On 11/15/2010 07:18 PM, Eric Blake wrote:
On 11/13/2010 05:04 PM, Stefan Berger wrote:
On 11/13/2010 04:52 PM, Eric Blake wrote:
* src/nwfilter/nwfilter_ebiptables_driver.c
(ebiptablesWriteToTempFile): Use /bin/sh.
(bash_cmd_path): Delete.
(ebiptablesDriverInit, ebiptablesDriverShutdown): No need to
search for bash.
(CMD_EXEC): Prefer $() over ``, since we can assume POSIX.
(iptablesSetupVirtInPost): Use portable 'test' syntax.
(iptablesLinkIPTablesBaseChain): Use POSIX $(()) syntax.
Since you are the expert with shells and I trust that the TCK tests now
pass with all possible /bin/sh's, you get my ACK.
Well, at least with all POSIX-compliant /bin/sh, which is what Linux is
likely to have, and nwfilter requires Linux.
It won't work with Solaris /bin/sh, but that's a much harder portability
target since it is so old (bourne shell, which pre-dates POSIX). But
thankfully not an issue for this patch.
I've gone ahead and pushed it.
Unfortunately it doesn't work. The code produces a file like this now
for some basic probing. The file now has a syntax error.
#!/bin/sh
cmd='/sbin/iptables -n -L FORWARD'
eval res=\$("${cmd}")
if [ $? -ne 0 ]; then echo "Failure to execute command '${cmd}'.";
exit 1;fi
Stefan
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