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/**
* Seccomp Library test program
*
* Copyright (c) 2020 Cisco Systems, Inc. <pmoore2@cisco.com>
* Author: Paul Moore <paul@paul-moore.com>
*/
/*
* This library is free software; you can redistribute it and/or modify it
* under the terms of version 2.1 of the GNU Lesser General Public License as
* published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, see <http://www.gnu.org/licenses>.
*/
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <seccomp.h>
#include "util.h"
int main(int argc, char *argv[])
{
int rc;
int fd;
scmp_filter_ctx ctx = NULL;
rc = seccomp_api_set(3);
if (rc != 0)
return EOPNOTSUPP;
ctx = seccomp_init(SCMP_ACT_ALLOW);
if (ctx == NULL) {
rc = ENOMEM;
goto out;
}
rc = seccomp_attr_set(ctx, SCMP_FLTATR_API_SYSRAWRC, 1);
if (rc != 0)
goto out;
/* we must use a closed/invalid fd for this to work */
fd = dup(2);
close(fd);
rc = seccomp_export_pfc(ctx, fd);
if (rc == -EBADF)
rc = 0;
else
rc = -1;
out:
seccomp_release(ctx);
return (rc < 0 ? -rc : rc);
}
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