1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
/***
This file is part of systemd
Copyright 2014 Tom Gundersen
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include "unaligned.h"
#include "sparse-endian.h"
#include "util.h"
static uint8_t data[] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
};
int main(int argc, const char *argv[]) {
uint8_t scratch[16];
assert_se(unaligned_read_be16(&data[0]) == 0x0001);
assert_se(unaligned_read_be16(&data[1]) == 0x0102);
assert_se(unaligned_read_be32(&data[0]) == 0x00010203);
assert_se(unaligned_read_be32(&data[1]) == 0x01020304);
assert_se(unaligned_read_be32(&data[2]) == 0x02030405);
assert_se(unaligned_read_be32(&data[3]) == 0x03040506);
assert_se(unaligned_read_be64(&data[0]) == 0x0001020304050607);
assert_se(unaligned_read_be64(&data[1]) == 0x0102030405060708);
assert_se(unaligned_read_be64(&data[2]) == 0x0203040506070809);
assert_se(unaligned_read_be64(&data[3]) == 0x030405060708090a);
assert_se(unaligned_read_be64(&data[4]) == 0x0405060708090a0b);
assert_se(unaligned_read_be64(&data[5]) == 0x05060708090a0b0c);
assert_se(unaligned_read_be64(&data[6]) == 0x060708090a0b0c0d);
assert_se(unaligned_read_be64(&data[7]) == 0x0708090a0b0c0d0e);
zero(scratch);
unaligned_write_be16(&scratch[0], 0x0001);
assert_se(memcmp(&scratch[0], &data[0], sizeof(uint16_t)) == 0);
zero(scratch);
unaligned_write_be16(&scratch[1], 0x0102);
assert_se(memcmp(&scratch[1], &data[1], sizeof(uint16_t)) == 0);
zero(scratch);
unaligned_write_be32(&scratch[0], 0x00010203);
assert_se(memcmp(&scratch[0], &data[0], sizeof(uint32_t)) == 0);
zero(scratch);
unaligned_write_be32(&scratch[1], 0x01020304);
assert_se(memcmp(&scratch[1], &data[1], sizeof(uint32_t)) == 0);
zero(scratch);
unaligned_write_be32(&scratch[2], 0x02030405);
assert_se(memcmp(&scratch[2], &data[2], sizeof(uint32_t)) == 0);
zero(scratch);
unaligned_write_be32(&scratch[3], 0x03040506);
assert_se(memcmp(&scratch[3], &data[3], sizeof(uint32_t)) == 0);
zero(scratch);
unaligned_write_be64(&scratch[0], 0x0001020304050607);
assert_se(memcmp(&scratch[0], &data[0], sizeof(uint64_t)) == 0);
zero(scratch);
unaligned_write_be64(&scratch[1], 0x0102030405060708);
assert_se(memcmp(&scratch[1], &data[1], sizeof(uint64_t)) == 0);
zero(scratch);
unaligned_write_be64(&scratch[2], 0x0203040506070809);
assert_se(memcmp(&scratch[2], &data[2], sizeof(uint64_t)) == 0);
zero(scratch);
unaligned_write_be64(&scratch[3], 0x030405060708090a);
assert_se(memcmp(&scratch[3], &data[3], sizeof(uint64_t)) == 0);
zero(scratch);
unaligned_write_be64(&scratch[4], 0x0405060708090a0b);
assert_se(memcmp(&scratch[4], &data[4], sizeof(uint64_t)) == 0);
zero(scratch);
unaligned_write_be64(&scratch[5], 0x05060708090a0b0c);
assert_se(memcmp(&scratch[5], &data[5], sizeof(uint64_t)) == 0);
zero(scratch);
unaligned_write_be64(&scratch[6], 0x060708090a0b0c0d);
assert_se(memcmp(&scratch[6], &data[6], sizeof(uint64_t)) == 0);
zero(scratch);
unaligned_write_be64(&scratch[7], 0x0708090a0b0c0d0e);
assert_se(memcmp(&scratch[7], &data[7], sizeof(uint64_t)) == 0);
}
|
