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_lz4, archive_read_support_filter_lzma,

     archive_read_support_filter_none, archive_read_support_filter_rpm,

     archive_read_support_filter_uu, 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_grzip(struct archive *);

     int

     archive_read_support_filter_gzip(struct archive *);

     int

     archive_read_support_filter_lrzip(struct archive *);

     int

     archive_read_support_filter_lz4(struct archive *);

     int

     archive_read_support_filter_lzma(struct archive *);

     int

     archive_read_support_filter_lzop(struct archive *);

     int

     archive_read_support_filter_none(struct archive *);

     int

     archive_read_support_filter_rpm(struct archive *);

     int

     archive_read_support_filter_uu(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_grzip(),

	     archive_read_support_filter_gzip(),

	     archive_read_support_filter_lrzip(),

	     archive_read_support_filter_lz4(),

	     archive_read_support_filter_lzma(),

	     archive_read_support_filter_lzop(),

	     archive_read_support_filter_none(),

	     archive_read_support_filter_rpm(),

	     archive_read_support_filter_uu(),

	     archive_read_support_filter_xz()

	     Enables auto-detection code and decompression support for the

	     specified compression.  These functions may fall back on external

	     programs 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

	     compression format, so it makes no sense to specify this in con‐

	     junction 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 external

     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				August 14, 2014 			   BSD