2 * Copyright (c) 2000, Red Hat, Inc.
3 * Copyright (c) 2002, Robert Collins.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * A copy of the GNU General Public License can be found at
13 * Written by DJ Delorie <dj@cygnus.com>
14 * Made OOP by R Collins <rbtcollins@hotmail.com>
18 #ifndef SETUP_ARCHIVE_TAR_H
19 #define SETUP_ARCHIVE_TAR_H
21 #include "io_stream.h"
27 char name
[100]; /* 0 */
28 char mode
[8]; /* 100 */
29 char uid
[8]; /* 108 */
30 char gid
[8]; /* 116 */
31 char size
[12]; /* 124 */
32 char mtime
[12]; /* 136 */
33 char chksum
[8]; /* 148 */
34 char typeflag
; /* 156 */
35 char linkname
[100]; /* 157 */
36 char magic
[6]; /* 257 */
37 char version
[2]; /* 263 */
38 char uname
[32]; /* 265 */
39 char gname
[32]; /* 297 */
40 char devmajor
[8]; /* 329 */
41 char devminor
[8]; /* 337 */
42 char prefix
[155]; /* 345 */
43 char junk
[12]; /* 500 */
47 typedef struct tar_map_result_type_s
49 struct tar_map_result_type_s
*next
;
50 std::string stored_name
;
51 std::string mapped_name
;
58 tar_state ():lasterr (0), eocf (0), have_longname ('\0'), file_offset (0),
59 file_length (0), header_read (0)
63 tar_map_result
= NULL
;
69 /* where in the current file are we? */
73 tar_header_type tar_header
;
74 char filename
[CYG_PATH_MAX
+ 512];
75 tar_map_result_type
*tar_map_result
;
78 class archive_tar_file
:public io_stream
83 archive_tar_file (tar_state
&);
84 virtual ssize_t
read (void *buffer
, size_t len
);
85 /* provide data to (double duh!) */
86 virtual ssize_t
write (const void *buffer
, size_t len
);
87 /* read data without removing it from the class's internal buffer */
88 virtual ssize_t
peek (void *buffer
, size_t len
);
90 virtual int seek (long where
, io_stream_seek_t whence
);
91 /* try guessing this one */
93 virtual time_t get_mtime ();
94 virtual mode_t
get_mode ();
95 virtual size_t get_size () {return state
.file_length
;};
96 virtual int set_mtime (time_t) { return 1; };
97 virtual ~ archive_tar_file ();
102 class archive_tar
:public archive
105 archive_tar (io_stream
* original
);
106 virtual io_stream
*extract_file ();
107 /* read data (duh!) */
108 virtual ssize_t
read (void *buffer
, size_t len
);
109 /* provide data to (double duh!) */
110 virtual ssize_t
write (const void *buffer
, size_t len
);
111 /* read data without removing it from the class's internal buffer */
112 virtual ssize_t
peek (void *buffer
, size_t len
);
113 virtual long tell ();
114 virtual int seek (long where
, io_stream_seek_t whence
);
115 /* try guessing this one */
116 virtual int error ();
117 /* Find out the next stream name -
118 * ie for foo.tar.gz, at offset 0, next_file_name = foo.tar
119 * for foobar that is an compress, next_file_name is the next
120 * extractable filename.
122 virtual const std::string
next_file_name ();
123 virtual archive_file_t
next_file_type ();
124 /* returns the mtime of the archive file, not of the current file */
125 virtual time_t get_mtime ();
126 virtual mode_t
get_mode ();
127 /* nonsense for a tarball */
128 virtual size_t get_size () {return 0;};
129 /* only of use when we support writing to tar */
130 virtual int set_mtime (time_t) { return 1; };
131 virtual const std::string
linktarget ();
132 virtual int skip_file ();
133 /* if you are still needing these hints... give up now! */
134 virtual ~ archive_tar ();
135 archive_tar
& operator= (const archive_tar
&);
136 archive_tar (archive_tar
const &);
142 unsigned int archive_children
;
145 /* Only one tarfile may be open at a time. gzipped files handled
148 /* returns zero on success, nonzero on failure */
149 //int tar_open (const char *pathname);
151 /* pass adjusted path, returns zero on success, nonzero on failure */
152 //int tar_read_file (char *path);
156 /* pass path to tar file and from/to pairs for path prefix (NULLs at
157 end , returns zero if completely successful, nonzero (counts
158 errors) on failure */
159 int tar_auto (char *pathname
, char **map
);
163 //int tar_mkdir_p (int isadir, char *path);
166 extern int _tar_verbose;
167 extern FILE * _tar_vfile;
170 #endif /* SETUP_ARCHIVE_TAR_H */