--- /dev/null
+++ Libc/Libc-391.2.7/gen/OSSystemInfo.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#include <stdbool.h>
+
+static int	osi_oid[2] = {-1, 0};
+
+bool
+OSSystemInfo(int selector, unsigned long long *resultp)
+{
+	int oid[3];
+	size_t size;
+
+	/*
+	 * Check cached OID, look it up if we haven't already.
+	 *
+	 * NB. Whilst this isn't strictly thread safe, since the
+	 *     result as written by any thread will be the same
+	 *     there is no actual risk of corruption.
+	 */
+	if (osi_oid[0] == -1) {
+		size = 2;
+		if (sysctlnametomib("hw.systeminfo", &osi_oid, &size) ||
+		    (size != 2))
+			return(false);
+	}
+
+	/* build OID */
+	oid[0] = osi_oid[0];
+	oid[1] = osi_oid[1];
+	oid[2] = selector;
+	
+	/* make the call */
+	size = sizeof(*resultp);
+	if (sysctl(oid, 3, resultp, &size, NULL, 0) ||
+	    (size != sizeof(*resultp)))
+		return(false);
+
+	return(true);
+}
+