Add a log message to the buffer. */

@brief Update the hostname. Updates ip and ip_mask accordingly. @param host_arg Value to be stored */

Determines if the user specified by user, host, ip matches the utility user */

Auxiliary function for constructing a user list string. This function is used for error reporting and logging. @param thd Thread context

See documentation in header file. */

a helper function to report an access denied error in all the proper places */

Close a connection. @param thd Thread handle. @param sql_errno The error code to send before disconnect. @note For the connection

Writes an incident event to the binary log. @param ev Incident event to be written @param need_lock_log If true, will acquire LOCK_log; otherwise