(CommandList
  children: [
    (If
      arms: [
        (if_arm
          cond: [
            (Sentence
              child: (C {(Lit_Other '[')} {(-r)} {(/etc/defaults/rc.conf)} {(Lit_Other ']')})
              terminator: <Op_Semi ';'>
            )
          ]
          action: [(C {(.)} {(/etc/defaults/rc.conf)}) (C {(source_rc_confs)})]
          spids: [-1 160]
        )
        (if_arm
          cond: [
            (Sentence
              child: (C {(Lit_Other '[')} {(-r)} {(/etc/rc.conf)} {(Lit_Other ']')})
              terminator: <Op_Semi ';'>
            )
          ]
          action: [(C {(.)} {(/etc/rc.conf)})]
          spids: [170 181]
        )
      ]
      spids: [-1 188]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:EDITOR)
          op: Equal
          rhs: 
            {
              (BracedVarSub
                token: <VSub_Name EDITOR>
                suffix_op: 
                  (StringUnary
                    op_id: VTest_ColonHyphen
                    arg_word: {(Lit_Slash /) (usr) (Lit_Slash /) (bin) (Lit_Slash /) (vi)}
                  )
                spids: [192 201]
              )
            }
          spids: [191]
        )
      ]
      spids: [191]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:PAGER)
          op: Equal
          rhs: 
            {
              (BracedVarSub
                token: <VSub_Name PAGER>
                suffix_op: 
                  (StringUnary
                    op_id: VTest_ColonHyphen
                    arg_word: {(Lit_Slash /) (usr) (Lit_Slash /) (bin) (Lit_Slash /) (more)}
                  )
                spids: [204 213]
              )
            }
          spids: [203]
        )
      ]
      spids: [203]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:tempfoo)
          op: Equal
          rhs: 
            {
              (CommandSubPart
                command_list: (CommandList children:[(C {(basename)} {($ VSub_Number '$0')})])
                left_token: <Left_Backtick '`'>
                spids: [217 221]
              )
            }
          spids: [216]
        )
      ]
      spids: [216]
    )
    (AndOr
      children: [
        (Assignment
          keyword: Assign_None
          pairs: [
            (assign_pair
              lhs: (LhsName name:TMPFILE)
              op: Equal
              rhs: 
                {
                  (CommandSubPart
                    command_list: 
                      (CommandList
                        children: [(C {(mktemp)} {(-t)} {(${ VSub_Name tempfoo)})]
                      )
                    left_token: <Left_Backtick '`'>
                    spids: [224 232]
                  )
                }
              spids: [223]
            )
          ]
          spids: [223]
        )
        (C {(exit)} {(1)})
      ]
      op_id: Op_DPipe
    )
    (FuncDef
      name: get_yes_no
      body: 
        (BraceGroup
          children: [
            (While
              cond: [(C {(true)})]
              body: 
                (DoGroup
                  children: [
                    (C {(echo)} {(-n)} {(DQ ($ VSub_Number '$1') (' (Y/N) ? '))})
                    (C {(read)} {(-t)} {(30)} {(a)})
                    (If
                      arms: [
                        (if_arm
                          cond: [
                            (Sentence
                              child: 
                                (C {(Lit_Other '[')} {($ VSub_QMark '$?')} 
                                  {(KW_Bang '!') (Lit_Other '=')} {(0)} {(Lit_Other ']')}
                                )
                              terminator: <Op_Semi ';'>
                            )
                          ]
                          action: [
                            (Sentence
                              child: 
                                (Assignment
                                  keyword: Assign_None
                                  pairs: [
                                    (assign_pair
                                      lhs: (LhsName name:a)
                                      op: Equal
                                      rhs: {(DQ (No))}
                                      spids: [293]
                                    )
                                  ]
                                  spids: [293]
                                )
