archive_write_private.h revision 358090
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: stable/10/contrib/libarchive/libarchive/archive_write_private.h 358090 2020-02-19 01:51:44Z mm $ 26 */ 27 28#ifndef ARCHIVE_WRITE_PRIVATE_H_INCLUDED 29#define ARCHIVE_WRITE_PRIVATE_H_INCLUDED 30 31#ifndef __LIBARCHIVE_BUILD 32#ifndef __LIBARCHIVE_TEST 33#error This header is only to be used internally to libarchive. 34#endif 35#endif 36 37#include "archive.h" 38#include "archive_string.h" 39#include "archive_private.h" 40 41#define ARCHIVE_WRITE_FILTER_STATE_NEW 1U 42#define ARCHIVE_WRITE_FILTER_STATE_OPEN 2U 43#define ARCHIVE_WRITE_FILTER_STATE_CLOSED 4U 44#define ARCHIVE_WRITE_FILTER_STATE_FATAL 0x8000U 45 46struct archive_write; 47 48struct archive_write_filter { 49 int64_t bytes_written; 50 struct archive *archive; /* Associated archive. */ 51 struct archive_write_filter *next_filter; /* Who I write to. */ 52 int (*options)(struct archive_write_filter *, 53 const char *key, const char *value); 54 int (*open)(struct archive_write_filter *); 55 int (*write)(struct archive_write_filter *, const void *, size_t); 56 int (*close)(struct archive_write_filter *); 57 int (*free)(struct archive_write_filter *); 58 void *data; 59 const char *name; 60 int code; 61 int bytes_per_block; 62 int bytes_in_last_block; 63 int state; 64}; 65 66#if ARCHIVE_VERSION < 4000000 67void __archive_write_filters_free(struct archive *); 68#endif 69 70struct archive_write_filter *__archive_write_allocate_filter(struct archive *); 71 72int __archive_write_output(struct archive_write *, const void *, size_t); 73int __archive_write_nulls(struct archive_write *, size_t); 74int __archive_write_filter(struct archive_write_filter *, const void *, size_t); 75 76struct archive_write { 77 struct archive archive; 78 79 /* Dev/ino of the archive being written. */ 80 int skip_file_set; 81 int64_t skip_file_dev; 82 int64_t skip_file_ino; 83 84 /* Utility: Pointer to a block of nulls. */ 85 const unsigned char *nulls; 86 size_t null_length; 87 88 /* Callbacks to open/read/write/close archive stream. */ 89 archive_open_callback *client_opener; 90 archive_write_callback *client_writer; 91 archive_close_callback *client_closer; 92 void *client_data; 93 94 /* 95 * Blocking information. Note that bytes_in_last_block is 96 * misleadingly named; I should find a better name. These 97 * control the final output from all compressors, including 98 * compression_none. 99 */ 100 int bytes_per_block; 101 int bytes_in_last_block; 102 103 /* 104 * First and last write filters in the pipeline. 105 */ 106 struct archive_write_filter *filter_first; 107 struct archive_write_filter *filter_last; 108 109 /* 110 * Pointers to format-specific functions for writing. They're 111 * initialized by archive_write_set_format_XXX() calls. 112 */ 113 void *format_data; 114 const char *format_name; 115 int (*format_init)(struct archive_write *); 116 int (*format_options)(struct archive_write *, 117 const char *key, const char *value); 118 int (*format_finish_entry)(struct archive_write *); 119 int (*format_write_header)(struct archive_write *, 120 struct archive_entry *); 121 ssize_t (*format_write_data)(struct archive_write *, 122 const void *buff, size_t); 123 int (*format_close)(struct archive_write *); 124 int (*format_free)(struct archive_write *); 125 126 127 /* 128 * Encryption passphrase. 129 */ 130 char *passphrase; 131 archive_passphrase_callback *passphrase_callback; 132 void *passphrase_client_data; 133}; 134 135/* 136 * Utility function to format a USTAR header into a buffer. If 137 * "strict" is set, this tries to create the absolutely most portable 138 * version of a ustar header. If "strict" is set to 0, then it will 139 * relax certain requirements. 140 * 141 * Generally, format-specific declarations don't belong in this 142 * header; this is a rare example of a function that is shared by 143 * two very similar formats (ustar and pax). 144 */ 145int 146__archive_write_format_header_ustar(struct archive_write *, char buff[512], 147 struct archive_entry *, int tartype, int strict, 148 struct archive_string_conv *); 149 150struct archive_write_program_data; 151struct archive_write_program_data * __archive_write_program_allocate(const char *program_name); 152int __archive_write_program_free(struct archive_write_program_data *); 153int __archive_write_program_open(struct archive_write_filter *, 154 struct archive_write_program_data *, const char *); 155int __archive_write_program_close(struct archive_write_filter *, 156 struct archive_write_program_data *); 157int __archive_write_program_write(struct archive_write_filter *, 158 struct archive_write_program_data *, const void *, size_t); 159 160/* 161 * Get a encryption passphrase. 162 */ 163const char * __archive_write_get_passphrase(struct archive_write *a); 164#endif 165