archive_entry(3) BSD Library Functions Manual archive_entry(3)
NAME
archive_entry_clear, archive_entry_clone, archive_entry_free,
archive_entry_new -- functions for managing archive entry descriptions
LIBRARY
Streaming Archive Library (libarchive, -larchive)
SYNOPSIS
#include <archive_entry.h>
struct archive_entry *
archive_entry_clear(struct archive_entry *);
struct archive_entry *
archive_entry_clone(struct archive_entry *);
void
archive_entry_free(struct archive_entry *);
struct archive_entry *
archive_entry_new(void);
DESCRIPTION
These functions create and manipulate data objects that represent entries
within an archive. You can think of a struct archive_entry as a heavy-
duty version of struct stat: it includes everything from struct stat plus
associated pathname, textual group and user names, etc. These objects
are used by libarchive(3) to represent the metadata associated with a
particular entry in an archive.
Create and Destroy
There are functions to allocate, destroy, clear, and copy archive_entry
objects:
archive_entry_clear()
Erases the object, resetting all internal fields to the same
state as a newly-created object. This is provided to allow you
to quickly recycle objects without thrashing the heap.
archive_entry_clone()
A deep copy operation; all text fields are duplicated.
archive_entry_free()
Releases the struct archive_entry object.
archive_entry_new()
Allocate and return a blank struct archive_entry object.
Function groups
Due to high number of functions, the accessor functions can be found in
man pages grouped by the purpose.
archive_entry_acl(3) Access Control List manipulation
archive_entry_paths(3) Path name manipulation
archive_entry_perms(3) User, group and mode manipulation
archive_entry_stat(3) Functions not in the other groups and copying
to/from struct stat.
archive_entry_time(3) Time field manipulation
Most of the functions set or read entries in an object. Such functions
have one of the following forms:
archive_entry_set_XXXX()
Stores the provided data in the object. In particular, for
strings, the pointer is stored, not the referenced string.
archive_entry_copy_XXXX()
As above, except that the referenced data is copied into the
object.
archive_entry_XXXX()
Returns the specified data. In the case of strings, a const-
qualified pointer to the string is returned.
String data can be set or accessed as wide character strings or normal
char strings. The functions that use wide character strings are suffixed
with _w. Note that these are different representations of the same data:
For example, if you store a narrow string and read the corresponding wide
string, the object will transparently convert formats using the current
locale. Similarly, if you store a wide string and then store a narrow
string for the same data, the previously-set wide string will be dis-
carded in favor of the new data.
SEE ALSO
archive_entry_acl(3), archive_entry_paths(3), archive_entry_perms(3),
archive_entry_time(3), libarchive(3)
HISTORY
The libarchive library first appeared in FreeBSD 5.3.
AUTHORS
The libarchive library was written by Tim Kientzle <kientzle@acm.org>.
BSD February 2, 2012 BSD
libarchive 3.4.1 - Generated Wed Jan 8 07:47:13 CST 2020