Hi,

I've seen that with large sized files (14G in this case) when I use the "list" option I get wrong uncompressed size and the ratio, of course, is wrong. I've tested it with versions 1.10 (last just compiled) and 1.5 (system version).

 # ./gzip -l  file.gz
         compressed        uncompressed  ratio uncompressed_name

         4937209128          1654354046 -198.4% file

The real uncompressed size is 14539255934.

# ./gzip -V
gzip 1.10
Copyright (C) 2018 Free Software Foundation, Inc.
Copyright (C) 1993 Jean-loup Gailly.
This is free software.  You may redistribute copies of it under the terms of
the GNU General Public License <https://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.

Written by Jean-loup Gailly.

#ldd ./gzip
        linux-vdso.so.1 =>  (0x00007ffecc9f2000)
        libc.so.6 => /lib64/libc.so.6 (0x00007f4414ef0000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f44152be000)

# file ./gzip
./gzip: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=d0d1507ea734a12479a63489ea858bd997fcb716, not stripped