1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 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 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28#ifndef _STDLIB_H_ 29#define _STDLIB_H_ 30 31#include <sys/cdefs.h> 32 33/* wchar_t is required in stdlib.h according to POSIX. 34 * note that defining __need_wchar_t prevents stddef.h 35 * to define all other symbols it does normally */ 36#define __need_wchar_t 37#include <stddef.h> 38 39#include <stddef.h> 40#include <string.h> 41#include <alloca.h> 42#include <strings.h> 43#include <memory.h> 44 45__BEGIN_DECLS 46 47#define EXIT_FAILURE 1 48#define EXIT_SUCCESS 0 49 50extern __noreturn void exit(int); 51extern __noreturn void abort(void); 52extern int atexit(void (*)(void)); 53 54extern char *getenv(const char *); 55extern int putenv(const char *); 56extern int setenv(const char *, const char *, int); 57extern int unsetenv(const char *); 58 59extern char *mktemp (char *); 60extern int mkstemp (char *); 61 62extern long strtol(const char *, char **, int); 63extern long long strtoll(const char *, char **, int); 64extern unsigned long strtoul(const char *, char **, int); 65extern unsigned long long strtoull(const char *, char **, int); 66extern double strtod(const char *nptr, char **endptr); 67 68static __inline__ float strtof(const char *nptr, char **endptr) 69{ 70 return (float)strtod(nptr, endptr); 71} 72 73extern int atoi(const char *); 74extern long atol(const char *); 75extern long long atoll(const char *); 76 77static __inline__ double atof(const char *nptr) 78{ 79 return (strtod(nptr, NULL)); 80} 81 82static __inline__ int abs(int __n) { 83 return (__n < 0) ? -__n : __n; 84} 85 86static __inline__ long labs(long __n) { 87 return (__n < 0L) ? -__n : __n; 88} 89 90static __inline__ long long llabs(long long __n) { 91 return (__n < 0LL) ? -__n : __n; 92} 93 94extern char * realpath(const char *path, char *resolved); 95extern int system(const char * string); 96 97extern void * bsearch(const void *key, const void *base0, 98 size_t nmemb, size_t size, 99 int (*compar)(const void *, const void *)); 100 101extern void qsort(void *, size_t, size_t, int (*)(const void *, const void *)); 102 103extern long jrand48(unsigned short *); 104extern long mrand48(void); 105extern long nrand48(unsigned short *); 106extern long lrand48(void); 107extern unsigned short *seed48(unsigned short*); 108extern double erand48(unsigned short xsubi[3]); 109extern double drand48(void); 110extern void srand48(long); 111extern unsigned int arc4random(void); 112extern void arc4random_stir(void); 113extern void arc4random_addrandom(unsigned char *, int); 114 115#define RAND_MAX 0x7fffffff 116static __inline__ int rand(void) { 117 return (int)lrand48(); 118} 119static __inline__ void srand(unsigned int __s) { 120 srand48(__s); 121} 122static __inline__ long random(void) 123{ 124 return lrand48(); 125} 126static __inline__ void srandom(unsigned int __s) 127{ 128 srand48(__s); 129} 130 131/* Basic PTY functions. These only work if devpts is mounted! */ 132 133extern int unlockpt(int); 134extern char* ptsname(int); 135extern char* ptsname_r(int, char*, size_t); 136extern int getpt(void); 137 138static __inline__ int grantpt(int __fd) 139{ 140 (void)__fd; 141 return 0; /* devpts does this all for us! */ 142} 143 144typedef struct { 145 int quot; 146 int rem; 147} div_t; 148 149extern div_t div(int, int); 150 151typedef struct { 152 long int quot; 153 long int rem; 154} ldiv_t; 155 156extern ldiv_t ldiv(long, long); 157 158typedef struct { 159 long long int quot; 160 long long int rem; 161} lldiv_t; 162 163extern lldiv_t lldiv(long long, long long); 164 165#if 1 /* MISSING FROM BIONIC - ENABLED FOR STLPort and libstdc++-v3 */ 166/* make STLPort happy */ 167extern int mblen(const char *, size_t); 168extern size_t mbstowcs(wchar_t *, const char *, size_t); 169extern int mbtowc(wchar_t *, const char *, size_t); 170 171/* Likewise, make libstdc++-v3 happy. */ 172extern int wctomb(char *, wchar_t); 173extern size_t wcstombs(char *, const wchar_t *, size_t); 174#endif /* MISSING */ 175 176#define MB_CUR_MAX 1 177 178#if 0 /* MISSING FROM BIONIC */ 179extern int on_exit(void (*)(int, void *), void *); 180extern int clearenv(void); 181#endif /* MISSING */ 182 183__END_DECLS 184 185#endif /* _STDLIB_H_ */ 186