155 lines
5.4 KiB
C
155 lines
5.4 KiB
C
/*-
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* 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
|
|
|
|
#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
|
|
|
|
/*
|
|
* The config files define a lot of feature macros. The following
|
|
* uses those macros to select/define replacements and include key
|
|
* headers as required.
|
|
*/
|
|
|
|
/* No non-FreeBSD platform will have __FBSDID, so just define it here. */
|
|
#ifdef __FreeBSD__
|
|
#include <sys/cdefs.h> /* For __FBSDID */
|
|
#else
|
|
#define __FBSDID(a) /* null */
|
|
#endif
|
|
|
|
/* Try to get standard C99-style integer type definitions. */
|
|
#if HAVE_INTTYPES_H
|
|
#include <inttypes.h>
|
|
#elif HAVE_STDINT_H
|
|
#include <stdint.h>
|
|
#endif
|
|
|
|
/* Some platforms lack the standard *_MAX definitions. */
|
|
#if !HAVE_DECL_SIZE_MAX
|
|
#define SIZE_MAX (~(size_t)0)
|
|
#endif
|
|
#if !HAVE_DECL_UINT32_MAX
|
|
#define UINT32_MAX (~(uint32_t)0)
|
|
#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 this platform has <sys/acl.h>, acl_create(), acl_init(),
|
|
* acl_set_file(), and ACL_USER, we assume it has the rest of the
|
|
* POSIX.1e draft functions used in archive_read_extract.c.
|
|
*/
|
|
#if HAVE_SYS_ACL_H && HAVE_ACL_CREATE_ENTRY && HAVE_ACL_INIT && HAVE_ACL_SET_FILE && HAVE_ACL_USER
|
|
#define HAVE_POSIX_ACL 1
|
|
#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
|
|
|
|
/* 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
|
|
|
|
/* Select the best way to set/get hi-res timestamps. */
|
|
#if HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC
|
|
/* FreeBSD uses "timespec" members. */
|
|
#define ARCHIVE_STAT_ATIME_NANOS(st) (st)->st_atimespec.tv_nsec
|
|
#define ARCHIVE_STAT_CTIME_NANOS(st) (st)->st_ctimespec.tv_nsec
|
|
#define ARCHIVE_STAT_MTIME_NANOS(st) (st)->st_mtimespec.tv_nsec
|
|
#define ARCHIVE_STAT_SET_ATIME_NANOS(st, n) (st)->st_atimespec.tv_nsec = (n)
|
|
#define ARCHIVE_STAT_SET_CTIME_NANOS(st, n) (st)->st_ctimespec.tv_nsec = (n)
|
|
#define ARCHIVE_STAT_SET_MTIME_NANOS(st, n) (st)->st_mtimespec.tv_nsec = (n)
|
|
#else
|
|
#if HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
|
|
/* Linux uses "tim" members. */
|
|
#define ARCHIVE_STAT_ATIME_NANOS(pstat) (pstat)->st_atim.tv_nsec
|
|
#define ARCHIVE_STAT_CTIME_NANOS(pstat) (pstat)->st_ctim.tv_nsec
|
|
#define ARCHIVE_STAT_MTIME_NANOS(pstat) (pstat)->st_mtim.tv_nsec
|
|
#define ARCHIVE_STAT_SET_ATIME_NANOS(st, n) (st)->st_atim.tv_nsec = (n)
|
|
#define ARCHIVE_STAT_SET_CTIME_NANOS(st, n) (st)->st_ctim.tv_nsec = (n)
|
|
#define ARCHIVE_STAT_SET_MTIME_NANOS(st, n) (st)->st_mtim.tv_nsec = (n)
|
|
#else
|
|
/* If we can't find a better way, just use stubs. */
|
|
#define ARCHIVE_STAT_ATIME_NANOS(pstat) 0
|
|
#define ARCHIVE_STAT_CTIME_NANOS(pstat) 0
|
|
#define ARCHIVE_STAT_MTIME_NANOS(pstat) 0
|
|
#define ARCHIVE_STAT_SET_ATIME_NANOS(st, n) ((void)(n))
|
|
#define ARCHIVE_STAT_SET_CTIME_NANOS(st, n) ((void)(n))
|
|
#define ARCHIVE_STAT_SET_MTIME_NANOS(st, n) ((void)(n))
|
|
#endif
|
|
#endif
|
|
|
|
#endif /* !ARCHIVE_H_INCLUDED */
|