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 43 #ifndef _SIZE_T_DECLARED 44 typedef __size_t size_t; /* _GCC_SIZE_T OK */ 45 #define _SIZE_T_DECLARED 46 #endif 47 48 #ifndef __cplusplus 49 #ifndef _WCHAR_T_DECLARED 50 typedef ___wchar_t wchar_t; /* _GCC_WCHAR_T OK */ 51 #define _WCHAR_T_DECLARED 52 #endif 53 #endif 54 55 #if __EXT1_VISIBLE 56 #ifndef _ERRNO_T_DECLARED 57 typedef int errno_t; 58 #define _ERRNO_T_DECLARED 59 #endif 60 #endif 61 62 typedef struct { 63 int quot; /* quotient */ 64 int rem; /* remainder */ 65 } div_t; 66 67 typedef struct { 68 long quot; 69 long rem; 70 } ldiv_t; 71 72 #define EXIT_FAILURE 1 73 #define EXIT_SUCCESS 0 74 75 #define RAND_MAX 0x7fffffff 76 77 __BEGIN_DECLS 78 #ifdef _XLOCALE_H_ 79 #include <xlocale/_stdlib.h> 80 #endif 81 extern int __mb_cur_max; 82 extern int ___mb_cur_max(void); 83 #define MB_CUR_MAX ((size_t)___mb_cur_max()) 84 85 void abort(void) __dead2; 86 /* void abort2(const char *, int, void **) __dead2; */ 87 #if !defined(_KERNEL_VIRTUAL) 88 int abs(int) __pure2; 89 #endif 90 int atexit(void (*)(void)); 91 double atof(const char *); 92 int atoi(const char *); 93 long atol(const char *); 94 void *bsearch(const void *, const void *, size_t, 95 size_t, int (*)(const void *, const void *)); 96 void *calloc(size_t, size_t) __alloc_size2(1, 2) __malloclike __heedresult; 97 div_t div(int, int) __pure2; 98 void exit(int) __dead2; 99 void free(void *); 100 char *getenv(const char *); 101 #if !defined(_KERNEL_VIRTUAL) 102 long labs(long) __pure2; 103 #endif 104 ldiv_t ldiv(long, long) __pure2; 105 void *malloc(size_t) __malloclike __heedresult __alloc_size(1); 106 int mblen(const char *, size_t); 107 size_t mbstowcs(wchar_t * __restrict , const char * __restrict, size_t); 108 int mbtowc(wchar_t * __restrict, const char * __restrict, size_t); 109 void qsort(void *, size_t, size_t, int (*)(const void *, const void *)); 110 int rand(void); 111 void *realloc(void *, size_t) __heedresult __alloc_size(2); 112 void srand(unsigned); 113 double strtod(const char * __restrict, char ** __restrict); 114 float strtof(const char * __restrict, char ** __restrict); 115 #if !defined(_KERNEL_VIRTUAL) 116 long strtol(const char * __restrict, char ** __restrict, int); 117 #endif 118 long double 119 strtold(const char * __restrict, char ** __restrict); 120 #if !defined(_KERNEL_VIRTUAL) 121 unsigned long 122 strtoul(const char * __restrict, char ** __restrict, int); 123 #endif 124 int system(const char *); 125 int wctomb(char *, wchar_t); 126 size_t wcstombs(char * __restrict, const wchar_t * __restrict, size_t); 127 128 /* 129 * Functions added in C99 which we make conditionally available in the 130 * BSD^C89 namespace if the compiler supports `long long'. 131 * The #if test is more complicated than it ought to be because 132 * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long' 133 * is not supported in the compilation environment (which therefore means 134 * that it can't really be ISO C99). 135 * 136 * (The only other extension made by C99 in this header is _Exit().) 