summaryrefslogtreecommitdiff
path: root/Utilities/cmlibarchive/libarchive/archive_write_private.h
blob: 0dfd1b1bca918f1934d8c8f7cccc6eb5a16a495f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
/*-
 * 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: head/lib/libarchive/archive_write_private.h 201155 2009-12-29 05:20:12Z kientzle $
 */

#ifndef __LIBARCHIVE_BUILD
#ifndef __LIBARCHIVE_TEST
#error This header is only to be used internally to libarchive.
#endif
#endif

#ifndef ARCHIVE_WRITE_PRIVATE_H_INCLUDED
#define	ARCHIVE_WRITE_PRIVATE_H_INCLUDED

#include "archive.h"
#include "archive_string.h"
#include "archive_private.h"

struct archive_write;

struct archive_write_filter {
	int64_t bytes_written;
	struct archive *archive; /* Associated archive. */
	struct archive_write_filter *next_filter; /* Who I write to. */
	int	(*options)(struct archive_write_filter *,
	    const char *key, const char *value);
	int	(*open)(struct archive_write_filter *);
	int	(*write)(struct archive_write_filter *, const void *, size_t);
	int	(*close)(struct archive_write_filter *);
	int	(*free)(struct archive_write_filter *);
	void	 *data;
	const char *name;
	int	  code;
	int	  bytes_per_block;
	int	  bytes_in_last_block;
};

#if ARCHIVE_VERSION < 4000000
void __archive_write_filters_free(struct archive *);
#endif

struct archive_write_filter *__archive_write_allocate_filter(struct archive *);

int __archive_write_output(struct archive_write *, const void *, size_t);
int __archive_write_nulls(struct archive_write *, size_t);
int __archive_write_filter(struct archive_write_filter *, const void *, size_t);
int __archive_write_open_filter(struct archive_write_filter *);
int __archive_write_close_filter(struct archive_write_filter *);

struct archive_write {
	struct archive	archive;

	/* Dev/ino of the archive being written. */
	int		  skip_file_set;
	int64_t		  skip_file_dev;
	int64_t		  skip_file_ino;

	/* Utility:  Pointer to a block of nulls. */
	const unsigned char	*nulls;
	size_t			 null_length;

	/* Callbacks to open/read/write/close archive stream. */
	archive_open_callback	*client_opener;
	archive_write_callback	*client_writer;
	archive_close_callback	*client_closer;
	void			*client_data;

	/*
	 * Blocking information.  Note that bytes_in_last_block is
	 * misleadingly named; I should find a better name.  These
	 * control the final output from all compressors, including
	 * compression_none.
	 */
	int		  bytes_per_block;
	int		  bytes_in_last_block;

	/*
	 * First and last write filters in the pipeline.
	 */
	struct archive_write_filter *filter_first;
	struct archive_write_filter *filter_last;

	/*
	 * Pointers to format-specific functions for writing.  They're
	 * initialized by archive_write_set_format_XXX() calls.
	 */
	void	 *format_data;
	const char *format_name;
	int	(*format_init)(struct archive_write *);
	int	(*format_options)(struct archive_write *,
		    const char *key, const char *value);
	int	(*format_finish_entry)(struct archive_write *);
	int 	(*format_write_header)(struct archive_write *,
		    struct archive_entry *);
	ssize_t	(*format_write_data)(struct archive_write *,
		    const void *buff, size_t);
	int	(*format_close)(struct archive_write *);
	int	(*format_free)(struct archive_write *);


	/*
	 * Encryption passphrase.
	 */
	char		*passphrase;
	archive_passphrase_callback *passphrase_callback;
	void		*passphrase_client_data;
};

/*
 * Utility function to format a USTAR header into a buffer.  If
 * "strict" is set, this tries to create the absolutely most portable
 * version of a ustar header.  If "strict" is set to 0, then it will
 * relax certain requirements.
 *
 * Generally, format-specific declarations don't belong in this
 * header; this is a rare example of a function that is shared by
 * two very similar formats (ustar and pax).
 */
int
__archive_write_format_header_ustar(struct archive_write *, char buff[512],
    struct archive_entry *, int tartype, int strict,
    struct archive_string_conv *);

struct archive_write_program_data;
struct archive_write_program_data * __archive_write_program_allocate(const char *program_name);
int	__archive_write_program_free(struct archive_write_program_data *);
int	__archive_write_program_open(struct archive_write_filter *,
	    struct archive_write_program_data *, const char *);
int	__archive_write_program_close(struct archive_write_filter *,
	    struct archive_write_program_data *);
int	__archive_write_program_write(struct archive_write_filter *,
	    struct archive_write_program_data *, const void *, size_t);

/*
 * Get a encryption passphrase.
 */
const char * __archive_write_get_passphrase(struct archive_write *a);
#endif