1272343Sngie/* $NetBSD: t_swab.c,v 1.2 2011/07/07 08:27:36 jruoho Exp $ */ 2272343Sngie 3272343Sngie/*- 4272343Sngie * Copyright (c) 2001 The NetBSD Foundation, Inc. 5272343Sngie * All rights reserved. 6272343Sngie * 7272343Sngie * This code was contributed to The NetBSD Foundation by Christos Zoulas. 8272343Sngie * 9272343Sngie * Redistribution and use in source and binary forms, with or without 10272343Sngie * modification, are permitted provided that the following conditions 11272343Sngie * are met: 12272343Sngie * 1. Redistributions of source code must retain the above copyright 13272343Sngie * notice, this list of conditions and the following disclaimer. 14272343Sngie * 2. Redistributions in binary form must reproduce the above copyright 15272343Sngie * notice, this list of conditions and the following disclaimer in the 16272343Sngie * documentation and/or other materials provided with the distribution. 17272343Sngie * 18272343Sngie * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19272343Sngie * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20272343Sngie * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21272343Sngie * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22272343Sngie * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23272343Sngie * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24272343Sngie * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25272343Sngie * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26272343Sngie * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27272343Sngie * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28272343Sngie * POSSIBILITY OF SUCH DAMAGE. 29272343Sngie */ 30272343Sngie#include <atf-c.h> 31272343Sngie 32272343Sngie#include <stdio.h> 33272343Sngie#include <stdlib.h> 34272343Sngie#include <string.h> 35272343Sngie#include <unistd.h> 36272343Sngie 37272343Sngie#include <err.h> 38272343Sngie 39272343Sngie#define MAXCHK 100 40272343Sngie 41272343Sngiestatic void 42272343Sngiebuild(char *a, char *b, size_t n) { 43272343Sngie size_t i; 44272343Sngie 45272343Sngie n >>= 1; 46272343Sngie for (i = 0; i < n; i += 2) { 47272343Sngie b[i+1] = a[i] = (char)i; 48272343Sngie b[i] = a[i+1] = (char)(i+1); 49272343Sngie } 50272343Sngie for (n <<= 1; n < MAXCHK; n++) 51272343Sngie a[n] = b[n] = (char)~0; 52272343Sngie} 53272343Sngie 54272343Sngiestatic void 55272343Sngiedump(const char *f, char *b, size_t l) 56272343Sngie{ 57272343Sngie 58272343Sngie printf("%s ", f); 59272343Sngie while (l--) 60272343Sngie printf("%.2x ", (unsigned char)*b++); 61272343Sngie printf("\n"); 62272343Sngie} 63272343Sngie 64272343SngieATF_TC(swab_basic); 65272343SngieATF_TC_HEAD(swab_basic, tc) 66272343Sngie{ 67272343Sngie 68272343Sngie atf_tc_set_md_var(tc, "descr", "Test swab results"); 69272343Sngie} 70272343Sngie 71272343SngieATF_TC_BODY(swab_basic, tc) 72272343Sngie{ 73272343Sngie char a[MAXCHK], b[MAXCHK], r[MAXCHK]; 74272343Sngie size_t i; 75272343Sngie 76272343Sngie for (i = 0; i < MAXCHK; i += 2) { 77272343Sngie build(a, b, i); 78272343Sngie (void)memset(r, ~0, MAXCHK); 79272343Sngie swab(a, r, i); 80272343Sngie if (memcmp(b, r, MAXCHK) != 0) { 81272343Sngie fprintf(stderr, "pattern mismatch at %lu bytes", 82272343Sngie (unsigned long)i); 83272343Sngie dump("expect:", b, MAXCHK); 84272343Sngie dump("result:", r, MAXCHK); 85272343Sngie atf_tc_fail("Check stderr for details"); 86272343Sngie } 87272343Sngie } 88272343Sngie} 89272343Sngie 90272343SngieATF_TP_ADD_TCS(tp) 91272343Sngie{ 92272343Sngie ATF_TP_ADD_TC(tp, swab_basic); 93272343Sngie 94272343Sngie return atf_no_error(); 95272343Sngie} 96