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144 lines
3.5 KiB
Plaintext
144 lines
3.5 KiB
Plaintext
.TH ARCHIVE_ENTRY 3 "February 2, 2012" ""
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.SH NAME
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.ad l
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\fB\%archive_entry_clear\fP,
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\fB\%archive_entry_clone\fP,
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\fB\%archive_entry_free\fP,
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\fB\%archive_entry_new\fP
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\- functions for managing archive entry descriptions
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.SH LIBRARY
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.ad l
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Streaming Archive Library (libarchive, -larchive)
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.SH SYNOPSIS
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.ad l
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\fB#include <archive_entry.h>\fP
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.br
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\fIstruct archive_entry *\fP
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.br
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\fB\%archive_entry_clear\fP(\fI\%struct\ archive_entry\ *\fP);
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.br
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\fIstruct archive_entry *\fP
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.br
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\fB\%archive_entry_clone\fP(\fI\%struct\ archive_entry\ *\fP);
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.br
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\fIvoid\fP
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.br
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\fB\%archive_entry_free\fP(\fI\%struct\ archive_entry\ *\fP);
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.br
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\fIstruct archive_entry *\fP
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.br
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\fB\%archive_entry_new\fP(\fI\%void\fP);
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.SH DESCRIPTION
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.ad l
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These functions create and manipulate data objects that
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represent entries within an archive.
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You can think of a
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Tn struct archive_entry
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as a heavy-duty version of
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Tn struct stat:
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it includes everything from
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Tn struct stat
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plus associated pathname, textual group and user names, etc.
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These objects are used by
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\fBlibarchive\fP(3)
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to represent the metadata associated with a particular
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entry in an archive.
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.SS Create and Destroy
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There are functions to allocate, destroy, clear, and copy
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\fIarchive_entry\fP
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objects:
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.RS 5
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.TP
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\fB\%archive_entry_clear\fP()
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Erases the object, resetting all internal fields to the
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same state as a newly-created object.
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This is provided to allow you to quickly recycle objects
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without thrashing the heap.
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.TP
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\fB\%archive_entry_clone\fP()
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A deep copy operation; all text fields are duplicated.
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.TP
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\fB\%archive_entry_free\fP()
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Releases the
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Tn struct archive_entry
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object.
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.TP
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\fB\%archive_entry_new\fP()
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Allocate and return a blank
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Tn struct archive_entry
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object.
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.RE
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.SS Function groups
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Due to high number of functions, the accessor functions can be found in
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man pages grouped by the purpose.
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.RS 5
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.TP
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\fBarchive_entry_acl\fP(3)
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Access Control List manipulation
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.TP
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\fBarchive_entry_paths\fP(3)
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Path name manipulation
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.TP
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\fBarchive_entry_perms\fP(3)
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User, group and mode manipulation
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.TP
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\fBarchive_entry_stat\fP(3)
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Functions not in the other groups and copying to/from
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Vt struct stat.
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.TP
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\fBarchive_entry_time\fP(3)
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Time field manipulation
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.RE
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.PP
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Most of the functions set or read entries in an object.
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Such functions have one of the following forms:
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.RS 5
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.TP
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\fB\%archive_entry_set_XXXX\fP()
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Stores the provided data in the object.
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In particular, for strings, the pointer is stored,
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not the referenced string.
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.TP
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\fB\%archive_entry_copy_XXXX\fP()
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As above, except that the referenced data is copied
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into the object.
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.TP
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\fB\%archive_entry_XXXX\fP()
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Returns the specified data.
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In the case of strings, a const-qualified pointer to
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the string is returned.
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.RE
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String data can be set or accessed as wide character strings
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or normal
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\fIchar\fP
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strings.
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The functions that use wide character strings are suffixed with
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\fB_w\fP.
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Note that these are different representations of the same data:
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For example, if you store a narrow string and read the corresponding
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wide string, the object will transparently convert formats
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using the current locale.
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Similarly, if you store a wide string and then store a
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narrow string for the same data, the previously-set wide string will
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be discarded in favor of the new data.
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.SH SEE ALSO
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.ad l
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\fBarchive_entry_acl\fP(3),
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\fBarchive_entry_paths\fP(3),
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\fBarchive_entry_perms\fP(3),
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\fBarchive_entry_time\fP(3),
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\fBlibarchive\fP(3)
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.SH HISTORY
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.ad l
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The
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\fB\%libarchive\fP
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library first appeared in
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FreeBSD 5.3.
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.SH AUTHORS
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.ad l
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-nosplit
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The
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\fB\%libarchive\fP
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library was written by
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Tim Kientzle \%<kientzle@acm.org.>
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