get/set ifconfig entries through by programmatically

John E Hein jhein at
Sat Jun 2 00:16:37 UTC 2007

bsenthil wrote at 01:46 +0530 on Jun  2, 2007:
 > Is it possible to get/set  ifconfig entries through by programmatically. 
 > If yes, please send me the code snippet ...
 > I am trying to get/set ipaddress by executing the command "ifconfig" .

- use SIOCAIFADDR ioctl; man netintro(4)
- see source code in /usr/src/sbin/ifconfig
- the hacky approach using system(3): system("ifconfig fxp0");

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