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: stable/11/include/stdlib.h 367512 2020-11-09 01:56:06Z delphij $ 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__NULLABILITY_PRAGMA_PUSH 41 42#if __BSD_VISIBLE 43#ifndef _RUNE_T_DECLARED 44typedef __rune_t rune_t; 45#define _RUNE_T_DECLARED 46#endif 47#endif 48 49#ifndef _SIZE_T_DECLARED 50typedef __size_t size_t; 51#define _SIZE_T_DECLARED 52#endif 53 54#ifndef __cplusplus 55#ifndef _WCHAR_T_DECLARED 56typedef ___wchar_t wchar_t; 57#define _WCHAR_T_DECLARED 58#endif 59#endif 60 61typedef struct { 62 int quot; /* quotient */ 63 int rem; /* remainder */ 64} div_t; 65 66typedef struct { 67 long quot; 68 long rem; 69} ldiv_t; 70 71#define EXIT_FAILURE 1 72#define EXIT_SUCCESS 0 73 74#define RAND_MAX 0x7ffffffd 75 76__BEGIN_DECLS 77#ifdef _XLOCALE_H_ 78#include <xlocale/_stdlib.h> 79#endif 80extern int __mb_cur_max; 81extern int ___mb_cur_max(void); 82#define MB_CUR_MAX (___mb_cur_max()) 83 84_Noreturn void abort(void); 85int abs(int) __pure2; 86int atexit(void (* _Nonnull)(void)); 87double atof(const char *); 88int atoi(const char *); 89long atol(const char *); 90void *bsearch(const void *, const void *, size_t, 91 size_t, int (*)(const void * _Nonnull, const void *)); 92void *calloc(size_t, size_t) __malloc_like __result_use_check 93 __alloc_size2(1, 2); 94div_t div(int, int) __pure2; 95_Noreturn void exit(int); 96void free(void *); 97char *getenv(const char *); 98long labs(long) __pure2; 99ldiv_t ldiv(long, long) __pure2; 100void *malloc(size_t) __malloc_like __result_use_check __alloc_size(1); 101int mblen(const char *, size_t); 102size_t mbstowcs(wchar_t * __restrict , const char * __restrict, size_t); 103int mbtowc(wchar_t * __restrict, const char * __restrict, size_t); 104void qsort(void *, size_t, size_t, 105 int (* _Nonnull)(const void *, const void *)); 106int rand(void); 107void *realloc(void *, size_t) __result_use_check __alloc_size(2); 108void srand(unsigned); 109double strtod(const char * __restrict, char ** __restrict); 110float strtof(const char * __restrict, char ** __restrict); 111long strtol(const char * __restrict, char ** __restrict, int); 112long double 113 strtold(const char * __restrict, char ** __restrict); 114unsigned long 115 strtoul(const char * __restrict, char ** __restrict, int); 116int system(const char *); 117int wctomb(char *, wchar_t); 118size_t wcstombs(char * __restrict, const wchar_t * __restrict, size_t); 119 120/* 121 * Functions added in C99 which we make conditionally available in the 122 * BSD^C89 namespace if the compiler supports `long long'. 123 * The #if test is more complicated than it ought to be because 124 * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long' 125 * is not supported in the compilation environment (which therefore means 126 * that it can't really be ISO C99). 127 * 128 * (The only other extension made by C99 in thie header is _Exit().) 129 */ 130#if __ISO_C_VISIBLE >= 1999 || defined(__cplusplus) 131#ifdef __LONG_LONG_SUPPORTED 132/* LONGLONG */ 133typedef struct { 134 long long quot; 135 long long rem; 136} lldiv_t; 137 138/* LONGLONG */ 139long long 140 atoll(const char *); 141/* LONGLONG */ 142long long 143 llabs(long long) __pure2; 144/* LONGLONG */ 145lldiv_t lldiv(long long, long long) __pure2; 146/* LONGLONG */ 147long long 148 strtoll(const char * __restrict, char ** __restrict, int); 149/* LONGLONG */ 150unsigned long long 151 strtoull(const char * __restrict, char ** __restrict, int); 152#endif /* __LONG_LONG_SUPPORTED */ 153 154_Noreturn void _Exit(int); 155#endif /* __ISO_C_VISIBLE >= 1999 */ 156 157/* 158 * If we're in a mode greater than C99, expose C11 functions. 