jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#include <LibCore/ArgsParser.h>
8#include <LibCore/System.h>
9#include <LibMain/Main.h>
10#include <unistd.h>
11
12ErrorOr<int> serenity_main(Main::Arguments arguments)
13{
14 StringView new_jail_name;
15 Vector<StringView> command;
16 Optional<size_t> existing_jail_index;
17 Core::ArgsParser args_parser;
18 bool preserve_env = false;
19 args_parser.set_stop_on_first_non_option(true);
20 args_parser.add_option(preserve_env, "Preserve user environment when running command", "preserve-env", 'E');
21 args_parser.add_option(new_jail_name, "Create a new jail with a name", "jail-name", 'n', "New jail name");
22 args_parser.add_option(existing_jail_index, "Use an existing jail index instead of creating new jail", "jail-index", 'i', "Existing jail index");
23 args_parser.add_positional_argument(command, "Command to execute", "command");
24 args_parser.parse(arguments);
25
26 TRY(Core::System::pledge("stdio rpath exec id jail tty"));
27
28 if (existing_jail_index.has_value() && !new_jail_name.is_null())
29 return Error::from_string_view("Can't launch process in a new jail with a name and use an existing jail index."sv);
30
31 if (existing_jail_index.has_value()) {
32 TRY(Core::System::join_jail(existing_jail_index.value()));
33 } else {
34 u64 new_jail_index = TRY(Core::System::create_jail(new_jail_name.is_null() ? ""sv : new_jail_name));
35 TRY(Core::System::join_jail(new_jail_index));
36 }
37 TRY(Core::System::exec_command(command, preserve_env));
38 return 0;
39}