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#!/bin/sh
# These routines contain the filesystem generation code.
# This code is sourced by the other scripts so that digest
# generation is consistent.
# dgen - Exercises the -d directory option of genext2fs
# Creates an image with a file of given size
# Usage: dgen file-size number-of-blocks
dgen () {
size=$1; blocks=$2
rm -rf test
mkdir -p test
cd test
if [ x$size = x0 ]; then
> file.$1
else
dd if=/dev/zero of=file.$1 bs=$size count=1 2>/dev/null
fi
chmod 777 file.$1
TZ=UTC-11 touch -t 200502070321.43 file.$1 .
cd ..
./genext2fs -N 17 -b $blocks -d test -f -q ext2.img
}
# fgen - Exercises the -f spec-file option of genext2fs
# Creates an image with the devices mentioned in the given spec file
# Usage: fgen spec-file number-of-blocks
fgen () {
fname=$1; blocks=$2;
mkdir -p test
cp $fname test
TZ=UTC-11 touch -t 200502070321.43 test/$fname
./genext2fs -N 92 -b $blocks -D test/$fname -f ext2.img
}
# gen_cleanup - Remove the files generated by the above functions
# Usage: gen_cleanup
gen_cleanup () {
rm -rf ext2.img test
}
# calc_digest - Return the MD5 digest of the test image
# Usage: calc_digest
calc_digest () {
digest=`md5sum ext2.img 2>/dev/null | cut -f 1 -d " "`
if [ x$digest != x ] ; then
echo $digest
else
digest=`md5 ext2.img 2>/dev/null | cut -f 4 -d " "`
echo $digest
fi
}
LC_ALL=C
export LC_ALL
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