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/* $OpenBSD: t_syscall.c,v 1.1.1.1 2019/11/19 19:57:04 bluhm Exp $ */
/* $NetBSD: t_syscall.c,v 1.3 2018/05/28 07:55:56 martin Exp $ */
/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Martin Husemann.
*
* 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 "macros.h"
#include <sys/cdefs.h>
__RCSID("$NetBSD: t_syscall.c,v 1.3 2018/05/28 07:55:56 martin Exp $");
#include "atf-c.h"
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <err.h>
#include <string.h>
#include <stdlib.h>
#include <sys/mman.h>
#include <sys/endian.h>
#include <sys/syscall.h>
#if !defined(_LP64) && BYTE_ORDER == _BIG_ENDIAN
#define __SYSCALL_TO_UINTPTR_T(V) ((uintptr_t)((V)>>32))
#else
#define __SYSCALL_TO_UINTPTR_T(V) ((uintptr_t)(V))
#endif
static const char secrect_data[1024] = {
"my secret key\n"
};
#define FILE_NAME "dummy"
#ifndef _LP64
ATF_TC(mmap_syscall);
ATF_TC_HEAD(mmap_syscall, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests mmap(2) via syscall(2)");
}
ATF_TC_BODY(mmap_syscall, tc)
{
int fd;
const char *p;
fd = open(FILE_NAME, O_RDWR|O_CREAT|O_TRUNC, 0666);
ATF_REQUIRE(fd != -1);
write(fd, secrect_data, sizeof(secrect_data));
p = (const char *)syscall(SYS_mmap,
0, sizeof(secrect_data), PROT_READ, MAP_PRIVATE, fd, 0, 0, 0);
ATF_REQUIRE(p != NULL);
ATF_REQUIRE(strcmp(p, secrect_data) == 0);
}
#endif
ATF_TC(mmap___syscall);
ATF_TC_HEAD(mmap___syscall, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests mmap(2) via __syscall(2)");
}
ATF_TC_BODY(mmap___syscall, tc)
{
int fd;
const char *p;
fd = open(FILE_NAME, O_RDWR|O_CREAT|O_TRUNC, 0666);
ATF_REQUIRE(fd != -1);
write(fd, secrect_data, sizeof(secrect_data));
p = (const char *)__SYSCALL_TO_UINTPTR_T(__syscall(SYS_mmap,
0, sizeof(secrect_data), PROT_READ, MAP_PRIVATE, fd,
/* pad*/ 0, (off_t)0));
ATF_REQUIRE(p != NULL);
ATF_REQUIRE(strcmp(p, secrect_data) == 0);
}
ATF_TP_ADD_TCS(tp)
{
#ifndef _LP64
ATF_TP_ADD_TC(tp, mmap_syscall);
#endif
ATF_TP_ADD_TC(tp, mmap___syscall);
return atf_no_error();
}
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