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ARCHIVE_READ_FORMAT(3) BSD Library Functions Manual ARCHIVE_READ_FORMAT(3) NAME archive_read_support_format_7zip, archive_read_support_format_all, archive_read_support_format_ar, archive_read_support_format_by_code, archive_read_support_format_cab, archive_read_support_format_cpio, archive_read_support_format_empty, archive_read_support_format_iso9660, archive_read_support_format_lha, archive_read_support_format_mtree, archive_read_support_format_rar, archive_read_support_format_raw, archive_read_support_format_tar, archive_read_support_format_xar, archive_read_support_format_zip -- functions for reading streaming ar- chives LIBRARY Streaming Archive Library (libarchive, -larchive) SYNOPSIS #include <archive.h> int archive_read_support_format_7zip(struct archive *); int archive_read_support_format_all(struct archive *); int archive_read_support_format_ar(struct archive *); int archive_read_support_format_by_code(struct archive *, int); int archive_read_support_format_cab(struct archive *); int archive_read_support_format_cpio(struct archive *); int archive_read_support_format_empty(struct archive *); int archive_read_support_format_iso9660(struct archive *); int archive_read_support_format_lha(struct archive *); int archive_read_support_format_mtree(struct archive *); int archive_read_support_format_rar(struct archive *); int archive_read_support_format_raw(struct archive *); int archive_read_support_format_tar(struct archive *); int archive_read_support_format_xar(struct archive *); int archive_read_support_format_zip(struct archive *); DESCRIPTION archive_read_support_format_7zip(), archive_read_support_format_ar(), archive_read_support_format_cab(), archive_read_support_format_cpio(), archive_read_support_format_iso9660(), archive_read_support_format_lha(), archive_read_support_format_mtree(), archive_read_support_format_rar(), archive_read_support_format_raw(), archive_read_support_format_tar(), archive_read_support_format_xar(), archive_read_support_format_zip() Enables support---including auto-detection code---for the speci- fied archive format. For example, archive_read_support_format_tar() enables support for a variety of standard tar formats, old-style tar, ustar, pax interchange format, and many common variants. archive_read_support_format_all() Enables support for all available formats except the "raw" format (see below). archive_read_support_format_by_code() Enables a single format specified by the format code. This can be useful when reading a single archive twice; use archive_format() after reading the first time and pass the re- sulting code to this function to selectively enable only the nec- essary format support. Note: In statically-linked executables, this will cause your program to include support for every format. If executable size is a concern, you may wish to avoid using this function. archive_read_support_format_empty() Enables support for treating empty files as empty archives. Be- cause empty files are valid for several different formats, it is not possible to accurately determine a format for an empty file based purely on contents. So empty files are treated by libarchive as a distinct format. archive_read_support_format_raw() The "raw" format handler allows libarchive to be used to read ar- bitrary data. It treats any data stream as an archive with a single entry. The pathname of this entry is "data"; all other entry fields are unset. This is not enabled by archive_read_support_format_all() in order to avoid erroneous handling of damaged archives. RETURN VALUES These functions return ARCHIVE_OK on success, or ARCHIVE_FATAL. ERRORS Detailed error codes and textual descriptions are available from the archive_errno() and archive_error_string() functions. SEE ALSO tar(1), archive_read_data(3), archive_read_filter(3), archive_read_set_options(3), archive_util(3), libarchive(3), tar(5) BUGS Many traditional archiver programs treat empty files as valid empty ar- chives. For example, many implementations of tar(1) allow you to append entries to an empty file. Of course, it is impossible to determine the format of an empty file by inspecting the contents, so this library treats empty files as having a special "empty" format. Using the "raw" handler together with any other handler will often work but can produce surprising results. BSD February 2, 2012 BSD
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | BUGS
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