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