[mkgmap-dev] [mkgmap-svn] Commit r4848: catch some special cases which caused infinite loop in mkgmap or wrong data in MDR16 if there is not much data

Thu Jan 6 09:34:16 GMT 2022

Hi Gerd

Did the '5' nibble in byte 2 indicate the size of lookup table? if so,
could reduce the table size so it overflows. I assume that setting byte
3 to <= table size didn't work

Ticker

On Thu, 2022-01-06 at 09:25 +0000, svn commit wrote:
> Version mkgmap-r4848 was committed by gerd on Thu, 06 Jan 2022
> BRANCH: mdr2
> catch some special cases which caused infinite loop in mkgmap or
> wrong data in MDR16 if there is not much data
> in the index
> - I don't know yet what Garmin expects when there are very few
> characters in the Huffman tree so that all fit into the lookup table.
> Maybe this is what the unknown flag in the initial bits field is
> about
> - don't try to encode with invalid data in mdr16
> 
> http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4848
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