Finding the user-exits of a SAP transaction code

 Finding the user-exits of a SAP transaction code
*
* Enter the transaction code in which you are looking for the user-exit
* and it will list you the list of user-exits in the transaction code.
* Also a drill down is possible which will help you to branch to SMOD.
report zuserexit no standard page heading.
tables : tstc, tadir, modsapt, modact, trdir, tfdir, enlfdir.
        tables : tstct.
data : jtab like tadir occurs 0 with header line.
data : field1(30).
data : v_devclass like tadir-devclass.
parameters : p_tcode like tstc-tcode obligatory.

select single * from tstc where tcode eq p_tcode.
if sy-subrc eq 0.
  select single * from tadir where pgmid = 'R3TR'
                   and object = 'PROG'
                   and obj_name = tstc-pgmna.
  move : tadir-devclass to v_devclass.
     if sy-subrc ne 0.
        select single * from trdir where name = tstc-pgmna.
        if trdir-subc eq 'F'.
           select single * from tfdir where pname = tstc-pgmna.
           select single * from enlfdir where funcname =
           tfdir-funcname.
           select single * from tadir where pgmid = 'R3TR'
                              and object = 'FUGR'
                              and obj_name eq enlfdir-area.

           move : tadir-devclass to v_devclass.
         endif.
      endif.
      select * from tadir into table jtab
                    where pgmid = 'R3TR'
                      and object = 'SMOD'
                      and devclass = v_devclass.
       select single * from tstct where sprsl eq sy-langu and
                                        tcode eq p_tcode.
       format color col_positive intensified off.
       write:/(19) 'Transaction Code - ',
            20(20) p_tcode,
            45(50) tstct-ttext.
                   skip.
       if not jtab[] is initial.
          write:/(95) sy-uline.
          format color col_heading intensified on.
          write:/1 sy-vline,
                 2 'Exit Name',
                21 sy-vline ,
                22 'Description',
                95 sy-vline.
          write:/(95) sy-uline.
          loop at jtab.
             select single * from modsapt
                    where sprsl = sy-langu and
                           name = jtab-obj_name.
                  format color col_normal intensified off.
                  write:/1 sy-vline,
                         2 jtab-obj_name hotspot on,
                        21 sy-vline ,
                        22 modsapt-modtext,
                        95 sy-vline.
          endloop.
          write:/(95) sy-uline.
          describe table jtab.
          skip.
          format color col_total intensified on.
          write:/ 'No of Exits:' , sy-tfill.
       else.
          format color col_negative intensified on.
          write:/(95) 'No User Exit exists'.
       endif.
     else.
         format color col_negative intensified on.
         write:/(95) 'Transaction Code Does Not Exist'.
     endif.

at line-selection.
  get cursor field field1.
  check field1(4) eq 'JTAB'.
  set parameter id 'MON' field sy-lisel+1(10).
  call transaction 'SMOD' and skip first   screen.

*---End of Program