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From: | Paul Eggert |
Subject: | bug#33878: zcat vs zcat -f -- different output |
Date: | Wed, 26 Dec 2018 10:03:57 -0800 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 |
Namikaze Minato wrote:
Do you know what could be happening?
When gzip -cdf sees junk input data, it simply copies it to standard output; this behavior is documented in the gzip manual (look for --force). Your input files have NUL-byte padding at the end, contrary to Internet RFC 1952.
Do you know how I could try to reproduce the problem on non-confidential data for you to be able to debug?
$ (gzip </dev/null; printf '\0') >t.gz $ gzip -cd <t.gz | od -c 0000000 $ gzip -cdf <t.gz | od -c 0000000 \0 0000001 Though it's not a bug....
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