On 12/2/20 11:43 AM, ToddAndMargo via users wrote:
Hi All,
Fedora 33
# rpm -qa cups\*
cups-pk-helper-0.2.6-10.fc33.x86_64
cups-pdf-3.0.1-10.fc33.x86_64
cups-libs-2.3.3-18.fc33.x86_64
cups-client-2.3.3-18.fc33.x86_64
cups-ipptool-2.3.3-18.fc33.x86_64
cups-filesystem-2.3.3-18.fc33.noarch
cups-2.3.3-18.fc33.x86_64
cups-libs-2.3.3-18.fc33.i686
cups-filters-libs-1.28.5-3.fc33.x86_64
cups-filters-1.28.5-3.fc33.x86_64
I clean up a bunch of my unused printers.
Problem: printers with the same long name, except for
the end still show is certain programs.
$ lpstat -a
B4350 accepting requests since Thu 29 Oct 2020 01:36:30 PM PDT
Cups-PDF accepting requests since Tue 30 Apr 2019 04:05:39 PM PDT
Virtual_PDF_Printer accepting requests since Tue 29 Sep 2020
03:13:17 AM PDT
Which is the way it is suppose to be.
But programs using reading printers using cupsGetDests2,
still get the old deleted printers:
The text: https://bugs.documentfoundation.org/attachment.cgi?id=167701
The Binary: https://bugs.documentfoundation.org/attachment.cgi?id=167702
#include <iostream>
#include <cups/cups.h>
int main() {
cups_dest_t* dests;
int nCount = cupsGetDests2(CUPS_HTTP_DEFAULT, &dests);
for (int i = 0; i < nCount; i++) {
cups_dest_t dest = dests[i];
std::cout << dest.name << std::endl;
}
}
$ list-printers
B4350
Cups-PDF
Cups_PDF_rn6 <-- deleted
Oki_B4350_on_dev_lp0_rn6 <-- deleted
Virtual_PDF_Printer
Virtual_PDF_Printer_rn6 <-- deleted
Programs without the problem (a sampling):
Brave Browser, Firefox, Vivaldi, Water Fox,
Leafpad, Simple scan, Gimp, Inkscape, Thunderbird,
Geany, Shotwell, PDF Studio 2019
Programs with the problem (also a sampling):
Wine, Libre Office, Free Office, Master PDF Editor
Any ideas? Is cupsGetDests2 not the proper way of dong this?
-T
Follow up:
These are not extras that did not delete when I deleted the originals.
What transpired was the I was experimenting with several way to access a
parallel port card and had created several printers using "_rn6" at the
end of their names. "_rn6" is the host name of the computer.
What I "thought" were un-deleted printers was actually the name cups
tacks a printer that is shared on the network. An d it took me several
day to realize I was looking at a coincidence. "cupsGetDests2" in its
"ultimate wisdom" list both the local name and the shared name:
Cups-PDF <-- local name
Cups_PDF_rn6 <-- shared name
Virtual_PDF_Printer <-- local name
Virtual_PDF_Printer_rn6 <--shared name
Now I will go wipe some eggs off my face.
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