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 nothing 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.  Otherwise, 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 disable.

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