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 #ifndef _SIZE_T_DECLARED 41 typedef __size_t size_t; /* _GCC_SIZE_T OK */ 42 #define _SIZE_T_DECLARED 43 #endif 44 45 #ifndef __cplusplus 46 #ifndef _WCHAR_T_DECLARED 47 typedef __wchar_t wchar_t; /* _GCC_WCHAR_T OK */ 48 #define _WCHAR_T_DECLARED 49 #endif 50 #endif 51 52 #if __EXT1_VISIBLE 53 #ifndef _ERRNO_T_DECLARED 54 typedef int errno_t; 55 #define _ERRNO_T_DECLARED 56 #endif 57 #endif 58 59 typedef struct { 60 int quot; /* quotient */ 61 int rem; /* remainder */ 62 } div_t; 63 64 typedef struct { 65 long quot; 66 long rem; 67 } ldiv_t; 68 69 #define EXIT_FAILURE 1 70 #define EXIT_SUCCESS 0 71 72 #define RAND_MAX 0x7fffffff 73 74 __BEGIN_DECLS 75 #ifdef _XLOCALE_H_ 76 #include <xlocale/_stdlib.h> 77 #endif 78 extern int __mb_cur_max; 79 extern int ___mb_cur_max(void); 80 #define MB_CUR_MAX ((size_t)___mb_cur_max()) 81 82 void abort(void) __dead2; 83 /* void abort2(const char *, int, void **) __dead2; */ 84 #if !defined(_KERNEL_VIRTUAL) 85 int abs(int) __pure2; 86 #endif 87 int atexit(void (*)(void)); 88 double atof(const char *); 89 int atoi(const char *); 90 long atol(const char *); 91 void *bsearch(const void *, const void *, size_t, 92 size_t, int (*)(const void *, const void *)); 93 void *calloc(size_t, size_t) __alloc_size2(1, 2) __malloclike __heedresult; 94 div_t div(int, int) __pure2; 95 void exit(int) __dead2; 96 void free(void *); 97 char *getenv(const char *); 98 #if !defined(_KERNEL_VIRTUAL) 99 long labs(long) __pure2; 100 #endif 101 ldiv_t ldiv(long, long) __pure2; 102 void *malloc(size_t) __malloclike __heedresult __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, int (*)(const void *, const void *)); 107 int rand(void); 108 void *realloc(void *, size_t) __heedresult __alloc_size(2); 109 void srand(unsigned); 110 double strtod(const char * __restrict, char ** __restrict); 111 float strtof(const char * __restrict, char ** __restrict); 112 #if !defined(_KERNEL_VIRTUAL) 113 long strtol(const char * __restrict, char ** __restrict, int); 114 #endif 115 long double 116 strtold(const char * __restrict, char ** __restrict); 117 #if !defined(_KERNEL_VIRTUAL) 118 unsigned long 119 strtoul(const char * __restrict, char ** __restrict, int); 120 #endif 121 int system(const char *); 122 int wctomb(char *, wchar_t); 123 size_t wcstombs(char * __restrict, const wchar_t * __restrict, size_t); 124 125 /* 126 * Functions added in C99 which we make conditionally available in the 127 * BSD^C89 namespace if the compiler supports `long long'. 128 * The #if test is more complicated than it ought to be because 129 * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long' 130 * is not supported in the compilation environment (which therefore means 131 * that it can't really be ISO C99). 132 * 133 * (The only other extension made by C99 in this header is _Exit().) 134 */ 135 #if __ISO_C_VISIBLE >= 1999 || defined(__cplusplus) 136 #ifdef __LONG_LONG_SUPPORTED 137 /* LONGLONG */ 138 typedef struct { 139 long long quot; 140 long long rem; 141 } lldiv_t; 142 143 /* LONGLONG */ 144 long long 145 atoll(const char *); 146 /* LONGLONG */ 147 long long 148 llabs(long long) __pure2; 149 /* LONGLONG */ 150 lldiv_t lldiv(long long, long long) __pure2; 151 /* LONGLONG */ 152 long long 153 strtoll(const char * __restrict, char ** __restrict, int); 154 /* LONGLONG */ 155 unsigned long long 156 strtoull(const char * __restrict, char ** __restrict, int); 157 #endif /* __LONG_LONG_SUPPORTED */ 158 159 void _Exit(int) __dead2; 160 #endif /* __ISO_C_VISIBLE >= 1999 */ 161 162 /* 163 * C11 functions. 164 */ 165 #if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 166 void *aligned_alloc(size_t, size_t) __malloclike __heedresult 167 __alloc_align(1) __alloc_size(2); 168 int at_quick_exit(void (*)(void)); /* extra extern case for __cplusplus? */ 169 void quick_exit(int) __dead2; 170 #endif /* __ISO_C_VISIBLE >= 2011 */ 171 172 /* 173 * Extensions made by POSIX relative to C. 174 */ 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) __nonnull(1); /* (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 we never declared 199 * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which 200 * we also do 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 double erand48(unsigned short[3]); 207 #if 0 208 #if __BSD_VISIBLE || (__XSI_VISIBLE && __XSI_VISIBLE < 700) 209 char *ecvt(double, int, int * __restrict, int * __restrict); /* LEGACY */ 210 char *fcvt(double, int, int * __restrict, int * __restrict); /* LEGACY */ 211 char *gcvt(double, int, int * __restrict, int * __restrict); /* LEGACY */ 212 #endif 213 #endif 214 int grantpt(int); 215 char *initstate(unsigned long /* XSI requires u_int */, char *, long); 216 long jrand48(unsigned short[3]); 217 char *l64a(long); 218 void lcong48(unsigned short[7]); 219 long lrand48(void); 220 #if __BSD_VISIBLE || (__XSI_VISIBLE && __XSI_VISIBLE < 700) 221 #if !defined(_MKTEMP_DECLARED) 222 char *mktemp(char *); /* LEGACY */ 223 #define _MKTEMP_DECLARED 224 #endif 225 #endif 226 long mrand48(void); 227 long nrand48(unsigned short[3]); 228 int posix_openpt(int); 229 char *ptsname(int); 230 int putenv(char *); 231 long random(void); 232 char *realpath(const char * __restrict, char * __restrict); 233 unsigned short 234 *seed48(unsigned short[3]); 235 int setkey(const char *); 236 char *setstate(/* const */ char *); 237 void srand48(long); 238 void srandom(unsigned long); 239 int unlockpt(int); 240 #endif /* __XSI_VISIBLE */ 241 242 #if __BSD_VISIBLE 243 /* extern const char *_malloc_options; 244 extern void (*_malloc_message)(const char *, const char *, const char *, 245 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 * On platforms where alloca() is not in libc, programs which use it 252 * will fail to link when compiled with non-GNU compilers. 253 */ 254 #if __GNUC__ >= 2 || defined(__INTEL_COMPILER) 255 #undef alloca /* some GNU bits try to get cute and define this on their own */ 256 #define alloca(sz) __builtin_alloca(sz) 257 #endif 258 259 __uint32_t 260 arc4random(void); 261 void arc4random_addrandom(__uint8_t *, size_t); 262 void arc4random_buf(void *, size_t); 263 void arc4random_stir(void); 264 __uint32_t 265 arc4random_uniform(__uint32_t); 266 char *getbsize(int *, long *); 267 268 /* getcap(3) functions */ 269 char *cgetcap(char *, const char *, int); 270 int cgetclose(void); 271 int cgetent(char **, char **, const char *); 272 int cgetfirst(char **, char **); 273 int cgetmatch(const char *, const char *); 274 int cgetnext(char **, char **); 275 int cgetnum(char *, const char *, long *); 276 int cgetset(const char *); 277 int cgetstr(char *, const char *, char **); 278 int cgetustr(char *, const char *, char **); 279 280 int daemon(int, int); 281 char *devname(dev_t, mode_t); 282 char *devname_r(dev_t, mode_t, char *, size_t); 283 char *fdevname(int); 284 int fdevname_r(int, char *, size_t); 285 void freezero(void *, size_t); 286 int getloadavg(double [], int); 287 const char * 288 getprogname(void); 289 290 int heapsort(void *, size_t, size_t, int (*)(const void *, const void *)); 291 int l64a_r(long, char *, int); 292 int mergesort(void *, size_t, size_t, int (*)(const void *, const void *)); 293 int mkostemp(char *, int); 294 int mkostemps(char *, int, int); 295 void qsort_r(void *, size_t, size_t, void *, 296 int (*)(void *, const void *, const void *)); 297 int radixsort(const unsigned char **, int, const unsigned char *, 298 unsigned int); 299 void *reallocarray(void *, size_t, size_t) __heedresult __alloc_size2(2, 3); 300 void *recallocarray(void *, size_t, size_t, size_t) __heedresult 301 __alloc_size2(3, 4); 302 void *reallocf(void *, size_t) __heedresult __alloc_size(2); 303 int rpmatch(const char *); 304 void setprogname(const char *); 305 int sradixsort(const unsigned char **, int, const unsigned char *, 306 unsigned int); 307 void sranddev(void); 308 void srandomdev(void); 309 long long 310 strsuftoll(const char *, const char *, long long, long long); 311 long long 312 strsuftollx(const char *, const char *, long long, long long, char *, 313 size_t); 314 long long 315 strtonum(const char *, long long, long long, const char **); 316 317 /* Deprecated interfaces. */ 318 #if !defined(_KERNEL_VIRTUAL) 319 __int64_t 320 strtoq(const char *, char **, int); 321 __uint64_t 322 strtouq(const char *, char **, int); 323 #endif 324 325 extern char *suboptarg; /* getsubopt(3) external variable */ 326 #endif /* __BSD_VISIBLE */ 327 328 #if __EXT1_VISIBLE 329 /* K.3.6 */ 330 typedef void (*constraint_handler_t)(const char * __restrict, 331 void * __restrict, errno_t); 332 /* K.3.6.1.1 */ 333 constraint_handler_t set_constraint_handler_s(constraint_handler_t handler); 334 /* K.3.6.1.2 */ 335 _Noreturn void abort_handler_s(const char * __restrict, void * __restrict, 336 errno_t); 337 /* K3.6.1.3 */ 338 void ignore_handler_s(const char * __restrict, void * __restrict, errno_t); 339 #endif /* __EXT1_VISIBLE */ 340 __END_DECLS 341 342 #endif /* !_STDLIB_H_ */ 343