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Kernel: Only allow superuser to halt() the system (#342)

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Following the discussion in #334, shutdown must also have root-only
run permissions.
This commit is contained in:
Jesse 2019-07-19 21:08:26 +10:00 • committed by Andreas Kling
parent cd76b691fb
commit a5d80f7e3b
6 changed files with 31 additions and 10 deletions
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9
Userland/shutdown.cpp
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@ -1,5 +1,6 @@
#include <Kernel/Syscall.h>
#include <LibCore/CArgsParser.h>
#include <stdio.h>
#include <unistd.h>
int main(int argc, char** argv)
{
@ -8,8 +9,10 @@ int main(int argc, char** argv)
CArgsParserResult args = args_parser.parse(argc, argv);
if (args.is_present("n")) {
syscall(SC_halt);
return 0;
if (halt() < 0) {
perror("shutdown");
return 1;
}
} else {
args_parser.print_usage();
return 0;