NAME
archive_write_data,
archive_write_data_block
—
functions for creating archives
LIBRARY
Streaming Archive Library (libarchive, -larchive)
SYNOPSIS
#include <archive.h>
la_ssize_t
archive_write_data(
struct
archive *,
const void
*,
size_t);
la_ssize_t
archive_write_data_block(
struct
archive *,
const void
*,
size_t size,
int64_t offset);
DESCRIPTION
-
-
- archive_write_data()
- Write data corresponding to the header just written.
-
-
- archive_write_data_block()
- Write data corresponding to the header just written. This
is like archive_write_data() except that it performs a
seek on the file being written to the specified offset before writing the
data. This is useful when restoring sparse files from archive formats that
support sparse files. Returns number of bytes written or -1 on error.
(Note: This is currently not supported for archive_write handles, only for
archive_write_disk handles.
RETURN VALUES
This function returns the number of bytes actually written, or a negative error
code on error.
ERRORS
Detailed error codes and textual descriptions are available from the
archive_errno() and
archive_error_string()
functions.
BUGS
In libarchive 3.x, this function sometimes returns zero on success instead of
returning the number of bytes written. Specifically, this occurs when writing
to an
archive_write_disk handle. Clients should treat
any value less than zero as an error and consider any non-negative value as
success.
SEE ALSO
tar(1),
libarchive(3),
archive_write_finish_entry(3),
archive_write_set_options(3),
cpio(5),
mtree(5),
tar(5)