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Diffstat (limited to 'lib/libarchive/archive_read_private.h')
| -rw-r--r-- | lib/libarchive/archive_read_private.h | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/lib/libarchive/archive_read_private.h b/lib/libarchive/archive_read_private.h deleted file mode 100644 index ed8a889..0000000 --- a/lib/libarchive/archive_read_private.h +++ /dev/null @@ -1,199 +0,0 @@ -/*- - * 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. - * - * $FreeBSD$ - */ - -#ifndef __LIBARCHIVE_BUILD -#error This header is only to be used internally to libarchive. -#endif - -#ifndef ARCHIVE_READ_PRIVATE_H_INCLUDED -#define ARCHIVE_READ_PRIVATE_H_INCLUDED - -#include "archive.h" -#include "archive_string.h" -#include "archive_private.h" - -struct archive_read; -struct archive_read_filter_bidder; -struct archive_read_filter; - -/* - * How bidding works for filters: - * * The bid manager reads the first block from the current source. - * * It shows that block to each registered bidder. - * * The bid manager creates a new filter structure for the winning - * bidder and gives the winning bidder a chance to initialize it. - * * The new filter becomes the top filter in the archive_read structure - * and we repeat the process. - * This ends only when no bidder provides a non-zero bid. - */ -struct archive_read_filter_bidder { - /* Configuration data for the bidder. */ - void *data; - /* Taste the upstream filter to see if we handle this. */ - int (*bid)(struct archive_read_filter_bidder *, - struct archive_read_filter *); - /* Initialize a newly-created filter. */ - int (*init)(struct archive_read_filter *); - /* Set an option for the filter bidder. */ - int (*options)(struct archive_read_filter_bidder *, - const char *key, const char *value); - /* Release the bidder's configuration data. */ - int (*free)(struct archive_read_filter_bidder *); -}; - -/* - * This structure is allocated within the archive_read core - * and initialized by archive_read and the init() method of the - * corresponding bidder above. - */ -struct archive_read_filter { - /* Essentially all filters will need these values, so - * just declare them here. */ - struct archive_read_filter_bidder *bidder; /* My bidder. */ - struct archive_read_filter *upstream; /* Who I read from. */ - struct archive_read *archive; /* Associated archive. */ - /* Return next block. */ - ssize_t (*read)(struct archive_read_filter *, const void **); - /* Skip forward this many bytes. */ - int64_t (*skip)(struct archive_read_filter *self, int64_t request); - /* Close (just this filter) and free(self). */ - int (*close)(struct archive_read_filter *self); - /* My private data. */ - void *data; - - const char *name; - int code; - - /* Used by reblocking logic. */ - char *buffer; - size_t buffer_size; - char *next; /* Current read location. */ - size_t avail; /* Bytes in my buffer. */ - const void *client_buff; /* Client buffer information. */ - size_t client_total; - const char *client_next; - size_t client_avail; - int64_t position; - char end_of_file; - char fatal; -}; - -/* - * The client looks a lot like a filter, so we just wrap it here. - * - * TODO: Make archive_read_filter and archive_read_client identical so - * that users of the library can easily register their own - * transformation filters. This will probably break the API/ABI and - * so should be deferred at least until libarchive 3.0. - */ -struct archive_read_client { - archive_read_callback *reader; - archive_skip_callback *skipper; - archive_close_callback *closer; -}; - -struct archive_read { - struct archive archive; - - struct archive_entry *entry; - - /* Dev/ino of the archive being read/written. */ - dev_t skip_file_dev; - ino_t skip_file_ino; - - /* - * Used by archive_read_data() to track blocks and copy - * data to client buffers, filling gaps with zero bytes. - */ - const char *read_data_block; - off_t read_data_offset; - off_t read_data_output_offset; - size_t read_data_remaining; - - /* Callbacks to open/read/write/close client archive stream. */ - struct archive_read_client client; - - /* Registered filter bidders. */ - struct archive_read_filter_bidder bidders[8]; - - /* Last filter in chain */ - struct archive_read_filter *filter; - - /* File offset of beginning of most recently-read header. */ - off_t header_position; - - /* - * Format detection is mostly the same as compression - * detection, with one significant difference: The bidders - * use the read_ahead calls above to examine the stream rather - * than having the supervisor hand them a block of data to - * examine. - */ - - struct archive_format_descriptor { - void *data; - const char *name; - int (*bid)(struct archive_read *); - int (*options)(struct archive_read *, const char *key, - const char *value); - int (*read_header)(struct archive_read *, struct archive_entry *); - int (*read_data)(struct archive_read *, const void **, size_t *, off_t *); - int (*read_data_skip)(struct archive_read *); - int (*cleanup)(struct archive_read *); - } formats[9]; - struct archive_format_descriptor *format; /* Active format. */ - - /* - * Various information needed by archive_extract. - */ - struct extract *extract; - int (*cleanup_archive_extract)(struct archive_read *); -}; - -int __archive_read_register_format(struct archive_read *a, - void *format_data, - const char *name, - int (*bid)(struct archive_read *), - int (*options)(struct archive_read *, const char *, const char *), - int (*read_header)(struct archive_read *, struct archive_entry *), - int (*read_data)(struct archive_read *, const void **, size_t *, off_t *), - int (*read_data_skip)(struct archive_read *), - int (*cleanup)(struct archive_read *)); - -struct archive_read_filter_bidder - *__archive_read_get_bidder(struct archive_read *a); - -const void *__archive_read_ahead(struct archive_read *, size_t, ssize_t *); -const void *__archive_read_filter_ahead(struct archive_read_filter *, - size_t, ssize_t *); -ssize_t __archive_read_consume(struct archive_read *, size_t); -ssize_t __archive_read_filter_consume(struct archive_read_filter *, size_t); -int64_t __archive_read_skip(struct archive_read *, int64_t); -int64_t __archive_read_skip_lenient(struct archive_read *, int64_t); -int64_t __archive_read_filter_skip(struct archive_read_filter *, int64_t); -int __archive_read_program(struct archive_read_filter *, const char *); -#endif |
