E3.CSharpZipLib/Tar/TarHeader.cs

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// TarHeader.cs
//
// Copyright (C) 2001 Mike Krueger
//
// 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
// of the License, or (at your option) any later version.
//
// 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.
//
// 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
//
// Linking this library statically or dynamically with other modules is
// making a combined work based on this library.  Thus, the terms and
// conditions of the GNU General Public License cover the whole
// combination.
// 
// As a special exception, the copyright holders of this library give you
// permission to link this library with independent modules to produce an
// executable, regardless of the license terms of these independent
// modules, and to copy and distribute the resulting executable under
// terms of your choice, provided that you also meet, for each linked
// independent module, the terms and conditions of the license of that
// module.  An independent module is a module which is not derived from
// or based on this library.  If you modify this library, you may extend
// this exception to your version of the library, but you are not
// obligated to do so.  If you do not wish to do so, delete this
// exception statement from your version.


/* The tar format and its POSIX successor PAX have a long history which makes for compatability
   issues when creating and reading files.

   This is further complicated by a large number of programs with variations on formats
   One common issue is the handling of names longer than 100 characters.
   GNU style long names are currently supported.

This is the ustar (Posix 1003.1) header.

struct header 
{
	char t_name[100];          //   0 Filename
	char t_mode[8];            // 100 Permissions
	char t_uid[8];             // 108 Numerical User ID
	char t_gid[8];             // 116 Numerical Group ID
	char t_size[12];           // 124 Filesize
	char t_mtime[12];          // 136 st_mtime
	char t_chksum[8];          // 148 Checksum
	char t_typeflag;           // 156 Type of File
	char t_linkname[100];      // 157 Target of Links
	char t_magic[6];           // 257 "ustar" or other...
	char t_version[2];         // 263 Version fixed to 00
	char t_uname[32];          // 265 User Name
	char t_gname[32];          // 297 Group Name