(CommandList
  children: [
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:tid)
          op: Equal
          rhs: {(DQ ('sshd version with different protocol combinations'))}
          spids: [7]
        )
      ]
      spids: [7]
    )
    (FuncDef
      name: check_version
      body: 
        (BraceGroup
          children: [
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:version)
                  op: Equal
                  rhs: {($ VSub_Number '$1')}
                  spids: [24]
                )
              ]
              spids: [24]
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:expect)
                  op: Equal
                  rhs: {($ VSub_Number '$2')}
                  spids: [28]
                )
              ]
              spids: [28]
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:banner)
                  op: Equal
                  rhs: 
                    {
                      (CommandSubPart
                        command_list: 
                          (CommandList
                            children: [
                              (Pipeline
                                children: [
                                  (C {(printf)} {(SQ )})
                                  (C {(${ VSub_Name SSHD)} {(-o)} 
                                    {(DQ ('Protocol=') (${ VSub_Name version))} {(-i)} {(-f)} {(${ VSub_Name OBJ) (/sshd_proxy)}
                                  )
                                ]
                                negated: False
                              )
                            ]
                          )
                        left_token: <Left_Backtick '`'>
                        spids: [33 62]
                      )
                    }
                  spids: [32]
                )
              ]
              spids: [32]
            )
            (Case
              to_match: {(${ VSub_Name banner)}
              arms: [
                (case_arm
                  pat_list: [{(SSH-1.99-) (Lit_Other '*')}]
                  action: [
                    (Assignment
                      keyword: Assign_None
                      pairs: [(assign_pair lhs:(LhsName name:proto) op:Equal rhs:{(199)} spids:[79])]
                      spids: [79]
                    )
                  ]
                  spids: [74 76 83 -1]
                )
                (case_arm
                  pat_list: [{(SSH-2.0-) (Lit_Other '*')}]
                  action: [
                    (Assignment
                      keyword: Assign_None
                      pairs: [(assign_pair lhs:(LhsName name:proto) op:Equal rhs:{(20)} spids:[91])]
                      spids: [91]
                    )
                  ]
                  spids: [86 88 95 -1]
                )
                (case_arm
                  pat_list: [{(SSH-1.5-) (Lit_Other '*')}]
                  action: [
                    (Assignment
                      keyword: Assign_None
                      pairs: [(assign_pair lhs:(LhsName name:proto) op:Equal rhs:{(15)} spids:[103])]
                      spids: [103]
                    )
                  ]
                  spids: [98 100 107 -1]
                )
                (case_arm
                  pat_list: [{(Lit_Other '*')}]
                  action: [
                    (Assignment
                      keyword: Assign_None
                      pairs: [(assign_pair lhs:(LhsName name:proto) op:Equal rhs:{(0)} spids:[114])]
                      spids: [114]
                    )
                  ]
                  spids: [110 111 118 -1]
                )
              ]
              spids: [65 71 121]
            )
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (C {(Lit_Other '[')} {(${ VSub_Name expect)} {(-ne)} {(${ VSub_Name proto)} 
                          {(Lit_Other ']')}
                        )
                      terminator: <Op_Semi ';'>
                    )
                  ]
                  action: [
                    (C {(fail)} 
                      {
                        (DQ ('wrong protocol version ') (${ VSub_Name banner) (' for ') 
                          (${ VSub_Name version)
                        )
                      }
                    )
                  ]
                  spids: [-1 141]
                )
              ]
              spids: [-1 158]
            )
          ]
          spids: [21]
        )
      spids: [16 20]
    )
    (C {(check_version)} {(2)} {(20)})
    (If
      arms: [
        (if_arm
          cond: [(Sentence child:(C {(ssh_version)} {(1)}) terminator:<Op_Semi ';'>)]
          action: [
            (C {(check_version)} {(2) (Lit_Comma ',') (1)} {(199)})
            (C {(check_version)} {(1) (Lit_Comma ',') (2)} {(199)})
            (C {(check_version)} {(1)} {(15)})
          ]
          spids: [-1 176]
        )
      ]
      spids: [-1 203]
    )
  ]
)