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stdlib.h revision 1.67
      1 /*	$NetBSD: stdlib.h,v 1.67 2004/05/27 02:58:14 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 __P((int)) __attribute__((__noreturn__));
     97 __dead	 void abort __P((void)) __attribute__((__noreturn__));
     98 __pure	 int abs __P((int));
     99 int	 atexit __P((void (*)(void)));
    100 double	 atof __P((const char *));
    101 int	 atoi __P((const char *));
    102 long	 atol __P((const char *));
    103 #ifndef __BSEARCH_DECLARED
    104 #define __BSEARCH_DECLARED
    105 /* also in search.h */
    106 void	*bsearch __P((const void *, const void *, size_t, size_t,
    107     int (*)(const void *, const void *)));
    108 #endif /* __BSEARCH_DECLARED */
    109 void	*calloc __P((size_t, size_t));
    110 div_t	 div __P((int, int));
    111 __dead	 void exit __P((int)) __attribute__((__noreturn__));
    112 void	 free __P((void *));
    113 __aconst char *getenv __P((const char *));
    114 __pure long
    115 	 labs __P((long));
    116 ldiv_t	 ldiv __P((long, long));
    117 void	*malloc __P((size_t));
    118 void	 qsort __P((void *, size_t, size_t,
    119 	    int (*)(const void *, const void *)));
    120 int	 rand __P((void));
    121 void	*realloc __P((void *, size_t));
    122 void	 srand __P((unsigned));
    123 double	 strtod __P((const char * __restrict, char ** __restrict));
    124 long	 strtol __P((const char * __restrict, char ** __restrict, int));
    125 unsigned long
    126 	 strtoul __P((const char * __restrict, char ** __restrict, int));
    127 int	 system __P((const char *));
    128 
    129 /* These are currently just stubs. */
    130 int	 mblen __P((const char *, size_t));
    131 size_t	 mbstowcs __P((wchar_t * __restrict, const char * __restrict, size_t));
    132 int	 wctomb __P((char *, wchar_t));
    133 int	 mbtowc __P((wchar_t * __restrict, const char * __restrict, size_t));
    134 size_t	 wcstombs __P((char * __restrict, const wchar_t * __restrict, size_t));
    135 
    136 #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
    137     defined(_NETBSD_SOURCE)
    138 
    139 
    140 /*
    141  * IEEE Std 1003.1c-95, also adopted by X/Open CAE Spec Issue 5 Version 2
    142  */
    143 #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
    144     defined(_REENTRANT) || defined(_NETBSD_SOURCE)
    145 int	 rand_r __P((unsigned int *));
    146 #endif
    147 
    148 
    149 /*
    150  * X/Open Portability Guide >= Issue 4
    151  */
    152 #if (_XOPEN_SOURCE - 0) >= 4 || defined(_NETBSD_SOURCE)
    153 double	 drand48 __P((void));
    154 double	 erand48 __P((unsigned short[3]));
    155 long	 jrand48 __P((unsigned short[3]));
    156 void	 lcong48 __P((unsigned short[7]));
    157 long	 lrand48 __P((void));
    158 long	 mrand48 __P((void));
    159 long	 nrand48 __P((unsigned short[3]));
    160 unsigned short *
    161 	 seed48 __P((unsigned short[3]));
    162 void	 srand48 __P((long));
    163 
    164 int	 putenv __P((const char *));
    165 #endif
    166 
    167 
    168 /*
    169  * X/Open Portability Guide >= Issue 4 Version 2
    170  */
    171 #if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
    172     (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
    173 long	 a64l __P((const char *));
    174 char	*l64a __P((long));
    175 
    176 char	*initstate __P((unsigned long, char *, size_t));
    177 long	 random __P((void));
    178 char	*setstate __P((char *));
    179 void	 srandom __P((unsigned long));
    180 
    181 char	*mkdtemp __P((char *));
    182 int	 mkstemp __P((char *));
    183 #ifndef __AUDIT__
