1/*	$OpenBSD: stdlib.h,v 1.77 2024/03/01 21:30:40 millert Exp $	*/
2/*	$NetBSD: stdlib.h,v 1.25 1995/12/27 21:19:08 jtc Exp $	*/
3
4/*-
5 * Copyright (c) 1990 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 *	@(#)stdlib.h	5.13 (Berkeley) 6/4/91
33 */
34
35#ifndef _STDLIB_H_
36#define _STDLIB_H_
37
38#include <sys/cdefs.h>
39#include <sys/_null.h>
40#include <machine/_types.h>
41#if __BSD_VISIBLE	/* for quad_t, etc. (XXX - use protected types) */
42#include <sys/types.h>
43#endif
44
45#ifndef	_SIZE_T_DEFINED_
46#define	_SIZE_T_DEFINED_
47typedef	__size_t	size_t;
48#endif
49
50/* in C++, wchar_t is a built-in type */
51#if !defined(_WCHAR_T_DEFINED_) && !defined(__cplusplus)
52#define _WCHAR_T_DEFINED_
53typedef	__wchar_t	wchar_t;
54#endif
55
56typedef struct {
57	int quot;		/* quotient */
58	int rem;		/* remainder */
59} div_t;
60
61typedef struct {
62	long quot;		/* quotient */
63	long rem;		/* remainder */
64} ldiv_t;
65
66#if __ISO_C_VISIBLE >= 1999
67typedef struct {
68	long long quot;		/* quotient */
69	long long rem;		/* remainder */
70} lldiv_t;
71#endif
72
73#if __BSD_VISIBLE
74typedef struct {
75	quad_t quot;		/* quotient */
76	quad_t rem;		/* remainder */
77} qdiv_t;
78#endif
79
80#define	EXIT_FAILURE	1
81#define	EXIT_SUCCESS	0
82
83#define	RAND_MAX	0x7fffffff
84
85#define	MB_CUR_MAX	__mb_cur_max()
86
87/*
88 * Some header files may define an abs macro.
89 * If defined, undef it to prevent a syntax error and issue a warning.
90 */
91#ifdef abs
92#undef abs
93#warning abs macro collides with abs() prototype, undefining
94#endif
95
96__BEGIN_DECLS
97__dead void	 abort(void);
98int	 abs(int);
99int	 atexit(void (*)(void));
100double	 atof(const char *);
101int	 atoi(const char *);
102long	 atol(const char *);
103void	*bsearch(const void *, const void *, size_t, size_t,
104	    int (*)(const void *, const void *));
105void	*calloc(size_t, size_t);
106div_t	 div(int, int);
107__dead void	 exit(int);
108__dead void	 _Exit(int);
109void	 free(void *);
110char	*getenv(const char *);
111long	 labs(long);
112ldiv_t	 ldiv(long, long);
113void	*malloc(size_t);
114#if __BSD_VISIBLE
115void	freezero(void *, size_t)
116		 __attribute__ ((__bounded__(__buffer__,1,2)));
117void	*calloc_conceal(size_t, size_t);
118void	*malloc_conceal(size_t);
119void	*reallocarray(void *, size_t, size_t);
120void	*recallocarray(void *, size_t, size_t, size_t);
121#endif /* __BSD_VISIBLE */
122void	 qsort(void *, size_t, size_t, int (*)(const void *, const void *));
123int	 rand(void);
124void	*realloc(void *, size_t);
125void	 srand(unsigned);
126void	 srand_deterministic(unsigned);
127double	 strtod(const char *__restrict, char **__restrict);
128float	 strtof(const char *__restrict, char **__restrict);
129long	 strtol(const char *__restrict, char **__restrict, int);
130long double
131	 strtold(const char *__restrict, char **__restrict);
132unsigned long
133	 strtoul(const char *__restrict, char **__restrict, int);
134int	 system(const char *);
135
136size_t	 __mb_cur_max(void);
137int	 mblen(const char *, size_t);
138size_t	 mbstowcs(wchar_t *, const char *, size_t);
139int	 wctomb(char *, wchar_t);
140int	 mbtowc(wchar_t *, const char *, size_t);
141size_t	 wcstombs(char *, const wchar_t *, size_t);
142
143/*
144 * IEEE Std 1003.1c-95, also adopted by X/Open CAE Spec Issue 5 Version 2
145 */
146#if __BSD_VISIBLE || __POSIX_VISIBLE >= 199506 || defined(_REENTRANT)
147int	 rand_r(unsigned int *);
148#endif
149
150#if __BSD_VISIBLE || __XPG_VISIBLE >= 400
151double	 drand48(void);
152double	 erand48(unsigned short[3]);
153long	 jrand48(unsigned short[3]);
154void	 lcong48(unsigned short[7]);
155void	 lcong48_deterministic(unsigned short[7]);
156long	 lrand48(void);
157long	 mrand48(void);
158long	 nrand48(unsigned short[3]);
159unsigned short *seed48(unsigned short[3]);
160unsigned short *seed48_deterministic(unsigned short[3]);
161void	 srand48(long);
162void	 srand48_deterministic(long);
163
164int	 putenv(char *);
165#endif
166
167/*
168 * XSI functions marked LEGACY in IEEE Std 1003.1-2001 (POSIX) and
169 * removed in IEEE Std 1003.1-2008
170 */
171#if __BSD_VISIBLE || __XPG_VISIBLE < 700
172char	*ecvt(double, int, int *, int *);
173char	*fcvt(double, int, int *, int *);
174char	*gcvt(double, int, char *);
175#if __BSD_VISIBLE || __XPG_VISIBLE >= 420
