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ARCHIVE_READ_OPTIONS(3) 	   BSD Library Functions Manual 	  ARCHIVE_READ_OPTIONS(3)

NAME
     archive_read_set_filter_option, archive_read_set_format_option, archive_read_set_option,
     archive_read_set_options -- functions controlling options for reading archives

LIBRARY
     Streaming Archive Library (libarchive, -larchive)

SYNOPSIS
     int
     archive_read_set_filter_option(struct archive *, const char *module, const char *option,
	 const char *value);

     int
     archive_read_set_format_option(struct archive *, const char *module, const char *option,
	 const char *value);

     int
     archive_read_set_option(struct archive *, const char *module, const char *option,
	 const char *value);

     int
     archive_read_set_options(struct archive *, const char *options);

DESCRIPTION
     These functions provide a way for libarchive clients to configure specific read modules.

     archive_read_set_filter_option(), archive_read_set_format_option()
	     Specifies an option that will be passed to currently-registered filters (including
	     decompression filters) or format readers.

	     If option and value are both NULL, these functions will do nothing and ARCHIVE_OK
	     will be returned.	If option is NULL but value is not, these functions will do noth-
	     ing and ARCHIVE_FAILED will be returned.

	     If module is not NULL, option and value will be provided to the filter or reader
	     named module.  The return value will be that of the module.  If there is no such
	     module, ARCHIVE_FAILED will be returned.

	     If module is NULL, option and value will be provided to every registered module.  If
	     any module returns ARCHIVE_FATAL, this value will be returned immediately.  Other-
	     wise, ARCHIVE_OK will be returned if any module accepts the option, and
	     ARCHIVE_FAILED in all other cases.

     archive_read_set_option()
	     Calls archive_read_set_format_option(), then archive_read_set_filter_option().  If
	     either function returns ARCHIVE_FATAL, ARCHIVE_FATAL will be returned immediately.
	     Otherwise, greater of the two values will be returned.

     archive_read_set_options()
	     options is a comma-separated list of options.  If options is NULL or empty,
	     ARCHIVE_OK will be returned immediately.

	     Calls archive_read_set_option() with each option in turn.	If any
	     archive_read_set_option() call returns ARCHIVE_FATAL, ARCHIVE_FATAL will be returned
	     immediately.

	     Individual options have one of the following forms:
	     option=value
		     The option/value pair will be provided to every module.  Modules that do not
		     accept an option with this name will ignore it.
	     option  The option will be provided to every module with a value of ``1''.
	     !option
		     The option will be provided to every module with a NULL value.
	     module:option=value, module:option, module:!option
		     As above, but the corresponding option and value will be provided only to
		     modules whose name matches module.

OPTIONS
     Format iso9660
	     joliet  Support Joliet extensions.  Defaults to enabled, use !joliet to disable.
	     rockridge
		     Support RockRidge extensions.  Defaults to enabled, use !rockridge to dis-
		     able.

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

SEE ALSO
     tar(1), libarchive(3), archive_write_set_options(3), archive_read(3)

BSD					 February 2, 2012				      BSD
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