ARCHIVE_READ_EXTRACT
Section: C Library Functions (3)
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BSD mandoc
NAME
archive_read_extract
archive_read_extract2
archive_read_extract_set_progress_callback
- functions for reading streaming archives
LIBRARY
Streaming Archive Library (libarchive, -larchive)
SYNOPSIS
In archive.h
Ft int
Fo archive_read_extract
Fa struct archive *
Fa struct archive_entry *
Fa int flags
Fc Ft int
Fo archive_read_extract2
Fa struct archive *src
Fa struct archive_entry *
Fa struct archive *dest
Fc Ft void
Fo archive_read_extract_set_progress_callback
Fa struct archive *
Fa void (*func)(void *)
Fa void *user_data
Fc
DESCRIPTION
- Fn archive_read_extract , Fn archive_read_extract_set_skip_file
-
A convenience function that wraps the corresponding
archive_write_disk3
interfaces.
The first call to
Fn archive_read_extract
creates a restore object using
archive_write_disk_new3
and
archive_write_disk_set_standard_lookup3,
then transparently invokes
archive_write_disk_set_options3,
archive_write_header3,
archive_write_data3,
and
archive_write_finish_entry3
to create the entry on disk and copy data into it.
The
flags
argument is passed unmodified to
archive_write_disk_set_options3.
- Fn archive_read_extract2
-
This is another version of
Fn archive_read_extract
that allows you to provide your own restore object.
In particular, this allows you to override the standard lookup functions
using
archive_write_disk_set_group_lookup3,
and
archive_write_disk_set_user_lookup3.
Note that
Fn archive_read_extract2
does not accept a
flags
argument; you should use
Fn archive_write_disk_set_options
to set the restore options yourself.
- Fn archive_read_extract_set_progress_callback
-
Sets a pointer to a user-defined callback that can be used
for updating progress displays during extraction.
The progress function will be invoked during the extraction of large
regular files.
The progress function will be invoked with the pointer provided to this call.
Generally, the data pointed to should include a reference to the archive
object and the archive_entry object so that various statistics
can be retrieved for the progress display.
RETURN VALUES
Most functions return zero on success, non-zero on error.
The possible return codes include:
ARCHIVE_OK
(the operation succeeded),
ARCHIVE_WARN
(the operation succeeded but a non-critical error was encountered),
ARCHIVE_EOF
(end-of-archive was encountered),
ARCHIVE_RETRY
(the operation failed but can be retried),
and
ARCHIVE_FATAL
(there was a fatal error; the archive should be closed immediately).
ERRORS
Detailed error codes and textual descriptions are available from the
Fn archive_errno
and
Fn archive_error_string
functions.
SEE ALSO
tar(1),
libarchive(3),
archive_read3,
archive_read_data3,
archive_read_filter3,
archive_read_format3,
archive_read_open3,
archive_read_set_options3,
archive_util3,
tar(5)
Index
- NAME
-
- LIBRARY
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUES
-
- ERRORS
-
- SEE ALSO
-