1 /*
2 * This file and its contents are supplied under the terms of the
3 * Common Development and Distribution License ("CDDL"), version 1.0.
4 * You may only use this file in accordance with the terms of version
5 * 1.0 of the CDDL.
6 *
7 * A full copy of the text of the CDDL should have accompanied this
8 * source. A copy of the CDDL is also available via the Internet at
9 * http://www.illumos.org/license/CDDL.
10 */
11
12 /*
13 * Copyright 2016 Joyent, Inc.
14 */
15
16 /*
17 * Test endian(3C).
18 */
19
20 #include <sys/types.h>
21 #include <endian.h>
22 #include <sys/debug.h>
23
24 #ifndef BIG_ENDIAN
25 #error "Missing BIG_ENDIAN definition"
26 #endif
27
28 #ifndef LITTLE_ENDIAN
29 #error "Missing LITTLE_ENDIAN definition"
30 #endif
31
32 static void
endian_fromhost(void)33 endian_fromhost(void)
34 {
35 uint16_t val16 = 0x1122;
36 uint32_t val32 = 0x11223344;
37 uint64_t val64 = 0x1122334455667788ULL;
38 uint16_t ebe16, ele16, test16;
39 uint32_t ebe32, ele32, test32;
40 uint64_t ebe64, ele64, test64;
41
42 #ifdef _LITTLE_ENDIAN
43 ebe16 = 0x2211;
44 ebe32 = 0x44332211UL;
45 ebe64 = 0x8877665544332211ULL;
46 ele16 = 0x1122;
47 ele32 = 0x11223344UL;
48 ele64 = 0x1122334455667788ULL;
49 #elif _BIG_ENDIAN
50 ele16 = 0x2211;
51 ele32 = 0x44332211UL;
52 ele64 = 0x8877665544332211ULL;
53 ebe16 = 0x1122;
54 ebe32 = 0x11223344UL;
55 ebe64 = 0x1122334455667788ULL;
56 #else
57 #error "Unknown byte order"
58 #endif /* _LITTLE_ENDIAN */
59
60 test16 = htobe16(val16);
61 VERIFY3U(test16, ==, ebe16);
62 test32 = htobe32(val32);
63 VERIFY3U(test32, ==, ebe32);
64 test64 = htobe64(val64);
65 VERIFY3U(test64, ==, ebe64);
66
67 test16 = htole16(val16);
68 VERIFY3U(test16, ==, ele16);
69 test32 = htole32(val32);
70 VERIFY3U(test32, ==, ele32);
71 test64 = htole64(val64);
72 VERIFY3U(test64, ==, ele64);
73 }
74
75 static void
endian_frombig(void)76 endian_frombig(void)
77 {
78 uint16_t val16 = 0x1122;
79 uint32_t val32 = 0x11223344;
80 uint64_t val64 = 0x1122334455667788ULL;
81 uint16_t e16, test16;
82 uint32_t e32, test32;
83 uint64_t e64, test64;
84
85 #ifdef _LITTLE_ENDIAN
86 e16 = 0x2211;
87 e32 = 0x44332211UL;
88 e64 = 0x8877665544332211ULL;
89 #elif _BIG_ENDIAN
90 e16 = 0x1122;
91 e32 = 0x11223344UL;
92 e64 = 0x1122334455667788ULL;
93 #else
94 #error "Unknown byte order"
95 #endif /* _LITTLE_ENDIAN */
96
97 test16 = be16toh(val16);
98 VERIFY3U(test16, ==, e16);
99 test16 = betoh16(val16);
100 VERIFY3U(test16, ==, e16);
101
102 test32 = be32toh(val32);
103 VERIFY3U(test32, ==, e32);
104 test32 = betoh32(val32);
105 VERIFY3U(test32, ==, e32);
106
107 test64 = be64toh(val64);
108 VERIFY3U(test64, ==, e64);
109 test64 = betoh64(val64);
110 VERIFY3U(test64, ==, e64);
111 }
112
113 static void
endian_fromlittle(void)114 endian_fromlittle(void)
115 {
116 uint16_t val16 = 0x1122;
117 uint32_t val32 = 0x11223344;
118 uint64_t val64 = 0x1122334455667788ULL;
119 uint16_t e16, test16;
120 uint32_t e32, test32;
121 uint64_t e64, test64;
122
123 #ifdef _LITTLE_ENDIAN
124 e16 = 0x1122;
125 e32 = 0x11223344UL;
126 e64 = 0x1122334455667788ULL;
127 #elif _BIG_ENDIAN
128 e16 = 0x2211;
129 e32 = 0x44332211UL;
130 e64 = 0x8877665544332211ULL;
131 #else
132 #error "Unknown byte order"
133 #endif /* _LITTLE_ENDIAN */
134
135 test16 = le16toh(val16);
136 VERIFY3U(test16, ==, e16);
137 test16 = letoh16(val16);
138 VERIFY3U(test16, ==, e16);
139
140 test32 = le32toh(val32);
141 VERIFY3U(test32, ==, e32);
142 test32 = letoh32(val32);
143 VERIFY3U(test32, ==, e32);
144
145 test64 = le64toh(val64);
146 VERIFY3U(test64, ==, e64);
147 test64 = letoh64(val64);
148 VERIFY3U(test64, ==, e64);
149 }
150
151 int
main(void)152 main(void)
153 {
154 endian_fromhost();
155 endian_frombig();
156 endian_fromlittle();
157 return (0);
158 }
159