从程序重启linux

Question

This question has been asked before: How to restart Linux from inside a C++ program?

However, none of the answers seem to work for me.

Here's my problem:

I have a program on a piece of hardware. I can log in as root and run it without any issues. However, if I login as a different user with root priveleges, the program executes fine but does not reboot as it should. It only shuts down the current Telnet session.

To reboot, I've used system(reboot) . So far I have tried:

sync();
reboot(RB_POWER_OFF);

And

execl("/sbin/reboot","reboot",NULL,NULL);

to no avail.

(I'm not sure, if I've used execl correctly. It is the first time I use it. Please correct me if I messed up).

Any help would be appreciated.

Edit:

/data/local/sbin # cat /etc/passwd
root:x:0:0:root:/root:/bin/sh
service:54zljpSAe:0:0:root:/root:/data/local/sbin/script

if I login as service, "script" will be run. The user has a list options to choose from. One of the options is to run the above mentioned program.

Edit:

Also worth mentioning: One of the options in the script is to reboot the system. If called from inside the script, it works. But I would like to call reboot from the program.

Answer 1

first of all, login to your system as "a different user with root priveleges" , and execute 'init 6', if system had been restarted ?

yes: use system("init 6"); in your program.

no: you have security issue, first you have to fix that.