config root man

#############################################################################
# Bug#17786581:SERVER WRITES INTO WORLD-WRITEABLE FILE EVEN AFTER WARNING ABOUT
# IT.
#
# Problem:
# ========
# UUID exists in a file named "auto.cnf", make this auto.cnf  file as world
# writable. The server starts, and it sees the auto.cnf is world writable and
# writes a following warning:
#
# Warning: World-writable con-fig file './auto.cnf' is ignored
#
# A new UUID is generated and the new UUID is once again  written to the same
# world writable file which is not safe.
#
# Test:
# =====
# During the execution of the script change file permissions of 'auto.cnf' to
# 777. Restart the server and check that the newly generated 'auto.cnf' file
# has valid 660 file permissions.
###############################################################################
# Run only on Linux:Since file permissions vary from one os to the other
# we execute this script only on linux to avoid test failures.
--source include/linux.inc
# include/restart_mysqld.inc does not work in embedded mode
--source include/not_embedded.inc

CALL mtr.add_suppression("World-writable config file './auto.cnf' is ignored");
CALL mtr.add_suppression("World-writable config file './auto.cnf' has been removed.");

# Change file permissions to world writable
--let $MYSQL_DATA_DIR=`select @@datadir`
--let _INPUT_FILE_=$MYSQL_DATA_DIR/auto.cnf
--let _FILE_PERMS_=0777
--source include/change_file_perms.inc

# Restart the server
--source include/restart_mysqld.inc

# Check that it has 660 valid permissions.
--perl
 use strict;
 my $input_file= $ENV{'_INPUT_FILE_'};
 my $mode = (stat($input_file))[2];
 open(FILE, ">", "$ENV{MYSQL_TMP_DIR}/permissions.inc") or die;
 my $perm= $mode & 07777;
 print FILE "let \$FILE_PERMISSIONS= $perm;\n";
 close FILE;
EOF

--source $MYSQL_TMP_DIR/permissions.inc
--remove_file $MYSQL_TMP_DIR/permissions.inc

--let $assert_cond= $FILE_PERMISSIONS= 432
--let $assert_text= File permissions should be equl to decimal 432(i.e octal 660).
--source include/assert.inc

# Clear
--let _FILE_PERMS_=
--let _INPUT_FILE_=