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archive_entry(3)	 BSD Library Functions Manual	      archive_entry(3)

NAME
     archive_entry_acl_add_entry, archive_entry_acl_add_entry_w,
     archive_entry_acl_clear, archive_entry_acl_count, archive_entry_acl_next,
     archive_entry_acl_next_w, archive_entry_acl_reset,
     archive_entry_acl_text_w, archive_entry_atime, archive_entry_atime_nsec,
     archive_entry_clear, archive_entry_clone, archive_entry_copy_fflags_text,
     archive_entry_copy_fflags_text_w, archive_entry_copy_gname,
     archive_entry_copy_gname_w, archive_entry_copy_hardlink,
     archive_entry_copy_hardlink_w, archive_entry_copy_link,
     archive_entry_copy_link_w, archive_entry_copy_pathname_w,
     archive_entry_copy_sourcepath, archive_entry_copy_stat,
     archive_entry_copy_symlink, archive_entry_copy_symlink_w,
     archive_entry_copy_uname, archive_entry_copy_uname_w, archive_entry_dev,
     archive_entry_devmajor, archive_entry_devminor, archive_entry_filetype,
     archive_entry_fflags, archive_entry_fflags_text, archive_entry_free,
     archive_entry_gid, archive_entry_gname, archive_entry_hardlink,
     archive_entry_ino, archive_entry_mode, archive_entry_mtime,
     archive_entry_mtime_nsec, archive_entry_nlink, archive_entry_new,
     archive_entry_pathname, archive_entry_pathname_w, archive_entry_rdev,
     archive_entry_rdevmajor, archive_entry_rdevminor,
     archive_entry_set_atime, archive_entry_set_ctime, archive_entry_set_dev,
     archive_entry_set_devmajor, archive_entry_set_devminor,
     archive_entry_set_filetype, archive_entry_set_fflags,
     archive_entry_set_gid, archive_entry_set_gname,
     archive_entry_set_hardlink, archive_entry_set_link,
     archive_entry_set_mode, archive_entry_set_mtime,
     archive_entry_set_pathname, archive_entry_set_rdevmajor,
     archive_entry_set_rdevminor, archive_entry_set_size,
     archive_entry_set_symlink, archive_entry_set_uid,
     archive_entry_set_uname, archive_entry_size, archive_entry_sourcepath,
     archive_entry_stat, archive_entry_symlink, archive_entry_uid,
     archive_entry_uname — functions for manipulating archive entry descrip‐
     tions

SYNOPSIS
     #include <archive_entry.h>

     void
     archive_entry_acl_add_entry(struct archive_entry *, int type,
	 int permset, int tag, int qual, const char *name);

     void
     archive_entry_acl_add_entry_w(struct archive_entry *, int type,
	 int permset, int tag, int qual, const wchar_t *name);

     void
     archive_entry_acl_clear(struct archive_entry *);

     int
     archive_entry_acl_count(struct archive_entry *, int type);

     int
     archive_entry_acl_next(struct archive_entry *, int want_type, int *type,
	 int *permset, int *tag, int *qual, const char **name);

     int
     archive_entry_acl_next_w(struct archive_entry *, int want_type,
	 int *type, int *permset, int *tag, int *qual, const wchar_t **name);

     int
     archive_entry_acl_reset(struct archive_entry *, int want_type);

     const wchar_t *
     archive_entry_acl_text_w(struct archive_entry *, int flags);

     time_t
     archive_entry_atime(struct archive_entry *);

     long
     archive_entry_atime_nsec(struct archive_entry *);

     struct archive_entry *
     archive_entry_clear(struct archive_entry *);

     struct archive_entry *
     archive_entry_clone(struct archive_entry *);

     const char * *
     archive_entry_copy_fflags_text_w(struct archive_entry *, const char *);

     const wchar_t *
     archive_entry_copy_fflags_text_w(struct archive_entry *,
	 const wchar_t *);

     void
     archive_entry_copy_gname(struct archive_entry *, const char *);

     void
     archive_entry_copy_gname_w(struct archive_entry *, const wchar_t *);

     void
     archive_entry_copy_hardlink(struct archive_entry *, const char *);

     void
     archive_entry_copy_hardlink_w(struct archive_entry *, const wchar_t *);

     void
     archive_entry_copy_sourcepath(struct archive_entry *, const char *);

     void
     archive_entry_copy_pathname_w(struct archive_entry *, const wchar_t *);

     void
     archive_entry_copy_stat(struct archive_entry *, const struct stat *);

     void
     archive_entry_copy_symlink(struct archive_entry *, const char *);

     void
     archive_entry_copy_symlink_w(struct archive_entry *, const wchar_t *);

     void
     archive_entry_copy_uname(struct archive_entry *, const char *);

     void
     archive_entry_copy_uname_w(struct archive_entry *, const wchar_t *);

     dev_t
     archive_entry_dev(struct archive_entry *);

     dev_t
     archive_entry_devmajor(struct archive_entry *);

     dev_t
     archive_entry_devminor(struct archive_entry *);

     mode_t
     archive_entry_filetype(struct archive_entry *);

     void
     archive_entry_fflags(struct archive_entry *, unsigned long *set,
	 unsigned long *clear);

     const char *
     archive_entry_fflags_text(struct archive_entry *);

     void
     archive_entry_free(struct archive_entry *);

     const char *
     archive_entry_gname(struct archive_entry *);

     const char *
     archive_entry_hardlink(struct archive_entry *);