    184 char	*mktemp __P((char *));
    185 #endif
    186 
    187 int	 setkey __P((const char *));
    188 
    189 char	*realpath __P((const char *, char *));
    190 
    191 int	 ttyslot __P((void));
    192 
    193 void	*valloc __P((size_t));		/* obsoleted by malloc() */
    194 
    195 int	 grantpt __P((int));
    196 int	 unlockpt __P((int));
    197 char	*ptsname __P((int));
    198 #endif
    199 
    200 /*
    201  * ISO C99
    202  */
    203 #if defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \
    204     defined(_NETBSD_SOURCE)
    205 /* LONGLONG */
    206 long long int	atoll __P((const char *));
    207 /* LONGLONG */
    208 long long int	llabs __P((long long int));
    209 /* LONGLONG */
    210 lldiv_t		lldiv __P((long long int, long long int));
    211 /* LONGLONG */
    212 long long int	strtoll __P((const char * __restrict, char ** __restrict, int));
    213 /* LONGLONG */
    214 unsigned long long int
    215 		strtoull __P((const char * __restrict, char ** __restrict,
    216 		    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 __P((const char *, const char *, int));
    225 #ifdef __LIBC12_SOURCE__
    226 void	 unsetenv __P((const char *));
    227 int	 __unsetenv13 __P((const char *));
    228 #else
    229 int	 unsetenv __P((const char *))		__RENAME(__unsetenv13);
    230 #endif
    231 
    232 int	 posix_openpt __P((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 __P((int));     /* built-in for gcc */
    241 #else
    242 void	*alloca __P((size_t));
    243 #endif /* __GNUC__ */
    244 
    245 u_int32_t arc4random __P((void));
    246 void	 arc4random_stir __P((void));
    247 void	 arc4random_addrandom __P((u_char *, int));
    248 char	*getbsize __P((int *, long *));
    249 char	*cgetcap __P((char *, const char *, int));
    250 int	 cgetclose __P((void));
    251 int	 cgetent __P((char **, const char * const *, const char *));
    252 int	 cgetfirst __P((char **, const char * const *));
    253 int	 cgetmatch __P((const char *, const char *));
    254 int	 cgetnext __P((char **, const char * const *));
    255 int	 cgetnum __P((char *, const char *, long *));
    256 int	 cgetset __P((const char *));
    257 int	 cgetstr __P((char *, const char *, char **));
    258 int	 cgetustr __P((char *, const char *, char **));
    259 
    260 int	 daemon __P((int, int));
    261 __aconst char *devname __P((dev_t, mode_t));
    262 int	 getloadavg __P((double [], int));
    263 
    264 void	 cfree __P((void *));
    265 
    266 int	 heapsort __P((void *, size_t, size_t,
    267 	    int (*)(const void *, const void *)));
    268 int	 mergesort __P((void *, size_t, size_t,
    269 	    int (*)(const void *, const void *)));
    270 int	 radixsort __P((const unsigned char **, int, const unsigned char *,
    271 	    unsigned));
    272 int	 sradixsort __P((const unsigned char **, int, const unsigned char *,
    273 	    unsigned));
    274 
    275 void	 setproctitle __P((const char *, ...))
    276 	    __attribute__((__format__(__printf__, 1, 2)));
    277 const char *getprogname __P((void)) __attribute__((__const__));
    278 void	setprogname __P((const char *));
    279 
    280 quad_t	 qabs __P((quad_t));
    281 quad_t	 strtoq __P((const char * __restrict, char ** __restrict, int));
    282 u_quad_t strtouq __P((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 __P((long, char *, int));
    291 
    292 size_t	shquote __P((const char *, char *, size_t));
    293 size_t	shquotev __P((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 __P((quad_t, quad_t));
    299 #endif
    300 __END_DECLS
    301 
    302 #endif /* !_STDLIB_H_ */
    303