159 */ 160#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 161void * aligned_alloc(size_t, size_t) __malloc_like __alloc_align(1) 162 __alloc_size(2); 163int at_quick_exit(void (*)(void)); 164_Noreturn void 165 quick_exit(int); 166#endif /* __ISO_C_VISIBLE >= 2011 */ 167/* 168 * Extensions made by POSIX relative to C. 169 */ 170#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE 171char *realpath(const char * __restrict, char * __restrict); 172#endif 173#if __POSIX_VISIBLE >= 199506 174int rand_r(unsigned *); /* (TSF) */ 175#endif 176#if __POSIX_VISIBLE >= 200112 177int posix_memalign(void **, size_t, size_t); /* (ADV) */ 178int setenv(const char *, const char *, int); 179int unsetenv(const char *); 180#endif 181 182#if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE 183int getsubopt(char **, char *const *, char **); 184#ifndef _MKDTEMP_DECLARED 185char *mkdtemp(char *); 186#define _MKDTEMP_DECLARED 187#endif 188#ifndef _MKSTEMP_DECLARED 189int mkstemp(char *); 190#define _MKSTEMP_DECLARED 191#endif 192#endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ 193 194/* 195 * The only changes to the XSI namespace in revision 6 were the deletion 196 * of the ttyslot() and valloc() functions, which FreeBSD never declared 197 * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which 198 * FreeBSD also does not have, and mktemp(), are to be deleted. 199 */ 200#if __XSI_VISIBLE 201/* XXX XSI requires pollution from <sys/wait.h> here. We'd rather not. */ 202long a64l(const char *); 203double drand48(void); 204/* char *ecvt(double, int, int * __restrict, int * __restrict); */ 205double erand48(unsigned short[3]); 206/* char *fcvt(double, int, int * __restrict, int * __restrict); */ 207/* char *gcvt(double, int, int * __restrict, int * __restrict); */ 208char *initstate(unsigned long /* XSI requires u_int */, char *, long); 209long jrand48(unsigned short[3]); 210char *l64a(long); 211void lcong48(unsigned short[7]); 212long lrand48(void); 213#if !defined(_MKTEMP_DECLARED) && (__BSD_VISIBLE || __XSI_VISIBLE <= 600) 214char *mktemp(char *); 215#define _MKTEMP_DECLARED 216#endif 217long mrand48(void); 218long nrand48(unsigned short[3]); 219int putenv(char *); 220long random(void); 221unsigned short 222 *seed48(unsigned short[3]); 223#ifndef _SETKEY_DECLARED 224int setkey(const char *); 225#define _SETKEY_DECLARED 226#endif 227char *setstate(/* const */ char *); 228void srand48(long); 229void srandom(unsigned long); 230#endif /* __XSI_VISIBLE */ 231 232#if __XSI_VISIBLE 233int grantpt(int); 234int posix_openpt(int); 235char *ptsname(int); 236int unlockpt(int); 237#endif /* __XSI_VISIBLE */ 238#if __BSD_VISIBLE 239/* ptsname_r will be included in POSIX issue 8 */ 240int ptsname_r(int, char *, size_t); 241#endif 242 243#if __BSD_VISIBLE 244extern const char *malloc_conf; 245extern void (*malloc_message)(void *, const char *); 246 247/* 248 * The alloca() function can't be implemented in C, and on some 249 * platforms it can't be implemented at all as a callable function. 250 * The GNU C compiler provides a built-in alloca() which we can use; 251 * in all other cases, provide a prototype, mainly to pacify various 252 * incarnations of lint. On platforms where alloca() is not in libc, 253 * programs which use it will fail to link when compiled with non-GNU 254 * compilers. 