Re: [PATCH] Don't use AI_ADDRCONFIG when binding to wildcard addresses

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On 05/29/2014 04:47 PM, Eric Blake wrote:
> On 05/29/2014 03:32 AM, Ján Tomko wrote:
>> https://bugzilla.redhat.com/show_bug.cgi?id=1098659
>>
>> With parallel boot, network addresses might not yet be assigned [1],
>> but binding to wildcard addresses should work.
>>
>> For non-wildcard addresses, ADDRCONFIG is still used. Document this
>> in libvirtd.conf.
>>
>> [1] http://www.freedesktop.org/wiki/Software/systemd/NetworkTarget/
>> ---
> 
>> -    hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG;
>> +    hints.ai_flags = AI_PASSIVE;
>>      hints.ai_socktype = SOCK_STREAM;
>>  
>> +    /* Don't use ADDRCONFIG for binding to the wildcard address.
>> +     * Just catch the error returned by socket() if the system has
>> +     * no IPv6 support.
>> +     *
>> +     * This allows libvirtd to be started in parallel with the network
>> +     * startup in most cases.
>> +     */
>> +    if (nodename &&
>> +        !(virSocketAddrParse(&tmp_addr, nodename, AF_UNSPEC) > 0 &&
>> +          virSocketAddrIsWildcard(&tmp_addr)))
>> +        hints.ai_flags = AI_ADDRCONFIG;
> 
> Shouldn't this be |= ?
> 

Functionally it's the same, AI_PASSIVE is ignored if nodename is non-NULL.

But it should be |= if we were using other flags.

Jan

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