stdlib.h revision 1.91 
1/*	$NetBSD: stdlib.h,v 1.91 2010/02/25 18:37:12 joerg Exp $	*/
2
3/*-
4 * Copyright (c) 1990, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 *	@(#)stdlib.h	8.5 (Berkeley) 5/19/95
32 */
33
34#ifndef _STDLIB_H_
35#define _STDLIB_H_
36
37#include <sys/cdefs.h>
38#include <sys/featuretest.h>
39
40#if defined(_NETBSD_SOURCE)
41#include <sys/types.h>		/* for quad_t, etc. */
42#endif
43
44#include <machine/ansi.h>
45
46#ifdef	_BSD_SIZE_T_
47typedef	_BSD_SIZE_T_	size_t;
48#undef	_BSD_SIZE_T_
49#endif
50
51#if defined(_BSD_WCHAR_T_) && !defined(__cplusplus)
52typedef	_BSD_WCHAR_T_	wchar_t;
53#undef	_BSD_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 !defined(_ANSI_SOURCE) && \
67    (defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \
68     defined(_NETBSD_SOURCE))
69typedef struct {
70	/* LONGLONG */
71	long long int quot;	/* quotient */
72	/* LONGLONG */
73	long long int rem;	/* remainder */
74} lldiv_t;
75#endif
76
77#if defined(_NETBSD_SOURCE)
78typedef struct {
79	quad_t quot;		/* quotient */
80	quad_t rem;		/* remainder */
81} qdiv_t;
82#endif
83
84
85#include <sys/null.h>
86
87#define	EXIT_FAILURE	1
88#define	EXIT_SUCCESS	0
89
90#define	RAND_MAX	0x7fffffff
91
92extern size_t __mb_cur_max;
93#define	MB_CUR_MAX	__mb_cur_max
94
95__BEGIN_DECLS
96__dead	 void _Exit(int);
97__dead	 void abort(void);
98__pure	 int abs(int);
99int	 atexit(void (*)(void));
100double	 atof(const char *);
101int	 atoi(const char *);
102long	 atol(const char *);
103#ifndef __BSEARCH_DECLARED
104#define __BSEARCH_DECLARED
105/* also in search.h */
106void	*bsearch(const void *, const void *, size_t, size_t,
107    int (*)(const void *, const void *));
108#endif /* __BSEARCH_DECLARED */
109void	*calloc(size_t, size_t);
110div_t	 div(int, int);
111__dead	 void exit(int);
112void	 free(void *);
113__aconst char *getenv(const char *);
114__pure long
115	 labs(long);
116ldiv_t	 ldiv(long, long);
117void	*malloc(size_t);
118void	 qsort(void *, size_t, size_t, int (*)(const void *, const void *));
119int	 rand(void);
120void	*realloc(void *, size_t);
121void	 srand(unsigned);
122double	 strtod(const char * __restrict, char ** __restrict);
123long	 strtol(const char * __restrict, char ** __restrict, int);
124unsigned long
125	 strtoul(const char * __restrict, char ** __restrict, int);
126int	 system(const char *);
127
128/* These are currently just stubs. */
129int	 mblen(const char *, size_t);
130size_t	 mbstowcs(wchar_t * __restrict, const char * __restrict, size_t);
131int	 wctomb(char *, wchar_t);
132int	 mbtowc(wchar_t * __restrict, const char * __restrict, size_t);
133size_t	 wcstombs(char * __restrict, const wchar_t * __restrict, size_t);
134
135#if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
136    defined(_NETBSD_SOURCE)
137
138
139/*
140 * IEEE Std 1003.1c-95, also adopted by X/Open CAE Spec Issue 5 Version 2
141 */
142#if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
143    defined(_REENTRANT) || defined(_NETBSD_SOURCE)
144int	 rand_r(unsigned int *);
145#endif
146
147
148/*
149 * X/Open Portability Guide >= Issue 4
150 */
151#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
152double	 drand48(void);
153double	 erand48(unsigned short[3]);
154long	 jrand48(unsigned short[3]);
155void	 lcong48(unsigned short[7]);
156long	 lrand48(void);
157long	 mrand48(void);
158long	 nrand48(unsigned short[3]);
159unsigned short *
160	 seed48(unsigned short[3]);
161void	 srand48(long);
162
163int	 putenv(const char *);
164#endif
165
166
167/*
168 * X/Open Portability Guide >= Issue 4 Version 2
169 */
170#if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
171    (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
172long	 a64l(const char *);
173char	*l64a(long);
174
175char	*initstate(unsigned long, char *, size_t);
176long	 random(void);
177char	*setstate(char *);
178void	 srandom(unsigned long);
179#ifdef _NETBSD_SOURCE
180#define	RANDOM_MAX	0x7fffffff	/* (((long)1 << 31) - 1) */
181#endif
182
183char	*mkdtemp(char *);
184int	 mkstemp(char *);
185char	*mktemp(char *)
186#ifdef __MKTEMP_OK__
187	__RENAME(_mktemp)
188#endif
189	;
190
191int	 setkey(const char *);
192
193char	*realpath(const char *, char *);
194
