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 *mktemp (char *); 61 extern int mkstemp (char *); 62 63 extern long strtol(const char *, char **, int); 64 extern long long strtoll(const char *, char **, int); 65 extern unsigned long strtoul(const char *, char **, int); 66 extern unsigned long long strtoull(const char *, char **, int); 67 extern double strtod(const char *nptr, char **endptr); 68 69 static __inline__ float strtof(const char *nptr, char **endptr) 70 { 71 return (float)strtod(nptr, endptr); 72 } 73 74 extern int atoi(const char *); 75 extern long atol(const char *); 76 extern long long atoll(const char *); 77 78 static __inline__ double atof(const char *nptr) 79 { 80 return (strtod(nptr, NULL)); 81 } 82 83 static __inline__ int abs(int __n) { 84 return (__n < 0) ? -__n : __n; 85 } 86 87 static __inline__ long labs(long __n) { 88 return (__n < 0L) ? -__n : __n; 89 } 90 91 static __inline__ long long llabs(long long __n) { 92 return (__n < 0LL) ? -__n : __n; 93 } 94 95 extern char * realpath(const char *path, char *resolved); 96 extern int system(const char * string); 97 98 extern void * bsearch(const void *key, const void *base0, 99 size_t nmemb, size_t size, 100 int (*compar)(const void *, const void *)); 101 102 extern void qsort(void *, size_t, size_t, int (*)(const void *, const void *)); 103 104 extern long jrand48(unsigned short *); 105 extern long mrand48(void); 106 extern long nrand48(unsigned short *); 107 extern long lrand48(void); 108 extern unsigned short *seed48(unsigned short*); 109 extern double erand48(unsigned short xsubi[3]); 110 extern double drand48(void); 111 extern void srand48(long); 112 extern unsigned int arc4random(void); 113 extern void arc4random_stir(void); 114 extern void arc4random_addrandom(unsigned char *, int); 115 116 #define RAND_MAX 0x7fffffff 117 static __inline__ int rand(void) { 118 return (int)lrand48(); 119 } 120 static __inline__ void srand(unsigned int __s) { 121 srand48(__s); 122 } 123 static __inline__ long random(void) 124 { 125 return lrand48(); 126 } 127 static __inline__ void srandom(unsigned int __s) 128 { 129 srand48(__s); 130 } 131 132 /* Basic PTY functions. These only work if devpts is mounted! */ 133 134 extern int unlockpt(int); 135 extern char* ptsname(int); 136 extern int ptsname_r(int, char*, size_t); 137 extern int getpt(void); 138 139 static __inline__ int grantpt(int __fd __attribute((unused))) 140 { 141 (void)__fd; 142 return 0; /* devpts does this all for us! */ 143 } 144 145 typedef struct { 146 int quot; 147 int rem; 148 } div_t; 149 150 extern div_t div(int, int); 151 152 typedef struct { 153 long int quot; 154 long int rem; 155 } ldiv_t; 156 157 extern ldiv_t ldiv(long, long); 158 159 typedef struct { 160 long long int quot; 161 long long int rem; 162 } lldiv_t; 163 164 extern lldiv_t lldiv(long long, long long); 165 166 #if 1 /* MISSING FROM BIONIC - ENABLED FOR STLPort and libstdc++-v3 */ 167 /* make STLPort happy */ 168 extern int mblen(const char *, size_t); 169 extern size_t mbstowcs(wchar_t *, const char *, size_t); 170 extern int mbtowc(wchar_t *, const char *, size_t); 171 172 /* Likewise, make libstdc++-v3 happy. */ 173 extern int wctomb(char *, wchar_t); 174 extern size_t wcstombs(char *, const wchar_t *, size_t); 175 #endif /* MISSING */ 176 177 #define MB_CUR_MAX 1 178 179 #if 0 /* MISSING FROM BIONIC */ 180 extern int on_exit(void (*)(int, void *), void *); 181 #endif /* MISSING */ 182 183 __END_DECLS 184 185 #endif /* _STDLIB_H_ */ 186
