/*-
* Copyright (c) 2003-2007 Tim Kientzle
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD: src/lib/libarchive/archive_entry_private.h,v 1.6 2008/09/30 03:53:03 kientzle Exp $
*/
#ifndef __LIBARCHIVE_BUILD
#error This header is only to be used internally to libarchive.
#endif
#ifndef ARCHIVE_ENTRY_PRIVATE_H_INCLUDED
#define ARCHIVE_ENTRY_PRIVATE_H_INCLUDED
#include "archive_string.h"
/*
* Handle wide character (i.e., Unicode) and non-wide character
* strings transparently.
*/
struct aes {
struct archive_string aes_mbs;
struct archive_string aes_utf8;
const wchar_t *aes_wcs;
/* Bitmap of which of the above are valid. Because we're lazy
* about malloc-ing and reusing the underlying storage, we
* can't rely on NULL pointers to indicate whether a string
* has been set. */
int aes_set;
#define AES_SET_MBS 1
#define AES_SET_UTF8 2
#define AES_SET_WCS 4
};
struct ae_acl {
struct ae_acl *next;
int type; /* E.g., access or default */
int tag; /* E.g., user/group/other/mask */
int permset; /* r/w/x bits */
int id; /* uid/gid for user/group */
struct aes name; /* uname/gname */
};
struct ae_xattr {
struct ae_xattr *next;
char *name;
void *value;
size_t size;
};
/*
* Description of an archive entry.
*
* Basically, this is a "struct stat" with a few text fields added in.
*
* TODO: Add "comment", "charset", and possibly other entries
* that are supported by "pax interchange" format. However, GNU, ustar,
* cpio, and other variants don't support these features, so they're not an
* excruciatingly high priority right now.
*
* TODO: "pax interchange" format allows essentially arbitrary
* key/value attributes to be attached to any entry. Supporting
* such extensions may make this library useful for special
* applications (e.g., a package manager could attach special
* package-management attributes to each entry). There are tricky
* API issues involved, so this is not going to happen until
* there's a real demand for it.
*
* TODO: Design a good API for handling sparse files.
*/
struct archive_entry {
/*
* Note that ae_stat.st_mode & AE_IFMT can be 0!
*
* This occurs when the actual file type of the object is not
* in the archive. For example, 'tar' archives store
* hardlinks without marking the type of the underlying
* object.
*/
/*
* Read archive_entry_copy_stat.c for an explanation of why I
* don't just use "struct stat" instead of "struct aest" here
* and why I have this odd pointer to a separately-allocated
* struct stat.
*/
void *stat;
int stat_valid; /* Set to 0 whenever a field in aest changes. */
struct aest {
int64_t aest_atime;
uint32_t aest_atime_nsec;
int64_t aest_ctime;
uint32_t aest_ctime_nsec;
int64_t aest_mtime;
uint32_t aest_mtime_nsec;
int64_t aest_birthtime;
uint32_t aest_birthtime_nsec;
gid_t aest_gid;
int64_t aest_ino;
mode_t aest_mode;
uint32_t aest_nlink;
uint64_t aest_size;
uid_t aest_uid;
/*
* Because converting between device codes and
* major/minor values is platform-specific and
* inherently a bit risky, we only do that conversion
* lazily. That way, we will do a better job of
* preserving information in those cases where no
* conversion is actually required.
*/
int aest_dev_is_broken_down;
dev_t aest_dev;
dev_t aest_devmajor;
dev_t aest_devminor;
int aest_rdev_is_broken_down;
dev_t aest_rdev;
dev_t aest_rdevmajor;
dev_t aest_rdevminor;
} ae_stat;
int ae_set; /* bitmap of fields that are currently set */
#define AE_SET_HARDLINK 1
#define AE_SET_SYMLINK 2
#define AE_SET_ATIME 4
#define AE_SET_CTIME 8
#define AE_SET_MTIME 16
#define AE_SET_BIRTHTIME 32
#define AE_SET_SIZE 64
/*
* Use aes here so that we get transparent mbs<->wcs conversions.
*/
struct aes ae_fflags_text; /* Text fflags per fflagstostr(3) */
unsigned long ae_fflags_set; /* Bitmap fflags */
unsigned long ae_fflags_clear;
struct aes ae_gname; /* Name of owning group */
struct aes ae_hardlink; /* Name of target for hardlink */
struct aes ae_pathname; /* Name of entry */
struct aes ae_symlink; /* symlink contents */
struct aes ae_uname; /* Name of owner */
/* Not used within libarchive; useful for some clients. */
struct aes ae_sourcepath; /* Path this entry is sourced from. */
/* ACL support. */
struct ae_acl *acl_head;
struct ae_acl *acl_p;
int acl_state; /* See acl_next for details. */
wchar_t *acl_text_w;
/* extattr support. */
struct ae_xattr *xattr_head;
struct ae_xattr *xattr_p;
/* Miscellaneous. */
char strmode[12];
};
#endif /* ARCHIVE_ENTRY_PRIVATE_H_INCLUDED */