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tools/lguest/extract 1.15 KB
f938d2c89   Rusty Russell   lguest: documenta...
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  #! /bin/sh
  
  set -e
  
  PREFIX=$1
  shift
  
  trap 'rm -r $TMPDIR' 0
  TMPDIR=`mktemp -d`
  
  exec 3>/dev/null
  for f; do
      while IFS="
  " read -r LINE; do
  	case "$LINE" in
  	    *$PREFIX:[0-9]*:\**)
  		NUM=`echo "$LINE" | sed "s/.*$PREFIX:\([0-9]*\).*/\1/"`
  		if [ -f $TMPDIR/$NUM ]; then
  		    echo "$TMPDIR/$NUM already exits prior to $f"
  		    exit 1
  		fi
  		exec 3>>$TMPDIR/$NUM
  		echo $f | sed 's,\.\./,,g' > $TMPDIR/.$NUM
  		/bin/echo "$LINE" | sed -e "s/$PREFIX:[0-9]*//" -e "s/:\*/*/" >&3
  		;;
  	    *$PREFIX:[0-9]*)
  		NUM=`echo "$LINE" | sed "s/.*$PREFIX:\([0-9]*\).*/\1/"`
  		if [ -f $TMPDIR/$NUM ]; then
  		    echo "$TMPDIR/$NUM already exits prior to $f"
  		    exit 1
  		fi
  		exec 3>>$TMPDIR/$NUM
  		echo $f | sed 's,\.\./,,g' > $TMPDIR/.$NUM
  		/bin/echo "$LINE" | sed "s/$PREFIX:[0-9]*//" >&3
  		;;
  	    *:\**)
  		/bin/echo "$LINE" | sed -e "s/:\*/*/" -e "s,/\*\*/,," >&3
  		echo >&3
  		exec 3>/dev/null
  		;;
  	    *)
  		/bin/echo "$LINE" >&3
  		;;
  	esac
      done < $f
      echo >&3
      exec 3>/dev/null
  done
  
  LASTFILE=""
  for f in $TMPDIR/*; do
      if [ "$LASTFILE" != $(cat $TMPDIR/.$(basename $f) ) ]; then
  	LASTFILE=$(cat $TMPDIR/.$(basename $f) )
  	echo "[ $LASTFILE ]"
      fi
      cat $f
  done