7e6cabd06e
Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann <jschauma@stevens.edu> Pull Request: https://github.com/freebsd/freebsd/pull/96
177 lines
5.2 KiB
Groff
177 lines
5.2 KiB
Groff
.\" Copyright (c) 1983, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)mkdir.2 8.2 (Berkeley) 12/11/93
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.\" $FreeBSD$
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.\"
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.Dd June 26, 2008
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.Dt MKDIR 2
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.Os
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.Sh NAME
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.Nm mkdir ,
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.Nm mkdirat
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.Nd make a directory file
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In sys/stat.h
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.Ft int
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.Fn mkdir "const char *path" "mode_t mode"
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.Ft int
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.Fn mkdirat "int fd" "const char *path" "mode_t mode"
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.Sh DESCRIPTION
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The directory
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.Fa path
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is created with the access permissions specified by
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.Fa mode
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and restricted by the
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.Xr umask 2
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of the calling process.
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.Pp
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The directory's owner ID is set to the process's effective user ID.
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The directory's group ID is set to that of the parent directory in
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which it is created.
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.Pp
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The
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.Fn mkdirat
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system call is equivalent to
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.Fn mkdir
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except in the case where
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.Fa path
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specifies a relative path.
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In this case the newly created directory is created relative to the
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directory associated with the file descriptor
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.Fa fd
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instead of the current working directory.
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If
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.Fn mkdirat
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is passed the special value
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.Dv AT_FDCWD
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in the
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.Fa fd
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parameter, the current working directory is used and the behavior is
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identical to a call to
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.Fn mkdir .
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.Sh RETURN VALUES
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.Rv -std mkdir
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.Sh ERRORS
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The
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.Fn mkdir
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system call
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will fail and no directory will be created if:
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.Bl -tag -width Er
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.It Bq Er ENOTDIR
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A component of the path prefix is not a directory.
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.It Bq Er ENAMETOOLONG
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A component of a pathname exceeded 255 characters,
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or an entire path name exceeded 1023 characters.
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.It Bq Er ENOENT
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A component of the path prefix does not exist.
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.It Bq Er EACCES
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Search permission is denied for a component of the path prefix,
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or write permission is denied
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on the parent directory of the directory to be created.
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.It Bq Er ELOOP
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Too many symbolic links were encountered in translating the pathname.
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.It Bq Er EPERM
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The parent directory of the directory to be created has its immutable flag set,
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see the
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.Xr chflags 2
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manual page for more information.
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.It Bq Er EROFS
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The named directory would reside on a read-only file system.
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.It Bq Er EMLINK
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The new directory cannot be created because the parent directory contains
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too many subdirectories.
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.It Bq Er EEXIST
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The named file exists.
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.It Bq Er ENOSPC
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The new directory cannot be created because there is no space left
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on the file system that will contain the directory.
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.It Bq Er ENOSPC
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There are no free inodes on the file system on which the
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directory is being created.
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.It Bq Er EDQUOT
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The new directory cannot be created because the user's
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quota of disk blocks on the file system that will
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contain the directory has been exhausted.
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.It Bq Er EDQUOT
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The user's quota of inodes on the file system on
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which the directory is being created has been exhausted.
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.It Bq Er EIO
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An I/O error occurred while making the directory entry or allocating the inode.
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.It Bq Er EIO
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An I/O error occurred while reading from or writing to the file system.
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.It Bq Er EFAULT
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The
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.Fa path
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argument
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points outside the process's allocated address space.
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.El
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.Pp
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In addition to the errors returned by the
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.Fn mkdir ,
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the
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.Fn mkdirat
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may fail if:
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.Bl -tag -width Er
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.It Bq Er EBADF
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The
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.Fa path
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argument does not specify an absolute path and the
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.Fa fd
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argument is neither
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.Dv AT_FDCWD
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nor a valid file descriptor open for searching.
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.It Bq Er ENOTDIR
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The
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.Fa path
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argument is not an absolute path and
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.Fa fd
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is neither
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.Dv AT_FDCWD
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nor a file descriptor associated with a directory.
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.El
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.Sh SEE ALSO
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.Xr chflags 2 ,
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.Xr chmod 2 ,
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.Xr stat 2 ,
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.Xr umask 2
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.Sh STANDARDS
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The
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.Fn mkdir
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system call is expected to conform to
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.St -p1003.1-90 .
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The
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.Fn mkdirat
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system call follows The Open Group Extended API Set 2 specification.
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.Sh HISTORY
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The
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.Fn mkdirat
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system call appeared in
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.Fx 8.0 .
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