stdlib.h revision 228330
11539Srgrimes/*- 21539Srgrimes * Copyright (c) 1990, 1993 31539Srgrimes * The Regents of the University of California. All rights reserved. 41539Srgrimes * 51539Srgrimes * Redistribution and use in source and binary forms, with or without 61539Srgrimes * modification, are permitted provided that the following conditions 71539Srgrimes * are met: 81539Srgrimes * 1. Redistributions of source code must retain the above copyright 91539Srgrimes * notice, this list of conditions and the following disclaimer. 101539Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111539Srgrimes * notice, this list of conditions and the following disclaimer in the 121539Srgrimes * documentation and/or other materials provided with the distribution. 13203964Simp * 3. Neither the name of the University nor the names of its contributors 141539Srgrimes * may be used to endorse or promote products derived from this software 151539Srgrimes * without specific prior written permission. 161539Srgrimes * 171539Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181539Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191539Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201539Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211539Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221539Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231539Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241539Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251539Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261539Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271539Srgrimes * SUCH DAMAGE. 281539Srgrimes * 2923657Speter * @(#)stdlib.h 8.5 (Berkeley) 5/19/95 3055031Sbde * $FreeBSD: head/include/stdlib.h 228330 2011-12-07 21:17:50Z theraven $ 311539Srgrimes */ 321539Srgrimes 331539Srgrimes#ifndef _STDLIB_H_ 347865Sbde#define _STDLIB_H_ 351539Srgrimes 3633861Sbde#include <sys/cdefs.h> 37123257Smarcel#include <sys/_null.h> 38102227Smike#include <sys/_types.h> 3933861Sbde 40103728Swollman#if __BSD_VISIBLE 41102227Smike#ifndef _RUNE_T_DECLARED 42102227Smiketypedef __rune_t rune_t; 43102227Smike#define _RUNE_T_DECLARED 4415483Sbde#endif 4515483Sbde#endif 4615483Sbde 47102227Smike#ifndef _SIZE_T_DECLARED 48102227Smiketypedef __size_t size_t; 49102227Smike#define _SIZE_T_DECLARED 501539Srgrimes#endif 511539Srgrimes 5299640Sobrien#ifndef __cplusplus 53102227Smike#ifndef _WCHAR_T_DECLARED 54102227Smiketypedef __wchar_t wchar_t; 55102227Smike#define _WCHAR_T_DECLARED 561539Srgrimes#endif 5799640Sobrien#endif 581539Srgrimes 591539Srgrimestypedef struct { 60103766Sbde int quot; /* quotient */ 61103766Sbde int rem; /* remainder */ 621539Srgrimes} div_t; 631539Srgrimes 641539Srgrimestypedef struct { 65103766Sbde long quot; 66103766Sbde long rem; 671539Srgrimes} ldiv_t; 681539Srgrimes 691539Srgrimes#define EXIT_FAILURE 1 701539Srgrimes#define EXIT_SUCCESS 0 711539Srgrimes 721539Srgrimes#define RAND_MAX 0x7fffffff 731539Srgrimes 74227753Stheraven__BEGIN_DECLS 751539Srgrimesextern int __mb_cur_max; 76227753Stheravenextern int ___mb_cur_max(void); 77227753Stheraven#define MB_CUR_MAX (___mb_cur_max()) 781539Srgrimes 79228330Stheraven_Noreturn void abort(void); 8093032Simpint abs(int) __pure2; 8193032Simpint atexit(void (*)(void)); 8293032Simpdouble atof(const char *); 8393032Simpint atoi(const char *); 8493032Simplong atol(const char *); 8593032Simpvoid *bsearch(const