/* $NetBSD: t_swab.c,v 1.2.52.1 2023/02/22 18:46:59 martin Exp $ */ /*- * Copyright (c) 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code was contributed to The NetBSD Foundation by Christos Zoulas. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #define MAXCHK 100 static void build(char *a, char *b, size_t n) { size_t i; for (i = 0; i < n; i += 2) { b[i + 1] = a[i] = (char)i; b[i] = a[i + 1] = (char)(i + 1); } if (n & 1) a[n - 1] = b[n - 1] = (char)~1; for (; n < MAXCHK; n++) a[n] = b[n] = (char)~0; } static void dump(const char *f, char *b, size_t l) { printf("%s ", f); while (l--) printf("%.2x ", (unsigned char)*b++); printf("\n"); } ATF_TC(swab_basic); ATF_TC_HEAD(swab_basic, tc) { atf_tc_set_md_var(tc, "descr", "Test swab results"); } ATF_TC_BODY(swab_basic, tc) { char a[MAXCHK], b[MAXCHK], r[MAXCHK]; size_t i; bool failed = false; for (i = 0; i < MAXCHK; i++) { build(a, b, i); (void)memset(r, ~0, MAXCHK); swab(a, r, i); if (i & 1) /* last byte unspecified if odd length */ r[i - 1] = (char )~1; if (memcmp(b, r, MAXCHK) != 0) { printf("pattern mismatch at %zu bytes\n", i); dump("expect:", b, MAXCHK); dump("result:", r, MAXCHK); failed = true; } } if (failed) atf_tc_fail_nonfatal("Check stdout for details"); } ATF_TP_ADD_TCS(tp) { ATF_TP_ADD_TC(tp, swab_basic); return atf_no_error(); }