137 */ 138 #if __ISO_C_VISIBLE >= 1999 || defined(__cplusplus) 139 #ifdef __LONG_LONG_SUPPORTED 140 /* LONGLONG */ 141 typedef struct { 142 long long quot; 143 long long rem; 144 } lldiv_t; 145 146 /* LONGLONG */ 147 long long 148 atoll(const char *); 149 /* LONGLONG */ 150 long long 151 llabs(long long) __pure2; 152 /* LONGLONG */ 153 lldiv_t lldiv(long long, long long) __pure2; 154 /* LONGLONG */ 155 long long 156 strtoll(const char * __restrict, char ** __restrict, int); 157 /* LONGLONG */ 158 unsigned long long 159 strtoull(const char * __restrict, char ** __restrict, int); 160 #endif /* __LONG_LONG_SUPPORTED */ 161 162 void _Exit(int) __dead2; 163 #endif /* __ISO_C_VISIBLE >= 1999 */ 164 165 /* 166 * C11 functions. 167 */ 168 #if __ISO_C_VISIBLE >= 2011 || (defined(__cplusplus) && __cplusplus >= 201103L) 169 void *aligned_alloc(size_t, size_t) __malloclike __heedresult 170 __alloc_align(1) __alloc_size(2); 171 int at_quick_exit(void (*)(void)); /* extra extern case for __cplusplus? */ 172 void quick_exit(int) __dead2; 173 #endif /* __ISO_C_VISIBLE >= 2011 */ 174 175 /* 176 * Extensions made by POSIX relative to C. 177 */ 178 #if __POSIX_VISIBLE >= 199506 179 int rand_r(unsigned *); /* (TSF) */ 180 #endif 181 #if __POSIX_VISIBLE >= 200112 182 int posix_memalign(void **, size_t, size_t) __nonnull(1); /* (ADV) */ 183 int setenv(const char *, const char *, int); 184 int unsetenv(const char *); 185 #endif 186 187 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE 188 int getsubopt(char **, char *const *, char **); 189 #ifndef _MKDTEMP_DECLARED 190 char *mkdtemp(char *); 191 #define _MKDTEMP_DECLARED 192 #endif 193 #ifndef _MKSTEMP_DECLARED 194 int mkstemp(char *); 195 #define _MKSTEMP_DECLARED 196 #endif 197 #endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ 198 199 /* 200 * The only changes to the XSI namespace in revision 6 were the deletion 201 * of the ttyslot() and valloc() functions, which we never declared 202 * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which 203 * we also do not have, and mktemp(), are to be deleted. 204 */ 205 #if __XSI_VISIBLE 206 /* XXX XSI requires pollution from <sys/wait.h> here. We'd rather not. */ 207 long a64l(const char *); 208 double drand48(void); 209 double erand48(unsigned short[3]); 210 #if 0 211 #if __BSD_VISIBLE || (__XSI_VISIBLE && __XSI_VISIBLE < 700) 212 char *ecvt(double, int, int * __restrict, int * __restrict); /* LEGACY */ 213 char *fcvt(double, int, int * __restrict, int * __restrict); /* LEGACY */ 214 char *gcvt(double, int, int * __restrict, int * __restrict); /* LEGACY */ 215 #endif 216 #endif 217 int grantpt(int); 218 char *initstate(unsigned long /* XSI requires u_int */, char *, long); 219 long jrand48(unsigned short[3]); 220 char *l64a(long); 221 void lcong48(unsigned short[7]); 222 long lrand48(void); 223 #if __BSD_VISIBLE || (__XSI_VISIBLE && __XSI_VISIBLE < 700) 224 #if !defined(_MKTEMP_DECLARED) 225 char *mktemp(char *); /* LEGACY */ 226 #define _MKTEMP_DECLARED 227 #endif 228 #endif 229 long mrand48(void); 230 long nrand48(unsigned short[3]); 231 int posix_openpt(int); 232 char *ptsname(int); 233 int putenv(char *); 234 long random(void); 235 char *realpath(const char * __restrict, char * __restrict); 236 unsigned short 237 *seed48(unsigned short[3]); 238 int setkey(const char *); 239 char *setstate(/* const */ char *); 240 void srand48(long); 241 void srandom(unsigned long); 242 int unlockpt(int); 243 #endif /* __XSI_VISIBLE */ 244 245 #if __BSD_VISIBLE 246 /* extern const char *_malloc_options; 247 extern void (*_malloc_message)(const char *, const char *, const char *, 248 const char *); */ 249 250 /* 251 * The alloca() function can't be implemented in C, and on some 252 * platforms it can't be implemented at all as a callable function. 