ca-certificates/sbin/update-ca-certificates

#!/bin/sh -e
#
# update-ca-certificates
#
# Copyright (c) 2003 Fumitoshi UKAI <ukai@debian.or.jp>
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

verbose=0
fresh=0
while [ $# -gt 0 ];
do
  case $1 in
  --verbose|-v)
  	verbose=1;;
  --fresh|-f)
	fresh=1;;
  --help|-h|*)
	echo "$0: [--verbose] [--fresh]"
	exit;;
  esac
  shift
done

CERTSCONF=/etc/ca-certificates.conf
CERTSDIR=/usr/share/ca-certificates
CERTBUNDLE=ca-certificates.crt
ETCCERTSDIR=/etc/ssl/certs
cd $ETCCERTSDIR
if [ "$fresh" = 1 ]; then
  echo -n "Clearing symlinks in $ETCCERTSDIR..."
  find . -type l -print | while read symlink
  do
     case $(readlink $symlink) in
     $CERTSDIR*) rm -f $symlink;;
     esac
  done
  find . -type l -print | while read symlink
  do
     test -f $symlink || rm -f $symlink
  done
  echo "done."
fi
echo -n "Updating certificates in $ETCCERTSDIR...."

bundletmp=`mktemp "${CERTBUNDLE}.tmp.XXXXXX"`
removed="$(sed -ne 's/^!//p' $CERTSCONF | while read crt
do
 if test "$crt" = ""; then continue; fi
 pem=$(basename "$crt" .crt).pem
 if test -e "$pem"; then
  rm -f "$pem"
  echo "-$ETCCERTSDIR/$pem"
 fi
done)"

added="$(sed -e '/^#/d' -e '/^!/d' $CERTSCONF | while read crt
do
 if test "$crt" = ""; then continue; fi
 if ! test -f "$CERTSDIR/$crt"; then continue; fi
 pem=$(basename "$crt" .crt).pem
 if ! test -e "$pem"; then echo "+$ETCCERTSDIR/$pem"; fi
 ln -sf "$CERTSDIR/$crt" "$pem"
 cat "$CERTSDIR/$crt" >> "$bundletmp"
done)"
chmod 0644 "$bundletmp"
mv -f "$bundletmp" "$CERTBUNDLE"

if [ -n "$added" ] || [ -n "$removed" ]; then
  # only run if set of files has changed

  if [ "$verbose" = 0 ]; then
    c_rehash . > /dev/null 2>&1
  else
    c_rehash .
  fi
  echo "done."

  HOOKSDIR=/etc/ca-certificates/update.d
  echo -n "Running hooks in $HOOKSDIR...."
  VERBOSE_ARG=
  [ "$verbose" = 0 ] || VERBOSE_ARG=--verbose
  eval run-parts $VERB_ARG --test -- $HOOKSDIR | while read hook; do
  printf -- "${removed:+$removed\n}${added:+$added\n}" | eval $hook
  done
  echo "done."
else
  echo "done."
fi