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 exit(int); 45 extern __noreturn void abort(void); 46 extern int atexit(void (*)(void)); 47 48 extern char *getenv(const char *); 49 extern int putenv(const char *); 50 extern int setenv(const char *, const char *, int); 51 extern int unsetenv(const char *); 52 extern int clearenv(void); 53 54 extern char *mkdtemp(char *); 55 extern char *mktemp(char *); 56 extern int mkstemp(char *); 57 58 extern long strtol(const char *, char **, int); 59 extern long long strtoll(const char *, char **, int); 60 extern unsigned long strtoul(const char *, char **, int); 61 extern unsigned long long strtoull(const char *, char **, int); 62 extern double strtod(const char *nptr, char **endptr); 63 64 extern int posix_memalign(void **memptr, size_t alignment, size_t size); 65 66 static __inline__ float strtof(const char *nptr, char **endptr) 67 { 68 return (float)strtod(nptr, endptr); 69 } 70 71 extern int atoi(const char *) __purefunc; 72 extern long atol(const char *) __purefunc; 73 extern long long atoll(const char *) __purefunc; 74 75 static __inline__ double atof(const char *nptr) 76 { 77 return (strtod(nptr, NULL)); 78 } 79 80 static __inline__ int abs(int __n) { 81 return (__n < 0) ? -__n : __n; 82 } 83 84 static __inline__ long labs(long __n) { 85 return (__n < 0L) ? -__n : __n; 86 } 87 88 static __inline__ long long llabs(long long __n) { 89 return (__n < 0LL) ? -__n : __n; 90 } 91 92 extern char * realpath(const char *path, char *resolved); 93 extern int system(const char * string); 94 95 extern void * bsearch(const void *key, const void *base0, 96 size_t nmemb, size_t size, 97 int (*compar)(const void *, const void *)); 98 99 extern void qsort(void *, size_t, size_t, int (*)(const void *, const void *)); 100 101 extern long jrand48(unsigned short *); 102 extern long mrand48(void); 103 extern long nrand48(unsigned short *); 104 extern long lrand48(void); 105 extern unsigned short *seed48(unsigned short*); 106 extern double erand48(unsigned short xsubi[3]); 107 extern double drand48(void); 108 extern void srand48(long); 109 extern unsigned int arc4random(void); 110 extern void arc4random_stir(void); 111 extern void arc4random_addrandom(unsigned char *, int); 112 113 #define RAND_MAX 0x7fffffff 114 static __inline__ int rand(void) { 115 return (int)lrand48(); 116 } 117 static __inline__ void srand(unsigned int __s) { 118 srand48(__s); 119 } 120 static __inline__ long random(void) 121 { 122 return lrand48(); 123 } 124 static __inline__ void srandom(unsigned int __s) 125 { 126 srand48(__s); 127 } 128 129 /* Basic PTY functions. These only work if devpts is mounted! */ 130 131 extern int unlockpt(int); 132 extern char* ptsname(int); 133 extern int ptsname_r(int, char*, size_t); 134 extern int getpt(void); 135 136 static __inline__ int grantpt(int __fd __attribute((unused))) 137 { 138 (void)__fd; 139 return 0; /* devpts does this all for us! */ 140 } 141 142 typedef struct { 143 int quot; 144 int rem; 145 } div_t; 146 147 extern div_t div(int, int); 148 149 typedef struct { 150 long int quot; 151 long int rem; 152 } ldiv_t; 153 154 extern ldiv_t ldiv(long, long); 155 156 typedef struct { 157 long long int quot; 158 long long int rem; 159 } lldiv_t; 160 161 extern lldiv_t lldiv(long long, long long); 162 163 #if 1 /* MISSING FROM BIONIC - ENABLED FOR STLPort and libstdc++-v3 */ 164 /* make STLPort happy */ 165 extern int mblen(const char *, size_t); 166 extern size_t mbstowcs(wchar_t *, const char *, size_t); 167 extern int mbtowc(wchar_t *, const char *, size_t); 168 169 /* Likewise, make libstdc++-v3 happy. */ 170 extern int wctomb(char *, wchar_t); 171 extern size_t wcstombs(char *, const wchar_t *, size_t); 172 #endif /* MISSING */ 173 174 #define MB_CUR_MAX 1 175 176 #if 0 /* MISSING FROM BIONIC */ 177 extern int on_exit(void (*)(int, void *), void *); 178 #endif /* MISSING */ 179 180 __END_DECLS 181 182 #endif /* _STDLIB_H_ */ 183
