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/*-
* Copyright (c) 2016 Maksym Sobolyev
* 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 AUTHOR 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 AUTHOR 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>
__FBSDID("$FreeBSD$");
#include <sys/stat.h>
#include <dlfcn.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <atf-c.h>
static const char *funname;
static char *soname;
static void
sigsegv_handler(int sig __unused)
{
unlink(soname);
free(soname);
atf_tc_fail("got SIGSEGV in the %s(3)", funname);
}
ATF_TC(dlopen_empty_test);
ATF_TC_HEAD(dlopen_empty_test, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the dlopen() of an empty file "
"returns an error");
}
ATF_TC_BODY(dlopen_empty_test, tc)
{
char tempname[] = "/tmp/temp.XXXXXX";
char *fname;
int fd;
void *dlh;
struct sigaction act, oact;
fname = mktemp(tempname);
ATF_REQUIRE_MSG(fname != NULL, "mktemp failed; errno=%d", errno);
asprintf(&soname, "%s.so", fname);
ATF_REQUIRE_MSG(soname != NULL, "asprintf failed; errno=%d", ENOMEM);
fd = open(soname, O_WRONLY | O_CREAT | O_TRUNC, DEFFILEMODE);
ATF_REQUIRE_MSG(fd != -1, "open(\"%s\") failed; errno=%d", soname, errno);
close(fd);
act.sa_handler = sigsegv_handler;
act.sa_flags = 0;
sigemptyset(&act.sa_mask);
ATF_CHECK_MSG(sigaction(SIGSEGV, &act, &oact) != -1,
"sigaction() failed");
funname = "dlopen";
dlh = dlopen(soname, RTLD_LAZY);
if (dlh != NULL) {
funname = "dlclose";
dlclose(dlh);
}
ATF_REQUIRE_MSG(dlh == NULL, "dlopen(\"%s\") did not fail", soname);
unlink(soname);
free(soname);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, dlopen_empty_test);
return (atf_no_error());
}
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