xref: /freebsd/contrib/libarchive/tar/bsdtar_platform.h (revision 40a8ac8f62b535d30349faf28cf47106b7041b83)
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  * $FreeBSD$
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 its equivalent on several different platforms).
71  *
72  * This is slightly modified from the GNU autoconf recipe.
73  * In particular, FreeBSD includes d_namlen in its 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 */
133