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 * $DragonFly: src/include/stdlib.h,v 1.22 2008/06/05 17:53:10 swildner Exp $ 36 */ 37 38 #ifndef _STDLIB_H_ 39 #define _STDLIB_H_ 40 41 #include <sys/cdefs.h> 42 #include <sys/_null.h> 43 #include <sys/types.h> 44 45 #ifndef _SIZE_T_DECLARED 46 typedef __size_t size_t; 47 #define _SIZE_T_DECLARED 48 #endif 49 50 #ifndef __cplusplus 51 #ifndef _WCHAR_T_DECLARED 52 typedef __wchar_t wchar_t; 53 #define _WCHAR_T_DECLARED 54 #endif 55 #endif 56 57 typedef struct { 58 int quot; /* quotient */ 59 int rem; /* remainder */ 60 } div_t; 61 62 typedef struct { 63 long quot; 64 long rem; 65 } ldiv_t; 66 67 #define EXIT_FAILURE 1 68 #define EXIT_SUCCESS 0 69 70 #define RAND_MAX 0x7fffffff 71 72 extern int __mb_cur_max; 73 #define MB_CUR_MAX __mb_cur_max 74 75 __BEGIN_DECLS 76 void abort(void) __dead2; 77 /* void abort2(const char *, int, void **) __dead2; */ 78 int abs(int) __pure2; 79 int atexit(void (*)(void)); 80 double atof(const char *); 81 int atoi(const char *); 82 long atol(const char *); 83 void *bsearch(const void *, const void *, size_t, 84 size_t, int (*)(const void *, const void *)); 85 void *calloc(size_t, size_t); 86 div_t div(int, int) __pure2; 87 void exit(int) __dead2; 88 void free(void *); 89 char *getenv(const char *); 90 long labs(long) __pure2; 91 ldiv_t ldiv(long, long) __pure2; 92 void *malloc(size_t); 93 int mblen(const char *, size_t); 94 size_t mbstowcs(wchar_t * __restrict , const char * __restrict, size_t); 95 int mbtowc(wchar_t * __restrict, const char * __restrict, size_t); 96 void qsort(void *, size_t, size_t, int (*)(const void *, const void *)); 97 int rand(void); 98 void *realloc(void *, size_t); 99 void srand(unsigned); 100 double strtod(const char * __restrict, char ** __restrict); 101 float strtof(const char * __restrict, char ** __restrict); 102 #if !defined(_KERNEL_VIRTUAL) 103 long strtol(const char * __restrict, char ** __restrict, int); 104 #endif 105 long double 106 strtold(const char * __restrict, char ** __restrict); 107 #if !defined(_KERNEL_VIRTUAL) 108 unsigned long 109 strtoul(const char * __restrict, char ** __restrict, int); 110 #endif 111 int system(const char *); 112 int wctomb(char *, wchar_t); 113 size_t wcstombs(char * __restrict, const wchar_t * __restrict, size_t); 114 115 /* 116 * Functions added in C99 which we make conditionally available in the 117 * BSD^C89 namespace if the compiler supports `long long'. 118 * The #if test is more complicated than it ought to be because 119 * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long' 120 * is not supported in the compilation environment (which therefore means 121 * that it can't really be ISO C99). 122 * 123 * (The only other extension made by C99 in this header is _Exit().) 124 */ 125 #if __ISO_C_VISIBLE >= 1999 126 #ifdef __LONG_LONG_SUPPORTED 127 /* LONGLONG */ 128 typedef struct { 129 long long quot; 130 long long rem; 131 } lldiv_t; 132 133 /* LONGLONG */ 134 long long 135 atoll(const char *); 136 /* LONGLONG */ 137 long long 138 llabs(long long) __pure2; 139 /* LONGLONG */ 140 lldiv_t lldiv(long long, long long) __pure2; 141 /* LONGLONG */ 142 long long 143 strtoll(const char * __restrict, char ** __restrict, int); 144 /* LONGLONG */ 145 unsigned long long 146 strtoull(const char * __restrict, char ** __restrict, int); 147 #endif /* __LONG_LONG_SUPPORTED */ 148 149 void _Exit(int) __dead2; 150 #endif /* __ISO_C_VISIBLE >= 1999 */ 151 152 /* 153 * Extensions made by POSIX relative to C. We don't know yet which edition 154 * of POSIX made these extensions, so assume they've always been there until 155 * research can be done. 156 */ 157 #if __POSIX_VISIBLE /* >= ??? */ 158 /*int posix_memalign(void **, size_t, size_t); (ADV) */ 159 int rand_r(unsigned *); /* (TSF) */ 160 int setenv(const char *, const char *, int); 161 int unsetenv(const char *); 162 #endif 163 164 /* 165 * The only changes to the XSI namespace in revision 6 were the deletion 166 * of the ttyslot() and valloc() functions, which we never declared 167 * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which 168 * we also do not have, and mktemp(), are to be deleted. 