
ARCHIVE_ENTRY(3)	 BSD Library Functions Manual	      ARCHIVE_ENTRY(3)

NAME
     archive_entry_stat, archive_entry_copy_stat, archive_entry_filetype,
     archive_entry_set_filetype, archive_entry_mode, archive_entry_set_mode,
     archive_entry_size, archive_entry_size_is_set, archive_entry_set_size,
     archive_entry_unset_size, archive_entry_dev, archive_entry_set_dev,
     archive_entry_dev_is_set, archive_entry_devmajor,
     archive_entry_set_devmajor, archive_entry_devminor,
     archive_entry_set_devminor, archive_entry_ino, archive_entry_set_ino,
     archive_entry_ino_is_set, archive_entry_ino64, archive_entry_set_ino64,
     archive_entry_nlink, archive_entry_rdev, archive_entry_set_rdev,
     archive_entry_rdevmajor, archive_entry_set_rdevmajor,
     archive_entry_rdevminor, archive_entry_set_rdevminor, — accessor func‐
     tions for manipulating archive entry descriptions

SYNOPSIS
     #include <archive_entry.h>

     const struct stat *
     archive_entry_stat(struct archive_entry *a);

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

     mode_t
     archive_entry_filetype(struct archive_entry *a);

     void
     archive_entry_set_filetype(struct archive_entry *a, unsigned int type);

     mode_t
     archive_entry_mode(struct archive_entry *a);

     void
     archive_entry_set_mode(struct archive_entry *a, mode_t mode);

     int64_t
     archive_entry_size(struct archive_entry *a);

     int
     archive_entry_size_is_set(struct archive_entry *a);

     void
     archive_entry_set_size(struct archive_entry *a, int64_t size);

     void
     archive_entry_unset_size(struct archive_entry *a);

     dev_t
     archive_entry_dev(struct archive_entry *a);

     void
     archive_entry_set_dev(struct archive_entry *a, dev_t dev);

     int
     archive_entry_dev_is_set(struct archive_entry *a);

     dev_t
     archive_entry_devmajor(struct archive_entry *a);

     void
     archive_entry_set_devmajor(struct archive_entry *a, dev_t major);

     dev_t
     archive_entry_devminor(struct archive_entry *a);

     void
     archive_entry_set_devminor(struct archive_entry *a, dev_t minor);

     ino_t
     archive_entry_ino(struct archive_entry *a);

     void
     archive_entry_set_ino(struct archive_entry *a, unsigned long ino);

     int
     archive_entry_ino_is_set(struct archive_entry *a);

     int64_t
     archive_entry_ino64(struct archive_entry *a);

     void
     archive_entry_set_ino64(struct archive_entry *a, int64_t ino);

     unsigned int
     archive_entry_nlink(struct archive_entry *a);

     void
     archive_entry_set_nlink(struct archive_entry *a, unsigned int count);

     dev_t
     archive_entry_rdev(struct archive_entry *a);

     dev_t
     archive_entry_rdevmajor(struct archive_entry *a);

     dev_t
     archive_entry_rdevminor(struct archive_entry *a);

     void
     archive_entry_set_rdev(struct archive_entry *a, dev_t dev);

     void
     archive_entry_set_rdevmajor(struct archive_entry *a, dev_t major);

     void
     archive_entry_set_rdevminor(struct archive_entry *a, dev_t minor);

DESCRIPTION
   Copying to and from struct stat
     The function archive_entry_stat() converts the various fields stored in
     the archive entry to the format used by stat(2).  The return value
     remains valid until either archive_entry_clear() or archive_entry_free()
     is called.  It is not affected by calls to the set accessor functions.
     It currently sets the following values in struct stat: st_atime,
     st_ctime, st_dev, st_gid, st_ino, st_mode, st_mtime, st_nlink, st_rdev,
     st_size, st_uid.  In addition, st_birthtime and high‐precision informa‐
     tion for time‐related fields will be included on platforms that support
     it.

     The function archive_entry_copy_stat() copies fields from the platform’s
     struct stat.  Fields not provided by struct stat are unchanged.

   General accessor functions
     The functions archive_entry_filetype() and archive_entry_set_filetype()
     get respectively set the filetype.  The file type is one of the following
     constants:
	   AE_IFREG   Regular file
	   AE_IFLNK   Symbolic link
	   AE_IFSOCK  Socket
	   AE_IFCHR   Character device
	   AE_IFBLK   Block device
	   AE_IFDIR   Directory
	   AE_IFIFO   Named pipe (fifo)
     Not all file types are supported by all platforms.  The constants used by
     stat(2) may have different numeric values from the corresponding con‐
     stants above.

     The functions archive_entry_mode() and archive_entry_set_mode() get/set a
     combination of file type and permissions and provide the equivalent of
     st_mode.  Use of archive_entry_filetype() and archive_entry_perm() for
     getting and archive_entry_set_filetype() and archive_entry_set_perm() for
     setting is recommended.

     The function archive_entry_size() returns the file size, if it has been
     set, and 0 otherwise.  archive_entry_size() can be used to query that
     status.  archive_entry_set_size() and archive_entry_unset_size() set and
     unset the size, respectively.

     The number of references (hardlinks) can be obtained by calling
     archive_entry_nlinks() and set with archive_entry_set_nlinks().

   Identifying unique files
     The functions archive_entry_dev() and archive_entry_ino64() are used by
     archive_entry_linkify(3) to find hardlinks.  The pair of device and inode
     is suppossed to identify hardlinked files.

     The device major and minor number can be obtained independently using
     archive_entry_devmajor() and archive_entry_devminor().  The device can be
     set either via archive_entry_set_dev() or by the combination of major and
     minor number using archive_entry_set_devmajor() and
     archive_entry_set_devminor().

     The inode number can be obtained using archive_entry_ino().  This is a
     legacy interface that uses the platform ino_t, which may be very small.
     To set the inode number, archive_entry_set_ino64() is the preferred
     interface.

   Accessor functions for block and character devices
     Block and character devices are characterised either using a device num‐
     ber or a pair of major and minor number.  The combined device number can
     be obtained with archive_device_rdev() and set with
     archive_device_set_rdev().  The major and minor numbers are accessed by
     archive_device_rdevmajor(), archive_device_rdevminor()
     archive_device_set_rdevmajor() and archive_device_set_rdevminor().

     The process of splitting the combined device number into major and minor
     number and the reverse process of combing them differs between platforms.
     Some archive formats use the combined form, while other formats use the
     split form.

SEE ALSO
     archive(3), archive_entry_acl(3), archive_entry_perms(3),
     archive_entry_time(3), stat(2)

BSD				 May 12, 2008				   BSD
