Bug#729713: libcups2: fails to fetch ppd of ipp:// device
Ping? I still patch my cups (1.7.5-11) locally with the attached
patch, and this bug is still reproduced with unpatched 1.7.5-11.
Any progress on this?
For reminder, the problem is that when (a program using) libcupsys2
wants to retrieve the PPD for a printer whose device URI is
"ipp://something", libcupsys2 tries to connect to the device URI
instead of to the cups server. This makes sense when the device URI is
actually another CUPS server, but *not* when, as in my case, it is a
network-attached printer that "talks" IPP natively. It will *not* have
the PPD at the CUPS-specific URL.
On Tue, Jul 01, 2014 at 04:24:58PM +0200, Lionel Elie Mamane wrote:
> Control: unarchive -1
> Control: found -1 1.7.2-3
> Control: found -1 1.7.3-6
> Control: notfixed -1 1.7.1-1
> Control: reopen -1
>
> It seems the below test was mistaken. I had the problem again with
> 1.7.3-3, so I downgraded to 1.7.2-3, but I still get the problem.
>
> I think I had temporarily changed my printer to not use ipp:// but
> socket:// to work around the problem, and got confused in my
> tests... This bug is *not* fixed.
>
> On Tue, May 13, 2014 at 04:55:52PM +0200, Lionel Elie Mamane wrote:
> > Control: tags -1 -moreinfo
> >
> > On Sun, Jan 05, 2014 at 12:45:10PM +0100, Didier 'OdyX' Raboud wrote:
> >
> > > thanks for your detailed bugreports and proposed patch.
> >
> > > Le dimanche, 5 janvier 2014, 01.44:37 Wolfgang Walter a écrit :
> > >> We modified libcups in the same way as Lionel. I don't know why this
> > >> has been changed from 1.5 to 1.6 but it seems buggy. Most
> > >> ipp-printers don't provide a PPD. And even if the do there is no
> > >> guarantie the client is allowed to communicate directly with the
> > >> printer.
> >
> > > Lionel & Wolfgang: can you try to rebuild and try unstable's cups
> > > (1.7.0-2) without the get-ppd-file-for-statically-configured-ipp-shared-
> > > queues patch and report back if this works as expected?
> >
> > I upgraded to cups 1.7.2-3, which does not anymore have
> > get-ppd-file-for-statically-configured-ipp-shared-queues, and it works
> > as expected.
> >
Index: cups-1.7.5/cups/util.c
===================================================================
--- cups-1.7.5.orig/cups/util.c
+++ cups-1.7.5/cups/util.c
@@ -1718,6 +1718,7 @@ cups_get_printer_uri(
IPP_TAG_URI)) != NULL)
device_uri = attr->values[0].string.text;
+#if 0
if (device_uri &&
(!strncmp(device_uri, "ipp://", 6) ||
!strncmp(device_uri, "ipps://", 7) ||
@@ -1738,7 +1739,9 @@ cups_get_printer_uri(
return (1);
}
- else if ((attr = ippFindAttribute(response, "member-uris",
+ else
+#endif
+ if ((attr = ippFindAttribute(response, "member-uris",
IPP_TAG_URI)) != NULL)
{
/*
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