161 lines
4.9 KiB
C
161 lines
4.9 KiB
C
/*-
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* Copyright (c) 2003-2007 Tim Kientzle
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* This header is the first thing included in any of the bsdtar
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* source files. As far as possible, platform-specific issues should
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* be dealt with here and not within individual source files.
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*/
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#ifndef BSDTAR_PLATFORM_H_INCLUDED
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#define BSDTAR_PLATFORM_H_INCLUDED
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#if defined(PLATFORM_CONFIG_H)
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/* Use hand-built config.h in environments that need it. */
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#include PLATFORM_CONFIG_H
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#elif defined(HAVE_CONFIG_H)
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/* Most POSIX platforms use the 'configure' script to build config.h */
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#include "config.h"
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#else
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/* Warn if bsdtar hasn't been (automatically or manually) configured. */
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#error Oops: No config.h and no built-in configuration in bsdtar_platform.h.
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#endif /* !HAVE_CONFIG_H */
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/* No non-FreeBSD platform will have __FBSDID, so just define it here. */
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#ifdef __FreeBSD__
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#include <sys/cdefs.h> /* For __FBSDID */
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#else
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/* Just leaving this macro replacement empty leads to a dangling semicolon. */
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#define __FBSDID(a) struct _undefined_hack
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#endif
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#ifdef HAVE_LIBARCHIVE
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/* If we're using the platform libarchive, include system headers. */
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#include <archive.h>
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#include <archive_entry.h>
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#else
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/* Otherwise, include user headers. */
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#include "archive.h"
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#include "archive_entry.h"
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#endif
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/*
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* Does this platform have complete-looking POSIX-style ACL support,
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* including some variant of the acl_get_perm() function (which was
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* omitted from the POSIX.1e draft)?
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*/
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#if HAVE_SYS_ACL_H && HAVE_ACL_PERMSET_T && HAVE_ACL_USER
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#if HAVE_ACL_GET_PERM || HAVE_ACL_GET_PERM_NP
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#define HAVE_POSIX_ACL 1
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#endif
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#endif
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#ifdef HAVE_LIBACL
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#include <acl/libacl.h>
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#endif
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#if HAVE_ACL_GET_PERM
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#define ACL_GET_PERM acl_get_perm
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#else
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#if HAVE_ACL_GET_PERM_NP
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#define ACL_GET_PERM acl_get_perm_np
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#endif
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#endif
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/*
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* Include "dirent.h" (or it's equivalent on several different platforms).
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*
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* This is slightly modified from the GNU autoconf recipe.
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* In particular, FreeBSD includes d_namlen in it's dirent structure,
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* so my configure script includes an explicit test for the d_namlen
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* field.
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*/
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#if HAVE_DIRENT_H
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# include <dirent.h>
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# if HAVE_DIRENT_D_NAMLEN
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# define DIRENT_NAMLEN(dirent) (dirent)->d_namlen
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# else
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# define DIRENT_NAMLEN(dirent) strlen((dirent)->d_name)
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# endif
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#else
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# define dirent direct
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# define DIRENT_NAMLEN(dirent) (dirent)->d_namlen
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# if HAVE_SYS_NDIR_H
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# include <sys/ndir.h>
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# endif
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# if HAVE_SYS_DIR_H
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# include <sys/dir.h>
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# endif
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# if HAVE_NDIR_H
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# include <ndir.h>
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# endif
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#endif
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/*
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* We need to be able to display a filesize using printf(). The type
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* and format string here must be compatible with one another and
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* large enough for any file.
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*/
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#if HAVE_UINTMAX_T
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#define BSDTAR_FILESIZE_TYPE uintmax_t
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#define BSDTAR_FILESIZE_PRINTF "%ju"
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#else
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#if HAVE_UNSIGNED_LONG_LONG
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#define BSDTAR_FILESIZE_TYPE unsigned long long
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#define BSDTAR_FILESIZE_PRINTF "%llu"
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#else
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#define BSDTAR_FILESIZE_TYPE unsigned long
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#define BSDTAR_FILESIZE_PRINTF "%lu"
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#endif
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#endif
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#if HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC
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#define ARCHIVE_STAT_CTIME_NANOS(st) (st)->st_ctimespec.tv_nsec
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#define ARCHIVE_STAT_MTIME_NANOS(st) (st)->st_mtimespec.tv_nsec
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#else
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#if HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
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#define ARCHIVE_STAT_CTIME_NANOS(st) (st)->st_ctim.tv_nsec
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#define ARCHIVE_STAT_MTIME_NANOS(st) (st)->st_mtim.tv_nsec
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#else
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#define ARCHIVE_STAT_CTIME_NANOS(st) (0)
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#define ARCHIVE_STAT_MTIME_NANOS(st) (0)
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#endif
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#endif
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/* How to mark functions that don't return. */
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/* This facilitates use of some newer static code analysis tools. */
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#undef __LA_DEAD
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#if defined(__GNUC__) && (__GNUC__ > 2 || \
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(__GNUC__ == 2 && __GNUC_MINOR__ >= 5))
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#define __LA_DEAD __attribute__((__noreturn__))
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#else
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#define __LA_DEAD
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#endif
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#endif /* !BSDTAR_PLATFORM_H_INCLUDED */
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