VMS Help System Services, $SETDDIR  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Allows you to read and change the default directory string for
    the process.

    Format

      SYS$SETDDIR  [new-dir-addr] ,[length-addr] ,[cur-dir-addr]

    C Prototype

      int sys$setddir  (void *newdiraddr, unsigned short int

                       *lengthaddr, void *curdiraddr);

  Additional Information (explode) :

• Arguments