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Serenity Operating System
1/*
2 * Copyright (c) 2020, the SerenityOS developers.
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#include <LibCore/ArgsParser.h>
8#include <LibCore/DirIterator.h>
9#include <LibCore/System.h>
10#include <LibMain/Main.h>
11#include <stdlib.h>
12#include <unistd.h>
13
14ErrorOr<int> serenity_main(Main::Arguments arguments)
15{
16 TRY(Core::System::pledge("stdio rpath exec"));
17
18 bool ignore_env = false;
19 StringView split_string {};
20 Vector<DeprecatedString> values;
21
22 Core::ArgsParser args_parser;
23 args_parser.set_stop_on_first_non_option(true);
24
25 args_parser.add_option(ignore_env, "Start with an empty environment", "ignore-environment", 'i');
26 args_parser.add_option(split_string, "Process and split S into separate arguments; used to pass multiple arguments on shebang lines", "split-string", 'S', "S");
27
28 args_parser.add_positional_argument(values, "Environment and commands", "env/command", Core::ArgsParser::Required::No);
29 args_parser.parse(arguments);
30
31 if (ignore_env)
32 clearenv();
33
34 size_t argv_start;
35 for (argv_start = 0; argv_start < values.size(); ++argv_start) {
36 if (values[argv_start].contains('=')) {
37 putenv(const_cast<char*>(values[argv_start].characters()));
38 } else {
39 break;
40 }
41 }
42
43 Vector<StringView> new_argv;
44 if (!split_string.is_empty()) {
45 for (auto view : split_string.split_view(' ')) {
46 new_argv.append(view);
47 }
48 }
49
50 for (size_t i = argv_start; i < values.size(); ++i) {
51 new_argv.append(values[i]);
52 }
53
54 if (new_argv.size() == 0) {
55 for (auto entry = environ; *entry != nullptr; ++entry)
56 outln("{}", *entry);
57
58 return 0;
59 }
60
61 TRY(Core::System::exec(new_argv[0], new_argv, Core::System::SearchInPath::Yes));
62 return 1;
63}