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stdlib.h revision 1.70
      1 /*	$NetBSD: stdlib.h,v 1.70 2005/06/11 22:58:42 christos 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_
     47 typedef	_BSD_SIZE_T_	size_t;
     48 #undef	_BSD_SIZE_T_
     49 #endif
     50 
     51 #ifdef	_BSD_WCHAR_T_
     52 typedef	_BSD_WCHAR_T_	wchar_t;
     53 #undef	_BSD_WCHAR_T_
     54 #endif
     55 
     56 typedef struct {
     57 	int quot;		/* quotient */
     58 	int rem;		/* remainder */
     59 } div_t;
     60 
     61 typedef 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))
     69 typedef 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)
     78 typedef 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 
     92 extern size_t __mb_cur_max;
     93 #define	MB_CUR_MAX	__mb_cur_max
     94 
     95 __BEGIN_DECLS
     96 __dead	 void _Exit(int) __attribute__((__noreturn__));
     97 __dead	 void abort(void) __attribute__((__noreturn__));
     98 __pure	 int abs(int);
     99 int	 atexit(void (*)(void));
    100 double	 atof(const char *);
    101 int	 atoi(const char *);
    102 long	 atol(const char *);
    103 #ifndef __BSEARCH_DECLARED
    104 #define __BSEARCH_DECLARED
    105 /* also in search.h */
    106 void	*bsearch(const void *, const void *, size_t, size_t,
    107     int (*)(const void *, const void *));
    108 #endif /* __BSEARCH_DECLARED */
    109 void	*calloc(size_t, size_t);
    110 div_t	 div(int, int);
    111 __dead	 void exit(int) __attribute__((__noreturn__));
    112 void	 free(void *);
    113 __aconst char *getenv(const char *);
    114 __pure long
    115 	 labs(long);
    116 ldiv_t	 ldiv(long, long);
    117 void	*malloc(size_t);
    118 void	 qsort(void *, size_t, size_t, int (*)(const void *, const void *));
    119 int	 rand(void);
    120 void	*realloc(void *, size_t);
    121 void	 srand(unsigned);
    122 double	 strtod(const char * __restrict, char ** __restrict);
    123 long	 strtol(const char * __restrict, char ** __restrict, int);
    124 unsigned long
    125 	 strtoul(const char * __restrict, char ** __restrict, int);
    126 int	 system(const char *);
    127 
    128 /* These are currently just stubs. */
    129 int	 mblen(const char *, size_t);
    130 size_t	 mbstowcs(wchar_t * __restrict, const char * __restrict, size_t);
    131 int	 wctomb(char *, wchar_t);
    132 int	 mbtowc(wchar_t * __restrict, const char * __restrict, size_t);
    133 size_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)
    144 int	 rand_r(unsigned int *);
    145 #endif
    146 
    147 
    148 /*
    149  * X/Open Portability Guide >= Issue 4
    150  */
    151 #if (_XOPEN_SOURCE - 0) >= 4 || defined(_NETBSD_SOURCE)
    152 double	 drand48(void);
    153 double	 erand48(unsigned short[3]);
    154 long	 jrand48(unsigned short[3]);
    155 void	 lcong48(unsigned short[7]);
    156 long	 lrand48(void);
    157 long	 mrand48(void);
    158 long	 nrand48(unsigned short[3]);
    159 unsigned short *
    160 	 seed48(unsigned short[3]);
    161 void	 srand48(long);
    162 
    163 int	 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)
    172 long	 a64l(const char *);
    173 char	*l64a(long);
    174 
    175 char	*initstate(unsigned long, char *, size_t);
    176 long	 random(void);
    177 char	*setstate(char *);
    178 void	 srandom(unsigned long);
    179 
    180 char	*mkdtemp(char *);
    181 int	 mkstemp(char *);
    182 char	*mktemp(char *)
    183 #ifdef __MKTEMP_OK__
    184 	__RENAME(_mktemp)
    185 #endif
    186 	;
    187 
    188 int	 setkey(const char *);
    189 
    190 char	*realpath(const char *, char *);
    191 
    192 int	 ttyslot(void);
    193 
    194 void	*valloc(size_t);		/* obsoleted by malloc() */
    195 
    196 int	 grantpt(int);
    197 int	 unlockpt(int);
    198 char	*ptsname(int);
    199 #endif
