_t)
                 __attribute__ ((__bounded__(__buffer__,1,2)));
void    *calloc_conceal(size_t, size_t);
void    *malloc_conceal(size_t);
void    *recallocarray(void *, size_t, size_t, size_t);
#endif /* __BSD_VISIBLE */
void     qsort(void *, size_t, size_t, int (*)(const void *, const void *));
int      rand(void);
void    *realloc(void *, size_t);
void     srand(unsigned);
void     srand_deterministic(unsigned);
double   strtod(const char *__restrict, char **__restrict);
float    strtof(const char *__restrict, char **__restrict);
long     strtol(const char *__restrict, char **__restrict, int);
long double
         strtold(const char *__restrict, char **__restrict);
unsigned long
         strtoul(const char *__restrict, char **__restrict, int);
int      system(const char *);

size_t   __mb_cur_max(void);
int      mblen(const char *, size_t);
size_t   mbstowcs(wchar_t *, const char *, size_t);
int      wctomb(char *, wchar_t);
int      mbtowc(wchar_t *, const char *, size_t);
size_t   wcstombs(char *, const wchar_t *, size_t);

/*
 * IEEE Std 1003.1c-95, also adopted by X/Open CAE Spec Issue 5 Version 2
 */
#if __BSD_VISIBLE || __POSIX_VISIBLE >= 199506 || defined(_REENTRANT)
int      rand_r(unsigned int *);
#endif

#if __BSD_VISIBLE || __XPG_VISIBLE >= 400
double   drand48(void);
double   erand48(unsigned short[3]);
long     jrand48(unsigned short[3]);
void     lcong48(unsigned short[7]);
void     lcong48_deterministic(unsigned short[7]);
long     lrand48(void);
long     mrand48(void);
long     nrand48(unsigned short[3]);
unsigned short *seed48(unsigned short[3]);
unsigned short *seed48_deterministic(unsigned short[3]);
void     srand48(long);
void     srand48_deterministic(long);

int      putenv(char *);
#endif

/*
 * XSI functions marked LEGACY in IEEE Std 1003.1-2001 (POSIX) and
 * removed in IEEE Std 1003.1-2008
 */
#if __BSD_VISIBLE || __XPG_VISIBLE < 700
char    *ecvt(double, int, int *, int *);
char    *fcvt(double, int, int *, int *);
char    *gcvt(double, int, char *);
#if __BSD_VISIBLE || __XPG_VISIBLE >= 420
char    *mktemp(char *);
#endif
#endif  /* __BSD_VISIBLE || __XPG_VISIBLE < 700 */

#if __BSD_VISIBLE || __XPG_VISIBLE >= 420
long     a64l(const char *);
char    *l64a(long);

char    *initstate(unsigned int, char *, size_t)
                __attribute__((__bounded__ (__string__,2,3)));
long     random(void);
char    *setstate(char *);
void     srandom(unsigned int);
void     srandom_deterministic(unsigned int);

char    *realpath(const char *, char *)
                __attribute__((__bounded__ (__minbytes__,2,1024)));

/*
 * XSI functions marked LEGACY in XPG5 and removed in IEEE Std 1003.1-2001
 */
#if __BSD_VISIBLE || __XPG_VISIBLE < 600
int      ttyslot(void);
void    *valloc(size_t);                /* obsoleted by malloc() */
#endif
#endif /* __BSD_VISIBLE || __XPG_VISIBLE >= 420 */

/*
 * 4.4BSD, then XSI in XPG4.2, then added to POSIX base in IEEE Std 1003.1-2008
 */
#if __BSD_VISIBLE || __XPG_VISIBLE >= 420 || __POSIX_VISIBLE >= 200809
int      mkstemp(char *);
#endif

/*
 * ISO C99
 */
#if __ISO_C_VISIBLE >= 1999
long long
         atoll(const char *);
long long
         llabs(long long);
lldiv_t
         lldiv(long long, long long);
long long
         strtoll(const char *__restrict, char **__restrict, int);
unsigned long long
         strtoull(const char *__restrict, char **__restrict, int);
#endif

#if __ISO_C_VISIBLE >= 2011
void *
        aligned_alloc(size_t, size_t);
#endif

/*
 * The Open Group Base Specifications, Issue 6; IEEE Std 1003.1-2001 (POSIX)
 */
#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200112
int      posix_memalign(void **, size_t, size_t);
int      setenv(const char *, const char *, int);
int      unsetenv(const char *);
#endif
#if __XPG_VISIBLE >= 420 || __POSIX_VISIBLE >= 200112
char    *ptsname(int);
int      grantpt(int);
int      unlockpt(int);
#endif
#if __POSIX_VISIBLE >= 200112
int      posix_openpt(int);
#endif

/*
 * The Open Group Base Specifications, Issue 7; IEEE Std 1003.1-2008 (POSIX)
 */
#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200809
char    *mkdtemp(char *);
#endif

#if __XPG_VISIBLE >= 420 || __POSIX_VISIBLE >= 200809
int     getsubopt(char **, char * const *, char **);
#endif

/*
 * The Open Group Base Specifications, Issue 8
 */
#if __POSIX_VISIBLE >= 202405 || __BSD_VISIBLE
int     mkostemp(char *, int);
void    *reallocarray(void *, size_t, size_t);
#endif

#if __BSD_VISIBLE
#define alloca(n) __builtin_alloca(n)

char    *getbsize(int *, long *);
char    *cgetcap(char *, const char *, int);
int      cgetclose(void);
int      cgetent(char **, char **, const char *);
int      cgetfirst(char **, char **);
int      cgetmatch(char *, const char *);
int      cgetnext(char **, char **);
int      cgetnum(char *, const char *, long *);
int      cgetset(const char *);
int      cgetusedb(int);
int      cgetstr(char *, const char *, char **);
int      cgetustr(char *, const char *, char **);

int      daemon(int, int);
char    *devname(dev_t, mode_t);
int      getloadavg(double [], int);

const char *
        getprogname(void);
void    setprogname(const char *);

extern   char *suboptarg;               /* getsubopt(3) external variable */

char *   mkdtemps(char *, int);
int      mkstemps(char *, int);
int      mkostemps(char *, int, int);

int      heapsort(void *, size_t, size_t, int (*)(const void *, const void *));
int      mergesort(void *, size_t, size_t, int (*)(const void *, const void *));
int      radixsort(const unsigned char **, int, const unsigned char *,
            unsigned);
int      sradixsort(const unsigned char **, int, const unsigned char *,
            unsigned);

void     srandomdev(void);
long long
         strtonum(const char *, long long, long long, const char **);

void     setproctitle(const char *, ...)
        __attribute__((__format__ (__printf__, 1, 2)));

quad_t   qabs(quad_t);
qdiv_t   qdiv(quad_t, quad_t);
quad_t   strtoq(const char *__restrict, char **__restrict, int);
u_quad_t strtouq(const char *__restrict, char **__restrict, int);

uint32_t arc4random(void);
uint32_t arc4random_uniform(uint32_t);
void arc4random_buf(void *, size_t)
        __attribute__((__bounded__ (__buffer__,1,2)));

#endif /* __BSD_VISIBLE */

__END_DECLS

#endif /* _STDLIB_H_ */