Winsock questions: IP returning or registry reading 2

[vlitzer]

Im working in a crude server/client architecture. So i want to know if is there a function that returns the self IP?. Ive read some articles that i can acces the w registry, and read from there, but i dont know how to read it. Anyone know?

 

[markharr]

The current IP address will be in either this registry value for a fixed IP address:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\<Adapter GUID here>\IPAddress

or here for DHCP addresses:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\<Adapter GUID here>\DhcpIPAddress

The registry is accessed using Win32 API calls. For instance a registry value is read using RegQueryValue(). However there are a few prerequisite steps that need to be taken to read a registry value. I will leave that as an exercise for you, don't worry, it's not that difficult.

Here is a high level pointer into the MSDN documentation that you can drill down into to learn about using the registry functions:

http://msdn.microsoft.com/library/en-us/sysinfo/regapi_9bzt.asp

You may have to paste that URL in two passes.

 

[vlitzer]

wow... thanks so much. The information provided is very usefull to me, thanks a lot!

ejemmm: this is off topic, but... im using mfc's CAsyncSocket... is there a function that returns, if im the server, the cliente IP, after connected?

 

[williamu]

GetPeerName will return the IP and Port of the connected socket.

William
Software Engineer
ICQ No. 56047340

 

[vlitzer]

thanks again ill try it out!

 

[jryan224]

I was not able to find reference to GetPeerName (as suggested by williamu) at allapi.com or in the api viewer. Where can I find it? I need to get the user's ip address from w/in a visual foxpro6 application to be able to pass it to a third party storage application (lexmark/scopeware).

thanks for your help

 

[markharr]

Try MSDN. Here is a pointer directly to CAsyncSocket:GetPeerName

http://msdn.microsoft.com/library/d...b/html/_mfc_CAsyncSocket.3a3a.GetPeerName.asp

You may have to paste that in a couple of parts.