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 1.25 2008/01/02 00:23:00 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 /* Just leaving this macro replacement empty leads to a dangling semicolon. */
  53 #define __FBSDID(a)     struct _undefined_hack
  54 #endif
  55
  56 #ifdef HAVE_LIBARCHIVE
  57 /* If we're using the platform libarchive, include system headers. */
  58 #include <archive.h>
  59 #include <archive_entry.h>
  60 #else
  61 /* Otherwise, include user headers. */
  62 #include "archive.h"
  63 #include "archive_entry.h"
  64 #endif
  65
  66 /*
  67  * Does this platform have complete-looking POSIX-style ACL support,
  68  * including some variant of the acl_get_perm() function (which was
  69  * omitted from the POSIX.1e draft)?
  70  */
  71 #if HAVE_SYS_ACL_H && HAVE_ACL_PERMSET_T && HAVE_ACL_USER
  72 #if HAVE_ACL_GET_PERM || HAVE_ACL_GET_PERM_NP
  73 #define HAVE_POSIX_ACL  1
  74 #endif
  75 #endif
  76
  77 #ifdef HAVE_LIBACL
  78 #include <acl/libacl.h>
  79 #endif
  80
  81 #if HAVE_ACL_GET_PERM
  82 #define ACL_GET_PERM acl_get_perm
  83 #else
  84 #if HAVE_ACL_GET_PERM_NP
  85 #define ACL_GET_PERM acl_get_perm_np
  86 #endif
  87 #endif
  88
  89 /*
  90  * Include "dirent.h" (or it's equivalent on several different platforms).
  91  *
  92  * This is slightly modified from the GNU autoconf recipe.
  93  * In particular, FreeBSD includes d_namlen in it's dirent structure,
  94  * so my configure script includes an explicit test for the d_namlen
  95  * field.
  96  */
  97 #if HAVE_DIRENT_H
  98 # include <dirent.h>
  99 # if HAVE_DIRENT_D_NAMLEN
 100 #  define DIRENT_NAMLEN(dirent) (dirent)->d_namlen
 101 # else
 102 #  define DIRENT_NAMLEN(dirent) strlen((dirent)->d_name)
 103 # endif
 104 #else
 105 # define dirent direct
 106 # define DIRENT_NAMLEN(dirent) (dirent)->d_namlen
 107 # if HAVE_SYS_NDIR_H
 108 #  include <sys/ndir.h>
 109 # endif
 110 # if HAVE_SYS_DIR_H
 111 #  include <sys/dir.h>
 112 # endif
 113 # if HAVE_NDIR_H
 114 #  include <ndir.h>
 115 # endif
 116 #endif
 117
 118
 119 /*
 120  * We need to be able to display a filesize using printf().  The type
 121  * and format string here must be compatible with one another and
 122  * large enough for any file.
 123  */
 124 #if HAVE_UINTMAX_T
 125 #define BSDTAR_FILESIZE_TYPE    uintmax_t
 126 #define BSDTAR_FILESIZE_PRINTF  "%ju"
 127 #else
 128 #if HAVE_UNSIGNED_LONG_LONG
 129 #define BSDTAR_FILESIZE_TYPE    unsigned long long
 130 #define BSDTAR_FILESIZE_PRINTF  "%llu"
 131 #else
 132 #define BSDTAR_FILESIZE_TYPE    unsigned long
 133 #define BSDTAR_FILESIZE_PRINTF  "%lu"
 134 #endif
 135 #endif
 136
 137 #if HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC
 138 #define ARCHIVE_STAT_CTIME_NANOS(st)    (st)->st_ctimespec.tv_nsec
 139 #define ARCHIVE_STAT_MTIME_NANOS(st)    (st)->st_mtimespec.tv_nsec
 140 #else
 141 #if HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
 142 #define ARCHIVE_STAT_CTIME_NANOS(st)    (st)->st_ctim.tv_nsec
 143 #define ARCHIVE_STAT_MTIME_NANOS(st)    (st)->st_mtim.tv_nsec
 144 #else
 145 #define ARCHIVE_STAT_CTIME_NANOS(st)    (0)
 146 #define ARCHIVE_STAT_MTIME_NANOS(st)    (0)
 147 #endif
 148 #endif
 149
 150 #endif /* !BSDTAR_PLATFORM_H_INCLUDED */