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-rw-r--r--client/mysqltest.c61
-rw-r--r--mysql-test/r/change_user.result46
-rw-r--r--mysql-test/r/mysqltest.result3
-rw-r--r--mysql-test/t/change_user.test35
-rw-r--r--mysql-test/t/mysqltest.test18
5 files changed, 162 insertions, 1 deletions
diff --git a/client/mysqltest.c b/client/mysqltest.c
index 702eab0078f..7a84ec8cf40 100644
--- a/client/mysqltest.c
+++ b/client/mysqltest.c
@@ -263,7 +263,7 @@ enum enum_commands {
Q_REPLACE_REGEX, Q_REMOVE_FILE, Q_FILE_EXIST,
Q_WRITE_FILE, Q_COPY_FILE, Q_PERL, Q_DIE, Q_EXIT, Q_SKIP,
Q_CHMOD_FILE, Q_APPEND_FILE, Q_CAT_FILE, Q_DIFF_FILES,
- Q_SEND_QUIT,
+ Q_SEND_QUIT, Q_CHANGE_USER,
Q_UNKNOWN, /* Unknown command. */
Q_COMMENT, /* Comments, ignored. */
@@ -352,6 +352,7 @@ const char *command_names[]=
"cat_file",
"diff_files",
"send_quit",
+ "change_user",
0
};
@@ -3030,6 +3031,63 @@ void do_send_quit(struct st_command *command)
/*
SYNOPSIS
+ do_change_user
+ command called command
+
+ DESCRIPTION
+ change_user [<user>], [<passwd>], [<db>]
+ <user> - user to change to
+ <passwd> - user password
+ <db> - default database
+
+ Changes the user and causes the database specified by db to become
+ the default (current) database for the the current connection.
+
+*/
+
+void do_change_user(struct st_command *command)
+{
+ MYSQL *mysql = &cur_con->mysql;
+ /* static keyword to make the NetWare compiler happy. */
+ static DYNAMIC_STRING ds_user, ds_passwd, ds_db;
+ const struct command_arg change_user_args[] = {
+ { "user", ARG_STRING, FALSE, &ds_user, "User to connect as" },
+ { "password", ARG_STRING, FALSE, &ds_passwd, "Password used when connecting" },
+ { "database", ARG_STRING, FALSE, &ds_db, "Database to select after connect" },
+ };
+
+ DBUG_ENTER("do_change_user");
+
+ check_command_args(command, command->first_argument,
+ change_user_args,
+ sizeof(change_user_args)/sizeof(struct command_arg),
+ ',');
+
+ if (!ds_user.length)
+ dynstr_set(&ds_user, mysql->user);
+
+ if (!ds_passwd.length)
+ dynstr_set(&ds_passwd, mysql->passwd);
+
+ if (!ds_db.length)
+ dynstr_set(&ds_db, mysql->db);
+
+ DBUG_PRINT("info",("connection: '%s' user: '%s' password: '%s' database: '%s'",
+ cur_con->name, ds_user.str, ds_passwd.str, ds_db.str));
+
+ if (mysql_change_user(mysql, ds_user.str, ds_passwd.str, ds_db.str))
+ die("change user failed: %s", mysql_error(mysql));
+
+ dynstr_free(&ds_user);
+ dynstr_free(&ds_passwd);
+ dynstr_free(&ds_db);
+
+ DBUG_VOID_RETURN;
+}
+
+
+/*
+ SYNOPSIS
do_perl
command command handle
@@ -6836,6 +6894,7 @@ int main(int argc, char **argv)
case Q_APPEND_FILE: do_append_file(command); break;
case Q_DIFF_FILES: do_diff_files(command); break;
case Q_SEND_QUIT: do_send_quit(command); break;
+ case Q_CHANGE_USER: do_change_user(command); break;
case Q_CAT_FILE: do_cat_file(command); break;
case Q_COPY_FILE: do_copy_file(command); break;
case Q_CHMOD_FILE: do_chmod_file(command); break;
diff --git a/mysql-test/r/change_user.result b/mysql-test/r/change_user.result
new file mode 100644
index 00000000000..d0dfa855add
--- /dev/null
+++ b/mysql-test/r/change_user.result
@@ -0,0 +1,46 @@
+Bug#20023
+SELECT @@session.sql_big_selects;
+@@session.sql_big_selects
+1
+SELECT @@global.max_join_size;
+@@global.max_join_size
+-1
+change_user
