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Diffstat (limited to 'Utilities/cmlibarchive/libarchive/archive_read_support_format_all.c')
| -rw-r--r-- | Utilities/cmlibarchive/libarchive/archive_read_support_format_all.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/Utilities/cmlibarchive/libarchive/archive_read_support_format_all.c b/Utilities/cmlibarchive/libarchive/archive_read_support_format_all.c new file mode 100644 index 000000000..53fe6fa39 --- /dev/null +++ b/Utilities/cmlibarchive/libarchive/archive_read_support_format_all.c @@ -0,0 +1,87 @@ +/*- + * Copyright (c) 2003-2011 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. + */ + +#include "archive_platform.h" +__FBSDID("$FreeBSD: head/lib/libarchive/archive_read_support_format_all.c 174991 2007-12-30 04:58:22Z kientzle $"); + +#include "archive.h" +#include "archive_private.h" + +int +archive_read_support_format_all(struct archive *a) +{ + archive_check_magic(a, ARCHIVE_READ_MAGIC, + ARCHIVE_STATE_NEW, "archive_read_support_format_all"); + + /* TODO: It would be nice to compute the ordering + * here automatically so that people who enable just + * a few formats can still get the benefits. That + * may just require the format registration to include + * a "maximum read-ahead" value (anything that uses seek + * would be essentially infinite read-ahead). The core + * bid management can then sort the bidders before calling + * them. + * + * If you implement the above, please return the list below + * to alphabetic order. + */ + + /* + * These bidders are all pretty cheap; they just examine a + * small initial part of the archive. If one of these bids + * high, we can maybe avoid running any of the more expensive + * bidders below. + */ + archive_read_support_format_ar(a); + archive_read_support_format_cpio(a); + archive_read_support_format_empty(a); + archive_read_support_format_lha(a); + archive_read_support_format_mtree(a); + archive_read_support_format_tar(a); + archive_read_support_format_xar(a); + + /* + * Install expensive bidders last. By doing them last, we + * increase the chance that a high bid from someone else will + * make it unnecessary for these to do anything at all. + */ + /* These three have potentially large look-ahead. */ + archive_read_support_format_7zip(a); + archive_read_support_format_cab(a); + archive_read_support_format_rar(a); + archive_read_support_format_iso9660(a); + /* Seek is really bad, since it forces the read-ahead + * logic to discard buffered data. */ + archive_read_support_format_zip(a); + + /* Note: We always return ARCHIVE_OK here, even if some of the + * above return ARCHIVE_WARN. The intent here is to enable + * "as much as possible." Clients who need specific + * compression should enable those individually so they can + * verify the level of support. */ + /* Clear any warning messages set by the above functions. */ + archive_clear_error(a); + return (ARCHIVE_OK); +} |