On 2009-12-08 1:36 PM, Ugur DOGRU wrote:
>
> Hi,
>
> After getting busybox 1.15.2, "local" macro is not a problem now. So I
> removed all modifications that removes local.
> To remind it, these changes are for ubicom32 platform, but for all
> no-mmu platforms in general.
> As ash cannot run on no-mmu system, we are using hush instead.
>
> There are still not compatible features between ash/hush. I've listed
> them below. Please note that these are only
> problems that I've encountered in firewall/iptables scripts.
>
> 1/ hush needs "eval" to substitute string.
> 2/ hush doesn't handle line concatenation : "\"
Are you sure that these two kinds of changes are still necessary? I
tried to reproduce your issues by writing small test cases with hush
here, but every test case I come up with seems to work fine.
I also tested parameter expansion such as ${var:+-p $var}, and I also
cannot get it to fail with hush.
If hush still has issues with some of these expansions, could you please
reduce it down to a small test case, so that I can verify it and maybe
fix it in hush directly instead of the scripts?
> 3/ hush crashes if two scripts include each other. (uci_firewall.sh and
> /etc/hotplug.d/iface/20-firewall includes each other)
I replaced that today without duplicating the hotplug script's code.
As to some of your other changes:
> - config_get exists $ZONE_LIST $1
> + eval_ZONE_LIST=$(eval "echo $ZONE_LIST")
> + config_get exists $eval_ZONE_LIST $1
Why is this necessary?
- Felix
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