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       wlmscpfs - DICOM Basic Worklist Management SCP (based on data files)


       wlmscpfs [options] port


       The  wlmscpfs application implements a Service Class Provider (SCP) for the Basic Worklist
       Management Service. The application will listen on a specified TCP/IP  port  for  incoming
       association  requests  from  a  Worklist  Management  SCU.  In  case  an  association  was
       acknowledged and a worklist query  was  received,  the  wlmscpfs  application  will  query
       particular  files  in  a  certain  directory (which can be specified through corresponding
       program options) on the file system for corresponding worklist information,  and  it  will
       send this information back to the calling Worklist Management SCU. Aside from dealing with
       Worklist Management queries, the  wlmscpfs  application  also  supports  the  Verification
       Service Class as an SCP.


       port  tcp/ip port number to listen on


   general options
         -h    --help
                 print this help text and exit

                 print version information and exit

                 print expanded command line arguments

         -q    --quiet
                 quiet mode, print no warnings and errors

         -v    --verbose
                 verbose mode, print processing details

         -d    --debug
                 debug mode, print debug information

         -ll   --log-level  [l]evel: string constant
                 (fatal, error, warn, info, debug, trace)
                 use level l for the logger

         -lc   --log-config  [f]ilename: string
                 use config file f for the logger

   multi-process options
         -s    --single-process
                 single process mode

                 fork child process for each association (default)

   input options

         -dfp  --data-files-path  [p]ath: string (default: .)
                 path to worklist data files

       handling of worklist files:

         -efr  --enable-file-reject
                 enable rejection of incomplete worklist files (default)

         -dfr  --disable-file-reject
                 disable rejection of incomplete worklist files

   processing options
       returned character set:

         -cs0  --return-no-char-set
                 return no specific character set (default)

         -cs1  --return-iso-ir-100
                 return specific character set ISO IR 100

         -csk  --keep-char-set
                 return character set provided in file

       other processing options:

         -nse  --no-sq-expansion
                 disable expansion of empty sequences in C-FIND
                 request messages

   network options
       preferred network transfer syntaxes:

         +x=   --prefer-uncompr
                 prefer explicit VR local byte order (default)

         +xe   --prefer-little
                 prefer explicit VR little endian TS

         +xb   --prefer-big
                 prefer explicit VR big endian TS

         +xd   --prefer-deflated
                 prefer deflated explicit VR little endian TS

         +xi   --implicit
                 accept implicit VR little endian TS only

       network host access control (tcp wrapper):

         -ac   --access-full
                 accept connections from any host (default)

         +ac   --access-control
                 enforce host access control rules

       post-1993 value representations:

         +u    --enable-new-vr
                 enable support for new VRs (UN/UT) (default)

         -u    --disable-new-vr
                 disable support for new VRs, convert to OB

       deflate compression level (only with --prefer-deflated):

         +cl   --compression-level  [l]evel: integer (default: 6)
                 0=uncompressed, 1=fastest, 9=best compression

       other network options:

         -ta   --acse-timeout  [s]econds: integer (default: 30)
                 timeout for ACSE messages

         -td   --dimse-timeout  [s]econds: integer (default: unlimited)
                 timeout for DIMSE messages

               --max-associations  [a]ssocs: integer (default: 50)
                 limit maximum number of parallel associations

                 refuse association

                 reject association if no implementation class UID

                 don't fail on an invalid query

               --sleep-after  [s]econds: integer
                 sleep s seconds after find (default: 0)

               --sleep-during  [s]econds: integer
                 sleep s seconds during find (default: 0)

         -pdu  --max-pdu  [n]umber of bytes: integer (4096..131072)
                 set max receive pdu to n bytes (default: 16384)

         -dhl  --disable-host-lookup
                 disable hostname lookup


       The  semantic impacts of the above mentioned options is clear for the majority of options.
       Some particular options, however, are so specific that  they  need  detailed  descriptions
       which will be given in this passage.

