1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 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 * $FreeBSD$ 33 */ 34 35 #ifndef _STDLIB_H_ 36 #define _STDLIB_H_ 37 38 #include <sys/cdefs.h> 39 #include <sys/_null.h> 40 #include <sys/_types.h> 41 42 __NULLABILITY_PRAGMA_PUSH 43 44 #if __BSD_VISIBLE 45 #ifndef _RUNE_T_DECLARED 46 typedef __rune_t rune_t; 47 #define _RUNE_T_DECLARED 48 #endif 49 #endif 50 51 #ifndef _SIZE_T_DECLARED 52 typedef __size_t size_t; 53 #define _SIZE_T_DECLARED 54 #endif 55 56 #ifndef __cplusplus 57 #ifndef _WCHAR_T_DECLARED 58 typedef ___wchar_t wchar_t; 59 #define _WCHAR_T_DECLARED 60 #endif 61 #endif 62 63 typedef struct { 64 int quot; /* quotient */ 65 int rem; /* remainder */ 66 } div_t; 67 68 typedef 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 0x7ffffffd 77 78 __BEGIN_DECLS 79 #ifdef _XLOCALE_H_ 80 #include <xlocale/_stdlib.h> 81 #endif 82 extern int __mb_cur_max; 83 extern int ___mb_cur_max(void); 84 #define MB_CUR_MAX ((size_t)___mb_cur_max()) 85 86 _Noreturn void abort(void); 87 int abs(int) __pure2; 88 int atexit(void (* _Nonnull)(void)); 89 double atof(const char *); 90 int atoi(const char *); 91 long atol(const char *); 92 void *bsearch(const void *, const void *, size_t, 93 size_t, int (*)(const void * _Nonnull, const void *)); 94 void *calloc(size_t, size_t) __malloc_like __result_use_check 95 __alloc_size2(1, 2); 96 div_t div(int, int) __pure2; 97 _Noreturn void exit(int); 98 void free(void *); 99 char *getenv(const char *); 100 long labs(long) __pure2; 101 ldiv_t ldiv(long, long) __pure2; 102 void *malloc(size_t) __malloc_like __result_use_check __alloc_size(1); 103 int mblen(const char *, size_t); 104 size_t mbstowcs(wchar_t * __restrict , const char * __restrict, size_t); 105 int mbtowc(wchar_t * __restrict, const char * __restrict, size_t); 106 void qsort(void *, size_t, size_t, 107 int (* _Nonnull)(const void *, const void *)); 108 int rand(void); 109 void *realloc(void *, size_t) __result_use_check __alloc_size(2); 110 void srand(unsigned); 111 double strtod(const char * __restrict, char ** __restrict); 112 float strtof(const char * __restrict, char ** __restrict); 113 long strtol(const char * __restrict, char ** __restrict, int); 114 long double 115 strtold(const char * __restrict, char ** __restrict); 116 unsigned long 117 strtoul(const char * __restrict, char ** __restrict, int); 118 int system(const char *); 119 int wctomb(char *, wchar_t); 120 size_t wcstombs(char * __restrict, const wchar_t * __restrict, size_t); 121 122 /* 123 * Functions added in C99 which we make conditionally available in the 124 * BSD^C89 namespace if the compiler supports `long long'. 125 * The #if test is more complicated than it ought to be because 126 * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long' 127 * is not supported in the compilation environment (which therefore means 128 * that it can't really be ISO C99). 129 * 130 * (The only other extension made by C99 in thie header is _Exit().) 131 */ 132 #if __ISO_C_VISIBLE >= 1999 || defined(__cplusplus) 133 #ifdef __LONG_LONG_SUPPORTED 134 /* LONGLONG */ 135 typedef struct { 136 long long quot; 137 long long rem; 138 } lldiv_t; 139 140 /* LONGLONG */ 141 long long 142 atoll(const char *); 143 /* LONGLONG */ 144 long long 145 llabs(long long) __pure2; 146 /* LONGLONG */ 147 lldiv_t lldiv(long long, long long) __pure2; 148 /* LONGLONG */ 149 long long 150 strtoll(const char * __restrict, char ** __restrict, int); 151 /* LONGLONG */ 152 unsigned long long 153 strtoull(const char * __restrict, char ** __restrict, int); 154 #endif /* __LONG_LONG_SUPPORTED */ 155 156 _Noreturn void _Exit(int); 157 #endif /* __ISO_C_VISIBLE >= 1999 */ 158 159 /* 160 * If we're in a mode greater than C99, expose C11 functions. 