                              terminator: <Op_Semi ';'>
                            )
                            (Sentence
                              child: (ControlFlow token:<ControlFlow_Return return>)
                              terminator: <Op_Semi ';'>
                            )
                          ]
                          spids: [-1 290]
                        )
                      ]
                      spids: [-1 304]
                    )
                    (Case
                      to_match: {($ VSub_Name '$a')}
                      arms: [
                        (case_arm
                          pat_list: [{(Lit_Other '[') (Yy) (Lit_Other ']')}]
                          action: [
                            (Sentence
                              child: 
                                (Assignment
                                  keyword: Assign_None
                                  pairs: [
                                    (assign_pair
                                      lhs: (LhsName name:a)
                                      op: Equal
                                      rhs: {(DQ (Yes))}
                                      spids: [319]
                                    )
                                  ]
                                  spids: [319]
                                )
                              terminator: <Op_Semi ';'>
                            )
                            (ControlFlow
                              token: <ControlFlow_Return return>
                            )
                          ]
                          spids: [314 317 327 -1]
                        )
                        (case_arm
                          pat_list: [{(Lit_Other '[') (Nn) (Lit_Other ']')}]
                          action: [
                            (Sentence
                              child: 
                                (Assignment
                                  keyword: Assign_None
                                  pairs: [
                                    (assign_pair
                                      lhs: (LhsName name:a)
                                      op: Equal
                                      rhs: {(DQ (No))}
                                      spids: [335]
                                    )
                                  ]
                                  spids: [335]
                                )
                              terminator: <Op_Semi ';'>
                            )
                            (ControlFlow
                              token: <ControlFlow_Return return>
                            )
                          ]
                          spids: [330 333 343 -1]
                        )
                        (case_arm
                          pat_list: [{(Lit_Other '*')}]
                          spids: [346 347 348 -1]
                        )
                      ]
                      spids: [307 311 351]
                    )
                  ]
                  spids: [253 354]
                )
            )
          ]
          spids: [245]
        )
      spids: [241 244]
    )
    (FuncDef
      name: restore_rules
      body: 
        (BraceGroup
          children: [
            (SimpleCommand
              words: [{(nohup)} {(sh)} {(${ VSub_Name firewall_script)}]
              redirects: [
                (Redir op_id:Redir_Less fd:-1 arg_word:{(/dev/null)} spids:[374])
                (Redir op_id:Redir_Great fd:-1 arg_word:{(/dev/null)} spids:[377])
                (Redir op_id:Redir_GreatAnd fd:2 arg_word:{(1)} spids:[380])
              ]
            )
            (C {(rm)} {(${ VSub_Name TMPFILE)})
            (C {(exit)} {(1)})
          ]
          spids: [363]
        )
      spids: [359 362]
    )
    (Case
      to_match: {(DQ (${ VSub_Name firewall_type))}
      arms: [
        (case_arm
          pat_list: [
            {(Lit_Other '[') (Cc) (Lit_Other ']') (Lit_Other '[') (Ll) (Lit_Other ']') (Lit_Other '[') 
              (Ii) (Lit_Other ']') (Lit_Other '[') (Ee) (Lit_Other ']') (Lit_Other '[') (Nn) (Lit_Other ']') (Lit_Other '[') 
              (Tt) (Lit_Other ']')
            }
            {(Lit_Other '[') (Cc) (Lit_Other ']') (Lit_Other '[') (Ll) (Lit_Other ']') (Lit_Other '[') 
              (Oo) (Lit_Other ']') (Lit_Other '[') (Ss) (Lit_Other ']') (Lit_Other '[') (Ee) (Lit_Other ']') (Lit_Other '[') 
