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: src/include/stdlib.h,v 1.67 2008/07/22 11:40:42 ache Exp $ 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 #if __BSD_VISIBLE 41 #ifndef _RUNE_T_DECLARED 42 typedef __rune_t rune_t; 43 #define _RUNE_T_DECLARED 44 #endif 45 #endif 46 47 #ifndef _SIZE_T_DECLARED 48 typedef __size_t size_t; /* _GCC_SIZE_T OK */ 49 #define _SIZE_T_DECLARED 50 #endif 51 52 #ifndef __cplusplus 53 #ifndef _WCHAR_T_DECLARED 54 typedef __wchar_t wchar_t; /* _GCC_WCHAR_T OK */ 55 #define _WCHAR_T_DECLARED 56 #endif 57 #endif 58 59 #if __EXT1_VISIBLE 60 #ifndef _ERRNO_T_DECLARED 61 typedef int errno_t; 62 #define _ERRNO_T_DECLARED 63 #endif 64 #endif 65 66 typedef struct { 67 int quot; /* quotient */ 68 int rem; /* remainder */ 69 } div_t; 70 71 typedef struct { 72 long quot; 73 long rem; 74 } ldiv_t; 75 76 #define EXIT_FAILURE 1 77 #define EXIT_SUCCESS 0 78 79 #define RAND_MAX 0x7fffffff 80 81 __BEGIN_DECLS 82 #ifdef _XLOCALE_H_ 83 #include <xlocale/_stdlib.h> 84 #endif 85 extern int __mb_cur_max; 86 extern int ___mb_cur_max(void); 87 #define MB_CUR_MAX ((size_t)___mb_cur_max()) 88 89 void abort(void) __dead2; 90 /* void abort2(const char *, int, void **) __dead2; */ 91 #if !defined(_KERNEL_VIRTUAL) 92 int abs(int) __pure2; 93 #endif 94 int atexit(void (*)(void)); 95 double atof(const char *); 96 int atoi(const char *); 97 long atol(const char *); 98 void *bsearch(const void *, const void *, size_t, 99 size_t, int (*)(const void *, const void *)); 100 void *calloc(size_t, size_t) __alloc_size2(1, 2) __malloclike __heedresult; 101 div_t div(int, int) __pure2; 102 void exit(int) __dead2; 103 void free(void *); 104 char *getenv(const char *); 105 #if !defined(_KERNEL_VIRTUAL) 106 long labs(long) __pure2; 107 #endif 108 ldiv_t ldiv(long, long) __pure2; 109 void *malloc(size_t) __malloclike __heedresult __alloc_size(1); 110 int mblen(const char *, size_t); 111 size_t mbstowcs(wchar_t * __restrict , const char * __restrict, size_t); 112 int mbtowc(wchar_t * __restrict, const char * __restrict, size_t); 113 void qsort(void *, size_t, size_t, int (*)(const void *, const void *)); 114 int rand(void); 115 void *realloc(void *, size_t) __heedresult __alloc_size(2); 116 void srand(unsigned); 117 double strtod(const char * __restrict, char ** __restrict); 118 float strtof(const char * __restrict, char ** __restrict); 119 #if !defined(_KERNEL_VIRTUAL) 120 long strtol(const char * __restrict, char ** __restrict, int); 121 #endif 122 long double 123 strtold(const char * __restrict, char ** __restrict); 124 #if !defined(_KERNEL_VIRTUAL) 125 unsigned long 126 strtoul(const char * __restrict, char ** __restrict, int); 127 #endif 128 int system(const char *); 129 int wctomb(char *, wchar_t); 130 size_t wcstombs(char * __restrict, const wchar_t * __restrict, size_t); 131 132 /* 133 * Functions added in C99 which we make conditionally available in the 134 * BSD^C89 namespace if the compiler supports `long long'. 135 * The #if test is more complicated than it ought to be because 136 * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long' 137 * is not supported in the compilation environment (which therefore means 138 * that it can't really be ISO C99). 139 * 140 * (The only other extension made by C99 in this header is _Exit().) 