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 * $FreeBSD$ 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 44 typedef __rune_t rune_t; 45 #define _RUNE_T_DECLARED 46 #endif 47 #endif 48 49 #ifndef _SIZE_T_DECLARED 50 typedef __size_t size_t; 51 #define _SIZE_T_DECLARED 52 #endif 53 54 #ifndef __cplusplus 55 #ifndef _WCHAR_T_DECLARED 56 typedef ___wchar_t wchar_t; 57 #define _WCHAR_T_DECLARED 58 #endif 59 #endif 60 61 typedef struct { 62 int quot; /* quotient */ 63 int rem; /* remainder */ 64 } div_t; 65 66 typedef 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 80 extern int __mb_cur_max; 81 extern int ___mb_cur_max(void); 82 #define MB_CUR_MAX ((size_t)___mb_cur_max()) 83 84 _Noreturn void abort(void); 85 int abs(int) __pure2; 86 int atexit(void (* _Nonnull)(void)); 87 double atof(const char *); 88 int atoi(const char *); 89 long atol(const char *); 90 void *bsearch(const void *, const void *, size_t, 91 size_t, int (*)(const void * _Nonnull, const void *)); 92 void *calloc(size_t, size_t) __malloc_like __result_use_check 93 __alloc_size(1) __alloc_size(2); 94 div_t div(int, int) __pure2; 95 _Noreturn void exit(int); 96 void free(void *); 97 char *getenv(const char *); 98 long labs(long) __pure2; 99 ldiv_t ldiv(long, long) __pure2; 100 void *malloc(size_t) __malloc_like __result_use_check __alloc_size(1); 101 int mblen(const char *, size_t); 102 size_t mbstowcs(wchar_t * __restrict , const char * __restrict, size_t); 103 int mbtowc(wchar_t * __restrict, const char * __restrict, size_t); 104 void qsort(void *, size_t, size_t, 105 int (* _Nonnull)(const void *, const void *)); 106 int rand(void); 107 void *realloc(void *, size_t) __result_use_check __alloc_size(2); 108 void srand(unsigned); 109 double strtod(const char * __restrict, char ** __restrict); 110 float strtof(const char * __restrict, char ** __restrict); 111 long strtol(const char * __restrict, char ** __restrict, int); 112 long double 113 strtold(const char * __restrict, char ** __restrict); 114 unsigned long 115 strtoul(const char * __restrict, char ** __restrict, int); 116 int system(const char *); 117 int wctomb(char *, wchar_t); 118 size_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 */ 133 typedef struct { 134 long long quot; 135 long long rem; 136 } lldiv_t; 137 138 /* LONGLONG */ 139 long long 140 atoll(const char *); 141 /* LONGLONG */ 142 long long 143 llabs(long long) __pure2; 144 /* LONGLONG */ 145 lldiv_t lldiv(long long, long long) __pure2; 146 /* LONGLONG */ 147 long long 148 strtoll(const char * __restrict, char ** __restrict, int); 149 /* LONGLONG */ 150 unsigned 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 161 void * aligned_alloc(size_t, size_t) __malloc_like __alloc_align(1) 162 __alloc_size(2); 163 int 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 171 char *realpath(const char * __restrict, char * __restrict); 172 #endif 173 #if __POSIX_VISIBLE >= 199506 174 int rand_r(unsigned *); /* (TSF) */ 175 #endif 176 #if __POSIX_VISIBLE >= 200112 177 int posix_memalign(void **, size_t, size_t); /* (ADV) */ 178 int setenv(const char *, const char *, int); 179 int unsetenv(const char *); 180 #endif 181 182 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE 183 int getsubopt(char **, char *const *, char **); 184 #ifndef _MKDTEMP_DECLARED 185 char *mkdtemp(char *); 186 #define _MKDTEMP_DECLARED 187 #endif 188 #ifndef _MKSTEMP_DECLARED 189 int 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. */ 202 long a64l(const char *); 203 double drand48(void); 204 /* char *ecvt(double, int, int * __restrict, int * __restrict); */ 205 double erand48(unsigned short[3]); 206 /* char *fcvt(double, int, int * __restrict, int * __restrict); */ 207 /* char *gcvt(double, int, int * __restrict, int * __restrict); */ 208 int grantpt(int); 209 char *initstate(unsigned int, char *, size_t); 210 long jrand48(unsigned short[3]); 211 char *l64a(long); 212 void lcong48(unsigned short[7]); 213 long lrand48(void); 214 #if !defined(_MKTEMP_DECLARED) && (__BSD_VISIBLE || __XSI_VISIBLE <= 600) 215 char *mktemp(char *); 216 #define _MKTEMP_DECLARED 217 #endif 218 long mrand48(void); 219 long nrand48(unsigned short[3]); 220 int posix_openpt(int); 221 char *ptsname(int); 222 int putenv(char *); 223 long random(void); 224 unsigned short 225 *seed48(unsigned short[3]); 226 char *setstate(/* const */ char *); 227 void srand48(long); 228 void srandom(unsigned int); 229 int unlockpt(int); 230 #endif /* __XSI_VISIBLE */ 231 232 #if __BSD_VISIBLE 233 extern const char *malloc_conf; 234 extern void (*malloc_message)(void *, const char *); 235 236 /* 237 * The alloca() function can't be implemented in C, and on some 238 * platforms it can't be implemented at all as a callable function. 