/*-

 * 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"

#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

/* 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__)

# if HAVE_DECL_UINT64_MAX

#  undef	UINT64_MAX

#  undef	HAVE_DECL_UINT64_MAX

# endif

# if HAVE_DECL_UINT64_MIN

#  undef	UINT64_MIN

#  undef	HAVE_DECL_UINT64_MIN

# endif

# if HAVE_DECL_INT64_MAX

#  undef	INT64_MAX

#  undef	HAVE_DECL_INT64_MAX

# endif

# if HAVE_DECL_INT64_MIN

#  undef	INT64_MIN

#  undef	HAVE_DECL_INT64_MIN

# endif

#endif

/* Some platforms lack the standard *_MAX definitions. */

#if !HAVE_DECL_SIZE_MAX

#define	SIZE_MAX (~(size_t)0)

#endif

#if !HAVE_DECL_SSIZE_MAX

#define	SSIZE_MAX ((ssize_t)(SIZE_MAX >> 1))

#endif

#if !HAVE_DECL_UINT32_MAX

#define	UINT32_MAX (~(uint32_t)0)

#endif

#if !HAVE_DECL_INT32_MAX

#define	INT32_MAX ((int32_t)(UINT32_MAX >> 1))

#endif

#if !HAVE_DECL_INT32_MIN

#define	INT32_MIN ((int32_t)(~INT32_MAX))

#endif

#if !HAVE_DECL_UINT64_MAX

#define	UINT64_MAX (~(uint64_t)0)

#endif

#if !HAVE_DECL_INT64_MAX

#define	INT64_MAX ((int64_t)(UINT64_MAX >> 1))

#endif

#if !HAVE_DECL_INT64_MIN

#define	INT64_MIN ((int64_t)(~INT64_MAX))

#endif

#if !HAVE_DECL_UINTMAX_MAX

#define	UINTMAX_MAX (~(uintmax_t)0)

#endif

#if !HAVE_DECL_INTMAX_MAX

#define	INTMAX_MAX ((intmax_t)(UINTMAX_MAX >> 1))

#endif

#if !HAVE_DECL_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 */