1/*-
2 * Copyright (c) 1990, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *	@(#)stdlib.h	8.5 (Berkeley) 5/19/95
30 * $FreeBSD$
31 */
32
33#ifndef _STDLIB_H_
34#define	_STDLIB_H_
35
36#include <sys/cdefs.h>
37#include <sys/_null.h>
38#include <sys/_types.h>
39
40#if __BSD_VISIBLE
41#ifndef _RUNE_T_DECLARED
42typedef	__rune_t	rune_t;
43#define	_RUNE_T_DECLARED
44#endif
45#endif
46
47#ifndef _SIZE_T_DECLARED
48typedef	__size_t	size_t;
49#define	_SIZE_T_DECLARED
50#endif
51
52#ifndef	__cplusplus
53#ifndef _WCHAR_T_DECLARED
54typedef	___wchar_t	wchar_t;
55#define	_WCHAR_T_DECLARED
56#endif
57#endif
58
59typedef struct {
60	int	quot;		/* quotient */
61	int	rem;		/* remainder */
62} div_t;
63
64typedef struct {
65	long	quot;
66	long	rem;
67} ldiv_t;
68
69#define	EXIT_FAILURE	1
70#define	EXIT_SUCCESS	0
71
72#define	RAND_MAX	0x7ffffffd
73
74__BEGIN_DECLS
75#ifdef _XLOCALE_H_
76#include <xlocale/_stdlib.h>
77#endif
78extern int __mb_cur_max;
79extern int ___mb_cur_max(void);
80#define	MB_CUR_MAX	((size_t)___mb_cur_max())
81
82_Noreturn void	 abort(void);
83int	 abs(int) __pure2;
84int	 atexit(void (*)(void));
85double	 atof(const char *);
86int	 atoi(const char *);
87long	 atol(const char *);
88void	*bsearch(const void *, const void *, size_t,
89	    size_t, int (*)(const void *, const void *));
90void	*calloc(size_t, size_t) __malloc_like __result_use_check
91	     __alloc_size(1) __alloc_size(2);
92div_t	 div(int, int) __pure2;
93_Noreturn void	 exit(int);
94void	 free(void *);
95char	*getenv(const char *);
96long	 labs(long) __pure2;
97ldiv_t	 ldiv(long, long) __pure2;
98void	*malloc(size_t) __malloc_like __result_use_check __alloc_size(1);
99int	 mblen(const char *, size_t);
100size_t	 mbstowcs(wchar_t * __restrict , const char * __restrict, size_t);
101int	 mbtowc(wchar_t * __restrict, const char * __restrict, size_t);
102void	 qsort(void *, size_t, size_t,
103	    int (*)(const void *, const void *));
104int	 rand(void);
105void	*realloc(void *, size_t) __result_use_check __alloc_size(2);
106void	 srand(unsigned);
107double	 strtod(const char * __restrict, char ** __restrict);
108float	 strtof(const char * __restrict, char ** __restrict);
109long	 strtol(const char * __restrict, char ** __restrict, int);
110long double
111	 strtold(const char * __restrict, char ** __restrict);
112unsigned long
113	 strtoul(const char * __restrict, char ** __restrict, int);
114int	 system(const char *);
115int	 wctomb(char *, wchar_t);
116size_t	 wcstombs(char * __restrict, const wchar_t * __restrict, size_t);
117
118/*
119 * Functions added in C99 which we make conditionally available in the
120 * BSD^C89 namespace if the compiler supports `long long'.
121 * The #if test is more complicated than it ought to be because
122 * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long'
123 * is not supported in the compilation environment (which therefore means
124 * that it can't really be ISO C99).
125 *
126 * (The only other extension made by C99 in thie header is _Exit().)