161 */ 162 #if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 163 void * aligned_alloc(size_t, size_t) __malloc_like __alloc_align(1) 164 __alloc_size(2); 165 int at_quick_exit(void (*)(void)); 166 _Noreturn void 167 quick_exit(int); 168 #endif /* __ISO_C_VISIBLE >= 2011 */ 169 /* 170 * Extensions made by POSIX relative to C. 171 */ 172 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE 173 char *realpath(const char * __restrict, char * __restrict); 174 #endif 175 #if __POSIX_VISIBLE >= 199506 176 int rand_r(unsigned *); /* (TSF) */ 177 #endif 178 #if __POSIX_VISIBLE >= 200112 179 int posix_memalign(void **, size_t, size_t); /* (ADV) */ 180 int setenv(const char *, const char *, int); 181 int unsetenv(const char *); 182 #endif 183 184 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE 185 int getsubopt(char **, char *const *, char **); 186 #ifndef _MKDTEMP_DECLARED 187 char *mkdtemp(char *); 188 #define _MKDTEMP_DECLARED 189 #endif 190 #ifndef _MKSTEMP_DECLARED 191 int mkstemp(char *); 192 #define _MKSTEMP_DECLARED 193 #endif 194 #endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ 195 196 /* 197 * The only changes to the XSI namespace in revision 6 were the deletion 198 * of the ttyslot() and valloc() functions, which FreeBSD never declared 199 * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which 200 * FreeBSD also does not have, and mktemp(), are to be deleted. 201 */ 202 #if __XSI_VISIBLE 203 /* XXX XSI requires pollution from <sys/wait.h> here. We'd rather not. */ 204 long a64l(const char *); 205 double drand48(void); 206 /* char *ecvt(double, int, int * __restrict, int * __restrict); */ 207 double erand48(unsigned short[3]); 208 /* char *fcvt(double, int, int * __restrict, int * __restrict); */ 209 /* char *gcvt(double, int, int * __restrict, int * __restrict); */ 210 int grantpt(int); 211 char *initstate(unsigned int, char *, size_t); 212 long jrand48(unsigned short[3]); 213 char *l64a(long); 214 void lcong48(unsigned short[7]); 215 long lrand48(void); 216 #if !defined(_MKTEMP_DECLARED) && (__BSD_VISIBLE || __XSI_VISIBLE <= 600) 217 char *mktemp(char *); 218 #define _MKTEMP_DECLARED 219 #endif 220 long mrand48(void); 221 long nrand48(unsigned short[3]); 222 int posix_openpt(int); 223 char *ptsname(int); 224 int putenv(char *); 225 long random(void); 226 unsigned short 227 *seed48(unsigned short[3]); 228 char *setstate(/* const */ char *); 229 void srand48(long); 230 void srandom(unsigned int); 231 int unlockpt(int); 232 #endif /* __XSI_VISIBLE */ 233 234 #if __BSD_VISIBLE 235 extern const char *malloc_conf; 236 extern void (*malloc_message)(void *, const char *); 237 238 /* 239 * The alloca() function can't be implemented in C, and on some 240 * platforms it can't be implemented at all as a callable function. 241 * The GNU C compiler provides a built-in alloca() which we can use. 242 * On platforms where alloca() is not in libc, programs which use it 243 * will fail to link when compiled with non-GNU compilers. 