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 *); 58extern int clearenv(void); 59 60extern char *mktemp (char *); 61extern int mkstemp (char *); 62 63extern long strtol(const char *, char **, int); 64extern long long strtoll(const char *, char **, int); 65extern unsigned long strtoul(const char *, char **, int); 66extern unsigned long long strtoull(const char *, char **, int); 67extern double strtod(const char *nptr, char **endptr); 68 69static __inline__ float strtof(const char *nptr, char **endptr) 70{ 71 return (float)strtod(nptr, endptr); 72} 73 74extern int atoi(const char *); 75extern long atol(const char *); 76extern long long atoll(const char *); 77 78static __inline__ double atof(const char *nptr) 79{ 80 return (strtod(nptr, NULL)); 81} 82 83static __inline__ int abs(int __n) { 84 return (__n < 0) ? -__n : __n; 85} 86 87static __inline__ long labs(long __n) { 88 return (__n < 0L) ? -__n : __n; 89} 90 91static __inline__ long long llabs(long long __n) { 92 return (__n < 0LL) ? -__n : __n; 93} 94 95extern char * realpath(const char *path, char *resolved); 96extern int system(const char * string); 97 98extern void * bsearch(const void *key, const void *base0, 99 size_t nmemb, size_t size, 100 int (*compar)(const void *, const void *)); 101 102extern void qsort(void *, size_t, size_t, int (*)(const void *, const void *)); 103 104extern long jrand48(unsigned short *); 105extern long mrand48(void); 106extern long nrand48(unsigned short *); 107extern long lrand48(void); 108extern unsigned short *seed48(unsigned short*); 109extern double erand48(unsigned short xsubi[3]); 110extern double drand48(void); 111extern void srand48(long); 112extern unsigned int arc4random(void); 113extern void arc4random_stir(void); 114extern void arc4random_addrandom(unsigned char *, int); 115 116#define RAND_MAX 0x7fffffff 117static __inline__ int rand(void) { 118 return (int)lrand48(); 119} 120static __inline__ void srand(unsigned int __s) { 121 srand48(__s); 122} 123static __inline__ long random(void) 124{ 125 return lrand48(); 126} 127static __inline__ void srandom(unsigned int __s) 128{ 129 srand48(__s); 130} 131 132/* Basic PTY functions. These only work if devpts is mounted! */ 133 134extern int unlockpt(int); 135extern char* ptsname(int); 136extern int ptsname_r(int, char*, size_t); 137extern int getpt(void); 138 139static __inline__ int grantpt(int __fd __attribute((unused))) 140{ 141 (void)__fd; 142 return 0; /* devpts does this all for us! */ 143} 144 145typedef struct { 146 int quot; 147 int rem; 148} div_t; 149 150extern div_t div(int, int); 151 152typedef struct { 153 long int quot; 154 long int rem; 155} ldiv_t; 156 157extern ldiv_t ldiv(long, long); 158 159typedef struct { 160 long long int quot; 161 long long int rem; 162} lldiv_t; 163 164extern lldiv_t lldiv(long long, long long); 165 166#if 1 /* MISSING FROM BIONIC - ENABLED FOR STLPort and libstdc++-v3 */ 167/* make STLPort happy */ 168extern int mblen(const char *, size_t); 169extern size_t mbstowcs(wchar_t *, const char *, size_t); 170extern int mbtowc(wchar_t *, const char *, size_t); 171 172/* Likewise, make libstdc++-v3 happy. */ 173extern int wctomb(char *, wchar_t); 174extern size_t wcstombs(char *, const wchar_t *, size_t); 175#endif /* MISSING */ 176 177#define MB_CUR_MAX 1 178 179#if 0 /* MISSING FROM BIONIC */ 180extern int on_exit(void (*)(int, void *), void *); 181#endif /* MISSING */ 182 183__END_DECLS 184 185#endif /* _STDLIB_H_ */ 186