1#!/bin/sh
2
3################################################################################
4##                                                                            ##
5## Copyright (c) International Business Machines  Corp., 2005                 ##
6##                                                                            ##
7## This program is free software;  you can redistribute it and#or modify      ##
8## it under the terms of the GNU General Public License as published by       ##
9## the Free Software Foundation; either version 2 of the License, or          ##
10## (at your option) any later version.                                        ##
11##                                                                            ##
12## This program is distributed in the hope that it will be useful, but        ##
13## WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ##
14## or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License   ##
15## for more details.                                                          ##
16##                                                                            ##
17## You should have received a copy of the GNU General Public License          ##
18## along with this program;  if not, write to the Free Software               ##
19## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA    ##
20##                                                                            ##
21##                                                                            ##
22################################################################################
23#
24# File:
25#   create_file
26#
27# Description:
28#   Create a file in the specified size
29#
30# Arguments:
31#   $1: filename
32#   $2: filesize
33#
34# Returns:
35#   0: Success
36#   1: Fail
37#
38# Author:
39#   Mitsuru Chinen <mitch@jp.ibm.com>
40#
41# History:
42#   Oct 19 2005 - Created (Mitsuru Chinen)
43#
44#-----------------------------------------------------------------------
45#Uncomment line below for debug output.
46#trace_logic=${trace_logic:-"set -x"}
47$trace_logic
48
49# Check argument
50if [ $# -ne 2 ] ; then
51    echo "Usage: create_file filename filesize" >&2
52    exit 1
53fi
54filename=$1
55filesize=$2
56
57if [ $filesize -le 0 ]; then
58    echo "The filesize should be bigger than 0" >&2
59    exit 1
60fi
61
62echo -n "A" > $filename 2>/dev/null
63echo -n "Z" | dd of=$filename bs=1 seek=`expr $filesize - 1` >/dev/null 2>&1
64if [ $? -ne 0 ]; then
65    echo "Failed to create $filename" >&2
66    exit 1
67fi
68chmod 644 $filename
69
70exit 0
71