mirror of
https://git.proxmox.com/git/qemu-server
synced 2025-08-03 09:30:05 +00:00
e5caa02e05
Fixes problems in CLIHandler using the code pattern:
while (my $line = <>) {
...
}
For why this causes only _now_ problems lets first look how <>
behaves:
"The null filehandle <> is special: [...] Input from <> comes either
from standard input, or from each file listed on the command line.
Here's how it works: the first time <> is evaluated, the @ARGV array
is checked, and if it is empty, $ARGV[0] is set to "-" , which when
opened gives you standard input. The @ARGV array is then processed
as a list of filenames." - 'perldoc perlop'
Recent changes in the CLIHandler code changed how we modfiied @ARGV
Earlier we assumed that the first argument must be the command and
thus shifted it out of @ARGV, now we can have multiple levels of
(sub)commands. This change also changed how we handle @ARGV, we do
not unshift anything but go through the arguments until we got to
the final command and copy the rest of @ARGV as we know that this
must be the commandos arguments.
For '<>' this means that ARGV was still fully populated and perl
tried to open element as a file, which naturally failed.
Thus the change in pve-common only exposed this 'dangerous' code
pattern.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
|
||
|---|---|---|
| debian | ||
| PVE | ||
| test | ||
| .gitignore | ||
| bootsplash.jpg | ||
| bootsplash.xcf | ||
| Makefile | ||
| modules-load.conf | ||
| pcitest.pl | ||
| pve-bridge | ||
| pve-bridge-hotplug | ||
| pve-bridgedown | ||
| pve-q35.cfg | ||
| pve-usb.cfg | ||
| qm | ||
| qmextract | ||
| qmrestore | ||
