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/* $NetBSD: t_swab.c,v 1.2 2011/07/07 08:27:36 jruoho 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 <atf-c.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <err.h>
#define MAXCHK 100
static void
build(char *a, char *b, size_t n) {
size_t i;
n >>= 1;
for (i = 0; i < n; i += 2) {
b[i+1] = a[i] = (char)i;
b[i] = a[i+1] = (char)(i+1);
}
for (n <<= 1; 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;
for (i = 0; i < MAXCHK; i += 2) {
build(a, b, i);
(void)memset(r, ~0, MAXCHK);
swab(a, r, i);
if (memcmp(b, r, MAXCHK) != 0) {
fprintf(stderr, "pattern mismatch at %lu bytes",
(unsigned long)i);
dump("expect:", b, MAXCHK);
dump("result:", r, MAXCHK);
atf_tc_fail("Check stderr for details");
}
}
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, swab_basic);
return atf_no_error();
}
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