c47a0d494c
for libarchive error messages. Mostly, this avoids a portability headache related to copying va_list arguments (some FreeBSD 5 platforms require va_copy; FreeBSD 4 doesn't support va_copy at all). It also dramatically reduces the size of libarchive for embedded applications: a minimal "untar" program using libarchive can now be under 64k statically linked (as opposed to ~100k using library *printf() functions). MFC after: 14 days
170 lines
5.4 KiB
C
170 lines
5.4 KiB
C
/*-
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* Copyright (c) 2003-2004 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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* in this position and unchanged.
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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 libarchive
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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. I'm
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* actively trying to minimize #if blocks within the main source,
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* since they obfuscate the code.
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*/
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#ifndef ARCHIVE_PLATFORM_H_INCLUDED
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#define ARCHIVE_PLATFORM_H_INCLUDED
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#if HAVE_CONFIG_H
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#include "config.h"
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#else
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/* A default configuration for FreeBSD, used if there is no config.h. */
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#ifdef __FreeBSD__
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#define HAVE_BZLIB_H 1
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#define HAVE_CHFLAGS 1
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#define HAVE_DECL_STRERROR_R 1
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#define HAVE_EFTYPE 1
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#define HAVE_EILSEQ 1
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#define HAVE_ERRNO_H 1
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#define HAVE_FCHDIR 1
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#define HAVE_FCNTL_H 1
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#define HAVE_INTTYPES_H 1
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#define HAVE_LCHMOD 1
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#define HAVE_LCHOWN 1
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#define HAVE_LIMITS_H 1
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#define HAVE_LUTIMES 1
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#define HAVE_MALLOC 1
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#define HAVE_MEMMOVE 1
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#define HAVE_MEMORY_H 1
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#define HAVE_MEMSET 1
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#define HAVE_MKDIR 1
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#define HAVE_MKFIFO 1
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#define HAVE_PATHS_H 1
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#define HAVE_STDINT_H 1
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#define HAVE_STDLIB_H 1
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#define HAVE_STRCHR 1
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#define HAVE_STRDUP 1
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#define HAVE_STRERROR 1
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#define HAVE_STRERROR_R 1
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#define HAVE_STRINGS_H 1
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#define HAVE_STRING_H 1
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#define HAVE_STRRCHR 1
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#define HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC 1
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#define HAVE_STRUCT_STAT_ST_RDEV 1
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#if __FreeBSD__ > 4
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#define HAVE_SYS_ACL_H 1
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#endif
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#define HAVE_SYS_IOCTL_H 1
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#define HAVE_SYS_STAT_H 1
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#define HAVE_SYS_TIME_H 1
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#define HAVE_SYS_TYPES_H 1
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#define HAVE_SYS_WAIT_H 1
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#define HAVE_UNISTD_H 1
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#define HAVE_WCHAR_H 1
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#define HAVE_ZLIB_H 1
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#define STDC_HEADERS 1
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#define TIME_WITH_SYS_TIME 1
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#else /* !__FreeBSD__ */
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/* Warn if the library hasn't been (automatically or manually) configured. */
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#error Oops: No config.h and no built-in configuration in archive_platform.h.
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#endif /* !__FreeBSD__ */
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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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#define __FBSDID(a) /* null */
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#endif
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#if HAVE_INTTYPES_H
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#include <inttypes.h>
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#endif
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/* FreeBSD 4 and earlier lack intmax_t/uintmax_t */
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#if defined(__FreeBSD__) && __FreeBSD__ < 5
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#define intmax_t int64_t
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#define uintmax_t uint64_t
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#endif
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/* TODO: Test for the functions we use as well... */
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#if HAVE_SYS_ACL_H
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#define HAVE_POSIX_ACLS 1
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#endif
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/* Set up defaults for internal error codes. */
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#ifndef ARCHIVE_ERRNO_FILE_FORMAT
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#if HAVE_EFTYPE
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#define ARCHIVE_ERRNO_FILE_FORMAT EFTYPE
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#else
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#if HAVE_EILSEQ
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#define ARCHIVE_ERRNO_FILE_FORMAT EILSEQ
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#else
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#define ARCHIVE_ERRNO_FILE_FORMAT EINVAL
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#endif
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#endif
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#endif
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#ifndef ARCHIVE_ERRNO_PROGRAMMER
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#define ARCHIVE_ERRNO_PROGRAMMER EINVAL
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#endif
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#ifndef ARCHIVE_ERRNO_MISC
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#define ARCHIVE_ERRNO_MISC (-1)
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#endif
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/* Select the best way to set/get hi-res timestamps. */
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#if HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC
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/* FreeBSD uses "timespec" members. */
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#define ARCHIVE_STAT_ATIME_NANOS(st) (st)->st_atimespec.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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#define ARCHIVE_STAT_SET_ATIME_NANOS(st, n) (st)->st_atimespec.tv_nsec = (n)
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#define ARCHIVE_STAT_SET_CTIME_NANOS(st, n) (st)->st_ctimespec.tv_nsec = (n)
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#define ARCHIVE_STAT_SET_MTIME_NANOS(st, n) (st)->st_mtimespec.tv_nsec = (n)
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#else
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#if HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
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/* Linux uses "tim" members. */
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#define ARCHIVE_STAT_ATIME_NANOS(pstat) (pstat)->st_atim.tv_nsec
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#define ARCHIVE_STAT_CTIME_NANOS(pstat) (pstat)->st_ctim.tv_nsec
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#define ARCHIVE_STAT_MTIME_NANOS(pstat) (pstat)->st_mtim.tv_nsec
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#define ARCHIVE_STAT_SET_ATIME_NANOS(st, n) (st)->st_atim.tv_nsec = (n)
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#define ARCHIVE_STAT_SET_CTIME_NANOS(st, n) (st)->st_ctim.tv_nsec = (n)
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#define ARCHIVE_STAT_SET_MTIME_NANOS(st, n) (st)->st_mtim.tv_nsec = (n)
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#else
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/* If we can't find a better way, just use stubs. */
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#define ARCHIVE_STAT_ATIME_NANOS(pstat) 0
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#define ARCHIVE_STAT_CTIME_NANOS(pstat) 0
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#define ARCHIVE_STAT_MTIME_NANOS(pstat) 0
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#define ARCHIVE_STAT_SET_ATIME_NANOS(st, n)
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#define ARCHIVE_STAT_SET_CTIME_NANOS(st, n)
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#define ARCHIVE_STAT_SET_MTIME_NANOS(st, n)
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#endif
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#endif
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#endif /* !ARCHIVE_H_INCLUDED */
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