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|
#!/bin/sh
#
# $NetBSD: mozilla-rootcerts.sh,v 1.1.1.1 2007/09/20 20:02:53 jlam Exp $
#
# This script is meant to be used as follows:
#
# # cd /etc/openssl/certs
# # mozilla-rootcerts extract
# # mozilla-rootcerts rehash
#
: ${AWK=@AWK@}
: ${ECHO=@ECHO@}
: ${EXPR=@EXPR@}
: ${LN=@LN@}
: ${LS=@LS@}
: ${OPENSSL=@OPENSSL@}
: ${RM=@RM@}
self="mozilla-rootcerts"
certfile="@DATADIR@/certdata.txt"
usage()
{
${ECHO} 1>&2 "usage: $self [-f certfile] extract|rehash"
exit $1
}
while [ $# -gt 0 ]; do
case "$1" in
-f) certfile="$2"; shift 2 ;;
--) shift; break ;;
-*) ${ECHO} 1>&2 "$self: unknown option -- $1"
usage 128 ;;
*) break ;;
esac
done
[ $# -eq 1 ] || usage 128
action="$1"; shift
#
# link_hash pemtype pemfile
#
# Link a certificate or CRL to its subject name hash value.
# Each hash is of the form <hash>.<n> for certificates and
# <hash>.r<n> for CRLs, where n is an integer. If the hash
# value already exists, then we need to up the value of n, unless
# it's a duplicate, in which case we skip the link. We check
# for duplicates by comparing fingerprints.
#
link_hash()
{
_pemtype="$1"; _pemfile="$2"; shift 2
_hash=`${OPENSSL} "$_pemtype" -hash -noout -in "$_pemfile"`
_fprint=`${OPENSSL} "$_pemtype" -fingerprint -noout -in "$_pemfile"`
_suffix=0
while [ 1 = 1 ] ; do
case $_pemtype in
crl) _hashfile="$_hash.r$_suffix" ;;
x509|*) _hashfile="$_hash.$_suffix" ;;
esac
if [ ! -f "$_hashfile" ]; then
${ECHO} "$_pemfile => $_hashfile"
${LN} -sf "$_pemfile" "$_hashfile"
break
fi
_fprintold=`${OPENSSL} "$_pemtype" -fingerprint -noout -in "$_hashfile"`
if [ "$_fprint" = "$_fprintold" ]; then
${ECHO} 1>&2 "WARNING: Skipping duplicate certificate $_pemfile"
return
fi
suffix=`${EXPR} $suffix + 1`
done
}
case $action in
rehash)
# Delete any existing symbolic links.
${LS} | while read entry; do
[ ! -h "$entry" ] || ${RM} -f "$entry"
done
${LS} | while read pemfile; do
case $pemfile in
*.pem) ;;
*) continue ;;
esac
pemtype=
while read line; do
case $line in
"-----BEGIN CERTIFICATE-----"|\
"-----BEGIN X509 CERTIFICATE-----"|\
"-----BEGIN TRUSTED CERTIFICATE-----")
pemtype=x509
break
;;
"-----BEGIN X509 CRL-----")
pemtype=crl
break
;;
esac
done < "$pemfile"
case $pemtype in
x509|crl)
link_hash "$pemtype" "$pemfile"
;;
*)
${ECHO} 1>&2 "WARNING: $pemfile does not contain a certificate or CRL: skipping"
continue
;;
esac
done
;;
extract)
#
# Certificates in octal-encoded DER format are delimited by
# "CKA_VALUE MULTILINE_OCTAL"/"END" pairs. Convert them into
# long character strings and pipe them through openssl to
# convert from DER to PEM format.
#
# The resulting PEM format certificates are saved as
# "mozilla-rootcert-<n>.pem" in the current working directory.
#
cat "$certfile" | ${AWK} -v OPENSSL=${OPENSSL} '
function join(array, start, end, separator, result, i) {
result = array[start]
for (i = start + 1; i <= end; i++)
result = result separator array[i]
return result
}
function base8to10(o, octal, decimal, power, i, n) {
decimal = 0
n = split(o, octal, "")
while (n > 0) {
power = 1
for (i = 1; i < n; i++)
power *= 8
decimal += octal[4-n] * power
n--
}
return decimal
}
BEGIN {
filenum = 0
while (getline) {
D = 0
if ($0 !~ /^CKA_VALUE MULTILINE_OCTAL/) continue
filename = "mozilla-rootcert-" filenum ".pem"
filenum++
cmd = OPENSSL " x509 -inform der -outform pem -text >" filename
print filename
while (getline) {
if ($0 ~ /^END/) break
n = split($0, line, "\\")
for (i = 2; i <= n; i++) {
der[D++] = sprintf("%c", base8to10(line[i]))
}
}
printf("%s", join(der, 0, D, "")) | cmd
close(cmd)
}
}'
;;
esac
|
