1.\" $NetBSD: mkdir.2,v 1.14 2001/09/16 01:39:01 wiz Exp $ 2.\" 3.\" Copyright (c) 1983, 1991, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgement: 16.\" This product includes software developed by the University of 17.\" California, Berkeley and its contributors. 18.\" 4. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" @(#)mkdir.2 8.2 (Berkeley) 12/11/93 35.\" 36.Dd December 11, 1993 37.Dt MKDIR 2 38.Os 39.Sh NAME 40.Nm mkdir 41.Nd make a directory file 42.Sh LIBRARY 43.Lb libc 44.Sh SYNOPSIS 45.Fd #include <sys/types.h> 46.Fd #include <sys/stat.h> 47.Ft int 48.Fn mkdir "const char *path" "mode_t mode" 49.Sh DESCRIPTION 50The directory 51.Fa path 52is created with the access permissions specified by 53.Fa mode 54and restricted by the 55.Xr umask 2 56of the calling process. 57.Pp 58The directory's owner ID is set to the process's effective user ID. 59The directory's group ID is set to that of the parent directory in 60which it is created. 61.Sh RETURN VALUES 62A 0 return value indicates success. A -1 return value 63indicates an error, and an error code is stored in 64.Va errno . 65.Sh ERRORS 66.Fn mkdir 67will fail and no directory will be created if: 68.Bl -tag -width Er 69.It Bq Er ENOTDIR 70A component of the path prefix is not a directory. 71.It Bq Er ENAMETOOLONG 72A component of a pathname exceeded 73.Dv {NAME_MAX} 74characters, or an entire path name exceeded 75.Dv {PATH_MAX} 76characters. 77.It Bq Er ENOENT 78A component of the path prefix does not exist. 79.It Bq Er EACCES 80Search permission is denied for a component of the path prefix. 81.It Bq Er ELOOP 82Too many symbolic links were encountered in translating the pathname. 83.It Bq Er EROFS 84The named file resides on a read-only file system. 85.It Bq Er EEXIST 86The named file exists. 87.It Bq Er ENOSPC 88The new directory cannot be created because there is no space left 89on the file system that will contain the directory. 90.It Bq Er ENOSPC 91There are no free inodes on the file system on which the 92directory is being created. 93.It Bq Er EDQUOT 94The new directory cannot be created because the user's 95quota of disk blocks on the file system that will 96contain the directory has been exhausted. 97.It Bq Er EDQUOT 98The user's quota of inodes on the file system on 99which the directory is being created has been exhausted. 100.It Bq Er EIO 101An I/O error occurred while making the directory entry or allocating the inode. 102.It Bq Er EIO 103An I/O error occurred while reading from or writing to the file system. 104.It Bq Er EFAULT 105.Fa path 106points outside the process's allocated address space. 107.El 108.Sh SEE ALSO 109.Xr chmod 2 , 110.Xr stat 2 , 111.Xr umask 2 112.Sh STANDARDS 113The 114.Fn mkdir 115function conforms to 116.St -p1003.1-90 . 117