       The  returned  character  set  options  are  intended for situations in which the wlmscpfs
       application will return attribute values which are not composed  of  characters  from  the
       DICOM  default character repertoire. In such cases, for example option --return-iso-ir-100
       can be used to specify that a response to a modality's worklist management C-FIND  request
       shall  contain  DICOM's  Specific Character Set attribute (0008,0005) with a corresponding
       value, indicating the character repertoire from which the characters of returned attribute
       values  were  taken  (in  this  example  the  repertoire ISO IR 100). Please note that the
       wlmscpfs application will not make sure that all returned values are actually made  up  of
       this character repertoire; the application expects this to be the case.

       In  general, the Specific Character Set attribute (0008,0005) will only be included in the
       C-FIND response if it contains any attributes that are affected by the character set, i.e.
       for value representations PN, LO, LT, SH, ST and UT.

       Please note that a C-FIND request which is handled by this application may contain DICOM's
       Specific Character Set attribute (0008,0005), but this application  will  never  use  this
       attribute's  value  for  matching. Besides, the question if DICOM's Specific Character Set
       attribute (0008,0005) will be contained in a C-FIND response which  is  returned  by  this
       application  is always determined by the returned character set option which was specified
       when this application was started.

       The options --enable-file-reject and  --disable-file-reject  can  be  used  to  enable  or
       disable  a  file rejection mechanism which makes sure only complete worklist files will be
       used during the matching process. A worklist file is  considered  to  be  complete  if  it
       contains  all necessary type 1 information which the SCP might have to return to an SCU in
       a C-FIND response message. Table K.6-1 in part 4 annex K of the DICOM standard  lists  all
       corresponding type 1 attributes (see column 'Return Key Type').

   DICOM Conformance
       The wlmscpfs application supports the following SOP Classes as an SCP:

       VerificationSOPClass                  1.2.840.10008.1.1
       FINDModalityWorklistInformationModel  1.2.840.10008.

       The  wlmscpfs  application will accept presentation contexts for all of the abovementioned
       supported SOP Classes using any of the transfer syntaxes:

       LittleEndianImplicitTransferSyntax    1.2.840.10008.1.2
       LittleEndianExplicitTransferSyntax    1.2.840.10008.1.2.1
       BigEndianExplicitTransferSyntax       1.2.840.10008.1.2.2

       The default behavior of the wlmscpfs application is to prefer transfer syntaxes having  an
       explicit  encoding  over  the  default implicit transfer syntax. If wlmscpfs is running on
       big-endian hardware it will  prefer  BigEndianExplicit  to  LittleEndianExplicit  transfer
       syntax  (and  vice  versa).  This  behavior  can be changed with the --prefer options (see

       If compiled with zlib support enabled (see  --version  output)  and  if  option  --prefer-
       deflated is used, also the following transfer syntax is accepted.

       DeflatedExplicitVRLittleEndianTransferSyntax  1.2.840.10008.

       The wlmscpfs application does not support extended negotiation.

       Currently, the wlmscpfs application supports the following attributes as matching keys:

       (0008,0020) StudyDate
       (0008,0030) StudyTime
       (0008,0050) AccessionNumber
       (0008,0090) ReferringPhysicianName
       (0010,0010) PatientName
       (0010,0020) PatientID
       (0010,0021) IssuerOfPatientID
       (0010,0030) PatientBirthDate
       (0010,0040) PatientSex
       (0010,2297) Responsible Person
       (0010,2298) Responsible Person Role
       (0032,1032) RequestingPhysician
       (0038,0010) AdmissionID
       (0040,0100) ScheduledProcedureStepSequence
         (0008,0060) > Modality
         (0040,0001) > ScheduledStationAETitle
         (0040,0002) > ScheduledProcedureStepStartDate
         (0040,0003) > ScheduledProcedureStepStartTime
         (0040,0006) > ScheduledPerformingPhysicianName
       (0040,1001) RequestedProcedureID
       (0040,1003) RequestedProcedurePriority

