On Wed, Jun 23, 2010 at 09:23:36AM +0200, Maximilian Wilhelm wrote:
Anno domini 2010 IKI-サガル バルウェ scripsit:
Hi!
Thanks for such a quick reply.
No problem :)
Did I get you right, that you have a 'virDomainPtr' as basis and want a mapping from that to the IP? Yes. Thats what I want to do.
I guess one way could be to get the virConnectionPtr conn_ptr = virDomainGetConnect (domain_ptr);
And then query the hostname virConnectGetHostname (conn_ptr); or the uri virConnectGetURI (conn_ptr);
and resolve the hostname or extract the IP/host from the URI and resolve that.
Yes, I thought of this too. But I was hoping that the LibvirtAPI has some way of giving me the host IP Address directly, instead of resolving it myself.
I don't know of any and I wouldn't know which IP to choose if there were multiple.
But then again, how would I resolve the IP Address from the hostname? Can you please guide me on this.
In short:
struct hostent *hostent; hostent = gethostbyname (char *hostname); if (hostent) { for (i = 0; hostent->h_addr_list[i]; i++) printf ("%s, ", hostent->h_addr_list[i]); printf ("\n"); }
Never use gethostbyname in any new code. It is long since obsolete, not thread safe and is hardcoded to only work with IPv4. There is a good exmaple of how to use the modern replacemenbt, getaddrinfo(), to resolve hostnames here: http://people.redhat.com/drepper/userapi-ipv6.html Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://deltacloud.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|