1/* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#ifndef _BIONIC_OPENBSD_COMPAT_H_included 18#define _BIONIC_OPENBSD_COMPAT_H_included 19 20#define _BSD_SOURCE 21#include <sys/cdefs.h> 22 23#include <stddef.h> // For size_t. 24 25// TODO: libandroid_support uses this file, so we need to wait for 26// <sys/random.h> to be in the NDK headers before we can lose this declaration. 27//#include <sys/random.h> // For getentropy. 28int getentropy(void*, size_t); 29 30#define __BEGIN_HIDDEN_DECLS _Pragma("GCC visibility push(hidden)") 31#define __END_HIDDEN_DECLS _Pragma("GCC visibility pop") 32 33extern const char* __progname; 34 35/* Redirect internal C library calls to the public function. */ 36#define _err err 37#define _errx errx 38#define _verr verr 39#define _verrx verrx 40#define _vwarn vwarn 41#define _vwarnx vwarnx 42#define _warn warn 43#define _warnx warnx 44 45/* Ignore all DEF_STRONG/DEF_WEAK in OpenBSD. */ 46#define DEF_STRONG(sym) 47#define DEF_WEAK(sym) 48#define __weak_alias __strong_alias 49 50/* Ignore all __warn_references in OpenBSD. */ 51#define __warn_references(sym,msg) 52 53/* OpenBSD's <ctype.h> uses these names, which conflicted with stlport. 54 * Additionally, we changed the numeric/digit type from N to D for libcxx. 55 */ 56#define _U _CTYPE_U 57#define _L _CTYPE_L 58#define _N _CTYPE_D 59#define _S _CTYPE_S 60#define _P _CTYPE_P 61#define _C _CTYPE_C 62#define _X _CTYPE_X 63#define _B _CTYPE_B 64 65/* OpenBSD has this, but we can't really implement it correctly on Linux. */ 66#define issetugid() 0 67 68#define explicit_bzero(p, s) memset(p, 0, s) 69 70/* OpenBSD has these in <sys/param.h>, but "ALIGN" isn't something we want to reserve. */ 71#define ALIGNBYTES (sizeof(uintptr_t) - 1) 72#define ALIGN(p) (((uintptr_t)(p) + ALIGNBYTES) &~ ALIGNBYTES) 73 74/* OpenBSD has this in paths.h. But this directory doesn't normally exist. 75 * Even when it does exist, only the 'shell' user has permissions. 76 */ 77#define _PATH_TMP "/data/local/tmp/" 78 79/* Use appropriate shell depending on process's executable. */ 80__LIBC_HIDDEN__ extern const char* __bionic_get_shell_path(); 81#define _PATH_BSHELL __bionic_get_shell_path() 82 83/* OpenBSD has this as API, but we just use it internally. */ 84__LIBC_HIDDEN__ void* reallocarray(void*, size_t, size_t); 85 86/* LP32 NDK ctype.h contained references to these. */ 87__LIBC32_LEGACY_PUBLIC__ extern const short* _tolower_tab_; 88__LIBC32_LEGACY_PUBLIC__ extern const short* _toupper_tab_; 89 90__LIBC_HIDDEN__ extern const char _C_ctype_[]; 91__LIBC_HIDDEN__ extern const short _C_toupper_[]; 92__LIBC_HIDDEN__ extern const short _C_tolower_[]; 93__LIBC_HIDDEN__ extern char* __findenv(const char*, int, int*); 94__LIBC_HIDDEN__ extern char* _mktemp(char*); 95 96#endif 97