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|
#!/bin/bash
# This is a parser for DOS/Atari disk images in Midnight Commander. You
# need the GPL mtools program (version >= 3.9.9) written by Emmet P. Gray,
# Viktor Dukhovni, Alain Knaff and David Niemi.
# Author: Guus Jansman
# Limitations:
# - Only the 1st primary harddisk partition and floppy images can be read
# - File attributes are not preserved.
# - Filenames containing non-ascii characters may cause problems (check mtools info).
# Alternative programs (not supported by this script):
# + Mounting a loop device (one has to have proper rights though).
# + XMess's imgtool (less powerfull).
# + Gilles Vollant's extract (DOS program, less powerful)
# + bximage (disk image creation, part of Bochs)
# Settings:
SIZE=1.44m # Only needed for creating a disk image
TEMPRCFILE=/tmp/mctmpfile-uimg.$USER.${RANDOM}
LISTIMG="mdir -/ -a -f"
ATTRIBIMG="mattrib"
ADDIMG="mcopy -pm -D o"
DELETEIMG="mdel"
EXTRACTIMG="mcopy"
MKDIRIMG="mmd"
RMDIRIMG="mrd"
TESTIMG="minfo"
CREATEIMG="mformat -C"
CONFIGIMG="mtoolstest"
case "$SIZE" in
160*) CREATEIMG="$CREATEIMG -f 160" # 12/40/1/8
;;
180*) CREATEIMG="$CREATEIMG -f 180" # 12/40/1/9
;;
320*) CREATEIMG="$CREATEIMG -f 320" # 12/40/2/8
;;
360*) CREATEIMG="$CREATEIMG -f 360" # 12/40/2/9
;;
720*) CREATEIMG="$CREATEIMG -f 720" # 12/80/2/9
;;
800*) CREATEIMG="$CREATEIMG -t 80 -h 2 -n 10" # 12/80/2/10
;;
1.2*) CREATEIMG="$CREATEIMG -f 1200" # 12/80/2/15
;;
1.4*) CREATEIMG="$CREATEIMG -f 1440" # 12/80/2/18
;;
2.8*) CREATEIMG="$CREATEIMG -f 2880" # 12/80/2/36
;;
*) CREATEIMG="$CREATEIMG -f 1440" # 12/80/2/18
;;
esac
drives="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
createmtoolsrc ()
{
# Find a free drive letter
useddrives="`$CONFIGIMG | grep -e '^drive [A-Z]:.*' | sed -e 's/drive \(.\):.*/\1/'`"
for (( drivenum=2 ; drivenum != 25 ; drivenum++ )) ; do
DRIVE=${drives:drivenum:1}
if [[ $useddrives == ${useddrives/$DRIVE/1} ]]; then
break; # Found a free drive letter
fi
done
if [[ drivenum == 25 ]]; then
exit 1; # Could not find a free drive letter
fi
DRIVE="${DRIVE}:"
# Create temporary settings file
rm -f $TEMPRCFILE ; touch $TEMPRCFILE
echo MTOOLS_LOWER_CASE=0 >> $TEMPRCFILE
echo MTOOLS_TWENTY_FOUR_HOUR_CLOCK=1 >> $TEMPRCFILE
echo "drive $DRIVE" >> $TEMPRCFILE
echo " file=\"$1\"" >> $TEMPRCFILE
echo " mformat_only" >> $TEMPRCFILE
if [[ -e "$1" && "`wc -c "$1" | sed -e 's/[ ]*\([^ ]*\).*$/\1/'`" -gt "4194304" ]]; then
echo " partition=1" >> $TEMPRCFILE
fi
# Set environment variable
export MTOOLSRC=$TEMPRCFILE
}
deletemtoolsrc ()
{
rm -f $TEMPRCFILE
}
mcimgfs_list ()
{
createmtoolsrc "$1"
$LISTIMG $DRIVE/ | gawk -v uid=${UID-0} '
BEGIN { direntry=0; date="JanFebMarAprMayJunJulAugSepOctNovDec" }
/^Directory for / { direntry=1 }
/[ ]*[0-9][0-9]* file/ { direntry=0 ; next }
/^$/ { next }
/^\./ { next }
// { if (direntry == 0) next }
{
if (index($0, "Directory for ") == 1)
{
curdir=substr($0, 18)
}
else
{
tm=substr($0, 36, 5)
year=substr($0, 24, 4)
month=substr(date, (substr($0, 29, 2)-1)*3 + 1, 3)
day=substr($0, 32, 2)
if (length($0) > 43)
{
str=substr($0, 43)
}
else
{
str=substr($0, 1, 8)
while (substr(str, length(str), 1) == " ")
{
str=substr(str, 1, length(str) - 1)
}
if (substr($0, 10, 3) != " ")
{
str=(str "." $2)
}
}
if (length(curdir) != 0)
{
str=(curdir "/" str)
}
if (substr($0, 14, 5) == "<DIR>")
{
perm="drwxr-xr-x"
sz=0
}
else
{
perm="-rw-r--r--"
sz=substr($0, 14, 9)
}
printf "%s 1 %-8d %-8d %8d %3s %2d %4d %s %s\n", perm, uid, 0, sz, month, day, year, tm, str
}
}'
deletemtoolsrc
}
mcimgfs_copyin ()
{
createmtoolsrc "$1"
$ADDIMG "$3" "$DRIVE/$2" >/dev/null
deletemtoolsrc
}
mcimgfs_copyout ()
{
createmtoolsrc "$1"
$EXTRACTIMG "$DRIVE/$2" - > "$3" 2>/dev/null
deletemtoolsrc
}
mcimgfs_rm ()
{
createmtoolsrc "$1"
$ATTRIBIMG -r "$DRIVE/$2" >/dev/null
$DELETEIMG "$DRIVE/$2" >/dev/null
deletemtoolsrc "$1"
}
mcimgfs_mkdir ()
{
createmtoolsrc "$1"
$MKDIRIMG "$DRIVE/$2" >/dev/null 2>/dev/null
deletemtoolsrc
}
mcimgfs_rmdir ()
{
createmtoolsrc "$1"
$RMDIRIMG "$DRIVE/$2" >/dev/null 2>/dev/null
deletemtoolsrc
}
mcimgfs_test ()
{
createmtoolsrc "$1"
if $TESTIMG $DRIVE >/dev/null 2>&1; then
echo "OK"
else
echo "UNKNOWN"
fi
deletemtoolsrc
}
mcimgfs_create ()
{
createmtoolsrc "$1"
$CREATEIMG $DRIVE >/dev/null
deletemtoolsrc
}
umask 077
cmd="$1"
shift
case "$cmd" in
list) mcimgfs_list "$@" ;;
rm) mcimgfs_rm "$@" ;;
copyin) mcimgfs_copyin "$@" ;;
copyout) mcimgfs_copyout "$@" ;;
mkdir) mcimgfs_mkdir "$@" ;;
rmdir) mcimgfs_rmdir "$@" ;;
# test) mcimgfs_test "$@" ;; # Not supported by MC extfs
# create) mcimgfs_create "$@" ;; # Not supported by MC extfs
*) exit 1 ;;
esac
exit 0
|
