fail2ban: Added.

source/fail2ban/doinst.sh

@@ -0,0 +1,51 @@
+# 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: $OLDFILE"
+    echo "         has been customised since original installation and was not"
+    echo "         replaced with the incoming .new file."
+    echo
+  fi
+}
+
+# Install new configuration files.
+install_file "etc/bash_completion.d/fail2ban.new"
+install_file "etc/default/fail2ban.new"
+
+# Add service start to rc.local
+RC="rc.fail2ban"
+fgrep "/etc/rc.d/$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
+}