archive_platform.h revision 313571
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/10/contrib/libarchive/libarchive/archive_platform.h 313571 2017-02-11 00:56:18Z 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/* It should be possible to get rid of this by extending the feature-test 56 * macros to cover Windows API functions, probably along with non-trivial 57 * refactoring of code to find structures that sit more cleanly on top of 58 * either Windows or Posix APIs. */ 59#if (defined(__WIN32__) || defined(_WIN32) || defined(__WIN32)) && !defined(__CYGWIN__) 60#include "archive_windows.h" 61#endif 62 63/* 64 * The config files define a lot of feature macros. The following 65 * uses those macros to select/define replacements and include key 66 * headers as required. 67 */ 68 69/* Get a real definition for __FBSDID or __RCSID if we can */ 70#if HAVE_SYS_CDEFS_H 71#include <sys/cdefs.h> 72#endif 73 74/* If not, define them so as to avoid dangling semicolons. */ 75#ifndef __FBSDID 76#define __FBSDID(a) struct _undefined_hack 77#endif 78#ifndef __RCSID 79#define __RCSID(a) struct _undefined_hack 80#endif 81 82/* Try to get standard C99-style integer type definitions. */ 83#if HAVE_INTTYPES_H 84#include <inttypes.h> 85#endif 86#if HAVE_STDINT_H 87#include <stdint.h> 88#endif 89 90/* Borland warns about its own constants! */ 91#if defined(__BORLANDC__) 92# if HAVE_DECL_UINT64_MAX 93# undef UINT64_MAX 94# undef HAVE_DECL_UINT64_MAX 95# endif 96# if HAVE_DECL_UINT64_MIN 97# undef UINT64_MIN 98# undef HAVE_DECL_UINT64_MIN 99# endif 100# if HAVE_DECL_INT64_MAX 101# undef INT64_MAX 102# undef HAVE_DECL_INT64_MAX 103# endif 104# if HAVE_DECL_INT64_MIN 105# undef INT64_MIN 106# undef HAVE_DECL_INT64_MIN 107# endif 108#endif 109 110/* Some platforms lack the standard *_MAX definitions. */ 111#if !HAVE_DECL_SIZE_MAX 112#define SIZE_MAX (~(size_t)0) 113#endif 114#if !HAVE_DECL_SSIZE_MAX 115#define SSIZE_MAX ((ssize_t)(SIZE_MAX >> 1)) 116#endif 117#if !HAVE_DECL_UINT32_MAX 118#define UINT32_MAX (~(uint32_t)0) 119#endif 120#if !HAVE_DECL_INT32_MAX 121#define INT32_MAX ((int32_t)(UINT32_MAX >> 1)) 122#endif 123#if !HAVE_DECL_INT32_MIN 124#define INT32_MIN ((int32_t)(~INT32_MAX)) 125#endif 126#if !HAVE_DECL_UINT64_MAX 127#define UINT64_MAX (~(uint64_t)0) 128#endif 129#if !HAVE_DECL_INT64_MAX 130#define INT64_MAX ((int64_t)(UINT64_MAX >> 1)) 131#endif 132#if !HAVE_DECL_INT64_MIN 133#define INT64_MIN ((int64_t)(~INT64_MAX)) 134#endif 135#if !HAVE_DECL_UINTMAX_MAX 136#define UINTMAX_MAX (~(uintmax_t)0) 137#endif 138#if !HAVE_DECL_INTMAX_MAX 139#define INTMAX_MAX ((intmax_t)(UINTMAX_MAX >> 1)) 140#endif 141#if !HAVE_DECL_INTMAX_MIN 142#define INTMAX_MIN ((intmax_t)(~INTMAX_MAX)) 143#endif 144 145/* 146 * If this platform has <sys/acl.h>, acl_create(), acl_init(), 147 * acl_set_file(), and ACL_USER, we assume it has the rest of the 148 * POSIX.1e draft functions used in archive_read_extract.c. 149 */ 150#if HAVE_SYS_ACL_H && HAVE_ACL_CREATE_ENTRY && HAVE_ACL_INIT && HAVE_ACL_SET_FILE 151#if HAVE_ACL_USER 152#define HAVE_POSIX_ACL 1 153#elif HAVE_ACL_TYPE_EXTENDED 154#define HAVE_DARWIN_ACL 1 155#endif 156#endif 157 158/* 159 * If this platform has <sys/acl.h>, acl_get(), facl_get(), acl_set(), 160 * facl_set() and types aclent_t and ace_t it uses Solaris-style ACL functions 161 */ 162#if HAVE_SYS_ACL_H && HAVE_ACL_GET && HAVE_FACL_GET && HAVE_ACL_SET && HAVE_FACL_SET && HAVE_ACLENT_T && HAVE_ACE_T 163#define HAVE_SUN_ACL 1 164#endif 165 166/* Define if platform supports NFSv4 ACLs */ 167#if (HAVE_POSIX_ACL && HAVE_ACL_TYPE_NFS4) || HAVE_SUN_ACL || HAVE_DARWIN_ACL 168#define HAVE_NFS4_ACL 1 169#endif 170 171/* 172 * If we can't restore metadata using a file descriptor, then 173 * for compatibility's sake, close files before trying to restore metadata. 174 */ 175#if defined(HAVE_FCHMOD) || defined(HAVE_FUTIMES) || defined(HAVE_ACL_SET_FD) || defined(HAVE_ACL_SET_FD_NP) || defined(HAVE_FCHOWN) 176#define CAN_RESTORE_METADATA_FD 177#endif 178 179/* 180 * glibc 2.24 deprecates readdir_r 181 */ 182#if defined(HAVE_READDIR_R) && (!defined(__GLIBC__) || !defined(__GLIBC_MINOR__) || __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 24)) 183#define USE_READDIR_R 1 184#else 185#undef USE_READDIR_R 186#endif 187 188/* Set up defaults for internal error codes. */ 189#ifndef ARCHIVE_ERRNO_FILE_FORMAT 190#if HAVE_EFTYPE 191#define ARCHIVE_ERRNO_FILE_FORMAT EFTYPE 192#else 193#if HAVE_EILSEQ 194#define ARCHIVE_ERRNO_FILE_FORMAT EILSEQ 195#else 196#define ARCHIVE_ERRNO_FILE_FORMAT EINVAL 197#endif 198#endif 199#endif 200 201#ifndef ARCHIVE_ERRNO_PROGRAMMER 202#define ARCHIVE_ERRNO_PROGRAMMER EINVAL 203#endif 204 205#ifndef ARCHIVE_ERRNO_MISC 206#define ARCHIVE_ERRNO_MISC (-1) 207#endif 208 209#endif /* !ARCHIVE_PLATFORM_H_INCLUDED */ 210