archive_entry(3) - NetBSD Manual Pages

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ARCHIVE_ENTRY(3)        NetBSD 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>.

NetBSD 10.0_STABLE             February 2, 2012             NetBSD 10.0_STABLE