void *, const void *, size_t, 8693032Simp size_t, int (*)(const void *, const void *)); 87187961Sdasvoid *calloc(size_t, size_t) __malloc_like; 8893032Simpdiv_t div(int, int) __pure2; 89228330Stheraven_Noreturn void exit(int); 9093032Simpvoid free(void *); 9193032Simpchar *getenv(const char *); 9293032Simplong labs(long) __pure2; 9393032Simpldiv_t ldiv(long, long) __pure2; 94187961Sdasvoid *malloc(size_t) __malloc_like; 95103728Swollmanint mblen(const char *, size_t); 96103766Sbdesize_t mbstowcs(wchar_t * __restrict , const char * __restrict, size_t); 97103728Swollmanint mbtowc(wchar_t * __restrict, const char * __restrict, size_t); 9893032Simpvoid qsort(void *, size_t, size_t, 9993032Simp int (*)(const void *, const void *)); 10093032Simpint rand(void); 10193032Simpvoid *realloc(void *, size_t); 10293032Simpvoid srand(unsigned); 103103766Sbdedouble strtod(const char * __restrict, char ** __restrict); 104112163Sdasfloat strtof(const char * __restrict, char ** __restrict); 105103766Sbdelong strtol(const char * __restrict, char ** __restrict, int); 106112163Sdaslong double 107112163Sdas strtold(const char * __restrict, char ** __restrict); 1081539Srgrimesunsigned long 109103012Stjr strtoul(const char * __restrict, char ** __restrict, int); 11093032Simpint system(const char *); 11193032Simpint wctomb(char *, wchar_t); 112103012Stjrsize_t wcstombs(char * __restrict, const wchar_t * __restrict, size_t); 1131539Srgrimes 114103728Swollman/* 115103728Swollman * Functions added in C99 which we make conditionally available in the 116103728Swollman * BSD^C89 namespace if the compiler supports `long long'. 117103728Swollman * The #if test is more complicated than it ought to be because 118103728Swollman * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long' 119103728Swollman * is not supported in the compilation environment (which therefore means 120103728Swollman * that it can't really be ISO C99). 121103728Swollman * 122103728Swollman * (The only other extension made by C99 in thie header is _Exit().) 123103728Swollman */ 124103728Swollman#if __ISO_C_VISIBLE >= 1999 125103728Swollman#ifdef __LONG_LONG_SUPPORTED 126103728Swollman/* LONGLONG */ 127103728Swollmantypedef struct { 128103728Swollman long long quot; 129103728Swollman long long rem; 130103728Swollman} lldiv_t; 13169201Sphk 132103728Swollman/* LONGLONG */ 133103728Swollmanlong long 134103728Swollman atoll(const char *); 135103728Swollman/* LONGLONG */ 136103728Swollmanlong long 137103728Swollman llabs(long long) __pure2; 138103728Swollman/* LONGLONG */ 139103728Swollmanlldiv_t lldiv(long long, long long) __pure2; 140103728Swollman/* LONGLONG */ 141103766Sbdelong long 142103766Sbde strtoll(const char * __restrict, char ** __restrict, int); 143103728Swollman/* LONGLONG */ 144103728Swollmanunsigned long long 145103766Sbde strtoull(const char * __restrict, char ** __restrict, int); 146103728Swollman#endif /* __LONG_LONG_SUPPORTED */ 147103728Swollman 148228330Stheraven_Noreturn void _Exit(int); 149103728Swollman#endif /* __ISO_C_VISIBLE >= 1999 */ 150103728Swollman 151103728Swollman/* 152228322Stheraven * If we're in a mode greater than C99, expose C1x functions. 