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
50 extern __noreturn void exit(int);
51 extern __noreturn void abort(void);
52 extern int atexit(void (*)(void));
53
54 extern char *getenv(const char *);
55 extern int putenv(const 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 *);
62 extern int mkstemp (char *);
63
64 extern long strtol(const char *, char **, int);
65 extern long long strtoll(const char *, char **, int);
66 extern unsigned long strtoul(const char *, char **, int);
67 extern unsigned long long strtoull(const char *, char **, int);
68
69 extern int posix_memalign(void **memptr, size_t alignment, size_t size);
70
71 extern double strtod(const char *nptr, char **endptr);
72
strtof(const char * nptr,char ** endptr)73 static __inline__ float strtof(const char *nptr, char **endptr)
74 {
75 return (float)strtod(nptr, endptr);
76 }
77
78 extern int atoi(const char *);
79 extern long atol(const char *);
80 extern long long atoll(const char *);
81
atof(const char * nptr)82 static __inline__ double atof(const char *nptr)
83 {
84 return (strtod(nptr, NULL));
85 }
86
abs(int __n)87 static __inline__ int abs(int __n) {
88 return (__n < 0) ? -__n : __n;
89 }
90
labs(long __n)91 static __inline__ long labs(long __n) {
92 return (__n < 0L) ? -__n : __n;
93 }
94
llabs(long long __n)95 static __inline__ long long llabs(long long __n) {
96 return (__n < 0LL) ? -__n : __n;
97 }
98
99 extern char * realpath(const char *path, char *resolved);
100 extern int system(const char * string);
101
102 extern void * bsearch(const void *key, const void *base0,
103 size_t nmemb, size_t size,
104 int (*compar)(const void *, const void *));
105
106 extern void qsort(void *, size_t, size_t, int (*)(const void *, const void *));
107
108 extern long jrand48(unsigned short *);
109 extern long mrand48(void);
110 extern long nrand48(unsigned short *);
111 extern long lrand48(void);
112 extern unsigned short *seed48(unsigned short*);
113 extern double erand48(unsigned short xsubi[3]);
114 extern double drand48(void);
115 extern void srand48(long);
116 extern unsigned int arc4random(void);
117 extern void arc4random_stir(void);
118 extern void arc4random_addrandom(unsigned char *, int);
119
120 #define RAND_MAX 0x7fffffff
rand(void)121 static __inline__ int rand(void) {
122 return (int)lrand48();
123 }
srand(unsigned int __s)124 static __inline__ void srand(unsigned int __s) {
125 srand48(__s);
126 }
random(void)127 static __inline__ long random(void)
128 {
129 return lrand48();
130 }
srandom(unsigned int __s)131 static __inline__ void srandom(unsigned int __s)
132 {
133 srand48(__s);
134 }
135
136 /* Basic PTY functions. These only work if devpts is mounted! */
137
138 extern int unlockpt(int);
139 extern char* ptsname(int);
140 extern int ptsname_r(int, char*, size_t);
141 extern int getpt(void);
142
grantpt(int __fd __attribute ((unused)))143 static __inline__ int grantpt(int __fd __attribute((unused)))
144 {
145 (void)__fd;
146 return 0; /* devpts does this all for us! */
147 }
148
149 typedef struct {
150 int quot;
151 int rem;
152 } div_t;
153
154 extern div_t div(int, int);
155
156 typedef struct {
157 long int quot;
158 long int rem;
159 } ldiv_t;
160
161 extern ldiv_t ldiv(long, long);
162
163 typedef struct {
164 long long int quot;
165 long long int rem;
166 } lldiv_t;
167
168 extern lldiv_t lldiv(long long, long long);
169
170 #if 1 /* MISSING FROM BIONIC - ENABLED FOR STLPort and libstdc++-v3 */
171 /* make STLPort happy */
172 extern int mblen(const char *, size_t);
173 extern size_t mbstowcs(wchar_t *, const char *, size_t);
174 extern int mbtowc(wchar_t *, const char *, size_t);
175
176 /* Likewise, make libstdc++-v3 happy. */
177 extern int wctomb(char *, wchar_t);
178 extern size_t wcstombs(char *, const wchar_t *, size_t);
179 #endif /* MISSING */
180
181 #define MB_CUR_MAX 1
182
183 #if 0 /* MISSING FROM BIONIC */
184 extern int on_exit(void (*)(int, void *), void *);
185 #endif /* MISSING */
186
187 __END_DECLS
188
189 #endif /* _STDLIB_H_ */
190