The mapper SHALL use the contents of the received LPD control file to
   create IPP operation attribute and job template attribute values to
   transmit with the Print-Job or Create-Job operation.

3.2.3 Receive data file

Sub-command syntax:  %x3 number-of-bytes-in-data-file Name-of-data-file

   receive-data-file = %x03 number-of-bytes SP name-of-data-file LF
   number-of-bytes = 1*DIGIT
   name-of-data-file = "df" letter job-number client-host-name
               ; e.g. "dfA123woden for the first file
   letter = %x41-5A /  %x61-7A    ;  "A" to "Z", "a" to "z"
                                  ;  first file is "A",
                                  ; second "B", and  52nd file is "z"
   job-number = 3DIGIT
   client-host-name = <a host name>

   This sub-command is roughly equivalent to the IPP Send-Document
   operation.

   The mapper SHALL use the contents of the received LPD data file as
   the data to transmit with the IPP Print-Job or Send-Document
   operation.

   Although RFC 1179 alludes to a method for passing an unspecified
   length data file by using an octet-count of zero, no implementations
   support this feature. The mapper SHALL reject a job that has a value
   of 0 in the number-of-bytes field.

3.3 Send queue state (short)

   Command syntax:

send-queue-short  = %x03 printer-name *(SP(user-name / job-number)) LF

   The mapper's response to this command includes information about the
   printer and its jobs. RFC 1179 specifies neither the information nor
   the format of its response. This document requires the mapper to
   follow existing practice as specified in this document.

   The mapper SHALL produce a response in the following format which
   consists of a printer-status line optionally followed by a heading
   line, and a list of jobs. This format is defined by examples below.
   Appendix A contains the ABNF syntax.




 
RFC 2569         Mapping between LPD and IPP Protocols        April 1999


   For an printer with no jobs, the response starts in column 1 and is:

      no entries

   For a printer with jobs, an example of the response is:

     killtree is ready and printing
     Rank   Owner      Job          Files             Total Size
     active fred       123          stuff             1204 bytes
     1st    smith      124          resume, foo       34576 bytes
     2nd    fred       125          more              99 bytes
     3rd    mary       126          mydoc             378 bytes
     4th    jones      127          statistics.ps     4567 bytes
     5th    fred       128          data.txt          9 bytes

   The column numbers of above headings and job entries are:

     |      |          |            |                 |
     01     08         19           35                63

   The mapper SHALL produce each field above from the following IPP
   attribute:

   LPD field IPP attribute          special conversion details

   printer-  printer-state and      For a printer-state of idle or
   status    printer-state-reasons  processing, the mapper SHALL use
                                    the formats above.  For stopped,
                                    the mapper SHALL use printer-
                                    state-reasons to produce an
                                    unspecified format for the error.
   rank      number-of-             the mapper SHALL the format above
             intervening-jobs
   owner     job-originating-user-  unspecified conversion; job-
             name                   originating-user-name may be the
                                    mapper's user-name
   job       job-id                 the mapper shall use the job-id
   files     document-name          the mapper shall create a comma
                                    separated list of the document-
                                    names and then truncate this list
                                    to the first 24 characters
   total-    job-k-                 the mapper shall multiple the
   size      octets*copies*1024     value of job-k-octets by 1024 and
                                    by the value of the "copies"
                                    attribute.