1 /*
2 * This file is part of caps strace test.
3 *
4 * Copyright (c) 2014-2016 Dmitry V. Levin <ldv@altlinux.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #include "tests.h"
31 #include <errno.h>
32 #include <string.h>
33
34 extern int capget(int *, int *);
35 extern int capset(int *, const int *);
36
37 int
main(void)38 main(void)
39 {
40 const int data[] = { 2, 4, 0, 8, 16, 0 };
41 const int v1 = 0x19980330;
42 const int v2 = 0x20071026;
43 const int v3 = 0x20080522;
44
45 int * const head = tail_alloc(sizeof(int) * 2);
46 head[0] = v3;
47 head[1] = 0;
48 int * const tail_data = tail_alloc(sizeof(data));
49
50 capget(NULL, NULL);
51 capget(head + 2, tail_data);
52 capget(head, tail_data + ARRAY_SIZE(data));
53
54 if (capget(head, tail_data))
55 perror_msg_and_skip("capget");
56 if (head[0] != v3)
57 error_msg_and_skip("capget: v3 expected");
58
59 memcpy(tail_data, data, sizeof(data));
60
61 capset(NULL, NULL);
62 capset(head + 2, tail_data);
63
64 head[0] = 0xbadc0ded;
65 head[1] = 2718281828U;
66 capset(head, tail_data + ARRAY_SIZE(data) - 2);
67
68 head[0] = v2;
69 head[1] = 0;
70 capset(head, tail_data + ARRAY_SIZE(data) - 5);
71
72 memcpy(tail_data, data, sizeof(data));
73 head[0] = v3;
74 if (capset(head, tail_data) == 0 || errno != EPERM)
75 perror_msg_and_skip("capset");
76
77 memset(tail_data, 0, sizeof(data) / 2);
78 if (capset(head, tail_data) == 0 || errno != EPERM)
79 perror_msg_and_skip("capset");
80
81 memcpy(tail_data + ARRAY_SIZE(data) / 2, data, sizeof(data) / 2);
82 head[0] = v1;
83 if (capset(head, tail_data + ARRAY_SIZE(data) / 2) == 0 ||
84 errno != EPERM)
85 perror_msg_and_skip("capset");
86
87 return 0;
88 }
89