       As return keys the following attributes are currently supported by wlmscpfs:

       (0008,0020) StudyDate
       (0008,0030) StudyTime
       (0008,0050) AccessionNumber
       (0008,0080) InstitutionName
       (0008,0081) InstitutionAddress
       (0008,0090) ReferringPhysicianName
       (0008,1080) AdmittingDiagnosesDescription
       (0008,1110) ReferencedStudySequence
         (0008,1150) > ReferencedSOPClassUID
         (0008,1155) > ReferencedSOPInstanceUID
       (0008,1120) ReferencedPatientSequence
         (0008,1150) > ReferencedSOPClassUID
         (0008,1155) > ReferencedSOPInstanceUID
       (0010,0010) PatientName
       (0010,0020) PatientID
       (0010,0021) IssuerOfPatientID
       (0010,0030) PatientBirthDate
       (0010,0040) PatientSex
       (0010,1000) OtherPatientIDs (retired)
       (0010,1001) OtherPatientNames
       (0010,1020) PatientSize
       (0010,1030) PatientWeight
       (0010,1040) PatientAddress
       (0010,1080) MilitaryRank
       (0010,2000) MedicalAlerts
       (0010,2110) ContrastAllergies
       (0010,2160) EthnicGroup
       (0010,21a0) SmokingStatus
       (0010,21b0) AdditionalPatientHistory
       (0010,21c0) PregnancyStatus
       (0010,21d0) LastMenstrualDate
       (0010,2297) ResponsiblePerson
       (0010,2298) ResponsiblePersonRole
       (0010,4000) PatientComments
       (0020,000d) StudyInstanceUID
       (0032,1032) RequestingPhysician
       (0032,1033) RequestingService
       (0032,1060) RequestedProcedureDescription
       (0032,1064) RequestedProcedureCodeSequence
         (0008,0100) > CodeValue
         (0008,0102) > CodingSchemeDesignator
         (0008,0103) > CodingSchemeVersion
         (0008,0104) > CodeMeaning
       (0038,0010) AdmissionID
       (0038,0011) IssuerOfAdmissionID
       (0038,0050) SpecialNeeds
       (0038,0300) CurrentPatientLocation
       (0038,0500) PatientState
       (0040,0100) ScheduledProcedureStepSequence
         (0008,0060) > Modality
         (0032,1070) > RequestedContrastAgent
         (0040,0001) > ScheduledStationAETitle
         (0040,0002) > ScheduledProcedureStepStartDate
         (0040,0003) > ScheduledProcedureStepStartTime
         (0040,0004) > ScheduledProcedureStepEndDate
         (0040,0005) > ScheduledProcedureStepEndTime
         (0040,0006) > ScheduledPerformingPhysicianName
         (0040,0007) > ScheduledProcedureStepDescription
         (0040,0008) > ScheduledProtocolCodeSequence
           (0008,0100) > > CodeValue
           (0008,0102) > > CodingSchemeDesignator
           (0008,0103) > > CodingSchemeVersion
           (0008,0104) > > CodeMeaning
         (0040,0009) > ScheduledProcedureStepID
         (0040,0010) > ScheduledStationName
         (0040,0011) > ScheduledProcedureStepLocation
         (0040,0012) > PreMedication
         (0040,0020) > ScheduledProcedureStepStatus
         (0040,0400) > CommentsOnTheScheduledProcedureStep
       (0040,1001) RequestedProcedureID
       (0040,1002) ReasonForTheRequestedProcedure
       (0040,1003) RequestedProcedurePriority
       (0040,1004) PatientTransportArrangements
       (0040,1005) RequestedProcedureLocation
       (0040,1008) ConfidentialityCode
       (0040,1009) ReportingPriority
       (0040,1010) NamesOfIntendedRecipientsOfResults
       (0040,1400) RequestedProcedureComments
       (0040,2001) ReasonForTheImagingServiceRequest
       (0040,2004) IssueDateOfImagingServiceRequest
       (0040,2005) IssueTimeOfImagingServiceRequest
       (0040,2008) OrderEnteredBy
       (0040,2009) OrderEnterersLocation
       (0040,2010) OrderCallbackPhoneNumber
       (0040,2016) PlacerOrderNumberImagingServiceRequest
       (0040,2017) FillerOrderNumberImagingServiceRequest
       (0040,2400) ImagingServiceRequestComments
       (0040,3001) ConfidentialityConstraintOnPatientDataDescription

