ARCHIVE_READ_EXTRACT(3) | Library Functions Manual | ARCHIVE_READ_EXTRACT(3) |
archive_read_extract
,
archive_read_extract2
,
archive_read_extract_set_progress_callback
—
functions for reading streaming archives
Streaming Archive Library (libarchive, -larchive)
#include
<archive.h>
int
archive_read_extract
(struct archive
*, struct archive_entry *, int
flags);
int
archive_read_extract2
(struct archive
*src, struct archive_entry *,
struct archive *dest);
void
archive_read_extract_set_progress_callback
(struct
archive *, void (*func)(void *),
void *user_data);
archive_read_extract
(),
archive_read_extract_set_skip_file
()archive_read_extract
() creates a restore object
using
archive_write_disk_new(3)
and
archive_write_disk_set_standard_lookup(3),
then transparently invokes
archive_write_disk_set_options(3),
archive_write_header(3),
archive_write_data(3),
and
archive_write_finish_entry(3)
to create the entry on disk and copy data into it. The
flags argument is passed unmodified to
archive_write_disk_set_options(3).archive_read_extract2
()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_lookup(3),
and
archive_write_disk_set_user_lookup(3).
Note that archive_read_extract2
() does not accept
a flags argument; you should use
archive_write_disk_set_options
()
to set the restore options yourself.archive_read_extract_set_progress_callback
()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).
Detailed error codes and textual descriptions are available from
the archive_errno
() and
archive_error_string
() functions.
tar(1), archive_read(3), archive_read_data(3), archive_read_filter(3), archive_read_format(3), archive_read_open(3), archive_read_set_options(3), archive_util(3), libarchive(3), tar(5)
February 2, 2012 | macOS 14.6 |