176char	*mktemp(char *);
177#endif
178#endif	/* __BSD_VISIBLE || __XPG_VISIBLE < 700 */
179
180#if __BSD_VISIBLE || __XPG_VISIBLE >= 420
181long	 a64l(const char *);
182char	*l64a(long);
183
184char	*initstate(unsigned int, char *, size_t)
185		__attribute__((__bounded__ (__string__,2,3)));
186long	 random(void);
187char	*setstate(char *);
188void	 srandom(unsigned int);
189void	 srandom_deterministic(unsigned int);
190
191char	*realpath(const char *, char *)
192		__attribute__((__bounded__ (__minbytes__,2,1024)));
193
194/*
195 * XSI functions marked LEGACY in XPG5 and removed in IEEE Std 1003.1-2001
196 */
197#if __BSD_VISIBLE || __XPG_VISIBLE < 600
198int	 ttyslot(void);
199void	*valloc(size_t);		/* obsoleted by malloc() */
200#endif
201#endif /* __BSD_VISIBLE || __XPG_VISIBLE >= 420 */
202
203/*
204 * 4.4BSD, then XSI in XPG4.2, then added to POSIX base in IEEE Std 1003.1-2008
205 */
206#if __BSD_VISIBLE || __XPG_VISIBLE >= 420 || __POSIX_VISIBLE >= 200809
207int	 mkstemp(char *);
208#endif
209
210/*
211 * ISO C99
212 */
213#if __ISO_C_VISIBLE >= 1999
214long long
215	 atoll(const char *);
216long long
217	 llabs(long long);
218lldiv_t
219	 lldiv(long long, long long);
220long long
221	 strtoll(const char *__restrict, char **__restrict, int);
222unsigned long long
223	 strtoull(const char *__restrict, char **__restrict, int);
224#endif
225
226#if __ISO_C_VISIBLE >= 2011
227void *
228	aligned_alloc(size_t, size_t);
229#endif
230
231/*
232 * The Open Group Base Specifications, Issue 6; IEEE Std 1003.1-2001 (POSIX)
233 */
234#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200112
235int	 posix_memalign(void **, size_t, size_t);
236int	 setenv(const char *, const char *, int);
237int	 unsetenv(const char *);
238#endif
239#if __XPG_VISIBLE >= 420 || __POSIX_VISIBLE >= 200112
240char	*ptsname(int);
241int	 grantpt(int);
242int	 unlockpt(int);
243#endif
244#if __POSIX_VISIBLE >= 200112
245int	 posix_openpt(int);
246#endif
247
248/*
249 * The Open Group Base Specifications, Issue 7; IEEE Std 1003.1-2008 (POSIX)
250 */
251#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200809
252char	*mkdtemp(char *);
253#endif
254
255#if __XPG_VISIBLE >= 420 || __POSIX_VISIBLE >= 200809
256int     getsubopt(char **, char * const *, char **);
257#endif
258
259/*
260 * The Open Group Base Specifications, post-Issue 7
261 */
262#if __BSD_VISIBLE
263int	mkostemp(char *, int);
264#endif
265
266#if __BSD_VISIBLE
267#define alloca(n) __builtin_alloca(n)
268
269char	*getbsize(int *, long *);
270char	*cgetcap(char *, const char *, int);
271int	 cgetclose(void);
272int	 cgetent(char **, char **, const char *);
273int	 cgetfirst(char **, char **);
274int	 cgetmatch(char *, const char *);
275int	 cgetnext(char **, char **);
276int	 cgetnum(char *, const char *, long *);
277int	 cgetset(const char *);
278int	 cgetusedb(int);
279int	 cgetstr(char *, const char *, char **);
280int	 cgetustr(char *, const char *, char **);
281
282int	 daemon(int, int);
283char	*devname(dev_t, mode_t);
284int	 getloadavg(double [], int);
285
286const char *
287	getprogname(void);
288void	setprogname(const char *);
289
290extern	 char *suboptarg;		/* getsubopt(3) external variable */
291
292char *	 mkdtemps(char *, int);
293int	 mkstemps(char *, int);
294int	 mkostemps(char *, int, int);
295
296int	 heapsort(void *, size_t, size_t, int (*)(const void *, const void *));
297int	 mergesort(void *, size_t, size_t, int (*)(const void *, const void *));
298int	 radixsort(const unsigned char **, int, const unsigned char *,
299	    unsigned);
300int	 sradixsort(const unsigned char **, int, const unsigned char *,
301	    unsigned);
302
303void	 srandomdev(void);
304long long
305	 strtonum(const char *, long long, long long, const char **);
306
307void	 setproctitle(const char *, ...)
308	__attribute__((__format__ (__printf__, 1, 2)));
309
310quad_t	 qabs(quad_t);
311qdiv_t	 qdiv(quad_t, quad_t);
312quad_t	 strtoq(const char *__restrict, char **__restrict, int);
313u_quad_t strtouq(const char *__restrict, char **__restrict, int);
314
315uint32_t arc4random(void);
316uint32_t arc4random_uniform(uint32_t);
317void arc4random_buf(void *, size_t)
318	__attribute__((__bounded__ (__buffer__,1,2)));
319
320#endif /* __BSD_VISIBLE */
321
322__END_DECLS
323
324#endif /* _STDLIB_H_ */
325