My app reads the registry to figure out network information, in
particular it queries the [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows
NT\CurrentVersion\NetworkCards\] key to discover network cards, then
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services] to figure out the
IP address of each one (this program can bind to multiple adaptors).
...
a) In initial setup, ie when you install Wine
b) At Wine startup
c) On demand, ie by writing special cases into the registry access code.

Clearly c) because that will work properly even when doing hotplugging of pcmcia cards and doing interactive dialup to an isp. Might want to cache it for 10 seconds or something, and you might need to worry about what happens when programs are reading the reg entries *while* an interface is changing. (heh.)

BTW there is a system call getifaddrs on many flavors of Unix that
does this kind of query, and there's a library implementation
of it for linux.  See
http://www.kegel.com/dkftpbench/dkftpbench-0.45/getifaddrs.c
http://www.kegel.com/dkftpbench/dkftpbench-0.45/getifaddrs.h
The registry code should probably just call this function.
- Dan
--
Dan Kegel
http://www.kegel.com
http://counter.li.org/cgi-bin/runscript/display-person.cgi?user=78045




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