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 22 #include <sys/cdefs.h> 23 #include <stddef.h> // For size_t. 24 25 #define __BEGIN_HIDDEN_DECLS _Pragma("GCC visibility push(hidden)") 26 #define __END_HIDDEN_DECLS _Pragma("GCC visibility pop") 27 28 extern const char* __progname; 29 30 /* Redirect internal C library calls to the public function. */ 31 #define _err err 32 #define _errx errx 33 #define _verr verr 34 #define _verrx verrx 35 #define _vwarn vwarn 36 #define _vwarnx vwarnx 37 #define _warn warn 38 #define _warnx warnx 39 40 /* Ignore all DEF_STRONG/DEF_WEAK in OpenBSD. */ 41 #define DEF_STRONG(sym) 42 #define DEF_WEAK(sym) 43 44 /* Ignore all __warn_references in OpenBSD. */ 45 #define __warn_references(sym,msg) 46 47 /* OpenBSD's <ctype.h> uses these names, which conflicted with stlport. 48 * Additionally, we changed the numeric/digit type from N to D for libcxx. 49 */ 50 #define _U _CTYPE_U 51 #define _L _CTYPE_L 52 #define _N _CTYPE_D 53 #define _S _CTYPE_S 54 #define _P _CTYPE_P 55 #define _C _CTYPE_C 56 #define _X _CTYPE_X 57 #define _B _CTYPE_B 58 59 /* OpenBSD has this, but we can't really implement it correctly on Linux. */ 60 #define issetugid() 0 61 62 #define explicit_bzero(p, s) memset(p, 0, s) 63 64 /* OpenBSD has these in <sys/param.h>, but "ALIGN" isn't something we want to reserve. */ 65 #define ALIGNBYTES (sizeof(uintptr_t) - 1) 66 #define ALIGN(p) (((uintptr_t)(p) + ALIGNBYTES) &~ ALIGNBYTES) 67 68 /* OpenBSD has this in paths.h. But this directory doesn't normally exist. 69 * Even when it does exist, only the 'shell' user has permissions. 70 */ 71 #define _PATH_TMP "/data/local/tmp/" 72 73 /* Use appropriate shell depending on process's executable. */ 74 __LIBC_HIDDEN__ extern const char* __bionic_get_shell_path(); 75 #define _PATH_BSHELL __bionic_get_shell_path() 76 77 /* We have OpenBSD's getentropy_linux.c, but we don't mention getentropy in any header. */ 78 __LIBC_HIDDEN__ extern int getentropy(void*, size_t); 79 80 /* OpenBSD has this as API, but we just use it internally. */ 81 __LIBC_HIDDEN__ void* reallocarray(void*, size_t, size_t); 82 83 /* LP32 NDK ctype.h contained references to these. */ 84 __LIBC32_LEGACY_PUBLIC__ extern const short* _tolower_tab_; 85 __LIBC32_LEGACY_PUBLIC__ extern const short* _toupper_tab_; 86 87 __LIBC_HIDDEN__ extern const char _C_ctype_[]; 88 __LIBC_HIDDEN__ extern const short _C_toupper_[]; 89 __LIBC_HIDDEN__ extern const short _C_tolower_[]; 90 __LIBC_HIDDEN__ extern char* __findenv(const char*, int, int*); 91 __LIBC_HIDDEN__ extern char* _mktemp(char*); 92 93 #endif 94
