    SL_INVALID_FUNCTION   60 socloc/sliocode.c       case SL_INVALID_FUNCTION:
    SL_INVALID_FUNCTION  580 source/socloc.c       (void)do_reply_code(SL_INVALID_FUNCTION);
    SL_INVALID_FUNCTION  598 source/socloc.c       (void)do_reply_code(SL_INVALID_FUNCTION);
    SL_INVALID_FUNCTION  721 source/socloc.c          (void)do_reply_code(SL_INVALID_FUNCTION);
    SL_INVALID_FUNCTION 2156 source/socloc.c       (void)do_reply_code(SL_INVALID_FUNCTION);
    SL_INVALID_FUNCTION 2284 source/socloc.c       return(SL_INVALID_FUNCTION);