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)); 53extern int on_exit(void (*)(int, void *), void *); 54 55extern char *getenv(const char *); 56extern int putenv(const char *); 57extern int setenv(const char *, const char *, int); 58extern int unsetenv(const char *); 59extern int clearenv(void); 60 61extern char *mktemp (char *); 62extern int mkstemp (char *); 63 64extern long strtol(const char *, char **, int); 65extern long long strtoll(const char *, char **, int); 66extern unsigned long strtoul(const char *, char **, int); 67extern unsigned long long strtoull(const char *, char **, int); 68extern double strtod(const char *nptr, char **endptr); 69 70static __inline__ float strtof(const char *nptr, char **endptr) 71{ 72 return (float)strtod(nptr, endptr); 73} 74 75extern int atoi(const char *); 76extern long atol(const char *); 77extern long long atoll(const char *); 78 79static __inline__ double atof(const char *nptr) 80{ 81 return (strtod(nptr, NULL)); 82} 83 84static __inline__ int abs(int __n) { 85 return (__n < 0) ? -__n : __n; 86} 87 88static __inline__ long labs(long __n) { 89 return (__n < 0L) ? -__n : __n; 90} 91 92static __inline__ long long llabs(long long __n) { 93 return (__n < 0LL) ? -__n : __n; 94} 95 96extern char * realpath(const char *path, char *resolved); 97extern int system(const char * string); 98 99extern void * bsearch(const void *key, const void *base0, 100 size_t nmemb, size_t size, 101 int (*compar)(const void *, const void *)); 102 103extern void qsort(void *, size_t, size_t, int (*)(const void *, const void *)); 104 105extern long jrand48(unsigned short *); 106extern long mrand48(void); 107extern long nrand48(unsigned short *); 108extern long lrand48(void); 109extern unsigned short *seed48(unsigned short*); 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 int 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/* make STLPort happy */ 166extern int mblen(const char *, size_t); 167extern size_t mbstowcs(wchar_t *, const char *, size_t); 168extern int mbtowc(wchar_t *, const char *, size_t); 169 170/* Likewise, make libstdc++-v3 happy. */ 171extern int wctomb(char *, wchar_t); 172extern size_t wcstombs(char *, const wchar_t *, size_t); 173#define MB_CUR_MAX 1 174 175__END_DECLS 176 177#endif /* _STDLIB_H_ */ 178