DOKK / manpages / debian 12 / libmariadb-dev / mysql_get_proto_info.3.en
mysql_get_proto_info(3) MariaDB Connector/C mysql_get_proto_info(3)

mysql_get_proto_info - Returns protocol version number

#include <mysql.h>
unsigned int mysql_get_proto_info(MYSQL * mysql);

Returns the protocol version number for the specified connection

•
mysql - a connection identifier, which was previously allocated by mysql_init(3) and connected by mysql_real_connect(3).

MariaDB Connector/C doesn’t support protocol version 9 and prior.

The protocol version number in use

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mysql_get_host_info(3)
Version 3.3.1