              (Dd) (Lit_Other ']')
            }
            {(Lit_Other '[') (Oo) (Lit_Other ']') (Lit_Other '[') (Pp) (Lit_Other ']') (Lit_Other '[') 
              (Ee) (Lit_Other ']') (Lit_Other '[') (Nn) (Lit_Other ']')
            }
            {(Lit_Other '[') (Ss) (Lit_Other ']') (Lit_Other '[') (Ii) (Lit_Other ']') (Lit_Other '[') 
              (Mm) (Lit_Other ']') (Lit_Other '[') (Pp) (Lit_Other ']') (Lit_Other '[') (Ll) (Lit_Other ']') (Lit_Other '[') 
              (Ee) (Lit_Other ']')
            }
            {(Lit_Other '[') (Uu) (Lit_Other ']') (Lit_Other '[') (Nn) (Lit_Other ']') (Lit_Other '[') 
              (Kk) (Lit_Other ']') (Lit_Other '[') (Nn) (Lit_Other ']') (Lit_Other '[') (Oo) (Lit_Other ']') (Lit_Other '[') 
              (Ww) (Lit_Other ']') (Lit_Other '[') (Nn) (Lit_Other ']')
            }
          ]
          action: [
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:edit_file)
                  op: Equal
                  rhs: {(DQ (${ VSub_Name firewall_script))}
                  spids: [506]
                )
              ]
              spids: [506]
            )
            (Assignment
              keyword: Assign_None
              pairs: [(assign_pair lhs:(LhsName name:rules_edit) op:Equal rhs:{(no)} spids:[514])]
              spids: [514]
            )
          ]
          spids: [408 503 518 -1]
        )
        (case_arm
          pat_list: [{(Lit_Other '*')}]
          action: [
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (C {(Lit_Other '[')} {(-r)} {(DQ (${ VSub_Name firewall_type))} {(Lit_Other ']')})
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (LhsName name:edit_file)
                          op: Equal
                          rhs: {(DQ (${ VSub_Name firewall_type))}
                          spids: [542]
                        )
                      ]
                      spids: [542]
                    )
                    (Assignment
                      keyword: Assign_None
                      pairs: [
                        (assign_pair
                          lhs: (LhsName name:rules_edit)
                          op: Equal
                          rhs: {(yes)}
                          spids: [550]
                        )
                      ]
                      spids: [550]
                    )
                  ]
                  spids: [-1 539]
                )
              ]
              spids: [-1 554]
            )
          ]
          spids: [520 521 557 -1]
        )
      ]
      spids: [398 406 559]
    )
    (If
      arms: [
        (if_arm
          cond: [
            (Sentence
              child: (C {(Lit_Other '[')} {(-f)} {(${ VSub_Name edit_file) (.new)} {(Lit_Other ']')})
              terminator: <Op_Semi ';'>
            )
          ]
          action: [
            (C {(get_yes_no)} {(DQ ('A new rules file already exists, do you want to use it'))})
            (AndOr
              children: [
                (C {(Lit_Other '[')} {($ VSub_Name '$a')} {(Lit_Other '=')} {(SQ <No>)} {(Lit_Other ']')})
                (C {(cp)} {(${ VSub_Name edit_file)} {(${ VSub_Name edit_file) (.new)})
              ]
              op_id: Op_DAmp
            )
          ]
          spids: [-1 576]
        )
      ]
      else_action: [(C {(cp)} {(${ VSub_Name edit_file)} {(${ VSub_Name edit_file) (.new)})]
      spids: [611 626]
    )
    (C {(trap)} {(restore_rules)} {(SIGHUP)})
    (C {(${ VSub_Name EDITOR)} {(${ VSub_Name edit_file) (.new)})
    (C {(get_yes_no)} {(DQ ('Do you want to install the new rules'))})
    (AndOr
      children: [
        (C {(Lit_Other '[')} {($ VSub_Name '$a')} {(Lit_Other '=')} {(SQ <No>)} {(Lit_Other ']')})
        (C {(exit)} {(1)})
      ]
      op_id: Op_DAmp
    )
    (SimpleCommand
      words: [{(cat)}]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: 
            {
              (DQ ("The rules will be changed now. If the message 'Type y to keep the new\n") 
                ("rules' does not appear on the screen or the y key is not pressed in 30\n") ('seconds, the original rules will be restored.\n') 
                ('The TCP/IP connections might be broken during the change. If so, restore\n') ('the ssh/telnet connection being used.\n')
              )
            }
          do_expansion: True
          here_end: '!'
