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
29#ifndef _STDLIB_H
30#define _STDLIB_H
31
32#include <sys/cdefs.h>
33#include <xlocale.h>
34
35#include <alloca.h>
36#include <malloc.h>
37#include <stddef.h>
38
39__BEGIN_DECLS
40
41#define EXIT_FAILURE 1
42#define EXIT_SUCCESS 0
43
44extern __noreturn void abort(void);
45extern __noreturn void exit(int);
46extern __noreturn void _Exit(int);
47extern int atexit(void (*)(void));
48
49#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L
50int at_quick_exit(void (*)(void));
51void quick_exit(int) __noreturn;
52#endif
53
54extern char* getenv(const char*);
55extern int putenv(char*);
56extern int setenv(const char*, const char*, int);
57extern int unsetenv(const char*);
58extern int clearenv(void);
59
60extern char* mkdtemp(char*);
61extern char* mktemp(char*) __attribute__((deprecated("mktemp is unsafe, use mkstemp or tmpfile instead")));
62
63extern int mkostemp64(char*, int);
64extern int mkostemp(char*, int);
65extern int mkostemps64(char*, int, int);
66extern int mkostemps(char*, int, int);
67extern int mkstemp64(char*);
68extern int mkstemp(char*);
69extern int mkstemps64(char*, int);
70extern int mkstemps(char*, int);
71
72extern long strtol(const char *, char **, int);
73extern long long strtoll(const char *, char **, int);
74extern unsigned long strtoul(const char *, char **, int);
75extern unsigned long long strtoull(const char *, char **, int);
76
77extern int posix_memalign(void **memptr, size_t alignment, size_t size);
78
79extern double atof(const char*) __INTRODUCED_IN(21);
80
81extern double strtod(const char*, char**) __LIBC_ABI_PUBLIC__;
82extern float strtof(const char*, char**) __LIBC_ABI_PUBLIC__ __INTRODUCED_IN(21);
83extern long double strtold(const char*, char**) __LIBC_ABI_PUBLIC__;
84
85extern long double strtold_l(const char *, char **, locale_t) __LIBC_ABI_PUBLIC__;
86extern long long strtoll_l(const char *, char **, int, locale_t) __LIBC_ABI_PUBLIC__;
87extern unsigned long long strtoull_l(const char *, char **, int, locale_t) __LIBC_ABI_PUBLIC__;
88
89extern int atoi(const char*) __purefunc;
90extern long atol(const char*) __purefunc;
91extern long long atoll(const char*) __purefunc;
92
93extern int abs(int) __pure2 __INTRODUCED_IN(21);
94extern long labs(long) __pure2 __INTRODUCED_IN(21);
95extern long long llabs(long long) __pure2 __INTRODUCED_IN(21);
96
97extern char * realpath(const char *path, char *resolved);
98extern int system(const char *string);
99
100extern void * bsearch(const void *key, const void *base0,
101	size_t nmemb, size_t size,
102	int (*compar)(const void *, const void *));
103
104extern void qsort(void *, size_t, size_t, int (*)(const void *, const void *));
105
106uint32_t arc4random(void);
107uint32_t arc4random_uniform(uint32_t);
108void arc4random_buf(void*, size_t);
109
110#define RAND_MAX 0x7fffffff
111
112int rand(void) __INTRODUCED_IN(21);
113int rand_r(unsigned int*);
114void srand(unsigned int) __INTRODUCED_IN(21);
115
116double drand48(void);
117double erand48(unsigned short[3]);
118long jrand48(unsigned short[3]);
119void lcong48(unsigned short[7]);
120long lrand48(void);
121long mrand48(void);
122long nrand48(unsigned short[3]);
123unsigned short* seed48(unsigned short[3]);
124void srand48(long);
125
126char* initstate(unsigned int, char*, size_t);
127long random(void) __INTRODUCED_IN(21);
128char* setstate(char*);
129void srandom(unsigned int) __INTRODUCED_IN(21);
130
131int getpt(void);
132int grantpt(int) __INTRODUCED_IN(21);
133int posix_openpt(int);
134char* ptsname(int);
135int ptsname_r(int, char*, size_t);
136int unlockpt(int);
137
138typedef struct {
139    int  quot;
140    int  rem;
141} div_t;
142
143extern div_t   div(int, int) __pure2;
144
145typedef struct {
146    long int  quot;
147    long int  rem;
148} ldiv_t;
149
150extern ldiv_t   ldiv(long, long) __pure2;
151
152typedef struct {
153    long long int  quot;
154    long long int  rem;
155} lldiv_t;
156
157extern lldiv_t   lldiv(long long, long long) __pure2;
158
159/* BSD compatibility. */
160extern const char* getprogname(void);
161extern void setprogname(const char*);
162
163/* make STLPort happy */
164extern int      mblen(const char *, size_t);
165extern size_t   mbstowcs(wchar_t *, const char *, size_t);
166extern int      mbtowc(wchar_t *, const char *, size_t);
167
168/* Likewise, make libstdc++-v3 happy.  */
169extern int	wctomb(char *, wchar_t);
170extern size_t	wcstombs(char *, const wchar_t *, size_t);
171
172extern size_t __ctype_get_mb_cur_max(void);
173#define MB_CUR_MAX __ctype_get_mb_cur_max()
174
175#if __ANDROID_API__ < 21
176#include <android/legacy_stdlib_inlines.h>
177#endif
178
179#if defined(__BIONIC_FORTIFY)
180
181extern char* __realpath_real(const char*, char*) __RENAME(realpath);
182__errordecl(__realpath_size_error, "realpath output parameter must be NULL or a >= PATH_MAX bytes buffer");
183
184#if !defined(__clang__)
185__BIONIC_FORTIFY_INLINE
186char* realpath(const char* path, char* resolved) {
187    size_t bos = __bos(resolved);
188
189    /* PATH_MAX is unavailable without polluting the namespace, but it's always 4096 on Linux */
190    if (bos != __BIONIC_FORTIFY_UNKNOWN_SIZE && bos < 4096) {
191        __realpath_size_error();
192    }
193
194    return __realpath_real(path, resolved);
195}
196#endif
197
198#endif /* defined(__BIONIC_FORTIFY) */
199
200__END_DECLS
201
202#endif /* _STDLIB_H */
203