1 /*- 2 * Copyright (c) 2021 M. Warner Losh <imp@FreeBSD.org> 3 * 4 * SPDX-License-Identifier: BSD-2-Clause 5 */ 6 7 #include <byteswap.h> 8 9 #include <atf-c.h> 10 11 ATF_TC(byteswap); ATF_TC_HEAD(byteswap,tc)12 ATF_TC_HEAD(byteswap, tc) 13 { 14 atf_tc_set_md_var(tc, "descr", "Test swapping macros in <byteswap.h>"); 15 } 16 ATF_TC_BODY(byteswap,tc)17 ATF_TC_BODY(byteswap, tc) 18 { 19 uint16_t ui16; 20 uint32_t ui32; 21 uint64_t ui64; 22 23 /* glibc defines the {__,}bswap_{16,32,64} */ 24 #ifndef __bswap_16 25 atf_tc_fail_nonfatal("__bswap_16 not defined"); 26 #endif 27 #ifndef bswap_16 28 atf_tc_fail_nonfatal("bswap_16 not defined"); 29 #endif 30 #ifndef __bswap_32 31 atf_tc_fail_nonfatal("__bswap_32 not defined"); 32 #endif 33 #ifndef bswap_32 34 atf_tc_fail_nonfatal("bswap_32 not defined"); 35 #endif 36 #ifndef __bswap_64 37 atf_tc_fail_nonfatal("__bswap_64 not defined"); 38 #endif 39 #ifndef bswap_64 40 atf_tc_fail_nonfatal("bswap_64 not defined"); 41 #endif 42 43 /* glibc does not define bswap{16,32,64} */ 44 #ifdef bswap16 45 atf_tc_fail_nonfatal("bswap16 improperly defined"); 46 #endif 47 #ifdef bswap32 48 atf_tc_fail_nonfatal("bswap32 improperly defined"); 49 #endif 50 #ifdef bswap64 51 atf_tc_fail_nonfatal("bswap64 improperly defined"); 52 #endif 53 54 ui16 = 0x1234; 55 ATF_REQUIRE_MSG(0x3412 == bswap_16(ui16), 56 "bswap16(%#x) != 0x3412 instead %#x\n", ui16, bswap_16(ui16)); 57 58 ui32 = 0x12345678ul; 59 ATF_REQUIRE_MSG(0x78563412ul == bswap_32(ui32), 60 "bswap32(%#lx) != 0x78563412 instead %#lx\n", 61 (unsigned long)ui32, (unsigned long)bswap_32(ui32)); 62 63 ui64 = 0x123456789abcdef0ull; 64 ATF_REQUIRE_MSG(0xf0debc9a78563412ull == bswap_64(ui64), 65 "bswap64(%#llx) != 0x3412 instead %#llx\n", 66 (unsigned long long)ui64, (unsigned long long)bswap_64(ui64)); 67 68 } 69 ATF_TP_ADD_TCS(tp)70 ATF_TP_ADD_TCS(tp) 71 { 72 73 ATF_TP_ADD_TC(tp, byteswap); 74 75 return atf_no_error(); 76 } 77