stdlib.h revision 189820 
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. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 *	@(#)stdlib.h	8.5 (Berkeley) 5/19/95
34 * $FreeBSD: head/include/stdlib.h 189820 2009-03-14 19:13:30Z das $
35 */
36
37#ifndef _STDLIB_H_
38#define	_STDLIB_H_
39
40#include <sys/cdefs.h>
41#include <sys/_null.h>
42#include <sys/_types.h>
43
44#if __BSD_VISIBLE
45#ifndef _RUNE_T_DECLARED
46typedef	__rune_t	rune_t;
47#define	_RUNE_T_DECLARED
48#endif
49#endif
50
51#ifndef _SIZE_T_DECLARED
52typedef	__size_t	size_t;
53#define	_SIZE_T_DECLARED
54#endif
55
56#ifndef	__cplusplus
57#ifndef _WCHAR_T_DECLARED
58typedef	__wchar_t	wchar_t;
59#define	_WCHAR_T_DECLARED
60#endif
61#endif
62
63typedef struct {
64	int	quot;		/* quotient */
65	int	rem;		/* remainder */
66} div_t;
67
68typedef struct {
69	long	quot;
70	long	rem;
71} ldiv_t;
72
73#define	EXIT_FAILURE	1
74#define	EXIT_SUCCESS	0
75
76#define	RAND_MAX	0x7fffffff
77
78extern int __mb_cur_max;
79#define	MB_CUR_MAX	__mb_cur_max
80
81__BEGIN_DECLS
82void	 abort(void) __dead2;
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;
91div_t	 div(int, int) __pure2;
92void	 exit(int) __dead2;
93void	 free(void *);
94char	*getenv(const char *);
95long	 labs(long) __pure2;
96ldiv_t	 ldiv(long, long) __pure2;
97void	*malloc(size_t) __malloc_like;
98int	 mblen(const char *, size_t);
99size_t	 mbstowcs(wchar_t * __restrict , const char * __restrict, size_t);
100int	 mbtowc(wchar_t * __restrict, const char * __restrict, size_t);
101void	 qsort(void *, size_t, size_t,
102	    int (*)(const void *, const void *));
103int	 rand(void);
104void	*realloc(void *, size_t);
105void	 srand(unsigned);
106double	 strtod(const char * __restrict, char ** __restrict);
107float	 strtof(const char * __restrict, char ** __restrict);
108long	 strtol(const char * __restrict, char ** __restrict, int);
109long double
110	 strtold(const char * __restrict, char ** __restrict);
111unsigned long
112	 strtoul(const char * __restrict, char ** __restrict, int);
113int	 system(const char *);
114int	 wctomb(char *, wchar_t);
115size_t	 wcstombs(char * __restrict, const wchar_t * __restrict, size_t);
116
117/*
118 * Functions added in C99 which we make conditionally available in the
119 * BSD^C89 namespace if the compiler supports `long long'.
120 * The #if test is more complicated than it ought to be because
121 * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long'
122 * is not supported in the compilation environment (which therefore means
123 * that it can't really be ISO C99).
124 *
125 * (The only other extension made by C99 in thie header is _Exit().)
126 */
127#if __ISO_C_VISIBLE >= 1999
128#ifdef __LONG_LONG_SUPPORTED
129/* LONGLONG */
130typedef struct {
131	long long quot;
132	long long rem;
133} lldiv_t;
134
135/* LONGLONG */
136long long
137	 atoll(const char *);
138/* LONGLONG */
139long long
140	 llabs(long long) __pure2;
141/* LONGLONG */
142lldiv_t	 lldiv(long long, long long) __pure2;
143/* LONGLONG */
144long long
145	 strtoll(const char * __restrict, char ** __restrict, int);
146/* LONGLONG */
147unsigned long long
148	 strtoull(const char * __restrict, char ** __restrict, int);
149#endif /* __LONG_LONG_SUPPORTED */
150
151void	 _Exit(int) __dead2;
152#endif /* __ISO_C_VISIBLE >= 1999 */
153
154/*
155 * Extensions made by POSIX relative to C.  We don't know yet which edition
156 * of POSIX made these extensions, so assume they've always been there until
157 * research can be done.
158 */
159#if __POSIX_VISIBLE /* >= ??? */
160int	 posix_memalign(void **, size_t, size_t); /* (ADV) */
161int	 rand_r(unsigned *);			/* (TSF) */
162int	 setenv(const char *, const char *, int);
163int	 unsetenv(const char *);
164#endif
165
166#if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE
167int	 getsubopt(char **, char *const *, char **);
168#ifndef _MKDTEMP_DECLARED
169char	*mkdtemp(char *);
170#define	_MKDTEMP_DECLARED
171#endif
172#ifndef _MKSTEMP_DECLARED
173int	 mkstemp(char *);
174#define	_MKSTEMP_DECLARED
175#endif
176#endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */
177
178/*
179 * The only changes to the XSI namespace in revision 6 were the deletion
180 * of the ttyslot() and valloc() functions, which FreeBSD never declared
181 * in this header.  For revision 7, ecvt(), fcvt(), and gcvt(), which
182 * FreeBSD also does not have, and mktemp(), are to be deleted.
