NAME
mkdir - make a directory file
SYNOPSIS
#include <sys/types.h>
#include <sys/stat.h>
int mkdir(const char *path, mode_t mode)
DESCRIPTION
Mkdir creates a new directory file with name path. The mode
of the new file is initialized from mode. (The protection
part of the mode is modified by the process's mode mask; see
umask(2)).
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.
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 umask(2).
RETURN VALUE
A 0 return value indicates success. A -1 return value indi-
cates an error, and an error code is stored in errno.
ERRORS
Mkdir will fail and no directory will be created if:
[ENOTDIR] A component of the path prefix is not a
directory.
[ENAMETOOLONG] The path name exceeds PATH_MAX characters.
[ENOENT] A component of the path prefix does not
exist.
[EACCES] Search permission is denied for a component
of the path prefix.
[ELOOP] Too many symbolic links were encountered in
translating the pathname. (Minix-vmd)
[EROFS] The named file resides on a read-only file
system.
[EEXIST] The named file exists.
[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.
[ENOSPC] The new directory cannot be created because
there there is no space left on the file sys-
tem that will contain the directory.
[ENOSPC] There are no free inodes on the file system
on which the directory is being created.
[EIO] An I/O error occurred while making the direc-
tory entry or allocating the inode.
[EIO] An I/O error occurred while reading from or
writing to the file system.
[EFAULT] Path points outside the process's allocated
address space.
SEE ALSO
chmod(2), stat(2), umask(2).