Hello, Chris
You have asked "Have you seen NetworkInterface.getName() return names
with ‘_’, ’.’, or ‘:’ ,or is this theoretical?"
I can answer your question. I have named one of network interfaces on my
Linux desktop like "eth0.1_55".
ifconfig says:
eth0.1_55 Link encap:Ethernet HWaddr 08:00:27:10:c0:3e
inet addr:10.162.82.115 Bcast:10.162.83.255 Mask:255.255.254.0
inet6 addr: 2606:b400:81c:1050:6568:8bee:d39b:68aa/64
Scope:Global
inet6 addr: 2606:b400:81c:1044:a00:27ff:fe10:c03e/64 Scope:Global
inet6 addr: 2606:b400:81c:1050:a00:27ff:fe10:c03e/64 Scope:Global
inet6 addr: fe80::a00:27ff:fe10:c03e/64 Scope:Link
inet6 addr: 2606:b400:81c:1044:6568:8bee:d39b:68aa/64
Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1198 errors:0 dropped:0 overruns:0 frame:0
TX packets:255 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:144325 (144.3 KB) TX bytes:31843 (31.8 KB)
Simple java code
Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
System.out.println(nis.nextElement().getName());
returns exactly "eth0.1_55".
This means we can include dot "." and underscore "_" symbols to URI
scope id.
-Konstantin
On 11.12.2014 18:29, Chris Hegarty wrote:
On 11 Dec 2014, at 11:09, Konstantin Shefov <konstantin.she...@oracle.com>
wrote:
CC'ed core-libs-dev@openjdk.java.net
On 10.12.2014 18:21, Konstantin Shefov wrote:
Hello,
Please, review the bug fix: https://bugs.openjdk.java.net/browse/JDK-6933879
Webrev: http://cr.openjdk.java.net/~kshefov/6933879/webrev.00
It is suggested to add some more symbols allowed for scope id in IPv6 URI, namely "_",
"." and ":", because these symbols may be included in network interface names. Now only
alphanumeric characters are allowed to be in a scope id.
From Inet6Address, "Textual representation of IPv6 scoped addresses” [1] :
“…
As a string. This must be the exact string that is returned by
NetworkInterface.getName() for the particular interface in
question. When an Inet6Address is created in this way, the
numeric scope-id is determined at the time the object is
created by querying the relevant NetworkInterface."
Have you seen NetworkInterface.getName() return names with ‘_’, ’.’, or ‘:’
,or is this theoretical ?
-Chris.
[1] http://docs.oracle.com/javase/8/docs/api/java/net/Inet6Address.html#scoped
Thanks
-Konstantin
