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freebsd-skq/lib/libarchive/archive_platform.h
kientzle 50bb724108 Portability and style fixes: 
* Actually use the HAVE_<header>_H macros to conditionally include
    system headers.  They've been defined for a long time, but only
    used in a few places.  Now they're used pretty consistently
    throughout.
  * Fill in a lot of missing casts for conversions from void*.
    Although Standard C doesn't require this, some people have been
    trying to use C++ compilers with this code, and they do require it.

Bit-for-bit, the compiled object files are identical, except for
one assert() whose line number changed, so I'm pretty confident I
didn't break anything.  ;-)
2006-11-10 06:39:46 +00:00

204 lines
6.6 KiB
C
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/*-
* Copyright (c) 2003-2004 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
* in this position and unchanged.
* 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 HAVE_CONFIG_H
#include "../config.h"
#else
/*
* If there's no 'config.h' file, check if we have a hand-coded config
* for this platform. This handles systems where the library is built
* without running the configure script, such as FreeBSD (where
* libarchive is part of the base system).
*/
#ifdef __FreeBSD__
/* Begin of hand-coded __FreeBSD__ configuration. */
#if __FreeBSD__ > 4
#define HAVE_ACL_CREATE_ENTRY 1
#define HAVE_ACL_INIT 1
#define HAVE_ACL_SET_FD 1
#define HAVE_ACL_SET_FD_NP 1
#define HAVE_ACL_SET_FILE 1
#define HAVE_ACL_USER 1
#endif
#define HAVE_BZLIB_H 1
#define HAVE_CHFLAGS 1
#define HAVE_DECL_STRERROR_R 1
#define HAVE_EFTYPE 1
#define HAVE_EILSEQ 1
#define HAVE_ERRNO_H 1
#define HAVE_FCHDIR 1
#define HAVE_FCHFLAGS 1
#define HAVE_FCHMOD 1
#define HAVE_FCHOWN 1
#define HAVE_FCNTL_H 1
#define HAVE_FSEEKO 1
#define HAVE_FUTIMES 1
#define HAVE_GRP_H 1
#define HAVE_INTTYPES_H 1
#define HAVE_LCHFLAGS 1
#define HAVE_LCHMOD 1
#define HAVE_LCHOWN 1
#define HAVE_LIMITS_H 1
#define HAVE_LUTIMES 1
#define HAVE_MALLOC 1
#define HAVE_MEMMOVE 1
#define HAVE_MEMSET 1
#define HAVE_MKDIR 1
#define HAVE_MKFIFO 1
#define HAVE_PWD_H 1
#define HAVE_STDINT_H 1
#define HAVE_STDLIB_H 1
#define HAVE_STRCHR 1
#define HAVE_STRDUP 1
#define HAVE_STRERROR 1
#define HAVE_STRERROR_R 1
#define HAVE_STRINGS_H 1
#define HAVE_STRING_H 1
#define HAVE_STRRCHR 1
#define HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC 1
#define HAVE_STRUCT_STAT_ST_RDEV 1
#define HAVE_SYS_ACL_H 1
#define HAVE_SYS_IOCTL_H 1
#define HAVE_SYS_STAT_H 1
#define HAVE_SYS_TIME_H 1
#define HAVE_SYS_TYPES_H 1
#define HAVE_SYS_WAIT_H 1
#define HAVE_TIMEGM 1
#define HAVE_UNISTD_H 1
#define HAVE_WCHAR_H 1
#define HAVE_ZLIB_H 1
#define STDC_HEADERS 1
#define TIME_WITH_SYS_TIME 1
/* End of __FreeBSD__ definitions. */
#else /* !__FreeBSD__ */
/* Warn if the library hasn't been (automatically or manually) configured. */
#error Oops: No config.h and no built-in configuration in archive_platform.h.
#endif /* !__FreeBSD__ */
#endif /* !HAVE_CONFIG_H */
/* 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
#if HAVE_INTTYPES_H
#include <inttypes.h>
#elif HAVE_STDINT_H
#include <stdint.h>
#endif
/* FreeBSD 4 and earlier lack intmax_t/uintmax_t */
#if defined(__FreeBSD__) && __FreeBSD__ < 5
#define intmax_t int64_t
#define uintmax_t uint64_t
#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 */
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