/* GNU tar Archive Format description.
- Copyright (C) 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
- 2000, 2001, 2003, 2004, 2005 Free Software Foundation, Inc.
+ Copyright 1988-1989, 1991-1997, 2000-2001, 2003-2007, 2012-2014 Free
+ Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; either version 2, or (at your option) any later
- version.
+ This file is part of GNU tar.
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
- Public License for more details.
+ GNU tar is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ GNU tar is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* tar Header Block, from POSIX 1003.1-1990. */
/* tar Header Block, GNU extensions. */
/* In GNU tar, SYMTYPE is for to symbolic links, and CONTTYPE is for
- contiguous files, so maybe disobeying the `reserved' comment in POSIX
+ contiguous files, so maybe disobeying the "reserved" comment in POSIX
header description. I suspect these were meant to be used this way, and
- should not have really been `reserved' in the published standards. */
+ should not have really been "reserved" in the published standards. */
/* *BEWARE* *BEWARE* *BEWARE* that the following information is still
boiling, and may change. Even if the OLDGNU format description should be
'A' Solaris Access Control List
'E' Solaris Extended Attribute File
'I' Inode only, as in 'star'
+ 'N' Obsolete GNU tar, for file names that do not fit into the main header.
'X' POSIX 1003.1-2001 eXtended (VU version) */
/* This is a dir entry that contains the names of files that were in the
/* This is the continuation of a file that began on another volume. */
#define GNUTYPE_MULTIVOL 'M'
-/* For storing filenames that do not fit into the main header. */
-#define GNUTYPE_NAMES 'N'
-
/* This is for sparse files. */
#define GNUTYPE_SPARSE 'S'
/* Solaris extended header */
#define SOLARIS_XHDTYPE 'X'
-\f
-/* Jörg Schilling star header */
+/* J@"org Schilling star header */
struct star_header
{ /* byte offset */
#define SPARSES_IN_STAR_HEADER 4
#define SPARSES_IN_STAR_EXT_HEADER 21
-struct star_in_header {
+struct star_in_header
+{
char fill[345]; /* 0 Everything that is before t_prefix */
char prefix[1]; /* 345 t_name prefix */
char fill2; /* 346 */
char xmagic[4]; /* 508 "tar" */
};
-struct star_ext_header {
+struct star_ext_header
+{
struct sparse sp[SPARSES_IN_STAR_EXT_HEADER];
char isextended;
};
+/* END */
\f
/* tar Header Block, overall structure. */
/* Information about a sparse file. */
struct sp_array
+{
+ off_t offset;
+ off_t numbytes;
+};
+
+struct xheader
+{
+ struct obstack *stk;
+ size_t size;
+ char *buffer;
+ uintmax_t string_length;
+};
+
+/* Information about xattrs for a file. */
+struct xattr_array
{
- off_t offset;
- size_t numbytes;
+ char *xkey;
+ char *xval_ptr;
+ size_t xval_len;
};
struct tar_stat_info
char *uname; /* user name of owner */
char *gname; /* group name of owner */
+
+ char *cntx_name; /* SELinux context for the current archive entry. */
+
+ char *acls_a_ptr; /* Access ACLs for the current archive entry. */
+ size_t acls_a_len; /* Access ACLs for the current archive entry. */
+
+ char *acls_d_ptr; /* Default ACLs for the current archive entry. */
+ size_t acls_d_len; /* Default ACLs for the current archive entry. */
+
struct stat stat; /* regular filesystem stat */
/* STAT doesn't always have access, data modification, and status
bool is_sparse; /* Is the file sparse */
/* For sparse files: */
+ unsigned sparse_major;
+ unsigned sparse_minor;
size_t sparse_map_avail; /* Index to the first unused element in
sparse_map array. Zero if the file is
not sparse */
size_t sparse_map_size; /* Size of the sparse map */
struct sp_array *sparse_map;
+ size_t xattr_map_size; /* Size of the xattr map */
+ struct xattr_array *xattr_map;
+
+ /* Extended headers */
+ struct xheader xhdr;
+
/* For dumpdirs */
bool is_dumpdir; /* Is the member a dumpdir? */
bool skipped; /* The member contents is already read
(for GNUTYPE_DUMPDIR) */
- char *dumpdir; /* Contents of the dump directory */
+ char *dumpdir; /* Contents of the dump directory */
+
+ /* Parent directory, if creating an archive. This is null if the
+ file is at the top level. */
+ struct tar_stat_info *parent;
+
+ /* Directory stream. If this is not null, it is in control of FD,
+ and should be closed instead of FD. */
+ DIR *dirstream;
+
+ /* File descriptor, if creating an archive, and if a directory or a
+ regular file or a contiguous file.
+
+ It is zero if no file descriptor is available, either because it
+ was never needed or because it was open and then closed to
+ conserve on file descriptors. (Standard input is never used
+ here, so zero cannot be a valid file descriptor.)
+
+ It is negative if it could not be reopened after it was closed.
+ Negate it to find out what errno was when the reopen failed. */
+ int fd;
};
union block
struct star_in_header star_in_header;
struct star_ext_header star_ext_header;
};
-
-/* End of Format description. */
projects / chaz / tar / blobdiff