Dear list, scenario:
I am using apache2.4 and mod_dbd + mod_authn_dbd for DB based authentication in apache. I started with using the following directive: AuthDBDUserPWQuery "CALL queryUser(%s)" but I came into trouble, because calling a stored procedure in MySQL requires proper handle of multiple result sets: https://dev.mysql.com/doc/refman/5.7/en/c-api-multiple-queries.html In a short summary the current mysql driver of apr-util does not support multiple result sets, cause the requirements are: 1. Support for the flag CLIENT_MULTI_RESULTS must be added to the driver to allow specifying it via the DBDParam directive in apache config. Currently only one value (CLIENT_FOUND_ROWS) is supported. So IMHO the logic in lines 1167-1170 of apr_util/1.6.x/dbd/apr_dbd_mysql.c must be extended in a more generic way to support more than one flag. Maybe using the pipe char as a delimiter? 2. Retrieving the result sets from mysql must be extended to use mysql_next_result(), but I do not get the full logic behind dbd_mysql_select in lines 231-266 of apr_util/1.6.x/dbd/apr_dbd_mysql.c, the know whether this is really possible to implement or if it breaks the logic of the driver api. In addition, if the caller of the apr-mysql-driver does not step through all result sets (I think mod_authn_dbd just looks in the first row) the driver has to loop through all remaining result sets using mysql_next_result (this is how I understand the doc in the link above). Thanks in advance and best regards Torge
