Bug 356375 – getaddrinfo failes on hardcoded IPv6 address

• Status: RESOLVED FIXED
• Product: Portage Development

[Description Tom Dickson 2011-02-25 05:20:48 UTC]

I have SYNC="rsync://[2001:48a8:0:8:0:3:0:232]/gentoo-portage" in my make.conf, and every time I run emerge --sync, it works but it complains:

emerge --sync
!!! getaddrinfo failed for '[2001': [Errno -2] Name or service not known
>>> Starting rsync with rsync://[2001:48a8:0:8:0:3:0:232]/gentoo-portage...
>>> Checking server timestamp ...
Welcome to lug.mtu.edu, the rsync server for


Reproducible: Always

Steps to Reproduce:
1. Set a specific IPv6 address for the SYNC line
2. emerge --sync
3. getaddrinfo will fail


Actual Results:  
It reports a failure, but then continues. It is as if it doesn't understand the bracket form for IPv6

Expected Results:  
It should understand that it has been given a direct IPv6 address.

The reason I hardcoded [2001:48a8:0:8:0:3:0:232] instead of using lug.mtu.edu is that it has both IPv4 and IPv6 and it was preferring IPv4 and I want it to use IPv6:

host lug.mtu.edu
lug.mtu.edu has address 141.219.155.230
lug.mtu.edu has IPv6 address 2001:48a8:0:8:0:3:0:232

[Comment 1 Zac Medico 2011-02-25 05:45:54 UTC]

The problem is this code:

proto, user_name, hostname, port = re.split(
	"(rsync|ssh)://([^:/]+@)?([^:/]*)(:[0-9]+)?", syncuri, maxsplit=4)[1:5]

Given your SYNC setting, this code incorrectly get hostname="[2001" from the ([^:/]*) group.

[Comment 2 Zac Medico 2011-02-25 06:07:06 UTC]

Created attachment 263753 [details, diff]
handle IPv6 [ip] in SYNC

This should fix it:

http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=0f065ee055741fe219187df3ad5fb58055a53902

[Comment 3 Tom Dickson 2011-02-25 06:12:23 UTC]

That gives me:


emerge --sync
!!! getaddrinfo failed for '[2001:48a8:0:8:0:3:0:232]': [Errno -2] Name or service not known
>>> Starting rsync with rsync://[2001:48a8:0:8:0:3:0:232]/gentoo-portage...
>>> Checking server timestamp ...
Welcome to lug.mtu.edu, the rsync server for


which is closer, but shouldn't getaddrinfo succeed when given an IP address? It works when I give it an IPv4 address.

[Comment 4 Zac Medico 2011-02-25 06:32:53 UTC]

Created attachment 263755 [details, diff]
handle IPv6 [ip] in SYNC

Now it's fixed to strip the brackets for getaddrinfo:

http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=4609f5da90f3d925255d68c2cacc1bda6814dfcf

[Comment 5 Tom Dickson 2011-02-25 06:35:23 UTC]

Seems to work for me!

[Comment 6 Zac Medico 2011-02-25 06:36:38 UTC]

Great, thanks for testing.

[Comment 7 Zac Medico 2011-03-02 05:40:09 UTC]

This is fixed in 2.1.9.42 and 2.2.0_alpha26.