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/*-
* Copyright (c) 2003-2007 Tim Kientzle
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD: head/lib/libarchive/archive_platform.h 201090 2009-12-28 02:22:04Z kientzle $
*/
/* !!ONLY FOR USE INTERNALLY TO LIBARCHIVE!! */
/*
* This header is the first thing included in any of the libarchive
* source files. As far as possible, platform-specific issues should
* be dealt with here and not within individual source files. I'm
* actively trying to minimize #if blocks within the main source,
* since they obfuscate the code.
*/
#ifndef ARCHIVE_PLATFORM_H_INCLUDED
#define ARCHIVE_PLATFORM_H_INCLUDED
/* archive.h and archive_entry.h require this. */
#define __LIBARCHIVE_BUILD 1
#if defined(PLATFORM_CONFIG_H)
/* Use hand-built config.h in environments that need it. */
#include PLATFORM_CONFIG_H
#elif defined(HAVE_CONFIG_H)
/* Most POSIX platforms use the 'configure' script to build config.h */
#include "config.h"
#else
/* Warn if the library hasn't been (automatically or manually) configured. */
#error Oops: No config.h and no pre-built configuration in archive_platform.h.
#endif
/* On macOS check for some symbols based on the deployment target version. */
#if defined(__APPLE__)
# undef HAVE_FUTIMENS
# undef HAVE_UTIMENSAT
# include <AvailabilityMacros.h>
# if MAC_OS_X_VERSION_MIN_REQUIRED >= 101300
# define HAVE_FUTIMENS 1
# define HAVE_UTIMENSAT 1
# endif
#endif
/* It should be possible to get rid of this by extending the feature-test
* macros to cover Windows API functions, probably along with non-trivial
* refactoring of code to find structures that sit more cleanly on top of
* either Windows or Posix APIs. */
#if (defined(__WIN32__) || defined(_WIN32) || defined(__WIN32)) && !defined(__CYGWIN__)
#include "archive_windows.h"
#else
#define la_stat(path,stref) stat(path,stref)
#endif
/*
* The config files define a lot of feature macros. The following
* uses those macros to select/define replacements and include key
* headers as required.
*/
/* Get a real definition for __FBSDID or __RCSID if we can */
#if HAVE_SYS_CDEFS_H
#include <sys/cdefs.h>
#endif
/* If not, define them so as to avoid dangling semicolons. */
#ifndef __FBSDID
#define __FBSDID(a) struct _undefined_hack
#endif
#ifndef __RCSID
#define __RCSID(a) struct _undefined_hack
#endif
/* Old glibc mbsnrtowcs fails assertions in our use case. */
#if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ <= 1
# undef HAVE_MBSNRTOWCS
#endif
/* Try to get standard C99-style integer type definitions. */
#if HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#if HAVE_STDINT_H
#include <stdint.h>
#endif
/* Borland warns about its own constants! */
#if defined(__BORLANDC__)
# undef UINT64_MAX
# undef UINT64_MIN
# undef INT64_MAX
# undef INT64_MIN
#endif
/* Some platforms lack the standard *_MAX definitions. */
#ifndef SIZE_MAX
#define SIZE_MAX (~(size_t)0)
#endif
#ifndef SSIZE_MAX
#define SSIZE_MAX ((ssize_t)(SIZE_MAX >> 1))
#endif
#ifndef UINT32_MAX
#define UINT32_MAX (~(uint32_t)0)
#endif
#ifndef INT32_MAX
#define INT32_MAX ((int32_t)(UINT32_MAX >> 1))
#endif
#ifndef INT32_MIN
#define INT32_MIN ((int32_t)(~INT32_MAX))
#endif
#ifndef UINT64_MAX
#define UINT64_MAX (~(uint64_t)0)
#endif
#ifndef INT64_MAX
#define INT64_MAX ((int64_t)(UINT64_MAX >> 1))
#endif
#ifndef INT64_MIN
#define INT64_MIN ((int64_t)(~INT64_MAX))
#endif
#ifndef UINTMAX_MAX
#define UINTMAX_MAX (~(uintmax_t)0)
#endif
#ifndef INTMAX_MAX
#define INTMAX_MAX ((intmax_t)(UINTMAX_MAX >> 1))
#endif
#ifndef INTMAX_MIN
#define INTMAX_MIN ((intmax_t)(~INTMAX_MAX))
#endif
/*
* If we can't restore metadata using a file descriptor, then
* for compatibility's sake, close files before trying to restore metadata.
*/
#if defined(HAVE_FCHMOD) || defined(HAVE_FUTIMES) || defined(HAVE_ACL_SET_FD) || defined(HAVE_ACL_SET_FD_NP) || defined(HAVE_FCHOWN)
#define CAN_RESTORE_METADATA_FD
#endif
/*
* glibc 2.24 deprecates readdir_r
*/
#if defined(HAVE_READDIR_R) && (!defined(__GLIBC__) || !defined(__GLIBC_MINOR__) || __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 24))
#define USE_READDIR_R 1
#else
#undef USE_READDIR_R
#endif
/* Set up defaults for internal error codes. */
#ifndef ARCHIVE_ERRNO_FILE_FORMAT
#if HAVE_EFTYPE
#define ARCHIVE_ERRNO_FILE_FORMAT EFTYPE
#else
#if HAVE_EILSEQ
#define ARCHIVE_ERRNO_FILE_FORMAT EILSEQ
#else
#define ARCHIVE_ERRNO_FILE_FORMAT EINVAL
#endif
#endif
#endif
#ifndef ARCHIVE_ERRNO_PROGRAMMER
#define ARCHIVE_ERRNO_PROGRAMMER EINVAL
#endif
#ifndef ARCHIVE_ERRNO_MISC
#define ARCHIVE_ERRNO_MISC (-1)
#endif
#if defined(__GNUC__) && (__GNUC__ >= 7)
#define __LA_FALLTHROUGH __attribute__((fallthrough))
#else
#define __LA_FALLTHROUGH
#endif
#endif /* !ARCHIVE_PLATFORM_H_INCLUDED */
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