cdf63a700c
Update libarchive to 3.2.0 New features: - new bsdcat command-line utility - LZ4 compression (in src only via external utility from ports) - Warc format support - 'Raw' format writer - Zip: Support archives >4GB, entries >4GB - Zip: Support encrypting and decrypting entries - Zip: Support experimental streaming extension - Identify encrypted entries in several formats - New --clear-nochange-flags option to bsdtar tries to remove noschg and similar flags before deleting files - New --ignore-zeros option to bsdtar to handle concatenated tar archives - Use multi-threaded LZMA decompression if liblzma supports it - Expose version info for libraries used by libarchive Patched files (fixed compiler warnings): contrib/libarchive/cat/bsdcat.c (vendor PR #702) contrib/libarchive/cat/bsdcat.h (vendor PR #702) contrib/libarchive/libarchive/archive_read_support_format_mtree.c (PR #701) contrib/libarchive/libarchive_fe/err.c (vendor PR #703) MFC after: 1 month Relnotes: yes
97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
/*-
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* Copyright (c) 2003-2007 Tim Kientzle
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "archive_platform.h"
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__FBSDID("$FreeBSD$");
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#include "archive.h"
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#include "archive_entry.h"
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#include "archive_private.h"
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#include "archive_read_private.h"
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static int archive_read_format_empty_bid(struct archive_read *, int);
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static int archive_read_format_empty_read_data(struct archive_read *,
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const void **, size_t *, int64_t *);
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static int archive_read_format_empty_read_header(struct archive_read *,
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struct archive_entry *);
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int
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archive_read_support_format_empty(struct archive *_a)
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{
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struct archive_read *a = (struct archive_read *)_a;
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int r;
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archive_check_magic(_a, ARCHIVE_READ_MAGIC,
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ARCHIVE_STATE_NEW, "archive_read_support_format_empty");
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r = __archive_read_register_format(a,
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NULL,
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NULL,
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archive_read_format_empty_bid,
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NULL,
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archive_read_format_empty_read_header,
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archive_read_format_empty_read_data,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL);
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return (r);
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}
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static int
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archive_read_format_empty_bid(struct archive_read *a, int best_bid)
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{
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if (best_bid < 1 && __archive_read_ahead(a, 1, NULL) == NULL)
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return (1);
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return (-1);
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}
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static int
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archive_read_format_empty_read_header(struct archive_read *a,
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struct archive_entry *entry)
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{
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(void)a; /* UNUSED */
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(void)entry; /* UNUSED */
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a->archive.archive_format = ARCHIVE_FORMAT_EMPTY;
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a->archive.archive_format_name = "Empty file";
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return (ARCHIVE_EOF);
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}
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static int
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archive_read_format_empty_read_data(struct archive_read *a,
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const void **buff, size_t *size, int64_t *offset)
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{
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(void)a; /* UNUSED */
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(void)buff; /* UNUSED */
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(void)size; /* UNUSED */
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(void)offset; /* UNUSED */
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return (ARCHIVE_EOF);
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}
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