153228322Stheraven */ 154228322Stheraven#if __ISO_C_VISIBLE > 1999 155228330Stheraven_Noreturn void quick_exit(int) 156228322Stheravenint 157228322Stheravenat_quick_exit(void (*func)(void)); 158228322Stheraven#endif /* __ISO_C_VISIBLE > 1999 */ 159228322Stheraven/* 160103728Swollman * Extensions made by POSIX relative to C. We don't know yet which edition 161103728Swollman * of POSIX made these extensions, so assume they've always been there until 162103728Swollman * research can be done. 163103728Swollman */ 164103728Swollman#if __POSIX_VISIBLE /* >= ??? */ 165154250Sjasoneint posix_memalign(void **, size_t, size_t); /* (ADV) */ 166103728Swollmanint rand_r(unsigned *); /* (TSF) */ 167206997Skibchar *realpath(const char * __restrict, char * __restrict); 16893032Simpint setenv(const char *, const char *, int); 169171195Sscfint unsetenv(const char *); 170103728Swollman#endif 1711539Srgrimes 172189349Sdas#if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE 173189349Sdasint getsubopt(char **, char *const *, char **); 174189349Sdas#ifndef _MKDTEMP_DECLARED 175189349Sdaschar *mkdtemp(char *); 176189349Sdas#define _MKDTEMP_DECLARED 177189349Sdas#endif 178189349Sdas#ifndef _MKSTEMP_DECLARED 179189349Sdasint mkstemp(char *); 180189349Sdas#define _MKSTEMP_DECLARED 181189349Sdas#endif 182189349Sdas#endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ 183189349Sdas 184103728Swollman/* 185103728Swollman * The only changes to the XSI namespace in revision 6 were the deletion 186103728Swollman * of the ttyslot() and valloc() functions, which FreeBSD never declared 187103728Swollman * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which 188103728Swollman * FreeBSD also does not have, and mktemp(), are to be deleted. 189103728Swollman */ 190103728Swollman#if __XSI_VISIBLE 191103728Swollman/* XXX XSI requires pollution from <sys/wait.h> here. We'd rather not. */ 192153707Strhodeslong a64l(const char *); 19393032Simpdouble drand48(void); 194103766Sbde/* char *ecvt(double, int, int * __restrict, int * __restrict); */ 19593032Simpdouble erand48(unsigned short[3]); 196103766Sbde/* char *fcvt(double, int, int * __restrict, int * __restrict); */ 197103766Sbde/* char *gcvt(double, int, int * __restrict, int * __restrict); */ 198108574Sjmallettint grantpt(int); 199103728Swollmanchar *initstate(unsigned long /* XSI requires u_int */, char *, long); 20093032Simplong jrand48(unsigned short[3]); 201153707Strhodeschar *l64a(long); 20293032Simpvoid lcong48(unsigned short[7]); 20393032Simplong lrand48(void); 204189782Sdas#if !defined(_MKTEMP_DECLARED) && (__BSD_VISIBLE || __XSI_VISIBLE <= 600) 205103728Swollmanchar *mktemp(char *); 206103766Sbde#define _MKTEMP_DECLARED 207103728Swollman#endif 20893032Simplong mrand48(void); 20993032Simplong nrand48(unsigned short[3]); 210108574Sjmallettint posix_openpt(int); 211108574Sjmallettchar *ptsname(int); 212171195Sscfint putenv(char *); 213103728Swollmanlong random(void); 2147865Sbdeunsigned short 21593032Simp *seed48(unsigned short[3]); 216103728Swollman#ifndef _SETKEY_DECLARED 217103728Swollmanint setkey(const char *); 218103728Swollman#define _SETKEY_DECLARED 219103728Swollman#endif 220103728Swollmanchar *setstate(/* const */ char *); 22193032Simpvoid srand48(long); 222103728Swollmanvoid srandom(unsigned long); 223108574Sjmallettint unlockpt(int); 224103728Swollman#endif /* __XSI_VISIBLE */ 2254749Sats 226103728Swollman#if __BSD_VISIBLE 227103728Swollmanextern const char *_malloc_options; 228103766Sbdeextern void (*_malloc_message)(const char *, const char *, const char *, 229103766Sbde const char *); 230103728Swollman 231116397Sdes/* 232116397Sdes * The alloca() function can't be implemented in C, and on some 233116397Sdes * platforms it can't be implemented at all as a callable function. 