239 * The GNU C compiler provides a built-in alloca() which we can use; 240 * in all other cases, provide a prototype, mainly to pacify various 241 * incarnations of lint. On platforms where alloca() is not in libc, 242 * programs which use it will fail to link when compiled with non-GNU 243 * 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 #elif defined(lint) 249 void *alloca(size_t); 250 #endif 251 252 void abort2(const char *, int, void **) __dead2; 253 __uint32_t 254 arc4random(void); 255 void arc4random_addrandom(unsigned char *, int); 256 void arc4random_buf(void *, size_t); 257 void arc4random_stir(void); 258 __uint32_t 259 arc4random_uniform(__uint32_t); 260 #ifdef __BLOCKS__ 261 int atexit_b(void (^ _Nonnull)(void)); 262 void *bsearch_b(const void *, const void *, size_t, 263 size_t, int (^ _Nonnull)(const void *, const void *)); 264 #endif 265 char *getbsize(int *, long *); 266 /* getcap(3) functions */ 267 char *cgetcap(char *, const char *, int); 268 int cgetclose(void); 269 int cgetent(char **, char **, const char *); 270 int cgetfirst(char **, char **); 271 int cgetmatch(const char *, const char *); 272 int cgetnext(char **, char **); 273 int cgetnum(char *, const char *, long *); 274 int cgetset(const char *); 275 int cgetstr(char *, const char *, char **); 276 int cgetustr(char *, const char *, char **); 277 278 int daemon(int, int); 279 char *devname(__dev_t, __mode_t); 280 char *devname_r(__dev_t, __mode_t, char *, int); 281 char *fdevname(int); 282 char *fdevname_r(int, char *, int); 283 int getloadavg(double [], int); 284 const char * 285 getprogname(void); 286 287 int heapsort(void *, size_t, size_t, 288 int (* _Nonnull)(const void *, const void *)); 289 #ifdef __BLOCKS__ 290 int heapsort_b(void *, size_t, size_t, 291 int (^ _Nonnull)(const void *, const void *)); 292 void qsort_b(void *, size_t, size_t, 293 int (^ _Nonnull)(const void *, const void *)); 294 #endif 295 int l64a_r(long, char *, int); 296 int mergesort(void *, size_t, size_t, int (*)(const void *, const void *)); 297 #ifdef __BLOCKS__ 298 int mergesort_b(void *, size_t, size_t, int (^)(const void *, const void *)); 299 #endif 300 int mkostemp(char *, int); 301 int mkostemps(char *, int, int); 302 void qsort_r(void *, size_t, size_t, void *, 303 int (*)(void *, const void *, const void *)); 304 int radixsort(const unsigned char **, int, const unsigned char *, 305 unsigned); 306 void *reallocarray(void *, size_t, size_t) __result_use_check __alloc_size(2) 307 __alloc_size(3); 308 void *reallocf(void *, size_t) __alloc_size(2); 309 int rpmatch(const char *); 310 void setprogname(const char *); 311 int sradixsort(const unsigned char **, int, const unsigned char *, 312 unsigned); 313 void sranddev(void); 314 void srandomdev(void); 315 long long 316 strtonum(const char *, long long, long long, const char **); 317 318 /* Deprecated interfaces, to be removed. */ 319 __int64_t 320 strtoq(const char *, char **, int); 321 __uint64_t 322 strtouq(const char *, char **, int); 323 324 extern char *suboptarg; /* getsubopt(3) external variable */ 325 #endif /* __BSD_VISIBLE */ 326 327 #if __EXT1_VISIBLE 328 329 #ifndef _ERRNO_T_DEFINED 330 #define _ERRNO_T_DEFINED 331 typedef int errno_t; 332 #endif 333 334 /* K.3.6 */ 335 typedef void (*constraint_handler_t)(const char * __restrict, 336 void * __restrict, errno_t); 337 /* K.3.6.1.1 */ 338 constraint_handler_t set_constraint_handler_s(constraint_handler_t handler); 339 /* K.3.6.1.2 */ 340 _Noreturn void abort_handler_s(const char * __restrict, void * __restrict, 341 errno_t); 342 /* K3.6.1.3 */ 343 void ignore_handler_s(const char * __restrict, void * __restrict, errno_t); 344 #endif /* __EXT1_VISIBLE */ 345 346 __END_DECLS 347 __NULLABILITY_PRAGMA_POP 348 349 #endif /* !_STDLIB_H_ */ 350