141 */ 142 #if __ISO_C_VISIBLE >= 1999 || defined(__cplusplus) 143 #ifdef __LONG_LONG_SUPPORTED 144 /* LONGLONG */ 145 typedef struct { 146 long long quot; 147 long long rem; 148 } lldiv_t; 149 150 /* LONGLONG */ 151 long long 152 atoll(const char *); 153 /* LONGLONG */ 154 long long 155 llabs(long long) __pure2; 156 /* LONGLONG */ 157 lldiv_t lldiv(long long, long long) __pure2; 158 /* LONGLONG */ 159 long long 160 strtoll(const char * __restrict, char ** __restrict, int); 161 /* LONGLONG */ 162 unsigned long long 163 strtoull(const char * __restrict, char ** __restrict, int); 164 #endif /* __LONG_LONG_SUPPORTED */ 165 166 void _Exit(int) __dead2; 167 #endif /* __ISO_C_VISIBLE >= 1999 */ 168 169 /* 170 * C11 functions. 171 */ 172 #if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 173 void *aligned_alloc(size_t, size_t) __malloclike __heedresult 174 __alloc_align(1) __alloc_size(2); 175 int at_quick_exit(void (*)(void)); /* extra extern case for __cplusplus? */ 176 void quick_exit(int) __dead2; 177 #endif /* __ISO_C_VISIBLE >= 2011 */ 178 179 /* 180 * Extensions made by POSIX relative to C. 181 */ 182 #if __POSIX_VISIBLE >= 199506 183 int rand_r(unsigned *); /* (TSF) */ 184 #endif 185 #if __POSIX_VISIBLE >= 200112 186 int posix_memalign(void **, size_t, size_t) __nonnull(1); /* (ADV) */ 187 int setenv(const char *, const char *, int); 188 int unsetenv(const char *); 189 #endif 190 191 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE 192 int getsubopt(char **, char *const *, char **); 193 #ifndef _MKDTEMP_DECLARED 194 char *mkdtemp(char *); 195 #define _MKDTEMP_DECLARED 196 #endif 197 #ifndef _MKSTEMP_DECLARED 198 int mkstemp(char *); 199 #define _MKSTEMP_DECLARED 200 #endif 201 #endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ 202 203 /* 204 * The only changes to the XSI namespace in revision 6 were the deletion 205 * of the ttyslot() and valloc() functions, which we never declared 206 * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which 207 * we also do not have, and mktemp(), are to be deleted. 208 */ 209 #if __XSI_VISIBLE 210 /* XXX XSI requires pollution from <sys/wait.h> here. We'd rather not. */ 211 long a64l(const char *); 212 double drand48(void); 213 double erand48(unsigned short[3]); 214 #if 0 215 #if __BSD_VISIBLE || (__XSI_VISIBLE && __XSI_VISIBLE < 700) 216 char *ecvt(double, int, int * __restrict, int * __restrict); /* LEGACY */ 217 char *fcvt(double, int, int * __restrict, int * __restrict); /* LEGACY */ 218 char *gcvt(double, int, int * __restrict, int * __restrict); /* LEGACY */ 219 #endif 220 #endif 221 int grantpt(int); 222 char *initstate(unsigned long /* XSI requires u_int */, char *, long); 223 long jrand48(unsigned short[3]); 224 char *l64a(long); 225 void lcong48(unsigned short[7]); 226 long lrand48(void); 227 #if __BSD_VISIBLE || (__XSI_VISIBLE && __XSI_VISIBLE < 700) 228 #if !defined(_MKTEMP_DECLARED) 229 char *mktemp(char *); /* LEGACY */ 230 #define _MKTEMP_DECLARED 231 #endif 232 #endif 233 long mrand48(void); 234 long nrand48(unsigned short[3]); 235 int posix_openpt(int); 236 char *ptsname(int); 237 int putenv(char *); 238 long random(void); 239 char *realpath(const char * __restrict, char * __restrict); 240 unsigned short 241 *seed48(unsigned short[3]); 242 int setkey(const char *); 243 char *setstate(/* const */ char *); 244 void srand48(long); 245 void srandom(unsigned long); 246 int unlockpt(int); 247 #endif /* __XSI_VISIBLE */ 248 249 #if __BSD_VISIBLE 250 /* extern const char *_malloc_options; 251 extern void (*_malloc_message)(const char *, const char *, const char *, 252 const char *); */ 253 254 /* 255 * The alloca() function can't be implemented in C, and on some 256 * platforms it can't be implemented at all as a callable function. 