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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)stdlib.h 8.5 (Berkeley) 5/19/95 34 * $FreeBSD: src/include/stdlib.h,v 1.67 2008/07/22 11:40:42 ache Exp $ 35 */ 36 37 #ifndef _STDLIB_H_ 38 #define _STDLIB_H_ 39 40 #include <sys/cdefs.h> 41 #include <sys/_null.h> 42 #include <sys/types.h> 43 44 #if __BSD_VISIBLE 45 #ifndef _RUNE_T_DECLARED 46 typedef __rune_t rune_t; 47 #define _RUNE_T_DECLARED 48 #endif 49 #endif 50 51 #ifndef _SIZE_T_DECLARED 52 typedef __size_t size_t; 53 #define _SIZE_T_DECLARED 54 #endif 55 56 #ifndef __cplusplus 57 #ifndef _WCHAR_T_DECLARED 58 typedef __wchar_t wchar_t; 59 #define _WCHAR_T_DECLARED 60 #endif 61 #endif 62 63 typedef struct { 64 int quot; /* quotient */ 65 int rem; /* remainder */ 66 } div_t; 67 68 typedef struct { 69 long quot; 70 long rem; 71 } ldiv_t; 72 73 #define EXIT_FAILURE 1 74 #define EXIT_SUCCESS 0 75 76 #define RAND_MAX 0x7fffffff 77 78 __BEGIN_DECLS 79 #ifdef _XLOCALE_H_ 80 #include <xlocale/_stdlib.h> 81 #endif 82 extern int __mb_cur_max; 83 extern int ___mb_cur_max(void); 84 #define MB_CUR_MAX (___mb_cur_max()) 85 86 void abort(void) __dead2; 87 /* void abort2(const char *, int, void **) __dead2; */ 88 #if !defined(_KERNEL_VIRTUAL) 89 int abs(int) __pure2; 90 #endif 91 int atexit(void (*)(void)); 92 double atof(const char *); 93 int atoi(const char *); 94 long atol(const char *); 95 void *bsearch(const void *, const void *, size_t, 96 size_t, int (*)(const void *, const void *)); 97 void *calloc(size_t, size_t) __heedresult; 98 div_t div(int, int) __pure2; 99 void exit(int) __dead2; 100 void free(void *); 101 char *getenv(const char *); 102 #if !defined(_KERNEL_VIRTUAL) 103 long labs(long) __pure2; 104 #endif 105 ldiv_t ldiv(long, long) __pure2; 106 void *malloc(size_t) __heedresult; 107 int posix_memalign(void **, size_t, size_t); 108 int mblen(const char *, size_t); 109 size_t mbstowcs(wchar_t * __restrict , const char * __restrict, size_t); 110 int mbtowc(wchar_t * __restrict, const char * __restrict, size_t); 111 void qsort(void *, size_t, size_t, int (*)(const void *, const void *)); 112 int rand(void); 113 void *realloc(void *, size_t) __heedresult; 114 void srand(unsigned); 115 double strtod(const char * __restrict, char ** __restrict); 116 float strtof(const char * __restrict, char ** __restrict); 117 #if !defined(_KERNEL_VIRTUAL) 118 long strtol(const char * __restrict, char ** __restrict, int); 119 #endif 120 long double 121 strtold(const char * __restrict, char ** __restrict); 122 #if !defined(_KERNEL_VIRTUAL) 123 unsigned long 124 strtoul(const char * __restrict, char ** __restrict, int); 125 #endif 126 int system(const char *); 127 int wctomb(char *, wchar_t); 128 size_t wcstombs(char * __restrict, const wchar_t * __restrict, size_t); 129 130 /* 131 * Functions added in C99 which we make conditionally available in the 132 * BSD^C89 namespace if the compiler supports `long long'. 133 * The #if test is more complicated than it ought to be because 134 * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long' 135 * is not supported in the compilation environment (which therefore means 136 * that it can't really be ISO C99). 137 * 138 * (The only other extension made by C99 in this header is _Exit().) 139 */ 140 #if __ISO_C_VISIBLE >= 1999 141 #ifdef __LONG_LONG_SUPPORTED 142 /* LONGLONG */ 143 typedef struct { 144 long long quot; 145 long long rem; 146 } lldiv_t; 147 148 /* LONGLONG */ 149 long long 150 atoll(const char *); 151 /* LONGLONG */ 152 long long 153 llabs(long long) __pure2; 154 /* LONGLONG */ 155 lldiv_t lldiv(long long, long long) __pure2; 156 /* LONGLONG */ 157 long long 158 strtoll(const char * __restrict, char ** __restrict, int); 159 /* LONGLONG */ 160 unsigned long long 161 strtoull(const char * __restrict, char ** __restrict, int); 162 #endif /* __LONG_LONG_SUPPORTED */ 163 164 void _Exit(int) __dead2; 165 #endif /* __ISO_C_VISIBLE >= 1999 */ 166 167 /* 168 * Extensions made by POSIX relative to C. We don't know yet which edition 169 * of POSIX made these extensions, so assume they've always been there until 170 * research can be done. 171 */ 172 #if __POSIX_VISIBLE /* >= ??? */ 173 /*int posix_memalign(void **, size_t, size_t); (ADV) */ 174 int rand_r(unsigned *); /* (TSF) */ 175 int setenv(const char *, const char *, int); 176 int unsetenv(const char *); 177 #endif 178 179 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE 180 #ifndef _MKDTEMP_DECLARED 181 char *mkdtemp(char *); 182 #define _MKDTEMP_DECLARED 183 #endif 184 #ifndef _MKSTEMP_DECLARED 185 int mkstemp(char *); 186 #define _MKSTEMP_DECLARED 187 #endif 188 #endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ 189 190 /* 191 * The only changes to the XSI namespace in revision 6 were the deletion 192 * of the ttyslot() and valloc() functions, which we never declared 193 * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which 194 * we also do not have, and mktemp(), are to be deleted. 