169 */ 170 #if __XSI_VISIBLE 171 /* XXX XSI requires pollution from <sys/wait.h> here. We'd rather not. */ 172 long a64l(const char *); 173 double drand48(void); 174 /* char *ecvt(double, int, int * __restrict, int * __restrict); */ 175 double erand48(unsigned short[3]); 176 /* char *fcvt(double, int, int * __restrict, int * __restrict); */ 177 /* char *gcvt(double, int, int * __restrict, int * __restrict); */ 178 int getsubopt(char **, char *const *, char **); 179 int grantpt(int); 180 char *initstate(unsigned long /* XSI requires u_int */, char *, long); 181 long jrand48(unsigned short[3]); 182 char *l64a(long); 183 void lcong48(unsigned short[7]); 184 long lrand48(void); 185 int mkstemp(char *); 186 long mrand48(void); 187 long nrand48(unsigned short[3]); 188 /* int posix_openpt(int); */ 189 /* char *ptsname(int); */ 190 int putenv(char *); 191 long random(void); 192 char *realpath(const char *, char resolved_path[]); 193 unsigned short 194 *seed48(unsigned short[3]); 195 int setkey(const char *); 196 char *setstate(/* const */ char *); 197 void srand48(long); 198 void srandom(unsigned long); 199 /* int unlockpt(int); */ 200 #endif /* __XSI_VISIBLE */ 201 202 #if __BSD_VISIBLE 203 /* extern const char *_malloc_options; 204 extern void (*_malloc_message)(const char *, const char *, const char *, 205 const char *); */ 206 207 /* 208 * The alloca() function can't be implemented in C, and on some 209 * platforms it can't be implemented at all as a callable function. 210 * The GNU C compiler provides a built-in alloca() which we can use; 211 * in all other cases, provide a prototype, mainly to pacify various 212 * incarnations of lint. On platforms where alloca() is not in libc, 213 * programs which use it will fail to link when compiled with non-GNU 214 * compilers. 215 */ 216 #if __GNUC__ >= 2 || defined(__INTEL_COMPILER) 217 #undef alloca /* some GNU bits try to get cute and define this on their own */ 218 #define alloca(sz) __builtin_alloca(sz) 219 #elif defined(lint) 220 void *alloca(size_t); 221 #endif 222 223 __uint32_t 224 arc4random(void); 225 void arc4random_addrandom(__uint8_t *, size_t); 226 void arc4random_buf(void *, size_t); 227 void arc4random_stir(void); 228 __uint32_t 229 arc4random_uniform(__uint32_t); 230 char *getbsize(int *, long *); 231 /* getcap(3) functions */ 232 char *cgetcap(char *, char *, int); 233 int cgetclose(void); 234 int cgetent(char **, char **, char *); 235 int cgetfirst(char **, char **); 236 int cgetmatch(char *, char *); 237 int cgetnext(char **, char **); 238 int cgetnum(char *, char *, long *); 239 int cgetset(char *); 240 int cgetstr(char *, char *, char **); 241 int cgetustr(char *, char *, char **); 242 243 int daemon(int, int); 244 char *devname(dev_t, mode_t); 245 char *devname_r(dev_t, mode_t, char *, size_t); 246 int getloadavg(double [], int); 247 __const char * 248 getprogname(void); 249 250 int heapsort(void *, size_t, size_t, int (*)(const void *, const void *)); 251 int l64a_r(long, char *, int); 252 int mergesort(void *, size_t, size_t, int (*)(const void *, const void *)); 253 void qsort_r(void *, size_t, size_t, void *, 254 int (*)(void *, const void *, const void *)); 255 int radixsort(const unsigned char **, int, const unsigned char *, 256 unsigned int); 257 void *reallocf(void *, size_t); 258 int rpmatch(const char *); 259 void setprogname(const char *); 260 int sradixsort(const unsigned char **, int, const unsigned char *, 261 unsigned int); 262 void sranddev(void); 263 void srandomdev(void); 264 long long 265 strtonum(const char *, long long, long long, const char **); 266 267 /* Deprecated interfaces. */ 268 #if !defined(_KERNEL_VIRTUAL) 269 __int64_t 270 strtoq(const char *, char **, int); 271 __uint64_t 272 strtouq(const char *, char **, int); 273 #endif 274 275 extern char *suboptarg; /* getsubopt(3) external variable */ 276 #endif /* __BSD_VISIBLE */ 277 __END_DECLS 278 279 #endif /* !_STDLIB_H_ */ 280