234116397Sdes * The GNU C compiler provides a built-in alloca() which we can use; 235116397Sdes * in all other cases, provide a prototype, mainly to pacify various 236116397Sdes * incarnations of lint. On platforms where alloca() is not in libc, 237116397Sdes * programs which use it will fail to link when compiled with non-GNU 238116397Sdes * compilers. 239116397Sdes */ 240116831Sobrien#if __GNUC__ >= 2 || defined(__INTEL_COMPILER) 241116831Sobrien#undef alloca /* some GNU bits try to get cute and define this on their own */ 242116397Sdes#define alloca(sz) __builtin_alloca(sz) 243116831Sobrien#elif defined(lint) 244116831Sobrienvoid *alloca(size_t); 245116397Sdes#endif 246116397Sdes 247189820Sdasvoid abort2(const char *, int, void **) __dead2; 24841927Sdt__uint32_t 24993032Simp arc4random(void); 250180658Sachevoid arc4random_addrandom(unsigned char *, int); 251180658Sachevoid arc4random_buf(void *, size_t); 25293032Simpvoid arc4random_stir(void); 253180689Sache__uint32_t 254180689Sache arc4random_uniform(__uint32_t); 255108445Sobrienchar *getbsize(int *, long *); 256103728Swollman /* getcap(3) functions */ 25793032Simpchar *cgetcap(char *, const char *, int); 25893032Simpint cgetclose(void); 25993032Simpint cgetent(char **, char **, const char *); 26093032Simpint cgetfirst(char **, char **); 26193032Simpint cgetmatch(const char *, const char *); 26293032Simpint cgetnext(char **, char **); 26393032Simpint cgetnum(char *, const char *, long *); 26493032Simpint cgetset(const char *); 26593032Simpint cgetstr(char *, const char *, char **); 26693032Simpint cgetustr(char *, const char *, char **); 2671539Srgrimes 26893032Simpint daemon(int, int); 269150052Sstefanfchar *devname(__dev_t, __mode_t); 270150052Sstefanfchar *devname_r(__dev_t, __mode_t, char *, int); 271188497Sedchar *fdevname(int); 272188497Sedchar *fdevname_r(int, char *, int); 27393032Simpint getloadavg(double [], int); 27488399Smike__const char * 27593032Simp getprogname(void); 2761539Srgrimes 27793032Simpint heapsort(void *, size_t, size_t, int (*)(const void *, const void *)); 278153707Strhodesint l64a_r(long, char *, int); 27993032Simpint mergesort(void *, size_t, size_t, int (*)(const void *, const void *)); 280103164Swollmanvoid qsort_r(void *, size_t, size_t, void *, 281103164Swollman int (*)(void *, const void *, const void *)); 28293032Simpint radixsort(const unsigned char **, int, const unsigned char *, 28393032Simp unsigned); 28493032Simpvoid *reallocf(void *, size_t); 285139922Stjrint rpmatch(const char *); 28693032Simpvoid setprogname(const char *); 287103164Swollmanint sradixsort(const unsigned char **, int, const unsigned char *, 288103164Swollman unsigned); 28993032Simpvoid sranddev(void); 29093032Simpvoid srandomdev(void); 291156707Sandrelong long 292156707Sandre strtonum(const char *, long long, long long, const char **); 293103728Swollman 294103728Swollman/* Deprecated interfaces, to be removed in FreeBSD 6.0. */ 295103766Sbde__int64_t 296103766Sbde strtoq(const char *, char **, int); 29741927Sdt__uint64_t 29893032Simp strtouq(const char *, char **, int); 299126136Sache 300126136Sacheextern char *suboptarg; /* getsubopt(3) external variable */ 301103728Swollman#endif /* __BSD_VISIBLE */ 3021539Srgrimes__END_DECLS 3031539Srgrimes 3047865Sbde#endif /* !_STDLIB_H_ */ 305