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ARCHIVE_READ_FILTER(3) BSD Library Functions Manual
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ARCHIVE_READ_FILTER(3)
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NAME
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archive_read_support_filter_all,
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archive_read_support_filter_bzip2,
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archive_read_support_filter_compress,
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archive_read_support_filter_gzip,
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archive_read_support_filter_lz4,
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archive_read_support_filter_lzma,
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archive_read_support_filter_none,
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archive_read_support_filter_rpm,
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archive_read_support_filter_uu,
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archive_read_support_filter_xz,
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archive_read_support_filter_program,
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archive_read_support_filter_program_signature —
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functions for reading streaming archives
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LIBRARY
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Streaming Archive Library
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(libarchive, -larchive)
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SYNOPSIS
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#include
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<archive.h>
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int
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archive_read_support_filter_all(struct archive *);
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int
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archive_read_support_filter_bzip2(struct archive *);
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int
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archive_read_support_filter_compress(struct archive *);
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int
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archive_read_support_filter_grzip(struct archive *);
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int
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archive_read_support_filter_gzip(struct archive *);
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int
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archive_read_support_filter_lrzip(struct archive *);
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int
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archive_read_support_filter_lz4(struct archive *);
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int
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archive_read_support_filter_lzma(struct archive *);
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int
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archive_read_support_filter_lzop(struct archive *);
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int
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archive_read_support_filter_none(struct archive *);
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int
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archive_read_support_filter_rpm(struct archive *);
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int
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archive_read_support_filter_uu(struct archive *);
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int
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archive_read_support_filter_xz(struct archive *);
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int
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archive_read_support_filter_program(struct archive *,
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const char *cmd);
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int
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archive_read_support_filter_program_signature(struct archive *,
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const char *cmd,
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const void *signature,
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size_t signature_length);
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DESCRIPTION
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archive_read_support_filter_bzip2(),
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archive_read_support_filter_compress(),
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archive_read_support_filter_grzip(),
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archive_read_support_filter_gzip(),
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archive_read_support_filter_lrzip(),
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archive_read_support_filter_lz4(),
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archive_read_support_filter_lzma(),
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archive_read_support_filter_lzop(),
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archive_read_support_filter_none(),
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archive_read_support_filter_rpm(),
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archive_read_support_filter_uu(),
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archive_read_support_filter_xz()
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Enables auto-detection code and
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decompression support for the specified compression. These
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functions may fall back on external programs if an
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appropriate library was not available at build time.
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Decompression using an external program is usually slower
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than decompression through built-in libraries. Note that
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’’none’’ is always enabled by
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default.
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archive_read_support_filter_all()
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Enables all available
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decompression filters.
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archive_read_support_filter_program()
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Data is fed through the
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specified external program before being dearchived. Note
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that this disables automatic detection of the compression
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format, so it makes no sense to specify this in conjunction
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with any other decompression option.
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archive_read_support_filter_program_signature()
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This feeds data through the
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specified external program but only if the initial bytes of
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the data match the specified signature value.
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RETURN VALUES
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These functions return
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ARCHIVE_OK if the compression is fully supported,
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ARCHIVE_WARN if the compression is supported only
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through an external program.
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archive_read_support_filter_none()
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always succeeds.
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ERRORS
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Detailed error codes and textual
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descriptions are available from the archive_errno()
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and archive_error_string() functions.
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SEE ALSO
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libarchive(3), archive_read(3),
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archive_read_data(3), archive_read_format(3),
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archive_read_format(3)
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BSD
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August 14, 2014 BSD
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</body>
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</html>

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