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file_size_info: handle dangling symlinks

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and other stat failure modes.

this method returns undef if 'qemu-img info ...' fails to return
information, so callers must handle this already.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
This commit is contained in:
Fabian Grünbichler 2020-10-02 13:55:15 +02:00 committed by Thomas Lamprecht
parent c018887fd3
commit d1f4700063
1 changed files with 6 additions and 0 deletions
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6
PVE/Storage/Plugin.pm
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@ -783,6 +783,12 @@ sub file_size_info {
my $st = File::stat::stat($filename);
if (!defined($st)) {
my $extramsg = -l $filename ? ' - dangling symlink?' : '';
warn "failed to stat '$filename'$extramsg\n";
return undef;
}
if (S_ISDIR($st->mode)) {
return wantarray ? (0, 'subvol', 0, undef, $st->ctime) : 1;
}