]> CyberLeo.Net >> Repos - FreeBSD/stable/10.git/blob - contrib/libarchive/libarchive/archive_write_private.h
MFC r299529,r299540,r299576,r299896:
[FreeBSD/stable/10.git] / contrib / libarchive / libarchive / archive_write_private.h
1 /*-
2  * Copyright (c) 2003-2007 Tim Kientzle
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17  * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  *
25  * $FreeBSD$
26  */
27
28 #ifndef __LIBARCHIVE_BUILD
29 #ifndef __LIBARCHIVE_TEST
30 #error This header is only to be used internally to libarchive.
31 #endif
32 #endif
33
34 #ifndef ARCHIVE_WRITE_PRIVATE_H_INCLUDED
35 #define ARCHIVE_WRITE_PRIVATE_H_INCLUDED
36
37 #include "archive.h"
38 #include "archive_string.h"
39 #include "archive_private.h"
40
41 struct archive_write;
42
43 struct archive_write_filter {
44         int64_t bytes_written;
45         struct archive *archive; /* Associated archive. */
46         struct archive_write_filter *next_filter; /* Who I write to. */
47         int     (*options)(struct archive_write_filter *,
48             const char *key, const char *value);
49         int     (*open)(struct archive_write_filter *);
50         int     (*write)(struct archive_write_filter *, const void *, size_t);
51         int     (*close)(struct archive_write_filter *);
52         int     (*free)(struct archive_write_filter *);
53         void     *data;
54         const char *name;
55         int       code;
56         int       bytes_per_block;
57         int       bytes_in_last_block;
58 };
59
60 #if ARCHIVE_VERSION < 4000000
61 void __archive_write_filters_free(struct archive *);
62 #endif
63
64 struct archive_write_filter *__archive_write_allocate_filter(struct archive *);
65
66 int __archive_write_output(struct archive_write *, const void *, size_t);
67 int __archive_write_nulls(struct archive_write *, size_t);
68 int __archive_write_filter(struct archive_write_filter *, const void *, size_t);
69 int __archive_write_open_filter(struct archive_write_filter *);
70 int __archive_write_close_filter(struct archive_write_filter *);
71
72 struct archive_write {
73         struct archive  archive;
74
75         /* Dev/ino of the archive being written. */
76         int               skip_file_set;
77         int64_t           skip_file_dev;
78         int64_t           skip_file_ino;
79
80         /* Utility:  Pointer to a block of nulls. */
81         const unsigned char     *nulls;
82         size_t                   null_length;
83
84         /* Callbacks to open/read/write/close archive stream. */
85         archive_open_callback   *client_opener;
86         archive_write_callback  *client_writer;
87         archive_close_callback  *client_closer;
88         void                    *client_data;
89
90         /*
91          * Blocking information.  Note that bytes_in_last_block is
92          * misleadingly named; I should find a better name.  These
93          * control the final output from all compressors, including
94          * compression_none.
95          */
96         int               bytes_per_block;
97         int               bytes_in_last_block;
98
99         /*
100          * First and last write filters in the pipeline.
101          */
102         struct archive_write_filter *filter_first;
103         struct archive_write_filter *filter_last;
104
105         /*
106          * Pointers to format-specific functions for writing.  They're
107          * initialized by archive_write_set_format_XXX() calls.
108          */
109         void     *format_data;
110         const char *format_name;
111         int     (*format_init)(struct archive_write *);
112         int     (*format_options)(struct archive_write *,
113                     const char *key, const char *value);
114         int     (*format_finish_entry)(struct archive_write *);
115         int     (*format_write_header)(struct archive_write *,
116                     struct archive_entry *);
117         ssize_t (*format_write_data)(struct archive_write *,
118                     const void *buff, size_t);
119         int     (*format_close)(struct archive_write *);
120         int     (*format_free)(struct archive_write *);
121
122
123         /*
124          * Encryption passphrase.
125          */
126         char            *passphrase;
127         archive_passphrase_callback *passphrase_callback;
128         void            *passphrase_client_data;
129 };
130
131 /*
132  * Utility function to format a USTAR header into a buffer.  If
133  * "strict" is set, this tries to create the absolutely most portable
134  * version of a ustar header.  If "strict" is set to 0, then it will
135  * relax certain requirements.
136  *
137  * Generally, format-specific declarations don't belong in this
138  * header; this is a rare example of a function that is shared by
139  * two very similar formats (ustar and pax).
140  */
141 int
142 __archive_write_format_header_ustar(struct archive_write *, char buff[512],
143     struct archive_entry *, int tartype, int strict,
144     struct archive_string_conv *);
145
146 struct archive_write_program_data;
147 struct archive_write_program_data * __archive_write_program_allocate(const char *program_name);
148 int     __archive_write_program_free(struct archive_write_program_data *);
149 int     __archive_write_program_open(struct archive_write_filter *,
150             struct archive_write_program_data *, const char *);
151 int     __archive_write_program_close(struct archive_write_filter *,
152             struct archive_write_program_data *);
153 int     __archive_write_program_write(struct archive_write_filter *,
154             struct archive_write_program_data *, const void *, size_t);
155
156 /*
157  * Get a encryption passphrase.
158  */
159 const char * __archive_write_get_passphrase(struct archive_write *a);
160 #endif