Kernel/Userland: Add a halt syscall, and a shutdown binary to invoke it

1 files changed, 17 insertions, 0 deletions

diff --git a/Userland/shutdown.cpp b/Userland/shutdown.cpp
new file mode 100644
index 0000000000..7884f12c15
--- /dev/null
+++ b/Userland/shutdown.cpp
@@ -0,0 +1,17 @@
+#include <Kernel/Syscall.h>
+#include <LibCore/CArgsParser.h>
+
+int main(int argc, char** argv)
+{
+    CArgsParser args_parser("shutdown");
+    args_parser.add_arg("n", "shut down now");
+    CArgsParserResult args = args_parser.parse(argc, (const char**)argv);
+
+    if (args.is_present("n")) {
+        syscall(SC_halt);
+        return 0;
+    } else {
+        args_parser.print_usage();
+        return 0;
+    }
+}