xref: /external/grub/stage2/size_test

#!/bin/sh

# Check the sizes of Stage 2 and Stage 1.5's.
# Copyright (C) 1999,2004  Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

# Written by OKUJI Yoshinori <okuji@kuicr.kyoto-u.ac.jp>


# This function checks if the size of the first argument (filename) is
# greater than the second argument (limit). If so, then exit with the
# status 1, otherwise do nothing.
check ()
{
    file=$1
    limit=$2
    set dummy `ls -l $file`
    size=$6
    if test $size -gt $limit; then
	echo "$file is too big ($size > $limit)."
	exit 1
    fi
}

# The bootloader area of a FFS partition is 14 sectors.
check ffs_stage1_5 7168

check ufs2_stage1_5 7168

# Stage 1.5 can be installed in the sectors immediately after MBR in the
# first cylinder, so the size is (63 - 1) sectors.
check fat_stage1_5 31744

# Likewise.
check e2fs_stage1_5 31744

# Likewise.
check minix_stage1_5 31744

# Success.
exit 0