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+.\" 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.
+.\" 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
+.\" $FreeBSD$
+.\"
+.Dd December 9, 2006
+.Dt MKDIR 2
+.Os
+.Sh NAME
+.Nm mkdir
+.Nd make a directory file
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In 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
+.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
+.Rv -std mkdir
+.Sh ERRORS
+The
+.Fn mkdir
+system call
+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 255 characters,
+or an entire path name exceeded 1023 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,
+or write permission is denied
+on the parent directory of the directory to be created.
+.It Bq Er ELOOP
+Too many symbolic links were encountered in translating the pathname.
+.It Bq Er EPERM
+The parent directory of the directory to be created has its immutable flag set,
+see the
+.Xr chflags 2
+manual page for more information.
+.It Bq Er EROFS
+The named directory would reside 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
+The
+.Fa path
+argument
+points outside the process's allocated address space.
+.El
+.Sh SEE ALSO
+.Xr chflags 2 ,
+.Xr chmod 2 ,
+.Xr stat 2 ,
+.Xr umask 2
+.Sh STANDARDS
+The
+.Fn mkdir
+system call is expected to conform to
+.St -p1003.1-90 .