archive_platform.h revision 324417
1/*- 2 * Copyright (c) 2003-2007 Tim Kientzle 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 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 * $FreeBSD: stable/11/contrib/libarchive/libarchive/archive_platform.h 324417 2017-10-08 20:54:53Z mm $ 26 */ 27 28/* !!ONLY FOR USE INTERNALLY TO LIBARCHIVE!! */ 29 30/* 31 * This header is the first thing included in any of the libarchive 32 * source files. As far as possible, platform-specific issues should 33 * be dealt with here and not within individual source files. I'm 34 * actively trying to minimize #if blocks within the main source, 35 * since they obfuscate the code. 36 */ 37 38#ifndef ARCHIVE_PLATFORM_H_INCLUDED 39#define ARCHIVE_PLATFORM_H_INCLUDED 40 41/* archive.h and archive_entry.h require this. */ 42#define __LIBARCHIVE_BUILD 1 43 44#if defined(PLATFORM_CONFIG_H) 45/* Use hand-built config.h in environments that need it. */ 46#include PLATFORM_CONFIG_H 47#elif defined(HAVE_CONFIG_H) 48/* Most POSIX platforms use the 'configure' script to build config.h */ 49#include "config.h" 50#else 51/* Warn if the library hasn't been (automatically or manually) configured. */ 52#error Oops: No config.h and no pre-built configuration in archive_platform.h. 53#endif 54 55/* On macOS check for some symbols based on the deployment target version. */ 56#if defined(__APPLE__) 57# undef HAVE_FUTIMENS 58# undef HAVE_UTIMENSAT 59# include <AvailabilityMacros.h> 60# if MAC_OS_X_VERSION_MIN_REQUIRED >= 101300 61# define HAVE_FUTIMENS 1 62# define HAVE_UTIMENSAT 1 63# endif 64#endif 65 66/* It should be possible to get rid of this by extending the feature-test 67 * macros to cover Windows API functions, probably along with non-trivial 68 * refactoring of code to find structures that sit more cleanly on top of 69 * either Windows or Posix APIs. */ 70#if (defined(__WIN32__) || defined(_WIN32) || defined(__WIN32)) && !defined(__CYGWIN__) 71#include "archive_windows.h" 72#endif 73 74/* 75 * The config files define a lot of feature macros. The following 76 * uses those macros to select/define replacements and include key 77 * headers as required. 78 */ 79 80/* Get a real definition for __FBSDID or __RCSID if we can */ 81#if HAVE_SYS_CDEFS_H 82#include <sys/cdefs.h> 83#endif 84 85/* If not, define them so as to avoid dangling semicolons. */ 86#ifndef __FBSDID 87#define __FBSDID(a) struct _undefined_hack 88#endif 89#ifndef __RCSID 90#define __RCSID(a) struct _undefined_hack 91#endif 92 93/* Try to get standard C99-style integer type definitions. */ 94#if HAVE_INTTYPES_H 95#include <inttypes.h> 96#endif 97#if HAVE_STDINT_H 98#include <stdint.h> 99#endif 100 101/* Borland warns about its own constants! */ 102#if defined(__BORLANDC__) 103# if HAVE_DECL_UINT64_MAX 104# undef UINT64_MAX 105# undef HAVE_DECL_UINT64_MAX 106# endif 107# if HAVE_DECL_UINT64_MIN 108# undef UINT64_MIN 109# undef HAVE_DECL_UINT64_MIN 110# endif 111# if HAVE_DECL_INT64_MAX 112# undef INT64_MAX 113# undef HAVE_DECL_INT64_MAX 114# endif 115# if HAVE_DECL_INT64_MIN 116# undef INT64_MIN 117# undef HAVE_DECL_INT64_MIN 118# endif 119#endif 120 121/* Some platforms lack the standard *_MAX definitions. */ 122#if !HAVE_DECL_SIZE_MAX 123#define SIZE_MAX (~(size_t)0) 124#endif 125#if !HAVE_DECL_SSIZE_MAX 126#define SSIZE_MAX ((ssize_t)(SIZE_MAX >> 1)) 127#endif 128#if !HAVE_DECL_UINT32_MAX 129#define UINT32_MAX (~(uint32_t)0) 130#endif 131#if !HAVE_DECL_INT32_MAX 132#define INT32_MAX ((int32_t)(UINT32_MAX >> 1)) 133#endif 134#if !HAVE_DECL_INT32_MIN 135#define INT32_MIN ((int32_t)(~INT32_MAX)) 136#endif 137#if !HAVE_DECL_UINT64_MAX 138#define UINT64_MAX (~(uint64_t)0) 139#endif 140#if !HAVE_DECL_INT64_MAX 141#define INT64_MAX ((int64_t)(UINT64_MAX >> 1)) 142#endif 143#if !HAVE_DECL_INT64_MIN 144#define INT64_MIN ((int64_t)(~INT64_MAX)) 145#endif 146#if !HAVE_DECL_UINTMAX_MAX 147#define UINTMAX_MAX (~(uintmax_t)0) 148#endif 149#if !HAVE_DECL_INTMAX_MAX 150#define INTMAX_MAX ((intmax_t)(UINTMAX_MAX >> 1)) 151#endif 152#if !HAVE_DECL_INTMAX_MIN 153#define INTMAX_MIN ((intmax_t)(~INTMAX_MAX)) 154#endif 155 156/* 157 * If we can't restore metadata using a file descriptor, then 158 * for compatibility's sake, close files before trying to restore metadata. 159 */ 160#if defined(HAVE_FCHMOD) || defined(HAVE_FUTIMES) || defined(HAVE_ACL_SET_FD) || defined(HAVE_ACL_SET_FD_NP) || defined(HAVE_FCHOWN) 161#define CAN_RESTORE_METADATA_FD 162#endif 163 164/* 165 * glibc 2.24 deprecates readdir_r 166 */ 167#if defined(HAVE_READDIR_R) && (!defined(__GLIBC__) || !defined(__GLIBC_MINOR__) || __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 24)) 168#define USE_READDIR_R 1 169#else 170#undef USE_READDIR_R 171#endif 172 173/* Set up defaults for internal error codes. */ 174#ifndef ARCHIVE_ERRNO_FILE_FORMAT 175#if HAVE_EFTYPE 176#define ARCHIVE_ERRNO_FILE_FORMAT EFTYPE 177#else 178#if HAVE_EILSEQ 179#define ARCHIVE_ERRNO_FILE_FORMAT EILSEQ 180#else 181#define ARCHIVE_ERRNO_FILE_FORMAT EINVAL 182#endif 183#endif 184#endif 185 186#ifndef ARCHIVE_ERRNO_PROGRAMMER 187#define ARCHIVE_ERRNO_PROGRAMMER EINVAL 188#endif 189 190#ifndef ARCHIVE_ERRNO_MISC 191#define ARCHIVE_ERRNO_MISC (-1) 192#endif 193 194#endif /* !ARCHIVE_PLATFORM_H_INCLUDED */ 195