     ino_t
     archive_entry_ino(struct archive_entry *);

     mode_t
     archive_entry_mode(struct archive_entry *);

     time_t
     archive_entry_mtime(struct archive_entry *);

     long
     archive_entry_mtime_nsec(struct archive_entry *);

     unsigned int
     archive_entry_nlink(struct archive_entry *);

     struct archive_entry *
     archive_entry_new(void);

     const char *
     archive_entry_pathname(struct archive_entry *);

     const wchar_t *
     archive_entry_pathname_w(struct archive_entry *);

     dev_t
     archive_entry_rdev(struct archive_entry *);

     dev_t
     archive_entry_rdevmajor(struct archive_entry *);

     dev_t
     archive_entry_rdevminor(struct archive_entry *);

     void
     archive_entry_set_dev(struct archive_entry *, dev_t);

     void
     archive_entry_set_devmajor(struct archive_entry *, dev_t);

     void
     archive_entry_set_devminor(struct archive_entry *, dev_t);

     void
     archive_entry_set_filetype(struct archive_entry *, unsigned int);

     void
     archive_entry_set_fflags(struct archive_entry *, unsigned long set,
	 unsigned long clear);

     void
     archive_entry_set_gid(struct archive_entry *, gid_t);

     void
     archive_entry_set_gname(struct archive_entry *, const char *);

     void
     archive_entry_set_hardlink(struct archive_entry *, const char *);

     void
     archive_entry_set_ino(struct archive_entry *, unsigned long);

     void
     archive_entry_set_link(struct archive_entry *, const char *);

     void
     archive_entry_set_mode(struct archive_entry *, mode_t);

     void
     archive_entry_set_mtime(struct archive_entry *, time_t, long nanos);

     void
     archive_entry_set_nlink(struct archive_entry *, unsigned int);

     void
     archive_entry_set_pathname(struct archive_entry *, const char *);

     void
     archive_entry_set_rdev(struct archive_entry *, dev_t);

     void
     archive_entry_set_rdevmajor(struct archive_entry *, dev_t);

     void
     archive_entry_set_rdevminor(struct archive_entry *, dev_t);

     void
     archive_entry_set_size(struct archive_entry *, int64_t);

     void
     archive_entry_set_symlink(struct archive_entry *, const char *);

     void
     archive_entry_set_uid(struct archive_entry *, uid_t);

     void
     archive_entry_set_uname(struct archive_entry *, const char *);

     int64_t
     archive_entry_size(struct archive_entry *);

     const char *
     archive_entry_sourcepath(struct archive_entry *);

     const struct stat *
     archive_entry_stat(struct archive_entry *);

     const char *
     archive_entry_symlink(struct archive_entry *);

     const char *
     archive_entry_uname(struct archive_entry *);

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.

   Set and Get Functions
     Most of the functions here set or read entries in an object.  Such func‐
     tions 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.

     There are a few set/get functions that merit additional description:
     archive_entry_set_link()
	     This function sets the symlink field if it is already set.	 Oth‐
	     erwise, it sets the hardlink field.

   File Flags
     File flags are transparently converted between a bitmap representation
     and a textual format.  For example, if you set the bitmap and ask for
     text, the library will build a canonical text format.  However, if you
     set a text format and request a text format, you will get back the same
     text, even if it is ill-formed.  If you need to canonicalize a textual
     flags string, you should first set the text form, then request the bitmap
     form, then use that to set the bitmap form.  Setting the bitmap format
     will clear the internal text representation and force it to be recon‐
     structed when you next request the text form.

     The bitmap format consists of two integers, one containing bits that
     should be set, the other specifying bits that should be cleared.  Bits
     not mentioned in either bitmap will be ignored.  Usually, the bitmap of
     bits to be cleared will be set to zero.  In unusual circumstances, you
     can force a fully-specified set of file flags by setting the bitmap of
     flags to clear to the complement of the bitmap of flags to set.  (This
     differs from fflagstostr(3), which only includes names for set bits.)
     Converting a bitmap to a textual string is a platform-specific operation;
     bits that are not meaningful on the current platform will be ignored.

     The canonical text format is a comma-separated list of flag names.	 The
     archive_entry_copy_fflags_text() and archive_entry_copy_fflags_text_w()
     functions parse the provided text and sets the internal bitmap values.
     This is a platform-specific operation; names that are not meaningful on
     the current platform will be ignored.  The function returns a pointer to
     the start of the first name that was not recognized, or NULL if every
     name was recognized.  Note that every name--including names that follow
     an unrecognized name--will be evaluated, and the bitmaps will be set to
     reflect every name that is recognized.  (In particular, this differs from
     strtofflags(3), which stops parsing at the first unrecognized name.)

   ACL Handling
     XXX This needs serious help.  XXX

     An “Access Control List” (ACL) is a list of permissions that grant access
     to particular users or groups beyond what would normally be provided by
     standard POSIX mode bits.	The ACL handling here addresses some deficien‐
     cies in the POSIX.1e draft 17 ACL specification.  In particular, POSIX.1e
     draft 17 specifies several different formats, but none of those formats
     include both textual user/group names and numeric UIDs/GIDs.

     XXX explain ACL stuff XXX

SEE ALSO
     archive(3)

HISTORY
     The libarchive library first appeared in FreeBSD 5.3.

AUTHORS
     The libarchive library was written by Tim Kientzle ⟨kientzle@acm.org⟩.

BSD				 May 12, 2008				   BSD
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