MariaDB Connector/C 2.3.0 Release notes

The most recent Stable (GA) release of MariaDB Connector/C is:
MariaDB Connector/C 3.3.8

Download Release Notes Changelog About MariaDB Connector/C

Release date: 1 Jul 2016

This is a Stable (GA) release of the MariaDB Connector/C, formerly known as MariaDB Client Library for C.

For a description of this library see the MariaDB Connector/C page.

New features

New option MARIADB_OPT_VERIFY_LOCAL_INFILE_CALLBACK which allows the verification of filename and directory for LOAD DATA LOCAL INFILE calls.

The option must be set via mysql_optionsv call:

mysql_optionsv(mysql, MARIADB_OPT_VERIFY_LOCAL_INFILE_CALLBACK, my_verify_function, data);

The registered callback function has the following format

  int my_verify_function(void *data, const char *filename)

It returns 0 on success, non zero for error.

For a complete example check test_local_infile_callback in misc.c

Notable Bug fixes

  • In case getaddrinfo() returns an error, we return the WSA Error code instead of gai error. (For more information please read
  • Fixed numeric precision in prepared statements when converting float and double values to strings
  • When connecting via TLS socket is now set to non blocking. If SSL_get_error returns WANT_READ/WANT_WRITE SSL_connect will be called again until connect timeout seconds passed.
  • Fixed behaviour of getaddrinfo: If getaddrinfo returns EAI_AGAIN getaddrinfo will be called again until connect timeout seconds passed. If no connect timeout was specified, a default value of 30 seconds will be used.
  • Removed LONGLONG_MIN/MAX definition from config-win.h as they are also defined in my_global
  • Fix for windows build: replace SIZEOF_CHARP with sizeof(char *)
  • CONC-190: Don't use verify callback in global context, since it may cause bad/unexpected behaviour in threaded issues. Instead now verification of peer certificate will be processed by the OpenSSL library itself.
  • Fixed possible memory overrun in my_strdup_root
  • CONC-177: fixed zerofill issues (converting numeric to string)


For a list of changes made in this release, with links to detailed information on each push, see the changelog.

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