[unix-history] / usr / src / man / man2 / mkdir.2

.\" Copyright (c) 1983 Regents of the University of California.
.\" All rights reserved.  The Berkeley software License Agreement
.\" specifies the terms and conditions for redistribution.
.\"
.\"	@(#)mkdir.2	6.4 (Berkeley) 8/26/85
.\"
.TH MKDIR 2 "August 26, 1985"
.UC 5
.SH NAME
mkdir \- make a directory file
.SH SYNOPSIS
.nf
.ft B
mkdir(path, mode)
char *path;
int mode;
.fi
.ft R
.SH DESCRIPTION
.I Mkdir
creates a new directory file with name
.IR path .
The mode of the new file
is initialized from
.IR mode .
(The protection part of the mode
is modified by the process's mode mask; see
.IR umask (2)).
.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.
.PP
The low-order 9 bits of mode are modified by the process's
file mode creation mask: all bits set in the process's file mode
creation mask are cleared.  See
.IR umask (2).
.SH "RETURN VALUE
A 0 return value indicates success.  A \-1 return value
indicates an error, and an error code is stored in
.I errno.
.SH "ERRORS
.I Mkdir
will fail and no directory will be created if:
.TP 15
[ENOTDIR]
A component of the path prefix is not a directory.
.TP 15
[EINVAL]
The pathname contains a character with the high-order bit set.
.TP 15
[ENAMETOOLONG]
A component of a pathname exceeded 255 characters,
or an entire path name exceeded 1023 characters.
.TP 15
[ENOENT]
A component of the path prefix does not exist.
.TP 15
[EACCES]
Search permission is denied for a component of the path prefix.
.TP 15
[ELOOP]
Too many symbolic links were encountered in translating the pathname.
.TP 15
[EPERM]
The \fIpath\fP argument contains a byte with the high-order bit set.
.TP 15
[EROFS]
The named file resides on a read-only file system.
.TP 15
[EEXIST]
The named file exists.
.TP 15
[ENOSPC]
The directory in which the entry for the new directory is being placed
cannot be extended because there is no space left on the file
system containing the directory.
.TP 15
[ENOSPC]
The new directory cannot be created because there
there is no space left on the file
system that will contain the directory.
.TP 15
[ENOSPC]
There are no free inodes on the file system on which the
directory is being created.
.TP 15
[EDQUOT]
The directory in which the entry for the new directory
is being placed cannot be extended because the
user's quota of disk blocks on the file system
containing the directory has been exhausted.
.TP 15
[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.
.TP 15
[EDQUOT]
The user's quota of inodes on the file system on
which the directory is being created has been exhausted.
.TP 15
[EIO]
An I/O error occurred while making the directory entry or allocating the inode.
.TP 15
[EIO]
An I/O error occurred while reading from or writing to the file system.
.TP 15
[EFAULT]
.I Path
points outside the process's allocated address space.
.SH "SEE ALSO"
chmod(2), stat(2), umask(2)
Commit	Line	Data
9c8e3df4 KM	1	.\" Copyright (c) 1983 Regents of the University of California.
	2	.\" All rights reserved. The Berkeley software License Agreement
	3	.\" specifies the terms and conditions for redistribution.
	4	.\"
95f51977	5	.\" @(#)mkdir.2 6.4 (Berkeley) 8/26/85
9c8e3df4	6	.\"
95f51977	7	.TH MKDIR 2 "August 26, 1985"
9c8e3df4 KM	8	.UC 5
	9	.SH NAME
	10	mkdir \- make a directory file
	11	.SH SYNOPSIS
	12	.nf
	13	.ft B
	14	mkdir(path, mode)
	15	char *path;
	16	int mode;
	17	.fi
	18	.ft R
	19	.SH DESCRIPTION
	20	.I Mkdir
	21	creates a new directory file with name
	22	.IR path .
	23	The mode of the new file
	24	is initialized from
	25	.IR mode .
	26	(The protection part of the mode
	27	is modified by the process's mode mask; see
	28	.IR umask (2)).
	29	.PP
	30	The directory's owner ID is set to the process's effective user ID.
	31	The directory's group ID is set to that of the parent directory in
	32	which it is created.
	33	.PP
	34	The low-order 9 bits of mode are modified by the process's
	35	file mode creation mask: all bits set in the process's file mode
	36	creation mask are cleared. See
	37	.IR umask (2).
	38	.SH "RETURN VALUE
	39	A 0 return value indicates success. A \-1 return value
	40	indicates an error, and an error code is stored in
	41	.I errno.
	42	.SH "ERRORS
	43	.I Mkdir
	44	will fail and no directory will be created if:
	45	.TP 15
9c8e3df4 KM	46	[ENOTDIR]
	47	A component of the path prefix is not a directory.
	48	.TP 15
b5984ffe KM	49	[EINVAL]
	50	The pathname contains a character with the high-order bit set.
	51	.TP 15
	52	[ENAMETOOLONG]
	53	A component of a pathname exceeded 255 characters,
	54	or an entire path name exceeded 1023 characters.
	55	.TP 15
9c8e3df4 KM	56	[ENOENT]
	57	A component of the path prefix does not exist.
	58	.TP 15
b5984ffe KM	59	[EACCES]
	60	Search permission is denied for a component of the path prefix.
	61	.TP 15
	62	[ELOOP]
	63	Too many symbolic links were encountered in translating the pathname.
	64	.TP 15
	65	[EPERM]
b5984ffe KM	66	The \fIpath\fP argument contains a byte with the high-order bit set.
b5984ffe KM	67	.TP 15
9c8e3df4 KM	68	[EROFS]
	69	The named file resides on a read-only file system.
	70	.TP 15
	71	[EEXIST]
	72	The named file exists.
	73	.TP 15
fd690c8b KM	74	[ENOSPC]
	75	The directory in which the entry for the new directory is being placed
	76	cannot be extended because there is no space left on the file
	77	system containing the directory.
	78	.TP 15
	79	[ENOSPC]
	80	The new directory cannot be created because there
	81	there is no space left on the file
	82	system that will contain the directory.
	83	.TP 15
	84	[ENOSPC]
	85	There are no free inodes on the file system on which the
	86	directory is being created.
	87	.TP 15
	88	[EDQUOT]
	89	The directory in which the entry for the new directory
	90	is being placed cannot be extended because the
	91	user's quota of disk blocks on the file system
	92	containing the directory has been exhausted.
	93	.TP 15
	94	[EDQUOT]
	95	The new directory cannot be created because the user's
	96	quota of disk blocks on the file system that will
	97	contain the directory has been exhausted.
	98	.TP 15
	99	[EDQUOT]
	100	The user's quota of inodes on the file system on
	101	which the directory is being created has been exhausted.
	102	.TP 15
b5984ffe KM	103	[EIO]
	104	An I/O error occurred while making the directory entry or allocating the inode.
	105	.TP 15
fd690c8b KM	106	[EIO]
	107	An I/O error occurred while reading from or writing to the file system.
	108	.TP 15
9c8e3df4 KM	109	[EFAULT]
	110	.I Path
	111	points outside the process's allocated address space.
9c8e3df4 KM	112	.SH "SEE ALSO"
9c8e3df4 KM	113	chmod(2), stat(2), umask(2)