lib/vfs/mc-vfs/extfs/iso9660.in

   1 #! /bin/sh
   2
   3 # ISO9660 VFS for MC by Michael Shigorin <mike@altlinux.org>,
   4 #   modifications by Grigory Milev <week@altlinux.org>
   5 #   and Kachalov Anton <mouse@linux.ru.net>   April 2003
   6 # based on lslR by Tomas Novak <tnovak@ipex.cz>   April 2000
   7 # -- look there for additional parsing comments if needed
   8
   9 # tested to comply with isoinfo 2.0's output
  10
  11 test_iso () {
  12     CHARSET=`locale charmap 2>/dev/null`
  13     if test -z "$CHARSET"; then
  14         CHARSET=`locale 2>/dev/null | @GREP@ LC_CTYPE | sed -n -e 's/.*\.\(.*\)"$/\1/p'`
  15     fi
  16     if test -n "$CHARSET"; then
  17         CHARSET=`echo "$CHARSET" | tr '[A-Z]' '[a-z]' | sed -e 's/^iso-/iso/'`
  18         isoinfo -j $CHARSET -i /dev/null 2>&1 | @GREP@ "Iconv not yet supported\|Unknown charset" >/dev/null && CHARSET=
  19     fi
  20     if test -n "$CHARSET"; then
  21         JOLIET_OPT="-j $CHARSET -J"
  22     else
  23         JOLIET_OPT="-J"
  24     fi
  25     ISOINFO="isoinfo -R"
  26     isoinfo -d -i "$1" 2>/dev/null | @GREP@ "UCS level 1\|NO Joliet" > /dev/null || ISOINFO="$ISOINFO $JOLIET_OPT"
  27
  28     if [ `isoinfo -d -i "$1" 2>/dev/null | @GREP@ "Joliet with UCS level 3 found" | wc -l` == 1 ] ; then
  29         if [ `isoinfo -d -i "$1" 2>/dev/null | @GREP@ "NO Rock Ridge" | wc -l` == 1 ] ; then
  30             SEMICOLON="YES"
  31         fi
  32     fi
  33 }
  34
  35 mcisofs_list () {
  36 # left as a reminder to implement compressed image support =)
  37 case "$1" in
  38   *.lzma) MYCAT="lzma -dc";;
  39   *.xz)  MYCAT="xz -dc";;
  40   *.bz2) MYCAT="bzip2 -dc";;
  41   *.gz)  MYCAT="gzip -dc";;
  42   *.z)   MYCAT="gzip -dc";;
  43   *.Z)   MYCAT="gzip -dc";;
  44   *)     MYCAT="cat";;
  45 esac
  46
  47 $ISOINFO -l -i "$1" 2>/dev/null | @AWK@ -v SEMICOLON=$SEMICOLON '
  48 BEGIN {
  49   dir="";
  50   # Pattern to match 8 first fields.
  51   rx = "[^      ]+[     ]+";
  52   rx = "^" rx rx rx rx rx rx rx rx;
  53   irx = "^\\[ *-?[0-9]* *[0-9]+\\] +";
  54 }
  55 /^$/ { next }
  56 /^d---------/ { next }
  57 /^Directory listing of [^       ].*$/ {
  58   dir=substr($0, 23);
  59   next;
  60 }
  61 { $11 != "" } {
  62   name=$0
  63   sub(rx, "", name)
  64   attr=substr($0, 1, length($0)-length(name))
  65   # strip inodes and extra dir entries; fix perms
  66   sub(irx, "", name)
  67   sub("^----------   0    0    0", "-r--r--r--   1 root root", attr)
  68   sub(" $", "", name)
  69   # for Joliet UCS level 3
  70   if (SEMICOLON = "YES") sub(";1$", "", name);
  71   ## sub(";[0-9]+$", "", name) ## would break copyout
  72   # skip . and ..
  73   if (name ~ /^\.\.?/) next;
  74   printf "%s%s%s\n", attr, dir, name
  75 }'
  76 }
  77
  78 mcisofs_copyout () {
  79         if [ "x$SEMICOLON" == "xYES" ]; then
  80             $ISOINFO -i "$1" -x "/$2;1" 2>/dev/null > "$3"
  81         else
  82             $ISOINFO -i "$1" -x "/$2" 2>/dev/null > "$3"
  83         fi
  84 }
  85
  86 LC_ALL=C
  87
  88 cmd="$1"
  89 shift
  90
  91 case "$cmd" in
  92   list)
  93     test_iso "$@";
  94     mcisofs_list "$@";
  95     exit 0;;
  96   copyout)
  97     test_iso "$@";
  98     mcisofs_copyout "$@";
  99     exit 0;;
 100 esac
 101 exit 1