Restarting DHCP from C

[NoahSteam]

Is there a way to restart dhcp through c? I want to do the equivalent of 'dhcpcd restart' through c. I figure there has to be a way, but I can't figure out how. Any help would be appreciated. Thanks.

[likwid]

You use the system() to do things like this.
So something like:

statRet = system("/sbin/service dhcpd restart");

if (statRet != 0) fprintf(stderr, "Error restarting dhcpd\n");

System returns the status of the process it forks. man 3 system is your friend. Note that restarts the dhcpd, the server. If you mean your dhcp client, it's probably dhcpcd.

[NoahSteam]

cool thank you.