195int	 ttyslot(void);
196
197void	*valloc(size_t);		/* obsoleted by malloc() */
198
199int	 grantpt(int);
200int	 unlockpt(int);
201char	*ptsname(int);
202#endif
203
204/*
205 * ISO C99
206 */
207#if defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \
208    defined(_NETBSD_SOURCE)
209/* LONGLONG */
210long long int	atoll(const char *);
211/* LONGLONG */
212long long int	llabs(long long int);
213/* LONGLONG */
214lldiv_t		lldiv(long long int, long long int);
215/* LONGLONG */
216long long int	strtoll(const char * __restrict, char ** __restrict, int);
217/* LONGLONG */
218unsigned long long int
219		strtoull(const char * __restrict, char ** __restrict, int);
220float		strtof(const char * __restrict, char ** __restrict);
221long double	strtold(const char * __restrict, char ** __restrict);
222#endif
223
224/*
225 * The Open Group Base Specifications, Issue 6; IEEE Std 1003.1-2001 (POSIX)
226 */
227#if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 600 || \
228    defined(_NETBSD_SOURCE)
229int	 setenv(const char *, const char *, int);
230#ifndef __LIBC12_SOURCE__
231int	 unsetenv(const char *) __RENAME(__unsetenv13);
232#endif
233
234int	 posix_openpt(int);
235int	 posix_memalign(void **, size_t, size_t);
236#endif
237
238/*
239 * Implementation-defined extensions
240 */
241#if defined(_NETBSD_SOURCE)
242#if defined(alloca) && (alloca == __builtin_alloca) && \
243	defined(__GNUC__) && (__GNUC__ < 2)
244void	*alloca(int);     /* built-in for gcc */
245#elif defined(__PCC__)
246#define alloca(size) __builtin_alloca(size)
247#else
248void	*alloca(size_t);
249#endif /* __GNUC__ */
250
251uint32_t arc4random(void);
252void	 arc4random_stir(void);
253void	 arc4random_addrandom(u_char *, int);
254char	*getbsize(int *, long *);
255char	*cgetcap(char *, const char *, int);
256int	 cgetclose(void);
257int	 cgetent(char **, const char * const *, const char *);
258int	 cgetfirst(char **, const char * const *);
259int	 cgetmatch(const char *, const char *);
260int	 cgetnext(char **, const char * const *);
261int	 cgetnum(char *, const char *, long *);
262int	 cgetset(const char *);
263int	 cgetstr(char *, const char *, char **);
264int	 cgetustr(char *, const char *, char **);
265void	 csetexpandtc(int);
266
267int	 daemon(int, int);
268#ifndef __LIBC12_SOURCE__
269__aconst char *devname(dev_t, mode_t) __RENAME(__devname50);
270#endif
271
272#define	HN_DECIMAL		0x01
273#define	HN_NOSPACE		0x02
274#define	HN_B			0x04
275#define	HN_DIVISOR_1000		0x08
276
277#define	HN_GETSCALE		0x10
278#define	HN_AUTOSCALE		0x20
279
280int	 humanize_number(char *, size_t, int64_t, const char *, int, int);
281int	 dehumanize_number(const char *, int64_t *);
282
283devmajor_t getdevmajor(const char *, mode_t);
284int	 getloadavg(double [], int);
285
286int	 getenv_r(const char *, char *, size_t);
287
288void	 cfree(void *);
289
290int	 heapsort(void *, size_t, size_t, int (*)(const void *, const void *));
291int	 mergesort(void *, size_t, size_t,
292	    int (*)(const void *, const void *));
293int	 radixsort(const unsigned char **, int, const unsigned char *,
294	    unsigned);
295int	 sradixsort(const unsigned char **, int, const unsigned char *,
296	    unsigned);
297
298void	 mi_vector_hash(const void * __restrict, size_t, uint32_t,
299	    uint32_t[3]);
300
301void	 setproctitle(const char *, ...)
302	    __printflike(1, 2);
303const char *getprogname(void) __attribute__((const));
304void	setprogname(const char *);
305
306quad_t	 qabs(quad_t);
307quad_t	 strtoq(const char * __restrict, char ** __restrict, int);
308u_quad_t strtouq(const char * __restrict, char ** __restrict, int);
309
310	/* LONGLONG */
311long long strsuftoll(const char *, const char *, long long, long long);
312	/* LONGLONG */
313long long strsuftollx(const char *, const char *, long long, long long,
314	    		char *, size_t);
315
316int	 l64a_r(long, char *, int);
317
318size_t	shquote(const char *, char *, size_t);
319size_t	shquotev(int, char * const *, char *, size_t);
320#endif /* _NETBSD_SOURCE */
321#endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */
322
323#if defined(_NETBSD_SOURCE)
324qdiv_t	 qdiv(quad_t, quad_t);
325#endif
326__END_DECLS
327
328#endif /* !_STDLIB_H_ */
329