253 * The GNU C compiler provides a built-in alloca() which we can use. 254 * On platforms where alloca() is not in libc, programs which use it 255 * will fail to link when compiled with non-GNU compilers. 256 */ 257 #if __GNUC__ >= 2 258 #undef alloca /* some GNU bits try to get cute and define this on their own */ 259 #define alloca(sz) __builtin_alloca(sz) 260 #endif 261 262 __uint32_t 263 arc4random(void); 264 void arc4random_addrandom(__uint8_t *, size_t); 265 void arc4random_buf(void *, size_t); 266 void arc4random_stir(void); 267 __uint32_t 268 arc4random_uniform(__uint32_t); 269 char *getbsize(int *, long *); 270 271 /* getcap(3) functions */ 272 char *cgetcap(char *, const char *, int); 273 int cgetclose(void); 274 int cgetent(char **, char **, const char *); 275 int cgetfirst(char **, char **); 276 int cgetmatch(const char *, const char *); 277 int cgetnext(char **, char **); 278 int cgetnum(char *, const char *, long *); 279 int cgetset(const char *); 280 int cgetstr(char *, const char *, char **); 281 int cgetustr(char *, const char *, char **); 282 283 int daemon(int, int); 284 char *devname(dev_t, mode_t); 285 char *devname_r(dev_t, mode_t, char *, size_t); 286 char *fdevname(int); 287 int fdevname_r(int, char *, size_t); 288 void freezero(void *, size_t); 289 int getloadavg(double [], int); 290 const char * 291 getprogname(void); 292 293 int heapsort(void *, size_t, size_t, int (*)(const void *, const void *)); 294 int l64a_r(long, char *, int); 295 int mergesort(void *, size_t, size_t, int (*)(const void *, const void *)); 296 int mkostemp(char *, int); 297 int mkostemps(char *, int, int); 298 void qsort_r(void *, size_t, size_t, void *, 299 int (*)(void *, const void *, const void *)); 300 int radixsort(const unsigned char **, int, const unsigned char *, 301 unsigned int); 302 void *reallocarray(void *, size_t, size_t) __heedresult __alloc_size2(2, 3); 303 void *recallocarray(void *, size_t, size_t, size_t) __heedresult 304 __alloc_size2(3, 4); 305 void *reallocf(void *, size_t) __heedresult __alloc_size(2); 306 int rpmatch(const char *); 307 void setprogname(const char *); 308 int sradixsort(const unsigned char **, int, const unsigned char *, 309 unsigned int); 310 void sranddev(void); 311 void srandomdev(void); 312 long long 313 strsuftoll(const char *, const char *, long long, long long); 314 long long 315 strsuftollx(const char *, const char *, long long, long long, char *, 316 size_t); 317 long long 318 strtonum(const char *, long long, long long, const char **); 319 320 /* Deprecated interfaces. */ 321 #if !defined(_KERNEL_VIRTUAL) 322 __int64_t 323 strtoq(const char *, char **, int); 324 __uint64_t 325 strtouq(const char *, char **, int); 326 #endif 327 328 extern char *suboptarg; /* getsubopt(3) external variable */ 329 #endif /* __BSD_VISIBLE */ 330 331 #if __EXT1_VISIBLE 332 /* K.3.6 */ 333 typedef void (*constraint_handler_t)(const char * __restrict, 334 void * __restrict, errno_t); 335 /* K.3.6.1.1 */ 336 constraint_handler_t set_constraint_handler_s(constraint_handler_t handler); 337 /* K.3.6.1.2 */ 338 _Noreturn void abort_handler_s(const char * __restrict, void * __restrict, 339 errno_t); 340 /* K3.6.1.3 */ 341 void ignore_handler_s(const char * __restrict, void * __restrict, errno_t); 342 #endif /* __EXT1_VISIBLE */ 343 __END_DECLS 344 345 #endif /* !_STDLIB_H_ */ 346