read_dist_list.abap

* try avoiding using class cl_distributionlist_bcs
* it causes strange dumps in concurrent situations
* instead do it "old style":
    CALL FUNCTION 'SO_DLI_READ'
      EXPORTING
        distributionlist           = iv_distlist
        system_dli                 = abap_true
      TABLES
        member                     = lt_member
        objpara                    = lt_objpara
        objparb                    = lt_objparb
      EXCEPTIONS
        active_user_not_exist      = 1
        communication_failure      = 2
        component_not_available    = 3
        dl_name_not_exist          = 4
        folder_not_exist           = 5
        folder_no_authorization    = 6
        forwarder_not_exist        = 7
        object_not_exist           = 8
        object_no_authorization    = 9
        operation_no_authorization = 10
        owner_not_exist            = 11
        parameter_error            = 12
        substitute_not_active      = 13
        substitute_not_defined     = 14
        system_failure             = 15
        user_not_exist             = 16
        x_error                    = 17
        OTHERS                     = 18.
    IF sy-subrc <> 0 OR lt_member[] IS INITIAL.