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 extern int on_exit(void (*)(int, void *), void *); 54 55 extern char *getenv(const char *); 56 extern int putenv(const char *); 57 extern int setenv(const char *, const char *, int); 58 extern int unsetenv(const char *); 59 extern int clearenv(void); 60 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 extern double strtod(const char *nptr, char **endptr); 69 70 static __inline__ float strtof(const char *nptr, char **endptr) 71 { 72 return (float)strtod(nptr, endptr); 73 } 74 75 extern int atoi(const char *); 76 extern long atol(const char *); 77 extern long long atoll(const char *); 78 79 static __inline__ double atof(const char *nptr) 80 { 81 return (strtod(nptr, NULL)); 82 } 83 84 static __inline__ int abs(int __n) { 85 return (__n < 0) ? -__n : __n; 86 } 87 88 static __inline__ long labs(long __n) { 89 return (__n < 0L) ? -__n : __n; 90 } 91 92 static __inline__ long long llabs(long long __n) { 93 return (__n < 0LL) ? -__n : __n; 94 } 95 96 extern char * realpath(const char *path, char *resolved); 97 extern int system(const char * string); 98 99 extern void * bsearch(const void *key, const void *base0, 100 size_t nmemb, size_t size, 101 int (*compar)(const void *, const void *)); 102 103 extern void qsort(void *, size_t, size_t, int (*)(const void *, const void *)); 104 105 extern long jrand48(unsigned short *); 106 extern long mrand48(void); 107 extern long nrand48(unsigned short *); 108 extern long lrand48(void); 109 extern unsigned short *seed48(unsigned short*); 110 extern void srand48(long); 111 extern unsigned int arc4random(void); 112 extern void arc4random_stir(void); 113 extern void arc4random_addrandom(unsigned char *, int); 114 115 #define RAND_MAX 0x7fffffff 116 static __inline__ int rand(void) { 117 return (int)lrand48(); 118 } 119 static __inline__ void srand(unsigned int __s) { 120 srand48(__s); 121 } 122 static __inline__ long random(void) 123 { 124 return lrand48(); 125 } 126 static __inline__ void srandom(unsigned int __s) 127 { 128 srand48(__s); 129 } 130 131 /* Basic PTY functions. These only work if devpts is mounted! */ 132 133 extern int unlockpt(int); 134 extern char* ptsname(int); 135 extern char* ptsname_r(int, char*, size_t); 136 extern int getpt(void); 137 138 static __inline__ int grantpt(int __fd) 139 { 140 (void)__fd; 141 return 0; /* devpts does this all for us! */ 142 } 143 144 typedef struct { 145 int quot; 146 int rem; 147 } div_t; 148 149 extern div_t div(int, int); 150 151 typedef struct { 152 long int quot; 153 long int rem; 154 } ldiv_t; 155 156 extern ldiv_t ldiv(long, long); 157 158 typedef struct { 159 long long int quot; 160 long long int rem; 161 } lldiv_t; 162 163 extern lldiv_t lldiv(long long, long long); 164 165 /* make STLPort happy */ 166 extern int mblen(const char *, size_t); 167 extern size_t mbstowcs(wchar_t *, const char *, size_t); 168 extern int mbtowc(wchar_t *, const char *, size_t); 169 170 /* Likewise, make libstdc++-v3 happy. */ 171 extern int wctomb(char *, wchar_t); 172 extern 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
