IS_IPV4_MAPPED
Syntax
IS_IPV4_MAPPED(expr)
Description
Returns 1 if a given a numeric binary string IPv6 address, such as returned by INET6_ATON(), is a valid IPv4-mapped address, otherwise returns 0.
MariaDB starting with 10.5.0
From MariaDB 10.5.0, when the argument is not INET6, automatic implicit CAST to INET6 is applied. As a consequence, IS_IPV4_MAPPED
now understands arguments in both text representation and binary(16) representation. Before MariaDB 10.5.0, the function understood only binary(16) representation.
Examples
SELECT IS_IPV4_MAPPED(INET6_ATON('::10.0.1.1')); +------------------------------------------+ | IS_IPV4_MAPPED(INET6_ATON('::10.0.1.1')) | +------------------------------------------+ | 0 | +------------------------------------------+ SELECT IS_IPV4_MAPPED(INET6_ATON('::ffff:10.0.1.1')); +-----------------------------------------------+ | IS_IPV4_MAPPED(INET6_ATON('::ffff:10.0.1.1')) | +-----------------------------------------------+ | 1 | +-----------------------------------------------+
Content reproduced on this site is the property of its respective owners, and this content is not reviewed in advance by MariaDB. The views, information and opinions expressed by this content do not necessarily represent those of MariaDB or any other party.
© 2021 MariaDB
Licensed under the Creative Commons Attribution 3.0 Unported License and the GNU Free Documentation License.
https://mariadb.com/kb/en/is_ipv4_mapped/