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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <AK/Assertions.h>
28#include <AK/LogStream.h>
29#include <stdio.h>
30#include <stdlib.h>
31#include <sys/wait.h>
32#include <unistd.h>
33
34int main(int argc, char** argv)
35{
36 if (pledge("stdio tty proc exec", nullptr) < 0) {
37 perror("pledge");
38 return 1;
39 }
40
41 if (unveil("/bin/Shell", "x") < 0) {
42 perror("unveil");
43 return 1;
44 }
45
46 unveil(nullptr, nullptr);
47
48 if (argc < 2)
49 return -1;
50
51 dbgprintf("Starting console server on %s\n", argv[1]);
52
53 while (true) {
54 dbgprintf("Running shell on %s\n", argv[1]);
55
56 auto child = fork();
57 if (!child) {
58 int rc = execl("/bin/Shell", "Shell", nullptr);
59 ASSERT(rc < 0);
60 perror("execl");
61 exit(127);
62 } else {
63 int wstatus;
64 waitpid(child, &wstatus, 0);
65 dbgprintf("Shell on %s exited with code %d\n", argv[1], WEXITSTATUS(wstatus));
66 }
67 }
68}