1 /* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 #undef NDEBUG
3 #include "k5-platform.h"
4
5 int
main(void)6 main(void)
7 {
8 /* Test some low-level assumptions the Kerberos code depends
9 on. */
10
11 union {
12 uint64_t n64;
13 uint32_t n32;
14 uint16_t n16;
15 unsigned char b[9];
16 } u;
17 static unsigned char buf[9] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 };
18
19 assert(load_64_be(buf+1) == 0x0102030405060708LL);
20 assert(load_64_le(buf+1) == 0x0807060504030201LL);
21 assert(load_32_le(buf+2) == 0x05040302);
22 assert(load_32_be(buf+2) == 0x02030405);
23 assert(load_16_be(buf+3) == 0x0304);
24 assert(load_16_le(buf+3) == 0x0403);
25 u.b[0] = 0;
26 assert((store_64_be(0x0102030405060708LL, u.b+1), !memcmp(buf, u.b, 9)));
27 u.b[1] = 9;
28 assert((store_64_le(0x0807060504030201LL, u.b+1), !memcmp(buf, u.b, 9)));
29 u.b[2] = 10;
30 assert((store_32_be(0x02030405, u.b+2), !memcmp(buf, u.b, 9)));
31 u.b[3] = 11;
32 assert((store_32_le(0x05040302, u.b+2), !memcmp(buf, u.b, 9)));
33 u.b[4] = 12;
34 assert((store_16_be(0x0304, u.b+3), !memcmp(buf, u.b, 9)));
35 u.b[4] = 13;
36 assert((store_16_le(0x0403, u.b+3), !memcmp(buf, u.b, 9)));
37 /* Verify that load_*_n properly does native format. Assume
38 the unaligned thing is okay. */
39 u.n64 = 0x090a0b0c0d0e0f00LL;
40 assert(load_64_n((unsigned char *) &u.n64) == 0x090a0b0c0d0e0f00LL);
41 u.n32 = 0x06070809;
42 assert(load_32_n((unsigned char *) &u.n32) == 0x06070809);
43 u.n16 = 0x0a0b;
44 assert(load_16_n((unsigned char *) &u.n16) == 0x0a0b);
45
46 return 0;
47 }
48