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