1 files changed, 89 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/lib/libc/gen/isqemu.h b/contrib/netbsd-tests/lib/libc/gen/isqemu.h
new file mode 100644
index 000000000000..c44ffda082a0
--- /dev/null
+++ b/contrib/netbsd-tests/lib/libc/gen/isqemu.h
@@ -0,0 +1,89 @@
+/*	$NetBSD: isqemu.h,v 1.4 2015/01/03 14:21:05 gson Exp $	*/
+
+/*-
+ * Copyright (c) 2013 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
+ * 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. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * 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 <sys/param.h>
+#include <sys/sysctl.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <err.h>
+
+static __inline bool
+isQEMU(void) {
+#ifdef __FreeBSD__
+	char *vm_guest_name_buf;
+	size_t len;
+	bool is_vm;
+
+	if (sysctlbyname("kern.vm_guest", NULL, &len, NULL, 0) == -1)
+		err(EXIT_FAILURE, "sysctl");
+
+	if ((vm_guest_name_buf = malloc(len)) == NULL)
+		err(EXIT_FAILURE, "malloc");
+
+	if (sysctlbyname("kern.vm_guest", vm_guest_name_buf, &len, NULL, 0)
+	    == -1)
+		err(EXIT_FAILURE, "sysctl");
+
+	if (strcmp(vm_guest_name_buf, "none") == 0)
+		is_vm = false;
+	else
+		is_vm = true;
+
+	free(vm_guest_name_buf);
+
+	return is_vm;
+#else
+#if defined(__i386__) || defined(__x86_64__)
+	char name[1024];
+	size_t len = sizeof(name);
+
+	if (sysctlbyname("machdep.cpu_brand", name, &len, NULL, 0) == -1) {
+		if (errno == ENOENT)
+			return false;
+		err(EXIT_FAILURE, "sysctl");
+	}
+	return strstr(name, "QEMU") != NULL;
+#else
+	return false;
+#endif
+#endif
+}
+
+#ifdef TEST
+int
+main(void) {
+	return isQEMU();
+}
+#endif