127 */
128#if __ISO_C_VISIBLE >= 1999 || defined(__cplusplus)
129#ifdef __LONG_LONG_SUPPORTED
130/* LONGLONG */
131typedef struct {
132	long long quot;
133	long long rem;
134} lldiv_t;
135
136/* LONGLONG */
137long long
138	 atoll(const char *);
139/* LONGLONG */
140long long
141	 llabs(long long) __pure2;
142/* LONGLONG */
143lldiv_t	 lldiv(long long, long long) __pure2;
144/* LONGLONG */
145long long
146	 strtoll(const char * __restrict, char ** __restrict, int);
147/* LONGLONG */
148unsigned long long
149	 strtoull(const char * __restrict, char ** __restrict, int);
150#endif /* __LONG_LONG_SUPPORTED */
151
152_Noreturn void	 _Exit(int);
153#endif /* __ISO_C_VISIBLE >= 1999 */
154
155/*
156 * If we're in a mode greater than C99, expose C11 functions.
157 */
158#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L
159void *	aligned_alloc(size_t, size_t) __malloc_like __alloc_align(1)
160	    __alloc_size(2);
161int	at_quick_exit(void (*)(void));
162_Noreturn void
163	quick_exit(int);
164#endif /* __ISO_C_VISIBLE >= 2011 */
165/*
166 * Extensions made by POSIX relative to C.
167 */
168#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE
169char	*realpath(const char * __restrict, char * __restrict);
170#endif
171#if __POSIX_VISIBLE >= 199506
172int	 rand_r(unsigned *);			/* (TSF) */
173#endif
174#if __POSIX_VISIBLE >= 200112
175int	 posix_memalign(void **, size_t, size_t) __nonnull(1); /* (ADV) */
176int	 setenv(const char *, const char *, int);
177int	 unsetenv(const char *);
178#endif
179
180#if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE
181int	 getsubopt(char **, char *const *, char **);
182#ifndef _MKDTEMP_DECLARED
183char	*mkdtemp(char *);
184#define	_MKDTEMP_DECLARED
185#endif
186#ifndef _MKSTEMP_DECLARED
187int	 mkstemp(char *);
188#define	_MKSTEMP_DECLARED
189#endif
190#endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */
191
192/*
193 * The only changes to the XSI namespace in revision 6 were the deletion
194 * of the ttyslot() and valloc() functions, which FreeBSD never declared
195 * in this header.  For revision 7, ecvt(), fcvt(), and gcvt(), which
196 * FreeBSD also does not have, and mktemp(), are to be deleted.
197 */
198#if __XSI_VISIBLE
199/* XXX XSI requires pollution from <sys/wait.h> here.  We'd rather not. */
200long	 a64l(const char *);
201double	 drand48(void);
202/* char	*ecvt(double, int, int * __restrict, int * __restrict); */
203double	 erand48(unsigned short[3]);
204/* char	*fcvt(double, int, int * __restrict, int * __restrict); */
205/* char	*gcvt(double, int, int * __restrict, int * __restrict); */
206int	 grantpt(int);
207char	*initstate(unsigned int, char *, size_t);
208long	 jrand48(unsigned short[3]);
209char	*l64a(long);
210void	 lcong48(unsigned short[7]);
211long	 lrand48(void);
212#if !defined(_MKTEMP_DECLARED) && (__BSD_VISIBLE || __XSI_VISIBLE <= 600)
213char	*mktemp(char *);
214#define	_MKTEMP_DECLARED
215#endif
216long	 mrand48(void);
217long	 nrand48(unsigned short[3]);
218int	 posix_openpt(int);
219char	*ptsname(int);
220int	 putenv(char *);
221long	 random(void);
222unsigned short
223	*seed48(unsigned short[3]);
224#ifndef _SETKEY_DECLARED
225int	 setkey(const char *);
226#define	_SETKEY_DECLARED
227#endif
228char	*setstate(/* const */ char *);
229void	 srand48(long);
230void	 srandom(unsigned int);
231int	 unlockpt(int);
232#endif /* __XSI_VISIBLE */
233
234#if __BSD_VISIBLE
235extern const char *malloc_conf;
236extern void (*malloc_message)(void *, const char *);
237
238/*
239 * The alloca() function can't be implemented in C, and on some
240 * platforms it can't be implemented at all as a callable function.