255 */ 256#if __GNUC__ >= 2 || defined(__INTEL_COMPILER) 257#undef alloca /* some GNU bits try to get cute and define this on their own */ 258#define alloca(sz) __builtin_alloca(sz) 259#elif defined(lint) 260void *alloca(size_t); 261#endif 262 263void abort2(const char *, int, void **) __dead2; 264__uint32_t 265 arc4random(void); 266void arc4random_addrandom(unsigned char *, int); 267void arc4random_buf(void *, size_t); 268void arc4random_stir(void); 269__uint32_t 270 arc4random_uniform(__uint32_t); 271#ifdef __BLOCKS__ 272int atexit_b(void (^ _Nonnull)(void)); 273void *bsearch_b(const void *, const void *, size_t, 274 size_t, int (^ _Nonnull)(const void *, const void *)); 275#endif 276char *getbsize(int *, long *); 277 /* getcap(3) functions */ 278char *cgetcap(char *, const char *, int); 279int cgetclose(void); 280int cgetent(char **, char **, const char *); 281int cgetfirst(char **, char **); 282int cgetmatch(const char *, const char *); 283int cgetnext(char **, char **); 284int cgetnum(char *, const char *, long *); 285int cgetset(const char *); 286int cgetstr(char *, const char *, char **); 287int cgetustr(char *, const char *, char **); 288 289int daemon(int, int); 290char *devname(__dev_t, __mode_t); 291char *devname_r(__dev_t, __mode_t, char *, int); 292char *fdevname(int); 293char *fdevname_r(int, char *, int); 294int getloadavg(double [], int); 295const char * 296 getprogname(void); 297 298int heapsort(void *, size_t, size_t, 299 int (* _Nonnull)(const void *, const void *)); 300#ifdef __BLOCKS__ 301int heapsort_b(void *, size_t, size_t, 302 int (^ _Nonnull)(const void *, const void *)); 303void qsort_b(void *, size_t, size_t, 304 int (^ _Nonnull)(const void *, const void *)); 305#endif 306int l64a_r(long, char *, int); 307int mergesort(void *, size_t, size_t, int (*)(const void *, const void *)); 308#ifdef __BLOCKS__ 309int mergesort_b(void *, size_t, size_t, int (^)(const void *, const void *)); 310#endif 311int mkostemp(char *, int); 312int mkostemps(char *, int, int); 313void qsort_r(void *, size_t, size_t, void *, 314 int (*)(void *, const void *, const void *)); 315int radixsort(const unsigned char **, int, const unsigned char *, 316 unsigned); 317void *reallocarray(void *, size_t, size_t) __result_use_check 318 __alloc_size2(2, 3); 319void *reallocf(void *, size_t) __result_use_check __alloc_size(2); 320int rpmatch(const char *); 321void setprogname(const char *); 322int sradixsort(const unsigned char **, int, const unsigned char *, 323 unsigned); 324void sranddev(void); 325void srandomdev(void); 326long long 327 strtonum(const char *, long long, long long, const char **); 328 329/* Deprecated interfaces, to be removed. */ 330__int64_t 331 strtoq(const char *, char **, int); 332__uint64_t 333 strtouq(const char *, char **, int); 334 335extern char *suboptarg; /* getsubopt(3) external variable */ 336#endif /* __BSD_VISIBLE */ 337 338#if __EXT1_VISIBLE 339 340#ifndef _ERRNO_T_DEFINED 341#define _ERRNO_T_DEFINED 342typedef int errno_t; 343#endif 344 345/* K.3.6 */ 346typedef void (*constraint_handler_t)(const char * __restrict, 347 void * __restrict, errno_t); 348/* K.3.6.1.1 */ 349constraint_handler_t set_constraint_handler_s(constraint_handler_t handler); 350/* K.3.6.1.2 */ 351_Noreturn void abort_handler_s(const char * __restrict, void * __restrict, 352 errno_t); 353/* K3.6.1.3 */ 354void ignore_handler_s(const char * __restrict, void * __restrict, errno_t); 355#endif /* __EXT1_VISIBLE */ 356 357__END_DECLS 358__NULLABILITY_PRAGMA_POP 359 360#endif /* !_STDLIB_H_ */ 361