From: Claudio Jeker <cje...@diehard.n-r-g.com>
Date: Wed, 13 Feb 2019 14:25:58 +0100

> On Wed, Feb 13, 2019 at 11:04:02AM +0900, Masato Asou wrote:
>> Hi,
>> 
>> When I execute `ifconfig media XX -mediaopt YY' command, it occured
>> error as below.
>> 
>> $ doas ifconfig em1 media 100baseTX -mediaopt full-duplex
>> ifconfig: may not issue both `media' and `-mediaopt'
>> $ echo $?
>> 1
>> 
>> Does anyone knows this reason?
> 
> This was done to prevent changing mediaopt while changing media at the
> same time. Media and mediaopt are linked together and ifconfig fetches
> the initial settings early on. Changing media and mediaopt at the same
> time may end up with a results that puts the interface into an invalid
> state.

Thanks for your explanation.

However, media and mediaopt (not `-') can specfy same time. Does this
work valid?

> Is there a particular reason why you need to use media and
> -mediaopt at the same time?

I have no particular reason. I just thiking that way.
If specified media and -media same time, I only execute one command.

>> I think following patch is works fine.
>> 
>> $ cvs diff ifconfig.c
>> Index: ifconfig.c
>> ===================================================================
>> RCS file: /cvs/src/sbin/ifconfig/ifconfig.c,v
>> retrieving revision 1.379
>> diff -u -p -r1.379 ifconfig.c
>> --- ifconfig.c  30 Sep 2018 18:19:24 -0000      1.379
>> +++ ifconfig.c  13 Feb 2019 01:58:18 -0000
>> @@ -2797,10 +2797,6 @@ unsetmediaopt(const char *val, int d)
>>         if (actions & A_MEDIAOPTCLR)
>>                 errx(1, "only one `-mediaopt' command may be issued");
>> 
>> -       /* May not issue `media' and `-mediaopt'. */
>> -       if (actions & A_MEDIA)
>> -               errx(1, "may not issue both `media' and `-mediaopt'");
>> -
>>         /*
>>          * No need to check for A_MEDIAINST, since the test for A_MEDIA
>>          * implicitly checks for A_MEDIAINST.
>> --
>> ASOU Masato
>> 
> 
> -- 
> :wq Claudio

--
ASOU Masato

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