contrib/libarchive-2/tar/bsdtar_platform.h

   1 /*-
   2  * Copyright (c) 2003-2007 Tim Kientzle
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
  15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  17  * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
  18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  *
  25  * $FreeBSD: src/usr.bin/tar/bsdtar_platform.h,v 1.24 2007/04/12 04:45:32 kientzle Exp $
  26  */
  27
  28 /*
  29  * This header is the first thing included in any of the bsdtar
  30  * source files.  As far as possible, platform-specific issues should
  31  * be dealt with here and not within individual source files.
  32  */
  33
  34 #ifndef BSDTAR_PLATFORM_H_INCLUDED
  35 #define BSDTAR_PLATFORM_H_INCLUDED
  36
  37 #if defined(PLATFORM_CONFIG_H)
  38 /* Use hand-built config.h in environments that need it. */
  39 #include PLATFORM_CONFIG_H
  40 #elif defined(HAVE_CONFIG_H)
  41 /* Most POSIX platforms use the 'configure' script to build config.h */
  42 #include "../config.h"
  43 #else
  44 /* Warn if bsdtar hasn't been (automatically or manually) configured. */
  45 #error Oops: No config.h and no built-in configuration in bsdtar_platform.h.
  46 #endif /* !HAVE_CONFIG_H */
  47
  48 /* No non-FreeBSD platform will have __FBSDID, so just define it here. */
  49 #ifdef __FreeBSD__
  50 #include <sys/cdefs.h>  /* For __FBSDID */
  51 #else
  52 #define __FBSDID(a)     /* null */
  53 #endif
  54
  55 #ifdef HAVE_LIBARCHIVE
  56 /* If we're using the platform libarchive, include system headers. */
  57 #include <archive.h>
  58 #include <archive_entry.h>
  59 #else
  60 /* Otherwise, include user headers. */
  61 #include "archive.h"
  62 #include "archive_entry.h"
  63 #endif
  64
  65 /*
  66  * Does this platform have complete-looking POSIX-style ACL support,
  67  * including some variant of the acl_get_perm() function (which was
  68  * omitted from the POSIX.1e draft)?
  69  */
  70 #if HAVE_SYS_ACL_H && HAVE_ACL_PERMSET_T && HAVE_ACL_USER
  71 #if HAVE_ACL_GET_PERM || HAVE_ACL_GET_PERM_NP
  72 #define HAVE_POSIX_ACL  1
  73 #endif
  74 #endif
  75
  76 #ifdef HAVE_LIBACL
  77 #include <acl/libacl.h>
  78 #endif
  79
  80 #if HAVE_ACL_GET_PERM
  81 #define ACL_GET_PERM acl_get_perm
  82 #else
  83 #if HAVE_ACL_GET_PERM_NP
  84 #define ACL_GET_PERM acl_get_perm_np
  85 #endif
  86 #endif
  87
  88 /*
  89  * Include "dirent.h" (or it's equivalent on several different platforms).
  90  *
  91  * This is slightly modified from the GNU autoconf recipe.
  92  * In particular, FreeBSD includes d_namlen in it's dirent structure,
  93  * so my configure script includes an explicit test for the d_namlen
  94  * field.
  95  */
  96 #if HAVE_DIRENT_H
  97 # include <dirent.h>
  98 # if HAVE_DIRENT_D_NAMLEN
  99 #  define DIRENT_NAMLEN(dirent) (dirent)->d_namlen
 100 # else
 101 #  define DIRENT_NAMLEN(dirent) strlen((dirent)->d_name)
 102 # endif
 103 #else
 104 # define dirent direct
 105 # define DIRENT_NAMLEN(dirent) (dirent)->d_namlen
 106 # if HAVE_SYS_NDIR_H
 107 #  include <sys/ndir.h>
 108 # endif
 109 # if HAVE_SYS_DIR_H
 110 #  include <sys/dir.h>
 111 # endif
 112 # if HAVE_NDIR_H
 113 #  include <ndir.h>
 114 # endif
 115 #endif
 116
 117
 118 /*
 119  * We need to be able to display a filesize using printf().  The type
 120  * and format string here must be compatible with one another and
 121  * large enough for any file.
 122  */
 123 #if HAVE_UINTMAX_T
 124 #define BSDTAR_FILESIZE_TYPE    uintmax_t
 125 #define BSDTAR_FILESIZE_PRINTF  "%ju"
 126 #else
 127 #if HAVE_UNSIGNED_LONG_LONG
 128 #define BSDTAR_FILESIZE_TYPE    unsigned long long
 129 #define BSDTAR_FILESIZE_PRINTF  "%llu"
 130 #else
 131 #define BSDTAR_FILESIZE_TYPE    unsigned long
 132 #define BSDTAR_FILESIZE_PRINTF  "%lu"
 133 #endif
 134 #endif
 135
 136 #if HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC
 137 #define ARCHIVE_STAT_CTIME_NANOS(st)    (st)->st_ctimespec.tv_nsec
 138 #define ARCHIVE_STAT_MTIME_NANOS(st)    (st)->st_mtimespec.tv_nsec
 139 #else
 140 #if HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
 141 #define ARCHIVE_STAT_CTIME_NANOS(st)    (st)->st_ctim.tv_nsec
 142 #define ARCHIVE_STAT_MTIME_NANOS(st)    (st)->st_mtim.tv_nsec
 143 #else
 144 #define ARCHIVE_STAT_CTIME_NANOS(st)    (0)
 145 #define ARCHIVE_STAT_MTIME_NANOS(st)    (0)
 146 #endif
 147 #endif
 148
 149 #endif /* !BSDTAR_PLATFORM_H_INCLUDED */