commands/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 1.26 2008/12/06 07:37:14 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 #else
  41 /* Not having a config.h of some sort is a serious problem. */
  42 #include "config.h"
  43 #endif
  44
  45 /* Get a real definition for __FBSDID if we can */
  46 #if HAVE_SYS_CDEFS_H
  47 #include <sys/cdefs.h>
  48 #endif
  49
  50 /* If not, define it so as to avoid dangling semicolons. */
  51 #ifndef __FBSDID
  52 #define __FBSDID(a)     struct _undefined_hack
  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 #ifdef HAVE_LIBACL
  66 #include <acl/libacl.h>
  67 #endif
  68
  69 /*
  70  * Include "dirent.h" (or it's equivalent on several different platforms).
  71  *
  72  * This is slightly modified from the GNU autoconf recipe.
  73  * In particular, FreeBSD includes d_namlen in it's dirent structure,
  74  * so my configure script includes an explicit test for the d_namlen
  75  * field.
  76  */
  77 #if HAVE_DIRENT_H
  78 # include <dirent.h>
  79 # if HAVE_DIRENT_D_NAMLEN
  80 #  define DIRENT_NAMLEN(dirent) (dirent)->d_namlen
  81 # else
  82 #  define DIRENT_NAMLEN(dirent) strlen((dirent)->d_name)
  83 # endif
  84 #else
  85 # define dirent direct
  86 # define DIRENT_NAMLEN(dirent) (dirent)->d_namlen
  87 # if HAVE_SYS_NDIR_H
  88 #  include <sys/ndir.h>
  89 # endif
  90 # if HAVE_SYS_DIR_H
  91 #  include <sys/dir.h>
  92 # endif
  93 # if HAVE_NDIR_H
  94 #  include <ndir.h>
  95 # endif
  96 #endif
  97
  98 #if HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC
  99 #define ARCHIVE_STAT_CTIME_NANOS(st)    (st)->st_ctimespec.tv_nsec
 100 #define ARCHIVE_STAT_MTIME_NANOS(st)    (st)->st_mtimespec.tv_nsec
 101 #elif HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
 102 #define ARCHIVE_STAT_CTIME_NANOS(st)    (st)->st_ctim.tv_nsec
 103 #define ARCHIVE_STAT_MTIME_NANOS(st)    (st)->st_mtim.tv_nsec
 104 #elif HAVE_STRUCT_STAT_ST_MTIME_N
 105 #define ARCHIVE_STAT_CTIME_NANOS(st)    (st)->st_ctime_n
 106 #define ARCHIVE_STAT_MTIME_NANOS(st)    (st)->st_mtime_n
 107 #elif HAVE_STRUCT_STAT_ST_UMTIME
 108 #define ARCHIVE_STAT_CTIME_NANOS(st)    (st)->st_uctime * 1000
 109 #define ARCHIVE_STAT_MTIME_NANOS(st)    (st)->st_umtime * 1000
 110 #elif HAVE_STRUCT_STAT_ST_MTIME_USEC
 111 #define ARCHIVE_STAT_CTIME_NANOS(st)    (st)->st_ctime_usec * 1000
 112 #define ARCHIVE_STAT_MTIME_NANOS(st)    (st)->st_mtime_usec * 1000
 113 #else
 114 #define ARCHIVE_STAT_CTIME_NANOS(st)    (0)
 115 #define ARCHIVE_STAT_MTIME_NANOS(st)    (0)
 116 #endif
 117
 118 /* How to mark functions that don't return. */
 119 /* This facilitates use of some newer static code analysis tools. */
 120 #undef __LA_DEAD
 121 #if defined(__GNUC__) && (__GNUC__ > 2 || \
 122                           (__GNUC__ == 2 && __GNUC_MINOR__ >= 5))
 123 #define __LA_DEAD       __attribute__((__noreturn__))
 124 #else
 125 #define __LA_DEAD
 126 #endif
 127
 128 #if defined(_WIN32) && !defined(__CYGWIN__)
 129 #include "bsdtar_windows.h"
 130 #endif
 131
 132 #endif /* !BSDTAR_PLATFORM_H_INCLUDED */