241 * The GNU C compiler provides a built-in alloca() which we can use;
242 * in all other cases, provide a prototype, mainly to pacify various
243 * incarnations of lint.  On platforms where alloca() is not in libc,
244 * programs which use it will fail to link when compiled with non-GNU
245 * compilers.
246 */
247#if __GNUC__ >= 2 || defined(__INTEL_COMPILER)
248#undef  alloca	/* some GNU bits try to get cute and define this on their own */
249#define alloca(sz) __builtin_alloca(sz)
250#elif defined(lint)
251void	*alloca(size_t);
252#endif
253
254void	 abort2(const char *, int, void **) __dead2;
255__uint32_t
256	 arc4random(void);
257void	 arc4random_addrandom(unsigned char *, int);
258void	 arc4random_buf(void *, size_t);
259void	 arc4random_stir(void);
260__uint32_t
261	 arc4random_uniform(__uint32_t);
262#ifdef __BLOCKS__
263int	 atexit_b(void (^)(void));
264void	*bsearch_b(const void *, const void *, size_t,
265	    size_t, int (^)(const void *, const void *));
266#endif
267char	*getbsize(int *, long *);
268					/* getcap(3) functions */
269char	*cgetcap(char *, const char *, int);
270int	 cgetclose(void);
271int	 cgetent(char **, char **, const char *);
272int	 cgetfirst(char **, char **);
273int	 cgetmatch(const char *, const char *);
274int	 cgetnext(char **, char **);
275int	 cgetnum(char *, const char *, long *);
276int	 cgetset(const char *);
277int	 cgetstr(char *, const char *, char **);
278int	 cgetustr(char *, const char *, char **);
279
280int	 daemon(int, int);
281char	*devname(__dev_t, __mode_t);
282char	*devname_r(__dev_t, __mode_t, char *, int);
283char	*fdevname(int);
284char	*fdevname_r(int, char *, int);
285int	 getloadavg(double [], int);
286const char *
287	 getprogname(void);
288
289int	 heapsort(void *, size_t, size_t, int (*)(const void *, const void *));
290#ifdef __BLOCKS__
291int	 heapsort_b(void *, size_t, size_t, int (^)(const void *, const void *));
292void	 qsort_b(void *, size_t, size_t,
293	    int (^)(const void *, const void *));
294#endif
295int	 l64a_r(long, char *, int);
296int	 mergesort(void *, size_t, size_t, int (*)(const void *, const void *));
297#ifdef __BLOCKS__
298int	 mergesort_b(void *, size_t, size_t, int (^)(const void *, const void *));
299#endif
300int	 mkostemp(char *, int);
301int	 mkostemps(char *, int, int);
302void	 qsort_r(void *, size_t, size_t, void *,
303	    int (*)(void *, const void *, const void *));
304int	 radixsort(const unsigned char **, int, const unsigned char *,
305	    unsigned);
306void	*reallocarray(void *, size_t, size_t) __result_use_check __alloc_size(2)
307	    __alloc_size(3);
308void	*reallocf(void *, size_t) __alloc_size(2);
309int	 rpmatch(const char *);
310void	 setprogname(const char *);
311int	 sradixsort(const unsigned char **, int, const unsigned char *,
312	    unsigned);
313void	 sranddev(void);
314void	 srandomdev(void);
315long long
316	strtonum(const char *, long long, long long, const char **);
317
318/* Deprecated interfaces, to be removed in FreeBSD 6.0. */
319__int64_t
320	 strtoq(const char *, char **, int);
321__uint64_t
322	 strtouq(const char *, char **, int);
323
324extern char *suboptarg;			/* getsubopt(3) external variable */
325#endif /* __BSD_VISIBLE */
326__END_DECLS
327
328#endif /* !_STDLIB_H_ */
329