blob: cd419f2bd2f15ed9055a76b408a431a61aaa17c6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
#!/bin/sh
# Get the online version of the GnuPG software version database
# Copyright (C) 2014 Werner Koch
#
# This file is free software; as a special exception the author gives
# unlimited permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# The URL of the file to retrieve.
urlbase="https://versions.gnupg.org/"
WGET=wget
GPGV=gpgv
srcdir=$(dirname "$0")
distsigkey="$srcdir/../g10/distsigkey.gpg"
# Convert a 3 part version number it a numeric value.
cvtver () {
awk 'NR==1 {split($NF,A,".");X=1000000*A[1]+1000*A[2]+A[3];print X;exit 0}'
}
# Prints usage information.
usage()
{
cat <<EOF
Usage: $(basename $0) [OPTIONS]
Get the online version of the GnuPG software version database
Options:
--skip-download Assume download has already been done.
--skip-verify Do not check signatures
--skip-selfcheck Do not check GnuPG version
--find-sha1sum Print the name of the sha1sum utility
--find-sha256sum Print the name of the sha256sum utility
--help Print this help.
EOF
exit $1
}
#
# Parse options
#
skip_download=no
skip_verify=no
skip_selfcheck=no
find_sha1sum=no
find_sha256sum=no
while test $# -gt 0; do
case "$1" in
# Set up `optarg'.
--*=*)
optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'`
;;
*)
optarg=""
;;
esac
case $1 in
--help|-h)
usage 0
;;
--skip-download)
skip_download=yes
;;
--skip-verify)
skip_verify=yes
;;
--skip-selfcheck)
skip_selfcheck=yes
;;
--find-sha1sum)
find_sha1sum=yes
;;
--find-sha256sum)
find_sha256sum=yes
;;
*)
usage 1 1>&2
;;
esac
shift
done
# Mac OSX has only a shasum and not sha1sum
if [ ${find_sha1sum} = yes ]; then
for i in sha1sum shasum ; do
tmp=$($i </dev/null 2>/dev/null | cut -d ' ' -f1)
if [ x"$tmp" = x"da39a3ee5e6b4b0d3255bfef95601890afd80709" ]; then
echo "$i"
exit 0
fi
done
echo "false"
exit 1
fi
# Mac OSX has only a shasum and not sha256sum
if [ ${find_sha256sum} = yes ]; then
for i in 'shasum -a 256' sha256sum ; do
tmp=$($i </dev/null 2>/dev/null | cut -d ' ' -f1)
tmp2="e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
if [ x"$tmp" = x"$tmp2" ]; then
echo "$i"
exit 0
fi
done
echo "false"
exit 1
fi
# Get GnuPG version from VERSION file. For a GIT checkout this means
# that ./autogen.sh must have been run first. For a regular tarball
# VERSION is always available.
if [ ! -f "$srcdir/../VERSION" ]; then
echo "VERSION file missing - run autogen.sh first." >&2
exit 1
fi
version=$(cat "$srcdir/../VERSION")
version_num=$(echo "$version" | cvtver)
if [ $skip_verify = no ]; then
if ! $GPGV --version >/dev/null 2>/dev/null ; then
echo "command \"gpgv\" is not installed" >&2
echo "(please install an older version of GnuPG)" >&2
exit 1
fi
fi
#
# Download the list and verify.
#
if [ $skip_download = yes ]; then
if [ ! -f swdb.lst ]; then
echo "swdb.lst is missing." >&2
exit 1
fi
if [ $skip_verify = no ]; then
if [ ! -f swdb.lst.sig ]; then
echo "swdb.lst.sig is missing." >&2
exit 1
fi
fi
else
if ! $WGET --version >/dev/null 2>/dev/null ; then
echo "command \"wget\" is not installed" >&2
exit 1
fi
if ! $WGET -q -O swdb.lst "$urlbase/swdb.lst" ; then
echo "download of swdb.lst failed." >&2
exit 1
fi
if [ $skip_verify = no ]; then
if ! $WGET -q -O swdb.lst.sig "$urlbase/swdb.lst.sig" ; then
echo "download of swdb.lst.sig failed." >&2
exit 1
fi
fi
fi
if [ $skip_verify = no ]; then
if ! $GPGV --keyring "$distsigkey" swdb.lst.sig swdb.lst; then
echo "list of software versions is not valid!" >&2
exit 1
fi
fi
#
# Check that the online version of GnuPG is not less than this version
# to help detect rollback attacks.
#
if [ $skip_selfcheck = no ]; then
gnupg_ver=$(awk '$1=="gnupg22_ver" {print $2;exit}' swdb.lst)
if [ -z "$gnupg_ver" ]; then
echo "GnuPG 2.2 version missing in swdb.lst!" >&2
exit 1
fi
gnupg_ver_num=$(echo "$gnupg_ver" | cvtver)
if [ $(( $gnupg_ver_num >= $version_num )) = 0 ]; then
echo "GnuPG version in swdb.lst is less than this version!" >&2
echo " This version: $version" >&2
echo " SWDB version: $gnupg_ver" >&2
exit 1
fi
fi
|
