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zero group/world bits in cpio file (issue #101)

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This commit is contained in:
Trammell Hudson 2017-01-31 16:44:35 -05:00
parent e051915707
commit 2acaf616b9
Failed to extract signature
1 changed files with 7 additions and 0 deletions
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7
cpio-clean
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@ -113,6 +113,13 @@ for my $filename (sort keys %entries)
# set timestamps to zero
substr($entry, 6 + 40, 8) = $zero;
# remove group/user permissions, leaving only
# the owner bits intact.
my $mode = hex substr($entry, 6 + 8, 8);
$mode &= ~0077;
#$mode |= $mode >> 3 | $mode >> 6;
substr($entry, 6 + 8, 8) = sprintf "%08X", $mode;
# set uid/gid to zero
substr($entry, 6 + 16, 8) = $zero;
substr($entry, 6 + 24, 8) = $zero;