#!/bin/sh
# chamod ng flag - change the "moderated" flag for ng to flag

# =()<. ${NEWSCONFIG-@<NEWSCONFIG>@}>()=
. ${NEWSCONFIG-/var/lib/news/bin/config}
export NEWSCTL NEWSBIN NEWSARTS
PATH=$NEWSCTL/bin:$NEWSBIN:$NEWSPATH ; export PATH
umask $NEWSUMASK

case "$1" in
"")
	echo "$0: null newsgroup not permitted" >&2
	exit 1
	;;
esac
case "$2" in
moderated|m)	flag=m ;;
*)		flag=y ;;
esac

# watch closely - shell quoting is tricky in the next two awk invocations
aflag=`awk '$1 == "'$1'" { print $4 }' $NEWSCTL/active`
if test "$aflag" != "$flag" -a \( "$aflag" = m -o "$aflag" = y \); then
	# old & new flags differ & old flag is m or y
	awk '
$1 == "'$1'"	{			# this line is for first arg.
	print $1, $2, $3, "'$flag'"
	next
}
	{ print }
' $NEWSCTL/active >$NEWSCTL/active.new
	cp $NEWSCTL/active $NEWSCTL/active.old
	cp $NEWSCTL/active.new $NEWSCTL/active
	rm -f $NEWSCTL/active.new

	case "$flag" in
	m)	pfx="" ;;
	*)	pfx=un ;;
	esac
	echo "newsgroup $1 was changed to ${pfx}moderated by $SENDER" |
		mail $NEWSMASTER
fi