ipptest-ing get-printer-attributes with a Canon iR6000

[Kurt Pfeifle]

The following info concerns a Canon iR6000 printer. It may be useful
to determine future improvements (putting exceptions/workarounds for
certain vendors/models into the code) when the snmp backend probes 
for valid IPP device URIs.

I used the ipptest utility (in the "test" subdir of the self-compiled
sources) to probe the printer:


  ./ipptest -v ipp://10.162.2.94:631/ get-printer-attributes.test
  ---------------------------------------------------------------
  "get-printer-attributes.test":
  Get-Printer-Attributes:
          attributes-charset (charset) = "utf-8"
          attributes-natural-language (language) = "en"
          printer-uri (uri) = "ipp://10.162.2.94:631/"
      Get printer attributes using get-printer-attributes          [


With this device URI the output hangs with the open "[" shown on the
last line (I interrupted after 4 minutes).

The next probe was with a different device URI:


  ./ipptest -v ipp://10.162.2.94:631/ipp get-printer-attributes.test
  ------------------------------------------------------------------
  "get-printer-attributes.test":
  Get-Printer-Attributes:
          attributes-charset (charset) = "utf-8"
          attributes-natural-language (language) = "en"
          printer-uri (uri) = "ipp://10.162.2.94:631/ipp"
      Get printer attributes using get-printer-attributes          [FAIL]
          RECEIVED: 889 bytes in response
          status-code = 0000 (successful-ok)
          EXPECTED: printer-info
          EXPECTED: printer-more-info
          EXPECTED: printer-state-reasons
          attributes-charset (charset) = "utf-8"
          attributes-natural-language (language) = "en"
          printer-uri-supported (uri) = "http://10.162.2.94/ipp" "ipp://10.162.2.94/ipp"
          uri-security-supported (keyword) = "none" "none"
          uri-authentication-supported (keyword) = "none" "none"
          printer-name (namelang) = "IS_1050",de
          printer-location (textlang) = "",de
          printer-make-and-model (textlang) = "Canon iR5000-6000",de
          printer-state (enum) = 3
          ipp-versions-supported (keyword) = "1.0" "1.1"
          operations-supported (enum) = 2 10 8 9 11 4
          charset-configured (charset) = "utf-8"
          charset-supported (charset) = "utf-8"
          natural-language-configured (language) = "de"
          generated-natural-language-supported (language) = "de"
          document-format-default (mimetype) = "application/octet-stream"
          document-format-supported (mimetype) = "application/octet-stream" "application/vnd.hp-PCL"
          printer-is-accepting-jobs (boolean) = true
          queued-job-count (integer) = 0
          pdl-override-supported (keyword) = "not-attempted"
          printer-up-time (integer) = 539641
          compression-supported (keyword) = "none"

Same result can be obtained with /ipp/port1, /ipp/port2, /ipp/bullshit 
(sorry, couldn't resist to try that :-) -- however, a simple /bullshit
yields this result:


  ./ipptest -v ipp://10.162.2.94:631/bullshit get-printer-attributes.test
  -----------------------------------------------------------------------
  "get-printer-attributes.test":
  Get-Printer-Attributes:
          attributes-charset (charset) = "utf-8"
          attributes-natural-language (language) = "en"
          printer-uri (uri) = "ipp://10.162.2.94:631/bullshit"
      Get printer attributes using get-printer-attributes          [FAIL]
          ERROR 0406 (Not Found) @ Thu Jul 27 23:57:30 2006



I'll try to write a shell script that crawls the LAN, automatically 
probes all available printers around here and stores the result in 
a set of files.

If anyone has done this already, let me know.

Cheers,
Kurt