Bug 461026

Summary:	cups-polld needs to call __res_init() on hostname failure
Product:	Red Hat Enterprise Linux 5	Reporter:	Tim Waugh <twaugh>
Component:	cups	Assignee:	Tim Waugh <twaugh>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	medium
Version:	5.2	CC:	ddumas, tburke
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-01-20 21:59:00 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Tim Waugh 2008-09-03 14:57:44 UTC

+++ This bug was initially created as a clone of Bug #354071 +++

The cups-polld process needs to call __res_init() before trying to resolve the hostname.

Without doing this, any hostname served by a server on a network interface that is not yet available will fail to resolve even when the network interface becomes available.

Comment 2 RHEL Program Management 2008-09-05 12:43:01 UTC

This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.

Comment 7 Tim Waugh 2008-11-05 10:39:05 UTC

To reproduce:

1. On machine A set up a print queue and mark it shared.  Set 'Publish shared printers connected to this system' so that it is accessible on the network.

2. On machine B, use the firewall to *block* UDP port 631.  Configure CUPS to poll from machine A instead, like this:

cupsctl BrowsePoll=machine-a.mynetwork

3. Now on machine B stop CUPS, 'rm /var/cache/cups/remote.cache', and bring down the network interface.

4. Start CUPS on machine B and verify that lpstat -s shows no printers (there is no network connection to do that with).

5. Now bring up the network interface and wait a few minutes, then run 'lpstat -s'.  This should show the remote queue, but the failing package will not because even though the network connection is up, it cannot resolve the hostname due to the resolver cache remembering that there is no connection.

Comment 11 errata-xmlrpc 2009-01-20 21:59:00 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHEA-2009-0201.html