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: head/lib/libarchive/archive_write_private.h 201155 2009-12-29 05:20:12Z kientzle $ 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 161