Bug #12998841: libmysql divulges plaintext password upon request in 5.5

1. Clear text password client plugin disabled by default.
2. Added an environment variable LIBMYSQL_ENABLE_CLEARTEXT_PLUGIN, that
when set to something starting with '1', 'Y' or 'y' will enable the clear
text
plugin for all connections.
3. Added a new mysql_options() option : MYSQL_ENABLE_CLEARTEXT_PLUGIN
that takes an my_bool argument. When the value of the argument is non-zero
the clear text plugin is enabled for this connection only.
4. Added an enable-cleartext-plugin config file option that takes a numeric

argument. If the numeric value of the numeric argument is non-zero the
clear
text plugin is enabled for the connection
5. Added a boolean command line option "--enable_cleartext_plugin" to
mysql, mysqlslap and mysqladmin. When specified it will call mysql_options
with the effect of #3
6. Added a new CLEARTEXT option to the connect command in mysqltest.
When specified it will enable the cleartext plugin for usage.
7. Added test cases and updated existing ones that need the clear text
plugin.

1 files changed, 2 insertions, 0 deletions

diff --git a/include/sql_common.h b/include/sql_common.h
index 307b443d6d6..a2ea3ac45e7 100644
--- a/include/sql_common.h
+++ b/include/sql_common.h
@@ -31,6 +31,7 @@ extern const char	*not_error_sqlstate;
 struct st_mysql_options_extention {
   char *plugin_dir;
   char *default_auth;
+  my_bool enable_cleartext_plugin;
 };
 
 typedef struct st_mysql_methods
@@ -104,6 +105,7 @@ int mysql_client_plugin_init();
 void mysql_client_plugin_deinit();
 struct st_mysql_client_plugin;
 extern struct st_mysql_client_plugin *mysql_client_builtins[];
+extern my_bool libmysql_cleartext_plugin_enabled;
 
 #ifdef	__cplusplus
 }