initial import of NetBSD tree

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diff --git a/lib/libc/sys/mkdir.2 b/lib/libc/sys/mkdir.2
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+.\"	$NetBSD: mkdir.2,v 1.8 1995/02/27 12:34:22 cgd Exp $
+.\"
+.\" Copyright (c) 1983, 1991, 1993
+.\"	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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. 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.
+.\"
+.\"     @(#)mkdir.2	8.2 (Berkeley) 12/11/93
+.\"
+.Dd December 11, 1993
+.Dt MKDIR 2
+.Os BSD 4.2
+.Sh NAME
+.Nm mkdir
+.Nd make a directory file
+.Sh SYNOPSIS
+.Fd #include <sys/types.h>
+.Fd #include <sys/stat.h>
+.Ft int
+.Fn mkdir "const char *path" "mode_t mode"
+.Sh DESCRIPTION
+The directory
+.Fa path
+is created with the access permissions specified by
+.Fa mode
+and restricted by the the
+.Xr umask 2
+of the calling process.
+.Pp
+The directory's owner ID is set to the process's effective user ID.
+The directory's group ID is set to that of the parent directory in
+which it is created.
+.Sh RETURN VALUES
+A 0 return value indicates success.  A -1 return value
+indicates an error, and an error code is stored in
+.Va errno .
+.Sh ERRORS
+.Fn Mkdir
+will fail and no directory will be created if:
+.Bl -tag -width Er
+.It Bq Er ENOTDIR
+A component of the path prefix is not a directory.
+.It Bq Er ENAMETOOLONG
+A component of a pathname exceeded 
+.Dv {NAME_MAX}
+characters, or an entire path name exceeded 
+.Dv {PATH_MAX}
+characters.
+.It Bq Er ENOENT
+A component of the path prefix does not exist.
+.It Bq Er EACCES
+Search permission is denied for a component of the path prefix.
+.It Bq Er ELOOP
+Too many symbolic links were encountered in translating the pathname.
+.It Bq Er EROFS
+The named file resides on a read-only file system.
+.It Bq Er EEXIST
+The named file exists.
+.It Bq Er ENOSPC
+The new directory cannot be created because there is no space left
+on the file system that will contain the directory.
+.It Bq Er ENOSPC
+There are no free inodes on the file system on which the
+directory is being created.
+.It Bq Er EDQUOT
+The new directory cannot be created because the user's
+quota of disk blocks on the file system that will
+contain the directory has been exhausted.
+.It Bq Er EDQUOT
+The user's quota of inodes on the file system on
+which the directory is being created has been exhausted.
+.It Bq Er EIO
+An I/O error occurred while making the directory entry or allocating the inode.
+.It Bq Er EIO
+An I/O error occurred while reading from or writing to the file system.
+.It Bq Er EFAULT
+.Fa Path
+points outside the process's allocated address space.
+.El
+.Sh SEE ALSO
+.Xr chmod 2 ,
+.Xr stat 2 ,
+.Xr umask 2
+.Sh STANDARDS
+The 
+.Fn mkdir
+function conforms to 
+.St -p1003.1-88 .