+SELECT @@session.sql_big_selects;
+@@session.sql_big_selects
+1
+SELECT @@global.max_join_size;
+@@global.max_join_size
+-1
+SET @@global.max_join_size = 10000;
+SET @@session.max_join_size = default;
+change_user
+SELECT @@session.sql_big_selects;
+@@session.sql_big_selects
+0
+SET @@global.max_join_size = -1;
+SET @@session.max_join_size = default;
+change_user
+SELECT @@session.sql_big_selects;
+@@session.sql_big_selects
+1
+Bug#31418
+SELECT IS_FREE_LOCK('bug31418');
+IS_FREE_LOCK('bug31418')
+1
+SELECT IS_USED_LOCK('bug31418');
+IS_USED_LOCK('bug31418')
+NULL
+SELECT GET_LOCK('bug31418', 1);
+GET_LOCK('bug31418', 1)
+1
+SELECT IS_USED_LOCK('bug31418');
+IS_USED_LOCK('bug31418')
+1
+change_user
+SELECT IS_FREE_LOCK('bug31418');
+IS_FREE_LOCK('bug31418')
+1
+SELECT IS_USED_LOCK('bug31418');
+IS_USED_LOCK('bug31418')
+NULL
diff --git a/mysql-test/r/mysqltest.result b/mysql-test/r/mysqltest.result
index d03e21b1bb0..a7df1a523cf 100644
--- a/mysql-test/r/mysqltest.result
+++ b/mysql-test/r/mysqltest.result
@@ -722,4 +722,7 @@ a int(11) YES NULL
b varchar(255) YES NULL
c datetime YES NULL
drop table t1;
+mysqltest: At line 1: change user failed: Unknown database 'inexistent'
+mysqltest: At line 1: change user failed: Access denied for user 'inexistent'@'localhost' (using password: NO)
+mysqltest: At line 1: change user failed: Access denied for user 'root'@'localhost' (using password: YES)
End of tests
diff --git a/mysql-test/t/change_user.test b/mysql-test/t/change_user.test
new file mode 100644
index 00000000000..2900cd434a4
--- /dev/null
+++ b/mysql-test/t/change_user.test
@@ -0,0 +1,35 @@
+#
+# Bug#20023 mysql_change_user() resets the value of SQL_BIG_SELECTS
+#
+
+--echo Bug#20023
+SELECT @@session.sql_big_selects;
+SELECT @@global.max_join_size;
+--echo change_user
+--change_user
+SELECT @@session.sql_big_selects;
+SELECT @@global.max_join_size;
+SET @@global.max_join_size = 10000;
+SET @@session.max_join_size = default;
+--echo change_user
+--change_user
+SELECT @@session.sql_big_selects;
+SET @@global.max_join_size = -1;
+SET @@session.max_join_size = default;
+--echo change_user
+--change_user
+SELECT @@session.sql_big_selects;
+
+#
+# Bug#31418 User locks misfunctioning after mysql_change_user()
+#
+
+--echo Bug#31418
+SELECT IS_FREE_LOCK('bug31418');
+SELECT IS_USED_LOCK('bug31418');
+SELECT GET_LOCK('bug31418', 1);
+SELECT IS_USED_LOCK('bug31418');
+--echo change_user
+--change_user
+SELECT IS_FREE_LOCK('bug31418');
+SELECT IS_USED_LOCK('bug31418');
diff --git a/mysql-test/t/mysqltest.test b/mysql-test/t/mysqltest.test
index 8a38972c00f..0fcdbb8de46 100644
--- a/mysql-test/t/mysqltest.test
+++ b/mysql-test/t/mysqltest.test
@@ -2080,5 +2080,23 @@ eval $show_statement;
drop table t1;
+# ----------------------------------------------------------------------------
+# Test change_user command
+# ----------------------------------------------------------------------------
+
+--error 1
+--exec echo "--change_user root,,inexistent" | $MYSQL_TEST 2>&1
+
+--error 1
+--exec echo "--change_user inexistent,,test" | $MYSQL_TEST 2>&1
+
+--error 1
+--exec echo "--change_user root,inexistent,test" | $MYSQL_TEST 2>&1
+
+--change_user
+--change_user root
+--change_user root,,
+--change_user root,,test
+
--echo End of tests