Initial Contribution
diff --git a/libc/include/limits.h b/libc/include/limits.h
new file mode 100644
index 0000000..c204e4d
--- /dev/null
+++ b/libc/include/limits.h
@@ -0,0 +1,96 @@
+/* $OpenBSD: limits.h,v 1.13 2005/12/31 19:29:38 millert Exp $ */
+/* $NetBSD: limits.h,v 1.7 1994/10/26 00:56:00 cgd Exp $ */
+
+/*
+ * Copyright (c) 1988 The Regents of the University of California.
+ * 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. Neither the name of the University 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 REGENTS 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 REGENTS 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.
+ *
+ * @(#)limits.h 5.9 (Berkeley) 4/3/91
+ */
+
+#ifndef _LIMITS_H_
+#define _LIMITS_H_
+
+#include <sys/cdefs.h>
+
+#if __POSIX_VISIBLE
+#define _POSIX_ARG_MAX 4096
+#define _POSIX_CHILD_MAX 25
+#define _POSIX_LINK_MAX 8
+#define _POSIX_MAX_CANON 255
+#define _POSIX_MAX_INPUT 255
+#define _POSIX_NAME_MAX 14
+#define _POSIX_NGROUPS_MAX 0
+#define _POSIX_OPEN_MAX 16
+#define _POSIX_PATH_MAX 256
+#define _POSIX_PIPE_BUF 512
+#define _POSIX_RE_DUP_MAX 255
+#define _POSIX_SSIZE_MAX 32767
+#define _POSIX_STREAM_MAX 8
+#define _POSIX_SYMLINK_MAX 255
+#define _POSIX_SYMLOOP_MAX 8
+#define _POSIX_TZNAME_MAX 3
+
+#define _POSIX2_BC_BASE_MAX 99
+#define _POSIX2_BC_DIM_MAX 2048
+#define _POSIX2_BC_SCALE_MAX 99
+#define _POSIX2_BC_STRING_MAX 1000
+#define _POSIX2_COLL_WEIGHTS_MAX 2
+#define _POSIX2_EXPR_NEST_MAX 32
+#define _POSIX2_LINE_MAX 2048
+#define _POSIX2_RE_DUP_MAX _POSIX_RE_DUP_MAX
+
+#if __POSIX_VISIBLE >= 200112
+#define _POSIX_TTY_NAME_MAX 9 /* includes trailing NUL */
+#define _POSIX_LOGIN_NAME_MAX 9 /* includes trailing NUL */
+#endif /* __POSIX_VISIBLE >= 200112 */
+#endif /* __POSIX_VISIBLE */
+
+#if __XPG_VISIBLE
+#define PASS_MAX 128 /* _PASSWORD_LEN from <pwd.h> */
+
+#define NL_ARGMAX 9
+#define NL_LANGMAX 14
+#define NL_MSGMAX 32767
+#define NL_NMAX 1
+#define NL_SETMAX 255
+#define NL_TEXTMAX 255
+
+#define TMP_MAX 308915776
+#endif /* __XPG_VISIBLE */
+
+#include <sys/limits.h>
+
+#if __POSIX_VISIBLE
+#include <arch/syslimits.h>
+#endif
+
+#ifndef PAGESIZE
+#define PAGESIZE PAGE_SIZE
+#endif
+
+#endif /* !_LIMITS_H_ */