       The  attribute  (0008,0005)  SpecificCharacterSet  is  a  special  case and its support by
       wlmscpfs is discussed in the NOTES section above.

   Access Control
       When compiled on Unix platforms with TCP wrapper support, host-based access control can be
       enabled  with  the  --access-control  command line option. In this case the access control
       rules defined in the system's host access control tables for wlmscpfs  are  enforced.  The
       default   locations   of   the   host  access  control  tables  are  /etc/hosts.allow  and
       /etc/hosts.deny. Further details are described in hosts_access(5).


       The level of logging output of the various command line tools and underlying libraries can
       be specified by the user. By default, only errors and warnings are written to the standard
       error stream. Using option --verbose also informational messages like  processing  details
       are  reported.  Option  --debug  can be used to get more details on the internal activity,
       e.g. for debugging purposes. Other logging levels can  be  selected  using  option  --log-
       level.  In  --quiet mode only fatal errors are reported. In such very severe error events,
       the application will usually terminate. For more details on the different logging  levels,
       see documentation of module 'oflog'.

       In  case  the logging output should be written to file (optionally with logfile rotation),
       to syslog (Unix) or the  event  log  (Windows)  option  --log-config  can  be  used.  This
       configuration  file also allows for directing only certain messages to a particular output
       stream and for filtering certain messages based on the module or  application  where  they
       are generated. An example configuration file is provided in <etcdir>/logger.cfg.


       All  command line tools use the following notation for parameters: square brackets enclose
       optional values (0-1), three trailing dots  indicate  that  multiple  values  are  allowed
       (1-n), a combination of both means 0 to n values.

       Command  line  options  are  distinguished  from  parameters by a leading '+' or '-' sign,
       respectively. Usually, order and position of command line options are arbitrary (i.e. they
       can  appear anywhere). However, if options are mutually exclusive the rightmost appearance
       is used. This behavior conforms to the standard evaluation rules of common Unix shells.

       In addition, one or more command files can be specified using an '@' sign as a  prefix  to
       the  filename  (e.g.  @command.txt). Such a command argument is replaced by the content of
       the corresponding text file (multiple whitespaces are treated as a single separator unless
       they appear between two quotation marks) prior to any further evaluation. Please note that
       a command file cannot contain another command file. This  simple  but  effective  approach
       allows  one  to summarize common combinations of options/parameters and avoids longish and
       confusing command lines (an example is provided in file <datadir>/dumppat.txt).


       The wlmscpfs utility will attempt  to  load  DICOM  data  dictionaries  specified  in  the
       DCMDICTPATH environment variable. By default, i.e. if the DCMDICTPATH environment variable
       is not set, the file <datadir>/dicom.dic will be loaded unless  the  dictionary  is  built
       into the application (default for Windows).

       The  default  behavior  should  be preferred and the DCMDICTPATH environment variable only
       used when alternative data dictionaries are required. The DCMDICTPATH environment variable
       has  the  same  format  as  the  Unix  shell PATH variable in that a colon (':') separates
       entries. On Windows systems, a semicolon (';') is used as a separator. The data dictionary
       code  will attempt to load each file specified in the DCMDICTPATH environment variable. It
       is an error if no data dictionary can be loaded.


       Copyright (C) 1996-2017 by OFFIS e.V., Escherweg 2, 26121 Oldenburg, Germany.