          was_filled: True
          spids: [674]
        )
      ]
    )
    (If
      arms: [
        (if_arm
          cond: [
            (Sentence
              child: 
                (C {(Lit_Other '[')} {(${ VSub_Name rules_edit)} {(Lit_Other '=')} {(yes)} 
                  {(Lit_Other ']')}
                )
              terminator: <Op_Semi ';'>
            )
          ]
          action: [
            (SimpleCommand
              words: [
                {(nohup)}
                {(sh)}
                {(${ VSub_Name firewall_script)}
                {(${ VSub_Name firewall_type) (.new)}
              ]
              redirects: [
                (Redir op_id:Redir_Less fd:-1 arg_word:{(/dev/null)} spids:[717])
                (Redir
                  op_id: Redir_Great
                  fd: -1
                  arg_word: {(${ VSub_Name TMPFILE)}
                  spids: [721]
                )
                (Redir op_id:Redir_GreatAnd fd:2 arg_word:{(1)} spids:[727])
              ]
            )
          ]
          spids: [-1 699]
        )
      ]
      else_action: [
        (SimpleCommand
          words: [{(nohup)} {(sh)} {(${ VSub_Name firewall_script) (.new)}]
          redirects: [
            (Redir op_id:Redir_Less fd:-1 arg_word:{(/dev/null)} spids:[744])
            (Redir op_id:Redir_Great fd:-1 arg_word:{(${ VSub_Name TMPFILE)} spids:[748])
            (Redir op_id:Redir_GreatAnd fd:2 arg_word:{(1)} spids:[754])
          ]
        )
      ]
      spids: [730 757]
    )
    (Sentence child:(C {(sleep)} {(2)}) terminator:<Op_Semi ';'>)
    (C {(get_yes_no)} {(DQ ('Would you like to see the resulting new rules'))})
    (AndOr
      children: [
        (C {(Lit_Other '[')} {($ VSub_Name '$a')} {(Lit_Other '=')} {(SQ <Yes>)} {(Lit_Other ']')})
        (C {(${ VSub_Name PAGER)} {(${ VSub_Name TMPFILE)})
      ]
      op_id: Op_DAmp
    )
    (C {(get_yes_no)} {(DQ ('Type y to keep the new rules'))})
    (AndOr
      children: [
        (C {(Lit_Other '[')} {($ VSub_Name '$a')} {(KW_Bang '!') (Lit_Other '=')} {(SQ <Yes>)} 
          {(Lit_Other ']')}
        )
        (C {(restore_rules)})
      ]
      op_id: Op_DAmp
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:DATE)
          op: Equal
          rhs: 
            {
              (CommandSubPart
                command_list: (CommandList children:[(C {(date)} {(DQ ('+%Y%m%d%H%M'))})])
                left_token: <Left_Backtick '`'>
                spids: [817 823]
              )
            }
          spids: [816]
        )
      ]
      spids: [816]
    )
    (C {(cp)} {(${ VSub_Name edit_file)} {(${ VSub_Name edit_file) (.) ($ VSub_Name '$DATE')})
    (C {(mv)} {(${ VSub_Name edit_file) (.new)} {(${ VSub_Name edit_file)})
    (SimpleCommand
      words: [{(cat)}]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: 
            {
              (DQ ('The new rules are now installed. The previous rules have been preserved in\n') 
                ('the file ') (${ VSub_Name edit_file) (.) ($ VSub_Name '$DATE') ('\n')
              )
            }
          do_expansion: True
          here_end: '!'
          was_filled: True
          spids: [851]
        )
      ]
    )
    (Pipeline
      children: [
        (C {(diff)} {(-F)} {(DQ ('^# .*[A-Za-z]'))} {(-u)} 
          {(${ VSub_Name edit_file) (.) ($ VSub_Name '$DATE')} {(${ VSub_Name edit_file)}
        )
        (C {(mail)} {(-s)} 
          {
            (DQ 
              (CommandSubPart
                command_list: (CommandList children:[(C {(hostname)})])
                left_token: <Left_Backtick '`'>
                spids: [892 894]
              ) (' Firewall rule change')
            )
          } {(root)}
        )
      ]
      negated: False
    )
    (C {(rm)} {(${ VSub_Name TMPFILE)})
    (C {(exit)} {(0)})
  ]
)