1#! /bin/sh
2#	$NetBSD: msg_cmp.sh,v 1.2 2019/06/11 15:31:19 martin Exp $
3
4#-
5# Copyright (c) 2019 The NetBSD Foundation, Inc.
6# All rights reserved.
7#
8# This code is derived from software contributed to The NetBSD Foundation.
9#
10# Redistribution and use in source and binary forms, with or without
11# modification, are permitted provided that the following conditions
12# are met:
13# 1. Redistributions of source code must retain the above copyright
14#    notice, this list of conditions and the following disclaimer.
15# 2. Redistributions in binary form must reproduce the above copyright
16#    notice, this list of conditions and the following disclaimer in the
17#    documentation and/or other materials provided with the distribution.
18#
19# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29# POSSIBILITY OF SUCH DAMAGE.
30#
31
32
33# Compare two (binary) sysinst msg files and report identical messages.
34# Used to find untranslated strings.
35
36usage()
37{
38	echo "usage: msg_cmp.sh msg_defs.h file1 file2" >&2
39	exit 1
40}
41
42[ "$#" = 3 ] || usage
43
44msg_defs=$1
45msg_long="((msg)(long)"
46close_paren=")"
47
48TMP1=/tmp/mct1.$$
49TMP2=/tmp/mct2.$$
50inp1=$2
51inp2=$3
52
53# Read header file and set up map of message names to numbers
54
55exec <$msg_defs || exit 2
56
57while read define MSG_name number rest
58do
59	[ -z "$number" -o -n "$rest" ] && continue
60	[ "$define" = "#define" ] || continue
61	name="${MSG_name#MSG_}"
62	[ "$name" = "${MSG_name}" ] && continue
63	msg_number="${number#$msg_long}"
64	[ "$msg_number" = "$number" ] && continue
65	msg_number="${msg_number%$close_paren}"
66
67	varname=MSGNAME_$msg_number
68	eval $varname=$name
69done
70
71# Make the sysinst binary message files usable with text tools
72set -- $(tr '\000' '\n' < $inp1); off1=$(( $(( $2 + 2 )) \* 8 ))
73set -- $(tr '\000' '\n' < $inp2); off2=$(( $(( $2 + 2 )) \* 8 ))
74dd bs=1 skip=$off1 if=$inp1 2>/dev/null | tr '\n' '~' | tr '\000' '\n' > $TMP1
75dd bs=1 skip=$off2 if=$inp2 2>/dev/null | tr '\n' '~' | tr '\000' '\n' > $TMP2
76
77# Open both input files
78exec 3< $TMP1 
79exec 4< $TMP2
80
81# Compare lines
82IFS=''
83NUM=0
84HDR="Messages identical to the English version:"
85
86while
87	read -r l1 <&3 && read -r l2 <&4
88do
89	NUM=$(( $NUM + 1 ))
90	if [ "$l1" != "$l2" ]; then
91		continue
92	fi
93	[ -z "$hdr_done" ] && hdr_done=1 && printf "%s\n" $HDR
94	varname=MSGNAME_$NUM
95	eval $( printf "msg=$%s" $varname )
96	printf "%s (%d):\t%s\n" $msg $NUM $l1
97done
98
99rm $TMP1 $TMP2
100
101