--- /dev/null
+/*
+ * Check how seccomp SECCOMP_SET_MODE_STRICT is decoded.
+ *
+ * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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 "tests.h"
+#include <sys/syscall.h>
+
+#if defined __NR_seccomp && defined __NR_exit
+
+# include <assert.h>
+# include <errno.h>
+# include <stdio.h>
+# include <unistd.h>
+
+int
+main(void)
+{
+ static const char text1[] =
+ "seccomp(SECCOMP_SET_MODE_STRICT, 0, NULL) = 0\n";
+ static const char text2[] = "+++ exited with 0 +++\n";
+ const unsigned long addr = (unsigned long) 0xfacefeeddeadbeef;
+ int rc = 0;
+
+ assert(syscall(__NR_seccomp, -1L, -1L, addr) == -1);
+ printf("seccomp(%#x /* SECCOMP_SET_MODE_??? */, %u, %#lx) = -1 %s (%m)\n",
+ -1, -1, addr, ENOSYS == errno ? "ENOSYS" : "EINVAL");
+ fflush(stdout);
+
+ if (syscall(__NR_seccomp, 0, 0, 0)) {
+ printf("seccomp(SECCOMP_SET_MODE_STRICT, 0, NULL) = -1 %s (%m)\n",
+ ENOSYS == errno ? "ENOSYS" : "EINVAL");
+ fflush(stdout);
+ } else {
+ rc += write(1, text1, LENGTH_OF(text1)) != LENGTH_OF(text1);
+ }
+
+ rc += write(1, text2, LENGTH_OF(text2)) != LENGTH_OF(text2);
+ return !!syscall(__NR_exit, rc);
+}
+
+#else
+
+SKIP_MAIN_UNDEFINED("__NR_seccomp && __NR_exit")
+
+#endif