ARCHIVE_READ_FILTER(3)					   BSD Library Functions Manual 				    ARCHIVE_READ_FILTER(3)

NAME

     archive_read_support_filter_all, archive_read_support_filter_bzip2, archive_read_support_filter_compress, archive_read_support_filter_gzip,
     archive_read_support_filter_lzma, archive_read_support_filter_none, archive_read_support_filter_xz, archive_read_support_filter_program,
     archive_read_support_filter_program_signature -- functions for reading streaming archives

LIBRARY

     Streaming Archive Library (libarchive, -larchive)

SYNOPSIS

     #include <archive.h>

     int
     archive_read_support_filter_all(struct archive *);

     int
     archive_read_support_filter_bzip2(struct archive *);

     int
     archive_read_support_filter_compress(struct archive *);

     int
     archive_read_support_filter_gzip(struct archive *);

     int
     archive_read_support_filter_lzma(struct archive *);

     int
     archive_read_support_filter_none(struct archive *);

     int
     archive_read_support_filter_xz(struct archive *);

     int
     archive_read_support_filter_program(struct archive *, const char *cmd);

     int
     archive_read_support_filter_program_signature(struct archive *, const char *cmd, const void *signature, size_t signature_length);

DESCRIPTION

     archive_read_support_filter_bzip2(), archive_read_support_filter_compress(), archive_read_support_filter_gzip(),
	     archive_read_support_filter_lzma(), archive_read_support_filter_none(), archive_read_support_filter_xz()
	     Enables auto-detection code and decompression support for the specified compression.  These functions may fall back on external pro-
	     grams if an appropriate library was not available at build time.  Decompression using an external program is usually slower than
	     decompression through built-in libraries.	Note that ``none'' is always enabled by default.
     archive_read_support_filter_all()
	     Enables all available decompression filters.
     archive_read_support_filter_program()
	     Data is fed through the specified external program before being dearchived.  Note that this disables automatic detection of the com-
	     pression format, so it makes no sense to specify this in conjunction with any other decompression option.
     archive_read_support_filter_program_signature()
	     This feeds data through the specified external program but only if the initial bytes of the data match the specified signature value.

RETURN VALUES

     These functions return ARCHIVE_OK if the compression is fully supported, ARCHIVE_WARN if the compression is supported only through an exter-
     nal program.

     archive_read_support_filter_none() always succeeds.

ERRORS

     Detailed error codes and textual descriptions are available from the archive_errno() and archive_error_string() functions.

SEE ALSO

     libarchive(3), archive_read(3), archive_read_data(3), archive_read_format(3), archive_read_format(3)

BSD
								 February 2, 2012							       BSD