    200 
    201 /*
    202  * ISO C99
    203  */
    204 #if defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \
    205     defined(_NETBSD_SOURCE)
    206 /* LONGLONG */
    207 long long int	atoll(const char *);
    208 /* LONGLONG */
    209 long long int	llabs(long long int);
    210 /* LONGLONG */
    211 lldiv_t		lldiv(long long int, long long int);
    212 /* LONGLONG */
    213 long long int	strtoll(const char * __restrict, char ** __restrict, int);
    214 /* LONGLONG */
    215 unsigned long long int
    216 		strtoull(const char * __restrict, char ** __restrict, int);
    217 #endif
    218 
    219 /*
    220  * The Open Group Base Specifications, Issue 6; IEEE Std 1003.1-2001 (POSIX)
    221  */
    222 #if (_POSIX_C_SOURCE - 0) >= 200112L || (_XOPEN_SOURCE - 0) >= 600 || \
    223     defined(_NETBSD_SOURCE)
    224 int	 setenv(const char *, const char *, int);
    225 #ifdef __LIBC12_SOURCE__
    226 void	 unsetenv(const char *);
    227 int	 __unsetenv13(const char *);
    228 #else
    229 int	 unsetenv(const char *) __RENAME(__unsetenv13);
    230 #endif
    231 
    232 int	 posix_openpt(int);
    233 #endif
    234 
    235 /*
    236  * Implementation-defined extensions
    237  */
    238 #if defined(_NETBSD_SOURCE)
    239 #if defined(alloca) && (alloca == __builtin_alloca) && (__GNUC__ < 2)
    240 void	*alloca(int);     /* built-in for gcc */
    241 #else
    242 void	*alloca(size_t);
    243 #endif /* __GNUC__ */
    244 
    245 u_int32_t arc4random(void);
    246 void	 arc4random_stir(void);
    247 void	 arc4random_addrandom(u_char *, int);
    248 char	*getbsize(int *, long *);
    249 char	*cgetcap(char *, const char *, int);
    250 int	 cgetclose(void);
    251 int	 cgetent(char **, const char * const *, const char *);
    252 int	 cgetfirst(char **, const char * const *);
    253 int	 cgetmatch(const char *, const char *);
    254 int	 cgetnext(char **, const char * const *);
    255 int	 cgetnum(char *, const char *, long *);
    256 int	 cgetset(const char *);
    257 int	 cgetstr(char *, const char *, char **);
    258 int	 cgetustr(char *, const char *, char **);
    259 
    260 int	 daemon(int, int);
    261 __aconst char *devname(dev_t, mode_t);
    262 dev_t	 getdevmajor(const char *, mode_t);
    263 int	 getloadavg(double [], int);
    264 
    265 void	 cfree(void *);
    266 
    267 int	 heapsort(void *, size_t, size_t, int (*)(const void *, const void *));
    268 int	 mergesort(void *, size_t, size_t,
    269 	    int (*)(const void *, const void *));
    270 int	 radixsort(const unsigned char **, int, const unsigned char *,
    271 	    unsigned);
    272 int	 sradixsort(const unsigned char **, int, const unsigned char *,
    273 	    unsigned);
    274 
    275 void	 setproctitle(const char *, ...)
    276 	    __attribute__((__format__(__printf__, 1, 2)));
    277 const char *getprogname(void) __attribute__((__const__));
    278 void	setprogname(const char *);
    279 
    280 quad_t	 qabs(quad_t);
    281 quad_t	 strtoq(const char * __restrict, char ** __restrict, int);
    282 u_quad_t strtouq(const char * __restrict, char ** __restrict, int);
    283 
    284 	/* LONGLONG */
    285 long long strsuftoll(const char *, const char *, long long, long long);
    286 	/* LONGLONG */
    287 long long strsuftollx(const char *, const char *, long long, long long,
    288 	    		char *, size_t);
    289 
    290 int	 l64a_r(long, char *, int);
    291 
    292 size_t	shquote(const char *, char *, size_t);
    293 size_t	shquotev(int, char * const *, char *, size_t);
    294 #endif /* _NETBSD_SOURCE */
    295 #endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */
    296 
    297 #if defined(_NETBSD_SOURCE)
    298 qdiv_t	 qdiv(quad_t, quad_t);
    299 #endif
    300 __END_DECLS
    301 
    302 #endif /* !_STDLIB_H_ */
    303