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Description of problem:
The fix for STR #4461 changes the way files in /etc/cups/ppd/ are created by cupsd. They are no longer world-readable.
Unfortunately, cupsGetPPD() assumes that if the files exist, they are world-readable, and so will return a symlink to a file in /etc/cups/ppd/ to the caller even though they will not be able to read it.
This causes numerous failures:
system-config-printer will not be able to edit any local queue
any gtk application will not be able to adjust printer options when printer
lpoptions -p <printer> -l will fail
etc...
Version-Release number of selected component (if applicable):
cups-1.6.3-16.el7
How reproducible:
100%
Steps to Reproduce:
1.sudo lpadmin -p foo -m drv:///sample.drv/generic.ppd -v socket://foo:9100 -E
2.lpoptions -p foo -l
Actual results:
lpoptions: Unable to open PPD file for foo.
Expected results:
PageSize/Media Size: Letter Legal Executive Tabloid A3 *A4 A5 B5 EnvISOB5 Env10 EnvC5 EnvDL EnvMonarch
InputSlot/Media Source: *Default Upper Manual
Duplex/2-Sided Printing: *None DuplexNoTumble DuplexTumble
Option1/Duplexer: *False True
Additional info:
Fix is for cupsGetPPD3() to check for readability.
See also bug #1150917, which is the Fedora equivalent of this.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHBA-2015-0386.html