Portmap RPC registration fails

Charles Wilson cygwin@cwilson.fastmail.fm
Thu May 10 04:41:00 GMT 2012

On 5/9/2012 2:20 PM, Corinna Vinschen wrote:
> On May  8 22:41, Ken wrote:
>> The above doesn't look like a plausible IPV6 address. I have IPV6 enabled on
>> my network adapter. Is it possible that portmap isn't compatible with IPV6?
>> That would explain why older code (such as CygWin NFS Server - IPV4) is able
>> to register with portmap.
> portmap and the entire sunrpc package is pretty old stuff.  They are not
> used anymore on Linux and BSD afaik, but there's replacement code in a
> not so easy portable way.
> Portmap and the rest of the sunrpc code is not overly complicated, though.
> With a bit of effort it should be possible to make it IPv6-aware.  However,
> http://cygwin.com/acronyms/#SHTDI

portmap is not IPv6-aware. There is a replacement, rpcbind, which does 
support IPv6.  I have a partially-ported version of that sitting on my 
hard drive, but it doesn't seem to actually work.  If any body is 
interested in using it as a starting point for a portmapper replacement 
on cygwin, I can make it available.

(I also have a simple rpc client and server package that can be used to 
test rpcbind)


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