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
44 extern __noreturn void abort(void);
45 extern __noreturn void exit(int);
46 extern __noreturn void _Exit(int);
47 extern int atexit(void (*)(void));
48
49 #if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L
50 int at_quick_exit(void (*)(void));
51 void quick_exit(int) __noreturn;
52 #endif
53
54 extern char* getenv(const char*);
55 extern int putenv(char*);
56 extern int setenv(const char*, const char*, int);
57 extern int unsetenv(const char*);
58 extern int clearenv(void);
59
60 extern char* mkdtemp(char*);
61 extern char* mktemp(char*) __attribute__((deprecated("mktemp is unsafe, use mkstemp or tmpfile instead")));
62
63 extern int mkostemp64(char*, int);
64 extern int mkostemp(char*, int);
65 extern int mkostemps64(char*, int, int);
66 extern int mkostemps(char*, int, int);
67 extern int mkstemp64(char*);
68 extern int mkstemp(char*);
69 extern int mkstemps64(char*, int);
70 extern int mkstemps(char*, int);
71
72 extern long strtol(const char *, char **, int);
73 extern long long strtoll(const char *, char **, int);
74 extern unsigned long strtoul(const char *, char **, int);
75 extern unsigned long long strtoull(const char *, char **, int);
76
77 extern int posix_memalign(void **memptr, size_t alignment, size_t size);
78
79 extern double atof(const char*) __INTRODUCED_IN(21);
80
81 extern double strtod(const char*, char**) __LIBC_ABI_PUBLIC__;
82 extern float strtof(const char*, char**) __LIBC_ABI_PUBLIC__ __INTRODUCED_IN(21);
83 extern long double strtold(const char*, char**) __LIBC_ABI_PUBLIC__;
84
85 extern long double strtold_l(const char *, char **, locale_t) __LIBC_ABI_PUBLIC__;
86 extern long long strtoll_l(const char *, char **, int, locale_t) __LIBC_ABI_PUBLIC__;
87 extern unsigned long long strtoull_l(const char *, char **, int, locale_t) __LIBC_ABI_PUBLIC__;
88
89 extern int atoi(const char*) __purefunc;
90 extern long atol(const char*) __purefunc;
91 extern long long atoll(const char*) __purefunc;
92
93 extern int abs(int) __pure2 __INTRODUCED_IN(21);
94 extern long labs(long) __pure2 __INTRODUCED_IN(21);
95 extern long long llabs(long long) __pure2 __INTRODUCED_IN(21);
96
97 extern char * realpath(const char *path, char *resolved);
98 extern int system(const char *string);
99
100 extern void * bsearch(const void *key, const void *base0,
101 size_t nmemb, size_t size,
102 int (*compar)(const void *, const void *));
103
104 extern void qsort(void *, size_t, size_t, int (*)(const void *, const void *));
105
106 uint32_t arc4random(void);
107 uint32_t arc4random_uniform(uint32_t);
108 void arc4random_buf(void*, size_t);
109
110 #define RAND_MAX 0x7fffffff
111
112 int rand(void) __INTRODUCED_IN(21);
113 int rand_r(unsigned int*);
114 void srand(unsigned int) __INTRODUCED_IN(21);
115
116 double drand48(void);
117 double erand48(unsigned short[3]);
118 long jrand48(unsigned short[3]);
119 void lcong48(unsigned short[7]);
120 long lrand48(void);
121 long mrand48(void);
122 long nrand48(unsigned short[3]);
123 unsigned short* seed48(unsigned short[3]);
124 void srand48(long);
125
126 char* initstate(unsigned int, char*, size_t);
127 long random(void) __INTRODUCED_IN(21);
128 char* setstate(char*);
129 void srandom(unsigned int) __INTRODUCED_IN(21);
130
131 int getpt(void);
132 int grantpt(int) __INTRODUCED_IN(21);
133 int posix_openpt(int);
134 char* ptsname(int);
135 int ptsname_r(int, char*, size_t);
136 int unlockpt(int);
137
138 typedef struct {
139 int quot;
140 int rem;
141 } div_t;
142
143 extern div_t div(int, int) __pure2;
144
145 typedef struct {
146 long int quot;
147 long int rem;
148 } ldiv_t;
149
150 extern ldiv_t ldiv(long, long) __pure2;
151
152 typedef struct {
153 long long int quot;
154 long long int rem;
155 } lldiv_t;
156
157 extern lldiv_t lldiv(long long, long long) __pure2;
158
159 /* BSD compatibility. */
160 extern const char* getprogname(void);
161 extern void setprogname(const char*);
162
163 /* make STLPort happy */
164 extern int mblen(const char *, size_t);
165 extern size_t mbstowcs(wchar_t *, const char *, size_t);
166 extern int mbtowc(wchar_t *, const char *, size_t);
167
168 /* Likewise, make libstdc++-v3 happy. */
169 extern int wctomb(char *, wchar_t);
170 extern size_t wcstombs(char *, const wchar_t *, size_t);
171
172 extern 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
181 extern 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
realpath(const char * path,char * resolved)186 char* 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