257 * The GNU C compiler provides a built-in alloca() which we can use. 258 * On platforms where alloca() is not in libc, programs which use it 259 * will fail to link when compiled with non-GNU compilers. 260 */ 261 #if __GNUC__ >= 2 || defined(__INTEL_COMPILER) 262 #undef alloca /* some GNU bits try to get cute and define this on their own */ 263 #define alloca(sz) __builtin_alloca(sz) 264 #endif 265 266 __uint32_t 267 arc4random(void); 268 void arc4random_addrandom(__uint8_t *, size_t); 269 void arc4random_buf(void *, size_t); 270 void arc4random_stir(void); 271 __uint32_t 272 arc4random_uniform(__uint32_t); 273 char *getbsize(int *, long *); 274 275 /* getcap(3) functions */ 276 char *cgetcap(char *, const char *, int); 277 int cgetclose(void); 278 int cgetent(char **, char **, const char *); 279 int cgetfirst(char **, char **); 280 int cgetmatch(const char *, const char *); 281 int cgetnext(char **, char **); 282 int cgetnum(char *, const char *, long *); 283 int cgetset(const char *); 284 int cgetstr(char *, const char *, char **); 285 int cgetustr(char *, const char *, char **); 286 287 int daemon(int, int); 288 char *devname(dev_t, mode_t); 289 char *devname_r(dev_t, mode_t, char *, size_t); 290 char *fdevname(int); 291 int fdevname_r(int, char *, size_t); 292 void freezero(void *, size_t); 293 int getloadavg(double [], int); 294 const char * 295 getprogname(void); 296 297 int heapsort(void *, size_t, size_t, int (*)(const void *, const void *)); 298 int l64a_r(long, char *, int); 299 int mergesort(void *, size_t, size_t, int (*)(const void *, const void *)); 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 int); 306 void *reallocarray(void *, size_t, size_t) __heedresult __alloc_size2(2, 3); 307 void *recallocarray(void *, size_t, size_t, size_t) __heedresult 308 __alloc_size2(3, 4); 309 void *reallocf(void *, size_t) __heedresult __alloc_size(2); 310 int rpmatch(const char *); 311 void setprogname(const char *); 312 int sradixsort(const unsigned char **, int, const unsigned char *, 313 unsigned int); 314 void sranddev(void); 315 void srandomdev(void); 316 long long 317 strsuftoll(const char *, const char *, long long, long long); 318 long long 319 strsuftollx(const char *, const char *, long long, long long, char *, 320 size_t); 321 long long 322 strtonum(const char *, long long, long long, const char **); 323 324 /* Deprecated interfaces. */ 325 #if !defined(_KERNEL_VIRTUAL) 326 __int64_t 327 strtoq(const char *, char **, int); 328 __uint64_t 329 strtouq(const char *, char **, int); 330 #endif 331 332 extern char *suboptarg; /* getsubopt(3) external variable */ 333 #endif /* __BSD_VISIBLE */ 334 335 #if __EXT1_VISIBLE 336 /* K.3.6 */ 337 typedef void (*constraint_handler_t)(const char * __restrict, 338 void * __restrict, errno_t); 339 /* K.3.6.1.1 */ 340 constraint_handler_t set_constraint_handler_s(constraint_handler_t handler); 341 /* K.3.6.1.2 */ 342 _Noreturn void abort_handler_s(const char * __restrict, void * __restrict, 343 errno_t); 344 /* K3.6.1.3 */ 345 void ignore_handler_s(const char * __restrict, void * __restrict, errno_t); 346 #endif /* __EXT1_VISIBLE */ 347 __END_DECLS 348 349 #endif /* !_STDLIB_H_ */ 350