1 /*
2  * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #include "compat.h"
18 
19 #ifdef __OpenBSD__
20 
21 # include <err.h>
22 # include <limits.h>
23 # include <stdlib.h>
24 # include <string.h>
25 # include <unistd.h>
26 
27 void
28 sandbox_network_process(void)
29 {
30 	if (pledge("stdio inet dns", NULL) == -1)
31 		err(1, "pledge");
32 }
33 
34 void
35 sandbox_ui_process(void)
36 {
37 	if (pledge("stdio tty", NULL) == -1)
38 		err(1, "pledge");
39 }
40 
41 void
42 sandbox_fs_process(void)
43 {
44 	char path[PATH_MAX];
45 
46         if (unveil("/tmp", "r") == -1)
47 		err(1, "unveil");
48 
49 	strlcpy(path, getenv("HOME"), sizeof(path));
50 	strlcat(path, "/Downloads", sizeof(path));
51 	if (unveil(path, "r") == -1)
52 		err(1, "unveil");
53 
54 	strlcpy(path, getenv("HOME"), sizeof(path));
55 	strlcat(path, "/.telescope", sizeof(path));
56 	if (unveil(path, "r") == -1)
57 		err(1, "unveil");
58 
59 	if (pledge("stdio rpath", NULL) == -1)
60 		err(1, "pledge");
61 }
62 
63 #else
64 
65 #warning "No sandbox for this OS"
66 
67 void
68 sandbox_network_process(void)
69 {
70 	return;
71 }
72 
73 void
74 sandbox_ui_process(void)
75 {
76 	return;
77 }
78 
79 void
80 sandbox_fs_process(void)
81 {
82 	return;
83 }
84 
85 #endif