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Manual Reference Pages  -  ARCHIVE_READ_SET_OPTION (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

CONTENTS

Library
Synopsis
Description
Options
Errors
See Also

LIBRARY

Streaming Archive Library (libarchive, -larchive)

SYNOPSIS

int
.Fo archive_read_set_filter_option struct archive * const char *module const char *option const char *value
.Fc int
.Fo archive_read_set_format_option struct archive * const char *module const char *option const char *value
.Fc int
.Fo archive_read_set_option struct archive * const char *module const char *option const char *value
.Fc int
.Fo archive_read_set_options struct archive * const char *options
.Fc

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)
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