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; 49 #define _SIZE_T_DECLARED 50 #endif 51 52 #ifndef __cplusplus 53 #ifndef _WCHAR_T_DECLARED 54 typedef __wchar_t wchar_t; 55 #define _WCHAR_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 (___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) __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) __heedresult; 103 int posix_memalign(void **, size_t, size_t); 104 int mblen(const char *, size_t); 105 size_t mbstowcs(wchar_t * __restrict , const char * __restrict, size_t); 106 int mbtowc(wchar_t * __restrict, const char * __restrict, size_t); 107 void qsort(void *, size_t, size_t, int (*)(const void *, const void *)); 108 int rand(void); 109 void *realloc(void *, size_t) __heedresult; 110 void srand(unsigned); 111 double strtod(const char * __restrict, char ** __restrict); 112 float strtof(const char * __restrict, char ** __restrict); 113 #if !defined(_KERNEL_VIRTUAL) 114 long strtol(const char * __restrict, char ** __restrict, int); 115 #endif 116 long double 117 strtold(const char * __restrict, char ** __restrict); 118 #if !defined(_KERNEL_VIRTUAL) 119 unsigned long 120 strtoul(const char * __restrict, char ** __restrict, int); 121 #endif 122 int system(const char *); 123 int wctomb(char *, wchar_t); 124 size_t wcstombs(char * __restrict, const wchar_t * __restrict, size_t); 125 126 /* 127 * Functions added in C99 which we make conditionally available in the 128 * BSD^C89 namespace if the compiler supports `long long'. 129 * The #if test is more complicated than it ought to be because 130 * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long' 131 * is not supported in the compilation environment (which therefore means 132 * that it can't really be ISO C99). 133 * 134 * (The only other extension made by C99 in this header is _Exit().) 135 */ 136 #if __ISO_C_VISIBLE >= 1999 137 #ifdef __LONG_LONG_SUPPORTED 138 /* LONGLONG */ 139 typedef struct { 140 long long quot; 141 long long rem; 142 } lldiv_t; 143 144 /* LONGLONG */ 145 long long 146 atoll(const char *); 147 /* LONGLONG */ 148 long long 149 llabs(long long) __pure2; 150 /* LONGLONG */ 151 lldiv_t lldiv(long long, long long) __pure2; 152 /* LONGLONG */ 153 long long 154 strtoll(const char * __restrict, char ** __restrict, int); 155 /* LONGLONG */ 156 unsigned long long 157 strtoull(const char * __restrict, char ** __restrict, int); 158 #endif /* __LONG_LONG_SUPPORTED */ 159 160 void _Exit(int) __dead2; 161 #endif /* __ISO_C_VISIBLE >= 1999 */ 162 163 /* 164 * Extensions made by POSIX relative to C. We don't know yet which edition 165 * of POSIX made these extensions, so assume they've always been there until 166 * research can be done. 167 */ 168 #if __POSIX_VISIBLE /* >= ??? */ 169 /*int posix_memalign(void **, size_t, size_t); (ADV) */ 170 int rand_r(unsigned *); /* (TSF) */ 171 int setenv(const char *, const char *, int); 172 int unsetenv(const char *); 173 #endif 174 175 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE 176 int getsubopt(char **, char *const *, char **); 177 #ifndef _MKDTEMP_DECLARED 178 char *mkdtemp(char *); 179 #define _MKDTEMP_DECLARED 180 #endif 181 #ifndef _MKSTEMP_DECLARED 182 int mkstemp(char *); 183 #define _MKSTEMP_DECLARED 184 #endif 185 #endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ 186 187 /* 188 * The only changes to the XSI namespace in revision 6 were the deletion 189 * of the ttyslot() and valloc() functions, which we never declared 190 * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which 191 * we also do not have, and mktemp(), are to be deleted. 192 */ 193 #if __XSI_VISIBLE 194 /* XXX XSI requires pollution from <sys/wait.h> here. We'd rather not. */ 195 long a64l(const char *); 196 double drand48(void); 197 double erand48(unsigned short[3]); 198 #if 0 199 #if __BSD_VISIBLE || __XSI_VISIBLE <= 600 200 char *ecvt(double, int, int * __restrict, int * __restrict); /* LEGACY */ 201 char *fcvt(double, int, int * __restrict, int * __restrict); /* LEGACY */ 202 char *gcvt(double, int, int * __restrict, int * __restrict); /* LEGACY */ 203 #endif 204 #endif 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 *); /* LEGACY */ 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 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