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      1 #!/bin/sh
      2 #
      3 # CDDL HEADER START
      4 #
      5 # The contents of this file are subject to the terms of the
      6 # Common Development and Distribution License (the "License").
      7 # You may not use this file except in compliance with the License.
      8 #
      9 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10 # or http://www.opensolaris.org/os/licensing.
     11 # See the License for the specific language governing permissions
     12 # and limitations under the License.
     13 #
     14 # When distributing Covered Code, include this CDDL HEADER in each
     15 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16 # If applicable, add the following below this CDDL HEADER, with the
     17 # fields enclosed by brackets "[]" replaced with your own identifying
     18 # information: Portions Copyright [yyyy] [name of copyright owner]
     19 #
     20 # CDDL HEADER END
     21 #
     22 # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     23 # Use is subject to license terms.
     24 #
     25 
     26 PATH="/usr/bin:/usr/sbin:${PATH}"
     27 export PATH
     28 
     29 while read src dest; do
     30 	if [ ! -f $dest ]; then
     31 		cp -p $src $dest
     32 		continue;
     33 	fi
     34 
     35 	newdest=/tmp/i.logindevperm.$$
     36 	cat /dev/null > $newdest
     37 
     38 	while read line; do
     39 		# if not an entry, just print as is and move to next record
     40 		entry=`echo "$line" | egrep "^[# 	]*/[a-zA-Z0-9\/]+[ 	]+[0-9]+[ 	]+"`
     41 		if [ -z "$entry" ]; then
     42 			echo "$line"
     43 			continue
     44 		fi
     45 
     46 		# extract 'devices' field
     47 		devices=`echo "$line" | awk '{print $3}'`
     48 		if [ -z "$devices" ]; then
     49 			echo "$line"
     50 			continue
     51 		fi
     52 
     53 		# extract 'drivers' field
     54 		drivers=`echo "$line" | awk '{print $4}'`
     55 		found_driver=`echo "$drivers" | egrep "^driver="`
     56 		if [ -z "$found_driver" ]; then
     57 			drivers=""
     58 		fi
     59 
     60 		devices=`echo "$devices" | sed 's/\[/\\\[/g' | sed 's/\]/\\\]/g' | sed 's/\+/\\\+/g' | sed 's/\*/\\\*/g'`
     61 
     62 		# if dest has an entry for these devices and the difference
     63 		# between dest entry and src entry is not only
     64 		# "/dev/console" vs. "/dev/vt/active", preserve dest entry
     65 		dest_entry=`egrep "^[# 	]*/[a-zA-Z0-9\/]+[ 	]+[0-9]+[ 	]+$devices[ 	]*$drivers" $dest | tail -1 2>/dev/null`
     66 		tmp_line=`echo "$line" | sed 's:/dev/vt/active:/dev/console:'`
     67 
     68 		if [ -n "$dest_entry" ] && [ "$dest_entry" != "$tmp_line" ]; then
     69 			echo "$dest_entry"
     70 		else
     71 			echo "$line"
     72 		fi
     73 	done < $src > $newdest
     74 
     75 	# now carry over user's own entries
     76 	while read line; do
     77 		# skip non-entries
     78 		entry=`echo "$line" | egrep "^[# 	]*/[a-zA-Z0-9\/]+[ 	]+[0-9]+[ 	]+"`
     79 		if [ -z "$entry" ]; then
     80 			continue
     81 		fi
     82 
     83 		# extract 'devices' field
     84 		devices=`echo "$line" | awk '{print $3}'`
     85 		if [ -z "$devices" ]; then
     86 			continue
     87 		fi
     88 
     89 		# extract 'drivers' field
     90 		drivers=`echo "$line" | awk '{print $4}'`
     91 		found_driver=`echo "$drivers" | egrep "^driver="`
     92 		if [ -z "$found_driver" ]; then
     93 			drivers=""
     94 		fi
     95 
     96 		devices=`echo "$devices" | sed 's/\[/\\\[/g' | sed 's/\]/\\\]/g' | sed 's/\+/\\\+/g' | sed 's/\*/\\\*/g'`
     97 
     98 		# if dest has an entry for these devices, preserve that
     99 		dest_entry=`egrep "^[# 	]*/[a-zA-Z0-9\/]+[ 	]+[0-9]+[ 	]+"$devices"[ 	]*"$drivers"" $newdest | tail -1 2>/dev/null`
    100 		if [ -z "$dest_entry" ]; then
    101 			echo "$line"
    102 		fi
    103 	done < $dest >> $newdest
    104 
    105 	cp $newdest $dest
    106 	rm -f $newdest
    107 done
    108 
    109 exit 0
    110