archive_read_extract - archive_read_extract, archive_read_extract2, functions for reading streaming archives
#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(3archive) 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 #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); DESCRIPTION archive_read_extract(), archive_read_extract_set_skip_file() A convenience function that wraps the corresponding ar- chive_write_disk(3) interfaces. The first call to archive_read_extract() creates a restore object using ar- chive_write_disk_new(3) and archive_write_disk_set_stan- dard_lookup(3), then transparently invokes ar- chive_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 ar- chive_write_disk_set_options(3). archive_read_extract2() This is another version of archive_read_extract() that allows you to provide your own restore object. In particu- lar, this allows you to override the standard lookup func- tions using archive_write_disk_set_group_lookup(3), and ar- chive_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() 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 statis- tics 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), AR- CHIVE_WARN (the operation succeeded but a non-critical error was encountered), ARCHIVE_EOF (end-of-archive was encountered), AR- CHIVE_RETRY (the operation failed but can be retried), and AR- CHIVE_FATAL (there was a fatal error; the archive should be closed immediately). ERRORS Detailed error codes and textual descriptions are available from the archive_errno() and archive_error_string() functions. ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+--------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+--------------------+ |Availability | library/libarchive | +---------------+--------------------+ |Stability | Uncommitted | +---------------+--------------------+ SEE ALSO tar(1), archive_read(3), archive_read_data(3), archive_read_filter(3), archive_read_format(3), archive_read_open(3), ar- chive_read_set_options(3), archive_util(3), libarchive(3) NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://github.com/libarchive/libarchive/releases/down- load/v3.6.1/libarchive-3.6.1.tar.gz. Further information about this software can be found on the open source community website at http://www.libarchive.org/. February 2, 2012 ARCHIVE_READ_EXTRACT(3archive)