poweroff in C

[kantu]

How can i implement poweroff and reboot commands in C programming language ?

[creeping death]

Originally Posted by kantu

How can i implement poweroff and reboot commands in C programming language ?

use system()
and call the OS's reboot command or shutdown command....

[kantu]

I dont want to use system() or exec .
I want to implement poweroff and reboot in C itself without the help of inbuilt system commands (poweroff or shutdown)

[brunson]

Then download the source for poweroff and reboot.

[kantu]

i tried hard and am not able to find source codes also
I searched many forums with this similar question but found no solution

[brunson]

Originally Posted by kantu

i tried hard and am not able to find source codes also
I searched many forums with this similar question but found no solution

foxtrot(~)$ which poweroff
/usr/bin/poweroff
foxtrot(~)$ rpm -qf /usr/bin/poweroff
usermode-1.100-2.i586
foxtrot(~)$ sudo yumdownloader --source usermode
[sudo] password for brunson: 
0 packages excluded due to repository protections
usermode-1.100-2.src.rpm                                 | 357 kB     00:01     
foxtrot(~)$ rpm -i usermode-1.100-2.src.rpm 
foxtrot(~)$ cd rpmbuild/SOURCES/
foxtrot(~/rpmbuild/SOURCES)$ ls -l usermode-1.100.tar.bz2 
-rw-rw-r--. 1 brunson brunson 327134 2009-04-14 05:33 usermode-1.100.tar.bz2

[creeping death]

take a look at sysvinit package

http://tldp.org/LDP/lfs/5.0/html/app.../sysvinit.html