af9413b539
What it is:
A library for reading and writing various streaming archive
formats, especially tar and cpio. Being a library, it should
be easy to incorporate into pkg_* tools, sysinstall, and any
other place that needs to read or write such archives.
Features:
* Full automatic detection of both compression and archive format.
* Extensible internal architecture to make it easy to add new formats.
* Support for "pax interchange format," a new POSIX-standard tar format
that eliminates essentially all of the restrictions of historic formats.
* BSD license
Thanks to: jkh for pushing me to start this work, gordon for
encouraging me to commit it, bde for answering endless style
questions, and many others for feedback and encouragement.
Status: Pretty good overall, though there are still a few rough edges and
the library could always use more testing. Feedback eagerly solicited.
112 lines
4.8 KiB
C
112 lines
4.8 KiB
C
/*-
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* Copyright (c) 2003-2004 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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* in this position and unchanged.
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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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* $FreeBSD$
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*/
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#ifndef ARCHIVE_ENTRY_H_INCLUDED
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#define ARCHIVE_ENTRY_H_INCLUDED
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#include <sys/stat.h>
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#include <sys/types.h>
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/*
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* Description of an archive entry.
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*
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* Basically, a "struct stat" with a few text fields added in.
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*
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* TODO: Add "comment", "charset", and possibly other entries that are
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* supported by "pax interchange" format. However, GNU, ustar, cpio,
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* and other variants don't support these features, so they're not an
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* excruciatingly high priority right now.
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*
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* TODO: "pax interchange" format allows essentially arbitrary
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* key/value attributes to be attached to any entry. Supporting
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* such extensions may make this library useful for special
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* applications (e.g., a package manager could attach special
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* package-management attributes to each entry).
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*
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* TODO: Design a good API for handling sparse files.
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*/
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struct archive_entry;
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/*
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* Basic object manipulation
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*/
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struct archive_entry *archive_entry_clear(struct archive_entry *);
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/* The 'clone' function does a deep copy; all of the strings are copied too. */
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struct archive_entry *archive_entry_clone(struct archive_entry *);
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/* The 'dup' function does a shallow copy; referenced strings aren't copied. */
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struct archive_entry *archive_entry_dup(struct archive_entry *);
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void archive_entry_free(struct archive_entry *);
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struct archive_entry *archive_entry_new(void);
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/*
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* Retrieve fields from an archive_entry.
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*/
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const char *archive_entry_acl(struct archive_entry *);
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const char *archive_entry_acl_default(struct archive_entry *);
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dev_t archive_entry_devmajor(struct archive_entry *);
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dev_t archive_entry_devminor(struct archive_entry *);
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const char *archive_entry_fflags(struct archive_entry *);
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const char *archive_entry_gname(struct archive_entry *);
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const char *archive_entry_hardlink(struct archive_entry *);
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mode_t archive_entry_mode(struct archive_entry *);
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const char *archive_entry_pathname(struct archive_entry *);
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int64_t archive_entry_size(struct archive_entry *);
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const struct stat *archive_entry_stat(struct archive_entry *);
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const char *archive_entry_symlink(struct archive_entry *);
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int archive_entry_tartype(struct archive_entry *);
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const char *archive_entry_uname(struct archive_entry *);
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/*
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* Set fields in an archive_entry.
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*
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* Note that string 'set' functions do not copy the string, only the pointer.
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* In contrast, 'copy_stat' does copy the full structure.
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*/
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void archive_entry_copy_stat(struct archive_entry *, const struct stat *);
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void archive_entry_set_acl(struct archive_entry *, const char *);
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void archive_entry_set_acl_default(struct archive_entry *, const char *);
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void archive_entry_set_fflags(struct archive_entry *, const char *);
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void archive_entry_set_devmajor(struct archive_entry *, dev_t);
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void archive_entry_set_devminor(struct archive_entry *, dev_t);
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void archive_entry_set_gid(struct archive_entry *, gid_t);
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void archive_entry_set_gname(struct archive_entry *, const char *);
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void archive_entry_set_hardlink(struct archive_entry *, const char *);
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void archive_entry_set_mode(struct archive_entry *, mode_t);
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void archive_entry_set_pathname(struct archive_entry *, const char *);
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void archive_entry_set_size(struct archive_entry *, int64_t);
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void archive_entry_set_symlink(struct archive_entry *, const char *);
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void archive_entry_set_tartype(struct archive_entry *, char);
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void archive_entry_set_uid(struct archive_entry *, uid_t);
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void archive_entry_set_uname(struct archive_entry *, const char *);
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#endif /* !ARCHIVE_ENTRY_H_INCLUDED */
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