183 */
184#if __XSI_VISIBLE
185/* XXX XSI requires pollution from <sys/wait.h> here.  We'd rather not. */
186long	 a64l(const char *);
187double	 drand48(void);
188/* char	*ecvt(double, int, int * __restrict, int * __restrict); */
189double	 erand48(unsigned short[3]);
190/* char	*fcvt(double, int, int * __restrict, int * __restrict); */
191/* char	*gcvt(double, int, int * __restrict, int * __restrict); */
192int	 grantpt(int);
193char	*initstate(unsigned long /* XSI requires u_int */, char *, long);
194long	 jrand48(unsigned short[3]);
195char	*l64a(long);
196void	 lcong48(unsigned short[7]);
197long	 lrand48(void);
198#if !defined(_MKTEMP_DECLARED) && (__BSD_VISIBLE || __XSI_VISIBLE <= 600)
199char	*mktemp(char *);
200#define	_MKTEMP_DECLARED
201#endif
202long	 mrand48(void);
203long	 nrand48(unsigned short[3]);
204int	 posix_openpt(int);
205char	*ptsname(int);
206int	 putenv(char *);
207long	 random(void);
208char	*realpath(const char *, char resolved_path[]);
209unsigned short
210	*seed48(unsigned short[3]);
211#ifndef _SETKEY_DECLARED
212int	 setkey(const char *);
213#define	_SETKEY_DECLARED
214#endif
215char	*setstate(/* const */ char *);
216void	 srand48(long);
217void	 srandom(unsigned long);
218int	 unlockpt(int);
219#endif /* __XSI_VISIBLE */
220
221#if __BSD_VISIBLE
222extern const char *_malloc_options;
223extern void (*_malloc_message)(const char *, const char *, const char *,
224	    const char *);
225
226/*
227 * The alloca() function can't be implemented in C, and on some
228 * platforms it can't be implemented at all as a callable function.
229 * The GNU C compiler provides a built-in alloca() which we can use;
230 * in all other cases, provide a prototype, mainly to pacify various
231 * incarnations of lint.  On platforms where alloca() is not in libc,
232 * programs which use it will fail to link when compiled with non-GNU
233 * compilers.
234 */
235#if __GNUC__ >= 2 || defined(__INTEL_COMPILER)
236#undef  alloca	/* some GNU bits try to get cute and define this on their own */
237#define alloca(sz) __builtin_alloca(sz)
238#elif defined(lint)
239void	*alloca(size_t);
240#endif
241
242void	 abort2(const char *, int, void **) __dead2;
243__uint32_t
244	 arc4random(void);
245void	 arc4random_addrandom(unsigned char *, int);
246void	 arc4random_buf(void *, size_t);
247void	 arc4random_stir(void);
248__uint32_t
249	 arc4random_uniform(__uint32_t);
250char	*getbsize(int *, long *);
251					/* getcap(3) functions */
252char	*cgetcap(char *, const char *, int);
253int	 cgetclose(void);
254int	 cgetent(char **, char **, const char *);
255int	 cgetfirst(char **, char **);
256int	 cgetmatch(const char *, const char *);
257int	 cgetnext(char **, char **);
258int	 cgetnum(char *, const char *, long *);
259int	 cgetset(const char *);
260int	 cgetstr(char *, const char *, char **);
261int	 cgetustr(char *, const char *, char **);
262
263int	 daemon(int, int);
264char	*devname(__dev_t, __mode_t);
265char 	*devname_r(__dev_t, __mode_t, char *, int);
266char	*fdevname(int);
267char 	*fdevname_r(int, char *, int);
268int	 getloadavg(double [], int);
269__const char *
270	 getprogname(void);
271
272int	 heapsort(void *, size_t, size_t, int (*)(const void *, const void *));
273int	 l64a_r(long, char *, int);
274int	 mergesort(void *, size_t, size_t, int (*)(const void *, const void *));
275void	 qsort_r(void *, size_t, size_t, void *,
276	    int (*)(void *, const void *, const void *));
277int	 radixsort(const unsigned char **, int, const unsigned char *,
278	    unsigned);
279void    *reallocf(void *, size_t);
280int	 rpmatch(const char *);
281void	 setprogname(const char *);
282int	 sradixsort(const unsigned char **, int, const unsigned char *,
283	    unsigned);
284void	 sranddev(void);
285void	 srandomdev(void);
286long long
287	strtonum(const char *, long long, long long, const char **);
288
289/* Deprecated interfaces, to be removed in FreeBSD 6.0. */
290__int64_t
291	 strtoq(const char *, char **, int);
292__uint64_t
293	 strtouq(const char *, char **, int);
294
295extern char *suboptarg;			/* getsubopt(3) external variable */
296#endif /* __BSD_VISIBLE */
297__END_DECLS
298
299#endif /* !_STDLIB_H_ */
300