PMPrintSettingsSetJobName can set long job name which over 255 characters.

Number:rdar://34428043 Date Originated:9/14/2017
Status:Open Resolved:
Product:macOS + SDK Product Version:10.12.6
Classification:Other Reproducible:Always

I can set the job name which is over 255 characters via PMPrintSettingsSetJobName[1].
As result, The CUPS received IPP Error:

D [14/Sep/2017:10:57:42 +0900] Create-Job ipp://localhost:631/printers/Canon_MF510_Series
D [14/Sep/2017:10:57:42 +0900] Create-Job client-error-attributes-or-values-not-supported: Bad job-name value: “job-name”: 名前値“Title with more than 255 characters (256) ++++++++++++++++++++\
++”が正しくありません - 長さ256が正しくありません(RFC 2911 セクション4.1.2)。
E [14/Sep/2017:10:57:42 +0900] [Client 83] Returning IPP client-error-attributes-or-values-not-supported for Create-Job (ipp://localhost:631/printers/Canon_MF510_Series) from localhost

Steps to Reproduce:
We can reproduce this phenomenon on Print Core Sample code. I added the PMPrintSettingsSetJobName() into APLAppDelegate.m, and set the long job name like 256 character. An attachment is customized PMPrinterPrintWithFile(Sample Code).

 1. Print from customized

Expected Results:
 We can print via CUPS.

Actual Results:
 CUPS has error. 

 macOS: 10.12.6
 XCode: Version 8.3.2

  Printer: Canon MF510 Series


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