php_getdns_context_set_tls_query_padding_blocksize

(PECL getdns >= 0.10.0)

php_getdns_context_set_tls_query_padding_blocksize — Set the TLS query padding block size.

Description

int php_getdns_context_set_tls_query_padding_blocksize ( int $context , int $value )

This function can be used to set the EDNS(0) block size padding option. With this option, the query size will be padded to be a multiple of a block size when queried over GETDNS_TRANSPORT_TLS transport. This is designed to reduce the possibility of guessing the query by analyzing query sizes.

Parameters

context: The previously created DNS context that is to be used with this request.
value: The value to be set. Valid values range from 0 (zero) to MAXIMUM_UPSTREAM_OPTION_SPACE - 4. The value of MAXIMUM_UPSTREAM_OPTION_SPACE is a getdns library configuration parameter.

Return Values

This function returns an integer response code. GETDNS_RETURN_GOOD indicates successful completion.