1#!/bin/sh
2#-
3# Copyright (c) 2011 Nathan Whitehorn
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9# 1. Redistributions of source code must retain the above copyright
10#    notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
12#    notice, this list of conditions and the following disclaimer in the
13#    documentation and/or other materials provided with the distribution.
14#
15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25# SUCH DAMAGE.
26#
27
28test -f $BSDINSTALL_DISTDIR/MANIFEST || exit 0
29
30BSDCFG_SHARE="/usr/share/bsdconfig"
31. $BSDCFG_SHARE/common.subr || exit 1
32
33dist_to_statusvar()
34{
35	printf 'status_'
36	echo "$1" | sed 's/_/__/g;s/\./_dot_/g;s/-/_dash_/g'
37}
38
39percentage=0
40for dist in $DISTRIBUTIONS; do
41	statusvar=$(dist_to_statusvar $dist)
42	eval "$statusvar=-8"
43
44	items=""
45	for i in $DISTRIBUTIONS; do
46		items="$items $i `eval echo \\\${$(dist_to_statusvar $i):--11}`"
47	done
48	bsddialog --backtitle "$OSNAME Installer" --title "Checksum Verification" \
49	    --mixedgauge "\nVerifying checksums of selected distributions.\n" \
50	    0 0 $percentage  -- $items
51
52	CK=`sha256 -q $BSDINSTALL_DISTDIR/$dist`
53	awk -v checksum=$CK -v dist=$dist -v found=0 '{
54		if (dist == $1) {
55			found = 1
56			if (checksum == $2)
57				exit(0)
58			else
59				exit(2)
60		}
61	} END {if (!found) exit(1);}' $BSDINSTALL_DISTDIR/MANIFEST
62
63	CK_VALID=$?
64	if [ $CK_VALID -le 1 ]; then
65		if [ $CK_VALID -eq 0 ]; then
66			eval "$statusvar=-3"
67		else
68			eval "$statusvar=-7"
69		fi
70		percentage=$(echo $percentage + 100/`echo $DISTRIBUTIONS | wc -w` | bc)
71	else
72		eval "$statusvar=-2"
73		case $(/bin/freebsd-version -u) in
74		*-ALPHA*|*-CURRENT|*-STABLE|*-PRERELEASE)
75			bsddialog --backtitle "$OSNAME Installer" --title "Error" \
76			    --msgbox "The checksum for $dist does not match. It may have become corrupted, or it may be from a newer version of $OSNAME. Please check for a newer snapshot." 0 0
77			;;
78		*)
79			bsddialog --backtitle "$OSNAME Installer" --title "Error" \
80			    --msgbox "The checksum for $dist does not match. It may have become corrupted, and should be redownloaded." 0 0
81			;;
82		esac
83		exit 1
84	fi
85done
86
87exit 0
88