1 /* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */ 2 #undef NDEBUG 3 #include "k5-platform.h" 4 5 int 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