1 .\" $NetBSD: mkdir.2,v 1.29 2013/10/15 11:43:21 njoly Exp $
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30 .\" @(#)mkdir.2 8.2 (Berkeley) 12/11/93
38 .Nd make a directory file
44 .Fn mkdir "const char *path" "mode_t mode"
48 .Fn mkdirat "int fd" "const char *path" "mode_t mode"
52 is created with the access permissions specified by
56 of the calling process.
64 In that case, it is looked up from a directory whose file
65 descriptor was passed as
67 Search permission is required this directory.
68 .\" (These alternatives await a decision about the semantics of O_SEARCH)
69 .\" Search permission is required on this directory
72 .\" was opened with the
76 .\" This file descriptor must have been opened with the
82 in order to specify the current directory.
84 The directory's owner ID is set to the process's effective user ID.
85 The directory's group ID is set to that of the parent directory in
88 .Rv -std mkdir mkdirat
94 will fail and no directory will be created if:
97 Search permission is denied for a component of the path prefix.
99 The new directory cannot be created because the user's
100 quota of disk blocks on the file system that will
101 contain the directory has been exhausted.
102 Or, the user's quota of inodes on the file system on
103 which the directory is being created has been exhausted.
105 The named file exists.
108 points outside the process's allocated address space.
110 An I/O error occurred while making the directory entry or allocating the inode;
111 or an I/O error occurred while reading from or writing to the file system.
113 Too many symbolic links were encountered in translating the pathname.
114 .It Bq Er ENAMETOOLONG
115 A component of a pathname exceeded
117 characters, or an entire path name exceeded
121 A component of the path prefix does not exist.
123 The new directory cannot be created because there is no space left
124 on the file system that will contain the directory.
125 Or, there are no free inodes on the file system on which the
126 directory is being created.
128 A component of the path prefix is not a directory.
130 The named file resides on a read-only file system.
139 does not specify an absolute path and
143 nor a valid file descriptor open for reading or searching.
146 is not an absolute path and
148 is a file descriptor associated with a non-directory file.