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 #include <stddef.h>
34 #include <string.h>
35 #include <alloca.h>
36 #include <strings.h>
37 #include <memory.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*) __warnattr("mktemp possibly used unsafely; consider using mkstemp");
62 extern int mkstemp(char*);
63 extern int mkstemp64(char*);
64
65 extern long strtol(const char *, char **, int);
66 extern long long strtoll(const char *, char **, int);
67 extern unsigned long strtoul(const char *, char **, int);
68 extern unsigned long long strtoull(const char *, char **, int);
69
70 extern int posix_memalign(void **memptr, size_t alignment, size_t size);
71
72 extern double atof(const char*);
73
74 extern double strtod(const char*, char**) __LIBC_ABI_PUBLIC__;
75 extern float strtof(const char*, char**) __LIBC_ABI_PUBLIC__;
76 extern long double strtold(const char*, char**) __LIBC_ABI_PUBLIC__;
77
78 extern int atoi(const char*) __purefunc;
79 extern long atol(const char*) __purefunc;
80 extern long long atoll(const char*) __purefunc;
81
82 extern int abs(int) __pure2;
83 extern long labs(long) __pure2;
84 extern long long llabs(long long) __pure2;
85
86 extern char * realpath(const char *path, char *resolved);
87 extern int system(const char * string);
88
89 extern void * bsearch(const void *key, const void *base0,
90 size_t nmemb, size_t size,
91 int (*compar)(const void *, const void *));
92
93 extern void qsort(void *, size_t, size_t, int (*)(const void *, const void *));
94
95 extern long jrand48(unsigned short *);
96 extern long mrand48(void);
97 extern long nrand48(unsigned short *);
98 extern long lrand48(void);
99 extern unsigned short *seed48(unsigned short*);
100 extern double erand48(unsigned short xsubi[3]);
101 extern double drand48(void);
102 extern void srand48(long);
103
104 unsigned int arc4random(void);
105 unsigned int arc4random_uniform(unsigned int);
106 void arc4random_buf(void*, size_t);
107
108 #define RAND_MAX 0x7fffffff
109
110 /* Work around x86/x86-64 libvpx build breakage caused by postproc_x86.c. */
111 #if (defined(__i386__) || defined(__x86_64__)) && defined(rand)
112 #undef rand
113 #define __rand lrand48
114 #endif
115
116 int rand(void);
117 int rand_r(unsigned int*);
118 void srand(unsigned int);
119
120 char* initstate(unsigned int, char*, size_t);
121 long random(void);
122 char* setstate(char*);
123 void srandom(unsigned int);
124
125 /* Basic PTY functions. These only work if devpts is mounted! */
126
127 extern int unlockpt(int);
128 extern char* ptsname(int);
129 extern int ptsname_r(int, char*, size_t);
130 extern int getpt(void);
131
grantpt(int __fd __attribute ((unused)))132 static __inline__ int grantpt(int __fd __attribute((unused)))
133 {
134 (void)__fd;
135 return 0; /* devpts does this all for us! */
136 }
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 #define MB_CUR_MAX 4U
173
174 #if 0 /* MISSING FROM BIONIC */
175 extern int on_exit(void (*)(int, void *), void *);
176 #endif /* MISSING */
177
178 __END_DECLS
179
180 #endif /* _STDLIB_H_ */
181