/* $NetBSD: t_sysctl.c,v 1.1 2014/08/09 07:04:03 gson Exp $ */

/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
* All rights reserved.
*
* 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 <sys/cdefs.h>
__COPYRIGHT("@(#) Copyright (c) 2014\
The NetBSD Foundation, inc. All rights reserved.");
__RCSID("$NetBSD: t_sysctl.c,v 1.1 2014/08/09 07:04:03 gson Exp $");

#include <sys/sysctl.h>
#include <errno.h>
#include <memory.h>

#include <atf-c.h>

ATF_TC(bufsize);
ATF_TC_HEAD(bufsize, tc)
{
       atf_tc_set_md_var(tc, "descr",
               "Test sysctl integer reads with different buffer sizes");
}
ATF_TC_BODY(bufsize, tc)
{
       union {
               int int_val;
               unsigned char space[256];
       } buf;
       size_t len;
       for (len = 0; len < sizeof(buf); len++) {
               size_t oldlen = len;
               int r;
               memset(&buf, 0xFF, sizeof(buf));
               r = sysctlbyname("kern.job_control", &buf, &oldlen, 0, (size_t) 0);
               if (len < sizeof(int)) {
                       ATF_REQUIRE_EQ(r, -1);
                       ATF_REQUIRE_EQ(errno, ENOMEM);
               } else {
                       ATF_REQUIRE_EQ(r, 0);
                       ATF_REQUIRE_EQ(buf.int_val, 1);
                       ATF_REQUIRE_EQ(oldlen, sizeof(int));
               }
       }
}

ATF_TP_ADD_TCS(tp)
{
       ATF_TP_ADD_TC(tp, bufsize);

       return atf_no_error();
}