mknod(2) [netbsd man page]

MKNOD(2)						      BSD System Calls Manual							  MKNOD(2)

NAME

     mknod -- make a special file node

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <sys/stat.h>

     int
     mknod(const char *path, mode_t mode, dev_t dev);

DESCRIPTION

     The device special file path is created with the major and minor device numbers specified by dev.	The access permissions of path are
     extracted from mode, modified by the umask(2) of the parent process.

     mknod() requires super-user privileges.

RETURN VALUES

     Upon successful completion a value of 0 is returned.  Otherwise, a value of -1 is returned and errno is set to indicate the error.

ERRORS

     mknod() will fail and the file will be not created if:

     [EACCES]		Search permission is denied for a component of the path prefix.

     [EDQUOT]		The directory in which the entry for the new node is being placed cannot be extended because the user's quota of disk
			blocks on the file system containing the directory has been exhausted; or the user's quota of inodes on the file system on
			which the node is being created has been exhausted.

     [EEXIST]		The named file exists.

     [EFAULT]		path points outside the process's allocated address space.

     [EINVAL]		The supplied mode or dev is invalid.

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

     [ELOOP]		Too many symbolic links were encountered in translating the pathname.

     [ENAMETOOLONG]	A component of a pathname exceeded {NAME_MAX} characters, or an entire path name exceeded {PATH_MAX} characters.

     [ENOENT]		A component of the path prefix does not exist.

     [ENOSPC]		The directory in which the entry for the new node is being placed cannot be extended because there is no space left on the
			file system containing the directory; or there are no free inodes on the file system on which the node is being created.

     [ENOTDIR]		A component of the path prefix is not a directory.

     [EPERM]		The process's effective user ID is not super-user.

     [EROFS]		The named file resides on a read-only file system.

SEE ALSO

     chmod(2), mkfifo(2), stat(2), umask(2)

HISTORY

     A mknod() function call appeared in Version 6 AT&T UNIX.

BSD
								   July 3, 2011 							       BSD

Check Out this Related Man Page

MKDIR(2)						      BSD System Calls Manual							  MKDIR(2)

NAME

     mkdir -- make a directory file

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #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

     A 0 return value indicates success.  A -1 return value indicates 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]	A component of a pathname exceeded {NAME_MAX} characters, or an entire path name exceeded {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.

     [EROFS]		The named file resides 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]		path points outside the process's allocated address space.

SEE ALSO

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

STANDARDS

     The mkdir() function conforms to ISO/IEC 9945-1:1990 (``POSIX.1'').

BSD
								 December 27, 2005							       BSD

Linux and UNIX Man Pages

mknod(2) [netbsd man page]

Check Out this Related Man Page