Attaching using username instead of uid fails

[GoogleCodeExporter]

Good evening,

I've been playing around with go9p and libixp (http://repo.cat-v.org/libixp/) 
and I think I spotted a bug when they interact.

To reproduce,
1. launch any of srv/examples on localhost:5640
2. run "ixpc -a 'tcp!127.0.0.1!5640' ls"
3. ixpc fails with "unknown user: 22"

cl and ls in clnt/examples are fine. With -d=1 on the server, I can see that 
they send Tattach messages looking like
Tattach tag 0 fid 0 afid 4294967295 uname '' nuname 1001 aname ''
whereas ixpc does
Tattach tag 0 fid 1 afid 4294967295 uname 'louis' nuname 4294967295 aname ''

I understand that the go9p programs put the nil value in uname and rely on 
nuname and that ixpc does the exact opposite.

I figured out 22 means EINVAL, the invalid user seems to be the 0xFFFFFFFF id. 
As far as I know, this report could also be considered an issue with libixp.

I haven't tried connecting a go9p client and a libixp server over tcp.

Louis

Original issue reported on code.google.com by lo...@bettens.org on 23 Jul 2014 at 8:29

[vat9]

Use of "os/user" unfortunately means that cross compiling during go build may not work as CGO_ENABLED=1 is required.

[mischief]

closed by #44 ?

[sqweek]

Yes this is fixed, I think by c1542d0 (which was also applied to the code.google.com repo while it was active).