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      1 /* $NetBSD: t_sysctl.c,v 1.1 2014/08/09 07:04:03 gson Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2014 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __COPYRIGHT("@(#) Copyright (c) 2014\
     31  The NetBSD Foundation, inc. All rights reserved.");
     32 __RCSID("$NetBSD: t_sysctl.c,v 1.1 2014/08/09 07:04:03 gson Exp $");
     33 
     34 #include <sys/sysctl.h>
     35 #include <errno.h>
     36 #include <memory.h>
     37 
     38 #include <atf-c.h>
     39 
     40 ATF_TC(bufsize);
     41 ATF_TC_HEAD(bufsize, tc)
     42 {
     43 	atf_tc_set_md_var(tc, "descr",
     44 	        "Test sysctl integer reads with different buffer sizes");
     45 }
     46 ATF_TC_BODY(bufsize, tc)
     47 {
     48 	union {
     49 		int int_val;
     50 		unsigned char space[256];
     51 	} buf;
     52 	size_t len;
     53 	for (len = 0; len < sizeof(buf); len++) {
     54 		size_t oldlen = len;
     55 		int r;
     56 		memset(&buf, 0xFF, sizeof(buf));
     57 		r = sysctlbyname("kern.job_control", &buf, &oldlen, 0, (size_t) 0);
     58 		if (len < sizeof(int)) {
     59 			ATF_REQUIRE_EQ(r, -1);
     60 			ATF_REQUIRE_EQ(errno, ENOMEM);
     61 		} else {
     62 			ATF_REQUIRE_EQ(r, 0);
     63 			ATF_REQUIRE_EQ(buf.int_val, 1);
     64 			ATF_REQUIRE_EQ(oldlen, sizeof(int));
     65 		}
     66 	}
     67 }
     68 
     69 ATF_TP_ADD_TCS(tp)
     70 {
     71 	ATF_TP_ADD_TC(tp, bufsize);
     72 
     73 	return atf_no_error();
     74 }
     75