MKDIR(2) MidnightBSD System Calls Manual MKDIR(2)

NAME

mkdir — make a directory file

LIBRARY

Standard C Library (libc, −lc)

SYNOPSIS

#include <sys/types.h>
#include <sys/stat.h>

int

mkdir(const char *path, mode_t mode);

DESCRIPTION

The directory path is created with the access permissions specified by mode and restricted by the umask(2) of the calling process.

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.

RETURN VALUES

The mkdir() function returns the value 0 if successful; otherwise the value −1 is returned and the global variable errno is set to indicate the error.

ERRORS

The mkdir() system call will fail and no directory will be created if:

[ENOTDIR]

A component of the path prefix is not a directory.

[ENAMETOOLONG]

A component of a pathname exceeded 255 characters, or an entire path name exceeded 1023 characters.

[ENOENT]

A component of the path prefix does not exist.

[EACCES]

Search permission is denied for a component of the path prefix, or write permission is denied on the parent directory of the directory to be created.

[ELOOP]

Too many symbolic links were encountered in translating the pathname.

[EPERM]

The parent directory of the directory to be created has its immutable flag set, see the chflags(2) manual page for more information.

[EROFS]

The named directory would reside on a read-only file system.

[EEXIST]

The named file exists.

[ENOSPC]

The new directory cannot be created because there is no space left on the file system that will contain the directory.

[ENOSPC]

There are no free inodes on the file system on which the directory is being created.

[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.

[EDQUOT]

The user’s quota of inodes on the file system on which the directory is being created has been exhausted.

[EIO]

An I/O error occurred while making the directory entry or allocating the inode.

[EIO]

An I/O error occurred while reading from or writing to the file system.

[EFAULT]

The path argument points outside the process’s allocated address space.

SEE ALSO

chflags(2), chmod(2), stat(2), umask(2)

STANDARDS

The mkdir() system call is expected to conform to ISO/IEC 9945-1:1990 (‘‘POSIX.1’’).

MidnightBSD 0.3 December 9, 2006 MidnightBSD 0.3