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iftop and 'ipv6' USE-flag

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v_2e at ukr

Jun 13, 2012, 2:11 AM

Post #1 of 4 (230 views)
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iftop and 'ipv6' USE-flag

Hello!
During a recent upgrade, I noticed that 'net-analyzer/iftop' now
needs 'net-libs/libpcap' with the 'ipv6' USE flag. It seemed strange to
me and I decided to ask here. Does 'iftop' really needs IPv6? Can't it
be optional?

Thank you.
Vladimir

-----
<v_2e [at] ukr>

michael at orlitzky

Jun 13, 2012, 7:11 AM

Post #2 of 4 (226 views)
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Re: iftop and 'ipv6' USE-flag [In reply to]

On 06/13/12 05:11, v_2e [at] ukr wrote:
> Hello!
> During a recent upgrade, I noticed that 'net-analyzer/iftop' now
> needs 'net-libs/libpcap' with the 'ipv6' USE flag. It seemed strange to
> me and I decided to ask here. Does 'iftop' really needs IPv6? Can't it
> be optional?

It's an upstream bug, if they consider it one. From the Gentoo ChangeLog:

30 May 2012; Lars Wendler <polynomial-c [at] gentoo> iftop-
1.0_pre2.ebuild:
Non-maintainer commit: We need libpcap with ipv6 support or else iftop
doesn't work at all.

I downloaded the latest iftop tarball and,

1 There is no ./configure option for ipv6

2 Compiling it against libpcap without ipv6 support works, but it
crashes at runtime:

$ sudo ./iftop
...
set_filter_code: ip6 not supported

v_2e at ukr

Jun 13, 2012, 9:02 AM

Post #3 of 4 (226 views)
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Re: iftop and 'ipv6' USE-flag [In reply to]

On Wed, 13 Jun 2012 10:11:45 -0400
Michael Orlitzky <michael [at] orlitzky> wrote:
>
> It's an upstream bug, if they consider it one. From the Gentoo
> ChangeLog:
>
> 30 May 2012; Lars Wendler <polynomial-c [at] gentoo> iftop-
> 1.0_pre2.ebuild:
> Non-maintainer commit: We need libpcap with ipv6 support or else
> iftop doesn't work at all.
>
> I downloaded the latest iftop tarball and,
>
> 1 There is no ./configure option for ipv6
>
> 2 Compiling it against libpcap without ipv6 support works, but it
> crashes at runtime:
>
> $ sudo ./iftop
> ...
> set_filter_code: ip6 not supported
>
Hm... That's bad.

Vladimir

-----
<v_2e [at] ukr>

michael at orlitzky

Jun 13, 2012, 9:22 AM

Post #4 of 4 (219 views)
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Re: iftop and 'ipv6' USE-flag [In reply to]

On 06/13/12 12:02, v_2e [at] ukr wrote:
> On Wed, 13 Jun 2012 10:11:45 -0400
> Michael Orlitzky <michael [at] orlitzky> wrote:
>>
>> It's an upstream bug, if they consider it one. From the Gentoo
>> ChangeLog:
>> ...
>>
> Hm... That's bad.
>

Agreed. I reported it upstream and opened a bug:

https://bugs.gentoo.org/show_bug.cgi?id=421003

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