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Thank you for the quick response. &nbsp;I looked up some example code for this and it looks like it will work perfectly.
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Thank you for the quick response.  I looked up some example code for this and it looks like it will work perfectly.

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There's getifaddrs function, defined in ifaddr.h. Calling it will retrieve an array of interfaces and IP addresses.<br />
<a href="http://man7.org/linux/man-pages/man3/getifaddrs.3.html" rel="ugc">http://man7.org/linux/man-<wbr />pages/man3<wbr />/getifaddr<wbr />s.3.html</a>
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There's getifaddrs function, defined in ifaddr.h. Calling it will retrieve an array of interfaces and IP addresses.
http://man7.org/linux/man-pages/man3/getifaddrs.3.html [http://man7.org/linux/man-pages/man3/getifaddrs.3.html]

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Greetings,<br />
<br />
I have edited the /etc/network/interfaces file to provide me with several eth0:x interfaces. Now I want to programmatically determine which interface or IP address a request is coming through. <br />
<br />
For example; I have eth0:1 = 192.168.227.205 and eth0:2 = 192.168.227.206<br />
From my laptop I can ping either address.<br />
In linux I want to run a program that responds differently based on the IP address being hit. If .205 do this if .206 do that.<br />
<br />
How can I programmatically determine which IP address is being hit?
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Greetings,

I have edited the /etc/network/interfaces file to provide me with several eth0:x interfaces. Now I want to programmatically determine which interface or IP address a request is coming through. 

For example; I have eth0:1 = 192.168.227.205 and eth0:2 = 192.168.227.206
From my laptop I can ping either address.
In linux I want to run a program that responds differently based on the IP address being hit. If .205 do this if .206 do that.

How can I programmatically determine which IP address is being hit?

Programmatically determine which eth0:x interfaces is requesting data

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