/*- * 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 # 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" /* The C library on Windows specifies a calling convention for callback * functions and exports; when we interact with them (capture pointers, * call and pass function pointers) we need to match their calling * convention. * This only matters when libarchive is built with /Gr, /Gz or /Gv * (which change the default calling convention.) */ #define __LA_LIBC_CC __cdecl #else #define la_stat(path,stref) stat(path,stref) #define __LA_LIBC_CC #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 #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 #endif #if HAVE_STDINT_H #include #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 /* Some platforms lack the standard PRIxN/PRIdN definitions. */ #if !HAVE_INTTYPES_H || !defined(PRIx32) || !defined(PRId32) #ifndef PRIx32 #if SIZEOF_INT == 4 #define PRIx32 "x" #elif SIZEOF_LONG == 4 #define PRIx32 "lx" #else #error No suitable 32-bit unsigned integer type found for this platform #endif #endif // PRIx32 #ifndef PRId32 #if SIZEOF_INT == 4 #define PRId32 "d" #elif SIZEOF_LONG == 4 #define PRId32 "ld" #else #error No suitable 32-bit signed integer type found for this platform #endif #endif // PRId32 #endif // !HAVE_INTTYPES_H || !defined(PRIx32) || !defined(PRId32) /* * 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 */