#!/bin/sh
#
#ident	"@(#)i.mailxrc	1.3	00/07/17 SMI"
#
# Copyright (c) 1995 by Sun Microsystems, Inc.
# All rights reserved.
#
txtfile=/tmp/mailx-txt.$$
scrfile=/tmp/mailx-scratch.$$

export txtfile scrfile
while read src dest
do
	if [ ! -f $dest ] ; then
		cp $src $dest
	else
		#
		# determine whether existing etc/mail/mailx.rc file is
		# based on the same one being installed.  If so, no need
		# to update it.
		#
		newrev="`sed -n 's/^.*\(@(#)mailx\.rc.*\)\".*/\1/p' $src`"
		sed -n -e 's/^\([^#]*\).*$/\1/p' < $dest > $scrfile
		#
		# if either of the following is defined, no need to update.
		#
		if grep 'set[ 	][ 	]*appenddeadletter' $scrfile \
		       >/dev/null 2>&1 || \
		   grep 'set[ 	][ 	]*+pipeignore' $scrfile \
		       >/dev/null 2>&1 ; then
			:
		else
			#
			# existing /etc/mail/mailx.rc file is based on
			# the original installed version
			#
			echo "# The following 3 settings produce the familiar Solaris behavior." > $txtfile
			echo "set appenddeadletter" >> $txtfile
			echo "unset pipeignore" >> $txtfile
			echo "unset replyall" >> $txtfile
			printf "1 c\n# \"%s\"\n.\n1 r %s\nw\nq\n" "$newrev" $txtfile | ed -s $dest
		fi
	fi
done
rm -f $txtfile $scrfile
exit 0