244 */ 245 #if __GNUC__ >= 2 || defined(__INTEL_COMPILER) 246 #undef alloca /* some GNU bits try to get cute and define this on their own */ 247 #define alloca(sz) __builtin_alloca(sz) 248 #endif 249 250 void abort2(const char *, int, void **) __dead2; 251 __uint32_t 252 arc4random(void); 253 void arc4random_buf(void *, size_t); 254 __uint32_t 255 arc4random_uniform(__uint32_t); 256 257 #ifdef __BLOCKS__ 258 int atexit_b(void (^ _Nonnull)(void)); 259 void *bsearch_b(const void *, const void *, size_t, 260 size_t, int (^ _Nonnull)(const void *, const void *)); 261 #endif 262 char *getbsize(int *, long *); 263 /* getcap(3) functions */ 264 char *cgetcap(char *, const char *, int); 265 int cgetclose(void); 266 int cgetent(char **, char **, const char *); 267 int cgetfirst(char **, char **); 268 int cgetmatch(const char *, const char *); 269 int cgetnext(char **, char **); 270 int cgetnum(char *, const char *, long *); 271 int cgetset(const char *); 272 int cgetstr(char *, const char *, char **); 273 int cgetustr(char *, const char *, char **); 274 275 int daemon(int, int); 276 int daemonfd(int, int); 277 char *devname(__dev_t, __mode_t); 278 char *devname_r(__dev_t, __mode_t, char *, int); 279 char *fdevname(int); 280 char *fdevname_r(int, char *, int); 281 int getloadavg(double [], int); 282 const char * 283 getprogname(void); 284 285 int heapsort(void *, size_t, size_t, 286 int (* _Nonnull)(const void *, const void *)); 287 #ifdef __BLOCKS__ 288 int heapsort_b(void *, size_t, size_t, 289 int (^ _Nonnull)(const void *, const void *)); 290 void qsort_b(void *, size_t, size_t, 291 int (^ _Nonnull)(const void *, const void *)); 292 #endif 293 int l64a_r(long, char *, int); 294 int mergesort(void *, size_t, size_t, int (*)(const void *, const void *)); 295 #ifdef __BLOCKS__ 296 int mergesort_b(void *, size_t, size_t, int (^)(const void *, const void *)); 297 #endif 298 int mkostemp(char *, int); 299 int mkostemps(char *, int, int); 300 int mkostempsat(int, char *, int, int); 301 void qsort_r(void *, size_t, size_t, void *, 302 int (*)(void *, const void *, const void *)); 303 int radixsort(const unsigned char **, int, const unsigned char *, 304 unsigned); 305 void *reallocarray(void *, size_t, size_t) __result_use_check 306 __alloc_size2(2, 3); 307 void *reallocf(void *, size_t) __result_use_check __alloc_size(2); 308 int rpmatch(const char *); 309 void setprogname(const char *); 310 int sradixsort(const unsigned char **, int, const unsigned char *, 311 unsigned); 312 void sranddev(void); 313 void srandomdev(void); 314 long long 315 strtonum(const char *, long long, long long, const char **); 316 317 /* Deprecated interfaces, to be removed. */ 318 __int64_t 319 strtoq(const char *, char **, int); 320 __uint64_t 321 strtouq(const char *, char **, int); 322 323 extern char *suboptarg; /* getsubopt(3) external variable */ 324 #endif /* __BSD_VISIBLE */ 325 326 #if __EXT1_VISIBLE 327 328 #ifndef _ERRNO_T_DEFINED 329 #define _ERRNO_T_DEFINED 330 typedef int errno_t; 331 #endif 332 333 /* K.3.6 */ 334 typedef void (*constraint_handler_t)(const char * __restrict, 335 void * __restrict, errno_t); 336 /* K.3.6.1.1 */ 337 constraint_handler_t set_constraint_handler_s(constraint_handler_t handler); 338 /* K.3.6.1.2 */ 339 _Noreturn void abort_handler_s(const char * __restrict, void * __restrict, 340 errno_t); 341 /* K3.6.1.3 */ 342 void ignore_handler_s(const char * __restrict, void * __restrict, errno_t); 343 #endif /* __EXT1_VISIBLE */ 344 345 __END_DECLS 346 __NULLABILITY_PRAGMA_POP 347 348 #endif /* !_STDLIB_H_ */ 349