[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

bug#49952: new snapshot available: gzip-1.10.34-aa73

From: Paul Eggert
Subject: bug#49952: new snapshot available: gzip-1.10.34-aa73
Date: Mon, 9 Aug 2021 14:41:45 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0

On 8/9/21 8:19 AM, Adler, Mark wrote:
pigz -l doesn’t do that, but pigz -lt does. Since -t has to decode the whole 
file, -l combined with it will use that information to give the correct result. 
For compatibility, pigz -l still does what gzip does, which is to guess based 
on what it finds at the end of the file.

Perhaps gzip -l could do bounded work, as follows:

* Look at the header to see what its byte count B says.

* Decompress until it sees more than B bytes.

* If so, report that the -l sizes are bogus. If not, carry on as before.

Due to format limits, B can be at most 2**32 - 1, so this provides a bound on the amount of work, a bound that's reasonably small nowadays.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]