195 */ 196 #if __XSI_VISIBLE 197 /* XXX XSI requires pollution from <sys/wait.h> here. We'd rather not. */ 198 long a64l(const char *); 199 double drand48(void); 200 /* char *ecvt(double, int, int * __restrict, int * __restrict); */ 201 double erand48(unsigned short[3]); 202 /* char *fcvt(double, int, int * __restrict, int * __restrict); */ 203 /* char *gcvt(double, int, int * __restrict, int * __restrict); */ 204 int getsubopt(char **, char *const *, char **); 205 int grantpt(int); 206 char *initstate(unsigned long /* XSI requires u_int */, char *, long); 207 long jrand48(unsigned short[3]); 208 char *l64a(long); 209 void lcong48(unsigned short[7]); 210 long lrand48(void); 211 #if !defined(_MKTEMP_DECLARED) && (__BSD_VISIBLE || __XSI_VISIBLE <= 600) 212 char *mktemp(char *); 213 #define _MKTEMP_DECLARED 214 #endif 215 long mrand48(void); 216 long nrand48(unsigned short[3]); 217 int posix_openpt(int); 218 char *ptsname(int); 219 int putenv(char *); 220 long random(void); 221 char *realpath(const char * __restrict, char * __restrict); 222 unsigned short 223 *seed48(unsigned short[3]); 224 int setkey(const char *); 225 char *setstate(/* const */ char *); 226 void srand48(long); 227 void srandom(unsigned long); 228 int unlockpt(int); 229 #endif /* __XSI_VISIBLE */ 230 231 #if __BSD_VISIBLE 232 /* extern const char *_malloc_options; 233 extern void (*_malloc_message)(const char *, const char *, const char *, 234 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 __uint32_t 253 arc4random(void); 254 void arc4random_addrandom(__uint8_t *, size_t); 255 void arc4random_buf(void *, size_t); 256 void arc4random_stir(void); 257 __uint32_t 258 arc4random_uniform(__uint32_t); 259 char *getbsize(int *, long *); 260 261 /* getcap(3) functions */ 262 char *cgetcap(char *, const char *, int); 263 int cgetclose(void); 264 int cgetent(char **, char **, const char *); 265 int cgetfirst(char **, char **); 266 int cgetmatch(const char *, const char *); 267 int cgetnext(char **, char **); 268 int cgetnum(char *, const char *, long *); 269 int cgetset(const char *); 270 int cgetstr(char *, const char *, char **); 271 int cgetustr(char *, const char *, char **); 272 273 int daemon(int, int); 274 char *devname(dev_t, mode_t); 275 char *devname_r(dev_t, mode_t, char *, size_t); 276 char *fdevname(int); 277 int fdevname_r(int, char *, size_t); 278 int getloadavg(double [], int); 279 const char * 280 getprogname(void); 281 282 int heapsort(void *, size_t, size_t, int (*)(const void *, const void *)); 283 int l64a_r(long, char *, int); 284 int mergesort(void *, size_t, size_t, int (*)(const void *, const void *)); 285 void qsort_r(void *, size_t, size_t, void *, 286 int (*)(void *, const void *, const void *)); 287 int radixsort(const unsigned char **, int, const unsigned char *, 288 unsigned int); 289 void *reallocf(void *, size_t) __heedresult; 290 int rpmatch(const char *); 291 void setprogname(const char *); 292 int sradixsort(const unsigned char **, int, const unsigned char *, 293 unsigned int); 294 void sranddev(void); 295 void srandomdev(void); 296 long long 297 strtonum(const char *, long long, long long, const char **); 298 299 /* Deprecated interfaces. */ 300 #if !defined(_KERNEL_VIRTUAL) 301 __int64_t 302 strtoq(const char *, char **, int); 303 __uint64_t 304 strtouq(const char *, char **, int); 305 #endif 306 307 extern char *suboptarg; /* getsubopt(3) external variable */ 308 #endif /* __BSD_VISIBLE */ 309 310 /* 311 * C11 functions. 312 */ 313 #if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L || __BSD_VISIBLE 314 int at_quick_exit(void (*func)(void)); 315 _Noreturn void 316 quick_exit(int); 317 void *aligned_alloc(size_t, size_t) __heedresult; 318 #endif /* __ISO_C_VISIBLE >= 2011 */ 319 320 __END_DECLS 321 322 #endif /* !_STDLIB_H_ */ 323