Add greylistd build.

source/greylistd/doinst.sh

@@ -0,0 +1,73 @@
+# Version: 0.3.5
+# Copyright (c) 2005-2022:
+#   Darren 'Tadgy' Austin <darren (at) afterdark.org.uk>
+# Licensed under the terms of the GNU General Public License version 3.
+
+install_file() {
+  # $1 = Path of file to process (without leading /, with .new extension)
+
+  [[ -z "$1" ]] || [[ ! -e "$1" ]] && return
+  local OLDFILE="${1%.new}"
+
+  if [[ ! -e "$OLDFILE" ]]; then
+    mv "$1" "$OLDFILE"
+  elif [[ -L "$OLDFILE" ]]; then
+    #     |--------|-----------------------------------------------------------|
+    echo "WARNING: $OLDFILE"
+    echo "         is a symbolic link - the incoming .new file was not written"
+    echo "         to it in order to prevent clobbering something important."
+    echo
+  elif [[ "$(md5sum <"$OLDFILE")" == "$(md5sum <"$1")" ]]; then
+    rm -f "$1"
+  else
+    #     |--------|-----------------------------------------------------------|
+    echo "WARNING: $OLDFILE"
+    echo "         has been customised since original installation and was not"
+    echo "         replaced with the incoming .new file."
+    echo
+  fi
+}
+
+# Install new configuration files.
+install_file "etc/default/greylistd.new"
+install_file "var/lib/greylistd/whitelist-hosts.new"
+
+# Add required user/group.
+GROUPNAME="mail"
+GROUPID="12"
+USERNAME="greylist"
+USERID="37"
+grep "^$GROUPNAME:" etc/group >/dev/null 2>&1 || {
+  if chroot . usr/sbin/groupadd -g "$GROUPID" -r "$GROUPNAME" && chroot . usr/sbin/grpconv; then
+    echo "NOTICE:  Added new system group: $GROUPNAME ($GROUPID)."
+  else
+    echo "WARNING: Failed to add required group: $GROUPNAME."
+  fi
+  echo
+}
+grep "^$USERNAME:" etc/passwd >/dev/null 2>&1 || {
+  if chroot . usr/sbin/useradd -d "/var/lib/greylistd" -g "$GROUPNAME" -M -N -r -s /bin/fbash -u "$USERID" "$USERNAME" && chroot . usr/sbin/pwconv; then
+    echo "NOTICE:  Added new system user: $USERNAME ($USERID)"
+  else
+    echo "WARNING: Failed to add required user: $USERNAME."
+  fi
+  echo
+}
+
+# Add service start to rc.local
+RC="rc.greylistd"
+fgrep "/etc/rc.d/$RC" etc/rc.d/rc.local >/dev/null 2>&1 || {
+  echo >>etc/rc.d/rc.local
+  echo "[[ -x /etc/rc.d/$RC ]] /etc/rc.d/$RC start" >>etc/rc.d/rc.local
+}
+
+# Add service shutdown to rc.local_shutdown
+fgrep "/etc/rc.d/$RC" etc/rc.d/rc.local_shutdown >/dev/null 2>&1 || {
+  # If rc.local_shutdown doesn't exist, create it.
+  [[ -e etc/rc.d/rc.local_shutdown ]] || {
+    echo "#!/bin/bash" >etc/rc.d/rc.local_shutdown
+    chmod 755 etc/rc.d/rc.local_shutdown
+  }
+  echo >>etc/rc.d/rc.local_shutdown
+  echo "[[ -x /etc/rc.d/$RC ]] && /etc/rc.d/$RC stop" >>etc/rc.d/rc.local_shutdown
+}