(/usr/lib/cups/filter/rastertozj) crashed on signal 11.

[DarkoLorger]

After installing driver for zj-58 we got issue "(/usr/lib/cups/filter/rastertozj) crashed on signal 11." in log file from cups and no printing of page...
We find next...
Variable is defined like:
unsigned iBytesChunk = 0;
but when program run function
iBytesChunk = compress_buffer(pRasterBuf, iBytesChunk,
tHeader.cupsBytesPerLine, width_bytes);
in some reason it can be negative (or value so big ) and that is the reason for signal 11...
Suggestion and tested solution...
Variable change to
int iBytesChunk = 0;
and after call a function compress_buffer, check the value and correct it
if (iBytesChunk<0)
{
iBytesChunk=(tHeader.cupsBytesPerLine *iBlockHeight)+iBytesChunk;
}
Regards...

[klirichek]

Hello, @DarkoLorger
Thanks for the investigation and the fix.
I can pick your fix, however it would be better if you make pull-request and I approve it. (that is better in means that you'll be mentioned in the git history of commits as a contributer). However, if you don't desire it, I can just make manual changes.

[lekhnath]

@klirichek I am also getting the exact same error message in Ubuntu 20 LTS. Please make this fix available.

Also, is there any quick fix to this? I mean is there any thing that I could do in my local machine to fix this error?

Thanks.

CC: @DarkoLorger

[aralfer]

issue confirmed and proposed resolution works like a charm

thanks !

[pintsel]

We had exactly the same problem, when trying to print with Epson TM-T20III Ethernet version (LPD port 515 in Cups). This fix indeed works like a charm! Thank you very much!
(so far we had no problems with TM20 USB versions and using IPP)

[karfas]

The patch is in #52 .